Merge remote-tracking branch 'qatar/master'
[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 = 0;
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     int nb_streams;
257     int64_t ts_offset;
258 } InputFile;
259
260 typedef struct OutputStream {
261     int file_index;          /* file index */
262     int index;               /* stream index in the output file */
263     int source_index;        /* InputStream index */
264     AVStream *st;            /* stream in the output file */
265     int encoding_needed;     /* true if encoding needed for this stream */
266     int frame_number;
267     /* input pts and corresponding output pts
268        for A/V sync */
269     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
270     struct InputStream *sync_ist; /* input stream to sync against */
271     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
272     AVBitStreamFilterContext *bitstream_filters;
273     AVCodec *enc;
274
275     /* video only */
276     int video_resample;
277     AVFrame resample_frame;              /* temporary frame for image resampling */
278     struct SwsContext *img_resample_ctx; /* for image resampling */
279     int resample_height;
280     int resample_width;
281     int resample_pix_fmt;
282     AVRational frame_rate;
283
284     float frame_aspect_ratio;
285
286     /* forced key frames */
287     int64_t *forced_kf_pts;
288     int forced_kf_count;
289     int forced_kf_index;
290
291     /* audio only */
292     int audio_resample;
293     ReSampleContext *resample; /* for audio resampling */
294     int resample_sample_fmt;
295     int resample_channels;
296     int resample_sample_rate;
297     int reformat_pair;
298     AVAudioConvert *reformat_ctx;
299     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
300     FILE *logfile;
301
302 #if CONFIG_AVFILTER
303     AVFilterContext *output_video_filter;
304     AVFilterContext *input_video_filter;
305     AVFilterBufferRef *picref;
306     char *avfilter;
307     AVFilterGraph *graph;
308 #endif
309
310    int sws_flags;
311    AVDictionary *opts;
312    int is_past_recording_time;
313 } OutputStream;
314
315 #if HAVE_TERMIOS_H
316
317 /* init terminal so that we can grab keys */
318 static struct termios oldtty;
319 #endif
320
321 typedef struct OutputFile {
322     AVFormatContext *ctx;
323     AVDictionary *opts;
324     int ost_index;       /* index of the first stream in output_streams */
325     int64_t recording_time; /* desired length of the resulting file in microseconds */
326     int64_t start_time;     /* start time in microseconds */
327 } OutputFile;
328
329 static InputStream *input_streams = NULL;
330 static int         nb_input_streams = 0;
331 static InputFile   *input_files   = NULL;
332 static int         nb_input_files   = 0;
333
334 static OutputStream *output_streams = NULL;
335 static int        nb_output_streams = 0;
336 static OutputFile   *output_files   = NULL;
337 static int        nb_output_files   = 0;
338
339 #if CONFIG_AVFILTER
340
341 static int configure_video_filters(InputStream *ist, OutputStream *ost)
342 {
343     AVFilterContext *last_filter, *filter;
344     /** filter graph containing all filters including input & output */
345     AVCodecContext *codec = ost->st->codec;
346     AVCodecContext *icodec = ist->st->codec;
347     enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE };
348     AVRational sample_aspect_ratio;
349     char args[255];
350     int ret;
351
352     ost->graph = avfilter_graph_alloc();
353
354     if (ist->st->sample_aspect_ratio.num){
355         sample_aspect_ratio = ist->st->sample_aspect_ratio;
356     }else
357         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
358
359     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
360              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
361              sample_aspect_ratio.num, sample_aspect_ratio.den);
362
363     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
364                                        "src", args, NULL, ost->graph);
365     if (ret < 0)
366         return ret;
367     ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
368                                        "out", NULL, pix_fmts, ost->graph);
369     if (ret < 0)
370         return ret;
371     last_filter = ost->input_video_filter;
372
373     if (codec->width  != icodec->width || codec->height != icodec->height) {
374         snprintf(args, 255, "%d:%d:flags=0x%X",
375                  codec->width,
376                  codec->height,
377                  ost->sws_flags);
378         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
379                                                 NULL, args, NULL, ost->graph)) < 0)
380             return ret;
381         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
382             return ret;
383         last_filter = filter;
384     }
385
386     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
387     ost->graph->scale_sws_opts = av_strdup(args);
388
389     if (ost->avfilter) {
390         AVFilterInOut *outputs = avfilter_inout_alloc();
391         AVFilterInOut *inputs  = avfilter_inout_alloc();
392
393         outputs->name    = av_strdup("in");
394         outputs->filter_ctx = last_filter;
395         outputs->pad_idx = 0;
396         outputs->next    = NULL;
397
398         inputs->name    = av_strdup("out");
399         inputs->filter_ctx = ost->output_video_filter;
400         inputs->pad_idx = 0;
401         inputs->next    = NULL;
402
403         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0)
404             return ret;
405         av_freep(&ost->avfilter);
406     } else {
407         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
408             return ret;
409     }
410
411     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
412         return ret;
413
414     codec->width  = ost->output_video_filter->inputs[0]->w;
415     codec->height = ost->output_video_filter->inputs[0]->h;
416     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
417         ost->frame_aspect_ratio ? // overridden by the -aspect cli option
418         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
419         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
420
421     return 0;
422 }
423 #endif /* CONFIG_AVFILTER */
424
425 static void term_exit(void)
426 {
427     av_log(NULL, AV_LOG_QUIET, "%s", "");
428 #if HAVE_TERMIOS_H
429     if(!run_as_daemon)
430         tcsetattr (0, TCSANOW, &oldtty);
431 #endif
432 }
433
434 static volatile int received_sigterm = 0;
435
436 static void
437 sigterm_handler(int sig)
438 {
439     received_sigterm = sig;
440     q_pressed++;
441     term_exit();
442 }
443
444 static void term_init(void)
445 {
446 #if HAVE_TERMIOS_H
447     if(!run_as_daemon){
448     struct termios tty;
449
450     tcgetattr (0, &tty);
451     oldtty = tty;
452     atexit(term_exit);
453
454     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
455                           |INLCR|IGNCR|ICRNL|IXON);
456     tty.c_oflag |= OPOST;
457     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
458     tty.c_cflag &= ~(CSIZE|PARENB);
459     tty.c_cflag |= CS8;
460     tty.c_cc[VMIN] = 1;
461     tty.c_cc[VTIME] = 0;
462
463     tcsetattr (0, TCSANOW, &tty);
464     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
465     }
466 #endif
467
468     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
469     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
470 #ifdef SIGXCPU
471     signal(SIGXCPU, sigterm_handler);
472 #endif
473 }
474
475 /* read a key without blocking */
476 static int read_key(void)
477 {
478 #if HAVE_TERMIOS_H
479     int n = 1;
480     unsigned char ch;
481     struct timeval tv;
482     fd_set rfds;
483
484     if(run_as_daemon)
485         return -1;
486
487     FD_ZERO(&rfds);
488     FD_SET(0, &rfds);
489     tv.tv_sec = 0;
490     tv.tv_usec = 0;
491     n = select(1, &rfds, NULL, NULL, &tv);
492     if (n > 0) {
493         n = read(0, &ch, 1);
494         if (n == 1)
495             return ch;
496
497         return n;
498     }
499 #elif HAVE_KBHIT
500     if(kbhit())
501         return(getch());
502 #endif
503     return -1;
504 }
505
506 static int decode_interrupt_cb(void)
507 {
508     q_pressed += read_key() == 'q';
509     return q_pressed > 1;
510 }
511
512 static int exit_program(int ret)
513 {
514     int i;
515
516     /* close files */
517     for(i=0;i<nb_output_files;i++) {
518         AVFormatContext *s = output_files[i].ctx;
519         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
520             avio_close(s->pb);
521         avformat_free_context(s);
522         av_dict_free(&output_files[i].opts);
523     }
524     for(i=0;i<nb_input_files;i++) {
525         av_close_input_file(input_files[i].ctx);
526     }
527     for (i = 0; i < nb_input_streams; i++)
528         av_dict_free(&input_streams[i].opts);
529
530     av_free(intra_matrix);
531     av_free(inter_matrix);
532
533     if (vstats_file)
534         fclose(vstats_file);
535     av_free(vstats_filename);
536
537     av_free(meta_data_maps);
538
539     av_freep(&input_streams);
540     av_freep(&input_files);
541     av_freep(&output_streams);
542     av_freep(&output_files);
543
544     uninit_opts();
545     av_free(audio_buf);
546     av_free(audio_out);
547     allocated_audio_buf_size= allocated_audio_out_size= 0;
548     av_free(samples);
549
550 #if CONFIG_AVFILTER
551     avfilter_uninit();
552 #endif
553
554     if (received_sigterm) {
555         fprintf(stderr,
556             "Received signal %d: terminating.\n",
557             (int) received_sigterm);
558         exit (255);
559     }
560
561     exit(ret); /* not all OS-es handle main() return value */
562     return ret;
563 }
564
565 static void assert_avoptions(AVDictionary *m)
566 {
567     AVDictionaryEntry *t;
568     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
569         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
570         exit_program(1);
571     }
572 }
573
574 static void assert_codec_experimental(AVCodecContext *c, int encoder)
575 {
576     const char *codec_string = encoder ? "encoder" : "decoder";
577     AVCodec *codec;
578     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
579         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
580         av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
581                 "results.\nAdd '-strict experimental' if you want to use it.\n",
582                 codec_string, c->codec->name);
583         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
584         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
585             av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
586                    codec_string, codec->name);
587         exit_program(1);
588     }
589 }
590
591 /* similar to ff_dynarray_add() and av_fast_realloc() */
592 static void *grow_array(void *array, int elem_size, int *size, int new_size)
593 {
594     if (new_size >= INT_MAX / elem_size) {
595         fprintf(stderr, "Array too big.\n");
596         exit_program(1);
597     }
598     if (*size < new_size) {
599         uint8_t *tmp = av_realloc(array, new_size*elem_size);
600         if (!tmp) {
601             fprintf(stderr, "Could not alloc buffer.\n");
602             exit_program(1);
603         }
604         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
605         *size = new_size;
606         return tmp;
607     }
608     return array;
609 }
610
611 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
612 {
613     if(codec && codec->sample_fmts){
614         const enum AVSampleFormat *p= codec->sample_fmts;
615         for(; *p!=-1; p++){
616             if(*p == st->codec->sample_fmt)
617                 break;
618         }
619         if (*p == -1) {
620             if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
621                 av_log(NULL, AV_LOG_ERROR, "Convertion will not be lossless'\n");
622             if(av_get_sample_fmt_name(st->codec->sample_fmt))
623             av_log(NULL, AV_LOG_WARNING,
624                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
625                    av_get_sample_fmt_name(st->codec->sample_fmt),
626                    codec->name,
627                    av_get_sample_fmt_name(codec->sample_fmts[0]));
628             st->codec->sample_fmt = codec->sample_fmts[0];
629         }
630     }
631 }
632
633 static void choose_sample_rate(AVStream *st, AVCodec *codec)
634 {
635     if(codec && codec->supported_samplerates){
636         const int *p= codec->supported_samplerates;
637         int best=0;
638         int best_dist=INT_MAX;
639         for(; *p; p++){
640             int dist= abs(st->codec->sample_rate - *p);
641             if(dist < best_dist){
642                 best_dist= dist;
643                 best= *p;
644             }
645         }
646         if(best_dist){
647             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
648         }
649         st->codec->sample_rate= best;
650     }
651 }
652
653 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
654 {
655     if(codec && codec->pix_fmts){
656         const enum PixelFormat *p= codec->pix_fmts;
657         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
658             if(st->codec->codec_id==CODEC_ID_MJPEG){
659                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
660             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
661                 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};
662             }
663         }
664         for(; *p!=-1; p++){
665             if(*p == st->codec->pix_fmt)
666                 break;
667         }
668         if (*p == -1) {
669             if(st->codec->pix_fmt != PIX_FMT_NONE)
670                 av_log(NULL, AV_LOG_WARNING,
671                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
672                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
673                         codec->name,
674                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
675             st->codec->pix_fmt = codec->pix_fmts[0];
676         }
677     }
678 }
679
680 static double
681 get_sync_ipts(const OutputStream *ost)
682 {
683     const InputStream *ist = ost->sync_ist;
684     OutputFile *of = &output_files[ost->file_index];
685     return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
686 }
687
688 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
689     int ret;
690
691     while(bsfc){
692         AVPacket new_pkt= *pkt;
693         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
694                                           &new_pkt.data, &new_pkt.size,
695                                           pkt->data, pkt->size,
696                                           pkt->flags & AV_PKT_FLAG_KEY);
697         if(a>0){
698             av_free_packet(pkt);
699             new_pkt.destruct= av_destruct_packet;
700         } else if(a<0){
701             fprintf(stderr, "%s failed for stream %d, codec %s",
702                     bsfc->filter->name, pkt->stream_index,
703                     avctx->codec ? avctx->codec->name : "copy");
704             print_error("", a);
705             if (exit_on_error)
706                 exit_program(1);
707         }
708         *pkt= new_pkt;
709
710         bsfc= bsfc->next;
711     }
712
713     ret= av_interleaved_write_frame(s, pkt);
714     if(ret < 0){
715         print_error("av_interleaved_write_frame()", ret);
716         exit_program(1);
717     }
718 }
719
720 static void do_audio_out(AVFormatContext *s,
721                          OutputStream *ost,
722                          InputStream *ist,
723                          unsigned char *buf, int size)
724 {
725     uint8_t *buftmp;
726     int64_t audio_out_size, audio_buf_size;
727     int64_t allocated_for_size= size;
728
729     int size_out, frame_bytes, ret, resample_changed;
730     AVCodecContext *enc= ost->st->codec;
731     AVCodecContext *dec= ist->st->codec;
732     int osize = av_get_bytes_per_sample(enc->sample_fmt);
733     int isize = av_get_bytes_per_sample(dec->sample_fmt);
734     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
735
736 need_realloc:
737     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
738     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
739     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
740     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
741     audio_buf_size*= osize*enc->channels;
742
743     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
744     if(coded_bps > 8*osize)
745         audio_out_size= audio_out_size * coded_bps / (8*osize);
746     audio_out_size += FF_MIN_BUFFER_SIZE;
747
748     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
749         fprintf(stderr, "Buffer sizes too large\n");
750         exit_program(1);
751     }
752
753     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
754     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
755     if (!audio_buf || !audio_out){
756         fprintf(stderr, "Out of memory in do_audio_out\n");
757         exit_program(1);
758     }
759
760     if (enc->channels != dec->channels)
761         ost->audio_resample = 1;
762
763     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
764                        ost->resample_channels    != dec->channels   ||
765                        ost->resample_sample_rate != dec->sample_rate;
766
767     if ((ost->audio_resample && !ost->resample) || resample_changed) {
768         if (resample_changed) {
769             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",
770                    ist->file_index, ist->st->index,
