vsink_buffer: fix void pointer dereference in av_vsink_buffer_get_video_buffer_ref()
[ffmpeg.git] / avconv.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[] = "avconv";
90 const int program_birth_year = 2000;
91
92 /* select an input stream for an output stream */
93 typedef struct StreamMap {
94     int disabled;           /** 1 is this mapping is disabled by a negative map */
95     int file_index;
96     int stream_index;
97     int sync_file_index;
98     int sync_stream_index;
99 } StreamMap;
100
101 /**
102  * select an input file for an output file
103  */
104 typedef struct MetadataMap {
105     int  file;      ///< file index
106     char type;      ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
107     int  index;     ///< stream/chapter/program number
108 } MetadataMap;
109
110 static const OptionDef options[];
111
112 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
113 static const char *last_asked_format = NULL;
114 static AVDictionary *ts_scale;
115
116 static StreamMap *stream_maps = NULL;
117 static int nb_stream_maps;
118
119 static AVDictionary *codec_names;
120
121 /* first item specifies output metadata, second is input */
122 static MetadataMap (*meta_data_maps)[2] = NULL;
123 static int nb_meta_data_maps;
124 static int metadata_global_autocopy   = 1;
125 static int metadata_streams_autocopy  = 1;
126 static int metadata_chapters_autocopy = 1;
127
128 static int chapters_input_file = INT_MAX;
129
130 /* indexed by output file stream index */
131 static int *streamid_map = NULL;
132 static int nb_streamid_map = 0;
133
134 static int frame_width  = 0;
135 static int frame_height = 0;
136 static float frame_aspect_ratio = 0;
137 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
138 static int frame_bits_per_raw_sample = 0;
139 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
140 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
141 static AVRational frame_rate;
142 static float video_qscale = 0;
143 static uint16_t *intra_matrix = NULL;
144 static uint16_t *inter_matrix = NULL;
145 static const char *video_rc_override_string=NULL;
146 static int video_disable = 0;
147 static int video_discard = 0;
148 static unsigned int video_codec_tag = 0;
149 static char *video_language = NULL;
150 static int same_quant = 0;
151 static int do_deinterlace = 0;
152 static int top_field_first = -1;
153 static int me_threshold = 0;
154 static int intra_dc_precision = 8;
155 static int qp_hist = 0;
156 #if CONFIG_AVFILTER
157 static char *vfilters = NULL;
158 #endif
159
160 static int audio_sample_rate = 0;
161 #define QSCALE_NONE -99999
162 static float audio_qscale = QSCALE_NONE;
163 static int audio_disable = 0;
164 static int audio_channels = 0;
165 static unsigned int audio_codec_tag = 0;
166 static char *audio_language = NULL;
167
168 static int subtitle_disable = 0;
169 static char *subtitle_language = NULL;
170 static unsigned int subtitle_codec_tag = 0;
171
172 static int data_disable = 0;
173 static unsigned int data_codec_tag = 0;
174
175 static float mux_preload= 0.5;
176 static float mux_max_delay= 0.7;
177
178 static int64_t recording_time = INT64_MAX;
179 static int64_t start_time = 0;
180 static int64_t input_ts_offset = 0;
181 static int file_overwrite = 0;
182 static AVDictionary *metadata;
183 static int do_benchmark = 0;
184 static int do_hex_dump = 0;
185 static int do_pkt_dump = 0;
186 static int do_psnr = 0;
187 static int do_pass = 0;
188 static const char *pass_logfilename_prefix;
189 static int video_sync_method= -1;
190 static int audio_sync_method= 0;
191 static float audio_drift_threshold= 0.1;
192 static int copy_ts= 0;
193 static int copy_tb= 0;
194 static int opt_shortest = 0;
195 static char *vstats_filename;
196 static FILE *vstats_file;
197 static int opt_programid = 0;
198 static int copy_initial_nonkeyframes = 0;
199
200 static int rate_emu = 0;
201
202 static int audio_volume = 256;
203
204 static int exit_on_error = 0;
205 static int using_stdin = 0;
206 static int verbose = 1;
207 static int run_as_daemon  = 0;
208 static int thread_count= 1;
209 static int q_pressed = 0;
210 static int64_t video_size = 0;
211 static int64_t audio_size = 0;
212 static int64_t extra_size = 0;
213 static int nb_frames_dup = 0;
214 static int nb_frames_drop = 0;
215 static int input_sync;
216 static uint64_t limit_filesize = UINT64_MAX;
217 static int force_fps = 0;
218 static char *forced_key_frames = NULL;
219
220 static float dts_delta_threshold = 10;
221
222 static uint8_t *audio_buf;
223 static uint8_t *audio_out;
224 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
225
226 static short *samples;
227
228 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
229 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
230 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
231
232 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
233
234 typedef struct InputStream {
235     int file_index;
236     AVStream *st;
237     int discard;             /* true if stream data should be discarded */
238     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
239     AVCodec *dec;
240
241     int64_t       start;     /* time when read started */
242     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
243                                 is not defined */
244     int64_t       pts;       /* current pts */
245     double ts_scale;
246     int is_start;            /* is 1 at the start and after a discontinuity */
247     int showed_multi_packet_warning;
248     AVDictionary *opts;
249 } InputStream;
250
251 typedef struct InputFile {
252     AVFormatContext *ctx;
253     int eof_reached;      /* true if eof reached */
254     int ist_index;        /* index of first stream in ist_table */
255     int buffer_size;      /* current total buffer size */
256     int64_t ts_offset;
257     int nb_streams;       /* number of stream that avconv is aware of; may be different
258                              from ctx.nb_streams if new streams appear during av_read_frame() */
259 } InputFile;
260
261 typedef struct OutputStream {
262     int file_index;          /* file index */
263     int index;               /* stream index in the output file */
264     int source_index;        /* InputStream index */
265     AVStream *st;            /* stream in the output file */
266     int encoding_needed;     /* true if encoding needed for this stream */
267     int frame_number;
268     /* input pts and corresponding output pts
269        for A/V sync */
270     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
271     struct InputStream *sync_ist; /* input stream to sync against */
272     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
273     AVBitStreamFilterContext *bitstream_filters;
274     AVCodec *enc;
275
276     /* video only */
277     int video_resample;
278     AVFrame resample_frame;              /* temporary frame for image resampling */
279     struct SwsContext *img_resample_ctx; /* for image resampling */
280     int resample_height;
281     int resample_width;
282     int resample_pix_fmt;
283     AVRational frame_rate;
284
285     float frame_aspect_ratio;
286
287     /* forced key frames */
288     int64_t *forced_kf_pts;
289     int forced_kf_count;
290     int forced_kf_index;
291
292     /* audio only */
293     int audio_resample;
294     ReSampleContext *resample; /* for audio resampling */
295     int resample_sample_fmt;
296     int resample_channels;
297     int resample_sample_rate;
298     int reformat_pair;
299     AVAudioConvert *reformat_ctx;
300     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
301     FILE *logfile;
302
303 #if CONFIG_AVFILTER
304     AVFilterContext *output_video_filter;
305     AVFilterContext *input_video_filter;
306     AVFilterBufferRef *picref;
307     char *avfilter;
308     AVFilterGraph *graph;
309 #endif
310
311    int sws_flags;
312    AVDictionary *opts;
313    int is_past_recording_time;
314 } OutputStream;
315
316 #if HAVE_TERMIOS_H
317
318 /* init terminal so that we can grab keys */
319 static struct termios oldtty;
320 #endif
321
322 typedef struct OutputFile {
323     AVFormatContext *ctx;
324     AVDictionary *opts;
325     int ost_index;       /* index of the first stream in output_streams */
326     int64_t recording_time; /* desired length of the resulting file in microseconds */
327     int64_t start_time;     /* start time in microseconds */
328     uint64_t limit_filesize;
329 } OutputFile;
330
331 static InputStream *input_streams = NULL;
332 static int         nb_input_streams = 0;
333 static InputFile   *input_files   = NULL;
334 static int         nb_input_files   = 0;
335
336 static OutputStream *output_streams = NULL;
337 static int        nb_output_streams = 0;
338 static OutputFile   *output_files   = NULL;
339 static int        nb_output_files   = 0;
340
341 #if CONFIG_AVFILTER
342
343 static int configure_video_filters(InputStream *ist, OutputStream *ost)
344 {
345     AVFilterContext *last_filter, *filter;
346     /** filter graph containing all filters including input & output */
347     AVCodecContext *codec = ost->st->codec;
348     AVCodecContext *icodec = ist->st->codec;
349     enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE };
350     AVRational sample_aspect_ratio;
351     char args[255];
352     int ret;
353
354     ost->graph = avfilter_graph_alloc();
355
356     if (ist->st->sample_aspect_ratio.num){
357         sample_aspect_ratio = ist->st->sample_aspect_ratio;
358     }else
359         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
360
361     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
362              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
363              sample_aspect_ratio.num, sample_aspect_ratio.den);
364
365     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
366                                        "src", args, NULL, ost->graph);
367     if (ret < 0)
368         return ret;
369     ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
370                                        "out", NULL, pix_fmts, ost->graph);
371     if (ret < 0)
372         return ret;
373     last_filter = ost->input_video_filter;
374
375     if (codec->width  != icodec->width || codec->height != icodec->height) {
376         snprintf(args, 255, "%d:%d:flags=0x%X",
377                  codec->width,
378                  codec->height,
379                  ost->sws_flags);
380         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
381                                                 NULL, args, NULL, ost->graph)) < 0)
382             return ret;
383         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
384             return ret;
385         last_filter = filter;
386     }
387
388     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
389     ost->graph->scale_sws_opts = av_strdup(args);
390
391     if (ost->avfilter) {
392         AVFilterInOut *outputs = avfilter_inout_alloc();
393         AVFilterInOut *inputs  = avfilter_inout_alloc();
394
395         outputs->name    = av_strdup("in");
396         outputs->filter_ctx = last_filter;
397         outputs->pad_idx = 0;
398         outputs->next    = NULL;
399
400         inputs->name    = av_strdup("out");
401         inputs->filter_ctx = ost->output_video_filter;
402         inputs->pad_idx = 0;
403         inputs->next    = NULL;
404
405         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0)
406             return ret;
407         av_freep(&ost->avfilter);
408     } else {
409         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
410             return ret;
411     }
412
413     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
414         return ret;
415
416     codec->width  = ost->output_video_filter->inputs[0]->w;
417     codec->height = ost->output_video_filter->inputs[0]->h;
418     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
419         ost->frame_aspect_ratio ? // overridden by the -aspect cli option
420         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
421         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
422
423     return 0;
424 }
425 #endif /* CONFIG_AVFILTER */
426
427 static void term_exit(void)
428 {
429     av_log(NULL, AV_LOG_QUIET, "%s", "");
430 #if HAVE_TERMIOS_H
431     if(!run_as_daemon)
432         tcsetattr (0, TCSANOW, &oldtty);
433 #endif
434 }
435
436 static volatile int received_sigterm = 0;
437
438 static void
439 sigterm_handler(int sig)
440 {
441     received_sigterm = sig;
442     q_pressed++;
443     term_exit();
444 }
445
446 static void term_init(void)
447 {
448 #if HAVE_TERMIOS_H
449     if(!run_as_daemon){
450     struct termios tty;
451
452     tcgetattr (0, &tty);
453     oldtty = tty;
454     atexit(term_exit);
455
456     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
457                           |INLCR|IGNCR|ICRNL|IXON);
458     tty.c_oflag |= OPOST;
459     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
460     tty.c_cflag &= ~(CSIZE|PARENB);
461     tty.c_cflag |= CS8;
462     tty.c_cc[VMIN] = 1;
463     tty.c_cc[VTIME] = 0;
464
465     tcsetattr (0, TCSANOW, &tty);
466     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
467     }
468 #endif
469
470     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
471     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
472 #ifdef SIGXCPU
473     signal(SIGXCPU, sigterm_handler);
474 #endif
475 }
476
477 /* read a key without blocking */
478 static int read_key(void)
479 {
480 #if HAVE_TERMIOS_H
481     int n = 1;
482     unsigned char ch;
483     struct timeval tv;
484     fd_set rfds;
485
486     if(run_as_daemon)
487         return -1;
488
489     FD_ZERO(&rfds);
490     FD_SET(0, &rfds);
491     tv.tv_sec = 0;
492     tv.tv_usec = 0;
493     n = select(1, &rfds, NULL, NULL, &tv);
494     if (n > 0) {
495         n = read(0, &ch, 1);
496         if (n == 1)
497             return ch;
498
499         return n;
500     }
501 #elif HAVE_KBHIT
502     if(kbhit())
503         return(getch());
504 #endif
505     return -1;
506 }
507
508 static int decode_interrupt_cb(void)
509 {
510     q_pressed += read_key() == 'q';
511     return q_pressed > 1;
512 }
513
514 static int exit_program(int ret)
515 {
516     int i;
517
518     /* close files */
519     for(i=0;i<nb_output_files;i++) {
520         AVFormatContext *s = output_files[i].ctx;
521         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
522             avio_close(s->pb);
523         avformat_free_context(s);
524         av_dict_free(&output_files[i].opts);
525     }
526     for(i=0;i<nb_input_files;i++) {
527         av_close_input_file(input_files[i].ctx);
528     }
529     for (i = 0; i < nb_input_streams; i++)
530         av_dict_free(&input_streams[i].opts);
531
532     av_free(intra_matrix);
533     av_free(inter_matrix);
534
535     if (vstats_file)
536         fclose(vstats_file);
537     av_free(vstats_filename);
538
539     av_free(meta_data_maps);
540
541     av_freep(&input_streams);
542     av_freep(&input_files);
543     av_freep(&output_streams);
544     av_freep(&output_files);
545
546     uninit_opts();
547     av_free(audio_buf);
548     av_free(audio_out);
549     allocated_audio_buf_size= allocated_audio_out_size= 0;
550     av_free(samples);
551
552 #if CONFIG_AVFILTER
553     avfilter_uninit();
554 #endif
555
556     if (received_sigterm) {
557         fprintf(stderr,
558             "Received signal %d: terminating.\n",
559             (int) received_sigterm);
560         exit (255);
561     }
562
563     exit(ret); /* not all OS-es handle main() return value */
564     return ret;
565 }
566
567 static void assert_avoptions(AVDictionary *m)
568 {
569     AVDictionaryEntry *t;
570     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
571         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
572         exit_program(1);
573     }
574 }
575
576 static void assert_codec_experimental(AVCodecContext *c, int encoder)
577 {
578     const char *codec_string = encoder ? "encoder" : "decoder";
579     AVCodec *codec;
580     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
581         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
582         av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
583                 "results.\nAdd '-strict experimental' if you want to use it.\n",
584                 codec_string, c->codec->name);
585         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
586         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
587             av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
588                    codec_string, codec->name);
589         exit_program(1);
590     }
591 }
592
593 /* similar to ff_dynarray_add() and av_fast_realloc() */
594 static void *grow_array(void *array, int elem_size, int *size, int new_size)
595 {
596     if (new_size >= INT_MAX / elem_size) {
597         fprintf(stderr, "Array too big.\n");
598         exit_program(1);
599     }
600     if (*size < new_size) {
601         uint8_t *tmp = av_realloc(array, new_size*elem_size);
602         if (!tmp) {
603             fprintf(stderr, "Could not alloc buffer.\n");
604             exit_program(1);
605         }
606         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
607         *size = new_size;
608         return tmp;
609     }
610     return array;
