Move resetting of channels, sample_rate back to av_find_stream_info.
[ffmpeg.git] / ffmpeg.c
1 /*
2  * ffmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #include "libavformat/ffm.h" // not public API
50
51 #if CONFIG_AVFILTER
52 # include "libavfilter/avcodec.h"
53 # include "libavfilter/avfilter.h"
54 # include "libavfilter/avfiltergraph.h"
55 # include "libavfilter/vsink_buffer.h"
56 # include "libavfilter/vsrc_buffer.h"
57 #endif
58
59 #if HAVE_SYS_RESOURCE_H
60 #include <sys/types.h>
61 #include <sys/time.h>
62 #include <sys/resource.h>
63 #elif HAVE_GETPROCESSTIMES
64 #include <windows.h>
65 #endif
66 #if HAVE_GETPROCESSMEMORYINFO
67 #include <windows.h>
68 #include <psapi.h>
69 #endif
70
71 #if HAVE_SYS_SELECT_H
72 #include <sys/select.h>
73 #endif
74
75 #if HAVE_TERMIOS_H
76 #include <fcntl.h>
77 #include <sys/ioctl.h>
78 #include <sys/time.h>
79 #include <termios.h>
80 #elif HAVE_KBHIT
81 #include <conio.h>
82 #endif
83 #include <time.h>
84
85 #include "cmdutils.h"
86
87 #include "libavutil/avassert.h"
88
89 const char program_name[] = "ffmpeg";
90 const int program_birth_year = 2000;
91
92 /* select an input stream for an output stream */
93 typedef struct StreamMap {
94     int file_index;
95     int stream_index;
96     int sync_file_index;
97     int sync_stream_index;
98 } StreamMap;
99
100 /**
101  * select an input file for an output file
102  */
103 typedef struct MetadataMap {
104     int  file;      //< file index
105     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
106     int  index;     //< stream/chapter/program number
107 } MetadataMap;
108
109 typedef struct ChapterMap {
110     int in_file;
111     int out_file;
112 } ChapterMap;
113
114 static const OptionDef options[];
115
116 #define MAX_FILES 100
117 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
118
119 static const char *last_asked_format = NULL;
120 static double *input_files_ts_scale[MAX_FILES] = {NULL};
121 static int nb_input_files_ts_scale[MAX_FILES] = {0};
122
123 static AVFormatContext *output_files[MAX_FILES];
124 static int nb_output_files = 0;
125
126 static StreamMap *stream_maps = NULL;
127 static int nb_stream_maps;
128
129 /* first item specifies output metadata, second is input */
130 static MetadataMap (*meta_data_maps)[2] = NULL;
131 static int nb_meta_data_maps;
132 static int metadata_global_autocopy   = 1;
133 static int metadata_streams_autocopy  = 1;
134 static int metadata_chapters_autocopy = 1;
135
136 static ChapterMap *chapter_maps = NULL;
137 static int nb_chapter_maps;
138
139 /* indexed by output file stream index */
140 static int *streamid_map = NULL;
141 static int nb_streamid_map = 0;
142
143 static int frame_width  = 0;
144 static int frame_height = 0;
145 static float frame_aspect_ratio = 0;
146 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
147 static int frame_bits_per_raw_sample = 0;
148 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
149 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
150 static AVRational frame_rate;
151 static float video_qscale = 0;
152 static uint16_t *intra_matrix = NULL;
153 static uint16_t *inter_matrix = NULL;
154 static const char *video_rc_override_string=NULL;
155 static int video_disable = 0;
156 static int video_discard = 0;
157 static char *video_codec_name = NULL;
158 static unsigned int video_codec_tag = 0;
159 static char *video_language = NULL;
160 static int same_quality = 0;
161 static int do_deinterlace = 0;
162 static int top_field_first = -1;
163 static int me_threshold = 0;
164 static int intra_dc_precision = 8;
165 static int loop_input = 0;
166 static int loop_output = AVFMT_NOOUTPUTLOOP;
167 static int qp_hist = 0;
168 #if CONFIG_AVFILTER
169 static char *vfilters = NULL;
170 #endif
171
172 static int intra_only = 0;
173 static int audio_sample_rate = 0;
174 static int64_t channel_layout = 0;
175 #define QSCALE_NONE -99999
176 static float audio_qscale = QSCALE_NONE;
177 static int audio_disable = 0;
178 static int audio_channels = 0;
179 static char  *audio_codec_name = NULL;
180 static unsigned int audio_codec_tag = 0;
181 static char *audio_language = NULL;
182
183 static int subtitle_disable = 0;
184 static char *subtitle_codec_name = NULL;
185 static char *subtitle_language = NULL;
186 static unsigned int subtitle_codec_tag = 0;
187
188 static int data_disable = 0;
189 static char *data_codec_name = NULL;
190 static unsigned int data_codec_tag = 0;
191
192 static float mux_preload= 0.5;
193 static float mux_max_delay= 0.7;
194
195 static int64_t recording_time = INT64_MAX;
196 static int64_t start_time = 0;
197 static int64_t recording_timestamp = 0;
198 static int64_t input_ts_offset = 0;
199 static int file_overwrite = 0;
200 static AVDictionary *metadata;
201 static int do_benchmark = 0;
202 static int do_hex_dump = 0;
203 static int do_pkt_dump = 0;
204 static int do_psnr = 0;
205 static int do_pass = 0;
206 static const char *pass_logfilename_prefix;
207 static int audio_stream_copy = 0;
208 static int video_stream_copy = 0;
209 static int subtitle_stream_copy = 0;
210 static int data_stream_copy = 0;
211 static int video_sync_method= -1;
212 static int audio_sync_method= 0;
213 static float audio_drift_threshold= 0.1;
214 static int copy_ts= 0;
215 static int copy_tb= 0;
216 static int opt_shortest = 0;
217 static char *vstats_filename;
218 static FILE *vstats_file;
219 static int opt_programid = 0;
220 static int copy_initial_nonkeyframes = 0;
221
222 static int rate_emu = 0;
223
224 static int  video_channel = 0;
225 static char *video_standard;
226
227 static int audio_volume = 256;
228
229 static int exit_on_error = 0;
230 static int using_stdin = 0;
231 static int verbose = 1;
232 static int run_as_daemon  = 0;
233 static int thread_count= 1;
234 static int q_pressed = 0;
235 static int64_t video_size = 0;
236 static int64_t audio_size = 0;
237 static int64_t extra_size = 0;
238 static int nb_frames_dup = 0;
239 static int nb_frames_drop = 0;
240 static int input_sync;
241 static uint64_t limit_filesize = 0;
242 static int force_fps = 0;
243 static char *forced_key_frames = NULL;
244
245 static float dts_delta_threshold = 10;
246
247 static int64_t timer_start;
248
249 static uint8_t *audio_buf;
250 static uint8_t *audio_out;
251 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
252
253 static short *samples;
254
255 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
256 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
257 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
258
259 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
260
261 struct InputStream;
262
263 typedef struct OutputStream {
264     int file_index;          /* file index */
265     int index;               /* stream index in the output file */
266     int source_index;        /* InputStream index */
267     AVStream *st;            /* stream in the output file */
268     int encoding_needed;     /* true if encoding needed for this stream */
269     int frame_number;
270     /* input pts and corresponding output pts
271        for A/V sync */
272     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
273     struct InputStream *sync_ist; /* input stream to sync against */
274     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
275     AVBitStreamFilterContext *bitstream_filters;
276     AVCodec *enc;
277
278     /* video only */
279     int video_resample;
280     AVFrame resample_frame;              /* temporary frame for image resampling */
281     struct SwsContext *img_resample_ctx; /* for image resampling */
282     int resample_height;
283     int resample_width;
284     int resample_pix_fmt;
285     AVRational frame_rate;
286
287     float frame_aspect_ratio;
288
289     /* forced key frames */
290     int64_t *forced_kf_pts;
291     int forced_kf_count;
292     int forced_kf_index;
293
294     /* audio only */
295     int audio_resample;
296     ReSampleContext *resample; /* for audio resampling */
297     int resample_sample_fmt;
298     int resample_channels;
299     int resample_sample_rate;
300     int reformat_pair;
301     AVAudioConvert *reformat_ctx;
302     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
303     FILE *logfile;
304
305 #if CONFIG_AVFILTER
306     AVFilterContext *output_video_filter;
307     AVFilterContext *input_video_filter;
308     AVFilterBufferRef *picref;
309     char *avfilter;
310     AVFilterGraph *graph;
311 #endif
312
313    int sws_flags;
314 } OutputStream;
315
316 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
317 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
318
319 typedef struct InputStream {
320     int file_index;
321     AVStream *st;
322     int discard;             /* true if stream data should be discarded */
323     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
324     AVCodec *dec;
325
326     int64_t       start;     /* time when read started */
327     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
328                                 is not defined */
329     int64_t       pts;       /* current pts */
330     int is_start;            /* is 1 at the start and after a discontinuity */
331     int showed_multi_packet_warning;
332     int is_past_recording_time;
333 } InputStream;
334
335 typedef struct InputFile {
336     AVFormatContext *ctx;
337     int eof_reached;      /* true if eof reached */
338     int ist_index;        /* index of first stream in ist_table */
339     int buffer_size;      /* current total buffer size */
340     int64_t ts_offset;
341 } InputFile;
342
343 #if HAVE_TERMIOS_H
344
345 /* init terminal so that we can grab keys */
346 static struct termios oldtty;
347 #endif
348
349 static InputStream *input_streams = NULL;
350 static int         nb_input_streams = 0;
351 static InputFile   *input_files   = NULL;
352 static int         nb_input_files   = 0;
353
354 #if CONFIG_AVFILTER
355
356 static int configure_video_filters(InputStream *ist, OutputStream *ost)
357 {
358     AVFilterContext *last_filter, *filter;
359     /** filter graph containing all filters including input & output */
360     AVCodecContext *codec = ost->st->codec;
361     AVCodecContext *icodec = ist->st->codec;
362     enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE };
363     AVRational sample_aspect_ratio;
364     char args[255];
365     int ret;
366
367     ost->graph = avfilter_graph_alloc();
368
369     if (ist->st->sample_aspect_ratio.num){
370         sample_aspect_ratio = ist->st->sample_aspect_ratio;
371     }else
372         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
373
374     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
375              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
376              sample_aspect_ratio.num, sample_aspect_ratio.den);
377
378     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
379                                        "src", args, NULL, ost->graph);
380     if (ret < 0)
381         return ret;
382     ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
383                                        "out", NULL, pix_fmts, ost->graph);
384     if (ret < 0)
385         return ret;
386     last_filter = ost->input_video_filter;
387
388     if (codec->width  != icodec->width || codec->height != icodec->height) {
389         snprintf(args, 255, "%d:%d:flags=0x%X",
390                  codec->width,
391                  codec->height,
392                  ost->sws_flags);
393         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
394                                                 NULL, args, NULL, ost->graph)) < 0)
395             return ret;
396         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
397             return ret;
398         last_filter = filter;
399     }
400
401     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
402     ost->graph->scale_sws_opts = av_strdup(args);
403
404     if (ost->avfilter) {
405         AVFilterInOut *outputs = avfilter_inout_alloc();
406         AVFilterInOut *inputs  = avfilter_inout_alloc();
407
408         outputs->name    = av_strdup("in");
409         outputs->filter_ctx = last_filter;
410         outputs->pad_idx = 0;
411         outputs->next    = NULL;
412
413         inputs->name    = av_strdup("out");
414         inputs->filter_ctx = ost->output_video_filter;
415         inputs->pad_idx = 0;
416         inputs->next    = NULL;
417
418         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0)
419             return ret;
420         av_freep(&ost->avfilter);
421     } else {
422         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
423             return ret;
424     }
425
426     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
427         return ret;
428
429     codec->width  = ost->output_video_filter->inputs[0]->w;
430     codec->height = ost->output_video_filter->inputs[0]->h;
431     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
432         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
433         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
434         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
435
436     return 0;
437 }
438 #endif /* CONFIG_AVFILTER */
439
440 static void term_exit(void)
441 {
442     av_log(NULL, AV_LOG_QUIET, "%s", "");
443 #if HAVE_TERMIOS_H
444     if(!run_as_daemon)
445         tcsetattr (0, TCSANOW, &oldtty);
446 #endif
447 }
448
449 static volatile int received_sigterm = 0;
450
451 static void
452 sigterm_handler(int sig)
453 {
454     received_sigterm = sig;
455     q_pressed++;
456     term_exit();
457 }
458
459 static void term_init(void)
460 {
461 #if HAVE_TERMIOS_H
462     if(!run_as_daemon){
463     struct termios tty;
464
465     tcgetattr (0, &tty);
466     oldtty = tty;
467     atexit(term_exit);
468
469     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
470                           |INLCR|IGNCR|ICRNL|IXON);
471     tty.c_oflag |= OPOST;
472     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
473     tty.c_cflag &= ~(CSIZE|PARENB);
474     tty.c_cflag |= CS8;
475     tty.c_cc[VMIN] = 1;
476     tty.c_cc[VTIME] = 0;
477
478     tcsetattr (0, TCSANOW, &tty);
479     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
480     }
481 #endif
482
483     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
484     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
485 #ifdef SIGXCPU
486     signal(SIGXCPU, sigterm_handler);
487 #endif
488 }
489
490 /* read a key without blocking */
491 static int read_key(void)
492 {
493 #if HAVE_TERMIOS_H
494     int n = 1;
495     unsigned char ch;
496     struct timeval tv;
497     fd_set rfds;
498
499     if(run_as_daemon)
500         return -1;
501
502     FD_ZERO(&rfds);
503     FD_SET(0, &rfds);
504     tv.tv_sec = 0;
505     tv.tv_usec = 0;
506     n = select(1, &rfds, NULL, NULL, &tv);
507     if (n > 0) {
508         n = read(0, &ch, 1);
509         if (n == 1)
510             return ch;
511
512         return n;
513     }
514 #elif HAVE_KBHIT
515     if(kbhit())
516         return(getch());
517 #endif
518     return -1;
519 }
520
521 static int decode_interrupt_cb(void)
522 {
523     q_pressed += read_key() == 'q';
524     return q_pressed > 1;
525 }
526
527 static int ffmpeg_exit(int ret)
528 {
529     int i;
530
531     /* close files */
532     for(i=0;i<nb_output_files;i++) {
533         AVFormatContext *s = output_files[i];
534         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
535             avio_close(s->pb);
536         avformat_free_context(s);
537         av_free(output_streams_for_file[i]);
538     }
539     for(i=0;i<nb_input_files;i++) {
540         av_close_input_file(input_files[i].ctx);
541         av_free(input_files_ts_scale[i]);
542     }
543
544     av_free(intra_matrix);
545     av_free(inter_matrix);
546
547     if (vstats_file)
548         fclose(vstats_file);
549     av_free(vstats_filename);
550
551     av_free(streamid_map);
552     av_free(stream_maps);
553     av_free(meta_data_maps);
554
555     av_freep(&input_streams);
556     av_freep(&input_files);
557
558     av_free(video_codec_name);
559     av_free(audio_codec_name);
560     av_free(subtitle_codec_name);
561     av_free(data_codec_name);
562
563     av_free(video_standard);
564
565     uninit_opts();
566     av_free(audio_buf);
567     av_free(audio_out);
568     allocated_audio_buf_size= allocated_audio_out_size= 0;
569     av_free(samples);
570
571 #if CONFIG_AVFILTER
572     avfilter_uninit();
573 #endif
574
575     if (received_sigterm) {
576         fprintf(stderr,
577             "Received signal %d: terminating.\n",
578             (int) received_sigterm);
579         exit (255);
580     }
581
582     exit(ret); /* not all OS-es handle main() return value */
583     return ret;
584 }
585
586 /* similar to ff_dynarray_add() and av_fast_realloc() */
587 static void *grow_array(void *array, int elem_size, int *size, int new_size)
588 {
589     if (new_size >= INT_MAX / elem_size) {
590         fprintf(stderr, "Array too big.\n");
591         ffmpeg_exit(1);
592     }
593     if (*size < new_size) {
594         uint8_t *tmp = av_realloc(array, new_size*elem_size);
595         if (!tmp) {
596             fprintf(stderr, "Could not alloc buffer.\n");
597             ffmpeg_exit(1);
598         }
599         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
600         *size = new_size;