771                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
772                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
773             ost->resample_sample_fmt  = dec->sample_fmt;
774             ost->resample_channels    = dec->channels;
775             ost->resample_sample_rate = dec->sample_rate;
776             if (ost->resample)
777                 audio_resample_close(ost->resample);
778         }
779         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
780         if (audio_sync_method <= 1 &&
781             ost->resample_sample_fmt  == enc->sample_fmt &&
782             ost->resample_channels    == enc->channels   &&
783             ost->resample_sample_rate == enc->sample_rate) {
784             ost->resample = NULL;
785             ost->audio_resample = 0;
786         } else {
787             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
788                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
789             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
790                                                    enc->sample_rate, dec->sample_rate,
791                                                    enc->sample_fmt,  dec->sample_fmt,
792                                                    16, 10, 0, 0.8);
793             if (!ost->resample) {
794                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
795                         dec->channels, dec->sample_rate,
796                         enc->channels, enc->sample_rate);
797                 exit_program(1);
798             }
799         }
800     }
801
802 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
803     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
804         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
805         if (ost->reformat_ctx)
806             av_audio_convert_free(ost->reformat_ctx);
807         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
808                                                    dec->sample_fmt, 1, NULL, 0);
809         if (!ost->reformat_ctx) {
810             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
811                 av_get_sample_fmt_name(dec->sample_fmt),
812                 av_get_sample_fmt_name(enc->sample_fmt));
813             exit_program(1);
814         }
815         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
816     }
817
818     if(audio_sync_method){
819         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
820                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
821         double idelta= delta*dec->sample_rate / enc->sample_rate;
822         int byte_delta= ((int)idelta)*2*dec->channels;
823
824         //FIXME resample delay
825         if(fabs(delta) > 50){
826             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
827                 if(byte_delta < 0){
828                     byte_delta= FFMAX(byte_delta, -size);
829                     size += byte_delta;
830                     buf  -= byte_delta;
831                     if(verbose > 2)
832                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
833                     if(!size)
834                         return;
835                     ist->is_start=0;
836                 }else{
837                     static uint8_t *input_tmp= NULL;
838                     input_tmp= av_realloc(input_tmp, byte_delta + size);
839
840                     if(byte_delta > allocated_for_size - size){
841                         allocated_for_size= byte_delta + (int64_t)size;
842                         goto need_realloc;
843                     }
844                     ist->is_start=0;
845
846                     memset(input_tmp, 0, byte_delta);
847                     memcpy(input_tmp + byte_delta, buf, size);
848                     buf= input_tmp;
849                     size += byte_delta;
850                     if(verbose > 2)
851                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
852                 }
853             }else if(audio_sync_method>1){
854                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
855                 av_assert0(ost->audio_resample);
856                 if(verbose > 2)
857                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
858 //                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));
859                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
860             }
861         }
862     }else
863         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
864                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
865
866     if (ost->audio_resample) {
867         buftmp = audio_buf;
868         size_out = audio_resample(ost->resample,
869                                   (short *)buftmp, (short *)buf,
870                                   size / (dec->channels * isize));
871         size_out = size_out * enc->channels * osize;
872     } else {
873         buftmp = buf;
874         size_out = size;
875     }
876
877     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
878         const void *ibuf[6]= {buftmp};
879         void *obuf[6]= {audio_buf};
880         int istride[6]= {isize};
881         int ostride[6]= {osize};
882         int len= size_out/istride[0];
883         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
884             printf("av_audio_convert() failed\n");
885             if (exit_on_error)
886                 exit_program(1);
887             return;
888         }
889         buftmp = audio_buf;
890         size_out = len*osize;
891     }
892
893     /* now encode as many frames as possible */
894     if (enc->frame_size > 1) {
895         /* output resampled raw samples */
896         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
897             fprintf(stderr, "av_fifo_realloc2() failed\n");
898             exit_program(1);
899         }
900         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
901
902         frame_bytes = enc->frame_size * osize * enc->channels;
903
904         while (av_fifo_size(ost->fifo) >= frame_bytes) {
905             AVPacket pkt;
906             av_init_packet(&pkt);
907
908             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
909
910             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
911
912             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
913                                        (short *)audio_buf);
914             if (ret < 0) {
915                 fprintf(stderr, "Audio encoding failed\n");
916                 exit_program(1);
917             }
918             audio_size += ret;
919             pkt.stream_index= ost->index;
920             pkt.data= audio_out;
921             pkt.size= ret;
922             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
923                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
924             pkt.flags |= AV_PKT_FLAG_KEY;
925             write_frame(s, &pkt, enc, ost->bitstream_filters);
926
927             ost->sync_opts += enc->frame_size;
928         }
929     } else {
930         AVPacket pkt;
931         av_init_packet(&pkt);
932
933         ost->sync_opts += size_out / (osize * enc->channels);
934
935         /* output a pcm frame */
936         /* determine the size of the coded buffer */
937         size_out /= osize;
938         if (coded_bps)
939             size_out = size_out*coded_bps/8;
940
941         if(size_out > audio_out_size){
942             fprintf(stderr, "Internal error, buffer size too small\n");
943             exit_program(1);
944         }
945
946         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
947         ret = avcodec_encode_audio(enc, audio_out, size_out,
948                                    (short *)buftmp);
949         if (ret < 0) {
950             fprintf(stderr, "Audio encoding failed\n");
951             exit_program(1);
952         }
953         audio_size += ret;
954         pkt.stream_index= ost->index;
955         pkt.data= audio_out;
956         pkt.size= ret;
957         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
958             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
959         pkt.flags |= AV_PKT_FLAG_KEY;
960         write_frame(s, &pkt, enc, ost->bitstream_filters);
961     }
962 }
963
964 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
965 {
966     AVCodecContext *dec;
967     AVPicture *picture2;
968     AVPicture picture_tmp;
969     uint8_t *buf = 0;
970
971     dec = ist->st->codec;
972
973     /* deinterlace : must be done before any resize */
974     if (do_deinterlace) {
975         int size;
976
977         /* create temporary picture */
978         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
979         buf = av_malloc(size);
980         if (!buf)
981             return;
982
983         picture2 = &picture_tmp;
984         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
985
986         if(avpicture_deinterlace(picture2, picture,
987                                  dec->pix_fmt, dec->width, dec->height) < 0) {
988             /* if error, do not deinterlace */
989             fprintf(stderr, "Deinterlacing failed\n");
990             av_free(buf);
991             buf = NULL;
992             picture2 = picture;
993         }
994     } else {
995         picture2 = picture;
996     }
997
998     if (picture != picture2)
999         *picture = *picture2;
1000     *bufp = buf;
1001 }
1002
1003 static void do_subtitle_out(AVFormatContext *s,
1004                             OutputStream *ost,
1005                             InputStream *ist,
1006                             AVSubtitle *sub,
1007                             int64_t pts)
1008 {
1009     static uint8_t *subtitle_out = NULL;
1010     int subtitle_out_max_size = 1024 * 1024;
1011     int subtitle_out_size, nb, i;
1012     AVCodecContext *enc;
1013     AVPacket pkt;
1014
1015     if (pts == AV_NOPTS_VALUE) {
1016         fprintf(stderr, "Subtitle packets must have a pts\n");
1017         if (exit_on_error)
1018             exit_program(1);
1019         return;
1020     }
1021
1022     enc = ost->st->codec;
1023
1024     if (!subtitle_out) {
1025         subtitle_out = av_malloc(subtitle_out_max_size);
1026     }
1027
1028     /* Note: DVB subtitle need one packet to draw them and one other
1029        packet to clear them */
1030     /* XXX: signal it in the codec context ? */
1031     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1032         nb = 2;
1033     else
1034         nb = 1;
1035
1036     for(i = 0; i < nb; i++) {
1037         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1038         // start_display_time is required to be 0
1039         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1040         sub->end_display_time -= sub->start_display_time;
1041         sub->start_display_time = 0;
1042         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1043                                                     subtitle_out_max_size, sub);
1044         if (subtitle_out_size < 0) {
1045             fprintf(stderr, "Subtitle encoding failed\n");
1046             exit_program(1);
1047         }
1048
1049         av_init_packet(&pkt);
1050         pkt.stream_index = ost->index;
1051         pkt.data = subtitle_out;
1052         pkt.size = subtitle_out_size;
1053         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1054         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1055             /* XXX: the pts correction is handled here. Maybe handling
1056                it in the codec would be better */
1057             if (i == 0)
1058                 pkt.pts += 90 * sub->start_display_time;
1059             else
1060                 pkt.pts += 90 * sub->end_display_time;
1061         }
1062         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1063     }
1064 }
1065
1066 static int bit_buffer_size= 1024*256;
1067 static uint8_t *bit_buffer= NULL;
1068
1069 static void do_video_resample(OutputStream *ost,
1070                               InputStream *ist,
1071                               AVFrame *in_picture,
1072                               AVFrame **out_picture)
1073 {
1074     int resample_changed = 0;
1075     AVCodecContext *dec = ist->st->codec;
1076     *out_picture = in_picture;
1077
1078     resample_changed = ost->resample_width   != dec->width  ||
1079                        ost->resample_height  != dec->height ||
1080                        ost->resample_pix_fmt != dec->pix_fmt;
1081
1082 #if !CONFIG_AVFILTER
1083     if (resample_changed) {
1084         av_log(NULL, AV_LOG_INFO,
1085                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1086                ist->file_index, ist->st->index,
1087                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1088                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1089         ost->resample_width   = dec->width;
1090         ost->resample_height  = dec->height;
1091         ost->resample_pix_fmt = dec->pix_fmt;
1092     }
1093
1094     ost->video_resample = dec->width   != enc->width  ||
1095                           dec->height  != enc->height ||
1096                           dec->pix_fmt != enc->pix_fmt;
1097
1098     if (ost->video_resample) {
1099         *out_picture = &ost->resample_frame;
1100         if (!ost->img_resample_ctx || resample_changed) {
1101             /* initialize the destination picture */
1102             if (!ost->resample_frame.data[0]) {
1103                 avcodec_get_frame_defaults(&ost->resample_frame);
1104                 if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
1105                                     enc->width, enc->height)) {
1106                     fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1107                     exit_program(1);
1108                 }
1109             }
1110             /* initialize a new scaler context */
1111             sws_freeContext(ost->img_resample_ctx);
1112             ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt,
1113                                                    enc->width, enc->height, enc->pix_fmt,
1114                                                    ost->sws_flags, NULL, NULL, NULL);
1115             if (ost->img_resample_ctx == NULL) {
1116                 fprintf(stderr, "Cannot get resampling context\n");
1117                 exit_program(1);
1118             }
1119         }
1120         sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1121               0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1122     }
1123 #else
1124     if (resample_changed) {
1125         avfilter_graph_free(&ost->graph);
1126         if (configure_video_filters(ist, ost)) {
1127             fprintf(stderr, "Error reinitializing filters!\n");
1128             exit_program(1);
1129         }
1130     }
1131 #endif
1132     if (resample_changed) {
1133         ost->resample_width   = dec->width;
1134         ost->resample_height  = dec->height;
1135         ost->resample_pix_fmt = dec->pix_fmt;
1136     }
1137 }
1138
1139
1140 static void do_video_out(AVFormatContext *s,
1141                          OutputStream *ost,
1142                          InputStream *ist,
1143                          AVFrame *in_picture,
1144                          int *frame_size, float quality)
1145 {
1146     int nb_frames, i, ret, format_video_sync;
1147     AVFrame *final_picture;
1148     AVCodecContext *enc, *dec;
1149     double sync_ipts;
1150
1151     enc = ost->st->codec;
1152     dec = ist->st->codec;
1153
1154     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1155
1156     /* by default, we output a single frame */
1157     nb_frames = 1;
1158
1159     *frame_size = 0;
1160
1161     format_video_sync = video_sync_method;
1162     if (format_video_sync < 0)
1163         format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1164
1165     if (format_video_sync) {
1166         double vdelta = sync_ipts - ost->sync_opts;
1167         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1168         if (vdelta < -1.1)
1169             nb_frames = 0;
1170         else if (format_video_sync == 2) {
1171             if(vdelta<=-0.6){
1172                 nb_frames=0;
1173             }else if(vdelta>0.6)
1174                 ost->sync_opts= lrintf(sync_ipts);
1175         }else if (vdelta > 1.1)
1176             nb_frames = lrintf(vdelta);
1177 //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);
1178         if (nb_frames == 0){
1179             ++nb_frames_drop;
1180             if (verbose>2)
1181                 fprintf(stderr, "*** drop!\n");
1182         }else if (nb_frames > 1) {
1183             nb_frames_dup += nb_frames - 1;
1184             if (verbose>2)
1185                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1186         }
1187     }else
1188         ost->sync_opts= lrintf(sync_ipts);
1189
1190     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1191     if (nb_frames <= 0)
1192         return;
1193
1194     do_video_resample(ost, ist, in_picture, &final_picture);
1195
1196     /* duplicates frame if needed */
1197     for(i=0;i<nb_frames;i++) {
1198         AVPacket pkt;
1199         av_init_packet(&pkt);
1200         pkt.stream_index= ost->index;
1201
1202         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1203             /* raw pictures are written as AVPicture structure to
1204                avoid any copies. We support temporarily the older
1205                method. */
1206             AVFrame* old_frame = enc->coded_frame;
1207             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1208             pkt.data= (uint8_t *)final_picture;