611 }
612
613 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
614 {
615     if(codec && codec->sample_fmts){
616         const enum AVSampleFormat *p= codec->sample_fmts;
617         for(; *p!=-1; p++){
618             if(*p == st->codec->sample_fmt)
619                 break;
620         }
621         if (*p == -1) {
622             if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
623                 av_log(NULL, AV_LOG_ERROR, "Convertion will not be lossless'\n");
624             if(av_get_sample_fmt_name(st->codec->sample_fmt))
625             av_log(NULL, AV_LOG_WARNING,
626                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
627                    av_get_sample_fmt_name(st->codec->sample_fmt),
628                    codec->name,
629                    av_get_sample_fmt_name(codec->sample_fmts[0]));
630             st->codec->sample_fmt = codec->sample_fmts[0];
631         }
632     }
633 }
634
635 static void choose_sample_rate(AVStream *st, AVCodec *codec)
636 {
637     if(codec && codec->supported_samplerates){
638         const int *p= codec->supported_samplerates;
639         int best=0;
640         int best_dist=INT_MAX;
641         for(; *p; p++){
642             int dist= abs(st->codec->sample_rate - *p);
643             if(dist < best_dist){
644                 best_dist= dist;
645                 best= *p;
646             }
647         }
648         if(best_dist){
649             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
650         }
651         st->codec->sample_rate= best;
652     }
653 }
654
655 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
656 {
657     if(codec && codec->pix_fmts){
658         const enum PixelFormat *p= codec->pix_fmts;
659         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
660             if(st->codec->codec_id==CODEC_ID_MJPEG){
661                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
662             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
663                 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};
664             }
665         }
666         for(; *p!=-1; p++){
667             if(*p == st->codec->pix_fmt)
668                 break;
669         }
670         if (*p == -1) {
671             if(st->codec->pix_fmt != PIX_FMT_NONE)
672                 av_log(NULL, AV_LOG_WARNING,
673                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
674                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
675                         codec->name,
676                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
677             st->codec->pix_fmt = codec->pix_fmts[0];
678         }
679     }
680 }
681
682 static double
683 get_sync_ipts(const OutputStream *ost)
684 {
685     const InputStream *ist = ost->sync_ist;
686     OutputFile *of = &output_files[ost->file_index];
687     return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
688 }
689
690 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
691     int ret;
692
693     while(bsfc){
694         AVPacket new_pkt= *pkt;
695         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
696                                           &new_pkt.data, &new_pkt.size,
697                                           pkt->data, pkt->size,
698                                           pkt->flags & AV_PKT_FLAG_KEY);
699         if(a>0){
700             av_free_packet(pkt);
701             new_pkt.destruct= av_destruct_packet;
702         } else if(a<0){
703             fprintf(stderr, "%s failed for stream %d, codec %s",
704                     bsfc->filter->name, pkt->stream_index,
705                     avctx->codec ? avctx->codec->name : "copy");
706             print_error("", a);
707             if (exit_on_error)
708                 exit_program(1);
709         }
710         *pkt= new_pkt;
711
712         bsfc= bsfc->next;
713     }
714
715     ret= av_interleaved_write_frame(s, pkt);
716     if(ret < 0){
717         print_error("av_interleaved_write_frame()", ret);
718         exit_program(1);
719     }
720 }
721
722 static void do_audio_out(AVFormatContext *s,
723                          OutputStream *ost,
724                          InputStream *ist,
725                          unsigned char *buf, int size)
726 {
727     uint8_t *buftmp;
728     int64_t audio_out_size, audio_buf_size;
729     int64_t allocated_for_size= size;
730
731     int size_out, frame_bytes, ret, resample_changed;
732     AVCodecContext *enc= ost->st->codec;
733     AVCodecContext *dec= ist->st->codec;
734     int osize = av_get_bytes_per_sample(enc->sample_fmt);
735     int isize = av_get_bytes_per_sample(dec->sample_fmt);
736     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
737
738 need_realloc:
739     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
740     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
741     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
742     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
743     audio_buf_size*= osize*enc->channels;
744
745     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
746     if(coded_bps > 8*osize)
747         audio_out_size= audio_out_size * coded_bps / (8*osize);
748     audio_out_size += FF_MIN_BUFFER_SIZE;
749
750     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
751         fprintf(stderr, "Buffer sizes too large\n");
752         exit_program(1);
753     }
754
755     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
756     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
757     if (!audio_buf || !audio_out){
758         fprintf(stderr, "Out of memory in do_audio_out\n");
759         exit_program(1);
760     }
761
762     if (enc->channels != dec->channels)
763         ost->audio_resample = 1;
764
765     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
766                        ost->resample_channels    != dec->channels   ||
767                        ost->resample_sample_rate != dec->sample_rate;
768
769     if ((ost->audio_resample && !ost->resample) || resample_changed) {
770         if (resample_changed) {
771             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",
772                    ist->file_index, ist->st->index,
773                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
774                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
775             ost->resample_sample_fmt  = dec->sample_fmt;
776             ost->resample_channels    = dec->channels;
777             ost->resample_sample_rate = dec->sample_rate;
778             if (ost->resample)
779                 audio_resample_close(ost->resample);
780         }
781         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
782         if (audio_sync_method <= 1 &&
783             ost->resample_sample_fmt  == enc->sample_fmt &&
784             ost->resample_channels    == enc->channels   &&
785             ost->resample_sample_rate == enc->sample_rate) {
786             ost->resample = NULL;
787             ost->audio_resample = 0;
788         } else {
789             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
790                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
791             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
792                                                    enc->sample_rate, dec->sample_rate,
793                                                    enc->sample_fmt,  dec->sample_fmt,
794                                                    16, 10, 0, 0.8);
795             if (!ost->resample) {
796                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
797                         dec->channels, dec->sample_rate,
798                         enc->channels, enc->sample_rate);
799                 exit_program(1);
800             }
801         }
802     }
803
804 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
805     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
806         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
807         if (ost->reformat_ctx)
808             av_audio_convert_free(ost->reformat_ctx);
809         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
810                                                    dec->sample_fmt, 1, NULL, 0);
811         if (!ost->reformat_ctx) {
812             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
813                 av_get_sample_fmt_name(dec->sample_fmt),
814                 av_get_sample_fmt_name(enc->sample_fmt));
815             exit_program(1);
816         }
817         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
818     }
819
820     if(audio_sync_method){
821         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
822                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
823         double idelta= delta*dec->sample_rate / enc->sample_rate;
824         int byte_delta= ((int)idelta)*2*dec->channels;
825
826         //FIXME resample delay
827         if(fabs(delta) > 50){
828             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
829                 if(byte_delta < 0){
830                     byte_delta= FFMAX(byte_delta, -size);
831                     size += byte_delta;
832                     buf  -= byte_delta;
833                     if(verbose > 2)
834                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
835                     if(!size)
836                         return;
837                     ist->is_start=0;
838                 }else{
839                     static uint8_t *input_tmp= NULL;
840                     input_tmp= av_realloc(input_tmp, byte_delta + size);
841
842                     if(byte_delta > allocated_for_size - size){
843                         allocated_for_size= byte_delta + (int64_t)size;
844                         goto need_realloc;
845                     }
846                     ist->is_start=0;
847
848                     memset(input_tmp, 0, byte_delta);
849                     memcpy(input_tmp + byte_delta, buf, size);
850                     buf= input_tmp;
851                     size += byte_delta;
852                     if(verbose > 2)
853                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
854                 }
855             }else if(audio_sync_method>1){
856                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
857                 av_assert0(ost->audio_resample);
858                 if(verbose > 2)
859                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
860 //                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));
861                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
862             }
863         }
864     }else
865         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
866                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
867
868     if (ost->audio_resample) {
869         buftmp = audio_buf;
870         size_out = audio_resample(ost->resample,
871                                   (short *)buftmp, (short *)buf,
872                                   size / (dec->channels * isize));
873         size_out = size_out * enc->channels * osize;
874     } else {
875         buftmp = buf;
876         size_out = size;
877     }
878
879     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
880         const void *ibuf[6]= {buftmp};
881         void *obuf[6]= {audio_buf};
882         int istride[6]= {isize};
883         int ostride[6]= {osize};
884         int len= size_out/istride[0];
885         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
886             printf("av_audio_convert() failed\n");
887             if (exit_on_error)
888                 exit_program(1);
889             return;
890         }
891         buftmp = audio_buf;
892         size_out = len*osize;
893     }
894
895     /* now encode as many frames as possible */
896     if (enc->frame_size > 1) {
897         /* output resampled raw samples */
898         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
899             fprintf(stderr, "av_fifo_realloc2() failed\n");
900             exit_program(1);
901         }
902         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
903
904         frame_bytes = enc->frame_size * osize * enc->channels;
905
906         while (av_fifo_size(ost->fifo) >= frame_bytes) {
907             AVPacket pkt;
908             av_init_packet(&pkt);
909
910             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
911
912             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
913
914             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
915                                        (short *)audio_buf);
916             if (ret < 0) {
917                 fprintf(stderr, "Audio encoding failed\n");
918                 exit_program(1);
919             }
920             audio_size += ret;
921             pkt.stream_index= ost->index;
922             pkt.data= audio_out;
923             pkt.size= ret;
924             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
925                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
926             pkt.flags |= AV_PKT_FLAG_KEY;
927             write_frame(s, &pkt, enc, ost->bitstream_filters);
928
929             ost->sync_opts += enc->frame_size;
930         }
931     } else {
932         AVPacket pkt;
933         av_init_packet(&pkt);
934
935         ost->sync_opts += size_out / (osize * enc->channels);
936
937         /* output a pcm frame */
938         /* determine the size of the coded buffer */
939         size_out /= osize;
940         if (coded_bps)
941             size_out = size_out*coded_bps/8;
942
943         if(size_out > audio_out_size){
944             fprintf(stderr, "Internal error, buffer size too small\n");
945             exit_program(1);
946         }
947
948         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
949         ret = avcodec_encode_audio(enc, audio_out, size_out,
950                                    (short *)buftmp);
951         if (ret < 0) {
952             fprintf(stderr, "Audio encoding failed\n");
953             exit_program(1);
954         }
955         audio_size += ret;
956         pkt.stream_index= ost->index;
957         pkt.data= audio_out;
958         pkt.size= ret;
959         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
960             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
961         pkt.flags |= AV_PKT_FLAG_KEY;
962         write_frame(s, &pkt, enc, ost->bitstream_filters);
963     }
964 }
965
966 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
967 {
968     AVCodecContext *dec;
969     AVPicture *picture2;
970     AVPicture picture_tmp;
971     uint8_t *buf = 0;
972
973     dec = ist->st->codec;
974
975     /* deinterlace : must be done before any resize */
976     if (do_deinterlace) {
977         int size;
978
979         /* create temporary picture */
980         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
981         buf = av_malloc(size);
982         if (!buf)
983             return;
984
985         picture2 = &picture_tmp;
986         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
987
988         if(avpicture_deinterlace(picture2, picture,
989                                  dec->pix_fmt, dec->width, dec->height) < 0) {
990             /* if error, do not deinterlace */
991             fprintf(stderr, "Deinterlacing failed\n");
992             av_free(buf);
993             buf = NULL;
994             picture2 = picture;
995         }
996     } else {
997         picture2 = picture;
998     }
999
1000     if (picture != picture2)
1001         *picture = *picture2;
1002     *bufp = buf;
1003 }
1004
1005 static void do_subtitle_out(AVFormatContext *s,
1006                             OutputStream *ost,
1007                             InputStream *ist,
1008                             AVSubtitle *sub,
1009                             int64_t pts)
1010 {
1011     static uint8_t *subtitle_out = NULL;
1012     int subtitle_out_max_size = 1024 * 1024;
1013     int subtitle_out_size, nb, i;
1014     AVCodecContext *enc;
1015     AVPacket pkt;
1016
1017     if (pts == AV_NOPTS_VALUE) {
1018         fprintf(stderr, "Subtitle packets must have a pts\n");
1019         if (exit_on_error)
1020             exit_program(1);
1021         return;
1022     }
1023
1024     enc = ost->st->codec;
1025
1026     if (!subtitle_out) {
1027         subtitle_out = av_malloc(subtitle_out_max_size);
1028     }
1029
1030     /* Note: DVB subtitle need one packet to draw them and one other
1031        packet to clear them */
1032     /* XXX: signal it in the codec context ? */
1033     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1034         nb = 2;
1035     else
1036         nb = 1;
1037
1038     for(i = 0; i < nb; i++) {
1039         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1040         // start_display_time is required to be 0
1041         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1042         sub->end_display_time -= sub->start_display_time;
1043         sub->start_display_time = 0;
1044         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1045                                                     subtitle_out_max_size, sub);
1046         if (subtitle_out_size < 0) {
