3 * Copyright (c) 2000-2011 The libav developers.
5 * This file is part of Libav.
7 * Libav 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.
12 * Libav 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.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
62 #if HAVE_GETPROCESSMEMORYINFO
68 #include <sys/select.h>
75 #include "libavutil/avassert.h"
77 const char program_name[] = "avconv";
78 const int program_birth_year = 2000;
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82 int disabled; /** 1 is this mapping is disabled by a negative map */
86 int sync_stream_index;
90 * select an input file for an output file
92 typedef struct MetadataMap {
93 int file; ///< file index
94 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
95 int index; ///< stream/chapter/program number
98 static const OptionDef options[];
100 static AVDictionary *ts_scale;
102 static AVDictionary *codec_names;
104 /* first item specifies output metadata, second is input */
105 static MetadataMap (*meta_data_maps)[2] = NULL;
106 static int nb_meta_data_maps;
107 static int metadata_global_autocopy = 1;
108 static int metadata_streams_autocopy = 1;
109 static int metadata_chapters_autocopy = 1;
111 static int chapters_input_file = INT_MAX;
113 /* indexed by output file stream index */
114 static int *streamid_map = NULL;
115 static int nb_streamid_map = 0;
117 static int frame_width = 0;
118 static int frame_height = 0;
119 static float frame_aspect_ratio = 0;
120 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
121 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
122 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
123 static AVRational frame_rate;
124 static float video_qscale = 0;
125 static uint16_t *intra_matrix = NULL;
126 static uint16_t *inter_matrix = NULL;
127 static const char *video_rc_override_string=NULL;
128 static int video_disable = 0;
129 static int video_discard = 0;
130 static unsigned int video_codec_tag = 0;
131 static char *video_language = NULL;
132 static int same_quant = 0;
133 static int do_deinterlace = 0;
134 static int top_field_first = -1;
135 static int me_threshold = 0;
136 static int intra_dc_precision = 8;
137 static int qp_hist = 0;
139 static char *vfilters = NULL;
142 static int audio_sample_rate = 0;
143 #define QSCALE_NONE -99999
144 static float audio_qscale = QSCALE_NONE;
145 static int audio_disable = 0;
146 static int audio_channels = 0;
147 static unsigned int audio_codec_tag = 0;
148 static char *audio_language = NULL;
150 static int subtitle_disable = 0;
151 static char *subtitle_language = NULL;
152 static unsigned int subtitle_codec_tag = 0;
154 static int data_disable = 0;
155 static unsigned int data_codec_tag = 0;
157 static float mux_preload= 0.5;
158 static float mux_max_delay= 0.7;
160 static int file_overwrite = 0;
161 static AVDictionary *metadata;
162 static int do_benchmark = 0;
163 static int do_hex_dump = 0;
164 static int do_pkt_dump = 0;
165 static int do_psnr = 0;
166 static int do_pass = 0;
167 static char *pass_logfilename_prefix = NULL;
168 static int video_sync_method= -1;
169 static int audio_sync_method= 0;
170 static float audio_drift_threshold= 0.1;
171 static int copy_ts= 0;
173 static int opt_shortest = 0;
174 static char *vstats_filename;
175 static FILE *vstats_file;
176 static int opt_programid = 0;
177 static int copy_initial_nonkeyframes = 0;
179 static int rate_emu = 0;
181 static int audio_volume = 256;
183 static int exit_on_error = 0;
184 static int using_stdin = 0;
185 static int verbose = 1;
186 static int64_t video_size = 0;
187 static int64_t audio_size = 0;
188 static int64_t extra_size = 0;
189 static int nb_frames_dup = 0;
190 static int nb_frames_drop = 0;
191 static int input_sync;
192 static int force_fps = 0;
193 static char *forced_key_frames = NULL;
195 static float dts_delta_threshold = 10;
197 static uint8_t *audio_buf;
198 static uint8_t *audio_out;
199 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
201 static short *samples;
203 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
204 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
205 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
207 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
209 typedef struct InputStream {
212 int discard; /* true if stream data should be discarded */
213 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
216 int64_t start; /* time when read started */
217 int64_t next_pts; /* synthetic pts for cases where pkt.pts
219 int64_t pts; /* current pts */
220 PtsCorrectionContext pts_ctx;
222 int is_start; /* is 1 at the start and after a discontinuity */
223 int showed_multi_packet_warning;
227 typedef struct InputFile {
228 AVFormatContext *ctx;
229 int eof_reached; /* true if eof reached */
230 int ist_index; /* index of first stream in ist_table */
231 int buffer_size; /* current total buffer size */
233 int nb_streams; /* number of stream that avconv is aware of; may be different
234 from ctx.nb_streams if new streams appear during av_read_frame() */
237 typedef struct OutputStream {
238 int file_index; /* file index */
239 int index; /* stream index in the output file */
240 int source_index; /* InputStream index */
241 AVStream *st; /* stream in the output file */
242 int encoding_needed; /* true if encoding needed for this stream */
244 /* input pts and corresponding output pts
246 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
247 struct InputStream *sync_ist; /* input stream to sync against */
248 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
249 AVBitStreamFilterContext *bitstream_filters;
254 AVFrame pict_tmp; /* temporary image for resampling */
255 struct SwsContext *img_resample_ctx; /* for image resampling */
258 int resample_pix_fmt;
259 AVRational frame_rate;
261 float frame_aspect_ratio;
263 /* forced key frames */
264 int64_t *forced_kf_pts;
270 ReSampleContext *resample; /* for audio resampling */
271 int resample_sample_fmt;
272 int resample_channels;
273 int resample_sample_rate;
275 AVAudioConvert *reformat_ctx;
276 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
280 AVFilterContext *output_video_filter;
281 AVFilterContext *input_video_filter;
282 AVFilterBufferRef *picref;
284 AVFilterGraph *graph;
289 int is_past_recording_time;
293 typedef struct OutputFile {
294 AVFormatContext *ctx;
296 int ost_index; /* index of the first stream in output_streams */
297 int64_t recording_time; /* desired length of the resulting file in microseconds */
298 int64_t start_time; /* start time in microseconds */
299 uint64_t limit_filesize;
302 static InputStream *input_streams = NULL;
303 static int nb_input_streams = 0;
304 static InputFile *input_files = NULL;
305 static int nb_input_files = 0;
307 static OutputStream *output_streams = NULL;
308 static int nb_output_streams = 0;
309 static OutputFile *output_files = NULL;
310 static int nb_output_files = 0;
312 typedef struct OptionsContext {
313 /* input/output options */
318 int64_t input_ts_offset;
321 StreamMap *stream_maps;
324 int64_t recording_time;
325 uint64_t limit_filesize;
328 static void reset_options(OptionsContext *o)
330 const OptionDef *po = options;
332 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
334 void *dst = (uint8_t*)o + po->u.off;
336 if (po->flags & OPT_SPEC) {
337 SpecifierOpt **so = dst;
338 int i, *count = (int*)(so + 1);
339 for (i = 0; i < *count; i++) {
340 av_freep(&(*so)[i].specifier);
341 if (po->flags & OPT_STRING)
342 av_freep(&(*so)[i].u.str);
346 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
351 av_freep(&o->stream_maps);
353 memset(o, 0, sizeof(*o));
355 o->recording_time = INT64_MAX;
356 o->limit_filesize = UINT64_MAX;
364 static int configure_video_filters(InputStream *ist, OutputStream *ost)
366 AVFilterContext *last_filter, *filter;
367 /** filter graph containing all filters including input & output */
368 AVCodecContext *codec = ost->st->codec;
369 AVCodecContext *icodec = ist->st->codec;
370 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
371 AVRational sample_aspect_ratio;
375 ost->graph = avfilter_graph_alloc();
377 if (ist->st->sample_aspect_ratio.num){
378 sample_aspect_ratio = ist->st->sample_aspect_ratio;
380 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
382 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
383 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
384 sample_aspect_ratio.num, sample_aspect_ratio.den);
386 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
387 "src", args, NULL, ost->graph);
390 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
391 "out", NULL, &ffsink_ctx, ost->graph);
394 last_filter = ost->input_video_filter;
396 if (codec->width != icodec->width || codec->height != icodec->height) {
397 snprintf(args, 255, "%d:%d:flags=0x%X",
401 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
402 NULL, args, NULL, ost->graph)) < 0)
404 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
406 last_filter = filter;
409 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
410 ost->graph->scale_sws_opts = av_strdup(args);
413 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
414 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
416 outputs->name = av_strdup("in");
417 outputs->filter_ctx = last_filter;
418 outputs->pad_idx = 0;
419 outputs->next = NULL;
421 inputs->name = av_strdup("out");
422 inputs->filter_ctx = ost->output_video_filter;
426 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
428 av_freep(&ost->avfilter);
430 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
434 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
437 codec->width = ost->output_video_filter->inputs[0]->w;
438 codec->height = ost->output_video_filter->inputs[0]->h;
439 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
440 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
441 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
442 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
446 #endif /* CONFIG_AVFILTER */
448 static void term_exit(void)
450 av_log(NULL, AV_LOG_QUIET, "");
453 static volatile int received_sigterm = 0;
454 static volatile int received_nb_signals = 0;
457 sigterm_handler(int sig)
459 received_sigterm = sig;
460 received_nb_signals++;
464 static void term_init(void)
466 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
467 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
469 signal(SIGXCPU, sigterm_handler);
473 static int decode_interrupt_cb(void)
475 return received_nb_signals > 1;
478 void exit_program(int ret)
483 for(i=0;i<nb_output_files;i++) {
484 AVFormatContext *s = output_files[i].ctx;
485 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
487 avformat_free_context(s);
488 av_dict_free(&output_files[i].opts);
490 for(i=0;i<nb_input_files;i++) {
491 av_close_input_file(input_files[i].ctx);
493 for (i = 0; i < nb_input_streams; i++)
494 av_dict_free(&input_streams[i].opts);
496 av_free(intra_matrix);
497 av_free(inter_matrix);
501 av_free(vstats_filename);
503 av_free(meta_data_maps);
505 av_freep(&input_streams);
506 av_freep(&input_files);
507 av_freep(&output_streams);
508 av_freep(&output_files);
513 allocated_audio_buf_size= allocated_audio_out_size= 0;
520 if (received_sigterm) {
522 "Received signal %d: terminating.\n",
523 (int) received_sigterm);
527 exit(ret); /* not all OS-es handle main() return value */
530 static void assert_avoptions(AVDictionary *m)
532 AVDictionaryEntry *t;
533 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
534 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
539 static void assert_codec_experimental(AVCodecContext *c, int encoder)
541 const char *codec_string = encoder ? "encoder" : "decoder";
543 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
544 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
545 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
546 "results.\nAdd '-strict experimental' if you want to use it.\n",
547 codec_string, c->codec->name);
548 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
549 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
550 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
551 codec_string, codec->name);
556 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
558 if(codec && codec->sample_fmts){
559 const enum AVSampleFormat *p= codec->sample_fmts;
561 if(*p == st->codec->sample_fmt)
565 av_log(NULL, AV_LOG_WARNING,
566 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
567 av_get_sample_fmt_name(st->codec->sample_fmt),
569 av_get_sample_fmt_name(codec->sample_fmts[0]));
570 st->codec->sample_fmt = codec->sample_fmts[0];
576 * Update the requested input sample format based on the output sample format.