1209             pkt.size=  sizeof(AVPicture);
1210             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1211             pkt.flags |= AV_PKT_FLAG_KEY;
1212
1213             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1214             enc->coded_frame = old_frame;
1215         } else {
1216             AVFrame big_picture;
1217
1218             big_picture= *final_picture;
1219             /* better than nothing: use input picture interlaced
1220                settings */
1221             big_picture.interlaced_frame = in_picture->interlaced_frame;
1222             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1223                 if(top_field_first == -1)
1224                     big_picture.top_field_first = in_picture->top_field_first;
1225                 else
1226                     big_picture.top_field_first = top_field_first;
1227             }
1228
1229             /* handles same_quant here. This is not correct because it may
1230                not be a global option */
1231             big_picture.quality = quality;
1232             if(!me_threshold)
1233                 big_picture.pict_type = 0;
1234 //            big_picture.pts = AV_NOPTS_VALUE;
1235             big_picture.pts= ost->sync_opts;
1236 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1237 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1238             if (ost->forced_kf_index < ost->forced_kf_count &&
1239                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1240                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1241                 ost->forced_kf_index++;
1242             }
1243             ret = avcodec_encode_video(enc,
1244                                        bit_buffer, bit_buffer_size,
1245                                        &big_picture);
1246             if (ret < 0) {
1247                 fprintf(stderr, "Video encoding failed\n");
1248                 exit_program(1);
1249             }
1250
1251             if(ret>0){
1252                 pkt.data= bit_buffer;
1253                 pkt.size= ret;
1254                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1255                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1256 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1257    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1258    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1259
1260                 if(enc->coded_frame->key_frame)
1261                     pkt.flags |= AV_PKT_FLAG_KEY;
1262                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1263                 *frame_size = ret;
1264                 video_size += ret;
1265                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1266                 //        enc->frame_number-1, ret, enc->pict_type);
1267                 /* if two pass, output log */
1268                 if (ost->logfile && enc->stats_out) {
1269                     fprintf(ost->logfile, "%s", enc->stats_out);
1270                 }
1271             }
1272         }
1273         ost->sync_opts++;
1274         ost->frame_number++;
1275     }
1276 }
1277
1278 static double psnr(double d){
1279     return -10.0*log(d)/log(10.0);
1280 }
1281
1282 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1283                            int frame_size)
1284 {
1285     AVCodecContext *enc;
1286     int frame_number;
1287     double ti1, bitrate, avg_bitrate;
1288
1289     /* this is executed just the first time do_video_stats is called */
1290     if (!vstats_file) {
1291         vstats_file = fopen(vstats_filename, "w");
1292         if (!vstats_file) {
1293             perror("fopen");
1294             exit_program(1);
1295         }
1296     }
1297
1298     enc = ost->st->codec;
1299     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1300         frame_number = ost->frame_number;
1301         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1302         if (enc->flags&CODEC_FLAG_PSNR)
1303             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1304
1305         fprintf(vstats_file,"f_size= %6d ", frame_size);
1306         /* compute pts value */
1307         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1308         if (ti1 < 0.01)
1309             ti1 = 0.01;
1310
1311         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1312         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1313         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1314             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1315         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1316     }
1317 }
1318
1319 static void print_report(OutputFile *output_files,
1320                          OutputStream *ost_table, int nb_ostreams,
1321                          int is_last_report, int64_t timer_start)
1322 {
1323     char buf[1024];
1324     OutputStream *ost;
1325     AVFormatContext *oc;
1326     int64_t total_size;
1327     AVCodecContext *enc;
1328     int frame_number, vid, i;
1329     double bitrate;
1330     int64_t pts = INT64_MAX;
1331     static int64_t last_time = -1;
1332     static int qp_histogram[52];
1333
1334     if (!is_last_report) {
1335         int64_t cur_time;
1336         /* display the report every 0.5 seconds */
1337         cur_time = av_gettime();
1338         if (last_time == -1) {
1339             last_time = cur_time;
1340             return;
1341         }
1342         if ((cur_time - last_time) < 500000)
1343             return;
1344         last_time = cur_time;
1345     }
1346
1347
1348     oc = output_files[0].ctx;
1349
1350     total_size = avio_size(oc->pb);
1351     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1352         total_size= avio_tell(oc->pb);
1353
1354     buf[0] = '\0';
1355     vid = 0;
1356     for(i=0;i<nb_ostreams;i++) {
1357         float q = -1;
1358         ost = &ost_table[i];
1359         enc = ost->st->codec;
1360         if (!ost->st->stream_copy && enc->coded_frame)
1361             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1362         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1363             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1364         }
1365         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1366             float t = (av_gettime()-timer_start) / 1000000.0;
1367
1368             frame_number = ost->frame_number;
1369             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1370                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1371             if(is_last_report)
1372                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1373             if(qp_hist){
1374                 int j;
1375                 int qp = lrintf(q);
1376                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1377                     qp_histogram[qp]++;
1378                 for(j=0; j<32; j++)
1379                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1380             }
1381             if (enc->flags&CODEC_FLAG_PSNR){
1382                 int j;
1383                 double error, error_sum=0;
1384                 double scale, scale_sum=0;
1385                 char type[3]= {'Y','U','V'};
1386                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1387                 for(j=0; j<3; j++){
1388                     if(is_last_report){
1389                         error= enc->error[j];
1390                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1391                     }else{
1392                         error= enc->coded_frame->error[j];
1393                         scale= enc->width*enc->height*255.0*255.0;
1394                     }
1395                     if(j) scale/=4;
1396                     error_sum += error;
1397                     scale_sum += scale;
1398                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1399                 }
1400                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1401             }
1402             vid = 1;
1403         }
1404         /* compute min output value */
1405         pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
1406                                       ost->st->time_base, AV_TIME_BASE_Q));
1407     }
1408
1409     if (verbose > 0 || is_last_report) {
1410         int hours, mins, secs, us;
1411         secs = pts / AV_TIME_BASE;
1412         us = pts % AV_TIME_BASE;
1413         mins = secs / 60;
1414         secs %= 60;
1415         hours = mins / 60;
1416         mins %= 60;
1417
1418         bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1419
1420         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1421                  "size=%8.0fkB time=", total_size / 1024.0);
1422         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1423                  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1424                  (100 * us) / AV_TIME_BASE);
1425         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1426                  "bitrate=%6.1fkbits/s", bitrate);
1427
1428         if (nb_frames_dup || nb_frames_drop)
1429           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1430                   nb_frames_dup, nb_frames_drop);
1431
1432         if (verbose >= 0)
1433             fprintf(stderr, "%s    \r", buf);
1434
1435         fflush(stderr);
1436     }
1437
1438     if (is_last_report && verbose >= 0){
1439         int64_t raw= audio_size + video_size + extra_size;
1440         fprintf(stderr, "\n");
1441         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1442                 video_size/1024.0,
1443                 audio_size/1024.0,
1444                 extra_size/1024.0,
1445                 100.0*(total_size - raw)/raw
1446         );
1447     }
1448 }
1449
1450 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1451 {
1452     int fill_char = 0x00;
1453     if (sample_fmt == AV_SAMPLE_FMT_U8)
1454         fill_char = 0x80;
1455     memset(buf, fill_char, size);
1456 }
1457
1458 static void flush_encoders(int ist_index, OutputStream *ost_table, int nb_ostreams)
1459 {
1460     int i, ret;
1461
1462     for (i = 0; i < nb_ostreams; i++) {
1463         OutputStream   *ost = &ost_table[i];
1464         AVCodecContext *enc = ost->st->codec;
1465         AVFormatContext *os = output_files[ost->file_index].ctx;
1466
1467         if (ost->source_index != ist_index || !ost->encoding_needed)
1468             continue;
1469
1470         if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1471             continue;
1472         if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1473             continue;
1474
1475         for(;;) {
1476             AVPacket pkt;
1477             int fifo_bytes;
1478             av_init_packet(&pkt);
1479             pkt.stream_index= ost->index;
1480
1481             switch (ost->st->codec->codec_type) {
1482             case AVMEDIA_TYPE_AUDIO:
1483                 fifo_bytes = av_fifo_size(ost->fifo);
1484                 ret = 0;
1485                 /* encode any samples remaining in fifo */
1486                 if (fifo_bytes > 0) {
1487                     int osize = av_get_bytes_per_sample(enc->sample_fmt);
1488                     int fs_tmp = enc->frame_size;
1489
1490                     av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1491                     if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1492                         enc->frame_size = fifo_bytes / (osize * enc->channels);
1493                     } else { /* pad */
1494                         int frame_bytes = enc->frame_size*osize*enc->channels;
1495                         if (allocated_audio_buf_size < frame_bytes)
1496                             exit_program(1);
1497                         generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1498                     }
1499
1500                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1501                     pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1502                                               ost->st->time_base.num, enc->sample_rate);
1503                     enc->frame_size = fs_tmp;
1504                 }
1505                 if (ret <= 0) {
1506                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1507                 }
1508                 if (ret < 0) {
1509                     fprintf(stderr, "Audio encoding failed\n");
1510                     exit_program(1);
1511                 }
1512                 audio_size += ret;
1513                 pkt.flags |= AV_PKT_FLAG_KEY;
1514                 break;
1515             case AVMEDIA_TYPE_VIDEO:
1516                 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1517                 if (ret < 0) {
1518                     fprintf(stderr, "Video encoding failed\n");
1519                     exit_program(1);
1520                 }
1521                 video_size += ret;
1522                 if(enc->coded_frame && enc->coded_frame->key_frame)
1523                     pkt.flags |= AV_PKT_FLAG_KEY;
1524                 if (ost->logfile && enc->stats_out) {
1525                     fprintf(ost->logfile, "%s", enc->stats_out);
1526                 }
1527                 break;
1528             default:
1529                 ret=-1;
1530             }
1531
1532             if (ret <= 0)
1533                 break;
1534             pkt.data = bit_buffer;
1535             pkt.size = ret;
1536             if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1537                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1538             write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1539         }
1540     }
1541 }
1542
1543 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1544 static int output_packet(InputStream *ist, int ist_index,
1545                          OutputStream *ost_table, int nb_ostreams,
1546                          const AVPacket *pkt)
1547 {
1548     AVFormatContext *os;
1549     OutputStream *ost;
1550     int ret, i;
1551     int got_output;
1552     AVFrame picture;
1553     void *buffer_to_free = NULL;
1554     static unsigned int samples_size= 0;
1555     AVSubtitle subtitle, *subtitle_to_free;
1556     int64_t pkt_pts = AV_NOPTS_VALUE;
1557 #if CONFIG_AVFILTER
1558     int frame_available;
1559 #endif
1560     float quality;
1561
1562     AVPacket avpkt;
1563     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1564
1565     if(ist->next_pts == AV_NOPTS_VALUE)
1566         ist->next_pts= ist->pts;
1567
1568     if (pkt == NULL) {
1569         /* EOF handling */
1570         av_init_packet(&avpkt);
1571         avpkt.data = NULL;
1572         avpkt.size = 0;
1573         goto handle_eof;
1574     } else {
1575         avpkt = *pkt;
1576     }
1577
1578     if(pkt->dts != AV_NOPTS_VALUE)
1579         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1580     if(pkt->pts != AV_NOPTS_VALUE)
1581         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1582
1583     //while we have more to decode or while the decoder did output something on EOF
1584     while (avpkt.size > 0 || (!pkt && got_output)) {
1585         uint8_t *data_buf, *decoded_data_buf;
1586         int data_size, decoded_data_size;
1587     handle_eof:
1588         ist->pts= ist->next_pts;
1589
1590         if(avpkt.size && avpkt.size != pkt->size &&
1591            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1592             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1593             ist->showed_multi_packet_warning=1;
1594         }
1595
1596         /* decode the packet if needed */
1597         decoded_data_buf = NULL; /* fail safe */
1598         decoded_data_size= 0;
1599         data_buf  = avpkt.data;
1600         data_size = avpkt.size;
1601         subtitle_to_free = NULL;
1602         if (ist->decoding_needed) {
1603             switch(ist->st->codec->codec_type) {
1604             case AVMEDIA_TYPE_AUDIO:{
1605                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1606                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1607                     av_free(samples);
1608                     samples= av_malloc(samples_size);
1609                 }
1610                 decoded_data_size= samples_size;
1611                     /* XXX: could avoid copy if PCM 16 bits with same
1612                        endianness as CPU */
1613                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1614                                             &avpkt);
1615                 if (ret < 0)
1616                     return ret;
1617                 avpkt.data += ret;
1618                 avpkt.size -= ret;
1619                 data_size   = ret;
1620                 got_output  = decoded_data_size > 0;
1621                 /* Some bug in mpeg audio decoder gives */
1622                 /* decoded_data_size < 0, it seems they are overflows */
1623                 if (!got_output) {
1624                     /* no audio frame */
1625                     continue;
1626                 }
1627                 decoded_data_buf = (uint8_t *)samples;
1628                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1629                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1630                 break;}
1631             case AVMEDIA_TYPE_VIDEO:
1632                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1633                     /* XXX: allocate picture correctly */
1634                     avcodec_get_frame_defaults(&picture);
1635                     avpkt.pts = pkt_pts;
1636                     avpkt.dts = ist->pts;
1637                     pkt_pts = AV_NOPTS_VALUE;
1638