601         return tmp;
602     }
603     return array;
604 }
605
606 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
607 {
608     if(codec && codec->sample_fmts){
609         const enum AVSampleFormat *p= codec->sample_fmts;
610         for(; *p!=-1; p++){
611             if(*p == st->codec->sample_fmt)
612                 break;
613         }
614         if (*p == -1) {
615             if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
616                 av_log(NULL, AV_LOG_ERROR, "Convertion will not be lossless'\n");
617             av_log(NULL, AV_LOG_WARNING,
618                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
619                    av_get_sample_fmt_name(st->codec->sample_fmt),
620                    codec->name,
621                    av_get_sample_fmt_name(codec->sample_fmts[0]));
622             st->codec->sample_fmt = codec->sample_fmts[0];
623         }
624     }
625 }
626
627 static void choose_sample_rate(AVStream *st, AVCodec *codec)
628 {
629     if(codec && codec->supported_samplerates){
630         const int *p= codec->supported_samplerates;
631         int best=0;
632         int best_dist=INT_MAX;
633         for(; *p; p++){
634             int dist= abs(st->codec->sample_rate - *p);
635             if(dist < best_dist){
636                 best_dist= dist;
637                 best= *p;
638             }
639         }
640         if(best_dist){
641             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
642         }
643         st->codec->sample_rate= best;
644     }
645 }
646
647 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
648 {
649     if(codec && codec->pix_fmts){
650         const enum PixelFormat *p= codec->pix_fmts;
651         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
652             if(st->codec->codec_id==CODEC_ID_MJPEG){
653                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
654             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
655                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE};
656             }
657         }
658         for(; *p!=-1; p++){
659             if(*p == st->codec->pix_fmt)
660                 break;
661         }
662         if (*p == -1) {
663             if(st->codec->pix_fmt != PIX_FMT_NONE)
664                 av_log(NULL, AV_LOG_WARNING,
665                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
666                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
667                         codec->name,
668                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
669             st->codec->pix_fmt = codec->pix_fmts[0];
670         }
671     }
672 }
673
674 static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
675 {
676     int idx = oc->nb_streams - 1;
677     OutputStream *ost;
678
679     output_streams_for_file[file_idx] =
680         grow_array(output_streams_for_file[file_idx],
681                    sizeof(*output_streams_for_file[file_idx]),
682                    &nb_output_streams_for_file[file_idx],
683                    oc->nb_streams);
684     ost = output_streams_for_file[file_idx][idx] =
685         av_mallocz(sizeof(OutputStream));
686     if (!ost) {
687         fprintf(stderr, "Could not alloc output stream\n");
688         ffmpeg_exit(1);
689     }
690     ost->file_index = file_idx;
691     ost->index = idx;
692
693     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
694     return ost;
695 }
696
697 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
698 {
699     int i, err;
700     AVFormatContext *ic;
701     int nopts = 0;
702
703     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
704     if (err < 0)
705         return err;
706     /* copy stream format */
707     s->nb_streams = 0;
708     s->streams = av_mallocz(sizeof(AVStream *) * ic->nb_streams);
709     for(i=0;i<ic->nb_streams;i++) {
710         AVStream *st;
711         AVCodec *codec;
712
713         s->nb_streams++;
714
715         // FIXME: a more elegant solution is needed
716         st = av_mallocz(sizeof(AVStream));
717         memcpy(st, ic->streams[i], sizeof(AVStream));
718         st->info = av_malloc(sizeof(*st->info));
719         memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
720         st->codec = avcodec_alloc_context();
721         if (!st->codec) {
722             print_error(filename, AVERROR(ENOMEM));
723             ffmpeg_exit(1);
724         }
725         avcodec_copy_context(st->codec, ic->streams[i]->codec);
726         s->streams[i] = st;
727
728         codec = avcodec_find_encoder(st->codec->codec_id);
729         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
730             if (audio_stream_copy) {
731                 st->stream_copy = 1;
732             } else
733                 choose_sample_fmt(st, codec);
734         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
735             if (video_stream_copy) {
736                 st->stream_copy = 1;
737             } else
738                 choose_pixel_fmt(st, codec);
739         }
740
741         if(st->codec->flags & CODEC_FLAG_BITEXACT)
742             nopts = 1;
743
744         new_output_stream(s, nb_output_files);
745     }
746
747     if (!nopts)
748         s->timestamp = av_gettime();
749
750     av_close_input_file(ic);
751     return 0;
752 }
753
754 static double
755 get_sync_ipts(const OutputStream *ost)
756 {
757     const InputStream *ist = ost->sync_ist;
758     return (double)(ist->pts - start_time)/AV_TIME_BASE;
759 }
760
761 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
762     int ret;
763
764     while(bsfc){
765         AVPacket new_pkt= *pkt;
766         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
767                                           &new_pkt.data, &new_pkt.size,
768                                           pkt->data, pkt->size,
769                                           pkt->flags & AV_PKT_FLAG_KEY);
770         if(a>0){
771             av_free_packet(pkt);
772             new_pkt.destruct= av_destruct_packet;
773         } else if(a<0){
774             fprintf(stderr, "%s failed for stream %d, codec %s",
775                     bsfc->filter->name, pkt->stream_index,
776                     avctx->codec ? avctx->codec->name : "copy");
777             print_error("", a);
778             if (exit_on_error)
779                 ffmpeg_exit(1);
780         }
781         *pkt= new_pkt;
782
783         bsfc= bsfc->next;
784     }
785
786     ret= av_interleaved_write_frame(s, pkt);
787     if(ret < 0){
788         print_error("av_interleaved_write_frame()", ret);
789         ffmpeg_exit(1);
790     }
791 }
792
793 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
794
795 static void do_audio_out(AVFormatContext *s,
796                          OutputStream *ost,
797                          InputStream *ist,
798                          unsigned char *buf, int size)
799 {
800     uint8_t *buftmp;
801     int64_t audio_out_size, audio_buf_size;
802     int64_t allocated_for_size= size;
803
804     int size_out, frame_bytes, ret, resample_changed;
805     AVCodecContext *enc= ost->st->codec;
806     AVCodecContext *dec= ist->st->codec;
807     int osize = av_get_bytes_per_sample(enc->sample_fmt);
808     int isize = av_get_bytes_per_sample(dec->sample_fmt);
809     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
810
811 need_realloc:
812     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
813     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
814     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
815     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
816     audio_buf_size*= osize*enc->channels;
817
818     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
819     if(coded_bps > 8*osize)
820         audio_out_size= audio_out_size * coded_bps / (8*osize);
821     audio_out_size += FF_MIN_BUFFER_SIZE;
822
823     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
824         fprintf(stderr, "Buffer sizes too large\n");
825         ffmpeg_exit(1);
826     }
827
828     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
829     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
830     if (!audio_buf || !audio_out){
831         fprintf(stderr, "Out of memory in do_audio_out\n");
832         ffmpeg_exit(1);
833     }
834
835     if (enc->channels != dec->channels)
836         ost->audio_resample = 1;
837
838     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
839                        ost->resample_channels    != dec->channels   ||
840                        ost->resample_sample_rate != dec->sample_rate;
841
842     if ((ost->audio_resample && !ost->resample) || resample_changed) {
843         if (resample_changed) {
844             av_log(NULL, AV_LOG_INFO, "Input stream #%d.%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
845                    ist->file_index, ist->st->index,
846                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
847                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
848             ost->resample_sample_fmt  = dec->sample_fmt;
849             ost->resample_channels    = dec->channels;
850             ost->resample_sample_rate = dec->sample_rate;
851             if (ost->resample)
852                 audio_resample_close(ost->resample);
853         }
854         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
855         if (audio_sync_method <= 1 &&
856             ost->resample_sample_fmt  == enc->sample_fmt &&
857             ost->resample_channels    == enc->channels   &&
858             ost->resample_sample_rate == enc->sample_rate) {
859             ost->resample = NULL;
860             ost->audio_resample = 0;
861         } else {
862             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
863                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
864             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
865                                                    enc->sample_rate, dec->sample_rate,
866                                                    enc->sample_fmt,  dec->sample_fmt,
867                                                    16, 10, 0, 0.8);
868             if (!ost->resample) {
869                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
870                         dec->channels, dec->sample_rate,
871                         enc->channels, enc->sample_rate);
872                 ffmpeg_exit(1);
873             }
874         }
875     }
876
877 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
878     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
879         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
880         if (ost->reformat_ctx)
881             av_audio_convert_free(ost->reformat_ctx);
882         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
883                                                    dec->sample_fmt, 1, NULL, 0);
884         if (!ost->reformat_ctx) {
885             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
886                 av_get_sample_fmt_name(dec->sample_fmt),
887                 av_get_sample_fmt_name(enc->sample_fmt));
888             ffmpeg_exit(1);
889         }
890         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
891     }
892
893     if(audio_sync_method){
894         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
895                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
896         double idelta= delta*dec->sample_rate / enc->sample_rate;
897         int byte_delta= ((int)idelta)*2*dec->channels;
898
899         //FIXME resample delay
900         if(fabs(delta) > 50){
901             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
902                 if(byte_delta < 0){
903                     byte_delta= FFMAX(byte_delta, -size);
904                     size += byte_delta;
905                     buf  -= byte_delta;
906                     if(verbose > 2)
907                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
908                     if(!size)
909                         return;
910                     ist->is_start=0;
911                 }else{
912                     static uint8_t *input_tmp= NULL;
913                     input_tmp= av_realloc(input_tmp, byte_delta + size);
914
915                     if(byte_delta > allocated_for_size - size){
916                         allocated_for_size= byte_delta + (int64_t)size;
917                         goto need_realloc;
918                     }
919                     ist->is_start=0;
920
921                     memset(input_tmp, 0, byte_delta);
922                     memcpy(input_tmp + byte_delta, buf, size);
923                     buf= input_tmp;
924                     size += byte_delta;
925                     if(verbose > 2)
926                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
927                 }
928             }else if(audio_sync_method>1){
929                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
930                 av_assert0(ost->audio_resample);
931                 if(verbose > 2)
932                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
933 //                fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
934                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
935             }
936         }
937     }else
938         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
939                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
940
941     if (ost->audio_resample) {
942         buftmp = audio_buf;
943         size_out = audio_resample(ost->resample,
944                                   (short *)buftmp, (short *)buf,
945                                   size / (dec->channels * isize));
946         size_out = size_out * enc->channels * osize;
947     } else {
948         buftmp = buf;
949         size_out = size;
950     }
951
952     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
953         const void *ibuf[6]= {buftmp};
954         void *obuf[6]= {audio_buf};
955         int istride[6]= {isize};
956         int ostride[6]= {osize};
957         int len= size_out/istride[0];
958         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
959             printf("av_audio_convert() failed\n");
960             if (exit_on_error)
961                 ffmpeg_exit(1);
962             return;
963         }
964         buftmp = audio_buf;
965         size_out = len*osize;
966     }
967
968     /* now encode as many frames as possible */
969     if (enc->frame_size > 1) {
970         /* output resampled raw samples */
971         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
972             fprintf(stderr, "av_fifo_realloc2() failed\n");
973             ffmpeg_exit(1);
974         }
975         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
976
977         frame_bytes = enc->frame_size * osize * enc->channels;
978
979         while (av_fifo_size(ost->fifo) >= frame_bytes) {
980             AVPacket pkt;
981             av_init_packet(&pkt);
982
983             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
984
985             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
986
987             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
988                                        (short *)audio_buf);
989             if (ret < 0) {
990                 fprintf(stderr, "Audio encoding failed\n");
991                 ffmpeg_exit(1);
992             }
993             audio_size += ret;
994             pkt.stream_index= ost->index;
995             pkt.data= audio_out;
996             pkt.size= ret;
997             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
998                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
999             pkt.flags |= AV_PKT_FLAG_KEY;
1000             write_frame(s, &pkt, enc, ost->bitstream_filters);
1001
1002             ost->sync_opts += enc->frame_size;
1003         }
1004     } else {
1005         AVPacket pkt;
1006         av_init_packet(&pkt);
1007
1008         ost->sync_opts += size_out / (osize * enc->channels);
1009
1010         /* output a pcm frame */
1011         /* determine the size of the coded buffer */
1012         size_out /= osize;
1013         if (coded_bps)
1014             size_out = size_out*coded_bps/8;
1015
1016         if(size_out > audio_out_size){
1017             fprintf(stderr, "Internal error, buffer size too small\n");
1018             ffmpeg_exit(1);
1019         }
1020
1021         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1022         ret = avcodec_encode_audio(enc, audio_out, size_out,
1023                                    (short *)buftmp);
1024         if (ret < 0) {
1025             fprintf(stderr, "Audio encoding failed\n");
1026             ffmpeg_exit(1);
1027         }
1028         audio_size += ret;
1029         pkt.stream_index= ost->index;
1030         pkt.data= audio_out;
1031         pkt.size= ret;
1032         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1033             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1034         pkt.flags |= AV_PKT_FLAG_KEY;
1035         write_frame(s, &pkt, enc, ost->bitstream_filters);
1036     }
1037 }
1038
1039 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1040 {