577 * This is currently only used to request float output from decoders which
578 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
579 * Ideally this will be removed in the future when decoders do not do format
580 * conversion and only output in their native format.
582 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
585 /* if sample formats match or a decoder sample format has already been
586 requested, just return */
587 if (enc->sample_fmt == dec->sample_fmt ||
588 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
591 /* if decoder supports more than one output format */
592 if (dec_codec && dec_codec->sample_fmts &&
593 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
594 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
595 const enum AVSampleFormat *p;
596 int min_dec = -1, min_inc = -1;
598 /* find a matching sample format in the encoder */
599 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
600 if (*p == enc->sample_fmt) {
601 dec->request_sample_fmt = *p;
603 } else if (*p > enc->sample_fmt) {
604 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
606 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
609 /* if none match, provide the one that matches quality closest */
610 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
611 enc->sample_fmt - min_dec;
615 static void choose_sample_rate(AVStream *st, AVCodec *codec)
617 if(codec && codec->supported_samplerates){
618 const int *p= codec->supported_samplerates;
620 int best_dist=INT_MAX;
622 int dist= abs(st->codec->sample_rate - *p);
623 if(dist < best_dist){
629 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
631 st->codec->sample_rate= best;
635 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
637 if(codec && codec->pix_fmts){
638 const enum PixelFormat *p= codec->pix_fmts;
639 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
640 if(st->codec->codec_id==CODEC_ID_MJPEG){
641 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
642 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
643 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};
647 if(*p == st->codec->pix_fmt)
651 if(st->codec->pix_fmt != PIX_FMT_NONE)
652 av_log(NULL, AV_LOG_WARNING,
653 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
654 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
656 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
657 st->codec->pix_fmt = codec->pix_fmts[0];
663 get_sync_ipts(const OutputStream *ost)
665 const InputStream *ist = ost->sync_ist;
666 OutputFile *of = &output_files[ost->file_index];
667 return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
670 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
674 AVPacket new_pkt= *pkt;
675 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
676 &new_pkt.data, &new_pkt.size,
677 pkt->data, pkt->size,
678 pkt->flags & AV_PKT_FLAG_KEY);
681 new_pkt.destruct= av_destruct_packet;
683 fprintf(stderr, "%s failed for stream %d, codec %s",
684 bsfc->filter->name, pkt->stream_index,
685 avctx->codec ? avctx->codec->name : "copy");
695 ret= av_interleaved_write_frame(s, pkt);
697 print_error("av_interleaved_write_frame()", ret);
702 static void do_audio_out(AVFormatContext *s,
705 unsigned char *buf, int size)
708 int64_t audio_out_size, audio_buf_size;
709 int64_t allocated_for_size= size;
711 int size_out, frame_bytes, ret, resample_changed;
712 AVCodecContext *enc= ost->st->codec;
713 AVCodecContext *dec= ist->st->codec;
714 int osize = av_get_bytes_per_sample(enc->sample_fmt);
715 int isize = av_get_bytes_per_sample(dec->sample_fmt);
716 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
719 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
720 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
721 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
722 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
723 audio_buf_size*= osize*enc->channels;
725 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
726 if(coded_bps > 8*osize)
727 audio_out_size= audio_out_size * coded_bps / (8*osize);
728 audio_out_size += FF_MIN_BUFFER_SIZE;
730 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
731 fprintf(stderr, "Buffer sizes too large\n");
735 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
736 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
737 if (!audio_buf || !audio_out){
738 fprintf(stderr, "Out of memory in do_audio_out\n");
742 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
743 ost->audio_resample = 1;
745 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
746 ost->resample_channels != dec->channels ||
747 ost->resample_sample_rate != dec->sample_rate;
749 if ((ost->audio_resample && !ost->resample) || resample_changed) {
750 if (resample_changed) {
751 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",
752 ist->file_index, ist->st->index,
753 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
754 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
755 ost->resample_sample_fmt = dec->sample_fmt;
756 ost->resample_channels = dec->channels;
757 ost->resample_sample_rate = dec->sample_rate;
759 audio_resample_close(ost->resample);
761 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
762 if (audio_sync_method <= 1 &&
763 ost->resample_sample_fmt == enc->sample_fmt &&
764 ost->resample_channels == enc->channels &&
765 ost->resample_sample_rate == enc->sample_rate) {
766 ost->resample = NULL;
767 ost->audio_resample = 0;
768 } else if (ost->audio_resample) {
769 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
770 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
771 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
772 enc->sample_rate, dec->sample_rate,
773 enc->sample_fmt, dec->sample_fmt,
775 if (!ost->resample) {
776 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
777 dec->channels, dec->sample_rate,
778 enc->channels, enc->sample_rate);
784 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
785 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
786 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
787 if (ost->reformat_ctx)
788 av_audio_convert_free(ost->reformat_ctx);
789 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
790 dec->sample_fmt, 1, NULL, 0);
791 if (!ost->reformat_ctx) {
792 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
793 av_get_sample_fmt_name(dec->sample_fmt),
794 av_get_sample_fmt_name(enc->sample_fmt));
797 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
800 if(audio_sync_method){
801 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
802 - av_fifo_size(ost->fifo)/(enc->channels * 2);
803 double idelta= delta*dec->sample_rate / enc->sample_rate;
804 int byte_delta= ((int)idelta)*2*dec->channels;
806 //FIXME resample delay
807 if(fabs(delta) > 50){
808 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
810 byte_delta= FFMAX(byte_delta, -size);
814 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
819 static uint8_t *input_tmp= NULL;
820 input_tmp= av_realloc(input_tmp, byte_delta + size);
822 if(byte_delta > allocated_for_size - size){
823 allocated_for_size= byte_delta + (int64_t)size;
828 memset(input_tmp, 0, byte_delta);
829 memcpy(input_tmp + byte_delta, buf, size);
833 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
835 }else if(audio_sync_method>1){
836 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
837 av_assert0(ost->audio_resample);
839 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
840 // 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));
841 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
845 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
846 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
848 if (ost->audio_resample) {
850 size_out = audio_resample(ost->resample,
851 (short *)buftmp, (short *)buf,
852 size / (dec->channels * isize));
853 size_out = size_out * enc->channels * osize;
859 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
860 const void *ibuf[6]= {buftmp};
861 void *obuf[6]= {audio_buf};
862 int istride[6]= {isize};
863 int ostride[6]= {osize};
864 int len= size_out/istride[0];
865 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
866 printf("av_audio_convert() failed\n");
872 size_out = len*osize;
875 /* now encode as many frames as possible */
876 if (enc->frame_size > 1) {
877 /* output resampled raw samples */
878 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
879 fprintf(stderr, "av_fifo_realloc2() failed\n");
882 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
884 frame_bytes = enc->frame_size * osize * enc->channels;
886 while (av_fifo_size(ost->fifo) >= frame_bytes) {
888 av_init_packet(&pkt);
890 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
892 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
894 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
897 fprintf(stderr, "Audio encoding failed\n");
901 pkt.stream_index= ost->index;
904 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
905 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
906 pkt.flags |= AV_PKT_FLAG_KEY;
907 write_frame(s, &pkt, enc, ost->bitstream_filters);
909 ost->sync_opts += enc->frame_size;
913 av_init_packet(&pkt);
915 ost->sync_opts += size_out / (osize * enc->channels);
917 /* output a pcm frame */
918 /* determine the size of the coded buffer */
921 size_out = size_out*coded_bps/8;
923 if(size_out > audio_out_size){
924 fprintf(stderr, "Internal error, buffer size too small\n");
928 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
929 ret = avcodec_encode_audio(enc, audio_out, size_out,
932 fprintf(stderr, "Audio encoding failed\n");
936 pkt.stream_index= ost->index;
939 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
940 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
941 pkt.flags |= AV_PKT_FLAG_KEY;
942 write_frame(s, &pkt, enc, ost->bitstream_filters);
946 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
950 AVPicture picture_tmp;
953 dec = ist->st->codec;
955 /* deinterlace : must be done before any resize */
956 if (do_deinterlace) {
959 /* create temporary picture */
960 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
961 buf = av_malloc(size);
965 picture2 = &picture_tmp;
966 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
968 if(avpicture_deinterlace(picture2, picture,
969 dec->pix_fmt, dec->width, dec->height) < 0) {
970 /* if error, do not deinterlace */
971 fprintf(stderr, "Deinterlacing failed\n");
980 if (picture != picture2)
981 *picture = *picture2;
985 static void do_subtitle_out(AVFormatContext *s,