1639                     ret = avcodec_decode_video2(ist->st->codec,
1640                                                 &picture, &got_output, &avpkt);
1641                     quality = same_quant ? picture.quality : 0;
1642                     if (ret < 0)
1643                         return ret;
1644                     if (!got_output) {
1645                         /* no picture yet */
1646                         goto discard_packet;
1647                     }
1648                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
1649                     if (ist->st->codec->time_base.num != 0) {
1650                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1651                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1652                                           ist->st->codec->time_base.num * ticks) /
1653                             ist->st->codec->time_base.den;
1654                     }
1655                     avpkt.size = 0;
1656                     buffer_to_free = NULL;
1657                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1658                     break;
1659             case AVMEDIA_TYPE_SUBTITLE:
1660                 ret = avcodec_decode_subtitle2(ist->st->codec,
1661                                                &subtitle, &got_output, &avpkt);
1662                 if (ret < 0)
1663                     return ret;
1664                 if (!got_output) {
1665                     goto discard_packet;
1666                 }
1667                 subtitle_to_free = &subtitle;
1668                 avpkt.size = 0;
1669                 break;
1670             default:
1671                 return -1;
1672             }
1673         } else {
1674             switch(ist->st->codec->codec_type) {
1675             case AVMEDIA_TYPE_AUDIO:
1676                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1677                     ist->st->codec->sample_rate;
1678                 break;
1679             case AVMEDIA_TYPE_VIDEO:
1680                 if (ist->st->codec->time_base.num != 0) {
1681                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1682                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1683                                       ist->st->codec->time_base.num * ticks) /
1684                         ist->st->codec->time_base.den;
1685                 }
1686                 break;
1687             }
1688             ret = avpkt.size;
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                     if (v < -32768) v = -32768;
1700                     if (v >  32767) v = 32767;
1701                     *volp++ = v;
1702                 }
1703             }
1704         }
1705
1706         /* frame rate emulation */
1707         if (rate_emu) {
1708             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1709             int64_t now = av_gettime() - ist->start;
1710             if (pts > now)
1711                 usleep(pts - now);
1712         }
1713         /* if output time reached then transcode raw format,
1714            encode packets and output them */
1715         for (i = 0; i < nb_ostreams; i++) {
1716             OutputFile *of = &output_files[ost_table[i].file_index];
1717             int frame_size;
1718
1719             ost = &ost_table[i];
1720             if (ost->source_index != ist_index)
1721                 continue;
1722
1723             if (of->start_time && ist->pts < of->start_time)
1724                 continue;
1725
1726             if (of->recording_time != INT64_MAX &&
1727                 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1728                               (AVRational){1, 1000000}) >= 0) {
1729                 ost->is_past_recording_time = 1;
1730                 continue;
1731             }
1732
1733 #if CONFIG_AVFILTER
1734             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1735                 ost->input_video_filter) {
1736                 if (!picture.sample_aspect_ratio.num)
1737                     picture.sample_aspect_ratio = ist->st->sample_aspect_ratio;
1738                 picture.pts = ist->pts;
1739
1740                 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, AV_VSRC_BUF_FLAG_OVERWRITE);
1741             }
1742             frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1743                 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1744             while (frame_available) {
1745                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter) {
1746                     AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
1747                     if (av_vsink_buffer_get_video_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
1748                         goto cont;
1749                     if (ost->picref) {
1750                         avfilter_fill_frame_from_video_buffer_ref(&picture, ost->picref);
1751                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1752                     }
1753                 }
1754 #endif
1755                 os = output_files[ost->file_index].ctx;
1756
1757                 /* set the input output pts pairs */
1758                 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1759
1760                 if (ost->encoding_needed) {
1761                     av_assert0(ist->decoding_needed);
1762                     switch(ost->st->codec->codec_type) {
1763                     case AVMEDIA_TYPE_AUDIO:
1764                         do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1765                         break;
1766                     case AVMEDIA_TYPE_VIDEO:
1767 #if CONFIG_AVFILTER
1768                         if (ost->picref->video && !ost->frame_aspect_ratio)
1769                             ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
1770 #endif
1771                         do_video_out(os, ost, ist, &picture, &frame_size,
1772                                         same_quant ? quality : ost->st->codec->global_quality);
1773                         if (vstats_filename && frame_size)
1774                             do_video_stats(os, ost, frame_size);
1775                         break;
1776                     case AVMEDIA_TYPE_SUBTITLE:
1777                         do_subtitle_out(os, ost, ist, &subtitle,
1778                                         pkt->pts);
1779                         break;
1780                     default:
1781                         abort();
1782                     }
1783                 } else {
1784                     AVFrame avframe; //FIXME/XXX remove this
1785                     AVPicture pict;
1786                     AVPacket opkt;
1787                     int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1788                     av_init_packet(&opkt);
1789
1790                     if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1791 #if !CONFIG_AVFILTER
1792                         continue;
1793 #else
1794                         goto cont;
1795 #endif
1796
1797                     /* no reencoding needed : output the packet directly */
1798                     /* force the input stream PTS */
1799
1800                     avcodec_get_frame_defaults(&avframe);
1801                     ost->st->codec->coded_frame= &avframe;
1802                     avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1803
1804                     if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1805                         audio_size += data_size;
1806                     else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1807                         video_size += data_size;
1808                         ost->sync_opts++;
1809                     }
1810
1811                     opkt.stream_index= ost->index;
1812                     if(pkt->pts != AV_NOPTS_VALUE)
1813                         opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1814                     else
1815                         opkt.pts= AV_NOPTS_VALUE;
1816
1817                     if (pkt->dts == AV_NOPTS_VALUE)
1818                         opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1819                     else
1820                         opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1821                     opkt.dts -= ost_tb_start_time;
1822
1823                     opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1824                     opkt.flags= pkt->flags;
1825
1826                     //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1827                     if(   ost->st->codec->codec_id != CODEC_ID_H264
1828                        && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1829                        && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1830                        ) {
1831                         if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1832                             opkt.destruct= av_destruct_packet;
1833                     } else {
1834                         opkt.data = data_buf;
1835                         opkt.size = data_size;
1836                     }
1837
1838                     if (os->oformat->flags & AVFMT_RAWPICTURE) {
1839                         /* store AVPicture in AVPacket, as expected by the output format */
1840                         avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1841                         opkt.data = (uint8_t *)&pict;
1842                         opkt.size = sizeof(AVPicture);
1843                         opkt.flags |= AV_PKT_FLAG_KEY;
1844                     }
1845                     write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1846                     ost->st->codec->frame_number++;
1847                     ost->frame_number++;
1848                     av_free_packet(&opkt);
1849                 }
1850 #if CONFIG_AVFILTER
1851                 cont:
1852                 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1853                                    ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1854                 if (ost->picref)
1855                     avfilter_unref_buffer(ost->picref);
1856             }
1857 #endif
1858             }
1859
1860         av_free(buffer_to_free);
1861         /* XXX: allocate the subtitles in the codec ? */
1862         if (subtitle_to_free) {
1863             avsubtitle_free(subtitle_to_free);
1864             subtitle_to_free = NULL;
1865         }
1866     }
1867  discard_packet:
1868     if (pkt == NULL) {
1869         /* EOF handling */
1870         flush_encoders(ist_index, ost_table, nb_ostreams);
1871     }
1872
1873     return 0;
1874 }
1875
1876 static void print_sdp(OutputFile *output_files, int n)
1877 {
1878     char sdp[2048];
1879     int i;
1880     AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1881
1882     if (!avc)
1883         exit_program(1);
1884     for (i = 0; i < n; i++)
1885         avc[i] = output_files[i].ctx;
1886
1887     av_sdp_create(avc, n, sdp, sizeof(sdp));
1888     printf("SDP:\n%s\n", sdp);
1889     fflush(stdout);
1890     av_freep(&avc);
1891 }
1892
1893 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1894                              char *error, int error_len)
1895 {
1896     int i;
1897     InputStream *ist = &input_streams[ist_index];
1898     if (ist->decoding_needed) {
1899         AVCodec *codec = ist->dec;
1900         if (!codec)
1901             codec = avcodec_find_decoder(ist->st->codec->codec_id);
1902         if (!codec) {
1903             snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
1904                     ist->st->codec->codec_id, ist->file_index, ist->st->index);
1905             return AVERROR(EINVAL);
1906         }
1907
1908         if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1909             snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
1910                     ist->file_index, ist->st->index);
1911             return AVERROR(EINVAL);
1912         }
1913         assert_codec_experimental(ist->st->codec, 0);
1914         assert_avoptions(ist->opts);
1915     }
1916
1917     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;
1918     ist->next_pts = AV_NOPTS_VALUE;
1919     ist->is_start = 1;
1920
1921     return 0;
1922 }
1923
1924 /*
1925  * The following code is the main loop of the file converter
1926  */
1927 static int transcode(OutputFile *output_files,
1928                      int nb_output_files,
1929                      InputFile *input_files,
1930                      int nb_input_files)
1931 {
1932     int ret = 0, i, step;
1933     AVFormatContext *is, *os;
1934     AVCodecContext *codec, *icodec;
1935     OutputStream *ost;
1936     InputStream *ist;
1937     char error[1024];
1938     int key;
1939     int want_sdp = 1;
1940     uint8_t *no_packet;
1941     int no_packet_count=0;
1942     int64_t timer_start;
1943
1944     if (!(no_packet = av_mallocz(nb_input_files)))
1945         exit_program(1);
1946
1947     if (rate_emu)
1948         for (i = 0; i < nb_input_streams; i++)
1949             input_streams[i].start = av_gettime();
1950
1951     /* output stream init */
1952     for(i=0;i<nb_output_files;i++) {
1953         os = output_files[i].ctx;
1954         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1955             av_dump_format(os, i, os->filename, 1);
1956             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1957             ret = AVERROR(EINVAL);
1958             goto fail;
1959         }
1960     }
1961
1962     /* for each output stream, we compute the right encoding parameters */
1963     for (i = 0; i < nb_output_streams; i++) {
1964         ost = &output_streams[i];
1965         os = output_files[ost->file_index].ctx;
1966         ist = &input_streams[ost->source_index];
1967
1968         codec = ost->st->codec;
1969         icodec = ist->st->codec;
1970
1971         ost->st->disposition = ist->st->disposition;
1972         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1973         codec->chroma_sample_location = icodec->chroma_sample_location;
1974
1975         if (ost->st->stream_copy) {
1976             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1977
1978             if (extra_size > INT_MAX) {
1979                 ret = AVERROR(EINVAL);
1980                 goto fail;
1981             }
1982
1983             /* if stream_copy is selected, no need to decode or encode */
1984             codec->codec_id = icodec->codec_id;
1985             codec->codec_type = icodec->codec_type;
1986
1987             if(!codec->codec_tag){
1988                 if(   !os->oformat->codec_tag
1989                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1990                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1991                     codec->codec_tag = icodec->codec_tag;
1992             }
1993
1994             codec->bit_rate = icodec->bit_rate;
1995             codec->rc_max_rate    = icodec->rc_max_rate;
1996             codec->rc_buffer_size = icodec->rc_buffer_size;
1997             codec->extradata= av_mallocz(extra_size);
1998             if (!codec->extradata) {
1999                 ret = AVERROR(ENOMEM);
2000                 goto fail;
2001             }
2002             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2003             codec->extradata_size= icodec->extradata_size;
2004
2005             codec->time_base = ist->st->time_base;
2006             if(!strcmp(os->oformat->name, "avi")) {
2007                 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){
2008                     codec->time_base = icodec->time_base;
2009                     codec->time_base.num *= icodec->ticks_per_frame;
2010                     codec->time_base.den *= 2;
2011                 }
2012             } else if(!(os->oformat->flags & AVFMT_VARIABLE_FPS)) {
2013                 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){
2014                     codec->time_base = icodec->time_base;
2015                     codec->time_base.num *= icodec->ticks_per_frame;
2016                 }
2017             }
2018             av_reduce(&codec->time_base.num, &codec->time_base.den,
2019                         codec->time_base.num, codec->time_base.den, INT_MAX);
2020
2021             switch(codec->codec_type) {
2022             case AVMEDIA_TYPE_AUDIO:
2023                 if(audio_volume != 256) {
2024                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2025                     exit_program(1);
2026                 }
2027                 codec->channel_layout = icodec->channel_layout;
2028                 codec->sample_rate = icodec->sample_rate;
2029                 codec->channels = icodec->channels;
2030                 codec->frame_size = icodec->frame_size;
2031                 codec->audio_service_type = icodec->audio_service_type;
2032                 codec->block_align= icodec->block_align;
2033                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2034                     codec->block_align= 0;
2035                 if(codec->codec_id == CODEC_ID_AC3)
2036                     codec->block_align= 0;
2037                 break;
2038             case AVMEDIA_TYPE_VIDEO:
2039                 codec->pix_fmt = icodec->pix_fmt;
2040                 codec->width = icodec->width;
2041                 codec->height = icodec->height;
2042                 codec->has_b_frames = icodec->has_b_frames;
2043                 if (!codec->sample_aspect_ratio.num) {
2044                     codec->sample_aspect_ratio =
2045                     ost->st->sample_aspect_ratio =
2046                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2047                         ist->st->codec->sample_aspect_ratio.num ?