1047             fprintf(stderr, "Subtitle encoding failed\n");
1048             exit_program(1);
1049         }
1050
1051         av_init_packet(&pkt);
1052         pkt.stream_index = ost->index;
1053         pkt.data = subtitle_out;
1054         pkt.size = subtitle_out_size;
1055         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1056         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1057             /* XXX: the pts correction is handled here. Maybe handling
1058                it in the codec would be better */
1059             if (i == 0)
1060                 pkt.pts += 90 * sub->start_display_time;
1061             else
1062                 pkt.pts += 90 * sub->end_display_time;
1063         }
1064         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1065     }
1066 }
1067
1068 static int bit_buffer_size= 1024*256;
1069 static uint8_t *bit_buffer= NULL;
1070
1071 static void do_video_resample(OutputStream *ost,
1072                               InputStream *ist,
1073                               AVFrame *in_picture,
1074                               AVFrame **out_picture)
1075 {
1076     int resample_changed = 0;
1077     AVCodecContext *dec = ist->st->codec;
1078     AVCodecContext *enc = ost->st->codec;
1079     *out_picture = in_picture;
1080
1081     resample_changed = ost->resample_width   != dec->width  ||
1082                        ost->resample_height  != dec->height ||
1083                        ost->resample_pix_fmt != dec->pix_fmt;
1084
1085 #if !CONFIG_AVFILTER
1086     if (resample_changed) {
1087         av_log(NULL, AV_LOG_INFO,
1088                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1089                ist->file_index, ist->st->index,
1090                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1091                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1092         ost->resample_width   = dec->width;
1093         ost->resample_height  = dec->height;
1094         ost->resample_pix_fmt = dec->pix_fmt;
1095     }
1096
1097     ost->video_resample = dec->width   != enc->width  ||
1098                           dec->height  != enc->height ||
1099                           dec->pix_fmt != enc->pix_fmt;
1100
1101     if (ost->video_resample) {
1102         *out_picture = &ost->resample_frame;
1103         if (!ost->img_resample_ctx || resample_changed) {
1104             /* initialize the destination picture */
1105             if (!ost->resample_frame.data[0]) {
1106                 avcodec_get_frame_defaults(&ost->resample_frame);
1107                 if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
1108                                     enc->width, enc->height)) {
1109                     fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1110                     exit_program(1);
1111                 }
1112             }
1113             /* initialize a new scaler context */
1114             sws_freeContext(ost->img_resample_ctx);
1115             ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt,
1116                                                    enc->width, enc->height, enc->pix_fmt,
1117                                                    ost->sws_flags, NULL, NULL, NULL);
1118             if (ost->img_resample_ctx == NULL) {
1119                 fprintf(stderr, "Cannot get resampling context\n");
1120                 exit_program(1);
1121             }
1122         }
1123         sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1124               0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1125     }
1126 #else
1127     if (resample_changed) {
1128         avfilter_graph_free(&ost->graph);
1129         if (configure_video_filters(ist, ost)) {
1130             fprintf(stderr, "Error reinitializing filters!\n");
1131             exit_program(1);
1132         }
1133     }
1134 #endif
1135     if (resample_changed) {
1136         ost->resample_width   = dec->width;
1137         ost->resample_height  = dec->height;
1138         ost->resample_pix_fmt = dec->pix_fmt;
1139     }
1140 }
1141
1142
1143 static void do_video_out(AVFormatContext *s,
1144                          OutputStream *ost,
1145                          InputStream *ist,
1146                          AVFrame *in_picture,
1147                          int *frame_size, float quality)
1148 {
1149     int nb_frames, i, ret, format_video_sync;
1150     AVFrame *final_picture;
1151     AVCodecContext *enc;
1152     double sync_ipts;
1153
1154     enc = ost->st->codec;
1155
1156     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1157
1158     /* by default, we output a single frame */
1159     nb_frames = 1;
1160
1161     *frame_size = 0;
1162
1163     format_video_sync = video_sync_method;
1164     if (format_video_sync < 0)
1165         format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1166
1167     if (format_video_sync) {
1168         double vdelta = sync_ipts - ost->sync_opts;
1169         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1170         if (vdelta < -1.1)
1171             nb_frames = 0;
1172         else if (format_video_sync == 2) {
1173             if(vdelta<=-0.6){
1174                 nb_frames=0;
1175             }else if(vdelta>0.6)
1176                 ost->sync_opts= lrintf(sync_ipts);
1177         }else if (vdelta > 1.1)
1178             nb_frames = lrintf(vdelta);
1179 //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);
1180         if (nb_frames == 0){
1181             ++nb_frames_drop;
1182             if (verbose>2)
1183                 fprintf(stderr, "*** drop!\n");
1184         }else if (nb_frames > 1) {
1185             nb_frames_dup += nb_frames - 1;
1186             if (verbose>2)
1187                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1188         }
1189     }else
1190         ost->sync_opts= lrintf(sync_ipts);
1191
1192     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1193     if (nb_frames <= 0)
1194         return;
1195
1196     do_video_resample(ost, ist, in_picture, &final_picture);
1197
1198     /* duplicates frame if needed */
1199     for(i=0;i<nb_frames;i++) {
1200         AVPacket pkt;
1201         av_init_packet(&pkt);
1202         pkt.stream_index= ost->index;
1203
1204         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1205             /* raw pictures are written as AVPicture structure to
1206                avoid any copies. We support temporarily the older
1207                method. */
1208             enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1209             enc->coded_frame->top_field_first  = in_picture->top_field_first;
1210             pkt.data= (uint8_t *)final_picture;
1211             pkt.size=  sizeof(AVPicture);
1212             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1213             pkt.flags |= AV_PKT_FLAG_KEY;
1214
1215             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1216         } else {
1217             AVFrame big_picture;
1218
1219             big_picture= *final_picture;
1220             /* better than nothing: use input picture interlaced
1221                settings */
1222             big_picture.interlaced_frame = in_picture->interlaced_frame;
1223             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1224                 if(top_field_first == -1)
1225                     big_picture.top_field_first = in_picture->top_field_first;
1226                 else
1227                     big_picture.top_field_first = top_field_first;
1228             }
1229
1230             /* handles same_quant here. This is not correct because it may
1231                not be a global option */
1232             big_picture.quality = quality;
1233             if(!me_threshold)
1234                 big_picture.pict_type = 0;
1235 //            big_picture.pts = AV_NOPTS_VALUE;
1236             big_picture.pts= ost->sync_opts;
1237 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1238 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1239             if (ost->forced_kf_index < ost->forced_kf_count &&
1240                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1241                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1242                 ost->forced_kf_index++;
1243             }
1244             ret = avcodec_encode_video(enc,
1245                                        bit_buffer, bit_buffer_size,
1246                                        &big_picture);
1247             if (ret < 0) {
1248                 fprintf(stderr, "Video encoding failed\n");
1249                 exit_program(1);
1250             }
1251
1252             if(ret>0){
1253                 pkt.data= bit_buffer;
1254                 pkt.size= ret;
1255                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1256                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1257 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1258    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1259    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1260
1261                 if(enc->coded_frame->key_frame)
1262                     pkt.flags |= AV_PKT_FLAG_KEY;
1263                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1264                 *frame_size = ret;
1265                 video_size += ret;
1266                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1267                 //        enc->frame_number-1, ret, enc->pict_type);
1268                 /* if two pass, output log */
1269                 if (ost->logfile && enc->stats_out) {
1270                     fprintf(ost->logfile, "%s", enc->stats_out);
1271                 }
1272             }
1273         }
1274         ost->sync_opts++;
1275         ost->frame_number++;
1276     }
1277 }
1278
1279 static double psnr(double d){
1280     return -10.0*log(d)/log(10.0);
1281 }
1282
1283 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1284                            int frame_size)
1285 {
1286     AVCodecContext *enc;
1287     int frame_number;
1288     double ti1, bitrate, avg_bitrate;
1289
1290     /* this is executed just the first time do_video_stats is called */
1291     if (!vstats_file) {
1292         vstats_file = fopen(vstats_filename, "w");
1293         if (!vstats_file) {
1294             perror("fopen");
1295             exit_program(1);
1296         }
1297     }
1298
1299     enc = ost->st->codec;
1300     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1301         frame_number = ost->frame_number;
1302         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1303         if (enc->flags&CODEC_FLAG_PSNR)
1304             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1305
1306         fprintf(vstats_file,"f_size= %6d ", frame_size);
1307         /* compute pts value */
1308         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1309         if (ti1 < 0.01)
1310             ti1 = 0.01;
1311
1312         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1313         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1314         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1315             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1316         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1317     }
1318 }
1319
1320 static void print_report(OutputFile *output_files,
1321                          OutputStream *ost_table, int nb_ostreams,
1322                          int is_last_report, int64_t timer_start)
1323 {
1324     char buf[1024];
1325     OutputStream *ost;
1326     AVFormatContext *oc;
1327     int64_t total_size;
1328     AVCodecContext *enc;
1329     int frame_number, vid, i;
1330     double bitrate;
1331     int64_t pts = INT64_MAX;
1332     static int64_t last_time = -1;
1333     static int qp_histogram[52];
1334
1335     if (!is_last_report) {
1336         int64_t cur_time;
1337         /* display the report every 0.5 seconds */
1338         cur_time = av_gettime();
1339         if (last_time == -1) {
1340             last_time = cur_time;
1341             return;
1342         }
1343         if ((cur_time - last_time) < 500000)
1344             return;
1345         last_time = cur_time;
1346     }
1347
1348
1349     oc = output_files[0].ctx;
1350
1351     total_size = avio_size(oc->pb);
1352     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1353         total_size= avio_tell(oc->pb);
1354
1355     buf[0] = '\0';
1356     vid = 0;
1357     for(i=0;i<nb_ostreams;i++) {
1358         float q = -1;
1359         ost = &ost_table[i];
1360         enc = ost->st->codec;
1361         if (!ost->st->stream_copy && enc->coded_frame)
1362             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1363         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1364             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1365         }
1366         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1367             float t = (av_gettime()-timer_start) / 1000000.0;
1368
1369             frame_number = ost->frame_number;
1370             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1371                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1372             if(is_last_report)
1373                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1374             if(qp_hist){
1375                 int j;
1376                 int qp = lrintf(q);
1377                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1378                     qp_histogram[qp]++;
1379                 for(j=0; j<32; j++)
1380                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1381             }
1382             if (enc->flags&CODEC_FLAG_PSNR){
1383                 int j;
1384                 double error, error_sum=0;
1385                 double scale, scale_sum=0;
1386                 char type[3]= {'Y','U','V'};
1387                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1388                 for(j=0; j<3; j++){
1389                     if(is_last_report){
1390                         error= enc->error[j];
1391                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1392                     }else{
1393                         error= enc->coded_frame->error[j];
1394                         scale= enc->width*enc->height*255.0*255.0;
1395                     }
1396                     if(j) scale/=4;
1397                     error_sum += error;
1398                     scale_sum += scale;
1399                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1400                 }
1401                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1402             }
1403             vid = 1;
1404         }
1405         /* compute min output value */
1406         pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
1407                                       ost->st->time_base, AV_TIME_BASE_Q));
1408     }
1409
1410     if (verbose > 0 || is_last_report) {
1411         int hours, mins, secs, us;
1412         secs = pts / AV_TIME_BASE;
1413         us = pts % AV_TIME_BASE;
1414         mins = secs / 60;
1415         secs %= 60;
1416         hours = mins / 60;
1417         mins %= 60;
1418
1419         bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1420
1421         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1422                  "size=%8.0fkB time=", total_size / 1024.0);
1423         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1424                  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1425                  (100 * us) / AV_TIME_BASE);
1426         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1427                  "bitrate=%6.1fkbits/s", bitrate);
1428
1429         if (nb_frames_dup || nb_frames_drop)
1430           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1431                   nb_frames_dup, nb_frames_drop);
1432
1433         if (verbose >= 0)
1434             fprintf(stderr, "%s    \r", buf);
1435
1436         fflush(stderr);
1437     }
1438
1439     if (is_last_report && verbose >= 0){
1440         int64_t raw= audio_size + video_size + extra_size;
1441         fprintf(stderr, "\n");
1442         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1443                 video_size/1024.0,
1444                 audio_size/1024.0,
1445                 extra_size/1024.0,
1446                 100.0*(total_size - raw)/raw
1447         );
1448     }
1449 }
1450
1451 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1452 {
1453     int fill_char = 0x00;
1454     if (sample_fmt == AV_SAMPLE_FMT_U8)
1455         fill_char = 0x80;
1456     memset(buf, fill_char, size);
1457 }
1458
1459 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1460 {
1461     int i, ret;
1462
1463     for (i = 0; i < nb_ostreams; i++) {
1464         OutputStream   *ost = &ost_table[i];
1465         AVCodecContext *enc = ost->st->codec;
1466         AVFormatContext *os = output_files[ost->file_index].ctx;
1467
1468         if (!ost->encoding_needed)
1469             continue;
1470
1471         if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1472             continue;
1473         if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1474             continue;
1475
1476         for(;;) {
1477             AVPacket pkt;
1478             int fifo_bytes;
1479             av_init_packet(&pkt);