991 static uint8_t *subtitle_out = NULL;
992 int subtitle_out_max_size = 1024 * 1024;
993 int subtitle_out_size, nb, i;
997 if (pts == AV_NOPTS_VALUE) {
998 fprintf(stderr, "Subtitle packets must have a pts\n");
1004 enc = ost->st->codec;
1006 if (!subtitle_out) {
1007 subtitle_out = av_malloc(subtitle_out_max_size);
1010 /* Note: DVB subtitle need one packet to draw them and one other
1011 packet to clear them */
1012 /* XXX: signal it in the codec context ? */
1013 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1018 for(i = 0; i < nb; i++) {
1019 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1020 // start_display_time is required to be 0
1021 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1022 sub->end_display_time -= sub->start_display_time;
1023 sub->start_display_time = 0;
1024 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1025 subtitle_out_max_size, sub);
1026 if (subtitle_out_size < 0) {
1027 fprintf(stderr, "Subtitle encoding failed\n");
1031 av_init_packet(&pkt);
1032 pkt.stream_index = ost->index;
1033 pkt.data = subtitle_out;
1034 pkt.size = subtitle_out_size;
1035 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1036 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1037 /* XXX: the pts correction is handled here. Maybe handling
1038 it in the codec would be better */
1040 pkt.pts += 90 * sub->start_display_time;
1042 pkt.pts += 90 * sub->end_display_time;
1044 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1048 static int bit_buffer_size= 1024*256;
1049 static uint8_t *bit_buffer= NULL;
1051 static void do_video_resample(OutputStream *ost,
1053 AVFrame *in_picture,
1054 AVFrame **out_picture)
1056 int resample_changed = 0;
1057 AVCodecContext *dec = ist->st->codec;
1058 *out_picture = in_picture;
1060 resample_changed = ost->resample_width != dec->width ||
1061 ost->resample_height != dec->height ||
1062 ost->resample_pix_fmt != dec->pix_fmt;
1064 if (resample_changed) {
1065 av_log(NULL, AV_LOG_INFO,
1066 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1067 ist->file_index, ist->st->index,
1068 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1069 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1070 if(!ost->video_resample)
1071 ost->video_resample = 1;
1074 #if !CONFIG_AVFILTER
1075 if (ost->video_resample) {
1076 *out_picture = &ost->pict_tmp;
1077 if (resample_changed) {
1078 /* initialize a new scaler context */
1079 sws_freeContext(ost->img_resample_ctx);
1080 ost->img_resample_ctx = sws_getContext(
1081 ist->st->codec->width,
1082 ist->st->codec->height,
1083 ist->st->codec->pix_fmt,
1084 ost->st->codec->width,
1085 ost->st->codec->height,
1086 ost->st->codec->pix_fmt,
1087 ost->sws_flags, NULL, NULL, NULL);
1088 if (ost->img_resample_ctx == NULL) {
1089 fprintf(stderr, "Cannot get resampling context\n");
1093 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1094 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1097 if (resample_changed) {
1098 avfilter_graph_free(&ost->graph);
1099 if (configure_video_filters(ist, ost)) {
1100 fprintf(stderr, "Error reinitializing filters!\n");
1105 if (resample_changed) {
1106 ost->resample_width = dec->width;
1107 ost->resample_height = dec->height;
1108 ost->resample_pix_fmt = dec->pix_fmt;
1113 static void do_video_out(AVFormatContext *s,
1116 AVFrame *in_picture,
1117 int *frame_size, float quality)
1119 int nb_frames, i, ret, format_video_sync;
1120 AVFrame *final_picture;
1121 AVCodecContext *enc;
1124 enc = ost->st->codec;
1126 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1128 /* by default, we output a single frame */
1133 format_video_sync = video_sync_method;
1134 if (format_video_sync < 0)
1135 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1137 if (format_video_sync) {
1138 double vdelta = sync_ipts - ost->sync_opts;
1139 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1142 else if (format_video_sync == 2) {
1145 }else if(vdelta>0.6)
1146 ost->sync_opts= lrintf(sync_ipts);
1147 }else if (vdelta > 1.1)
1148 nb_frames = lrintf(vdelta);
1149 //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);
1150 if (nb_frames == 0){
1153 fprintf(stderr, "*** drop!\n");
1154 }else if (nb_frames > 1) {
1155 nb_frames_dup += nb_frames - 1;
1157 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1160 ost->sync_opts= lrintf(sync_ipts);
1162 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1166 do_video_resample(ost, ist, in_picture, &final_picture);
1168 /* duplicates frame if needed */
1169 for(i=0;i<nb_frames;i++) {
1171 av_init_packet(&pkt);
1172 pkt.stream_index= ost->index;
1174 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1175 /* raw pictures are written as AVPicture structure to
1176 avoid any copies. We support temporarily the older
1178 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1179 enc->coded_frame->top_field_first = in_picture->top_field_first;
1180 pkt.data= (uint8_t *)final_picture;
1181 pkt.size= sizeof(AVPicture);
1182 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1183 pkt.flags |= AV_PKT_FLAG_KEY;
1185 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1187 AVFrame big_picture;
1189 big_picture= *final_picture;
1190 /* better than nothing: use input picture interlaced
1192 big_picture.interlaced_frame = in_picture->interlaced_frame;
1193 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1194 if(top_field_first == -1)
1195 big_picture.top_field_first = in_picture->top_field_first;
1197 big_picture.top_field_first = top_field_first;
1200 /* handles same_quant here. This is not correct because it may
1201 not be a global option */
1202 big_picture.quality = quality;
1204 big_picture.pict_type = 0;
1205 // big_picture.pts = AV_NOPTS_VALUE;
1206 big_picture.pts= ost->sync_opts;
1207 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1208 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1209 if (ost->forced_kf_index < ost->forced_kf_count &&
1210 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1211 big_picture.pict_type = AV_PICTURE_TYPE_I;
1212 ost->forced_kf_index++;
1214 ret = avcodec_encode_video(enc,
1215 bit_buffer, bit_buffer_size,
1218 fprintf(stderr, "Video encoding failed\n");
1223 pkt.data= bit_buffer;
1225 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1226 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1227 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1228 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1229 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1231 if(enc->coded_frame->key_frame)
1232 pkt.flags |= AV_PKT_FLAG_KEY;
1233 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1236 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1237 // enc->frame_number-1, ret, enc->pict_type);
1238 /* if two pass, output log */
1239 if (ost->logfile && enc->stats_out) {
1240 fprintf(ost->logfile, "%s", enc->stats_out);
1245 ost->frame_number++;
1249 static double psnr(double d){
1250 return -10.0*log(d)/log(10.0);
1253 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1256 AVCodecContext *enc;
1258 double ti1, bitrate, avg_bitrate;
1260 /* this is executed just the first time do_video_stats is called */
1262 vstats_file = fopen(vstats_filename, "w");
1269 enc = ost->st->codec;
1270 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1271 frame_number = ost->frame_number;
1272 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1273 if (enc->flags&CODEC_FLAG_PSNR)
1274 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1276 fprintf(vstats_file,"f_size= %6d ", frame_size);
1277 /* compute pts value */
1278 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1282 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1283 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1284 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1285 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1286 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1290 static void print_report(OutputFile *output_files,
1291 OutputStream *ost_table, int nb_ostreams,
1292 int is_last_report, int64_t timer_start)
1296 AVFormatContext *oc;
1298 AVCodecContext *enc;
1299 int frame_number, vid, i;
1300 double bitrate, ti1, pts;
1301 static int64_t last_time = -1;
1302 static int qp_histogram[52];
1304 if (!is_last_report) {
1306 /* display the report every 0.5 seconds */
1307 cur_time = av_gettime();
1308 if (last_time == -1) {
1309 last_time = cur_time;
1312 if ((cur_time - last_time) < 500000)
1314 last_time = cur_time;
1318 oc = output_files[0].ctx;
1320 total_size = avio_size(oc->pb);
1321 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1322 total_size= avio_tell(oc->pb);
1327 for(i=0;i<nb_ostreams;i++) {
1329 ost = &ost_table[i];
1330 enc = ost->st->codec;
1331 if (!ost->st->stream_copy && enc->coded_frame)
1332 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1333 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1334 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1336 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1337 float t = (av_gettime()-timer_start) / 1000000.0;
1339 frame_number = ost->frame_number;
1340 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1341 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1343 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1347 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1350 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1352 if (enc->flags&CODEC_FLAG_PSNR){
1354 double error, error_sum=0;
1355 double scale, scale_sum=0;
1356 char type[3]= {'Y','U','V'};
1357 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1360 error= enc->error[j];
1361 scale= enc->width*enc->height*255.0*255.0*frame_number;
1363 error= enc->coded_frame->error[j];
1364 scale= enc->width*enc->height*255.0*255.0;
1369 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1371 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1375 /* compute min output value */
1376 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1377 if ((pts < ti1) && (pts > 0))
1383 if (verbose > 0 || is_last_report) {
1384 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1386 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1387 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1388 (double)total_size / 1024, ti1, bitrate);
1390 if (nb_frames_dup || nb_frames_drop)
1391 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1392 nb_frames_dup, nb_frames_drop);
1395 fprintf(stderr, "%s \r", buf);
1400 if (is_last_report && verbose >= 0){