1041     AVCodecContext *dec;
1042     AVPicture *picture2;
1043     AVPicture picture_tmp;
1044     uint8_t *buf = 0;
1045
1046     dec = ist->st->codec;
1047
1048     /* deinterlace : must be done before any resize */
1049     if (do_deinterlace) {
1050         int size;
1051
1052         /* create temporary picture */
1053         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1054         buf = av_malloc(size);
1055         if (!buf)
1056             return;
1057
1058         picture2 = &picture_tmp;
1059         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1060
1061         if(avpicture_deinterlace(picture2, picture,
1062                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1063             /* if error, do not deinterlace */
1064             fprintf(stderr, "Deinterlacing failed\n");
1065             av_free(buf);
1066             buf = NULL;
1067             picture2 = picture;
1068         }
1069     } else {
1070         picture2 = picture;
1071     }
1072
1073     if (picture != picture2)
1074         *picture = *picture2;
1075     *bufp = buf;
1076 }
1077
1078 /* we begin to correct av delay at this threshold */
1079 #define AV_DELAY_MAX 0.100
1080
1081 static void do_subtitle_out(AVFormatContext *s,
1082                             OutputStream *ost,
1083                             InputStream *ist,
1084                             AVSubtitle *sub,
1085                             int64_t pts)
1086 {
1087     static uint8_t *subtitle_out = NULL;
1088     int subtitle_out_max_size = 1024 * 1024;
1089     int subtitle_out_size, nb, i;
1090     AVCodecContext *enc;
1091     AVPacket pkt;
1092
1093     if (pts == AV_NOPTS_VALUE) {
1094         fprintf(stderr, "Subtitle packets must have a pts\n");
1095         if (exit_on_error)
1096             ffmpeg_exit(1);
1097         return;
1098     }
1099
1100     enc = ost->st->codec;
1101
1102     if (!subtitle_out) {
1103         subtitle_out = av_malloc(subtitle_out_max_size);
1104     }
1105
1106     /* Note: DVB subtitle need one packet to draw them and one other
1107        packet to clear them */
1108     /* XXX: signal it in the codec context ? */
1109     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1110         nb = 2;
1111     else
1112         nb = 1;
1113
1114     for(i = 0; i < nb; i++) {
1115         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1116         // start_display_time is required to be 0
1117         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1118         sub->end_display_time -= sub->start_display_time;
1119         sub->start_display_time = 0;
1120         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1121                                                     subtitle_out_max_size, sub);
1122         if (subtitle_out_size < 0) {
1123             fprintf(stderr, "Subtitle encoding failed\n");
1124             ffmpeg_exit(1);
1125         }
1126
1127         av_init_packet(&pkt);
1128         pkt.stream_index = ost->index;
1129         pkt.data = subtitle_out;
1130         pkt.size = subtitle_out_size;
1131         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1132         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1133             /* XXX: the pts correction is handled here. Maybe handling
1134                it in the codec would be better */
1135             if (i == 0)
1136                 pkt.pts += 90 * sub->start_display_time;
1137             else
1138                 pkt.pts += 90 * sub->end_display_time;
1139         }
1140         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1141     }
1142 }
1143
1144 static int bit_buffer_size= 1024*256;
1145 static uint8_t *bit_buffer= NULL;
1146
1147 static void do_video_out(AVFormatContext *s,
1148                          OutputStream *ost,
1149                          InputStream *ist,
1150                          AVFrame *in_picture,
1151                          int *frame_size, float quality)
1152 {
1153     int nb_frames, i, ret, av_unused resample_changed;
1154     AVFrame *final_picture, *formatted_picture;
1155     AVCodecContext *enc, *dec;
1156     double sync_ipts;
1157
1158     enc = ost->st->codec;
1159     dec = ist->st->codec;
1160
1161     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1162
1163     /* by default, we output a single frame */
1164     nb_frames = 1;
1165
1166     *frame_size = 0;
1167
1168     if(video_sync_method){
1169         double vdelta = sync_ipts - ost->sync_opts;
1170         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1171         if (vdelta < -1.1)
1172             nb_frames = 0;
1173         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1174             if(vdelta<=-0.6){
1175                 nb_frames=0;
1176             }else if(vdelta>0.6)
1177                 ost->sync_opts= lrintf(sync_ipts);
1178         }else if (vdelta > 1.1)
1179             nb_frames = lrintf(vdelta);
1180 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
1181         if (nb_frames == 0){
1182             ++nb_frames_drop;
1183             if (verbose>2)
1184                 fprintf(stderr, "*** drop!\n");
1185         }else if (nb_frames > 1) {
1186             nb_frames_dup += nb_frames - 1;
1187             if (verbose>2)
1188                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1189         }
1190     }else
1191         ost->sync_opts= lrintf(sync_ipts);
1192
1193     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1194     if (nb_frames <= 0)
1195         return;
1196
1197     formatted_picture = in_picture;
1198     final_picture = formatted_picture;
1199
1200 #if !CONFIG_AVFILTER
1201     resample_changed = ost->resample_width   != dec->width  ||
1202                        ost->resample_height  != dec->height ||
1203                        ost->resample_pix_fmt != dec->pix_fmt;
1204
1205     if (resample_changed) {
1206         av_log(NULL, AV_LOG_INFO,
1207                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1208                ist->file_index, ist->st->index,
1209                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1210                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1211         ost->resample_width   = dec->width;
1212         ost->resample_height  = dec->height;
1213         ost->resample_pix_fmt = dec->pix_fmt;
1214     }
1215
1216     ost->video_resample = dec->width   != enc->width  ||
1217                           dec->height  != enc->height ||
1218                           dec->pix_fmt != enc->pix_fmt;
1219
1220     if (ost->video_resample) {
1221         final_picture = &ost->resample_frame;
1222         if (!ost->img_resample_ctx || resample_changed) {
1223             /* initialize the destination picture */
1224             if (!ost->resample_frame.data[0]) {
1225                 avcodec_get_frame_defaults(&ost->resample_frame);
1226                 if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
1227                                     enc->width, enc->height)) {
1228                     fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1229                     ffmpeg_exit(1);
1230                 }
1231             }
1232             /* initialize a new scaler context */
1233             sws_freeContext(ost->img_resample_ctx);
1234             ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt,
1235                                                    enc->width, enc->height, enc->pix_fmt,
1236                                                    ost->sws_flags, NULL, NULL, NULL);
1237             if (ost->img_resample_ctx == NULL) {
1238                 fprintf(stderr, "Cannot get resampling context\n");
1239                 ffmpeg_exit(1);
1240             }
1241         }
1242         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1243               0, ost->resample_height, final_picture->data, final_picture->linesize);
1244     }
1245 #endif
1246
1247     /* duplicates frame if needed */
1248     for(i=0;i<nb_frames;i++) {
1249         AVPacket pkt;
1250         av_init_packet(&pkt);
1251         pkt.stream_index= ost->index;
1252
1253         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1254             /* raw pictures are written as AVPicture structure to
1255                avoid any copies. We support temorarily the older
1256                method. */
1257             AVFrame* old_frame = enc->coded_frame;
1258             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1259             pkt.data= (uint8_t *)final_picture;
1260             pkt.size=  sizeof(AVPicture);
1261             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1262             pkt.flags |= AV_PKT_FLAG_KEY;
1263
1264             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1265             enc->coded_frame = old_frame;
1266         } else {
1267             AVFrame big_picture;
1268
1269             big_picture= *final_picture;
1270             /* better than nothing: use input picture interlaced
1271                settings */
1272             big_picture.interlaced_frame = in_picture->interlaced_frame;
1273             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1274                 if(top_field_first == -1)
1275                     big_picture.top_field_first = in_picture->top_field_first;
1276                 else
1277                     big_picture.top_field_first = top_field_first;
1278             }
1279
1280             /* handles sameq here. This is not correct because it may
1281                not be a global option */
1282             big_picture.quality = quality;
1283             if(!me_threshold)
1284                 big_picture.pict_type = 0;
1285 //            big_picture.pts = AV_NOPTS_VALUE;
1286             big_picture.pts= ost->sync_opts;
1287 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1288 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1289             if (ost->forced_kf_index < ost->forced_kf_count &&
1290                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1291                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1292                 ost->forced_kf_index++;
1293             }
1294             ret = avcodec_encode_video(enc,
1295                                        bit_buffer, bit_buffer_size,
1296                                        &big_picture);
1297             if (ret < 0) {
1298                 fprintf(stderr, "Video encoding failed\n");
1299                 ffmpeg_exit(1);
1300             }
1301
1302             if(ret>0){
1303                 pkt.data= bit_buffer;
1304                 pkt.size= ret;
1305                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1306                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1307 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1308    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1309    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1310
1311                 if(enc->coded_frame->key_frame)
1312                     pkt.flags |= AV_PKT_FLAG_KEY;
1313                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1314                 *frame_size = ret;
1315                 video_size += ret;
1316                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1317                 //        enc->frame_number-1, ret, enc->pict_type);
1318                 /* if two pass, output log */
1319                 if (ost->logfile && enc->stats_out) {
1320                     fprintf(ost->logfile, "%s", enc->stats_out);
1321                 }
1322             }
1323         }
1324         ost->sync_opts++;
1325         ost->frame_number++;
1326     }
1327 }
1328
1329 static double psnr(double d){
1330     return -10.0*log(d)/log(10.0);
1331 }
1332
1333 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1334                            int frame_size)
1335 {
1336     AVCodecContext *enc;
1337     int frame_number;
1338     double ti1, bitrate, avg_bitrate;
1339
1340     /* this is executed just the first time do_video_stats is called */
1341     if (!vstats_file) {
1342         vstats_file = fopen(vstats_filename, "w");
1343         if (!vstats_file) {
1344             perror("fopen");
1345             ffmpeg_exit(1);
1346         }
1347     }
1348
1349     enc = ost->st->codec;
1350     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1351         frame_number = ost->frame_number;
1352         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1353         if (enc->flags&CODEC_FLAG_PSNR)
1354             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1355
1356         fprintf(vstats_file,"f_size= %6d ", frame_size);
1357         /* compute pts value */
1358         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1359         if (ti1 < 0.01)
1360             ti1 = 0.01;
1361
1362         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1363         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1364         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1365             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1366         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1367     }
1368 }
1369
1370 static void print_report(AVFormatContext **output_files,
1371                          OutputStream **ost_table, int nb_ostreams,
1372                          int is_last_report)
1373 {
1374     char buf[1024];
1375     OutputStream *ost;
1376     AVFormatContext *oc;
1377     int64_t total_size;
1378     AVCodecContext *enc;
1379     int frame_number, vid, i;
1380     double bitrate;
1381     int64_t pts = INT64_MAX;
1382     static int64_t last_time = -1;
1383     static int qp_histogram[52];
1384
1385     if (!is_last_report) {
1386         int64_t cur_time;
1387         /* display the report every 0.5 seconds */
1388         cur_time = av_gettime();
1389         if (last_time == -1) {
1390             last_time = cur_time;
1391             return;
1392         }
1393         if ((cur_time - last_time) < 500000)
1394             return;
1395         last_time = cur_time;
1396     }
1397
1398
1399     oc = output_files[0];
1400
1401     total_size = avio_size(oc->pb);
1402     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1403         total_size= avio_tell(oc->pb);
1404
1405     buf[0] = '\0';
1406     vid = 0;
1407     for(i=0;i<nb_ostreams;i++) {
1408         float q = -1;
1409         ost = ost_table[i];
1410         enc = ost->st->codec;
1411         if (!ost->st->stream_copy && enc->coded_frame)
1412             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1413         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1414             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1415         }
1416         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1417             float t = (av_gettime()-timer_start) / 1000000.0;
1418
1419             frame_number = ost->frame_number;
1420             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1421                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1422             if(is_last_report)
1423                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1424             if(qp_hist){
1425                 int j;
1426                 int qp = lrintf(q);
1427                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1428                     qp_histogram[qp]++;
1429                 for(j=0; j<32; j++)
1430                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1431             }
1432             if (enc->flags&CODEC_FLAG_PSNR){
1433                 int j;
1434                 double error, error_sum=0;
1435                 double scale, scale_sum=0;
1436                 char type[3]= {'Y','U','V'};
1437                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1438                 for(j=0; j<3; j++){
1439                     if(is_last_report){
1440                         error= enc->error[j];
1441                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1442                     }else{
1443                         error= enc->coded_frame->error[j];
1444                         scale= enc->width*enc->height*255.0*255.0;
1445                     }
1446                     if(j) scale/=4;
1447                     error_sum += error;
1448                     scale_sum += scale;
1449                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1450                 }
1451                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1452             }
1453             vid = 1;
1454         }
1455         /* compute min output value */
1456         pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
1457                                       ost->st->time_base, AV_TIME_BASE_Q));
1458     }
1459
1460     if (verbose > 0 || is_last_report) {
1461         int hours, mins, secs, us;
1462         secs = pts / AV_TIME_BASE;
1463         us = pts % AV_TIME_BASE;
1464         mins = secs / 60;
1465         secs %= 60;
1466         hours = mins / 60;
1467         mins %= 60;
1468
1469         bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1470
1471         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1472                  "size=%8.0fkB time=", total_size / 1024.0);