1480             pkt.stream_index= ost->index;
1481
1482             switch (ost->st->codec->codec_type) {
1483             case AVMEDIA_TYPE_AUDIO:
1484                 fifo_bytes = av_fifo_size(ost->fifo);
1485                 ret = 0;
1486                 /* encode any samples remaining in fifo */
1487                 if (fifo_bytes > 0) {
1488                     int osize = av_get_bytes_per_sample(enc->sample_fmt);
1489                     int fs_tmp = enc->frame_size;
1490
1491                     av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1492                     if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1493                         enc->frame_size = fifo_bytes / (osize * enc->channels);
1494                     } else { /* pad */
1495                         int frame_bytes = enc->frame_size*osize*enc->channels;
1496                         if (allocated_audio_buf_size < frame_bytes)
1497                             exit_program(1);
1498                         generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1499                     }
1500
1501                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1502                     pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1503                                               ost->st->time_base.num, enc->sample_rate);
1504                     enc->frame_size = fs_tmp;
1505                 }
1506                 if (ret <= 0) {
1507                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1508                 }
1509                 if (ret < 0) {
1510                     fprintf(stderr, "Audio encoding failed\n");
1511                     exit_program(1);
1512                 }
1513                 audio_size += ret;
1514                 pkt.flags |= AV_PKT_FLAG_KEY;
1515                 break;
1516             case AVMEDIA_TYPE_VIDEO:
1517                 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1518                 if (ret < 0) {
1519                     fprintf(stderr, "Video encoding failed\n");
1520                     exit_program(1);
1521                 }
1522                 video_size += ret;
1523                 if(enc->coded_frame && enc->coded_frame->key_frame)
1524                     pkt.flags |= AV_PKT_FLAG_KEY;
1525                 if (ost->logfile && enc->stats_out) {
1526                     fprintf(ost->logfile, "%s", enc->stats_out);
1527                 }
1528                 break;
1529             default:
1530                 ret=-1;
1531             }
1532
1533             if (ret <= 0)
1534                 break;
1535             pkt.data = bit_buffer;
1536             pkt.size = ret;
1537             if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1538                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1539             write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1540         }
1541     }
1542 }
1543
1544 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1545 static int output_packet(InputStream *ist, int ist_index,
1546                          OutputStream *ost_table, int nb_ostreams,
1547                          const AVPacket *pkt)
1548 {
1549     AVFormatContext *os;
1550     OutputStream *ost;
1551     int ret, i;
1552     int got_output;
1553     AVFrame picture;
1554     void *buffer_to_free = NULL;
1555     static unsigned int samples_size= 0;
1556     AVSubtitle subtitle, *subtitle_to_free;
1557     int64_t pkt_pts = AV_NOPTS_VALUE;
1558 #if CONFIG_AVFILTER
1559     int frame_available;
1560 #endif
1561     float quality;
1562
1563     AVPacket avpkt;
1564     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1565
1566     if(ist->next_pts == AV_NOPTS_VALUE)
1567         ist->next_pts= ist->pts;
1568
1569     if (pkt == NULL) {
1570         /* EOF handling */
1571         av_init_packet(&avpkt);
1572         avpkt.data = NULL;
1573         avpkt.size = 0;
1574         goto handle_eof;
1575     } else {
1576         avpkt = *pkt;
1577     }
1578
1579     if(pkt->dts != AV_NOPTS_VALUE)
1580         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1581     if(pkt->pts != AV_NOPTS_VALUE)
1582         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1583
1584     //while we have more to decode or while the decoder did output something on EOF
1585     while (avpkt.size > 0 || (!pkt && got_output)) {
1586         uint8_t *data_buf, *decoded_data_buf;
1587         int data_size, decoded_data_size;
1588     handle_eof:
1589         ist->pts= ist->next_pts;
1590
1591         if(avpkt.size && avpkt.size != pkt->size &&
1592            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1593             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1594             ist->showed_multi_packet_warning=1;
1595         }
1596
1597         /* decode the packet if needed */
1598         decoded_data_buf = NULL; /* fail safe */
1599         decoded_data_size= 0;
1600         data_buf  = avpkt.data;
1601         data_size = avpkt.size;
1602         subtitle_to_free = NULL;
1603         if (ist->decoding_needed) {
1604             switch(ist->st->codec->codec_type) {
1605             case AVMEDIA_TYPE_AUDIO:{
1606                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1607                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1608                     av_free(samples);
1609                     samples= av_malloc(samples_size);
1610                 }
1611                 decoded_data_size= samples_size;
1612                     /* XXX: could avoid copy if PCM 16 bits with same
1613                        endianness as CPU */
1614                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1615                                             &avpkt);
1616                 if (ret < 0)
1617                     return ret;
1618                 avpkt.data += ret;
1619                 avpkt.size -= ret;
1620                 data_size   = ret;
1621                 got_output  = decoded_data_size > 0;
1622                 /* Some bug in mpeg audio decoder gives */
1623                 /* decoded_data_size < 0, it seems they are overflows */
1624                 if (!got_output) {
1625                     /* no audio frame */
1626                     continue;
1627                 }
1628                 decoded_data_buf = (uint8_t *)samples;
1629                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1630                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1631                 break;}
1632             case AVMEDIA_TYPE_VIDEO:
1633                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1634                     /* XXX: allocate picture correctly */
1635                     avcodec_get_frame_defaults(&picture);
1636                     avpkt.pts = pkt_pts;
1637                     avpkt.dts = ist->pts;
1638                     pkt_pts = AV_NOPTS_VALUE;
1639
1640                     ret = avcodec_decode_video2(ist->st->codec,
1641                                                 &picture, &got_output, &avpkt);
1642                     quality = same_quant ? picture.quality : 0;
1643                     if (ret < 0)
1644                         return ret;
1645                     if (!got_output) {
1646                         /* no picture yet */
1647                         goto discard_packet;
1648                     }
1649                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
1650                     if (ist->st->codec->time_base.num != 0) {
1651                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1652                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1653                                           ist->st->codec->time_base.num * ticks) /
1654                             ist->st->codec->time_base.den;
1655                     }
1656                     avpkt.size = 0;
1657                     buffer_to_free = NULL;
1658                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1659                     break;
1660             case AVMEDIA_TYPE_SUBTITLE:
1661                 ret = avcodec_decode_subtitle2(ist->st->codec,
1662                                                &subtitle, &got_output, &avpkt);
1663                 if (ret < 0)
1664                     return ret;
1665                 if (!got_output) {
1666                     goto discard_packet;
1667                 }
1668                 subtitle_to_free = &subtitle;
1669                 avpkt.size = 0;
1670                 break;
1671             default:
1672                 return -1;
1673             }
1674         } else {
1675             switch(ist->st->codec->codec_type) {
1676             case AVMEDIA_TYPE_AUDIO:
1677                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1678                     ist->st->codec->sample_rate;
1679                 break;
1680             case AVMEDIA_TYPE_VIDEO:
1681                 if (ist->st->codec->time_base.num != 0) {
1682                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1683                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1684                                       ist->st->codec->time_base.num * ticks) /
1685                         ist->st->codec->time_base.den;
1686                 }
1687                 break;
1688             }
1689             avpkt.size = 0;
1690         }
1691
1692         // preprocess audio (volume)
1693         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1694             if (audio_volume != 256) {
1695                 short *volp;
1696                 volp = samples;
1697                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1698                     int v = ((*volp) * audio_volume + 128) >> 8;
1699                     *volp++ = av_clip_int16(v);
1700                 }
1701             }
1702         }
1703
1704         /* frame rate emulation */
1705         if (rate_emu) {
1706             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1707             int64_t now = av_gettime() - ist->start;
1708             if (pts > now)
1709                 usleep(pts - now);
1710         }
1711         /* if output time reached then transcode raw format,
1712            encode packets and output them */
1713         for (i = 0; i < nb_ostreams; i++) {
1714             OutputFile *of = &output_files[ost_table[i].file_index];
1715             int frame_size;
1716
1717             ost = &ost_table[i];
1718             if (ost->source_index != ist_index)
1719                 continue;
1720
1721             if (of->start_time && ist->pts < of->start_time)
1722                 continue;
1723
1724             if (of->recording_time != INT64_MAX &&
1725                 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1726                               (AVRational){1, 1000000}) >= 0) {
1727                 ost->is_past_recording_time = 1;
1728                 continue;
1729             }
1730
1731 #if CONFIG_AVFILTER
1732             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1733                 ost->input_video_filter) {
1734                 if (!picture.sample_aspect_ratio.num)
1735                     picture.sample_aspect_ratio = ist->st->sample_aspect_ratio;
1736                 picture.pts = ist->pts;
1737
1738                 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, AV_VSRC_BUF_FLAG_OVERWRITE);
1739             }
1740             frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1741                 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1742             while (frame_available) {
1743                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter) {
1744                     AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
1745                     if (av_vsink_buffer_get_video_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
1746                         goto cont;
1747                     if (ost->picref) {
1748                         avfilter_fill_frame_from_video_buffer_ref(&picture, ost->picref);
1749                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1750                     }
1751                 }
1752 #endif
1753                 os = output_files[ost->file_index].ctx;
1754
1755                 /* set the input output pts pairs */
1756                 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1757
1758                 if (ost->encoding_needed) {
1759                     av_assert0(ist->decoding_needed);
1760                     switch(ost->st->codec->codec_type) {
1761                     case AVMEDIA_TYPE_AUDIO:
1762                         do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1763                         break;
1764                     case AVMEDIA_TYPE_VIDEO:
1765 #if CONFIG_AVFILTER
1766                         if (ost->picref->video && !ost->frame_aspect_ratio)
1767                             ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
1768 #endif
1769                         do_video_out(os, ost, ist, &picture, &frame_size,
1770                                         same_quant ? quality : ost->st->codec->global_quality);
1771                         if (vstats_filename && frame_size)
1772                             do_video_stats(os, ost, frame_size);
1773                         break;
1774                     case AVMEDIA_TYPE_SUBTITLE:
1775                         do_subtitle_out(os, ost, ist, &subtitle,
1776                                         pkt->pts);
1777                         break;
1778                     default:
1779                         abort();
1780                     }
1781                 } else {
1782                     AVFrame avframe; //FIXME/XXX remove this
1783                     AVPicture pict;
1784                     AVPacket opkt;
1785                     int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1786                     av_init_packet(&opkt);
1787
1788                     if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1789 #if !CONFIG_AVFILTER
1790                         continue;
1791 #else
1792                         goto cont;
1793 #endif
1794
1795                     /* no reencoding needed : output the packet directly */
1796                     /* force the input stream PTS */
1797
1798                     avcodec_get_frame_defaults(&avframe);
1799                     ost->st->codec->coded_frame= &avframe;
1800                     avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1801
1802                     if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1803                         audio_size += data_size;
1804                     else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1805                         video_size += data_size;
1806                         ost->sync_opts++;
1807                     }
1808
1809                     opkt.stream_index= ost->index;
1810                     if(pkt->pts != AV_NOPTS_VALUE)
1811                         opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1812                     else
1813                         opkt.pts= AV_NOPTS_VALUE;
1814
1815                     if (pkt->dts == AV_NOPTS_VALUE)
1816                         opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1817                     else
1818                         opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1819                     opkt.dts -= ost_tb_start_time;
1820
1821                     opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1822                     opkt.flags= pkt->flags;
1823
1824                     //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1825                     if(   ost->st->codec->codec_id != CODEC_ID_H264
1826                        && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1827                        && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1828                        ) {
1829                         if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1830                             opkt.destruct= av_destruct_packet;
1831                     } else {
1832                         opkt.data = data_buf;
1833                         opkt.size = data_size;
1834                     }
1835
1836                     if (os->oformat->flags & AVFMT_RAWPICTURE) {
1837                         /* store AVPicture in AVPacket, as expected by the output format */
1838                         avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1839                         opkt.data = (uint8_t *)&pict;
1840                         opkt.size = sizeof(AVPicture);
1841                         opkt.flags |= AV_PKT_FLAG_KEY;
1842                     }
1843                     write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1844                     ost->st->codec->frame_number++;
1845                     ost->frame_number++;
1846                     av_free_packet(&opkt);
1847                 }
1848 #if CONFIG_AVFILTER
1849                 cont:
1850                 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1851                                    ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1852                 if (ost->picref)
1853                     avfilter_unref_buffer(ost->picref);
1854             }
1855 #endif
1856             }