2048                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2049                 }
2050                 break;
2051             case AVMEDIA_TYPE_SUBTITLE:
2052                 codec->width = icodec->width;
2053                 codec->height = icodec->height;
2054                 break;
2055             case AVMEDIA_TYPE_DATA:
2056                 break;
2057             default:
2058                 abort();
2059             }
2060         } else {
2061             if (!ost->enc)
2062                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2063             switch(codec->codec_type) {
2064             case AVMEDIA_TYPE_AUDIO:
2065                 ost->fifo= av_fifo_alloc(1024);
2066                 if (!ost->fifo) {
2067                     ret = AVERROR(ENOMEM);
2068                     goto fail;
2069                 }
2070                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2071                 if (!codec->sample_rate) {
2072                     codec->sample_rate = icodec->sample_rate;
2073                 }
2074                 choose_sample_rate(ost->st, ost->enc);
2075                 codec->time_base = (AVRational){1, codec->sample_rate};
2076                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2077                     codec->sample_fmt = icodec->sample_fmt;
2078                 choose_sample_fmt(ost->st, ost->enc);
2079                 if (!codec->channels) {
2080                     codec->channels = icodec->channels;
2081                     codec->channel_layout = icodec->channel_layout;
2082                 }
2083                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2084                     codec->channel_layout = 0;
2085                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2086                 icodec->request_channels = codec->channels;
2087                 ist->decoding_needed = 1;
2088                 ost->encoding_needed = 1;
2089                 ost->resample_sample_fmt  = icodec->sample_fmt;
2090                 ost->resample_sample_rate = icodec->sample_rate;
2091                 ost->resample_channels    = icodec->channels;
2092                 break;
2093             case AVMEDIA_TYPE_VIDEO:
2094                 if (codec->pix_fmt == PIX_FMT_NONE)
2095                     codec->pix_fmt = icodec->pix_fmt;
2096                 choose_pixel_fmt(ost->st, ost->enc);
2097
2098                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2099                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2100                     exit_program(1);
2101                 }
2102
2103                 if (!codec->width || !codec->height) {
2104                     codec->width  = icodec->width;
2105                     codec->height = icodec->height;
2106                 }
2107
2108                 ost->video_resample = codec->width   != icodec->width  ||
2109                                       codec->height  != icodec->height ||
2110                                       codec->pix_fmt != icodec->pix_fmt;
2111                 if (ost->video_resample) {
2112                     codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2113                 }
2114
2115                 ost->resample_height = icodec->height;
2116                 ost->resample_width  = icodec->width;
2117                 ost->resample_pix_fmt= icodec->pix_fmt;
2118                 ost->encoding_needed = 1;
2119                 ist->decoding_needed = 1;
2120
2121                 if (!ost->frame_rate.num)
2122                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2123                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2124                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2125                     ost->frame_rate = ost->enc->supported_framerates[idx];
2126                 }
2127                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2128                 if(   av_q2d(codec->time_base) < 0.001 && video_sync_method
2129                    && (video_sync_method==1 || (video_sync_method<0 && !(os->oformat->flags & AVFMT_VARIABLE_FPS)))){
2130                     av_log(os, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
2131                                                "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
2132                 }
2133
2134 #if CONFIG_AVFILTER
2135                 if (configure_video_filters(ist, ost)) {
2136                     fprintf(stderr, "Error opening filters!\n");
2137                     exit(1);
2138                 }
2139 #endif
2140                 break;
2141             case AVMEDIA_TYPE_SUBTITLE:
2142                 ost->encoding_needed = 1;
2143                 ist->decoding_needed = 1;
2144                 break;
2145             default:
2146                 abort();
2147                 break;
2148             }
2149             /* two pass mode */
2150             if (ost->encoding_needed && codec->codec_id != CODEC_ID_H264 &&
2151                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2152                 char logfilename[1024];
2153                 FILE *f;
2154
2155                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2156                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2157                          i);
2158                 if (codec->flags & CODEC_FLAG_PASS1) {
2159                     f = fopen(logfilename, "wb");
2160                     if (!f) {
2161                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2162                         exit_program(1);
2163                     }
2164                     ost->logfile = f;
2165                 } else {
2166                     char  *logbuffer;
2167                     size_t logbuffer_size;
2168                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2169                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2170                         exit_program(1);
2171                     }
2172                     codec->stats_in = logbuffer;
2173                 }
2174             }
2175         }
2176         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2177             /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
2178             int size= codec->width * codec->height;
2179             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);
2180         }
2181     }
2182
2183     if (!bit_buffer)
2184         bit_buffer = av_malloc(bit_buffer_size);
2185     if (!bit_buffer) {
2186         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2187                 bit_buffer_size);
2188         ret = AVERROR(ENOMEM);
2189         goto fail;
2190     }
2191
2192     /* open each encoder */
2193     for (i = 0; i < nb_output_streams; i++) {
2194         ost = &output_streams[i];
2195         if (ost->encoding_needed) {
2196             AVCodec *codec = ost->enc;
2197             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2198             if (!codec) {
2199                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2200                          ost->st->codec->codec_id, ost->file_index, ost->index);
2201                 ret = AVERROR(EINVAL);
2202                 goto dump_format;
2203             }
2204             if (dec->subtitle_header) {
2205                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2206                 if (!ost->st->codec->subtitle_header) {
2207                     ret = AVERROR(ENOMEM);
2208                     goto dump_format;
2209                 }
2210                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2211                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2212             }
2213             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2214                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2215                         ost->file_index, ost->index);
2216                 ret = AVERROR(EINVAL);
2217                 goto dump_format;
2218             }
2219             assert_codec_experimental(ost->st->codec, 1);
2220             assert_avoptions(ost->opts);
2221             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2222                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2223                                              "It takes bits/s as argument, not kbits/s\n");
2224             extra_size += ost->st->codec->extradata_size;
2225         }
2226     }
2227
2228     /* init input streams */
2229     for (i = 0; i < nb_input_streams; i++)
2230         if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error)) < 0))
2231             goto dump_format;
2232
2233     /* open files and write file headers */
2234     for (i = 0; i < nb_output_files; i++) {
2235         os = output_files[i].ctx;
2236         if (avformat_write_header(os, &output_files[i].opts) < 0) {
2237             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2238             ret = AVERROR(EINVAL);
2239             goto dump_format;
2240         }
2241 //        assert_avoptions(output_files[i].opts);
2242         if (strcmp(os->oformat->name, "rtp")) {
2243             want_sdp = 0;
2244         }
2245     }
2246
2247  dump_format:
2248     /* dump the file output parameters - cannot be done before in case
2249        of stream copy */
2250     for(i=0;i<nb_output_files;i++) {
2251         av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2252     }
2253
2254     /* dump the stream mapping */
2255     if (verbose >= 0) {
2256         fprintf(stderr, "Stream mapping:\n");
2257         for (i = 0; i < nb_output_streams;i ++) {
2258             ost = &output_streams[i];
2259             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2260                     input_streams[ost->source_index].file_index,
2261                     input_streams[ost->source_index].st->index,
2262                     ost->file_index,
2263                     ost->index);
2264             if (ost->sync_ist != &input_streams[ost->source_index])
2265                 fprintf(stderr, " [sync #%d.%d]",
2266                         ost->sync_ist->file_index,
2267                         ost->sync_ist->st->index);
2268             if (ost->st->stream_copy)
2269                 fprintf(stderr, " (copy)");
2270             fprintf(stderr, "\n");
2271         }
2272     }
2273
2274     if (ret) {
2275         fprintf(stderr, "%s\n", error);
2276         goto fail;
2277     }
2278
2279     if (want_sdp) {
2280         print_sdp(output_files, nb_output_files);
2281     }
2282
2283     if (!using_stdin) {
2284         if(verbose >= 0)
2285             fprintf(stderr, "Press [q] to stop, [?] for help\n");
2286         avio_set_interrupt_cb(decode_interrupt_cb);
2287     }
2288     term_init();
2289
2290     timer_start = av_gettime();
2291
2292     for(; received_sigterm == 0;) {
2293         int file_index, ist_index;
2294         AVPacket pkt;
2295         int64_t ipts_min;
2296         double opts_min;
2297
2298     redo:
2299         ipts_min = INT64_MAX;
2300         opts_min= 1e100;
2301         /* if 'q' pressed, exits */
2302         if (!using_stdin) {
2303             if (q_pressed)
2304                 break;
2305             /* read_key() returns 0 on EOF */
2306             key = read_key();
2307             if (key == 'q')
2308                 break;
2309             if (key == '+') verbose++;
2310             if (key == '-') verbose--;
2311             if (key == 's') qp_hist     ^= 1;
2312             if (key == 'h'){
2313                 if (do_hex_dump){
2314                     do_hex_dump = do_pkt_dump = 0;
2315                 } else if(do_pkt_dump){
2316                     do_hex_dump = 1;
2317                 } else
2318                     do_pkt_dump = 1;
2319                 av_log_set_level(AV_LOG_DEBUG);
2320             }
2321             if (key == 'd' || key == 'D'){
2322                 int debug=0;
2323                 if(key == 'D') {
2324                     debug = input_streams[0].st->codec->debug<<1;
2325                     if(!debug) debug = 1;
2326                     while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2327                         debug += debug;
2328                 }else
2329                     scanf("%d", &debug);
2330                 for(i=0;i<nb_input_streams;i++) {
2331                     input_streams[i].st->codec->debug = debug;
2332                 }
2333                 for(i=0;i<nb_output_streams;i++) {
2334                     ost = &output_streams[i];
2335                     ost->st->codec->debug = debug;
2336                 }
2337                 if(debug) av_log_set_level(AV_LOG_DEBUG);
2338                 fprintf(stderr,"debug=%d\n", debug);
2339             }
2340             if (key == '?'){
2341                 fprintf(stderr, "key    function\n"
2342                                 "?      show this help\n"
2343                                 "+      increase verbosity\n"
2344                                 "-      decrease verbosity\n"
2345                                 "D      cycle through available debug modes\n"
2346                                 "h      dump packets/hex press to cycle through the 3 states\n"
2347                                 "q      quit\n"
2348                                 "s      Show QP histogram\n"
2349                 );
2350             }
2351         }
2352
2353         /* select the stream that we must read now by looking at the
2354            smallest output pts */
2355         file_index = -1;
2356         for (i = 0; i < nb_output_streams; i++) {
2357             int64_t ipts;
2358             double  opts;
2359             ost = &output_streams[i];
2360             os = output_files[ost->file_index].ctx;
2361             ist = &input_streams[ost->source_index];
2362             if(ost->is_past_recording_time || no_packet[ist->file_index])
2363                 continue;
2364                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2365             ipts = ist->pts;
2366             if (!input_files[ist->file_index].eof_reached){
2367                 if(ipts < ipts_min) {
2368                     ipts_min = ipts;
2369                     if(input_sync ) file_index = ist->file_index;
2370                 }
2371                 if(opts < opts_min) {
2372                     opts_min = opts;
2373                     if(!input_sync) file_index = ist->file_index;
2374                 }
2375             }
2376             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2377                 file_index= -1;
2378                 break;
2379             }
2380         }
2381         /* if none, if is finished */
2382         if (file_index < 0) {
2383             if(no_packet_count){
2384                 no_packet_count=0;
2385                 memset(no_packet, 0, nb_input_files);
2386                 usleep(10000);
2387                 continue;
2388             }
2389             break;
2390         }
2391
2392         /* finish if limit size exhausted */
2393         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0].ctx->pb))
2394             break;
2395
2396         /* read a frame from it and output it in the fifo */
2397         is = input_files[file_index].ctx;
2398         ret= av_read_frame(is, &pkt);
2399         if(ret == AVERROR(EAGAIN)){
2400             no_packet[file_index]=1;
2401             no_packet_count++;
2402             continue;
2403         }
2404         if (ret < 0) {
2405             input_files[file_index].eof_reached = 1;
2406             if (opt_shortest)
2407                 break;
2408             else
2409                 continue;
2410         }
2411
2412         no_packet_count=0;
2413         memset(no_packet, 0, nb_input_files);
2414
2415         if (do_pkt_dump) {
2416             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2417                              is->streams[pkt.stream_index]);
2418         }
2419         /* the following test is needed in case new streams appear
2420            dynamically in stream : we ignore them */
2421         if (pkt.stream_index >= input_files[file_index].nb_streams)
2422             goto discard_packet;