1473         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1474                  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1475                  (100 * us) / AV_TIME_BASE);
1476         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1477                  "bitrate=%6.1fkbits/s", bitrate);
1478
1479         if (nb_frames_dup || nb_frames_drop)
1480           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1481                   nb_frames_dup, nb_frames_drop);
1482
1483         if (verbose >= 0)
1484             fprintf(stderr, "%s    \r", buf);
1485
1486         fflush(stderr);
1487     }
1488
1489     if (is_last_report && verbose >= 0){
1490         int64_t raw= audio_size + video_size + extra_size;
1491         fprintf(stderr, "\n");
1492         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1493                 video_size/1024.0,
1494                 audio_size/1024.0,
1495                 extra_size/1024.0,
1496                 100.0*(total_size - raw)/raw
1497         );
1498     }
1499 }
1500
1501 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1502 {
1503     int fill_char = 0x00;
1504     if (sample_fmt == AV_SAMPLE_FMT_U8)
1505         fill_char = 0x80;
1506     memset(buf, fill_char, size);
1507 }
1508
1509 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1510 static int output_packet(InputStream *ist, int ist_index,
1511                          OutputStream **ost_table, int nb_ostreams,
1512                          const AVPacket *pkt)
1513 {
1514     AVFormatContext *os;
1515     OutputStream *ost;
1516     int ret, i;
1517     int got_output;
1518     AVFrame picture;
1519     void *buffer_to_free = NULL;
1520     static unsigned int samples_size= 0;
1521     AVSubtitle subtitle, *subtitle_to_free;
1522     int64_t pkt_pts = AV_NOPTS_VALUE;
1523 #if CONFIG_AVFILTER
1524     int frame_available;
1525 #endif
1526     float quality;
1527
1528     AVPacket avpkt;
1529     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1530
1531     if(ist->next_pts == AV_NOPTS_VALUE)
1532         ist->next_pts= ist->pts;
1533
1534     if (pkt == NULL) {
1535         /* EOF handling */
1536         av_init_packet(&avpkt);
1537         avpkt.data = NULL;
1538         avpkt.size = 0;
1539         goto handle_eof;
1540     } else {
1541         avpkt = *pkt;
1542     }
1543
1544     if(pkt->dts != AV_NOPTS_VALUE)
1545         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1546     if(pkt->pts != AV_NOPTS_VALUE)
1547         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1548
1549     //while we have more to decode or while the decoder did output something on EOF
1550     while (avpkt.size > 0 || (!pkt && got_output)) {
1551         uint8_t *data_buf, *decoded_data_buf;
1552         int data_size, decoded_data_size;
1553     handle_eof:
1554         ist->pts= ist->next_pts;
1555
1556         if(avpkt.size && avpkt.size != pkt->size &&
1557            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1558             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1559             ist->showed_multi_packet_warning=1;
1560         }
1561
1562         /* decode the packet if needed */
1563         decoded_data_buf = NULL; /* fail safe */
1564         decoded_data_size= 0;
1565         data_buf  = avpkt.data;
1566         data_size = avpkt.size;
1567         subtitle_to_free = NULL;
1568         if (ist->decoding_needed) {
1569             switch(ist->st->codec->codec_type) {
1570             case AVMEDIA_TYPE_AUDIO:{
1571                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1572                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1573                     av_free(samples);
1574                     samples= av_malloc(samples_size);
1575                 }
1576                 decoded_data_size= samples_size;
1577                     /* XXX: could avoid copy if PCM 16 bits with same
1578                        endianness as CPU */
1579                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1580                                             &avpkt);
1581                 if (ret < 0)
1582                     goto fail_decode;
1583                 avpkt.data += ret;
1584                 avpkt.size -= ret;
1585                 data_size   = ret;
1586                 got_output  = decoded_data_size > 0;
1587                 /* Some bug in mpeg audio decoder gives */
1588                 /* decoded_data_size < 0, it seems they are overflows */
1589                 if (!got_output) {
1590                     /* no audio frame */
1591                     continue;
1592                 }
1593                 decoded_data_buf = (uint8_t *)samples;
1594                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1595                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1596                 break;}
1597             case AVMEDIA_TYPE_VIDEO:
1598                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1599                     /* XXX: allocate picture correctly */
1600                     avcodec_get_frame_defaults(&picture);
1601                     avpkt.pts = pkt_pts;
1602                     avpkt.dts = ist->pts;
1603                     pkt_pts = AV_NOPTS_VALUE;
1604
1605                     ret = avcodec_decode_video2(ist->st->codec,
1606                                                 &picture, &got_output, &avpkt);
1607                     quality = same_quality ? picture.quality : 0;
1608                     if (ret < 0)
1609                         goto fail_decode;
1610                     if (!got_output) {
1611                         /* no picture yet */
1612                         goto discard_packet;
1613                     }
1614                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
1615                     if (ist->st->codec->time_base.num != 0) {
1616                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1617                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1618                                           ist->st->codec->time_base.num * ticks) /
1619                             ist->st->codec->time_base.den;
1620                     }
1621                     avpkt.size = 0;
1622                     buffer_to_free = NULL;
1623                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1624                     break;
1625             case AVMEDIA_TYPE_SUBTITLE:
1626                 ret = avcodec_decode_subtitle2(ist->st->codec,
1627                                                &subtitle, &got_output, &avpkt);
1628                 if (ret < 0)
1629                     goto fail_decode;
1630                 if (!got_output) {
1631                     goto discard_packet;
1632                 }
1633                 subtitle_to_free = &subtitle;
1634                 avpkt.size = 0;
1635                 break;
1636             default:
1637                 goto fail_decode;
1638             }
1639         } else {
1640             switch(ist->st->codec->codec_type) {
1641             case AVMEDIA_TYPE_AUDIO:
1642                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1643                     ist->st->codec->sample_rate;
1644                 break;
1645             case AVMEDIA_TYPE_VIDEO:
1646                 if (ist->st->codec->time_base.num != 0) {
1647                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1648                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1649                                       ist->st->codec->time_base.num * ticks) /
1650                         ist->st->codec->time_base.den;
1651                 }
1652                 break;
1653             }
1654             ret = avpkt.size;
1655             avpkt.size = 0;
1656         }
1657
1658 #if CONFIG_AVFILTER
1659         if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1660         if (start_time == 0 || ist->pts >= start_time) {
1661             for(i=0;i<nb_ostreams;i++) {
1662                 ost = ost_table[i];
1663                 if (ost->input_video_filter && ost->source_index == ist_index) {
1664                     if (!picture.sample_aspect_ratio.num)
1665                         picture.sample_aspect_ratio = ist->st->sample_aspect_ratio;
1666                     picture.pts = ist->pts;
1667
1668                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, AV_VSRC_BUF_FLAG_OVERWRITE);
1669                 }
1670             }
1671         }
1672 #endif
1673
1674         // preprocess audio (volume)
1675         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1676             if (audio_volume != 256) {
1677                 short *volp;
1678                 volp = samples;
1679                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1680                     int v = ((*volp) * audio_volume + 128) >> 8;
1681                     if (v < -32768) v = -32768;
1682                     if (v >  32767) v = 32767;
1683                     *volp++ = v;
1684                 }
1685             }
1686         }
1687
1688         /* frame rate emulation */
1689         if (rate_emu) {
1690             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1691             int64_t now = av_gettime() - ist->start;
1692             if (pts > now)
1693                 usleep(pts - now);
1694         }
1695         /* if output time reached then transcode raw format,
1696            encode packets and output them */
1697         if (start_time == 0 || ist->pts >= start_time)
1698             for(i=0;i<nb_ostreams;i++) {
1699                 int frame_size;
1700
1701                 ost = ost_table[i];
1702                 if (ost->source_index == ist_index) {
1703 #if CONFIG_AVFILTER
1704                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1705                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1706                 while (frame_available) {
1707                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter) {
1708                         AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
1709                         if (av_vsink_buffer_get_video_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
1710                             goto cont;
1711                         if (ost->picref) {
1712                             avfilter_fill_frame_from_video_buffer_ref(&picture, ost->picref);
1713                             ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1714                         }
1715                     }
1716 #endif
1717                     os = output_files[ost->file_index];
1718
1719                     /* set the input output pts pairs */
1720                     //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1721
1722                     if (ost->encoding_needed) {
1723                         av_assert0(ist->decoding_needed);
1724                         switch(ost->st->codec->codec_type) {
1725                         case AVMEDIA_TYPE_AUDIO:
1726                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1727                             break;
1728                         case AVMEDIA_TYPE_VIDEO:
1729 #if CONFIG_AVFILTER
1730                             if (ost->picref->video && !ost->frame_aspect_ratio)
1731                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
1732 #endif
1733                             do_video_out(os, ost, ist, &picture, &frame_size,
1734                                          same_quality ? quality : ost->st->codec->global_quality);
1735                             if (vstats_filename && frame_size)
1736                                 do_video_stats(os, ost, frame_size);
1737                             break;
1738                         case AVMEDIA_TYPE_SUBTITLE:
1739                             do_subtitle_out(os, ost, ist, &subtitle,
1740                                             pkt->pts);
1741                             break;
1742                         default:
1743                             abort();
1744                         }
1745                     } else {
1746                         AVFrame avframe; //FIXME/XXX remove this
1747                         AVPicture pict;
1748                         AVPacket opkt;
1749                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1750
1751                         av_init_packet(&opkt);
1752
1753                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1754 #if !CONFIG_AVFILTER
1755                             continue;
1756 #else
1757                             goto cont;
1758 #endif
1759
1760                         /* no reencoding needed : output the packet directly */
1761                         /* force the input stream PTS */
1762
1763                         avcodec_get_frame_defaults(&avframe);
1764                         ost->st->codec->coded_frame= &avframe;
1765                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1766
1767                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1768                             audio_size += data_size;
1769                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1770                             video_size += data_size;
1771                             ost->sync_opts++;
1772                         }
1773
1774                         opkt.stream_index= ost->index;
1775                         if(pkt->pts != AV_NOPTS_VALUE)
1776                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1777                         else
1778                             opkt.pts= AV_NOPTS_VALUE;
1779
1780                         if (pkt->dts == AV_NOPTS_VALUE)
1781                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1782                         else
1783                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1784                         opkt.dts -= ost_tb_start_time;
1785
1786                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1787                         opkt.flags= pkt->flags;
1788
1789                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1790                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1791                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1792                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1793                            ) {
1794                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1795                                 opkt.destruct= av_destruct_packet;
1796                         } else {
1797                             opkt.data = data_buf;
1798                             opkt.size = data_size;
1799                         }
1800
1801                         if (os->oformat->flags & AVFMT_RAWPICTURE) {
1802                             /* store AVPicture in AVPacket, as expected by the output format */
1803                             avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1804                             opkt.data = (uint8_t *)&pict;
1805                             opkt.size = sizeof(AVPicture);
1806                             opkt.flags |= AV_PKT_FLAG_KEY;
1807                         }
1808                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1809                         ost->st->codec->frame_number++;
1810                         ost->frame_number++;
1811                         av_free_packet(&opkt);
1812                     }
1813 #if CONFIG_AVFILTER
1814                     cont:
1815                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1816                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1817                     avfilter_unref_buffer(ost->picref);
1818                 }
1819 #endif
1820                 }
1821             }
1822
1823         av_free(buffer_to_free);
1824         /* XXX: allocate the subtitles in the codec ? */
1825         if (subtitle_to_free) {
1826             avsubtitle_free(subtitle_to_free);
1827             subtitle_to_free = NULL;
1828         }
1829     }
1830  discard_packet:
1831     if (pkt == NULL) {
1832         /* EOF handling */
1833
1834         for(i=0;i<nb_ostreams;i++) {
1835             ost = ost_table[i];
1836             if (ost->source_index == ist_index) {
1837                 AVCodecContext *enc= ost->st->codec;
1838                 os = output_files[ost->file_index];
1839
1840                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1841                     continue;
1842                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1843                     continue;
1844
1845                 if (ost->encoding_needed) {
1846                     for(;;) {
1847                         AVPacket pkt;
1848                         int fifo_bytes;
1849                         av_init_packet(&pkt);
1850                         pkt.stream_index= ost->index;
1851
1852                         switch(ost->st->codec->codec_type) {
1853                         case AVMEDIA_TYPE_AUDIO:
1854                             fifo_bytes = av_fifo_size(ost->fifo);
1855                             ret = 0;
1856                             /* encode any samples remaining in fifo */
1857                             if (fifo_bytes > 0) {
1858                                 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1859                                 int fs_tmp = enc->frame_size;