1401 int64_t raw= audio_size + video_size + extra_size;
1402 fprintf(stderr, "\n");
1403 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1407 100.0*(total_size - raw)/raw
1412 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1414 int fill_char = 0x00;
1415 if (sample_fmt == AV_SAMPLE_FMT_U8)
1417 memset(buf, fill_char, size);
1420 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1424 for (i = 0; i < nb_ostreams; i++) {
1425 OutputStream *ost = &ost_table[i];
1426 AVCodecContext *enc = ost->st->codec;
1427 AVFormatContext *os = output_files[ost->file_index].ctx;
1429 if (!ost->encoding_needed)
1432 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1434 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1440 av_init_packet(&pkt);
1441 pkt.stream_index= ost->index;
1443 switch (ost->st->codec->codec_type) {
1444 case AVMEDIA_TYPE_AUDIO:
1445 fifo_bytes = av_fifo_size(ost->fifo);
1447 /* encode any samples remaining in fifo */
1448 if (fifo_bytes > 0) {
1449 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1450 int fs_tmp = enc->frame_size;
1452 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1453 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1454 enc->frame_size = fifo_bytes / (osize * enc->channels);
1456 int frame_bytes = enc->frame_size*osize*enc->channels;
1457 if (allocated_audio_buf_size < frame_bytes)
1459 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1462 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1463 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1464 ost->st->time_base.num, enc->sample_rate);
1465 enc->frame_size = fs_tmp;
1468 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1471 fprintf(stderr, "Audio encoding failed\n");
1475 pkt.flags |= AV_PKT_FLAG_KEY;
1477 case AVMEDIA_TYPE_VIDEO:
1478 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1480 fprintf(stderr, "Video encoding failed\n");
1484 if(enc->coded_frame && enc->coded_frame->key_frame)
1485 pkt.flags |= AV_PKT_FLAG_KEY;
1486 if (ost->logfile && enc->stats_out) {
1487 fprintf(ost->logfile, "%s", enc->stats_out);
1496 pkt.data = bit_buffer;
1498 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1499 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1500 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1505 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1506 static int output_packet(InputStream *ist, int ist_index,
1507 OutputStream *ost_table, int nb_ostreams,
1508 const AVPacket *pkt)
1510 AVFormatContext *os;
1515 void *buffer_to_free = NULL;
1516 static unsigned int samples_size= 0;
1517 AVSubtitle subtitle, *subtitle_to_free;
1518 int64_t pkt_pts = AV_NOPTS_VALUE;
1520 int frame_available;
1525 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1527 if(ist->next_pts == AV_NOPTS_VALUE)
1528 ist->next_pts= ist->pts;
1532 av_init_packet(&avpkt);
1540 if(pkt->dts != AV_NOPTS_VALUE)
1541 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1542 if(pkt->pts != AV_NOPTS_VALUE)
1543 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1545 //while we have more to decode or while the decoder did output something on EOF
1546 while (avpkt.size > 0 || (!pkt && got_output)) {
1547 uint8_t *data_buf, *decoded_data_buf;
1548 int data_size, decoded_data_size;
1550 ist->pts= ist->next_pts;
1552 if(avpkt.size && avpkt.size != pkt->size &&
1553 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1554 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1555 ist->showed_multi_packet_warning=1;
1558 /* decode the packet if needed */
1559 decoded_data_buf = NULL; /* fail safe */
1560 decoded_data_size= 0;
1561 data_buf = avpkt.data;
1562 data_size = avpkt.size;
1563 subtitle_to_free = NULL;
1564 if (ist->decoding_needed) {
1565 switch(ist->st->codec->codec_type) {
1566 case AVMEDIA_TYPE_AUDIO:{
1567 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1568 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1570 samples= av_malloc(samples_size);
1572 decoded_data_size= samples_size;
1573 /* XXX: could avoid copy if PCM 16 bits with same
1574 endianness as CPU */
1575 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1582 got_output = decoded_data_size > 0;
1583 /* Some bug in mpeg audio decoder gives */
1584 /* decoded_data_size < 0, it seems they are overflows */
1586 /* no audio frame */
1589 decoded_data_buf = (uint8_t *)samples;
1590 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1591 (ist->st->codec->sample_rate * ist->st->codec->channels);
1593 case AVMEDIA_TYPE_VIDEO:
1594 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1595 /* XXX: allocate picture correctly */
1596 avcodec_get_frame_defaults(&picture);
1597 avpkt.pts = pkt_pts;
1598 avpkt.dts = ist->pts;
1599 pkt_pts = AV_NOPTS_VALUE;
1601 ret = avcodec_decode_video2(ist->st->codec,
1602 &picture, &got_output, &avpkt);
1603 quality = same_quant ? picture.quality : 0;
1607 /* no picture yet */
1608 goto discard_packet;
1610 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1611 if (ist->st->codec->time_base.num != 0) {
1612 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1613 ist->next_pts += ((int64_t)AV_TIME_BASE *
1614 ist->st->codec->time_base.num * ticks) /
1615 ist->st->codec->time_base.den;
1618 buffer_to_free = NULL;
1619 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1621 case AVMEDIA_TYPE_SUBTITLE:
1622 ret = avcodec_decode_subtitle2(ist->st->codec,
1623 &subtitle, &got_output, &avpkt);
1627 goto discard_packet;
1629 subtitle_to_free = &subtitle;
1636 switch(ist->st->codec->codec_type) {
1637 case AVMEDIA_TYPE_AUDIO:
1638 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1639 ist->st->codec->sample_rate;
1641 case AVMEDIA_TYPE_VIDEO:
1642 if (ist->st->codec->time_base.num != 0) {
1643 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1644 ist->next_pts += ((int64_t)AV_TIME_BASE *
1645 ist->st->codec->time_base.num * ticks) /
1646 ist->st->codec->time_base.den;
1653 // preprocess audio (volume)
1654 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1655 if (audio_volume != 256) {
1658 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1659 int v = ((*volp) * audio_volume + 128) >> 8;
1660 *volp++ = av_clip_int16(v);
1665 /* frame rate emulation */
1667 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1668 int64_t now = av_gettime() - ist->start;
1672 /* if output time reached then transcode raw format,
1673 encode packets and output them */
1674 for (i = 0; i < nb_ostreams; i++) {
1675 OutputFile *of = &output_files[ost_table[i].file_index];
1678 ost = &ost_table[i];
1679 if (ost->source_index != ist_index)
1682 if (of->start_time && ist->pts < of->start_time)
1685 if (of->recording_time != INT64_MAX &&
1686 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1687 (AVRational){1, 1000000}) >= 0) {
1688 ost->is_past_recording_time = 1;
1693 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1694 ost->input_video_filter) {
1696 if (ist->st->sample_aspect_ratio.num)
1697 sar = ist->st->sample_aspect_ratio;
1699 sar = ist->st->codec->sample_aspect_ratio;
1700 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, ist->pts, sar);
1702 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1703 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1704 while (frame_available) {
1705 AVRational ist_pts_tb;
1706 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1707 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1709 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1711 os = output_files[ost->file_index].ctx;
1713 /* set the input output pts pairs */
1714 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1716 if (ost->encoding_needed) {
1717 av_assert0(ist->decoding_needed);
1718 switch(ost->st->codec->codec_type) {
1719 case AVMEDIA_TYPE_AUDIO:
1720 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1722 case AVMEDIA_TYPE_VIDEO:
1724 if (ost->picref->video && !ost->frame_aspect_ratio)
1725 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1727 do_video_out(os, ost, ist, &picture, &frame_size,
1728 same_quant ? quality : ost->st->codec->global_quality);
1729 if (vstats_filename && frame_size)
1730 do_video_stats(os, ost, frame_size);
1732 case AVMEDIA_TYPE_SUBTITLE:
1733 do_subtitle_out(os, ost, ist, &subtitle,
1740 AVFrame avframe; //FIXME/XXX remove this
1742 int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1744 av_init_packet(&opkt);
1746 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1747 #if !CONFIG_AVFILTER
1753 /* no reencoding needed : output the packet directly */
1754 /* force the input stream PTS */
1756 avcodec_get_frame_defaults(&avframe);
1757 ost->st->codec->coded_frame= &avframe;
1758 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1760 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1761 audio_size += data_size;
1762 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1763 video_size += data_size;
1767 opkt.stream_index= ost->index;
1768 if(pkt->pts != AV_NOPTS_VALUE)
1769 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1771 opkt.pts= AV_NOPTS_VALUE;
1773 if (pkt->dts == AV_NOPTS_VALUE)
1774 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1776 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1777 opkt.dts -= ost_tb_start_time;
1779 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1780 opkt.flags= pkt->flags;
1782 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1783 if( ost->st->codec->codec_id != CODEC_ID_H264
1784 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1785 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1787 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1788 opkt.destruct= av_destruct_packet;
1790 opkt.data = data_buf;
1791 opkt.size = data_size;
1794 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1795 ost->st->codec->frame_number++;
1796 ost->frame_number++;
1797 av_free_packet(&opkt);
1801 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1802 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1804 avfilter_unref_buffer(ost->picref);
1809 av_free(buffer_to_free);
1810 /* XXX: allocate the subtitles in the codec ? */
1811 if (subtitle_to_free) {
1812 avsubtitle_free(subtitle_to_free);
1813 subtitle_to_free = NULL;
1821 static void print_sdp(OutputFile *output_files, int n)
1825 AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1829 for (i = 0; i < n; i++)
1830 avc[i] = output_files[i].ctx;
1832 av_sdp_create(avc, n, sdp, sizeof(sdp));
1833 printf("SDP:\n%s\n", sdp);
1838 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1839 char *error, int error_len)
1842 InputStream *ist = &input_streams[ist_index];