1857
1858         av_free(buffer_to_free);
1859         /* XXX: allocate the subtitles in the codec ? */
1860         if (subtitle_to_free) {
1861             avsubtitle_free(subtitle_to_free);
1862             subtitle_to_free = NULL;
1863         }
1864     }
1865  discard_packet:
1866
1867     return 0;
1868 }
1869
1870 static void print_sdp(OutputFile *output_files, int n)
1871 {
1872     char sdp[2048];
1873     int i;
1874     AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1875
1876     if (!avc)
1877         exit_program(1);
1878     for (i = 0; i < n; i++)
1879         avc[i] = output_files[i].ctx;
1880
1881     av_sdp_create(avc, n, sdp, sizeof(sdp));
1882     printf("SDP:\n%s\n", sdp);
1883     fflush(stdout);
1884     av_freep(&avc);
1885 }
1886
1887 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1888                              char *error, int error_len)
1889 {
1890     int i;
1891     InputStream *ist = &input_streams[ist_index];
1892     if (ist->decoding_needed) {
1893         AVCodec *codec = ist->dec;
1894         if (!codec) {
1895             snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
1896                     ist->st->codec->codec_id, ist->file_index, ist->st->index);
1897             return AVERROR(EINVAL);
1898         }
1899
1900         if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1901             snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
1902                     ist->file_index, ist->st->index);
1903             return AVERROR(EINVAL);
1904         }
1905         assert_codec_experimental(ist->st->codec, 0);
1906         assert_avoptions(ist->opts);
1907     }
1908
1909     ist->pts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames*AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1910     ist->next_pts = AV_NOPTS_VALUE;
1911     ist->is_start = 1;
1912
1913     return 0;
1914 }
1915
1916 static int transcode_init(OutputFile *output_files,
1917                           int nb_output_files,
1918                           InputFile *input_files,
1919                           int nb_input_files)
1920 {
1921     int ret = 0, i;
1922     AVFormatContext *os;
1923     AVCodecContext *codec, *icodec;
1924     OutputStream *ost;
1925     InputStream *ist;
1926     char error[1024];
1927     int want_sdp = 1;
1928
1929     if (rate_emu)
1930         for (i = 0; i < nb_input_streams; i++)
1931             input_streams[i].start = av_gettime();
1932
1933     /* output stream init */
1934     for(i=0;i<nb_output_files;i++) {
1935         os = output_files[i].ctx;
1936         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1937             av_dump_format(os, i, os->filename, 1);
1938             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1939             return AVERROR(EINVAL);
1940         }
1941     }
1942
1943     /* for each output stream, we compute the right encoding parameters */
1944     for (i = 0; i < nb_output_streams; i++) {
1945         ost = &output_streams[i];
1946         os = output_files[ost->file_index].ctx;
1947         ist = &input_streams[ost->source_index];
1948
1949         codec = ost->st->codec;
1950         icodec = ist->st->codec;
1951
1952         ost->st->disposition = ist->st->disposition;
1953         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1954         codec->chroma_sample_location = icodec->chroma_sample_location;
1955
1956         if (ost->st->stream_copy) {
1957             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1958
1959             if (extra_size > INT_MAX) {
1960                 return AVERROR(EINVAL);
1961             }
1962
1963             /* if stream_copy is selected, no need to decode or encode */
1964             codec->codec_id = icodec->codec_id;
1965             codec->codec_type = icodec->codec_type;
1966
1967             if(!codec->codec_tag){
1968                 if(   !os->oformat->codec_tag
1969                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1970                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1971                     codec->codec_tag = icodec->codec_tag;
1972             }
1973
1974             codec->bit_rate = icodec->bit_rate;
1975             codec->rc_max_rate    = icodec->rc_max_rate;
1976             codec->rc_buffer_size = icodec->rc_buffer_size;
1977             codec->extradata= av_mallocz(extra_size);
1978             if (!codec->extradata) {
1979                 return AVERROR(ENOMEM);
1980             }
1981             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1982             codec->extradata_size= icodec->extradata_size;
1983
1984             codec->time_base = ist->st->time_base;
1985             if(!strcmp(os->oformat->name, "avi")) {
1986                 if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
1987                     codec->time_base = icodec->time_base;
1988                     codec->time_base.num *= icodec->ticks_per_frame;
1989                     codec->time_base.den *= 2;
1990                 }
1991             } else if(!(os->oformat->flags & AVFMT_VARIABLE_FPS)) {
1992                 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){
1993                     codec->time_base = icodec->time_base;
1994                     codec->time_base.num *= icodec->ticks_per_frame;
1995                 }
1996             }
1997             av_reduce(&codec->time_base.num, &codec->time_base.den,
1998                         codec->time_base.num, codec->time_base.den, INT_MAX);
1999
2000             switch(codec->codec_type) {
2001             case AVMEDIA_TYPE_AUDIO:
2002                 if(audio_volume != 256) {
2003                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2004                     exit_program(1);
2005                 }
2006                 codec->channel_layout = icodec->channel_layout;
2007                 codec->sample_rate = icodec->sample_rate;
2008                 codec->channels = icodec->channels;
2009                 codec->frame_size = icodec->frame_size;
2010                 codec->audio_service_type = icodec->audio_service_type;
2011                 codec->block_align= icodec->block_align;
2012                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2013                     codec->block_align= 0;
2014                 if(codec->codec_id == CODEC_ID_AC3)
2015                     codec->block_align= 0;
2016                 break;
2017             case AVMEDIA_TYPE_VIDEO:
2018                 codec->pix_fmt = icodec->pix_fmt;
2019                 codec->width = icodec->width;
2020                 codec->height = icodec->height;
2021                 codec->has_b_frames = icodec->has_b_frames;
2022                 if (!codec->sample_aspect_ratio.num) {
2023                     codec->sample_aspect_ratio =
2024                     ost->st->sample_aspect_ratio =
2025                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2026                         ist->st->codec->sample_aspect_ratio.num ?
2027                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2028                 }
2029                 break;
2030             case AVMEDIA_TYPE_SUBTITLE:
2031                 codec->width = icodec->width;
2032                 codec->height = icodec->height;
2033                 break;
2034             case AVMEDIA_TYPE_DATA:
2035                 break;
2036             default:
2037                 abort();
2038             }
2039         } else {
2040             if (!ost->enc)
2041                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2042             switch(codec->codec_type) {
2043             case AVMEDIA_TYPE_AUDIO:
2044                 ost->fifo= av_fifo_alloc(1024);
2045                 if (!ost->fifo) {
2046                     return AVERROR(ENOMEM);
2047                 }
2048                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2049                 if (!codec->sample_rate) {
2050                     codec->sample_rate = icodec->sample_rate;
2051                 }
2052                 choose_sample_rate(ost->st, ost->enc);
2053                 codec->time_base = (AVRational){1, codec->sample_rate};
2054                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2055                     codec->sample_fmt = icodec->sample_fmt;
2056                 choose_sample_fmt(ost->st, ost->enc);
2057                 if (!codec->channels) {
2058                     codec->channels = icodec->channels;
2059                     codec->channel_layout = icodec->channel_layout;
2060                 }
2061                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2062                     codec->channel_layout = 0;
2063                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2064                 icodec->request_channels = codec->channels;
2065                 ist->decoding_needed = 1;
2066                 ost->encoding_needed = 1;
2067                 ost->resample_sample_fmt  = icodec->sample_fmt;
2068                 ost->resample_sample_rate = icodec->sample_rate;
2069                 ost->resample_channels    = icodec->channels;
2070                 break;
2071             case AVMEDIA_TYPE_VIDEO:
2072                 if (codec->pix_fmt == PIX_FMT_NONE)
2073                     codec->pix_fmt = icodec->pix_fmt;
2074                 choose_pixel_fmt(ost->st, ost->enc);
2075
2076                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2077                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2078                     exit_program(1);
2079                 }
2080
2081                 if (!codec->width || !codec->height) {
2082                     codec->width  = icodec->width;
2083                     codec->height = icodec->height;
2084                 }
2085
2086                 ost->video_resample = codec->width   != icodec->width  ||
2087                                       codec->height  != icodec->height ||
2088                                       codec->pix_fmt != icodec->pix_fmt;
2089                 if (ost->video_resample) {
2090                     codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2091                 }
2092
2093                 ost->resample_height = icodec->height;
2094                 ost->resample_width  = icodec->width;
2095                 ost->resample_pix_fmt= icodec->pix_fmt;
2096                 ost->encoding_needed = 1;
2097                 ist->decoding_needed = 1;
2098
2099                 if (!ost->frame_rate.num)
2100                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2101                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2102                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2103                     ost->frame_rate = ost->enc->supported_framerates[idx];
2104                 }
2105                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2106                 if(   av_q2d(codec->time_base) < 0.001 && video_sync_method
2107                    && (video_sync_method==1 || (video_sync_method<0 && !(os->oformat->flags & AVFMT_VARIABLE_FPS)))){
2108                     av_log(os, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
2109                                                "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
2110                 }
2111
2112 #if CONFIG_AVFILTER
2113                 if (configure_video_filters(ist, ost)) {
2114                     fprintf(stderr, "Error opening filters!\n");
2115                     exit(1);
2116                 }
2117 #endif
2118                 break;
2119             case AVMEDIA_TYPE_SUBTITLE:
2120                 ost->encoding_needed = 1;
2121                 ist->decoding_needed = 1;
2122                 break;
2123             default:
2124                 abort();
2125                 break;
2126             }
2127             /* two pass mode */
2128             if (ost->encoding_needed && codec->codec_id != CODEC_ID_H264 &&
2129                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2130                 char logfilename[1024];
2131                 FILE *f;
2132
2133                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2134                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2135                          i);
2136                 if (codec->flags & CODEC_FLAG_PASS1) {
2137                     f = fopen(logfilename, "wb");
2138                     if (!f) {
2139                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2140                         exit_program(1);
2141                     }
2142                     ost->logfile = f;
2143                 } else {
2144                     char  *logbuffer;
2145                     size_t logbuffer_size;
2146                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2147                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2148                         exit_program(1);
2149                     }
2150                     codec->stats_in = logbuffer;
2151                 }
2152             }
2153         }
2154         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2155             /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
2156             int size= codec->width * codec->height;
2157             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);
2158         }
2159     }
2160
2161     if (!bit_buffer)
2162         bit_buffer = av_malloc(bit_buffer_size);
2163     if (!bit_buffer) {
2164         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2165                 bit_buffer_size);
2166         return AVERROR(ENOMEM);
2167     }
2168
2169     /* open each encoder */
2170     for (i = 0; i < nb_output_streams; i++) {
2171         ost = &output_streams[i];
2172         if (ost->encoding_needed) {
2173             AVCodec *codec = ost->enc;
2174             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2175             if (!codec) {
2176                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2177                          ost->st->codec->codec_id, ost->file_index, ost->index);
2178                 ret = AVERROR(EINVAL);
2179                 goto dump_format;
2180             }
2181             if (dec->subtitle_header) {
2182                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2183                 if (!ost->st->codec->subtitle_header) {
2184                     ret = AVERROR(ENOMEM);
2185                     goto dump_format;
2186                 }
2187                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2188                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2189             }
2190             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2191                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2192                         ost->file_index, ost->index);
2193                 ret = AVERROR(EINVAL);
2194                 goto dump_format;
2195             }
2196             assert_codec_experimental(ost->st->codec, 1);
2197             assert_avoptions(ost->opts);
2198             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2199                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2200                                              "It takes bits/s as argument, not kbits/s\n");
2201             extra_size += ost->st->codec->extradata_size;
2202         }
2203     }
2204
2205     /* init input streams */
2206     for (i = 0; i < nb_input_streams; i++)
2207         if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error)) < 0))
2208             goto dump_format;
2209
2210     /* open files and write file headers */
2211     for (i = 0; i < nb_output_files; i++) {
2212         os = output_files[i].ctx;
2213         if (avformat_write_header(os, &output_files[i].opts) < 0) {
2214             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2215             ret = AVERROR(EINVAL);
2216             goto dump_format;
2217         }
2218 //        assert_avoptions(output_files[i].opts);
2219         if (strcmp(os->oformat->name, "rtp")) {
2220             want_sdp = 0;
2221         }
2222     }
2223
2224  dump_format:
2225     /* dump the file output parameters - cannot be done before in case
2226        of stream copy */
2227     for(i=0;i<nb_output_files;i++) {
2228         av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2229     }
2230
2231     /* dump the stream mapping */
2232     if (verbose >= 0) {
2233         fprintf(stderr, "Stream mapping:\n");
2234         for (i = 0; i < nb_output_streams;i ++) {
2235             ost = &output_streams[i];
2236             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2237                     input_streams[ost->source_index].file_index,
2238                     input_streams[ost->source_index].st->index,
2239                     ost->file_index,
2240                     ost->index);
2241             if (ost->sync_ist != &input_streams[ost->source_index])
2242                 fprintf(stderr, " [sync #%d.%d]",
2243                         ost->sync_ist->file_index,
2244                         ost->sync_ist->st->index);
2245             if (ost->st->stream_copy)
2246                 fprintf(stderr, " (copy)");
2247             else
2248                 fprintf(stderr, " (%s -> %s)", input_streams[ost->source_index].dec ?