2423         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2424         ist = &input_streams[ist_index];
2425         if (ist->discard)
2426             goto discard_packet;
2427
2428         if (pkt.dts != AV_NOPTS_VALUE)
2429             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2430         if (pkt.pts != AV_NOPTS_VALUE)
2431             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2432
2433         if (ist->ts_scale) {
2434             if(pkt.pts != AV_NOPTS_VALUE)
2435                 pkt.pts *= ist->ts_scale;
2436             if(pkt.dts != AV_NOPTS_VALUE)
2437                 pkt.dts *= ist->ts_scale;
2438         }
2439
2440 //        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);
2441         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2442             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2443             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2444             int64_t delta= pkt_dts - ist->next_pts;
2445             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2446                 input_files[ist->file_index].ts_offset -= delta;
2447                 if (verbose > 2)
2448                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2449                             delta, input_files[ist->file_index].ts_offset);
2450                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2451                 if(pkt.pts != AV_NOPTS_VALUE)
2452                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2453             }
2454         }
2455
2456         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2457         if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2458
2459             if (verbose >= 0)
2460                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2461                         ist->file_index, ist->st->index);
2462             if (exit_on_error)
2463                 exit_program(1);
2464             av_free_packet(&pkt);
2465             goto redo;
2466         }
2467
2468     discard_packet:
2469         av_free_packet(&pkt);
2470
2471         /* dump report by using the output first video and audio streams */
2472         print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2473     }
2474
2475     /* at the end of stream, we must flush the decoder buffers */
2476     for (i = 0; i < nb_input_streams; i++) {
2477         ist = &input_streams[i];
2478         if (ist->decoding_needed) {
2479             output_packet(ist, i, output_streams, nb_output_streams, NULL);
2480         }
2481     }
2482
2483     term_exit();
2484
2485     /* write the trailer if needed and close file */
2486     for(i=0;i<nb_output_files;i++) {
2487         os = output_files[i].ctx;
2488         av_write_trailer(os);
2489     }
2490
2491     /* dump report by using the first video and audio streams */
2492     print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2493
2494     /* close each encoder */
2495     for (i = 0; i < nb_output_streams; i++) {
2496         ost = &output_streams[i];
2497         if (ost->encoding_needed) {
2498             av_freep(&ost->st->codec->stats_in);
2499             avcodec_close(ost->st->codec);
2500         }
2501 #if CONFIG_AVFILTER
2502         avfilter_graph_free(&ost->graph);
2503 #endif
2504     }
2505
2506     /* close each decoder */
2507     for (i = 0; i < nb_input_streams; i++) {
2508         ist = &input_streams[i];
2509         if (ist->decoding_needed) {
2510             avcodec_close(ist->st->codec);
2511         }
2512     }
2513
2514     /* finished ! */
2515     ret = 0;
2516
2517  fail:
2518     av_freep(&bit_buffer);
2519     av_freep(&no_packet);
2520
2521     if (output_streams) {
2522         for (i = 0; i < nb_output_streams; i++) {
2523             ost = &output_streams[i];
2524             if (ost) {
2525                 if (ost->st->stream_copy)
2526                     av_freep(&ost->st->codec->extradata);
2527                 if (ost->logfile) {
2528                     fclose(ost->logfile);
2529                     ost->logfile = NULL;
2530                 }
2531                 av_fifo_free(ost->fifo); /* works even if fifo is not
2532                                              initialized but set to zero */
2533                 av_freep(&ost->st->codec->subtitle_header);
2534                 av_free(ost->resample_frame.data[0]);
2535                 av_free(ost->forced_kf_pts);
2536                 if (ost->video_resample)
2537                     sws_freeContext(ost->img_resample_ctx);
2538                 if (ost->resample)
2539                     audio_resample_close(ost->resample);
2540                 if (ost->reformat_ctx)
2541                     av_audio_convert_free(ost->reformat_ctx);
2542                 av_dict_free(&ost->opts);
2543             }
2544         }
2545     }
2546     return ret;
2547 }
2548
2549 static int opt_format(const char *opt, const char *arg)
2550 {
2551     last_asked_format = arg;
2552     return 0;
2553 }
2554
2555 static int opt_video_rc_override_string(const char *opt, const char *arg)
2556 {
2557     video_rc_override_string = arg;
2558     return 0;
2559 }
2560
2561 static int opt_me_threshold(const char *opt, const char *arg)
2562 {
2563     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2564     return 0;
2565 }
2566
2567 static int opt_verbose(const char *opt, const char *arg)
2568 {
2569     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2570     return 0;
2571 }
2572
2573 static int opt_frame_rate(const char *opt, const char *arg)
2574 {
2575     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2576         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2577         exit_program(1);
2578     }
2579     return 0;
2580 }
2581
2582 static int opt_frame_crop(const char *opt, const char *arg)
2583 {
2584     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2585     return AVERROR(EINVAL);
2586 }
2587
2588 static int opt_frame_size(const char *opt, const char *arg)
2589 {
2590     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2591         fprintf(stderr, "Incorrect frame size\n");
2592         return AVERROR(EINVAL);
2593     }
2594     return 0;
2595 }
2596
2597 static int opt_pad(const char *opt, const char *arg) {
2598     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2599     return -1;
2600 }
2601
2602 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2603 {
2604     if (strcmp(arg, "list")) {
2605         frame_pix_fmt = av_get_pix_fmt(arg);
2606         if (frame_pix_fmt == PIX_FMT_NONE) {
2607             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2608             return AVERROR(EINVAL);
2609         }
2610     } else {
2611         opt_pix_fmts(NULL, NULL);
2612         exit_program(0);
2613     }
2614     return 0;
2615 }
2616
2617 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2618 {
2619     int x = 0, y = 0;
2620     double ar = 0;
2621     const char *p;
2622     char *end;
2623
2624     p = strchr(arg, ':');
2625     if (p) {
2626         x = strtol(arg, &end, 10);
2627         if (end == p)
2628             y = strtol(end+1, &end, 10);
2629         if (x > 0 && y > 0)
2630             ar = (double)x / (double)y;
2631     } else
2632         ar = strtod(arg, NULL);
2633
2634     if (!ar) {
2635         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2636         return AVERROR(EINVAL);
2637     }
2638     frame_aspect_ratio = ar;
2639     return 0;
2640 }
2641
2642 static int opt_metadata(const char *opt, const char *arg)
2643 {
2644     char *mid= strchr(arg, '=');
2645
2646     if(!mid){
2647         fprintf(stderr, "Missing =\n");
2648         exit_program(1);
2649     }
2650     *mid++= 0;
2651
2652     av_dict_set(&metadata, arg, mid, 0);
2653
2654     return 0;
2655 }
2656
2657 static int opt_qscale(const char *opt, const char *arg)
2658 {
2659     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2660     if (video_qscale <= 0 || video_qscale > 255) {
2661         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2662         return AVERROR(EINVAL);
2663     }
2664     return 0;
2665 }
2666
2667 static int opt_top_field_first(const char *opt, const char *arg)
2668 {
2669     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2670     return opt_default(opt, arg);
2671 }
2672
2673 static int opt_thread_count(const char *opt, const char *arg)
2674 {
2675     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2676 #if !HAVE_THREADS
2677     if (verbose >= 0)
2678         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2679 #endif
2680     return 0;
2681 }
2682
2683 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2684 {
2685     if (strcmp(arg, "list")) {
2686         audio_sample_fmt = av_get_sample_fmt(arg);
2687         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2688             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2689             return AVERROR(EINVAL);
2690         }
2691     } else {
2692         int i;
2693         char fmt_str[128];
2694         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2695             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2696         exit_program(0);
2697     }
2698     return 0;
2699 }
2700
2701 static int opt_audio_rate(const char *opt, const char *arg)
2702 {
2703     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2704     return 0;
2705 }
2706
2707 static int opt_audio_channels(const char *opt, const char *arg)
2708 {
2709     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2710     return 0;
2711 }
2712
2713 static int opt_codec(const char *opt, const char *arg)
2714 {
2715     return av_dict_set(&codec_names, opt, arg, 0);
2716 }
2717
2718 static int opt_audio_codec(const char *opt, const char *arg)
2719 {
2720     return opt_codec("codec:a", arg);
2721 }
2722
2723 static int opt_video_codec(const char *opt, const char *arg)
2724 {
2725     return opt_codec("codec:v", arg);
2726 }
2727
2728 static int opt_subtitle_codec(const char *opt, const char *arg)
2729 {
2730     return opt_codec("codec:s", arg);
2731 }
2732
2733 static int opt_data_codec(const char *opt, const char *arg)
2734 {
2735     return opt_codec("codec:d", arg);
2736 }
2737
2738 static int opt_codec_tag(const char *opt, const char *arg)
2739 {
2740     char *tail;
2741     uint32_t *codec_tag;
2742
2743     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2744                 !strcmp(opt, "vtag") ? &video_codec_tag :
2745                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2746     if (!codec_tag)
2747         return -1;
2748
2749     *codec_tag = strtol(arg, &tail, 0);
2750     if (!tail || *tail)
2751         *codec_tag = AV_RL32(arg);
2752
2753     return 0;
2754 }
2755
2756 static int opt_map(const char *opt, const char *arg)
2757 {
2758     StreamMap *m = NULL;
2759     int i, negative = 0, file_idx;
2760     int sync_file_idx = -1, sync_stream_idx;
2761     char *p, *sync;
2762     char *map;
2763
2764     if (*arg == '-') {
2765         negative = 1;
2766         arg++;
2767     }
2768     map = av_strdup(arg);
2769
2770     /* parse sync stream first, just pick first matching stream */
2771     if (sync = strchr(map, ',')) {
2772         *sync = 0;
2773         sync_file_idx = strtol(sync + 1, &sync, 0);
2774         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2775             av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2776             exit_program(1);
2777         }
2778         if (*sync)
2779             sync++;
2780         for (i = 0; i < input_files[sync_file_idx].ctx->nb_streams; i++)
2781             if (check_stream_specifier(input_files[sync_file_idx].ctx,
2782                                        input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2783                 sync_stream_idx = i;
2784                 break;
2785             }
2786         if (i == input_files[sync_file_idx].ctx->nb_streams) {
2787             av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2788                                        "match any streams.\n", arg);
2789             exit_program(1);
2790         }
2791     }
2792
2793
2794     file_idx = strtol(map, &p, 0);
2795     if (file_idx >= nb_input_files || file_idx < 0) {
2796         av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2797         exit_program(1);
2798     }
2799     if (negative)
2800         /* disable some already defined maps */
2801         for (i = 0; i < nb_stream_maps; i++) {
2802             m = &stream_maps[i];
2803             if (check_stream_specifier(input_files[m->file_index].ctx,
2804                                        input_files[m->file_index].ctx->streams[m->stream_index],
2805                                        *p == ':' ? p + 1 : p) > 0)
2806                 m->disabled = 1;
2807         }
2808     else
2809         for (i = 0; i < input_files[file_idx].ctx->nb_streams; i++) {
2810             if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2811                         *p == ':' ? p + 1 : p) <= 0)
2812                 continue;
2813             stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2814             m = &stream_maps[nb_stream_maps - 1];
2815
2816             m->file_index   = file_idx;
2817             m->stream_index = i;
2818
2819             if (sync_file_idx >= 0) {
2820                 m->sync_file_index   = sync_file_idx;
2821                 m->sync_stream_index = sync_stream_idx;
2822             } else {
2823                 m->sync_file_index   = file_idx;
2824                 m->sync_stream_index = i;
2825             }
2826         }
2827
2828     if (!m) {
2829         av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2830         exit_program(1);
2831     }
2832
2833     av_freep(&map);
2834     return 0;
2835 }
2836
2837 static void parse_meta_type(char *arg, char *type, int *index)
2838 {
2839     if (*arg == ':') {
2840         *type = *(++arg);
2841         switch (*arg) {
2842         case 'g':
2843             break;
2844         case 's':
2845         case 'c':
2846         case 'p':
2847             if (*(++arg) == ':')
2848                 *index = strtol(++arg, NULL, 0);
2849             break;
2850         default:
2851             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2852             exit_program(1);
2853         }
2854     } else
2855         *type = 'g';
2856 }
2857
2858 static int opt_map_metadata(const char *opt, const char *arg)
2859 {
2860     MetadataMap *m, *m1;
2861     char *p;
2862
2863     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2864                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
2865
2866     m = &meta_data_maps[nb_meta_data_maps - 1][1];
2867     m->file = strtol(arg, &p, 0);
2868     parse_meta_type(p, &m->type, &m->index);
2869
2870     m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2871     if (p = strchr(opt, ':'))
2872         parse_meta_type(p, &m1->type, &m1->index);
2873     else
2874         m1->type = 'g';
2875
2876     if (m->type == 'g' || m1->type == 'g')
2877         metadata_global_autocopy = 0;
2878     if (m->type == 's' || m1->type == 's')
2879         metadata_streams_autocopy = 0;
2880     if (m->type == 'c' || m1->type == 'c')
2881         metadata_chapters_autocopy = 0;
2882
2883     return 0;
2884 }
2885
2886 static int opt_input_ts_scale(const char *opt, const char *arg)
2887 {
2888     return av_dict_set(&ts_scale, opt, arg, 0);
2889 }
2890
2891 static int opt_recording_time(const char *opt, const char *arg)
2892 {
2893     recording_time = parse_time_or_die(opt, arg, 1);
2894     return 0;
2895 }
2896
2897 static int opt_start_time(const char *opt, const char *arg)
2898 {
2899     start_time = parse_time_or_die(opt, arg, 1);
2900     return 0;
2901 }
2902
2903 static int opt_input_ts_offset(const char *opt, const char *arg)
2904 {
2905     input_ts_offset = parse_time_or_die(opt, arg, 1);
2906     return 0;
2907 }
2908
2909 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2910 {
2911     const char *codec_string = encoder ? "encoder" : "decoder";
2912     AVCodec *codec;
2913
2914     if(!name)
2915         return CODEC_ID_NONE;
2916     codec = encoder ?
