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 const char *last_asked_format = NULL;
101 static AVDictionary *ts_scale;
103 static StreamMap *stream_maps = NULL;
104 static int nb_stream_maps;
106 static AVDictionary *codec_names;
108 /* first item specifies output metadata, second is input */
109 static MetadataMap (*meta_data_maps)[2] = NULL;
110 static int nb_meta_data_maps;
111 static int metadata_global_autocopy = 1;
112 static int metadata_streams_autocopy = 1;
113 static int metadata_chapters_autocopy = 1;
115 static int chapters_input_file = INT_MAX;
117 /* indexed by output file stream index */
118 static int *streamid_map = NULL;
119 static int nb_streamid_map = 0;
121 static int frame_width = 0;
122 static int frame_height = 0;
123 static float frame_aspect_ratio = 0;
124 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
125 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
126 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
127 static AVRational frame_rate;
128 static float video_qscale = 0;
129 static uint16_t *intra_matrix = NULL;
130 static uint16_t *inter_matrix = NULL;
131 static const char *video_rc_override_string=NULL;
132 static int video_disable = 0;
133 static int video_discard = 0;
134 static unsigned int video_codec_tag = 0;
135 static char *video_language = NULL;
136 static int same_quant = 0;
137 static int do_deinterlace = 0;
138 static int top_field_first = -1;
139 static int me_threshold = 0;
140 static int intra_dc_precision = 8;
141 static int qp_hist = 0;
143 static char *vfilters = NULL;
146 static int intra_only = 0;
147 static int audio_sample_rate = 0;
148 #define QSCALE_NONE -99999
149 static float audio_qscale = QSCALE_NONE;
150 static int audio_disable = 0;
151 static int audio_channels = 0;
152 static unsigned int audio_codec_tag = 0;
153 static char *audio_language = NULL;
155 static int subtitle_disable = 0;
156 static char *subtitle_language = NULL;
157 static unsigned int subtitle_codec_tag = 0;
159 static int data_disable = 0;
160 static unsigned int data_codec_tag = 0;
162 static float mux_preload= 0.5;
163 static float mux_max_delay= 0.7;
165 static int64_t recording_time = INT64_MAX;
166 static int64_t start_time = 0;
167 static int64_t input_ts_offset = 0;
168 static int file_overwrite = 0;
169 static AVDictionary *metadata;
170 static int do_benchmark = 0;
171 static int do_hex_dump = 0;
172 static int do_pkt_dump = 0;
173 static int do_psnr = 0;
174 static int do_pass = 0;
175 static char *pass_logfilename_prefix = NULL;
176 static int video_sync_method= -1;
177 static int audio_sync_method= 0;
178 static float audio_drift_threshold= 0.1;
179 static int copy_ts= 0;
181 static int opt_shortest = 0;
182 static char *vstats_filename;
183 static FILE *vstats_file;
184 static int opt_programid = 0;
185 static int copy_initial_nonkeyframes = 0;
187 static int rate_emu = 0;
189 static int audio_volume = 256;
191 static int exit_on_error = 0;
192 static int using_stdin = 0;
193 static int verbose = 1;
194 static int thread_count= 1;
195 static int64_t video_size = 0;
196 static int64_t audio_size = 0;
197 static int64_t extra_size = 0;
198 static int nb_frames_dup = 0;
199 static int nb_frames_drop = 0;
200 static int input_sync;
201 static uint64_t limit_filesize = 0;
202 static int force_fps = 0;
203 static char *forced_key_frames = NULL;
205 static float dts_delta_threshold = 10;
207 static int64_t timer_start;
209 static uint8_t *audio_buf;
210 static uint8_t *audio_out;
211 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
213 static short *samples;
215 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
216 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
217 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
219 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
223 typedef struct OutputStream {
224 int file_index; /* file index */
225 int index; /* stream index in the output file */
226 int source_index; /* InputStream index */
227 AVStream *st; /* stream in the output file */
228 int encoding_needed; /* true if encoding needed for this stream */
230 /* input pts and corresponding output pts
232 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
233 struct InputStream *sync_ist; /* input stream to sync against */
234 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
235 AVBitStreamFilterContext *bitstream_filters;
240 AVFrame pict_tmp; /* temporary image for resampling */
241 struct SwsContext *img_resample_ctx; /* for image resampling */
244 int resample_pix_fmt;
245 AVRational frame_rate;
247 float frame_aspect_ratio;
249 /* forced key frames */
250 int64_t *forced_kf_pts;
256 ReSampleContext *resample; /* for audio resampling */
257 int resample_sample_fmt;
258 int resample_channels;
259 int resample_sample_rate;
261 AVAudioConvert *reformat_ctx;
262 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
266 AVFilterContext *output_video_filter;
267 AVFilterContext *input_video_filter;
268 AVFilterBufferRef *picref;
270 AVFilterGraph *graph;
277 typedef struct InputStream {
280 int discard; /* true if stream data should be discarded */
281 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
284 int64_t start; /* time when read started */
285 int64_t next_pts; /* synthetic pts for cases where pkt.pts
287 int64_t pts; /* current pts */
288 PtsCorrectionContext pts_ctx;
290 int is_start; /* is 1 at the start and after a discontinuity */
291 int showed_multi_packet_warning;
292 int is_past_recording_time;
296 typedef struct InputFile {
297 AVFormatContext *ctx;
298 int eof_reached; /* true if eof reached */
299 int ist_index; /* index of first stream in ist_table */
300 int buffer_size; /* current total buffer size */