2249                         input_streams[ost->source_index].dec->name : "?",
2250                         ost->enc ? ost->enc->name : "?");
2251             fprintf(stderr, "\n");
2252         }
2253     }
2254
2255     if (ret) {
2256         fprintf(stderr, "%s\n", error);
2257         return ret;
2258     }
2259
2260     if (want_sdp) {
2261         print_sdp(output_files, nb_output_files);
2262     }
2263
2264     return 0;
2265 }
2266
2267 /*
2268  * The following code is the main loop of the file converter
2269  */
2270 static int transcode(OutputFile *output_files,
2271                      int nb_output_files,
2272                      InputFile *input_files,
2273                      int nb_input_files)
2274 {
2275     int ret, i;
2276     AVFormatContext *is, *os;
2277     OutputStream *ost;
2278     InputStream *ist;
2279     uint8_t *no_packet;
2280     int no_packet_count=0;
2281     int64_t timer_start;
2282     int key;
2283
2284     if (!(no_packet = av_mallocz(nb_input_files)))
2285         exit_program(1);
2286
2287     ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2288     if (ret < 0)
2289         goto fail;
2290
2291     if (!using_stdin) {
2292         if(verbose >= 0)
2293             fprintf(stderr, "Press [q] to stop, [?] for help\n");
2294         avio_set_interrupt_cb(decode_interrupt_cb);
2295     }
2296     term_init();
2297
2298     timer_start = av_gettime();
2299
2300     for(; received_sigterm == 0;) {
2301         int file_index, ist_index;
2302         AVPacket pkt;
2303         int64_t ipts_min;
2304         double opts_min;
2305
2306         ipts_min = INT64_MAX;
2307         opts_min= 1e100;
2308         /* if 'q' pressed, exits */
2309         if (!using_stdin) {
2310             if (q_pressed)
2311                 break;
2312             /* read_key() returns 0 on EOF */
2313             key = read_key();
2314             if (key == 'q')
2315                 break;
2316             if (key == '+') verbose++;
2317             if (key == '-') verbose--;
2318             if (key == 's') qp_hist     ^= 1;
2319             if (key == 'h'){
2320                 if (do_hex_dump){
2321                     do_hex_dump = do_pkt_dump = 0;
2322                 } else if(do_pkt_dump){
2323                     do_hex_dump = 1;
2324                 } else
2325                     do_pkt_dump = 1;
2326                 av_log_set_level(AV_LOG_DEBUG);
2327             }
2328             if (key == 'd' || key == 'D'){
2329                 int debug=0;
2330                 if(key == 'D') {
2331                     debug = input_streams[0].st->codec->debug<<1;
2332                     if(!debug) debug = 1;
2333                     while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2334                         debug += debug;
2335                 }else
2336                     scanf("%d", &debug);
2337                 for(i=0;i<nb_input_streams;i++) {
2338                     input_streams[i].st->codec->debug = debug;
2339                 }
2340                 for(i=0;i<nb_output_streams;i++) {
2341                     ost = &output_streams[i];
2342                     ost->st->codec->debug = debug;
2343                 }
2344                 if(debug) av_log_set_level(AV_LOG_DEBUG);
2345                 fprintf(stderr,"debug=%d\n", debug);
2346             }
2347             if (key == '?'){
2348                 fprintf(stderr, "key    function\n"
2349                                 "?      show this help\n"
2350                                 "+      increase verbosity\n"
2351                                 "-      decrease verbosity\n"
2352                                 "D      cycle through available debug modes\n"
2353                                 "h      dump packets/hex press to cycle through the 3 states\n"
2354                                 "q      quit\n"
2355                                 "s      Show QP histogram\n"
2356                 );
2357             }
2358         }
2359
2360         /* select the stream that we must read now by looking at the
2361            smallest output pts */
2362         file_index = -1;
2363         for (i = 0; i < nb_output_streams; i++) {
2364             OutputFile *of;
2365             int64_t ipts;
2366             double  opts;
2367             ost = &output_streams[i];
2368             of = &output_files[ost->file_index];
2369             os = output_files[ost->file_index].ctx;
2370             ist = &input_streams[ost->source_index];
2371             if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2372                 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2373                 continue;
2374             opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2375             ipts = ist->pts;
2376             if (!input_files[ist->file_index].eof_reached){
2377                 if(ipts < ipts_min) {
2378                     ipts_min = ipts;
2379                     if(input_sync ) file_index = ist->file_index;
2380                 }
2381                 if(opts < opts_min) {
2382                     opts_min = opts;
2383                     if(!input_sync) file_index = ist->file_index;
2384                 }
2385             }
2386             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2387                 file_index= -1;
2388                 break;
2389             }
2390         }
2391         /* if none, if is finished */
2392         if (file_index < 0) {
2393             if(no_packet_count){
2394                 no_packet_count=0;
2395                 memset(no_packet, 0, nb_input_files);
2396                 usleep(10000);
2397                 continue;
2398             }
2399             break;
2400         }
2401
2402         /* read a frame from it and output it in the fifo */
2403         is = input_files[file_index].ctx;
2404         ret= av_read_frame(is, &pkt);
2405         if(ret == AVERROR(EAGAIN)){
2406             no_packet[file_index]=1;
2407             no_packet_count++;
2408             continue;
2409         }
2410         if (ret < 0) {
2411             input_files[file_index].eof_reached = 1;
2412             if (opt_shortest)
2413                 break;
2414             else
2415                 continue;
2416         }
2417
2418         no_packet_count=0;
2419         memset(no_packet, 0, nb_input_files);
2420
2421         if (do_pkt_dump) {
2422             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2423                              is->streams[pkt.stream_index]);
2424         }
2425         /* the following test is needed in case new streams appear
2426            dynamically in stream : we ignore them */
2427         if (pkt.stream_index >= input_files[file_index].nb_streams)
2428             goto discard_packet;
2429         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2430         ist = &input_streams[ist_index];
2431         if (ist->discard)
2432             goto discard_packet;
2433
2434         if (pkt.dts != AV_NOPTS_VALUE)
2435             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2436         if (pkt.pts != AV_NOPTS_VALUE)
2437             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2438
2439         if (ist->ts_scale) {
2440             if(pkt.pts != AV_NOPTS_VALUE)
2441                 pkt.pts *= ist->ts_scale;
2442             if(pkt.dts != AV_NOPTS_VALUE)
2443                 pkt.dts *= ist->ts_scale;
2444         }
2445
2446 //        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);
2447         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2448             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2449             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2450             int64_t delta= pkt_dts - ist->next_pts;
2451             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2452                 input_files[ist->file_index].ts_offset -= delta;
2453                 if (verbose > 2)
2454                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2455                             delta, input_files[ist->file_index].ts_offset);
2456                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2457                 if(pkt.pts != AV_NOPTS_VALUE)
2458                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2459             }
2460         }
2461
2462         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2463         if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2464
2465             if (verbose >= 0)
2466                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2467                         ist->file_index, ist->st->index);
2468             if (exit_on_error)
2469                 exit_program(1);
2470             av_free_packet(&pkt);
2471             continue;
2472         }
2473
2474     discard_packet:
2475         av_free_packet(&pkt);
2476
2477         /* dump report by using the output first video and audio streams */
2478         print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2479     }
2480
2481     /* at the end of stream, we must flush the decoder buffers */
2482     for (i = 0; i < nb_input_streams; i++) {
2483         ist = &input_streams[i];
2484         if (ist->decoding_needed) {
2485             output_packet(ist, i, output_streams, nb_output_streams, NULL);
2486         }
2487     }
2488     flush_encoders(output_streams, nb_output_streams);
2489
2490     term_exit();
2491
2492     /* write the trailer if needed and close file */
2493     for(i=0;i<nb_output_files;i++) {
2494         os = output_files[i].ctx;
2495         av_write_trailer(os);
2496     }
2497
2498     /* dump report by using the first video and audio streams */
2499     print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2500
2501     /* close each encoder */
2502     for (i = 0; i < nb_output_streams; i++) {
2503         ost = &output_streams[i];
2504         if (ost->encoding_needed) {
2505             av_freep(&ost->st->codec->stats_in);
2506             avcodec_close(ost->st->codec);
2507         }
2508 #if CONFIG_AVFILTER
2509         avfilter_graph_free(&ost->graph);
2510 #endif
2511     }
2512
2513     /* close each decoder */
2514     for (i = 0; i < nb_input_streams; i++) {
2515         ist = &input_streams[i];
2516         if (ist->decoding_needed) {
2517             avcodec_close(ist->st->codec);
2518         }
2519     }
2520
2521     /* finished ! */
2522     ret = 0;
2523
2524  fail:
2525     av_freep(&bit_buffer);
2526     av_freep(&no_packet);
2527
2528     if (output_streams) {
2529         for (i = 0; i < nb_output_streams; i++) {
2530             ost = &output_streams[i];
2531             if (ost) {
2532                 if (ost->st->stream_copy)
2533                     av_freep(&ost->st->codec->extradata);
2534                 if (ost->logfile) {
2535                     fclose(ost->logfile);
2536                     ost->logfile = NULL;
2537                 }
2538                 av_fifo_free(ost->fifo); /* works even if fifo is not
2539                                              initialized but set to zero */
2540                 av_freep(&ost->st->codec->subtitle_header);
2541                 av_free(ost->resample_frame.data[0]);
2542                 av_free(ost->forced_kf_pts);
2543                 if (ost->video_resample)
2544                     sws_freeContext(ost->img_resample_ctx);
2545                 if (ost->resample)
2546                     audio_resample_close(ost->resample);
2547                 if (ost->reformat_ctx)
2548                     av_audio_convert_free(ost->reformat_ctx);
2549                 av_dict_free(&ost->opts);
2550             }
2551         }
2552     }
2553     return ret;
2554 }
2555
2556 static int opt_format(const char *opt, const char *arg)
2557 {
2558     last_asked_format = arg;
2559     return 0;
2560 }
2561
2562 static int opt_video_rc_override_string(const char *opt, const char *arg)
2563 {
2564     video_rc_override_string = arg;
2565     return 0;
2566 }
2567
2568 static int opt_me_threshold(const char *opt, const char *arg)
2569 {
2570     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2571     return 0;
2572 }
2573
2574 static int opt_verbose(const char *opt, const char *arg)
2575 {
2576     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2577     return 0;
2578 }
2579
2580 static int opt_frame_rate(const char *opt, const char *arg)
2581 {
2582     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2583         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2584         exit_program(1);
2585     }
2586     return 0;
2587 }
2588
2589 static int opt_frame_size(const char *opt, const char *arg)
2590 {
2591     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2592         fprintf(stderr, "Incorrect frame size\n");
2593         return AVERROR(EINVAL);
2594     }
2595     return 0;
2596 }
2597
2598 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2599 {
2600     if (strcmp(arg, "list")) {
2601         frame_pix_fmt = av_get_pix_fmt(arg);
2602         if (frame_pix_fmt == PIX_FMT_NONE) {
2603             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2604             return AVERROR(EINVAL);
2605         }
2606     } else {
2607         opt_pix_fmts(NULL, NULL);
2608         exit_program(0);
2609     }
2610     return 0;
2611 }
2612
2613 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2614 {
2615     int x = 0, y = 0;
2616     double ar = 0;
2617     const char *p;
2618     char *end;
2619
2620     p = strchr(arg, ':');
2621     if (p) {
2622         x = strtol(arg, &end, 10);
2623         if (end == p)
2624             y = strtol(end+1, &end, 10);
2625         if (x > 0 && y > 0)
2626             ar = (double)x / (double)y;
2627     } else
2628         ar = strtod(arg, NULL);
2629
2630     if (!ar) {
2631         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2632         return AVERROR(EINVAL);
2633     }
2634     frame_aspect_ratio = ar;
2635     return 0;
2636 }
2637
2638 static int opt_metadata(const char *opt, const char *arg)
2639 {
2640     char *mid= strchr(arg, '=');
2641
2642     if(!mid){
2643         fprintf(stderr, "Missing =\n");
2644         exit_program(1);
2645     }
2646     *mid++= 0;
2647
2648     av_dict_set(&metadata, arg, mid, 0);
2649
2650     return 0;
2651 }
2652
2653 static int opt_qscale(const char *opt, const char *arg)
2654 {
2655     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2656     if (video_qscale <= 0 || video_qscale > 255) {
2657         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2658         return AVERROR(EINVAL);
2659     }
2660     return 0;
2661 }
2662
2663 static int opt_top_field_first(const char *opt, const char *arg)
2664 {
2665     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2666     return opt_default(opt, arg);
2667 }
2668
2669 static int opt_thread_count(const char *opt, const char *arg)
2670 {
2671     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2672 #if !HAVE_THREADS
2673     if (verbose >= 0)
2674         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2675 #endif
2676     return 0;
2677 }
2678
2679 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2680 {
2681     if (strcmp(arg, "list")) {
2682         audio_sample_fmt = av_get_sample_fmt(arg);
2683         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2684             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2685             return AVERROR(EINVAL);
2686         }
2687     } else {
2688         int i;
2689         char fmt_str[128];
2690         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2691             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2692         exit_program(0);
2693     }
2694     return 0;
2695 }
2696
2697 static int opt_audio_rate(const char *opt, const char *arg)
2698 {
2699     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2700     return 0;
2701 }
2702
2703 static int opt_audio_channels(const char *opt, const char *arg)
2704 {
2705     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2706     return 0;
2707 }
2708
2709 static int opt_codec(const char *opt, const char *arg)
2710 {
2711     return av_dict_set(&codec_names, opt, arg, 0);
2712 }
2713
2714 static int opt_audio_codec(const char *opt, const char *arg)
2715 {
2716     return opt_codec("codec:a", arg);
2717 }
2718
2719 static int opt_video_codec(const char *opt, const char *arg)
2720 {
2721     return opt_codec("codec:v", arg);
2722 }
2723
2724 static int opt_subtitle_codec(const char *opt, const char *arg)
2725 {
2726     return opt_codec("codec:s", arg);
2727 }
2728
2729 static int opt_data_codec(const char *opt, const char *arg)
2730 {
2731     return opt_codec("codec:d", arg);
2732 }
2733
2734 static int opt_codec_tag(const char *opt, const char *arg)
2735 {
2736     char *tail;
2737     uint32_t *codec_tag;
2738
2739     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2740                 !strcmp(opt, "vtag") ? &video_codec_tag :
2741                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2742     if (!codec_tag)
2743         return -1;
2744
2745     *codec_tag = strtol(arg, &tail, 0);
2746     if (!tail || *tail)
2747         *codec_tag = AV_RL32(arg);
2748
2749     return 0;
2750 }
2751
2752 static int opt_map(const char *opt, const char *arg)
2753 {
2754     StreamMap *m = NULL;
2755     int i, negative = 0, file_idx;
2756     int sync_file_idx = -1, sync_stream_idx;
2757     char *p, *sync;
2758     char *map;
2759
2760     if (*arg == '-') {
2761         negative = 1;
2762         arg++;
2763     }
2764     map = av_strdup(arg);
2765
2766     /* parse sync stream first, just pick first matching stream */
2767     if (sync = strchr(map, ',')) {
2768         *sync = 0;
2769         sync_file_idx = strtol(sync + 1, &sync, 0);
2770         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2771             av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2772             exit_program(1);
2773         }
2774         if (*sync)
2775             sync++;
2776         for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2777             if (check_stream_specifier(input_files[sync_file_idx].ctx,
2778                                        input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2779                 sync_stream_idx = i;
2780                 break;
2781             }
2782         if (i == input_files[sync_file_idx].nb_streams) {
2783             av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2784                                        "match any streams.\n", arg);
2785             exit_program(1);
2786         }
2787     }
2788
2789
2790     file_idx = strtol(map, &p, 0);
2791     if (file_idx >= nb_input_files || file_idx < 0) {
2792         av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2793         exit_program(1);
2794     }
2795     if (negative)
2796         /* disable some already defined maps */
2797         for (i = 0; i < nb_stream_maps; i++) {
2798             m = &stream_maps[i];
2799             if (check_stream_specifier(input_files[m->file_index].ctx,
2800                                        input_files[m->file_index].ctx->streams[m->stream_index],
2801                                        *p == ':' ? p + 1 : p) > 0)
2802                 m->disabled = 1;
2803         }
2804     else
2805         for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2806             if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2807                         *p == ':' ? p + 1 : p) <= 0)
2808                 continue;
2809             stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2810             m = &stream_maps[nb_stream_maps - 1];
2811
2812             m->file_index   = file_idx;
2813             m->stream_index = i;
2814
2815             if (sync_file_idx >= 0) {
2816                 m->sync_file_index   = sync_file_idx;
2817                 m->sync_stream_index = sync_stream_idx;
2818             } else {
2819                 m->sync_file_index   = file_idx;
2820                 m->sync_stream_index = i;
2821             }
2822         }
2823
2824     if (!m) {
2825         av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2826         exit_program(1);
2827     }
2828
2829     av_freep(&map);
2830     return 0;
2831 }
2832
2833 static void parse_meta_type(char *arg, char *type, int *index)
2834 {
2835     if (*arg == ':') {
2836         *type = *(++arg);
2837         switch (*arg) {
2838         case 'g':
2839             break;
2840         case 's':
2841         case 'c':
2842         case 'p':
2843             if (*(++arg) == ':')
2844                 *index = strtol(++arg, NULL, 0);
2845             break;
2846         default:
2847             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2848             exit_program(1);
2849         }
2850     } else
2851         *type = 'g';
2852 }
2853
2854 static int opt_map_metadata(const char *opt, const char *arg)
2855 {
2856     MetadataMap *m, *m1;
2857     char *p;
2858
2859     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2860                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
2861
2862     m = &meta_data_maps[nb_meta_data_maps - 1][1];
2863     m->file = strtol(arg, &p, 0);
2864     parse_meta_type(p, &m->type, &m->index);
2865
2866     m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2867     if (p = strchr(opt, ':'))
2868         parse_meta_type(p, &m1->type, &m1->index);
2869     else
2870         m1->type = 'g';
2871
2872     if (m->type == 'g' || m1->type == 'g')
2873         metadata_global_autocopy = 0;
2874     if (m->type == 's' || m1->type == 's')
2875         metadata_streams_autocopy = 0;
2876     if (m->type == 'c' || m1->type == 'c')
2877         metadata_chapters_autocopy = 0;
2878
2879     return 0;
2880 }
2881
2882 static int opt_input_ts_scale(const char *opt, const char *arg)
2883 {
2884     return av_dict_set(&ts_scale, opt, arg, 0);
2885 }
2886
2887 static int opt_recording_time(const char *opt, const char *arg)
2888 {
2889     recording_time = parse_time_or_die(opt, arg, 1);
2890     return 0;
2891 }
2892
2893 static int opt_start_time(const char *opt, const char *arg)
2894 {
2895     start_time = parse_time_or_die(opt, arg, 1);
2896     return 0;
2897 }
2898
2899 static int opt_input_ts_offset(const char *opt, const char *arg)
2900 {
2901     input_ts_offset = parse_time_or_die(opt, arg, 1);
2902     return 0;
2903 }
2904
2905 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2906 {
2907     const char *codec_string = encoder ? "encoder" : "decoder";
2908     AVCodec *codec;
2909
2910     if(!name)
2911         return CODEC_ID_NONE;
2912     codec = encoder ?