2917         avcodec_find_encoder_by_name(name) :
2918         avcodec_find_decoder_by_name(name);
2919     if(!codec) {
2920         av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2921         exit_program(1);
2922     }
2923     if(codec->type != type) {
2924         av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2925         exit_program(1);
2926     }
2927     return codec->id;
2928 }
2929
2930 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2931 {
2932     AVDictionaryEntry *e = NULL;
2933     char *codec_name = NULL;
2934     int ret;
2935
2936     while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2937         char *p = strchr(e->key, ':');
2938
2939         if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2940             codec_name = e->value;
2941         else if (ret < 0)
2942             exit_program(1);
2943     }
2944
2945     if (!codec_name) {
2946         if (s->oformat) {
2947             st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2948             return avcodec_find_encoder(st->codec->codec_id);
2949         }
2950     } else if (!strcmp(codec_name, "copy"))
2951         st->stream_copy = 1;
2952     else {
2953         st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2954         return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2955                             avcodec_find_decoder_by_name(codec_name);
2956     }
2957
2958     return NULL;
2959 }
2960
2961 /**
2962  * Add all the streams from the given input file to the global
2963  * list of input streams.
2964  */
2965 static void add_input_streams(AVFormatContext *ic)
2966 {
2967     int i, rfps, rfps_base, ret;
2968
2969     for (i = 0; i < ic->nb_streams; i++) {
2970         AVStream *st = ic->streams[i];
2971         AVCodecContext *dec = st->codec;
2972         AVDictionaryEntry *e = NULL;
2973         InputStream *ist;
2974         char *scale = NULL;
2975
2976         dec->thread_count = thread_count;
2977
2978         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2979         ist = &input_streams[nb_input_streams - 1];
2980         ist->st = st;
2981         ist->file_index = nb_input_files;
2982         ist->discard = 1;
2983         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2984
2985         while (e = av_dict_get(ts_scale, "", e, AV_DICT_IGNORE_SUFFIX)) {
2986             char *p = strchr(e->key, ':');
2987
2988             if ((ret = check_stream_specifier(ic, st, p ? p + 1 : "")) > 0)
2989                 scale = e->value;
2990             else if (ret < 0)
2991                 exit_program(1);
2992         }
2993         if (scale)
2994             ist->ts_scale = strtod(scale, NULL);
2995
2996         ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2997
2998         switch (dec->codec_type) {
2999         case AVMEDIA_TYPE_AUDIO:
3000             if(!ist->dec)
3001                 ist->dec = avcodec_find_decoder(dec->codec_id);
3002             if(audio_disable)
3003                 st->discard= AVDISCARD_ALL;
3004             break;
3005         case AVMEDIA_TYPE_VIDEO:
3006             if(!ist->dec)
3007                 ist->dec = avcodec_find_decoder(dec->codec_id);
3008             rfps      = ic->streams[i]->r_frame_rate.num;
3009             rfps_base = ic->streams[i]->r_frame_rate.den;
3010             if (dec->lowres) {
3011                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3012             }
3013             if(me_threshold)
3014                 dec->debug |= FF_DEBUG_MV;
3015
3016             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3017
3018                 if (verbose >= 0)
3019                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3020                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3021
3022                     (float)rfps / rfps_base, rfps, rfps_base);
3023             }
3024
3025             if(video_disable)
3026                 st->discard= AVDISCARD_ALL;
3027             else if(video_discard)
3028                 st->discard= video_discard;
3029             break;
3030         case AVMEDIA_TYPE_DATA:
3031             break;
3032         case AVMEDIA_TYPE_SUBTITLE:
3033             if(!ist->dec)
3034                 ist->dec = avcodec_find_decoder(dec->codec_id);
3035             if(subtitle_disable)
3036                 st->discard = AVDISCARD_ALL;
3037             break;
3038         case AVMEDIA_TYPE_ATTACHMENT:
3039         case AVMEDIA_TYPE_UNKNOWN:
3040             break;
3041         default:
3042             abort();
3043         }
3044     }
3045 }
3046
3047 static int opt_input_file(const char *opt, const char *filename)
3048 {
3049     AVFormatContext *ic;
3050     AVInputFormat *file_iformat = NULL;
3051     int err, i, ret;
3052     int64_t timestamp;
3053     uint8_t buf[128];
3054     AVDictionary **opts;
3055     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
3056
3057     if (last_asked_format) {
3058         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3059             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3060             exit_program(1);
3061         }
3062         last_asked_format = NULL;
3063     }
3064
3065     if (!strcmp(filename, "-"))
3066         filename = "pipe:";
3067
3068     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3069                     !strcmp(filename, "/dev/stdin");
3070
3071     /* get default parameters from command line */
3072     ic = avformat_alloc_context();
3073     if (!ic) {
3074         print_error(filename, AVERROR(ENOMEM));
3075         exit_program(1);
3076     }
3077     if (audio_sample_rate) {
3078         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3079         av_dict_set(&format_opts, "sample_rate", buf, 0);
3080     }
3081     if (audio_channels) {
3082         snprintf(buf, sizeof(buf), "%d", audio_channels);
3083         av_dict_set(&format_opts, "channels", buf, 0);
3084     }
3085     if (frame_rate.num) {
3086         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3087         av_dict_set(&format_opts, "framerate", buf, 0);
3088     }
3089     if (frame_width && frame_height) {
3090         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3091         av_dict_set(&format_opts, "video_size", buf, 0);
3092     }
3093     if (frame_pix_fmt != PIX_FMT_NONE)
3094         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3095
3096     ic->flags |= AVFMT_FLAG_NONBLOCK;
3097
3098     /* open the input file with generic libav function */
3099     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3100     if (err < 0) {
3101         print_error(filename, err);
3102         exit_program(1);
3103     }
3104     assert_avoptions(format_opts);
3105
3106     if(opt_programid) {
3107         int i, j;
3108         int found=0;
3109         for(i=0; i<ic->nb_streams; i++){
3110             ic->streams[i]->discard= AVDISCARD_ALL;
3111         }
3112         for(i=0; i<ic->nb_programs; i++){
3113             AVProgram *p= ic->programs[i];
3114             if(p->id != opt_programid){
3115                 p->discard = AVDISCARD_ALL;
3116             }else{
3117                 found=1;
3118                 for(j=0; j<p->nb_stream_indexes; j++){
3119                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3120                 }
3121             }
3122         }
3123         if(!found){
3124             fprintf(stderr, "Specified program id not found\n");
3125             exit_program(1);
3126         }
3127         opt_programid=0;
3128     }
3129
3130     /* apply forced codec ids */
3131     for (i = 0; i < ic->nb_streams; i++)
3132         choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3133
3134     /* Set AVCodecContext options for avformat_find_stream_info */
3135     opts = setup_find_stream_info_opts(ic, codec_opts);
3136     orig_nb_streams = ic->nb_streams;
3137
3138     /* If not enough info to get the stream parameters, we decode the
3139        first frames to get it. (used in mpeg case for example) */
3140     ret = avformat_find_stream_info(ic, opts);
3141     if (ret < 0 && verbose >= 0) {
3142         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3143         av_close_input_file(ic);
3144         exit_program(1);
3145     }
3146
3147     timestamp = start_time;
3148     /* add the stream start time */
3149     if (ic->start_time != AV_NOPTS_VALUE)
3150         timestamp += ic->start_time;
3151
3152     /* if seeking requested, we execute it */
3153     if (start_time != 0) {
3154         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3155         if (ret < 0) {
3156             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3157                     filename, (double)timestamp / AV_TIME_BASE);
3158         }
3159         /* reset seek info */
3160         start_time = 0;
3161     }
3162
3163     /* update the current parameters so that they match the one of the input stream */
3164     add_input_streams(ic);
3165
3166     /* dump the file content */
3167     if (verbose >= 0)
3168         av_dump_format(ic, nb_input_files, filename, 0);
3169
3170     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3171     input_files[nb_input_files - 1].ctx        = ic;
3172     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3173     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3174     input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3175
3176     top_field_first = -1;
3177     frame_rate    = (AVRational){0, 0};
3178     frame_pix_fmt = PIX_FMT_NONE;
3179     frame_height = 0;
3180     frame_width  = 0;
3181     audio_sample_rate = 0;
3182     audio_channels    = 0;
3183     audio_sample_fmt  = AV_SAMPLE_FMT_NONE;
3184     av_dict_free(&ts_scale);
3185
3186     for (i = 0; i < orig_nb_streams; i++)
3187         av_dict_free(&opts[i]);
3188     av_freep(&opts);
3189     av_dict_free(&codec_names);
3190     uninit_opts();
3191     init_opts();
3192     return 0;
3193 }
3194
3195 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3196                                     AVCodecContext *avctx)
3197 {
3198     char *p;
3199     int n = 1, i;
3200     int64_t t;
3201
3202     for (p = kf; *p; p++)
3203         if (*p == ',')
3204             n++;
3205     ost->forced_kf_count = n;
3206     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3207     if (!ost->forced_kf_pts) {
3208         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3209         exit_program(1);
3210     }
3211     for (i = 0; i < n; i++) {
3212         p = i ? strchr(p, ',') + 1 : kf;
3213         t = parse_time_or_die("force_key_frames", p, 1);
3214         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3215     }
3216 }
3217
3218 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3219 {
3220     OutputStream *ost;
3221     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3222     int idx      = oc->nb_streams - 1;
3223
3224     if (!st) {
3225         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3226         exit_program(1);
3227     }
3228
3229     output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3230                                 nb_output_streams + 1);
3231     ost = &output_streams[nb_output_streams - 1];
3232     ost->file_index = nb_output_files;
3233     ost->index = idx;
3234     ost->st    = st;
3235     st->codec->codec_type = type;
3236     ost->enc = choose_codec(oc, st, type, codec_names);
3237     if (ost->enc) {
3238         ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3239     }
3240
3241     avcodec_get_context_defaults3(st->codec, ost->enc);
3242     st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3243
3244     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3245     return ost;
3246 }
3247
3248 static OutputStream *new_video_stream(AVFormatContext *oc)
3249 {
3250     AVStream *st;
3251     OutputStream *ost;
3252     AVCodecContext *video_enc;
3253
3254     ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3255     st  = ost->st;
3256     if (!st->stream_copy) {
3257         ost->frame_aspect_ratio = frame_aspect_ratio;
3258         frame_aspect_ratio = 0;
3259 #if CONFIG_AVFILTER
3260         ost->avfilter = vfilters;
3261         vfilters = NULL;
3262 #endif
3263     }
3264
3265     ost->bitstream_filters = video_bitstream_filters;
3266     video_bitstream_filters= NULL;
3267
3268     st->codec->thread_count= thread_count;
3269
3270     video_enc = st->codec;
3271
3272     if(video_codec_tag)
3273         video_enc->codec_tag= video_codec_tag;
3274
3275     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3276         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3277     }
3278
3279     if (st->stream_copy) {
3280         video_enc->sample_aspect_ratio =
3281         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3282     } else {
3283         const char *p;
3284         int i;
3285
3286         if (frame_rate.num)
3287             ost->frame_rate = frame_rate;
3288
3289         video_enc->width = frame_width;
3290         video_enc->height = frame_height;
3291         video_enc->pix_fmt = frame_pix_fmt;
3292         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3293         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3294
3295         if (video_qscale || same_quant) {
3296             video_enc->flags |= CODEC_FLAG_QSCALE;
3297             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3298         }
3299
3300         if(intra_matrix)
3301             video_enc->intra_matrix = intra_matrix;