1860
1861                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1862                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1863                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1864                                 } else { /* pad */
1865                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1866                                     if (allocated_audio_buf_size < frame_bytes)
1867                                         ffmpeg_exit(1);
1868                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1869                                 }
1870
1871                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1872                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1873                                                           ost->st->time_base.num, enc->sample_rate);
1874                                 enc->frame_size = fs_tmp;
1875                             }
1876                             if(ret <= 0) {
1877                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1878                             }
1879                             if (ret < 0) {
1880                                 fprintf(stderr, "Audio encoding failed\n");
1881                                 ffmpeg_exit(1);
1882                             }
1883                             audio_size += ret;
1884                             pkt.flags |= AV_PKT_FLAG_KEY;
1885                             break;
1886                         case AVMEDIA_TYPE_VIDEO:
1887                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1888                             if (ret < 0) {
1889                                 fprintf(stderr, "Video encoding failed\n");
1890                                 ffmpeg_exit(1);
1891                             }
1892                             video_size += ret;
1893                             if(enc->coded_frame && enc->coded_frame->key_frame)
1894                                 pkt.flags |= AV_PKT_FLAG_KEY;
1895                             if (ost->logfile && enc->stats_out) {
1896                                 fprintf(ost->logfile, "%s", enc->stats_out);
1897                             }
1898                             break;
1899                         default:
1900                             ret=-1;
1901                         }
1902
1903                         if(ret<=0)
1904                             break;
1905                         pkt.data= bit_buffer;
1906                         pkt.size= ret;
1907                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1908                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1909                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1910                     }
1911                 }
1912             }
1913         }
1914     }
1915
1916     return 0;
1917  fail_decode:
1918     return -1;
1919 }
1920
1921 static void print_sdp(AVFormatContext **avc, int n)
1922 {
1923     char sdp[2048];
1924
1925     av_sdp_create(avc, n, sdp, sizeof(sdp));
1926     printf("SDP:\n%s\n", sdp);
1927     fflush(stdout);
1928 }
1929
1930 static int copy_chapters(int infile, int outfile)
1931 {
1932     AVFormatContext *is = input_files[infile].ctx;
1933     AVFormatContext *os = output_files[outfile];
1934     int i;
1935
1936     for (i = 0; i < is->nb_chapters; i++) {
1937         AVChapter *in_ch = is->chapters[i], *out_ch;
1938         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
1939                                       AV_TIME_BASE_Q, in_ch->time_base);
1940         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1941                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1942
1943
1944         if (in_ch->end < ts_off)
1945             continue;
1946         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1947             break;
1948
1949         out_ch = av_mallocz(sizeof(AVChapter));
1950         if (!out_ch)
1951             return AVERROR(ENOMEM);
1952
1953         out_ch->id        = in_ch->id;
1954         out_ch->time_base = in_ch->time_base;
1955         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1956         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1957
1958         if (metadata_chapters_autocopy)
1959             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1960
1961         os->nb_chapters++;
1962         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1963         if (!os->chapters)
1964             return AVERROR(ENOMEM);
1965         os->chapters[os->nb_chapters - 1] = out_ch;
1966     }
1967     return 0;
1968 }
1969
1970 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1971                                     AVCodecContext *avctx)
1972 {
1973     char *p;
1974     int n = 1, i;
1975     int64_t t;
1976
1977     for (p = kf; *p; p++)
1978         if (*p == ',')
1979             n++;
1980     ost->forced_kf_count = n;
1981     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1982     if (!ost->forced_kf_pts) {
1983         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1984         ffmpeg_exit(1);
1985     }
1986     for (i = 0; i < n; i++) {
1987         p = i ? strchr(p, ',') + 1 : kf;
1988         t = parse_time_or_die("force_key_frames", p, 1);
1989         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1990     }
1991 }
1992
1993 /*
1994  * The following code is the main loop of the file converter
1995  */
1996 static int transcode(AVFormatContext **output_files,
1997                      int nb_output_files,
1998                      InputFile *input_files,
1999                      int nb_input_files,
2000                      StreamMap *stream_maps, int nb_stream_maps)
2001 {
2002     int ret = 0, i, j, k, n, nb_ostreams = 0, step;
2003
2004     AVFormatContext *is, *os;
2005     AVCodecContext *codec, *icodec;
2006     OutputStream *ost, **ost_table = NULL;
2007     InputStream *ist;
2008     char error[1024];
2009     int key;
2010     int want_sdp = 1;
2011     uint8_t no_packet[MAX_FILES]={0};
2012     int no_packet_count=0;
2013     int nb_frame_threshold[AVMEDIA_TYPE_NB]={0};
2014     int nb_streams[AVMEDIA_TYPE_NB]={0};
2015
2016     if (rate_emu)
2017         for (i = 0; i < nb_input_streams; i++)
2018             input_streams[i].start = av_gettime();
2019
2020     /* output stream init */
2021     nb_ostreams = 0;
2022     for(i=0;i<nb_output_files;i++) {
2023         os = output_files[i];
2024         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
2025             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2026             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2027             ret = AVERROR(EINVAL);
2028             goto fail;
2029         }
2030         nb_ostreams += os->nb_streams;
2031     }
2032     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2033         fprintf(stderr, "Number of stream maps must match number of output streams\n");
2034         ret = AVERROR(EINVAL);
2035         goto fail;
2036     }
2037
2038     /* Sanity check the mapping args -- do the input files & streams exist? */
2039     for(i=0;i<nb_stream_maps;i++) {
2040         int fi = stream_maps[i].file_index;
2041         int si = stream_maps[i].stream_index;
2042
2043         if (fi < 0 || fi > nb_input_files - 1 ||
2044             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
2045             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2046             ret = AVERROR(EINVAL);
2047             goto fail;
2048         }
2049         fi = stream_maps[i].sync_file_index;
2050         si = stream_maps[i].sync_stream_index;
2051         if (fi < 0 || fi > nb_input_files - 1 ||
2052             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
2053             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2054             ret = AVERROR(EINVAL);
2055             goto fail;
2056         }
2057     }
2058
2059     ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
2060     if (!ost_table)
2061         goto fail;
2062
2063     for(k=0;k<nb_output_files;k++) {
2064         os = output_files[k];
2065         for(i=0;i<os->nb_streams;i++,n++) {
2066             nb_streams[os->streams[i]->codec->codec_type]++;
2067         }
2068     }
2069     for(step=1<<30; step; step>>=1){
2070         int found_streams[AVMEDIA_TYPE_NB]={0};
2071         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2072             nb_frame_threshold[j] += step;
2073
2074         for(j=0; j<nb_input_streams; j++) {
2075             int skip=0;
2076             ist = &input_streams[j];
2077             if(opt_programid){
2078                 int pi,si;
2079                 AVFormatContext *f= input_files[ ist->file_index ].ctx;
2080                 skip=1;
2081                 for(pi=0; pi<f->nb_programs; pi++){
2082                     AVProgram *p= f->programs[pi];
2083                     if(p->id == opt_programid)
2084                         for(si=0; si<p->nb_stream_indexes; si++){
2085                             if(f->streams[ p->stream_index[si] ] == ist->st)
2086                                 skip=0;
2087                         }
2088                 }
2089             }
2090             if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip
2091                 && nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames){
2092                 found_streams[ist->st->codec->codec_type]++;
2093             }
2094         }
2095         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2096             if(found_streams[j] < nb_streams[j])
2097                 nb_frame_threshold[j] -= step;
2098     }
2099     n = 0;
2100     for(k=0;k<nb_output_files;k++) {
2101         os = output_files[k];
2102         for(i=0;i<os->nb_streams;i++,n++) {
2103             int found;
2104             ost = ost_table[n] = output_streams_for_file[k][i];
2105             ost->st = os->streams[i];
2106             if (nb_stream_maps > 0) {
2107                 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2108                     stream_maps[n].stream_index;
2109
2110                 /* Sanity check that the stream types match */
2111                 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2112                     int i= ost->file_index;
2113                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2114                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2115                         stream_maps[n].file_index, stream_maps[n].stream_index,
2116                         ost->file_index, ost->index);
2117                     ffmpeg_exit(1);
2118                 }
2119
2120             } else {
2121                 /* get corresponding input stream index : we select the first one with the right type */
2122                 found = 0;
2123                 for (j = 0; j < nb_input_streams; j++) {
2124                     int skip=0;
2125                     ist = &input_streams[j];
2126                     if(opt_programid){
2127                         int pi,si;
2128                         AVFormatContext *f = input_files[ist->file_index].ctx;
2129                         skip=1;
2130                         for(pi=0; pi<f->nb_programs; pi++){
2131                             AVProgram *p= f->programs[pi];
2132                             if(p->id == opt_programid)
2133                                 for(si=0; si<p->nb_stream_indexes; si++){
2134                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2135                                         skip=0;
2136                                 }
2137                         }
2138                     }
2139                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2140                         ist->st->codec->codec_type == ost->st->codec->codec_type &&
2141                         nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames) {
2142                             ost->source_index = j;
2143                             found = 1;
2144                             break;
2145                     }
2146                 }
2147
2148                 if (!found) {
2149                     if(! opt_programid) {
2150                         /* try again and reuse existing stream */
2151                         for (j = 0; j < nb_input_streams; j++) {
2152                             ist = &input_streams[j];
2153                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2154                                 && ist->st->discard != AVDISCARD_ALL) {
2155                                 ost->source_index = j;
2156                                 found = 1;
2157                             }
2158                         }
2159                     }
2160                     if (!found) {
2161                         int i= ost->file_index;
2162                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2163                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2164                                 ost->file_index, ost->index);
2165                         ffmpeg_exit(1);
2166                     }
2167                 }
2168             }
2169             ist = &input_streams[ost->source_index];
2170             ist->discard = 0;
2171             ost->sync_ist = (nb_stream_maps > 0) ?
2172                 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2173                          stream_maps[n].sync_stream_index] : ist;
2174         }
2175     }
2176
2177     /* for each output stream, we compute the right encoding parameters */
2178     for(i=0;i<nb_ostreams;i++) {
2179         ost = ost_table[i];
2180         os = output_files[ost->file_index];
2181         ist = &input_streams[ost->source_index];
2182
2183         codec = ost->st->codec;
2184         icodec = ist->st->codec;
2185
2186         if (metadata_streams_autocopy)
2187             av_dict_copy(&ost->st->metadata, ist->st->metadata,
2188                          AV_DICT_DONT_OVERWRITE);
2189
2190         ost->st->disposition = ist->st->disposition;
2191         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2192         codec->chroma_sample_location = icodec->chroma_sample_location;
2193
2194         if (ost->st->stream_copy) {
2195             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2196
2197             if (extra_size > INT_MAX)
2198                 goto fail;
2199
2200             /* if stream_copy is selected, no need to decode or encode */
2201             codec->codec_id = icodec->codec_id;
2202             codec->codec_type = icodec->codec_type;
2203
2204             if(!codec->codec_tag){
2205                 if(   !os->oformat->codec_tag
2206                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2207                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2208                     codec->codec_tag = icodec->codec_tag;
2209             }
2210
2211             codec->bit_rate = icodec->bit_rate;
2212             codec->rc_max_rate    = icodec->rc_max_rate;
2213             codec->rc_buffer_size = icodec->rc_buffer_size;
2214             codec->extradata= av_mallocz(extra_size);
2215             if (!codec->extradata)
2216                 goto fail;
2217             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2218             codec->extradata_size= icodec->extradata_size;
2219             if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
2220                 codec->time_base = icodec->time_base;
2221                 codec->time_base.num *= icodec->ticks_per_frame;
2222                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2223                           codec->time_base.num, codec->time_base.den, INT_MAX);
2224             }else
2225                 codec->time_base = ist->st->time_base;
2226             switch(codec->codec_type) {
2227             case AVMEDIA_TYPE_AUDIO:
2228                 if(audio_volume != 256) {
2229                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2230                     ffmpeg_exit(1);
2231                 }
2232                 codec->channel_layout = icodec->channel_layout;
2233                 codec->sample_rate = icodec->sample_rate;
2234                 codec->channels = icodec->channels;
2235                 codec->frame_size = icodec->frame_size;
2236                 codec->audio_service_type = icodec->audio_service_type;
2237                 codec->block_align= icodec->block_align;
2238                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2239                     codec->block_align= 0;
2240                 if(codec->codec_id == CODEC_ID_AC3)
2241                     codec->block_align= 0;
2242                 break;
2243             case AVMEDIA_TYPE_VIDEO:
2244                 codec->pix_fmt = icodec->pix_fmt;
2245                 codec->width = icodec->width;
2246                 codec->height = icodec->height;
2247                 codec->has_b_frames = icodec->has_b_frames;
2248                 if (!codec->sample_aspect_ratio.num) {
2249                     codec->sample_aspect_ratio =
2250                     ost->st->sample_aspect_ratio =
2251                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2252                         ist->st->codec->sample_aspect_ratio.num ?