1843 if (ist->decoding_needed) {
1844 AVCodec *codec = ist->dec;
1846 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d.%d",
1847 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1848 return AVERROR(EINVAL);
1851 /* update requested sample format for the decoder based on the
1852 corresponding encoder sample format */
1853 for (i = 0; i < nb_output_streams; i++) {
1854 OutputStream *ost = &output_streams[i];
1855 if (ost->source_index == ist_index) {
1856 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1861 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1862 snprintf(error, error_len, "Error while opening decoder for input stream #%d.%d",
1863 ist->file_index, ist->st->index);
1864 return AVERROR(EINVAL);
1866 assert_codec_experimental(ist->st->codec, 0);
1867 assert_avoptions(ist->opts);
1870 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;
1871 ist->next_pts = AV_NOPTS_VALUE;
1872 init_pts_correction(&ist->pts_ctx);
1878 static int transcode_init(OutputFile *output_files,
1879 int nb_output_files,
1880 InputFile *input_files,
1884 AVFormatContext *os;
1885 AVCodecContext *codec, *icodec;
1892 for (i = 0; i < nb_input_streams; i++)
1893 input_streams[i].start = av_gettime();
1895 /* output stream init */
1896 for(i=0;i<nb_output_files;i++) {
1897 os = output_files[i].ctx;
1898 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1899 av_dump_format(os, i, os->filename, 1);
1900 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1901 return AVERROR(EINVAL);
1905 /* for each output stream, we compute the right encoding parameters */
1906 for (i = 0; i < nb_output_streams; i++) {
1907 ost = &output_streams[i];
1908 os = output_files[ost->file_index].ctx;
1909 ist = &input_streams[ost->source_index];
1911 codec = ost->st->codec;
1912 icodec = ist->st->codec;
1914 ost->st->disposition = ist->st->disposition;
1915 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1916 codec->chroma_sample_location = icodec->chroma_sample_location;
1918 if (ost->st->stream_copy) {
1919 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1921 if (extra_size > INT_MAX) {
1922 return AVERROR(EINVAL);
1925 /* if stream_copy is selected, no need to decode or encode */
1926 codec->codec_id = icodec->codec_id;
1927 codec->codec_type = icodec->codec_type;
1929 if(!codec->codec_tag){
1930 if( !os->oformat->codec_tag
1931 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1932 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1933 codec->codec_tag = icodec->codec_tag;
1936 codec->bit_rate = icodec->bit_rate;
1937 codec->rc_max_rate = icodec->rc_max_rate;
1938 codec->rc_buffer_size = icodec->rc_buffer_size;
1939 codec->extradata= av_mallocz(extra_size);
1940 if (!codec->extradata) {
1941 return AVERROR(ENOMEM);
1943 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1944 codec->extradata_size= icodec->extradata_size;
1945 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){
1946 codec->time_base = icodec->time_base;
1947 codec->time_base.num *= icodec->ticks_per_frame;
1948 av_reduce(&codec->time_base.num, &codec->time_base.den,
1949 codec->time_base.num, codec->time_base.den, INT_MAX);
1951 codec->time_base = ist->st->time_base;
1952 switch(codec->codec_type) {
1953 case AVMEDIA_TYPE_AUDIO:
1954 if(audio_volume != 256) {
1955 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1958 codec->channel_layout = icodec->channel_layout;
1959 codec->sample_rate = icodec->sample_rate;
1960 codec->channels = icodec->channels;
1961 codec->frame_size = icodec->frame_size;
1962 codec->audio_service_type = icodec->audio_service_type;
1963 codec->block_align= icodec->block_align;
1964 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1965 codec->block_align= 0;
1966 if(codec->codec_id == CODEC_ID_AC3)
1967 codec->block_align= 0;
1969 case AVMEDIA_TYPE_VIDEO:
1970 codec->pix_fmt = icodec->pix_fmt;
1971 codec->width = icodec->width;
1972 codec->height = icodec->height;
1973 codec->has_b_frames = icodec->has_b_frames;
1974 if (!codec->sample_aspect_ratio.num) {
1975 codec->sample_aspect_ratio =
1976 ost->st->sample_aspect_ratio =
1977 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1978 ist->st->codec->sample_aspect_ratio.num ?
1979 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1982 case AVMEDIA_TYPE_SUBTITLE:
1983 codec->width = icodec->width;
1984 codec->height = icodec->height;
1986 case AVMEDIA_TYPE_DATA:
1993 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1994 switch(codec->codec_type) {
1995 case AVMEDIA_TYPE_AUDIO:
1996 ost->fifo= av_fifo_alloc(1024);
1998 return AVERROR(ENOMEM);
2000 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2001 if (!codec->sample_rate) {
2002 codec->sample_rate = icodec->sample_rate;
2004 codec->sample_rate >>= icodec->lowres;
2006 choose_sample_rate(ost->st, ost->enc);
2007 codec->time_base = (AVRational){1, codec->sample_rate};
2008 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2009 codec->sample_fmt = icodec->sample_fmt;
2010 choose_sample_fmt(ost->st, ost->enc);
2011 if (!codec->channels)
2012 codec->channels = icodec->channels;
2013 codec->channel_layout = icodec->channel_layout;
2014 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2015 codec->channel_layout = 0;
2016 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2017 icodec->request_channels = codec->channels;
2018 ist->decoding_needed = 1;
2019 ost->encoding_needed = 1;
2020 ost->resample_sample_fmt = icodec->sample_fmt;
2021 ost->resample_sample_rate = icodec->sample_rate;
2022 ost->resample_channels = icodec->channels;
2024 case AVMEDIA_TYPE_VIDEO:
2025 if (codec->pix_fmt == PIX_FMT_NONE)
2026 codec->pix_fmt = icodec->pix_fmt;
2027 choose_pixel_fmt(ost->st, ost->enc);
2029 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2030 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2034 if (!codec->width || !codec->height) {
2035 codec->width = icodec->width;
2036 codec->height = icodec->height;
2039 ost->video_resample = codec->width != icodec->width ||
2040 codec->height != icodec->height ||
2041 codec->pix_fmt != icodec->pix_fmt;
2042 if (ost->video_resample) {
2043 #if !CONFIG_AVFILTER
2044 avcodec_get_frame_defaults(&ost->pict_tmp);
2045 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2046 codec->width, codec->height)) {
2047 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2050 ost->img_resample_ctx = sws_getContext(
2057 ost->sws_flags, NULL, NULL, NULL);
2058 if (ost->img_resample_ctx == NULL) {
2059 fprintf(stderr, "Cannot get resampling context\n");
2063 codec->bits_per_raw_sample= 0;
2066 ost->resample_height = icodec->height;
2067 ost->resample_width = icodec->width;
2068 ost->resample_pix_fmt= icodec->pix_fmt;
2069 ost->encoding_needed = 1;
2070 ist->decoding_needed = 1;
2072 if (!ost->frame_rate.num)
2073 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2074 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2075 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2076 ost->frame_rate = ost->enc->supported_framerates[idx];
2078 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2081 if (configure_video_filters(ist, ost)) {
2082 fprintf(stderr, "Error opening filters!\n");
2087 case AVMEDIA_TYPE_SUBTITLE:
2088 ost->encoding_needed = 1;
2089 ist->decoding_needed = 1;
2096 if (ost->encoding_needed &&
2097 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2098 char logfilename[1024];
2101 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2102 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2104 if (codec->flags & CODEC_FLAG_PASS1) {
2105 f = fopen(logfilename, "wb");
2107 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2113 size_t logbuffer_size;
2114 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2115 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2118 codec->stats_in = logbuffer;
2122 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2123 int size= codec->width * codec->height;
2124 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2129 bit_buffer = av_malloc(bit_buffer_size);
2131 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2133 return AVERROR(ENOMEM);
2136 /* open each encoder */
2137 for (i = 0; i < nb_output_streams; i++) {
2138 ost = &output_streams[i];
2139 if (ost->encoding_needed) {
2140 AVCodec *codec = ost->enc;
2141 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2143 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2144 ost->st->codec->codec_id, ost->file_index, ost->index);
2145 ret = AVERROR(EINVAL);
2148 if (dec->subtitle_header) {
2149 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2150 if (!ost->st->codec->subtitle_header) {
2151 ret = AVERROR(ENOMEM);
2154 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2155 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2157 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2158 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2159 ost->file_index, ost->index);
2160 ret = AVERROR(EINVAL);
2163 assert_codec_experimental(ost->st->codec, 1);
2164 assert_avoptions(ost->opts);
2165 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2166 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2167 "It takes bits/s as argument, not kbits/s\n");
2168 extra_size += ost->st->codec->extradata_size;
2172 /* init input streams */
2173 for (i = 0; i < nb_input_streams; i++)
2174 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2177 /* open files and write file headers */
2178 for (i = 0; i < nb_output_files; i++) {
2179 os = output_files[i].ctx;
2180 if (avformat_write_header(os, &output_files[i].opts) < 0) {
2181 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2182 ret = AVERROR(EINVAL);
2185 assert_avoptions(output_files[i].opts);
2186 if (strcmp(os->oformat->name, "rtp")) {
2192 /* dump the file output parameters - cannot be done before in case
2194 for(i=0;i<nb_output_files;i++) {
2195 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2198 /* dump the stream mapping */
2200 fprintf(stderr, "Stream mapping:\n");
2201 for (i = 0; i < nb_output_streams;i ++) {
2202 ost = &output_streams[i];
2203 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2204 input_streams[ost->source_index].file_index,
2205 input_streams[ost->source_index].st->index,
2208 if (ost->sync_ist != &input_streams[ost->source_index])
2209 fprintf(stderr, " [sync #%d.%d]",
2210 ost->sync_ist->file_index,
2211 ost->sync_ist->st->index);
2212 if (ost->st->stream_copy)
2213 fprintf(stderr, " (copy)");
2215 fprintf(stderr, " (%s -> %s)", input_streams[ost->source_index].dec ?