2913         avcodec_find_encoder_by_name(name) :
2914         avcodec_find_decoder_by_name(name);
2915     if(!codec) {
2916         av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2917         exit_program(1);
2918     }
2919     if(codec->type != type) {
2920         av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2921         exit_program(1);
2922     }
2923     return codec->id;
2924 }
2925
2926 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2927 {
2928     AVDictionaryEntry *e = NULL;
2929     char *codec_name = NULL;
2930     int ret;
2931
2932     while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2933         char *p = strchr(e->key, ':');
2934
2935         if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2936             codec_name = e->value;
2937         else if (ret < 0)
2938             exit_program(1);
2939     }
2940
2941     if (!codec_name) {
2942         if (s->oformat) {
2943             st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2944             return avcodec_find_encoder(st->codec->codec_id);
2945         }
2946     } else if (!strcmp(codec_name, "copy"))
2947         st->stream_copy = 1;
2948     else {
2949         st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2950         return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2951                             avcodec_find_decoder_by_name(codec_name);
2952     }
2953
2954     return NULL;
2955 }
2956
2957 /**
2958  * Add all the streams from the given input file to the global
2959  * list of input streams.
2960  */
2961 static void add_input_streams(AVFormatContext *ic)
2962 {
2963     int i, rfps, rfps_base, ret;
2964
2965     for (i = 0; i < ic->nb_streams; i++) {
2966         AVStream *st = ic->streams[i];
2967         AVCodecContext *dec = st->codec;
2968         AVDictionaryEntry *e = NULL;
2969         InputStream *ist;
2970         char *scale = NULL;
2971
2972         dec->thread_count = thread_count;
2973
2974         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2975         ist = &input_streams[nb_input_streams - 1];
2976         ist->st = st;
2977         ist->file_index = nb_input_files;
2978         ist->discard = 1;
2979         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2980
2981         while (e = av_dict_get(ts_scale, "", e, AV_DICT_IGNORE_SUFFIX)) {
2982             char *p = strchr(e->key, ':');
2983
2984             if ((ret = check_stream_specifier(ic, st, p ? p + 1 : "")) > 0)
2985                 scale = e->value;
2986             else if (ret < 0)
2987                 exit_program(1);
2988         }
2989         if (scale)
2990             ist->ts_scale = strtod(scale, NULL);
2991
2992         ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2993         if (!ist->dec)
2994             ist->dec = avcodec_find_decoder(dec->codec_id);
2995
2996         switch (dec->codec_type) {
2997         case AVMEDIA_TYPE_AUDIO:
2998             if(!ist->dec)
2999                 ist->dec = avcodec_find_decoder(dec->codec_id);
3000             if(audio_disable)
3001                 st->discard= AVDISCARD_ALL;
3002             break;
3003         case AVMEDIA_TYPE_VIDEO:
3004             if(!ist->dec)
3005                 ist->dec = avcodec_find_decoder(dec->codec_id);
3006             rfps      = ic->streams[i]->r_frame_rate.num;
3007             rfps_base = ic->streams[i]->r_frame_rate.den;
3008             if (dec->lowres) {
3009                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3010             }
3011             if(me_threshold)
3012                 dec->debug |= FF_DEBUG_MV;
3013
3014             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3015
3016                 if (verbose >= 0)
3017                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3018                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3019
3020                     (float)rfps / rfps_base, rfps, rfps_base);
3021             }
3022
3023             if(video_disable)
3024                 st->discard= AVDISCARD_ALL;
3025             else if(video_discard)
3026                 st->discard= video_discard;
3027             break;
3028         case AVMEDIA_TYPE_DATA:
3029             break;
3030         case AVMEDIA_TYPE_SUBTITLE:
3031             if(!ist->dec)
3032                 ist->dec = avcodec_find_decoder(dec->codec_id);
3033             if(subtitle_disable)
3034                 st->discard = AVDISCARD_ALL;
3035             break;
3036         case AVMEDIA_TYPE_ATTACHMENT:
3037         case AVMEDIA_TYPE_UNKNOWN:
3038             break;
3039         default:
3040             abort();
3041         }
3042     }
3043 }
3044
3045 static int opt_input_file(const char *opt, const char *filename)
3046 {
3047     AVFormatContext *ic;
3048     AVInputFormat *file_iformat = NULL;
3049     int err, i, ret;
3050     int64_t timestamp;
3051     uint8_t buf[128];
3052     AVDictionary **opts;
3053     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
3054
3055     if (last_asked_format) {
3056         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3057             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3058             exit_program(1);
3059         }
3060         last_asked_format = NULL;
3061     }
3062
3063     if (!strcmp(filename, "-"))
3064         filename = "pipe:";
3065
3066     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3067                     !strcmp(filename, "/dev/stdin");
3068
3069     /* get default parameters from command line */
3070     ic = avformat_alloc_context();
3071     if (!ic) {
3072         print_error(filename, AVERROR(ENOMEM));
3073         exit_program(1);
3074     }
3075     if (audio_sample_rate) {
3076         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3077         av_dict_set(&format_opts, "sample_rate", buf, 0);
3078     }
3079     if (audio_channels) {
3080         snprintf(buf, sizeof(buf), "%d", audio_channels);
3081         av_dict_set(&format_opts, "channels", buf, 0);
3082     }
3083     if (frame_rate.num) {
3084         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3085         av_dict_set(&format_opts, "framerate", buf, 0);
3086     }
3087     if (frame_width && frame_height) {
3088         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3089         av_dict_set(&format_opts, "video_size", buf, 0);
3090     }
3091     if (frame_pix_fmt != PIX_FMT_NONE)
3092         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3093
3094     ic->flags |= AVFMT_FLAG_NONBLOCK;
3095
3096     /* open the input file with generic libav function */
3097     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3098     if (err < 0) {
3099         print_error(filename, err);
3100         exit_program(1);
3101     }
3102     assert_avoptions(format_opts);
3103
3104     if(opt_programid) {
3105         int i, j;
3106         int found=0;
3107         for(i=0; i<ic->nb_streams; i++){
3108             ic->streams[i]->discard= AVDISCARD_ALL;
3109         }
3110         for(i=0; i<ic->nb_programs; i++){
3111             AVProgram *p= ic->programs[i];
3112             if(p->id != opt_programid){
3113                 p->discard = AVDISCARD_ALL;
3114             }else{
3115                 found=1;
3116                 for(j=0; j<p->nb_stream_indexes; j++){
3117                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3118                 }
3119             }
3120         }
3121         if(!found){
3122             fprintf(stderr, "Specified program id not found\n");
3123             exit_program(1);
3124         }
3125         opt_programid=0;
3126     }
3127
3128     /* apply forced codec ids */
3129     for (i = 0; i < ic->nb_streams; i++)
3130         choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3131
3132     /* Set AVCodecContext options for avformat_find_stream_info */
3133     opts = setup_find_stream_info_opts(ic, codec_opts);
3134     orig_nb_streams = ic->nb_streams;
3135
3136     /* If not enough info to get the stream parameters, we decode the
3137        first frames to get it. (used in mpeg case for example) */
3138     ret = avformat_find_stream_info(ic, opts);
3139     if (ret < 0 && verbose >= 0) {
3140         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3141         av_close_input_file(ic);
3142         exit_program(1);
3143     }
3144
3145     timestamp = start_time;
3146     /* add the stream start time */
3147     if (ic->start_time != AV_NOPTS_VALUE)
3148         timestamp += ic->start_time;
3149
3150     /* if seeking requested, we execute it */
3151     if (start_time != 0) {
3152         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3153         if (ret < 0) {
3154             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3155                     filename, (double)timestamp / AV_TIME_BASE);
3156         }
3157         /* reset seek info */
3158         start_time = 0;
3159     }
3160
3161     /* update the current parameters so that they match the one of the input stream */
3162     add_input_streams(ic);
3163
3164     /* dump the file content */
3165     if (verbose >= 0)
3166         av_dump_format(ic, nb_input_files, filename, 0);
3167
3168     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3169     input_files[nb_input_files - 1].ctx        = ic;
3170     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3171     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3172     input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3173
3174     top_field_first = -1;
3175     frame_rate    = (AVRational){0, 0};
3176     frame_pix_fmt = PIX_FMT_NONE;
3177     frame_height = 0;
3178     frame_width  = 0;
3179     audio_sample_rate = 0;
3180     audio_channels    = 0;
3181     audio_sample_fmt  = AV_SAMPLE_FMT_NONE;
3182     av_dict_free(&ts_scale);
3183     input_ts_offset = 0;
3184
3185     for (i = 0; i < orig_nb_streams; i++)
3186         av_dict_free(&opts[i]);
3187     av_freep(&opts);
3188     av_dict_free(&codec_names);
3189     uninit_opts();
3190     init_opts();
3191     return 0;
3192 }
3193
3194 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3195                                     AVCodecContext *avctx)
3196 {
3197     char *p;
3198     int n = 1, i;
3199     int64_t t;
3200
3201     for (p = kf; *p; p++)
3202         if (*p == ',')
3203             n++;
3204     ost->forced_kf_count = n;
3205     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3206     if (!ost->forced_kf_pts) {
3207         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3208         exit_program(1);
3209     }
3210     for (i = 0; i < n; i++) {
3211         p = i ? strchr(p, ',') + 1 : kf;
3212         t = parse_time_or_die("force_key_frames", p, 1);
3213         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3214     }
3215 }
3216
3217 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3218 {
3219     OutputStream *ost;
3220     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3221     int idx      = oc->nb_streams - 1;
3222
3223     if (!st) {
3224         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3225         exit_program(1);
3226     }
3227
3228     output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3229                                 nb_output_streams + 1);
3230     ost = &output_streams[nb_output_streams - 1];
3231     ost->file_index = nb_output_files;
3232     ost->index = idx;
3233     ost->st    = st;
3234     st->codec->codec_type = type;
3235     ost->enc = choose_codec(oc, st, type, codec_names);
3236     if (ost->enc) {
3237         ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3238     }
3239
3240     avcodec_get_context_defaults3(st->codec, ost->enc);
3241     st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3242
3243     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3244     return ost;
3245 }
3246
3247 static OutputStream *new_video_stream(AVFormatContext *oc)
3248 {
3249     AVStream *st;
3250     OutputStream *ost;
3251     AVCodecContext *video_enc;
3252
3253     ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3254     st  = ost->st;
3255     if (!st->stream_copy) {
3256         ost->frame_aspect_ratio = frame_aspect_ratio;
3257         frame_aspect_ratio = 0;
3258 #if CONFIG_AVFILTER
3259         ost->avfilter = vfilters;
3260         vfilters = NULL;
3261 #endif
3262     }
3263
3264     ost->bitstream_filters = video_bitstream_filters;
3265     video_bitstream_filters= NULL;
3266
3267     st->codec->thread_count= thread_count;
3268
3269     video_enc = st->codec;
3270
3271     if(video_codec_tag)
3272         video_enc->codec_tag= video_codec_tag;
3273
3274     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3275         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3276     }
3277
3278     if (st->stream_copy) {
3279         video_enc->sample_aspect_ratio =
3280         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3281     } else {
3282         const char *p;
3283         int i;
3284
3285         if (frame_rate.num)
3286             ost->frame_rate = frame_rate;
3287
3288         video_enc->width = frame_width;
3289         video_enc->height = frame_height;
3290         video_enc->pix_fmt = frame_pix_fmt;
3291         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3292         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3293
3294         if (video_qscale || same_quant) {
3295             video_enc->flags |= CODEC_FLAG_QSCALE;
3296             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3297         }
3298
3299         if(intra_matrix)
3300             video_enc->intra_matrix = intra_matrix;
3301         if(inter_matrix)
3302             video_enc->inter_matrix = inter_matrix;
3303