2253                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2254                 }
2255                 break;
2256             case AVMEDIA_TYPE_SUBTITLE:
2257                 codec->width = icodec->width;
2258                 codec->height = icodec->height;
2259                 break;
2260             case AVMEDIA_TYPE_DATA:
2261                 break;
2262             default:
2263                 abort();
2264             }
2265         } else {
2266             if (!ost->enc)
2267                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2268             switch(codec->codec_type) {
2269             case AVMEDIA_TYPE_AUDIO:
2270                 ost->fifo= av_fifo_alloc(1024);
2271                 if(!ost->fifo)
2272                     goto fail;
2273                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2274                 if (!codec->sample_rate) {
2275                     codec->sample_rate = icodec->sample_rate;
2276                     if (icodec->lowres)
2277                         codec->sample_rate >>= icodec->lowres;
2278                 }
2279                 choose_sample_rate(ost->st, ost->enc);
2280                 codec->time_base = (AVRational){1, codec->sample_rate};
2281                 if (!codec->channels) {
2282                     codec->channels = icodec->channels;
2283                     codec->channel_layout = icodec->channel_layout;
2284                 }
2285                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2286                     codec->channel_layout = 0;
2287                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2288                 icodec->request_channels = codec->channels;
2289                 ist->decoding_needed = 1;
2290                 ost->encoding_needed = 1;
2291                 ost->resample_sample_fmt  = icodec->sample_fmt;
2292                 ost->resample_sample_rate = icodec->sample_rate;
2293                 ost->resample_channels    = icodec->channels;
2294                 break;
2295             case AVMEDIA_TYPE_VIDEO:
2296                 if (codec->pix_fmt == PIX_FMT_NONE)
2297                     codec->pix_fmt = icodec->pix_fmt;
2298                 choose_pixel_fmt(ost->st, ost->enc);
2299
2300                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2301                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2302                     ffmpeg_exit(1);
2303                 }
2304                 ost->video_resample = codec->width   != icodec->width  ||
2305                                       codec->height  != icodec->height ||
2306                                       codec->pix_fmt != icodec->pix_fmt;
2307                 if (ost->video_resample) {
2308                     codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2309                 }
2310                 if (!codec->width || !codec->height) {
2311                     codec->width  = icodec->width;
2312                     codec->height = icodec->height;
2313                 }
2314                 ost->resample_height = icodec->height;
2315                 ost->resample_width  = icodec->width;
2316                 ost->resample_pix_fmt= icodec->pix_fmt;
2317                 ost->encoding_needed = 1;
2318                 ist->decoding_needed = 1;
2319
2320                 if (!ost->frame_rate.num)
2321                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2322                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2323                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2324                     ost->frame_rate = ost->enc->supported_framerates[idx];
2325                 }
2326                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2327                 if(   av_q2d(codec->time_base) < 0.001 && video_sync_method
2328                    && (video_sync_method==1 || (video_sync_method<0 && !(os->oformat->flags & AVFMT_VARIABLE_FPS)))){
2329                     av_log(os, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
2330                                                "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
2331                 }
2332
2333 #if CONFIG_AVFILTER
2334                 if (configure_video_filters(ist, ost)) {
2335                     fprintf(stderr, "Error opening filters!\n");
2336                     exit(1);
2337                 }
2338 #endif
2339                 break;
2340             case AVMEDIA_TYPE_SUBTITLE:
2341                 ost->encoding_needed = 1;
2342                 ist->decoding_needed = 1;
2343                 break;
2344             default:
2345                 abort();
2346                 break;
2347             }
2348             /* two pass mode */
2349             if (ost->encoding_needed && codec->codec_id != CODEC_ID_H264 &&
2350                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2351                 char logfilename[1024];
2352                 FILE *f;
2353
2354                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2355                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2356                          i);
2357                 if (codec->flags & CODEC_FLAG_PASS1) {
2358                     f = fopen(logfilename, "wb");
2359                     if (!f) {
2360                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2361                         ffmpeg_exit(1);
2362                     }
2363                     ost->logfile = f;
2364                 } else {
2365                     char  *logbuffer;
2366                     size_t logbuffer_size;
2367                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2368                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2369                         ffmpeg_exit(1);
2370                     }
2371                     codec->stats_in = logbuffer;
2372                 }
2373             }
2374         }
2375         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2376             /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
2377             int size= codec->width * codec->height;
2378             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);
2379         }
2380     }
2381
2382     if (!bit_buffer)
2383         bit_buffer = av_malloc(bit_buffer_size);
2384     if (!bit_buffer) {
2385         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2386                 bit_buffer_size);
2387         ret = AVERROR(ENOMEM);
2388         goto fail;
2389     }
2390
2391     /* open each encoder */
2392     for(i=0;i<nb_ostreams;i++) {
2393         ost = ost_table[i];
2394         if (ost->encoding_needed) {
2395             AVCodec *codec = ost->enc;
2396             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2397             if (!codec) {
2398                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2399                          ost->st->codec->codec_id, ost->file_index, ost->index);
2400                 ret = AVERROR(EINVAL);
2401                 goto dump_format;
2402             }
2403             if (dec->subtitle_header) {
2404                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2405                 if (!ost->st->codec->subtitle_header) {
2406                     ret = AVERROR(ENOMEM);
2407                     goto dump_format;
2408                 }
2409                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2410                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2411             }
2412             if (avcodec_open(ost->st->codec, codec) < 0) {
2413                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2414                         ost->file_index, ost->index);
2415                 ret = AVERROR(EINVAL);
2416                 goto dump_format;
2417             }
2418             extra_size += ost->st->codec->extradata_size;
2419         }
2420     }
2421
2422     /* open each decoder */
2423     for (i = 0; i < nb_input_streams; i++) {
2424         ist = &input_streams[i];
2425         if (ist->decoding_needed) {
2426             AVCodec *codec = ist->dec;
2427             if (!codec)
2428                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2429             if (!codec) {
2430                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2431                         ist->st->codec->codec_id, ist->file_index, ist->st->index);
2432                 ret = AVERROR(EINVAL);
2433                 goto dump_format;
2434             }
2435             if (avcodec_open(ist->st->codec, codec) < 0) {
2436                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2437                         ist->file_index, ist->st->index);
2438                 ret = AVERROR(EINVAL);
2439                 goto dump_format;
2440             }
2441             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2442             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2443         }
2444     }
2445
2446     /* init pts */
2447     for (i = 0; i < nb_input_streams; i++) {
2448         AVStream *st;
2449         ist = &input_streams[i];
2450         st= ist->st;
2451         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2452         ist->next_pts = AV_NOPTS_VALUE;
2453         ist->is_start = 1;
2454     }
2455
2456     /* set meta data information from input file if required */
2457     for (i=0;i<nb_meta_data_maps;i++) {
2458         AVFormatContext *files[2];
2459         AVDictionary    **meta[2];
2460         int j;
2461
2462 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2463         if ((index) < 0 || (index) >= (nb_elems)) {\
2464             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2465                      (desc), (index));\
2466             ret = AVERROR(EINVAL);\
2467             goto dump_format;\
2468         }
2469
2470         int out_file_index = meta_data_maps[i][0].file;
2471         int in_file_index = meta_data_maps[i][1].file;
2472         if (in_file_index < 0 || out_file_index < 0)
2473             continue;
2474         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2475         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2476
2477         files[0] = output_files[out_file_index];
2478         files[1] = input_files[in_file_index].ctx;
2479
2480         for (j = 0; j < 2; j++) {
2481             MetadataMap *map = &meta_data_maps[i][j];
2482
2483             switch (map->type) {
2484             case 'g':
2485                 meta[j] = &files[j]->metadata;
2486                 break;
2487             case 's':
2488                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2489                 meta[j] = &files[j]->streams[map->index]->metadata;
2490                 break;
2491             case 'c':
2492                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2493                 meta[j] = &files[j]->chapters[map->index]->metadata;
2494                 break;
2495             case 'p':
2496                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2497                 meta[j] = &files[j]->programs[map->index]->metadata;
2498                 break;
2499             }
2500         }
2501
2502         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2503     }
2504
2505     /* copy global metadata by default */
2506     if (metadata_global_autocopy) {
2507
2508         for (i = 0; i < nb_output_files; i++)
2509             av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2510                          AV_DICT_DONT_OVERWRITE);
2511     }
2512
2513     /* copy chapters according to chapter maps */
2514     for (i = 0; i < nb_chapter_maps; i++) {
2515         int infile  = chapter_maps[i].in_file;
2516         int outfile = chapter_maps[i].out_file;
2517
2518         if (infile < 0 || outfile < 0)
2519             continue;
2520         if (infile >= nb_input_files) {
2521             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2522             ret = AVERROR(EINVAL);
2523             goto dump_format;
2524         }
2525         if (outfile >= nb_output_files) {
2526             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2527             ret = AVERROR(EINVAL);
2528             goto dump_format;
2529         }
2530         copy_chapters(infile, outfile);
2531     }
2532
2533     /* copy chapters from the first input file that has them*/
2534     if (!nb_chapter_maps)
2535         for (i = 0; i < nb_input_files; i++) {
2536             if (!input_files[i].ctx->nb_chapters)
2537                 continue;
2538
2539             for (j = 0; j < nb_output_files; j++)
2540                 if ((ret = copy_chapters(i, j)) < 0)
2541                     goto dump_format;
2542             break;
2543         }
2544
2545     /* open files and write file headers */
2546     for(i=0;i<nb_output_files;i++) {
2547         os = output_files[i];
2548         if (av_write_header(os) < 0) {
2549             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2550             ret = AVERROR(EINVAL);
2551             goto dump_format;
2552         }
2553         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2554             want_sdp = 0;
2555         }
2556     }
2557
2558  dump_format:
2559     /* dump the file output parameters - cannot be done before in case
2560        of stream copy */
2561     for(i=0;i<nb_output_files;i++) {
2562         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2563     }
2564
2565     /* dump the stream mapping */
2566     if (verbose >= 0) {
2567         fprintf(stderr, "Stream mapping:\n");
2568         for(i=0;i<nb_ostreams;i++) {
2569             ost = ost_table[i];
2570             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2571                     input_streams[ost->source_index].file_index,
2572                     input_streams[ost->source_index].st->index,
2573                     ost->file_index,
2574                     ost->index);
2575             if (ost->sync_ist != &input_streams[ost->source_index])
2576                 fprintf(stderr, " [sync #%d.%d]",
2577                         ost->sync_ist->file_index,
2578                         ost->sync_ist->st->index);
2579             fprintf(stderr, "\n");
2580         }
2581     }
2582
2583     if (ret) {
2584         fprintf(stderr, "%s\n", error);
2585         goto fail;
2586     }
2587
2588     if (want_sdp) {
2589         print_sdp(output_files, nb_output_files);
2590     }
2591
2592     if (!using_stdin) {
2593         if(verbose >= 0)
2594             fprintf(stderr, "Press [q] to stop, [?] for help\n");
2595         avio_set_interrupt_cb(decode_interrupt_cb);
2596     }
2597     term_init();
2598
2599     timer_start = av_gettime();
2600
2601     for(; received_sigterm == 0;) {
2602         int file_index, ist_index;
2603         AVPacket pkt;
2604         double ipts_min;
2605         double opts_min;
2606
2607     redo:
2608         ipts_min= 1e100;
2609         opts_min= 1e100;
2610         /* if 'q' pressed, exits */
2611         if (!using_stdin) {
2612             if (q_pressed)
2613                 break;
2614             /* read_key() returns 0 on EOF */
2615             key = read_key();
2616             if (key == 'q')
2617                 break;
2618             if (key == '+') verbose++;
2619             if (key == '-') verbose--;
2620             if (key == 's') qp_hist     ^= 1;
2621             if (key == 'h'){
2622                 if (do_hex_dump){
2623                     do_hex_dump = do_pkt_dump = 0;
2624                 } else if(do_pkt_dump){
2625                     do_hex_dump = 1;
2626                 } else
2627                     do_pkt_dump = 1;
2628                 av_log_set_level(AV_LOG_DEBUG);
2629             }
2630             if (key == 'd' || key == 'D'){
2631                 int debug=0;
2632                 if(key == 'D') {
2633                     debug = input_streams[0].st->codec->debug<<1;
2634                     if(!debug) debug = 1;
2635                     while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2636                         debug += debug;
2637                 }else
2638                     scanf("%d", &debug);
2639                 for(i=0;i<nb_input_streams;i++) {
2640                     input_streams[i].st->codec->debug = debug;
2641                 }
2642                 for(i=0;i<nb_ostreams;i++) {
2643                     ost = ost_table[i];
2644                     ost->st->codec->debug = debug;
2645                 }
2646                 if(debug) av_log_set_level(AV_LOG_DEBUG);
2647                 fprintf(stderr,"debug=%d\n", debug);
2648             }
2649             if (key == '?'){
2650                 fprintf(stderr, "key    function\n"
2651                                 "?      show this help\n"
2652                                 "+      increase verbosity\n"
2653                                 "-      decrease verbosity\n"
2654                                 "D      cycle through available debug modes\n"
2655                                 "h      dump packets/hex press to cycle through the 3 states\n"
2656                                 "q      quit\n"
2657                                 "s      Show QP histogram\n"
2658                 );
2659             }
2660         }
2661
2662         /* select the stream that we must read now by looking at the
2663            smallest output pts */
2664         file_index = -1;
2665         for(i=0;i<nb_ostreams;i++) {
2666             double ipts, opts;
2667             ost = ost_table[i];
2668             os = output_files[ost->file_index];
2669             ist = &input_streams[ost->source_index];
2670             if(ist->is_past_recording_time || no_packet[ist->file_index])
2671                 continue;
2672                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2673             ipts = (double)ist->pts;
2674             if (!input_files[ist->file_index].eof_reached){
2675                 if(ipts < ipts_min) {
2676                     ipts_min = ipts;
2677                     if(input_sync ) file_index = ist->file_index;
2678                 }
2679                 if(opts < opts_min) {
2680                     opts_min = opts;
2681                     if(!input_sync) file_index = ist->file_index;
2682                 }
2683             }
2684             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2685                 file_index= -1;
2686                 break;
2687             }
2688         }
2689         /* if none, if is finished */
2690         if (file_index < 0) {
2691             if(no_packet_count){
2692                 no_packet_count=0;
2693                 memset(no_packet, 0, sizeof(no_packet));
2694                 usleep(10000);
2695                 continue;
2696             }
2697             break;
2698         }
2699
2700         /* finish if limit size exhausted */
2701         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2702             break;
2703
2704         /* read a frame from it and output it in the fifo */
2705         is = input_files[file_index].ctx;
2706         ret= av_read_frame(is, &pkt);
2707         if(ret == AVERROR(EAGAIN)){
2708             no_packet[file_index]=1;
2709             no_packet_count++;
2710             continue;
2711         }
2712         if (ret < 0) {
2713             input_files[file_index].eof_reached = 1;
2714             if (opt_shortest)
2715                 break;
2716             else
2717                 continue;
2718         }
2719
2720         no_packet_count=0;
2721         memset(no_packet, 0, sizeof(no_packet));
2722
2723         if (do_pkt_dump) {
2724             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2725                              is->streams[pkt.stream_index]);
2726         }
2727         /* the following test is needed in case new streams appear
2728            dynamically in stream : we ignore them */
2729         if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2730             goto discard_packet;
2731         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2732         ist = &input_streams[ist_index];
2733         if (ist->discard)
2734             goto discard_packet;
2735
2736         if (pkt.dts != AV_NOPTS_VALUE)
2737             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2738         if (pkt.pts != AV_NOPTS_VALUE)
2739             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2740
2741         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2742             && input_files_ts_scale[file_index][pkt.stream_index]){
2743             if(pkt.pts != AV_NOPTS_VALUE)
2744                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2745             if(pkt.dts != AV_NOPTS_VALUE)
2746                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2747         }
2748
2749 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
2750         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2751             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2752             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2753             int64_t delta= pkt_dts - ist->next_pts;
2754             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2755                 input_files[ist->file_index].ts_offset -= delta;
2756                 if (verbose > 2)
2757                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2758                             delta, input_files[ist->file_index].ts_offset);
2759                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2760                 if(pkt.pts != AV_NOPTS_VALUE)
2761                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2762             }
2763         }
2764
2765         /* finish if recording time exhausted */
2766         if (recording_time != INT64_MAX &&
2767             (pkt.pts != AV_NOPTS_VALUE ?