2216 input_streams[ost->source_index].dec->name : "?",
2217 ost->enc ? ost->enc->name : "?");
2218 fprintf(stderr, "\n");
2223 fprintf(stderr, "%s\n", error);
2228 print_sdp(output_files, nb_output_files);
2235 * The following code is the main loop of the file converter
2237 static int transcode(OutputFile *output_files,
2238 int nb_output_files,
2239 InputFile *input_files,
2243 AVFormatContext *is, *os;
2247 int no_packet_count=0;
2248 int64_t timer_start;
2250 if (!(no_packet = av_mallocz(nb_input_files)))
2253 ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2258 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2261 timer_start = av_gettime();
2263 for(; received_sigterm == 0;) {
2264 int file_index, ist_index;
2269 ipts_min = INT64_MAX;
2272 /* select the stream that we must read now by looking at the
2273 smallest output pts */
2275 for (i = 0; i < nb_output_streams; i++) {
2279 ost = &output_streams[i];
2280 of = &output_files[ost->file_index];
2281 os = output_files[ost->file_index].ctx;
2282 ist = &input_streams[ost->source_index];
2283 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2284 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2286 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2288 if (!input_files[ist->file_index].eof_reached){
2289 if(ipts < ipts_min) {
2291 if(input_sync ) file_index = ist->file_index;
2293 if(opts < opts_min) {
2295 if(!input_sync) file_index = ist->file_index;
2298 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2303 /* if none, if is finished */
2304 if (file_index < 0) {
2305 if(no_packet_count){
2307 memset(no_packet, 0, nb_input_files);
2314 /* read a frame from it and output it in the fifo */
2315 is = input_files[file_index].ctx;
2316 ret= av_read_frame(is, &pkt);
2317 if(ret == AVERROR(EAGAIN)){
2318 no_packet[file_index]=1;
2323 input_files[file_index].eof_reached = 1;
2331 memset(no_packet, 0, nb_input_files);
2334 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2335 is->streams[pkt.stream_index]);
2337 /* the following test is needed in case new streams appear
2338 dynamically in stream : we ignore them */
2339 if (pkt.stream_index >= input_files[file_index].nb_streams)
2340 goto discard_packet;
2341 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2342 ist = &input_streams[ist_index];
2344 goto discard_packet;
2346 if (pkt.dts != AV_NOPTS_VALUE)
2347 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2348 if (pkt.pts != AV_NOPTS_VALUE)
2349 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2351 if (ist->ts_scale) {
2352 if(pkt.pts != AV_NOPTS_VALUE)
2353 pkt.pts *= ist->ts_scale;
2354 if(pkt.dts != AV_NOPTS_VALUE)
2355 pkt.dts *= ist->ts_scale;
2358 // 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);
2359 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2360 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2361 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2362 int64_t delta= pkt_dts - ist->next_pts;
2363 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2364 input_files[ist->file_index].ts_offset -= delta;
2366 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2367 delta, input_files[ist->file_index].ts_offset);
2368 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2369 if(pkt.pts != AV_NOPTS_VALUE)
2370 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2374 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2375 if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2378 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2379 ist->file_index, ist->st->index);
2382 av_free_packet(&pkt);
2387 av_free_packet(&pkt);
2389 /* dump report by using the output first video and audio streams */
2390 print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2393 /* at the end of stream, we must flush the decoder buffers */
2394 for (i = 0; i < nb_input_streams; i++) {
2395 ist = &input_streams[i];
2396 if (ist->decoding_needed) {
2397 output_packet(ist, i, output_streams, nb_output_streams, NULL);
2400 flush_encoders(output_streams, nb_output_streams);
2404 /* write the trailer if needed and close file */
2405 for(i=0;i<nb_output_files;i++) {
2406 os = output_files[i].ctx;
2407 av_write_trailer(os);
2410 /* dump report by using the first video and audio streams */
2411 print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2413 /* close each encoder */
2414 for (i = 0; i < nb_output_streams; i++) {
2415 ost = &output_streams[i];
2416 if (ost->encoding_needed) {
2417 av_freep(&ost->st->codec->stats_in);
2418 avcodec_close(ost->st->codec);
2421 avfilter_graph_free(&ost->graph);
2425 /* close each decoder */
2426 for (i = 0; i < nb_input_streams; i++) {
2427 ist = &input_streams[i];
2428 if (ist->decoding_needed) {
2429 avcodec_close(ist->st->codec);
2437 av_freep(&bit_buffer);
2438 av_freep(&no_packet);
2440 if (output_streams) {
2441 for (i = 0; i < nb_output_streams; i++) {
2442 ost = &output_streams[i];
2444 if (ost->st->stream_copy)
2445 av_freep(&ost->st->codec->extradata);
2447 fclose(ost->logfile);
2448 ost->logfile = NULL;
2450 av_fifo_free(ost->fifo); /* works even if fifo is not
2451 initialized but set to zero */
2452 av_freep(&ost->st->codec->subtitle_header);
2453 av_free(ost->pict_tmp.data[0]);
2454 av_free(ost->forced_kf_pts);
2455 if (ost->video_resample)
2456 sws_freeContext(ost->img_resample_ctx);
2458 audio_resample_close(ost->resample);
2459 if (ost->reformat_ctx)
2460 av_audio_convert_free(ost->reformat_ctx);
2461 av_dict_free(&ost->opts);
2468 static int opt_video_rc_override_string(const char *opt, const char *arg)
2470 video_rc_override_string = arg;
2474 static int opt_me_threshold(const char *opt, const char *arg)
2476 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2480 static int opt_verbose(const char *opt, const char *arg)
2482 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2486 static int opt_frame_rate(const char *opt, const char *arg)
2488 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2489 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2495 static int opt_frame_size(const char *opt, const char *arg)
2497 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2498 fprintf(stderr, "Incorrect frame size\n");
2499 return AVERROR(EINVAL);
2504 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2506 if (strcmp(arg, "list")) {
2507 frame_pix_fmt = av_get_pix_fmt(arg);
2508 if (frame_pix_fmt == PIX_FMT_NONE) {
2509 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2510 return AVERROR(EINVAL);
2519 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2526 p = strchr(arg, ':');
2528 x = strtol(arg, &end, 10);
2530 y = strtol(end+1, &end, 10);
2532 ar = (double)x / (double)y;
2534 ar = strtod(arg, NULL);
2537 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2538 return AVERROR(EINVAL);
2540 frame_aspect_ratio = ar;
2544 static int opt_metadata(const char *opt, const char *arg)
2546 char *mid= strchr(arg, '=');
2549 fprintf(stderr, "Missing =\n");
2554 av_dict_set(&metadata, arg, mid, 0);
2559 static int opt_qscale(const char *opt, const char *arg)
2561 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2562 if (video_qscale == 0) {
2563 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2564 return AVERROR(EINVAL);
2569 static int opt_top_field_first(const char *opt, const char *arg)
2571 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2575 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2577 if (strcmp(arg, "list")) {
2578 audio_sample_fmt = av_get_sample_fmt(arg);
2579 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2580 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2581 return AVERROR(EINVAL);
2586 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2587 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2593 static int opt_audio_rate(const char *opt, const char *arg)
2595 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2599 static int opt_audio_channels(const char *opt, const char *arg)
2601 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2605 static int opt_codec(const char *opt, const char *arg)
2607 return av_dict_set(&codec_names, opt, arg, 0);
2610 static int opt_audio_codec(const char *opt, const char *arg)
2612 return opt_codec("codec:a", arg);
2615 static int opt_video_codec(const char *opt, const char *arg)
2617 return opt_codec("codec:v", arg);
2620 static int opt_subtitle_codec(const char *opt, const char *arg)
2622 return opt_codec("codec:s", arg);
2625 static int opt_data_codec(const char *opt, const char *arg)
2627 return opt_codec("codec:d", arg);
2630 static int opt_codec_tag(const char *opt, const char *arg)
2633 uint32_t *codec_tag;
2635 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2636 !strcmp(opt, "vtag") ? &video_codec_tag :
2637 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2641 *codec_tag = strtol(arg, &tail, 0);
2643 *codec_tag = AV_RL32(arg);
2648 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2650 StreamMap *m = NULL;
2651 int i, negative = 0, file_idx;
2652 int sync_file_idx = -1, sync_stream_idx;
2660 map = av_strdup(arg);
2662 /* parse sync stream first, just pick first matching stream */
2663 if (sync = strchr(map, ',')) {
2665 sync_file_idx = strtol(sync + 1, &sync, 0);
2666 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2667 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2672 for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2673 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2674 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2675 sync_stream_idx = i;
2678 if (i == input_files[sync_file_idx].nb_streams) {
2679 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2680 "match any streams.\n", arg);
2686 file_idx = strtol(map, &p, 0);
2687 if (file_idx >= nb_input_files || file_idx < 0) {
2688 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2692 /* disable some already defined maps */
2693 for (i = 0; i < o->nb_stream_maps; i++) {
2694 m = &o->stream_maps[i];
2695 if (check_stream_specifier(input_files[m->file_index].ctx,
2696 input_files[m->file_index].ctx->streams[m->stream_index],
2697 *p == ':' ? p + 1 : p) > 0)
2701 for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2702 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2703 *p == ':' ? p + 1 : p) <= 0)
2705 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2706 &o->nb_stream_maps, o->nb_stream_maps + 1);
2707 m = &o->stream_maps[o->nb_stream_maps - 1];
2709 m->file_index = file_idx;
2710 m->stream_index = i;
2712 if (sync_file_idx >= 0) {
2713 m->sync_file_index = sync_file_idx;
2714 m->sync_stream_index = sync_stream_idx;
2716 m->sync_file_index = file_idx;
2717 m->sync_stream_index = i;
2722 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2730 static void parse_meta_type(char *arg, char *type, int *index)
2740 if (*(++arg) == ':')
2741 *index = strtol(++arg, NULL, 0);
2744 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2751 static int opt_map_metadata(const char *opt, const char *arg)
2753 MetadataMap *m, *m1;
2756 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2757 &nb_meta_data_maps, nb_meta_data_maps + 1);
2759 m = &meta_data_maps[nb_meta_data_maps - 1][1];
2760 m->file = strtol(arg, &p, 0);
2761 parse_meta_type(p, &m->type, &m->index);
2763 m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2764 if (p = strchr(opt, ':'))
2765 parse_meta_type(p, &m1->type, &m1->index);
2769 if (m->type == 'g' || m1->type == 'g')
2770 metadata_global_autocopy = 0;
2771 if (m->type == 's' || m1->type == 's')
2772 metadata_streams_autocopy = 0;
2773 if (m->type == 'c' || m1->type == 'c')
2774 metadata_chapters_autocopy = 0;
2779 static int opt_input_ts_scale(const char *opt, const char *arg)
2781 return av_dict_set(&ts_scale, opt, arg, 0);
2784 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2786 const char *codec_string = encoder ? "encoder" : "decoder";
2790 return CODEC_ID_NONE;
2792 avcodec_find_encoder_by_name(name) :
2793 avcodec_find_decoder_by_name(name);
2795 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2798 if(codec->type != type) {
2799 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2805 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2807 AVDictionaryEntry *e = NULL;
2808 char *codec_name = NULL;
2811 while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2812 char *p = strchr(e->key, ':');
2814 if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2815 codec_name = e->value;
2822 st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2823 return avcodec_find_encoder(st->codec->codec_id);
2825 } else if (!strcmp(codec_name, "copy"))
2826 st->stream_copy = 1;
2828 st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2829 return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2830 avcodec_find_decoder_by_name(codec_name);
2837 * Add all the streams from the given input file to the global
2838 * list of input streams.