3304         p= video_rc_override_string;
3305         for(i=0; p; i++){
3306             int start, end, q;
3307             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3308             if(e!=3){
3309                 fprintf(stderr, "error parsing rc_override\n");
3310                 exit_program(1);
3311             }
3312             video_enc->rc_override=
3313                 av_realloc(video_enc->rc_override,
3314                            sizeof(RcOverride)*(i+1));
3315             video_enc->rc_override[i].start_frame= start;
3316             video_enc->rc_override[i].end_frame  = end;
3317             if(q>0){
3318                 video_enc->rc_override[i].qscale= q;
3319                 video_enc->rc_override[i].quality_factor= 1.0;
3320             }
3321             else{
3322                 video_enc->rc_override[i].qscale= 0;
3323                 video_enc->rc_override[i].quality_factor= -q/100.0;
3324             }
3325             p= strchr(p, '/');
3326             if(p) p++;
3327         }
3328         video_enc->rc_override_count=i;
3329         if (!video_enc->rc_initial_buffer_occupancy)
3330             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3331         video_enc->me_threshold= me_threshold;
3332         video_enc->intra_dc_precision= intra_dc_precision - 8;
3333
3334         if (do_psnr)
3335             video_enc->flags|= CODEC_FLAG_PSNR;
3336
3337         /* two pass mode */
3338         if (do_pass) {
3339             if (do_pass == 1) {
3340                 video_enc->flags |= CODEC_FLAG_PASS1;
3341             } else {
3342                 video_enc->flags |= CODEC_FLAG_PASS2;
3343             }
3344         }
3345
3346         if (forced_key_frames)
3347             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3348     }
3349     if (video_language) {
3350         av_dict_set(&st->metadata, "language", video_language, 0);
3351         av_freep(&video_language);
3352     }
3353
3354     /* reset some key parameters */
3355     video_disable = 0;
3356     av_freep(&forced_key_frames);
3357     frame_pix_fmt = PIX_FMT_NONE;
3358     return ost;
3359 }
3360
3361 static OutputStream *new_audio_stream(AVFormatContext *oc)
3362 {
3363     AVStream *st;
3364     OutputStream *ost;
3365     AVCodecContext *audio_enc;
3366
3367     ost = new_output_stream(oc, AVMEDIA_TYPE_AUDIO);
3368     st  = ost->st;
3369
3370     ost->bitstream_filters = audio_bitstream_filters;
3371     audio_bitstream_filters= NULL;
3372
3373     st->codec->thread_count= thread_count;
3374
3375     audio_enc = st->codec;
3376     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3377
3378     if(audio_codec_tag)
3379         audio_enc->codec_tag= audio_codec_tag;
3380
3381     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3382         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3383     }
3384     if (!st->stream_copy) {
3385         if (audio_qscale > QSCALE_NONE) {
3386             audio_enc->flags |= CODEC_FLAG_QSCALE;
3387             audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3388         }
3389         if (audio_channels)
3390             audio_enc->channels = audio_channels;
3391         if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3392             audio_enc->sample_fmt = audio_sample_fmt;
3393         if (audio_sample_rate)
3394             audio_enc->sample_rate = audio_sample_rate;
3395     }
3396     if (audio_language) {
3397         av_dict_set(&st->metadata, "language", audio_language, 0);
3398         av_freep(&audio_language);
3399     }
3400
3401     /* reset some key parameters */
3402     audio_disable = 0;
3403
3404     return ost;
3405 }
3406
3407 static OutputStream *new_data_stream(AVFormatContext *oc)
3408 {
3409     AVStream *st;
3410     OutputStream *ost;
3411     AVCodecContext *data_enc;
3412
3413     ost = new_output_stream(oc, AVMEDIA_TYPE_DATA);
3414     st  = ost->st;
3415     data_enc = st->codec;
3416     if (!st->stream_copy) {
3417         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3418         exit_program(1);
3419     }
3420
3421     if (data_codec_tag)
3422         data_enc->codec_tag= data_codec_tag;
3423
3424     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3425         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3426     }
3427
3428     data_disable = 0;
3429     return ost;
3430 }
3431
3432 static OutputStream *new_subtitle_stream(AVFormatContext *oc)
3433 {
3434     AVStream *st;
3435     OutputStream *ost;
3436     AVCodecContext *subtitle_enc;
3437
3438     ost = new_output_stream(oc, AVMEDIA_TYPE_SUBTITLE);
3439     st  = ost->st;
3440     subtitle_enc = st->codec;
3441
3442     ost->bitstream_filters = subtitle_bitstream_filters;
3443     subtitle_bitstream_filters= NULL;
3444
3445     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3446
3447     if(subtitle_codec_tag)
3448         subtitle_enc->codec_tag= subtitle_codec_tag;
3449
3450     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3451         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3452     }
3453
3454     if (subtitle_language) {
3455         av_dict_set(&st->metadata, "language", subtitle_language, 0);
3456         av_freep(&subtitle_language);
3457     }
3458
3459     subtitle_disable = 0;
3460     return ost;
3461 }
3462
3463 /* arg format is "output-stream-index:streamid-value". */
3464 static int opt_streamid(const char *opt, const char *arg)
3465 {
3466     int idx;
3467     char *p;
3468     char idx_str[16];
3469
3470     av_strlcpy(idx_str, arg, sizeof(idx_str));
3471     p = strchr(idx_str, ':');
3472     if (!p) {
3473         fprintf(stderr,
3474                 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3475                 arg, opt);
3476         exit_program(1);
3477     }
3478     *p++ = '\0';
3479     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
3480     streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3481     streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3482     return 0;
3483 }
3484
3485 static int copy_chapters(int infile, int outfile)
3486 {
3487     AVFormatContext *is = input_files[infile].ctx;
3488     AVFormatContext *os = output_files[outfile].ctx;
3489     int i;
3490
3491     for (i = 0; i < is->nb_chapters; i++) {
3492         AVChapter *in_ch = is->chapters[i], *out_ch;
3493         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
3494                                       AV_TIME_BASE_Q, in_ch->time_base);
3495         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
3496                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3497
3498
3499         if (in_ch->end < ts_off)
3500             continue;
3501         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3502             break;
3503
3504         out_ch = av_mallocz(sizeof(AVChapter));
3505         if (!out_ch)
3506             return AVERROR(ENOMEM);
3507
3508         out_ch->id        = in_ch->id;
3509         out_ch->time_base = in_ch->time_base;
3510         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
3511         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
3512
3513         if (metadata_chapters_autocopy)
3514             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3515
3516         os->nb_chapters++;
3517         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3518         if (!os->chapters)
3519             return AVERROR(ENOMEM);
3520         os->chapters[os->nb_chapters - 1] = out_ch;
3521     }
3522     return 0;
3523 }
3524
3525 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
3526 {
3527     int i, err;
3528     AVFormatContext *ic = NULL;
3529
3530     err = avformat_open_input(&ic, filename, NULL, NULL);
3531     if (err < 0)
3532         return err;
3533     /* copy stream format */
3534     for(i=0;i<ic->nb_streams;i++) {
3535         AVStream *st;
3536         OutputStream *ost;
3537         AVCodec *codec;
3538
3539         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3540         ost   = new_output_stream(s, codec->type);
3541         st    = ost->st;
3542
3543         // FIXME: a more elegant solution is needed
3544         memcpy(st, ic->streams[i], sizeof(AVStream));
3545         st->info = av_malloc(sizeof(*st->info));
3546         memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
3547         avcodec_copy_context(st->codec, ic->streams[i]->codec);
3548
3549         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3550             choose_sample_fmt(st, codec);
3551         else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3552             choose_pixel_fmt(st, codec);
3553     }
3554
3555     av_close_input_file(ic);
3556     return 0;
3557 }
3558
3559 static int opt_output_file(const char *opt, const char *filename)
3560 {
3561     AVFormatContext *oc;
3562     int i, err;
3563     AVOutputFormat *file_oformat;
3564     OutputStream *ost;
3565     InputStream  *ist;
3566
3567     if (!strcmp(filename, "-"))
3568         filename = "pipe:";
3569
3570     err = avformat_alloc_output_context2(&oc, NULL, last_asked_format, filename);
3571     last_asked_format = NULL;
3572     if (!oc) {
3573         print_error(filename, err);
3574         exit_program(1);
3575     }
3576
3577     file_oformat= oc->oformat;
3578
3579     if (!strcmp(file_oformat->name, "ffm") &&
3580         av_strstart(filename, "http:", NULL)) {
3581         /* special case for files sent to ffserver: we get the stream
3582            parameters from ffserver */
3583         int err = read_ffserver_streams(oc, filename);
3584         if (err < 0) {
3585             print_error(filename, err);
3586             exit_program(1);
3587         }
3588     } else if (!nb_stream_maps) {
3589         /* pick the "best" stream of each type */
3590 #define NEW_STREAM(type, index)\
3591         if (index >= 0) {\
3592             ost = new_ ## type ## _stream(oc);\
3593             ost->source_index = index;\
3594             ost->sync_ist     = &input_streams[index];\
3595             input_streams[index].discard = 0;\
3596         }
3597
3598         /* video: highest resolution */
3599         if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3600             int area = 0, idx = -1;
3601             for (i = 0; i < nb_input_streams; i++) {
3602                 ist = &input_streams[i];
3603                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3604                     ist->st->codec->width * ist->st->codec->height > area) {
3605                     area = ist->st->codec->width * ist->st->codec->height;
3606                     idx = i;
3607                 }
3608             }
3609             NEW_STREAM(video, idx);
3610         }
3611
3612         /* audio: most channels */
3613         if (!audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3614             int channels = 0, idx = -1;
3615             for (i = 0; i < nb_input_streams; i++) {
3616                 ist = &input_streams[i];
3617                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3618                     ist->st->codec->channels > channels) {
3619                     channels = ist->st->codec->channels;
3620                     idx = i;
3621                 }
3622             }
3623             NEW_STREAM(audio, idx);
3624         }
3625
3626         /* subtitles: pick first */
3627         if (!subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3628             for (i = 0; i < nb_input_streams; i++)
3629                 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3630                     NEW_STREAM(subtitle, i);
3631                     break;
3632                 }
3633         }
3634         /* do something with data? */
3635     } else {
3636         for (i = 0; i < nb_stream_maps; i++) {
3637             StreamMap *map = &stream_maps[i];
3638
3639             if (map->disabled)
3640                 continue;
3641
3642             ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3643             switch (ist->st->codec->codec_type) {
3644             case AVMEDIA_TYPE_VIDEO:    ost = new_video_stream(oc);    break;
3645             case AVMEDIA_TYPE_AUDIO:    ost = new_audio_stream(oc);    break;
3646             case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(oc); break;
3647             case AVMEDIA_TYPE_DATA:     ost = new_data_stream(oc);     break;
3648             default:
3649                 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3650                        map->file_index, map->stream_index);
3651                 exit_program(1);
3652             }
3653
3654             ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3655             ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3656                                            map->sync_stream_index];
3657             ist->discard = 0;
3658         }
3659     }
3660
3661     av_dict_copy(&oc->metadata, metadata, 0);
3662     av_dict_free(&metadata);
3663
3664
3665     output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
3666     output_files[nb_output_files - 1].ctx       = oc;
3667     output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
3668     output_files[nb_output_files - 1].recording_time = recording_time;
3669     output_files[nb_output_files - 1].start_time     = start_time;
3670     output_files[nb_output_files - 1].limit_filesize = limit_filesize;
3671     av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
3672
3673     /* check filename in case of an image number is expected */
3674     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3675         if (!av_filename_number_test(oc->filename)) {
3676             print_error(oc->filename, AVERROR(EINVAL));