2768                 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000})
2769                     :
2770                 av_compare_ts(ist->pts, AV_TIME_BASE_Q, recording_time + start_time, (AVRational){1, 1000000})
2771             )>= 0) {
2772             ist->is_past_recording_time = 1;
2773             goto discard_packet;
2774         }
2775
2776         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2777         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2778
2779             if (verbose >= 0)
2780                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2781                         ist->file_index, ist->st->index);
2782             if (exit_on_error)
2783                 ffmpeg_exit(1);
2784             av_free_packet(&pkt);
2785             goto redo;
2786         }
2787
2788     discard_packet:
2789         av_free_packet(&pkt);
2790
2791         /* dump report by using the output first video and audio streams */
2792         print_report(output_files, ost_table, nb_ostreams, 0);
2793     }
2794
2795     /* at the end of stream, we must flush the decoder buffers */
2796     for (i = 0; i < nb_input_streams; i++) {
2797         ist = &input_streams[i];
2798         if (ist->decoding_needed) {
2799             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2800         }
2801     }
2802
2803     term_exit();
2804
2805     /* write the trailer if needed and close file */
2806     for(i=0;i<nb_output_files;i++) {
2807         os = output_files[i];
2808         av_write_trailer(os);
2809     }
2810
2811     /* dump report by using the first video and audio streams */
2812     print_report(output_files, ost_table, nb_ostreams, 1);
2813
2814     /* close each encoder */
2815     for(i=0;i<nb_ostreams;i++) {
2816         ost = ost_table[i];
2817         if (ost->encoding_needed) {
2818             av_freep(&ost->st->codec->stats_in);
2819             avcodec_close(ost->st->codec);
2820         }
2821 #if CONFIG_AVFILTER
2822         avfilter_graph_free(&ost->graph);
2823 #endif
2824     }
2825
2826     /* close each decoder */
2827     for (i = 0; i < nb_input_streams; i++) {
2828         ist = &input_streams[i];
2829         if (ist->decoding_needed) {
2830             avcodec_close(ist->st->codec);
2831         }
2832     }
2833
2834     /* finished ! */
2835     ret = 0;
2836
2837  fail:
2838     av_freep(&bit_buffer);
2839
2840     if (ost_table) {
2841         for(i=0;i<nb_ostreams;i++) {
2842             ost = ost_table[i];
2843             if (ost) {
2844                 if (ost->st->stream_copy)
2845                     av_freep(&ost->st->codec->extradata);
2846                 if (ost->logfile) {
2847                     fclose(ost->logfile);
2848                     ost->logfile = NULL;
2849                 }
2850                 av_fifo_free(ost->fifo); /* works even if fifo is not
2851                                              initialized but set to zero */
2852                 av_freep(&ost->st->codec->subtitle_header);
2853                 av_free(ost->resample_frame.data[0]);
2854                 av_free(ost->forced_kf_pts);
2855                 if (ost->video_resample)
2856                     sws_freeContext(ost->img_resample_ctx);
2857                 if (ost->resample)
2858                     audio_resample_close(ost->resample);
2859                 if (ost->reformat_ctx)
2860                     av_audio_convert_free(ost->reformat_ctx);
2861                 av_free(ost);
2862             }
2863         }
2864         av_free(ost_table);
2865     }
2866     return ret;
2867 }
2868
2869 static int opt_format(const char *opt, const char *arg)
2870 {
2871     last_asked_format = arg;
2872     return 0;
2873 }
2874
2875 static int opt_video_rc_override_string(const char *opt, const char *arg)
2876 {
2877     video_rc_override_string = arg;
2878     return 0;
2879 }
2880
2881 static int opt_me_threshold(const char *opt, const char *arg)
2882 {
2883     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2884     return 0;
2885 }
2886
2887 static int opt_verbose(const char *opt, const char *arg)
2888 {
2889     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2890     return 0;
2891 }
2892
2893 static int opt_frame_rate(const char *opt, const char *arg)
2894 {
2895     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2896         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2897         ffmpeg_exit(1);
2898     }
2899     return 0;
2900 }
2901
2902 static int opt_bitrate(const char *opt, const char *arg)
2903 {
2904     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2905
2906     opt_default(opt, arg);
2907
2908     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2909         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2910
2911     return 0;
2912 }
2913
2914 static int opt_frame_crop(const char *opt, const char *arg)
2915 {
2916     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2917     return AVERROR(EINVAL);
2918 }
2919
2920 static int opt_frame_size(const char *opt, const char *arg)
2921 {
2922     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2923         fprintf(stderr, "Incorrect frame size\n");
2924         return AVERROR(EINVAL);
2925     }
2926     return 0;
2927 }
2928
2929 static int opt_pad(const char *opt, const char *arg) {
2930     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2931     return -1;
2932 }
2933
2934 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2935 {
2936     if (strcmp(arg, "list")) {
2937         frame_pix_fmt = av_get_pix_fmt(arg);
2938         if (frame_pix_fmt == PIX_FMT_NONE) {
2939             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2940             return AVERROR(EINVAL);
2941         }
2942     } else {
2943         opt_pix_fmts(NULL, NULL);
2944         ffmpeg_exit(0);
2945     }
2946     return 0;
2947 }
2948
2949 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2950 {
2951     int x = 0, y = 0;
2952     double ar = 0;
2953     const char *p;
2954     char *end;
2955
2956     p = strchr(arg, ':');
2957     if (p) {
2958         x = strtol(arg, &end, 10);
2959         if (end == p)
2960             y = strtol(end+1, &end, 10);
2961         if (x > 0 && y > 0)
2962             ar = (double)x / (double)y;
2963     } else
2964         ar = strtod(arg, NULL);
2965
2966     if (!ar) {
2967         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2968         return AVERROR(EINVAL);
2969     }
2970     frame_aspect_ratio = ar;
2971     return 0;
2972 }
2973
2974 static int opt_metadata(const char *opt, const char *arg)
2975 {
2976     char *mid= strchr(arg, '=');
2977
2978     if(!mid){
2979         fprintf(stderr, "Missing =\n");
2980         ffmpeg_exit(1);
2981     }
2982     *mid++= 0;
2983
2984     av_dict_set(&metadata, arg, mid, 0);
2985
2986     return 0;
2987 }
2988
2989 static int opt_qscale(const char *opt, const char *arg)
2990 {
2991     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2992     if (video_qscale <= 0 || video_qscale > 255) {
2993         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2994         return AVERROR(EINVAL);
2995     }
2996     return 0;
2997 }
2998
2999 static int opt_top_field_first(const char *opt, const char *arg)
3000 {
3001     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
3002     opt_default(opt, arg);
3003     return 0;
3004 }
3005
3006 static int opt_thread_count(const char *opt, const char *arg)
3007 {
3008     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3009 #if !HAVE_THREADS
3010     if (verbose >= 0)
3011         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3012 #endif
3013     return 0;
3014 }
3015
3016 static int opt_audio_sample_fmt(const char *opt, const char *arg)
3017 {
3018     if (strcmp(arg, "list")) {
3019         audio_sample_fmt = av_get_sample_fmt(arg);
3020         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
3021             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
3022             return AVERROR(EINVAL);
3023         }
3024     } else {
3025         int i;
3026         char fmt_str[128];
3027         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
3028             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
3029         ffmpeg_exit(0);
3030     }
3031     return 0;
3032 }
3033
3034 static int opt_audio_rate(const char *opt, const char *arg)
3035 {
3036     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3037     return 0;
3038 }
3039
3040 static int opt_audio_channels(const char *opt, const char *arg)
3041 {
3042     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3043     return 0;
3044 }
3045
3046 static int opt_video_channel(const char *opt, const char *arg)
3047 {
3048     video_channel = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3049     return 0;
3050 }
3051
3052 static int opt_video_standard(const char *opt, const char *arg)
3053 {
3054     video_standard = av_strdup(arg);
3055     return 0;
3056 }
3057
3058 static int opt_codec(const char *opt, const char *arg)
3059 {
3060     int *pstream_copy; char **pcodec_name; enum AVMediaType codec_type;
3061
3062     if      (!strcmp(opt, "acodec")) { pstream_copy = &audio_stream_copy;    pcodec_name = &audio_codec_name;    codec_type = AVMEDIA_TYPE_AUDIO;    }
3063     else if (!strcmp(opt, "vcodec")) { pstream_copy = &video_stream_copy;    pcodec_name = &video_codec_name;    codec_type = AVMEDIA_TYPE_VIDEO;    }
3064     else if (!strcmp(opt, "scodec")) { pstream_copy = &subtitle_stream_copy; pcodec_name = &subtitle_codec_name; codec_type = AVMEDIA_TYPE_SUBTITLE; }
3065     else if (!strcmp(opt, "dcodec")) { pstream_copy = &data_stream_copy;     pcodec_name = &data_codec_name;     codec_type = AVMEDIA_TYPE_DATA;     }
3066
3067     av_freep(pcodec_name);
3068     if (!strcmp(arg, "copy")) {
3069         *pstream_copy = 1;
3070     } else {
3071         *pcodec_name = av_strdup(arg);
3072     }
3073     return 0;
3074 }
3075
3076 static int opt_codec_tag(const char *opt, const char *arg)
3077 {
3078     char *tail;
3079     uint32_t *codec_tag;
3080
3081     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
3082                 !strcmp(opt, "vtag") ? &video_codec_tag :
3083                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
3084     if (!codec_tag)
3085         return -1;
3086
3087     *codec_tag = strtol(arg, &tail, 0);
3088     if (!tail || *tail)
3089         *codec_tag = AV_RL32(arg);
3090
3091     return 0;
3092 }
3093
3094 static int opt_map(const char *opt, const char *arg)
3095 {
3096     StreamMap *m;
3097     char *p;
3098
3099     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
3100     m = &stream_maps[nb_stream_maps-1];
3101
3102     m->file_index = strtol(arg, &p, 0);
3103     if (*p)
3104         p++;
3105
3106     m->stream_index = strtol(p, &p, 0);
3107     if (*p) {
3108         p++;
3109         m->sync_file_index = strtol(p, &p, 0);
3110         if (*p)
3111             p++;
3112         m->sync_stream_index = strtol(p, &p, 0);
3113     } else {
3114         m->sync_file_index = m->file_index;
3115         m->sync_stream_index = m->stream_index;
3116     }
3117     return 0;
3118 }
3119
3120 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3121 {
3122     *endptr = arg;
3123     if (*arg == ',') {
3124         *type = *(++arg);
3125         switch (*arg) {
3126         case 'g':
3127             break;
3128         case 's':
3129         case 'c':
3130         case 'p':
3131             *index = strtol(++arg, endptr, 0);
3132             break;
3133         default:
3134             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3135             ffmpeg_exit(1);
3136         }
3137     } else
3138         *type = 'g';
3139 }
3140
3141 static int opt_map_metadata(const char *opt, const char *arg)
3142 {
3143     MetadataMap *m, *m1;
3144     char *p;
3145
3146     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3147                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3148
3149     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3150     m->file = strtol(arg, &p, 0);
3151     parse_meta_type(p, &m->type, &m->index, &p);
3152     if (*p)
3153         p++;
3154
3155     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3156     m1->file = strtol(p, &p, 0);
3157     parse_meta_type(p, &m1->type, &m1->index, &p);
3158
3159     if (m->type == 'g' || m1->type == 'g')
3160         metadata_global_autocopy = 0;
3161     if (m->type == 's' || m1->type == 's')
3162         metadata_streams_autocopy = 0;
3163     if (m->type == 'c' || m1->type == 'c')
3164         metadata_chapters_autocopy = 0;
3165
3166     return 0;
3167 }
3168
3169 static int opt_map_meta_data(const char *opt, const char *arg)
3170 {
3171     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3172                     "Use -map_metadata instead.\n");
3173     return opt_map_metadata(opt, arg);
3174 }
3175
3176 static int opt_map_chapters(const char *opt, const char *arg)
3177 {
3178     ChapterMap *c;
3179     char *p;
3180
3181     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3182                               nb_chapter_maps + 1);
3183     c = &chapter_maps[nb_chapter_maps - 1];
3184     c->out_file = strtol(arg, &p, 0);
3185     if (*p)
3186         p++;
3187
3188     c->in_file = strtol(p, &p, 0);
3189     return 0;
3190 }
3191
3192 static int opt_input_ts_scale(const char *opt, const char *arg)
3193 {
3194     unsigned int stream;
3195     double scale;
3196     char *p;
3197
3198     stream = strtol(arg, &p, 0);
3199     if (*p)
3200         p++;
3201     scale= strtod(p, &p);
3202
3203     if(stream >= MAX_STREAMS)
3204         ffmpeg_exit(1);
3205
3206     input_files_ts_scale[nb_input_files] = grow_array(input_files_ts_scale[nb_input_files], sizeof(*input_files_ts_scale[nb_input_files]), &nb_input_files_ts_scale[nb_input_files], stream + 1);
3207     input_files_ts_scale[nb_input_files][stream]= scale;
3208     return 0;
3209 }
3210
3211 static int opt_recording_time(const char *opt, const char *arg)
3212 {
3213     recording_time = parse_time_or_die(opt, arg, 1);
3214     return 0;
3215 }
3216
3217 static int opt_start_time(const char *opt, const char *arg)
3218 {
3219     start_time = parse_time_or_die(opt, arg, 1);
3220     return 0;
3221 }
3222
3223 static int opt_recording_timestamp(const char *opt, const char *arg)
3224 {
3225     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3226     return 0;
3227 }
3228
3229 static int opt_input_ts_offset(const char *opt, const char *arg)
3230 {
3231     input_ts_offset = parse_time_or_die(opt, arg, 1);
3232     return 0;
3233 }
3234
3235 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3236 {
3237     const char *codec_string = encoder ? "encoder" : "decoder";
3238     AVCodec *codec;
3239
3240     if(!name)
3241         return CODEC_ID_NONE;
3242     codec = encoder ?