2840 static void add_input_streams(AVFormatContext *ic)
2842 int i, rfps, rfps_base, ret;
2844 for (i = 0; i < ic->nb_streams; i++) {
2845 AVStream *st = ic->streams[i];
2846 AVCodecContext *dec = st->codec;
2847 AVDictionaryEntry *e = NULL;
2851 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2852 ist = &input_streams[nb_input_streams - 1];
2854 ist->file_index = nb_input_files;
2856 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2858 while (e = av_dict_get(ts_scale, "", e, AV_DICT_IGNORE_SUFFIX)) {
2859 char *p = strchr(e->key, ':');
2861 if ((ret = check_stream_specifier(ic, st, p ? p + 1 : "")) > 0)
2867 ist->ts_scale = strtod(scale, NULL);
2869 ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2871 ist->dec = avcodec_find_decoder(dec->codec_id);
2873 switch (dec->codec_type) {
2874 case AVMEDIA_TYPE_AUDIO:
2876 st->discard= AVDISCARD_ALL;
2878 case AVMEDIA_TYPE_VIDEO:
2879 rfps = ic->streams[i]->r_frame_rate.num;
2880 rfps_base = ic->streams[i]->r_frame_rate.den;
2882 dec->flags |= CODEC_FLAG_EMU_EDGE;
2883 dec->height >>= dec->lowres;
2884 dec->width >>= dec->lowres;
2887 dec->debug |= FF_DEBUG_MV;
2889 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2892 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2893 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2895 (float)rfps / rfps_base, rfps, rfps_base);
2899 st->discard= AVDISCARD_ALL;
2900 else if(video_discard)
2901 st->discard= video_discard;
2903 case AVMEDIA_TYPE_DATA:
2905 case AVMEDIA_TYPE_SUBTITLE:
2906 if(subtitle_disable)
2907 st->discard = AVDISCARD_ALL;
2909 case AVMEDIA_TYPE_ATTACHMENT:
2910 case AVMEDIA_TYPE_UNKNOWN:
2918 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
2920 AVFormatContext *ic;
2921 AVInputFormat *file_iformat = NULL;
2925 AVDictionary **opts;
2926 int orig_nb_streams; // number of streams before avformat_find_stream_info
2929 if (!(file_iformat = av_find_input_format(o->format))) {
2930 fprintf(stderr, "Unknown input format: '%s'\n", o->format);
2935 if (!strcmp(filename, "-"))
2938 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2939 !strcmp(filename, "/dev/stdin");
2941 /* get default parameters from command line */
2942 ic = avformat_alloc_context();
2944 print_error(filename, AVERROR(ENOMEM));
2947 if (audio_sample_rate) {
2948 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2949 av_dict_set(&format_opts, "sample_rate", buf, 0);
2951 if (audio_channels) {
2952 snprintf(buf, sizeof(buf), "%d", audio_channels);
2953 av_dict_set(&format_opts, "channels", buf, 0);
2955 if (frame_rate.num) {
2956 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
2957 av_dict_set(&format_opts, "framerate", buf, 0);
2959 if (frame_width && frame_height) {
2960 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
2961 av_dict_set(&format_opts, "video_size", buf, 0);
2963 if (frame_pix_fmt != PIX_FMT_NONE)
2964 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
2966 ic->flags |= AVFMT_FLAG_NONBLOCK;
2968 /* open the input file with generic libav function */
2969 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2971 print_error(filename, err);
2974 assert_avoptions(format_opts);
2979 for(i=0; i<ic->nb_streams; i++){
2980 ic->streams[i]->discard= AVDISCARD_ALL;
2982 for(i=0; i<ic->nb_programs; i++){
2983 AVProgram *p= ic->programs[i];
2984 if(p->id != opt_programid){
2985 p->discard = AVDISCARD_ALL;
2988 for(j=0; j<p->nb_stream_indexes; j++){
2989 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
2994 fprintf(stderr, "Specified program id not found\n");
3000 /* apply forced codec ids */
3001 for (i = 0; i < ic->nb_streams; i++)
3002 choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3004 /* Set AVCodecContext options for avformat_find_stream_info */
3005 opts = setup_find_stream_info_opts(ic, codec_opts);
3006 orig_nb_streams = ic->nb_streams;
3008 /* If not enough info to get the stream parameters, we decode the
3009 first frames to get it. (used in mpeg case for example) */
3010 ret = avformat_find_stream_info(ic, opts);
3011 if (ret < 0 && verbose >= 0) {
3012 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3013 av_close_input_file(ic);
3017 timestamp = o->start_time;
3018 /* add the stream start time */
3019 if (ic->start_time != AV_NOPTS_VALUE)
3020 timestamp += ic->start_time;
3022 /* if seeking requested, we execute it */
3023 if (o->start_time != 0) {
3024 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3026 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3027 filename, (double)timestamp / AV_TIME_BASE);
3031 /* update the current parameters so that they match the one of the input stream */
3032 add_input_streams(ic);
3034 /* dump the file content */
3036 av_dump_format(ic, nb_input_files, filename, 0);
3038 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3039 input_files[nb_input_files - 1].ctx = ic;
3040 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3041 input_files[nb_input_files - 1].ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3042 input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3044 frame_rate = (AVRational){0, 0};
3045 frame_pix_fmt = PIX_FMT_NONE;
3048 audio_sample_rate = 0;
3050 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3051 av_dict_free(&ts_scale);
3053 for (i = 0; i < orig_nb_streams; i++)
3054 av_dict_free(&opts[i]);
3056 av_dict_free(&codec_names);
3062 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3063 AVCodecContext *avctx)
3069 for (p = kf; *p; p++)
3072 ost->forced_kf_count = n;
3073 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3074 if (!ost->forced_kf_pts) {
3075 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3078 for (i = 0; i < n; i++) {
3079 p = i ? strchr(p, ',') + 1 : kf;
3080 t = parse_time_or_die("force_key_frames", p, 1);
3081 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3085 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3088 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3089 int idx = oc->nb_streams - 1;
3092 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3096 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3097 nb_output_streams + 1);
3098 ost = &output_streams[nb_output_streams - 1];
3099 ost->file_index = nb_output_files;
3102 st->codec->codec_type = type;
3103 ost->enc = choose_codec(oc, st, type, codec_names);
3105 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3108 avcodec_get_context_defaults3(st->codec, ost->enc);
3109 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3111 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3115 static OutputStream *new_video_stream(AVFormatContext *oc)
3119 AVCodecContext *video_enc;
3121 ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3123 if (!st->stream_copy) {
3124 ost->frame_aspect_ratio = frame_aspect_ratio;
3125 frame_aspect_ratio = 0;
3127 ost->avfilter= vfilters;
3132 ost->bitstream_filters = video_bitstream_filters;
3133 video_bitstream_filters= NULL;
3135 video_enc = st->codec;
3138 video_enc->codec_tag= video_codec_tag;
3140 if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3141 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3144 if (st->stream_copy) {
3145 video_enc->sample_aspect_ratio =
3146 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3152 ost->frame_rate = frame_rate;
3154 video_enc->width = frame_width;
3155 video_enc->height = frame_height;
3156 video_enc->pix_fmt = frame_pix_fmt;
3157 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3159 if (video_qscale || same_quant) {
3160 video_enc->flags |= CODEC_FLAG_QSCALE;
3161 video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3165 video_enc->intra_matrix = intra_matrix;
3167 video_enc->inter_matrix = inter_matrix;
3169 p= video_rc_override_string;
3172 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3174 fprintf(stderr, "error parsing rc_override\n");
3177 video_enc->rc_override=
3178 av_realloc(video_enc->rc_override,
3179 sizeof(RcOverride)*(i+1));
3180 video_enc->rc_override[i].start_frame= start;
3181 video_enc->rc_override[i].end_frame = end;
3183 video_enc->rc_override[i].qscale= q;
3184 video_enc->rc_override[i].quality_factor= 1.0;
3187 video_enc->rc_override[i].qscale= 0;
3188 video_enc->rc_override[i].quality_factor= -q/100.0;
3193 video_enc->rc_override_count=i;
3194 if (!video_enc->rc_initial_buffer_occupancy)
3195 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3196 video_enc->me_threshold= me_threshold;
3197 video_enc->intra_dc_precision= intra_dc_precision - 8;
3200 video_enc->flags|= CODEC_FLAG_PSNR;
3205 video_enc->flags |= CODEC_FLAG_PASS1;
3207 video_enc->flags |= CODEC_FLAG_PASS2;
3211 if (forced_key_frames)
3212 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3214 if (video_language) {
3215 av_dict_set(&st->metadata, "language", video_language, 0);
3216 av_freep(&video_language);
3219 /* reset some key parameters */
3221 av_freep(&forced_key_frames);
3222 frame_pix_fmt = PIX_FMT_NONE;
3226 static OutputStream *new_audio_stream(AVFormatContext *oc)
3230 AVCodecContext *audio_enc;
3232 ost = new_output_stream(oc, AVMEDIA_TYPE_AUDIO);
3235 ost->bitstream_filters = audio_bitstream_filters;
3236 audio_bitstream_filters= NULL;
3238 audio_enc = st->codec;
3239 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3242 audio_enc->codec_tag= audio_codec_tag;
3244 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3245 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3247 if (!st->stream_copy) {
3248 if (audio_qscale > QSCALE_NONE) {
3249 audio_enc->flags |= CODEC_FLAG_QSCALE;
3250 audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3253 audio_enc->channels = audio_channels;
3254 if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3255 audio_enc->sample_fmt = audio_sample_fmt;
3256 if (audio_sample_rate)
3257 audio_enc->sample_rate = audio_sample_rate;
3259 if (audio_language) {
3260 av_dict_set(&st->metadata, "language", audio_language, 0);
3261 av_freep(&audio_language);
3264 /* reset some key parameters */
3270 static OutputStream *new_data_stream(AVFormatContext *oc)