3302         if(inter_matrix)
3303             video_enc->inter_matrix = inter_matrix;
3304
3305         p= video_rc_override_string;
3306         for(i=0; p; i++){
3307             int start, end, q;
3308             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3309             if(e!=3){
3310                 fprintf(stderr, "error parsing rc_override\n");
3311                 exit_program(1);
3312             }
3313             video_enc->rc_override=
3314                 av_realloc(video_enc->rc_override,
3315                            sizeof(RcOverride)*(i+1));
3316             video_enc->rc_override[i].start_frame= start;
3317             video_enc->rc_override[i].end_frame  = end;
3318             if(q>0){
3319                 video_enc->rc_override[i].qscale= q;
3320                 video_enc->rc_override[i].quality_factor= 1.0;
3321             }
3322             else{
3323                 video_enc->rc_override[i].qscale= 0;
3324                 video_enc->rc_override[i].quality_factor= -q/100.0;
3325             }
3326             p= strchr(p, '/');
3327             if(p) p++;
3328         }
3329         video_enc->rc_override_count=i;
3330         if (!video_enc->rc_initial_buffer_occupancy)
3331             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3332         video_enc->me_threshold= me_threshold;
3333         video_enc->intra_dc_precision= intra_dc_precision - 8;
3334
3335         if (do_psnr)
3336             video_enc->flags|= CODEC_FLAG_PSNR;
3337
3338         /* two pass mode */
3339         if (do_pass) {
3340             if (do_pass == 1) {
3341                 video_enc->flags |= CODEC_FLAG_PASS1;
3342             } else {
3343                 video_enc->flags |= CODEC_FLAG_PASS2;
3344             }
3345         }
3346
3347         if (forced_key_frames)
3348             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3349     }
3350     if (video_language) {
3351         av_dict_set(&st->metadata, "language", video_language, 0);
3352         av_freep(&video_language);
3353     }
3354
3355     /* reset some key parameters */
3356     video_disable = 0;
3357     av_freep(&forced_key_frames);
3358     frame_pix_fmt = PIX_FMT_NONE;
3359     return ost;
3360 }
3361
3362 static OutputStream *new_audio_stream(AVFormatContext *oc)
3363 {
3364     AVStream *st;
3365     OutputStream *ost;
3366     AVCodecContext *audio_enc;
3367
3368     ost = new_output_stream(oc, AVMEDIA_TYPE_AUDIO);
3369     st  = ost->st;
3370
3371     ost->bitstream_filters = audio_bitstream_filters;
3372     audio_bitstream_filters= NULL;
3373
3374     st->codec->thread_count= thread_count;
3375
3376     audio_enc = st->codec;
3377     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3378
3379     if(audio_codec_tag)
3380         audio_enc->codec_tag= audio_codec_tag;
3381
3382     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3383         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3384     }
3385     if (!st->stream_copy) {
3386         if (audio_qscale > QSCALE_NONE) {
3387             audio_enc->flags |= CODEC_FLAG_QSCALE;
3388             audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3389         }
3390         if (audio_channels)
3391             audio_enc->channels = audio_channels;
3392         if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3393             audio_enc->sample_fmt = audio_sample_fmt;
3394         if (audio_sample_rate)
3395             audio_enc->sample_rate = audio_sample_rate;
3396     }
3397     if (audio_language) {
3398         av_dict_set(&st->metadata, "language", audio_language, 0);
3399         av_freep(&audio_language);
3400     }
3401
3402     /* reset some key parameters */
3403     audio_disable = 0;
3404
3405     return ost;
3406 }
3407
3408 static OutputStream *new_data_stream(AVFormatContext *oc)
3409 {
3410     AVStream *st;
3411     OutputStream *ost;
3412     AVCodecContext *data_enc;
3413
3414     ost = new_output_stream(oc, AVMEDIA_TYPE_DATA);
3415     st  = ost->st;
3416     data_enc = st->codec;
3417     if (!st->stream_copy) {
3418         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3419         exit_program(1);
3420     }
3421
3422     if (data_codec_tag)
3423         data_enc->codec_tag= data_codec_tag;
3424
3425     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3426         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3427     }
3428
3429     data_disable = 0;
3430     return ost;
3431 }
3432
3433 static OutputStream *new_subtitle_stream(AVFormatContext *oc)
3434 {
3435     AVStream *st;
3436     OutputStream *ost;
3437     AVCodecContext *subtitle_enc;
3438
3439     ost = new_output_stream(oc, AVMEDIA_TYPE_SUBTITLE);
3440     st  = ost->st;
3441     subtitle_enc = st->codec;
3442
3443     ost->bitstream_filters = subtitle_bitstream_filters;
3444     subtitle_bitstream_filters= NULL;
3445
3446     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3447
3448     if(subtitle_codec_tag)
3449         subtitle_enc->codec_tag= subtitle_codec_tag;
3450
3451     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3452         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3453     }
3454
3455     if (subtitle_language) {
3456         av_dict_set(&st->metadata, "language", subtitle_language, 0);
3457         av_freep(&subtitle_language);
3458     }
3459
3460     subtitle_disable = 0;
3461     return ost;
3462 }
3463
3464 /* arg format is "output-stream-index:streamid-value". */
3465 static int opt_streamid(const char *opt, const char *arg)
3466 {
3467     int idx;
3468     char *p;
3469     char idx_str[16];
3470
3471     av_strlcpy(idx_str, arg, sizeof(idx_str));
3472     p = strchr(idx_str, ':');
3473     if (!p) {
3474         fprintf(stderr,
3475                 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3476                 arg, opt);
3477         exit_program(1);
3478     }
3479     *p++ = '\0';
3480     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
3481     streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3482     streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3483     return 0;
3484 }
3485
3486 static int copy_chapters(int infile, int outfile)
3487 {
3488     AVFormatContext *is = input_files[infile].ctx;
3489     AVFormatContext *os = output_files[outfile].ctx;
3490     int i;
3491
3492     for (i = 0; i < is->nb_chapters; i++) {
3493         AVChapter *in_ch = is->chapters[i], *out_ch;
3494         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
3495                                       AV_TIME_BASE_Q, in_ch->time_base);
3496         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
3497                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3498
3499
3500         if (in_ch->end < ts_off)
3501             continue;
3502         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3503             break;
3504
3505         out_ch = av_mallocz(sizeof(AVChapter));
3506         if (!out_ch)
3507             return AVERROR(ENOMEM);
3508
3509         out_ch->id        = in_ch->id;
3510         out_ch->time_base = in_ch->time_base;
3511         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
3512         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
3513
3514         if (metadata_chapters_autocopy)
3515             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3516
3517         os->nb_chapters++;
3518         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3519         if (!os->chapters)
3520             return AVERROR(ENOMEM);
3521         os->chapters[os->nb_chapters - 1] = out_ch;
3522     }
3523     return 0;
3524 }
3525
3526 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
3527 {
3528     int i, err;
3529     AVFormatContext *ic = NULL;
3530
3531     err = avformat_open_input(&ic, filename, NULL, NULL);
3532     if (err < 0)
3533         return err;
3534     /* copy stream format */
3535     for(i=0;i<ic->nb_streams;i++) {
3536         AVStream *st;
3537         OutputStream *ost;
3538         AVCodec *codec;
3539
3540         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3541         ost   = new_output_stream(s, codec->type);
3542         st    = ost->st;
3543
3544         // FIXME: a more elegant solution is needed
3545         memcpy(st, ic->streams[i], sizeof(AVStream));
3546         st->info = av_malloc(sizeof(*st->info));
3547         memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
3548         avcodec_copy_context(st->codec, ic->streams[i]->codec);
3549
3550         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3551             choose_sample_fmt(st, codec);
3552         else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3553             choose_pixel_fmt(st, codec);
3554     }
3555
3556     av_close_input_file(ic);
3557     return 0;
3558 }
3559
3560 static int opt_output_file(const char *opt, const char *filename)
3561 {
3562     AVFormatContext *oc;
3563     int i, err;
3564     AVOutputFormat *file_oformat;
3565     OutputStream *ost;
3566     InputStream  *ist;
3567
3568     if (!strcmp(filename, "-"))
3569         filename = "pipe:";
3570
3571     err = avformat_alloc_output_context2(&oc, NULL, last_asked_format, filename);
3572     last_asked_format = NULL;
3573     if (!oc) {
3574         print_error(filename, err);
3575         exit_program(1);
3576     }
3577
3578     file_oformat= oc->oformat;
3579
3580     if (!strcmp(file_oformat->name, "ffm") &&
3581         av_strstart(filename, "http:", NULL)) {
3582         /* special case for files sent to ffserver: we get the stream
3583            parameters from ffserver */
3584         int err = read_ffserver_streams(oc, filename);
3585         if (err < 0) {
3586             print_error(filename, err);
3587             exit_program(1);
3588         }
3589     } else if (!nb_stream_maps) {
3590         /* pick the "best" stream of each type */
3591 #define NEW_STREAM(type, index)\
3592         if (index >= 0) {\
3593             ost = new_ ## type ## _stream(oc);\
3594             ost->source_index = index;\
3595             ost->sync_ist     = &input_streams[index];\
3596             input_streams[index].discard = 0;\
3597         }
3598
3599         /* video: highest resolution */
3600         if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3601             int area = 0, idx = -1;
3602             for (i = 0; i < nb_input_streams; i++) {
3603                 ist = &input_streams[i];
3604                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3605                     ist->st->codec->width * ist->st->codec->height > area) {
3606                     area = ist->st->codec->width * ist->st->codec->height;
3607                     idx = i;
3608                 }
3609             }
3610             NEW_STREAM(video, idx);
3611         }
3612
3613         /* audio: most channels */
3614         if (!audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3615             int channels = 0, idx = -1;
3616             for (i = 0; i < nb_input_streams; i++) {
3617                 ist = &input_streams[i];
3618                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3619                     ist->st->codec->channels > channels) {
3620                     channels = ist->st->codec->channels;
3621                     idx = i;
3622                 }
3623             }
3624             NEW_STREAM(audio, idx);
3625         }
3626
3627         /* subtitles: pick first */
3628         if (!subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3629             for (i = 0; i < nb_input_streams; i++)
3630                 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3631                     NEW_STREAM(subtitle, i);
3632                     break;
3633                 }
3634         }
3635         /* do something with data? */
3636     } else {
3637         for (i = 0; i < nb_stream_maps; i++) {
3638             StreamMap *map = &stream_maps[i];
3639
3640             if (map->disabled)
3641                 continue;
3642
3643             ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3644             switch (ist->st->codec->codec_type) {
3645             case AVMEDIA_TYPE_VIDEO:    ost = new_video_stream(oc);    break;
3646             case AVMEDIA_TYPE_AUDIO:    ost = new_audio_stream(oc);    break;
3647             case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(oc); break;
3648             case AVMEDIA_TYPE_DATA:     ost = new_data_stream(oc);     break;
3649             default:
3650                 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3651                        map->file_index, map->stream_index);
3652                 exit_program(1);
3653             }
3654
3655             ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3656             ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3657                                            map->sync_stream_index];
3658             ist->discard = 0;
3659         }
3660     }
3661
3662     av_dict_copy(&oc->metadata, metadata, 0);
3663     av_dict_free(&metadata);
3664
3665
3666     output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
3667     output_files[nb_output_files - 1].ctx       = oc;
3668     output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
3669     output_files[nb_output_files - 1].recording_time = recording_time;
3670     output_files[nb_output_files - 1].start_time     = start_time;
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));
3677             exit_program(1);
3678  &nb