3243         avcodec_find_encoder_by_name(name) :
3244         avcodec_find_decoder_by_name(name);
3245     if(!codec) {
3246         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3247         ffmpeg_exit(1);
3248     }
3249     if(codec->type != type) {
3250         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3251         ffmpeg_exit(1);
3252     }
3253     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3254        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3255         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3256                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3257                 codec_string, codec->name);
3258         codec = encoder ?
3259             avcodec_find_encoder(codec->id) :
3260             avcodec_find_decoder(codec->id);
3261         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3262             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3263                     codec_string, codec->name);
3264         ffmpeg_exit(1);
3265     }
3266     return codec->id;
3267 }
3268
3269 static int opt_input_file(const char *opt, const char *filename)
3270 {
3271     AVFormatContext *ic;
3272     AVFormatParameters params, *ap = &params;
3273     AVInputFormat *file_iformat = NULL;
3274     int err, i, ret, rfps, rfps_base;
3275     int64_t timestamp;
3276
3277     if (last_asked_format) {
3278         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3279             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3280             ffmpeg_exit(1);
3281         }
3282         last_asked_format = NULL;
3283     }
3284
3285     if (!strcmp(filename, "-"))
3286         filename = "pipe:";
3287
3288     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3289                     !strcmp(filename, "/dev/stdin");
3290
3291     /* get default parameters from command line */
3292     ic = avformat_alloc_context();
3293     if (!ic) {
3294         print_error(filename, AVERROR(ENOMEM));
3295         ffmpeg_exit(1);
3296     }
3297
3298     memset(ap, 0, sizeof(*ap));
3299     ap->prealloced_context = 1;
3300     ap->sample_rate = audio_sample_rate;
3301     ap->channels = audio_channels;
3302     ap->time_base.den = frame_rate.num;
3303     ap->time_base.num = frame_rate.den;
3304     ap->width = frame_width;
3305     ap->height = frame_height;
3306     ap->pix_fmt = frame_pix_fmt;
3307    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3308     ap->channel = video_channel;
3309     ap->standard = video_standard;
3310
3311     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3312
3313     ic->video_codec_id   =
3314         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3315                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3316     ic->audio_codec_id   =
3317         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3318                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3319     ic->subtitle_codec_id=
3320         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3321                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3322     ic->flags |= AVFMT_FLAG_NONBLOCK | AVFMT_FLAG_PRIV_OPT;
3323
3324     /* open the input file with generic libav function */
3325     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3326     if(err >= 0){
3327         set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3328         err = av_demuxer_open(ic, ap);
3329         if(err < 0)
3330             avformat_free_context(ic);
3331     }
3332     if (err < 0) {
3333         print_error(filename, err);
3334         ffmpeg_exit(1);
3335     }
3336     if(opt_programid) {
3337         int i, j;
3338         int found=0;
3339         for(i=0; i<ic->nb_streams; i++){
3340             ic->streams[i]->discard= AVDISCARD_ALL;
3341         }
3342         for(i=0; i<ic->nb_programs; i++){
3343             AVProgram *p= ic->programs[i];
3344             if(p->id != opt_programid){
3345                 p->discard = AVDISCARD_ALL;
3346             }else{
3347                 found=1;
3348                 for(j=0; j<p->nb_stream_indexes; j++){
3349                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3350                 }
3351             }
3352         }
3353         if(!found){
3354             fprintf(stderr, "Specified program id not found\n");
3355             ffmpeg_exit(1);
3356         }
3357         opt_programid=0;
3358     }
3359
3360     if (loop_input) {
3361         av_log(NULL, AV_LOG_WARNING, "-loop_input is deprecated, use -loop 1\n");
3362         ic->loop_input = loop_input;
3363     }
3364
3365     /* If not enough info to get the stream parameters, we decode the
3366        first frames to get it. (used in mpeg case for example) */
3367     ret = av_find_stream_info(ic);
3368     if (ret < 0 && verbose >= 0) {
3369         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3370         av_close_input_file(ic);
3371         ffmpeg_exit(1);
3372     }
3373
3374     timestamp = start_time;
3375     /* add the stream start time */
3376     if (ic->start_time != AV_NOPTS_VALUE)
3377         timestamp += ic->start_time;
3378
3379     /* if seeking requested, we execute it */
3380     if (start_time != 0) {
3381         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3382         if (ret < 0) {
3383             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3384                     filename, (double)timestamp / AV_TIME_BASE);
3385         }
3386         /* reset seek info */
3387         start_time = 0;
3388     }
3389
3390     /* update the current parameters so that they match the one of the input stream */
3391     for(i=0;i<ic->nb_streams;i++) {
3392         AVStream *st = ic->streams[i];
3393         AVCodecContext *dec = st->codec;
3394         InputStream *ist;
3395
3396         dec->thread_count = thread_count;
3397
3398         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3399         ist = &input_streams[nb_input_streams - 1];
3400         ist->st = st;
3401         ist->file_index = nb_input_files;
3402         ist->discard = 1;
3403
3404         switch (dec->codec_type) {
3405         case AVMEDIA_TYPE_AUDIO:
3406             ist->dec = avcodec_find_decoder_by_name(audio_codec_name);
3407             if(!ist->dec)
3408                 ist->dec = avcodec_find_decoder(dec->codec_id);
3409             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, ist->dec);
3410             channel_layout    = dec->channel_layout;
3411             audio_sample_fmt  = dec->sample_fmt;
3412             if(audio_disable)
3413                 st->discard= AVDISCARD_ALL;
3414             break;
3415         case AVMEDIA_TYPE_VIDEO:
3416             ist->dec= avcodec_find_decoder_by_name(video_codec_name);
3417             if(!ist->dec)
3418                 ist->dec = avcodec_find_decoder(dec->codec_id);
3419             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, ist->dec);
3420             rfps      = ic->streams[i]->r_frame_rate.num;
3421             rfps_base = ic->streams[i]->r_frame_rate.den;
3422             if (dec->lowres) {
3423                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3424                 dec->height >>= dec->lowres;
3425                 dec->width  >>= dec->lowres;
3426             }
3427             if(me_threshold)
3428                 dec->debug |= FF_DEBUG_MV;
3429
3430             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3431
3432                 if (verbose >= 0)
3433                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3434                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3435
3436                     (float)rfps / rfps_base, rfps, rfps_base);
3437             }
3438
3439             if(video_disable)
3440                 st->discard= AVDISCARD_ALL;
3441             else if(video_discard)
3442                 st->discard= video_discard;
3443             break;
3444         case AVMEDIA_TYPE_DATA:
3445             break;
3446         case AVMEDIA_TYPE_SUBTITLE:
3447             ist->dec = avcodec_find_decoder_by_name(subtitle_codec_name);
3448             if(!ist->dec)
3449                 ist->dec = avcodec_find_decoder(dec->codec_id);
3450             if(subtitle_disable)
3451                 st->discard = AVDISCARD_ALL;
3452             break;
3453         case AVMEDIA_TYPE_ATTACHMENT:
3454         case AVMEDIA_TYPE_UNKNOWN:
3455             break;
3456         default:
3457             abort();
3458         }
3459     }
3460
3461     /* dump the file content */
3462     if (verbose >= 0)
3463         av_dump_format(ic, nb_input_files, filename, 0);
3464
3465     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3466     input_files[nb_input_files - 1].ctx        = ic;
3467     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3468     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3469
3470     top_field_first = -1;
3471     video_channel = 0;
3472     frame_rate    = (AVRational){0, 0};
3473     frame_pix_fmt = PIX_FMT_NONE;
3474     frame_height = 0;
3475     frame_width  = 0;
3476     audio_sample_rate = 0;
3477     audio_channels    = 0;
3478
3479     av_freep(&video_codec_name);
3480     av_freep(&audio_codec_name);
3481     av_freep(&subtitle_codec_name);
3482     uninit_opts();
3483     init_opts();
3484     return 0;
3485 }
3486
3487 static void check_inputs(int *has_video_ptr,
3488                          int *has_audio_ptr,
3489                          int *has_subtitle_ptr,
3490                          int *has_data_ptr)
3491 {
3492     int has_video, has_audio, has_subtitle, has_data, i, j;
3493     AVFormatContext *ic;
3494
3495     has_video = 0;
3496     has_audio = 0;
3497     has_subtitle = 0;
3498     has_data = 0;
3499
3500     for(j=0;j<nb_input_files;j++) {
3501         ic = input_files[j].ctx;
3502         for(i=0;i<ic->nb_streams;i++) {
3503             AVCodecContext *enc = ic->streams[i]->codec;
3504             switch(enc->codec_type) {
3505             case AVMEDIA_TYPE_AUDIO:
3506                 has_audio = 1;
3507                 break;
3508             case AVMEDIA_TYPE_VIDEO:
3509                 has_video = 1;
3510                 break;
3511             case AVMEDIA_TYPE_SUBTITLE:
3512                 has_subtitle = 1;
3513                 break;
3514             case AVMEDIA_TYPE_DATA:
3515             case AVMEDIA_TYPE_ATTACHMENT:
3516             case AVMEDIA_TYPE_UNKNOWN:
3517                 has_data = 1;
3518                 break;
3519             default:
3520                 abort();
3521             }
3522         }
3523     }
3524     *has_video_ptr = has_video;
3525     *has_audio_ptr = has_audio;
3526     *has_subtitle_ptr = has_subtitle;
3527     *has_data_ptr = has_data;
3528 }
3529
3530 static void new_video_stream(AVFormatContext *oc, int file_idx)
3531 {
3532     AVStream *st;
3533     OutputStream *ost;
3534     AVCodecContext *video_enc;
3535     enum CodecID codec_id = CODEC_ID_NONE;
3536     AVCodec *codec= NULL;
3537
3538     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3539     if (!st) {
3540         fprintf(stderr, "Could not alloc stream\n");
3541         ffmpeg_exit(1);
3542     }
3543     ost = new_output_stream(oc, file_idx);
3544
3545     if(!video_stream_copy){
3546         if (video_codec_name) {
3547             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3548                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3549             codec = avcodec_find_encoder_by_name(video_codec_name);
3550             ost->enc = codec;
3551         } else {
3552             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3553             codec = avcodec_find_encoder(codec_id);
3554         }
3555         ost->frame_aspect_ratio = frame_aspect_ratio;
3556         frame_aspect_ratio = 0;
3557 #if CONFIG_AVFILTER
3558         ost->avfilter = vfilters;
3559         vfilters = NULL;
3560 #endif
3561     }
3562
3563     avcodec_get_context_defaults3(st->codec, codec);
3564     ost->bitstream_filters = video_bitstream_filters;
3565     video_bitstream_filters= NULL;
3566
3567     st->codec->thread_count= thread_count;
3568
3569     video_enc = st->codec;
3570
3571     if(video_codec_tag)
3572         video_enc->codec_tag= video_codec_tag;
3573
3574     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3575         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3576         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3577     }
3578
3579     if (video_stream_copy) {
3580         st->stream_copy = 1;
3581         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3582         video_enc->sample_aspect_ratio =
3583         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3584     } else {
3585         const char *p;
3586         int i;
3587
3588         if (frame_rate.num)
3589             ost->frame_rate = frame_rate;
3590         video_enc->codec_id = codec_id;
3591         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3592
3593         video_enc->width = frame_width;
3594         video_enc->height = frame_height;
3595         video_enc->pix_fmt = frame_pix_fmt;
3596         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3597         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3598
3599         if (intra_only)
3600             video_enc->gop_size = 0;
3601         if (video_qscale || same_quality) {
3602             video_enc->flags |= CODEC_FLAG_QSCALE;
3603             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3604         }
3605
3606         if(intra_matrix)
3607             video_enc->intra_matrix = intra_matrix;
3608         if(inter_matrix)
3609             video_enc->inter_matrix = inter_matrix;
3610
3611         p= video_rc_override_string;
3612         for(i=0; p; i++){
3613             int start, end, q;
3614             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3615             if(e!=3){
3616                 fprintf(stderr, "error parsing rc_override\n");
3617                 ffmpeg_exit(1);
3618             }
3619             video_enc->rc_override=
3620                 av_realloc(video_enc->rc_override,
3621                            sizeof(RcOverride)*(i+1));
3622             video_enc->rc_override[i].start_frame= start;
3623             video_enc->rc_override[i].end_frame  = end;
3624             if(q>0){
3625                 video_enc->rc_override[i].qscale= q;