3274 AVCodecContext *data_enc;
3276 ost = new_output_stream(oc, AVMEDIA_TYPE_DATA);
3278 data_enc = st->codec;
3279 if (!st->stream_copy) {
3280 fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3285 data_enc->codec_tag= data_codec_tag;
3287 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3288 data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3295 static OutputStream *new_subtitle_stream(AVFormatContext *oc)
3299 AVCodecContext *subtitle_enc;
3301 ost = new_output_stream(oc, AVMEDIA_TYPE_SUBTITLE);
3303 subtitle_enc = st->codec;
3305 ost->bitstream_filters = subtitle_bitstream_filters;
3306 subtitle_bitstream_filters= NULL;
3308 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3310 if(subtitle_codec_tag)
3311 subtitle_enc->codec_tag= subtitle_codec_tag;
3313 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3314 subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3317 if (subtitle_language) {
3318 av_dict_set(&st->metadata, "language", subtitle_language, 0);
3319 av_freep(&subtitle_language);
3322 subtitle_disable = 0;
3326 /* arg format is "output-stream-index:streamid-value". */
3327 static int opt_streamid(const char *opt, const char *arg)
3333 av_strlcpy(idx_str, arg, sizeof(idx_str));
3334 p = strchr(idx_str, ':');
3337 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3342 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3343 streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3344 streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3348 static int copy_chapters(InputFile *ifile, OutputFile *ofile)
3350 AVFormatContext *is = ifile->ctx;
3351 AVFormatContext *os = ofile->ctx;
3354 for (i = 0; i < is->nb_chapters; i++) {
3355 AVChapter *in_ch = is->chapters[i], *out_ch;
3356 int64_t ts_off = av_rescale_q(ofile->start_time - ifile->ts_offset,
3357 AV_TIME_BASE_Q, in_ch->time_base);
3358 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
3359 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3362 if (in_ch->end < ts_off)
3364 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3367 out_ch = av_mallocz(sizeof(AVChapter));
3369 return AVERROR(ENOMEM);
3371 out_ch->id = in_ch->id;
3372 out_ch->time_base = in_ch->time_base;
3373 out_ch->start = FFMAX(0, in_ch->start - ts_off);
3374 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
3376 if (metadata_chapters_autocopy)
3377 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3380 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3382 return AVERROR(ENOMEM);
3383 os->chapters[os->nb_chapters - 1] = out_ch;
3388 static int read_avserver_streams(AVFormatContext *s, const char *filename)
3391 AVFormatContext *ic = NULL;
3393 err = avformat_open_input(&ic, filename, NULL, NULL);
3396 /* copy stream format */
3397 for(i=0;i<ic->nb_streams;i++) {
3402 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3403 ost = new_output_stream(s, codec->type);
3406 // FIXME: a more elegant solution is needed
3407 memcpy(st, ic->streams[i], sizeof(AVStream));
3409 avcodec_copy_context(st->codec, ic->streams[i]->codec);
3411 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3412 choose_sample_fmt(st, codec);
3413 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3414 choose_pixel_fmt(st, codec);
3417 av_close_input_file(ic);
3421 static void opt_output_file(void *optctx, const char *filename)
3423 OptionsContext *o = optctx;
3424 AVFormatContext *oc;
3426 AVOutputFormat *file_oformat;
3430 if (!strcmp(filename, "-"))
3433 oc = avformat_alloc_context();
3435 print_error(filename, AVERROR(ENOMEM));
3440 file_oformat = av_guess_format(o->format, NULL, NULL);
3441 if (!file_oformat) {
3442 fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", o->format);
3446 file_oformat = av_guess_format(NULL, filename, NULL);
3447 if (!file_oformat) {
3448 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3454 oc->oformat = file_oformat;
3455 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3457 if (!strcmp(file_oformat->name, "ffm") &&
3458 av_strstart(filename, "http:", NULL)) {
3459 /* special case for files sent to avserver: we get the stream
3460 parameters from avserver */
3461 int err = read_avserver_streams(oc, filename);
3463 print_error(filename, err);
3466 } else if (!o->nb_stream_maps) {
3467 /* pick the "best" stream of each type */
3468 #define NEW_STREAM(type, index)\
3470 ost = new_ ## type ## _stream(oc);\
3471 ost->source_index = index;\
3472 ost->sync_ist = &input_streams[index];\
3473 input_streams[index].discard = 0;\
3476 /* video: highest resolution */
3477 if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3478 int area = 0, idx = -1;
3479 for (i = 0; i < nb_input_streams; i++) {
3480 ist = &input_streams[i];
3481 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3482 ist->st->codec->width * ist->st->codec->height > area) {
3483 area = ist->st->codec->width * ist->st->codec->height;
3487 NEW_STREAM(video, idx);
3490 /* audio: most channels */
3491 if (!audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3492 int channels = 0, idx = -1;
3493 for (i = 0; i < nb_input_streams; i++) {
3494 ist = &input_streams[i];
3495 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3496 ist->st->codec->channels > channels) {
3497 channels = ist->st->codec->channels;
3501 NEW_STREAM(audio, idx);
3504 /* subtitles: pick first */
3505 if (!subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3506 for (i = 0; i < nb_input_streams; i++)
3507 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3508 NEW_STREAM(subtitle, i);
3512 /* do something with data? */
3514 for (i = 0; i < o->nb_stream_maps; i++) {
3515 StreamMap *map = &o->stream_maps[i];
3520 ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3521 switch (ist->st->codec->codec_type) {
3522 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(oc); break;
3523 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(oc); break;
3524 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(oc); break;
3525 case AVMEDIA_TYPE_DATA: ost = new_data_stream(oc); break;
3527 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3528 map->file_index, map->stream_index);
3532 ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3533 ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3534 map->sync_stream_index];
3539 av_dict_copy(&oc->metadata, metadata, 0);
3540 av_dict_free(&metadata);
3543 output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
3544 output_files[nb_output_files - 1].ctx = oc;
3545 output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
3546 output_files[nb_output_files - 1].recording_time = o->recording_time;
3547 output_files[nb_output_files - 1].start_time = o->start_time;
3548 output_files[nb_output_files - 1].limit_filesize = o->limit_filesize;
3549 av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
3551 /* check filename in case of an image number is expected */
3552 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3553 if (!av_filename_number_test(oc->filename)) {
3554 print_error(oc->filename, AVERROR(EINVAL));
3559 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3560 /* test if it already exists to avoid loosing precious files */
3561 if (!file_overwrite &&
3562 (strchr(filename, ':') == NULL ||
3563 filename[1] == ':' ||
3564 av_strstart(filename, "file:", NULL))) {
3565 if (avio_check(filename, 0) == 0) {
3567 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3569 if (!read_yesno()) {
3570 fprintf(stderr, "Not overwriting - exiting\n");
3575 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3582 if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
3583 print_error(filename, err);
3588 oc->preload= (int)(mux_preload*AV_TIME_BASE);
3589 oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3590 oc->flags |= AVFMT_FLAG_NONBLOCK;
3593 if (chapters_input_file >= nb_input_files) {
3594 if (chapters_input_file == INT_MAX) {
3595 /* copy chapters from the first input file that has them*/
3596 chapters_input_file = -1;
3597 for (i = 0; i < nb_input_files; i++)
3598 if (input_files[i].ctx->nb_chapters) {
3599 chapters_input_file = i;
3603 av_log(NULL, AV_LOG_ERROR, "Invalid input file index %d in chapter mapping.\n",
3604 chapters_input_file);
3608 if (chapters_input_file >= 0)
3609 copy_chapters(&input_files[chapters_input_file], &output_files[nb_output_files - 1]);
3612 for (i = 0; i < nb_meta_data_maps; i++) {
3613 AVFormatContext *files[2];
3614 AVDictionary **meta[2];
3617 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3618 if ((index) < 0 || (index) >= (nb_elems)) {\
3619 av_log(NULL, AV_LOG_ERROR, "Invalid %s index %d while processing metadata maps\n",\
3624 int in_file_index = meta_data_maps[i][1].file;
3625 if (in_file_index < 0)
3627 METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
3630 files[1] = input_files[in_file_index].ctx;
3632 for (j = 0; j < 2; j++) {
3633 MetadataMap *map = &meta_data_maps[i][j];
3635 switch (map->type) {
3637 meta[j] = &files[j]->metadata;
3640 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
3641 meta[j] = &files[j]->streams[map->index]->metadata;
3644 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
3645 meta[j] = &files[j]->chapters[map->index]->metadata;
3648 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
3649 meta[j] = &files[j]->programs[map->index]->metadata;
3654 av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
3657 /* copy global metadata by default */
3658 if (metadata_global_autocopy && nb_input_files)
3659 av_dict_copy(&oc->metadata, input_files[0].ctx->metadata,
3660 AV_DICT_DONT_OVERWRITE);
3661 if (metadata_streams_autocopy)
3662 for (i = output_files[nb_output_files - 1].ost_index; i < nb_output_streams; i++) {
3663 InputStream *ist = &input_streams[output_streams[i].source_index];
3664 av_dict_copy(&output_streams[i].st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
3667 frame_rate = (AVRational){0, 0};
3670 audio_sample_rate = 0;
3672 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3673 chapters_input_file = INT_MAX;