304 typedef struct OutputFile {
305 AVFormatContext *ctx;
307 int ost_index; /* index of the first stream in output_streams */
310 static InputStream *input_streams = NULL;
311 static int nb_input_streams = 0;
312 static InputFile *input_files = NULL;
313 static int nb_input_files = 0;
315 static OutputStream *output_streams = NULL;
316 static int nb_output_streams = 0;
317 static OutputFile *output_files = NULL;
318 static int nb_output_files = 0;
322 static int configure_video_filters(InputStream *ist, OutputStream *ost)
324 AVFilterContext *last_filter, *filter;
325 /** filter graph containing all filters including input & output */
326 AVCodecContext *codec = ost->st->codec;
327 AVCodecContext *icodec = ist->st->codec;
328 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
329 AVRational sample_aspect_ratio;
333 ost->graph = avfilter_graph_alloc();
335 if (ist->st->sample_aspect_ratio.num){
336 sample_aspect_ratio = ist->st->sample_aspect_ratio;
338 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
340 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
341 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
342 sample_aspect_ratio.num, sample_aspect_ratio.den);
344 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
345 "src", args, NULL, ost->graph);
348 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
349 "out", NULL, &ffsink_ctx, ost->graph);
352 last_filter = ost->input_video_filter;
354 if (codec->width != icodec->width || codec->height != icodec->height) {
355 snprintf(args, 255, "%d:%d:flags=0x%X",
359 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
360 NULL, args, NULL, ost->graph)) < 0)
362 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
364 last_filter = filter;
367 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
368 ost->graph->scale_sws_opts = av_strdup(args);
371 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
372 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
374 outputs->name = av_strdup("in");
375 outputs->filter_ctx = last_filter;
376 outputs->pad_idx = 0;
377 outputs->next = NULL;
379 inputs->name = av_strdup("out");
380 inputs->filter_ctx = ost->output_video_filter;
384 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
386 av_freep(&ost->avfilter);
388 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
392 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
395 codec->width = ost->output_video_filter->inputs[0]->w;
396 codec->height = ost->output_video_filter->inputs[0]->h;
397 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
398 ost->frame_aspect_ratio ? // overriden by the -aspect cli option
399 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
400 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
404 #endif /* CONFIG_AVFILTER */
406 static void term_exit(void)
408 av_log(NULL, AV_LOG_QUIET, "");
411 static volatile int received_sigterm = 0;
412 static volatile int received_nb_signals = 0;
415 sigterm_handler(int sig)
417 received_sigterm = sig;
418 received_nb_signals++;
422 static void term_init(void)
424 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
425 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
427 signal(SIGXCPU, sigterm_handler);
431 static int decode_interrupt_cb(void)
433 return received_nb_signals > 1;
436 static int exit_program(int ret)
441 for(i=0;i<nb_output_files;i++) {
442 AVFormatContext *s = output_files[i].ctx;
443 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
445 avformat_free_context(s);
446 av_dict_free(&output_files[i].opts);
448 for(i=0;i<nb_input_files;i++) {
449 av_close_input_file(input_files[i].ctx);
451 for (i = 0; i < nb_input_streams; i++)
452 av_dict_free(&input_streams[i].opts);
454 av_free(intra_matrix);
455 av_free(inter_matrix);
459 av_free(vstats_filename);
461 av_free(streamid_map);
462 av_free(meta_data_maps);
464 av_freep(&input_streams);
465 av_freep(&input_files);
466 av_freep(&output_streams);
467 av_freep(&output_files);
472 allocated_audio_buf_size= allocated_audio_out_size= 0;
479 if (received_sigterm) {
481 "Received signal %d: terminating.\n",
482 (int) received_sigterm);
486 exit(ret); /* not all OS-es handle main() return value */
490 static void assert_avoptions(AVDictionary *m)
492 AVDictionaryEntry *t;
493 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
494 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
499 static void assert_codec_experimental(AVCodecContext *c, int encoder)
501 const char *codec_string = encoder ? "encoder" : "decoder";
503 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
504 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
505 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
506 "results.\nAdd '-strict experimental' if you want to use it.\n",
507 codec_string, c->codec->name);
508 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
509 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
510 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
511 codec_string, codec->name);
516 /* similar to ff_dynarray_add() and av_fast_realloc() */
517 static void *grow_array(void *array, int elem_size, int *size, int new_size)
519 if (new_size >= INT_MAX / elem_size) {
520 fprintf(stderr, "Array too big.\n");
523 if (*size < new_size) {
524 uint8_t *tmp = av_realloc(array, new_size*elem_size);
526 fprintf(stderr, "Could not alloc buffer.\n");
529 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
536 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
538 if(codec && codec->sample_fmts){
539 const enum AVSampleFormat *p= codec->sample_fmts;
541 if(*p == st->codec->sample_fmt)
545 av_log(NULL, AV_LOG_WARNING,
546 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
547 av_get_sample_fmt_name(st->codec->sample_fmt),
549 av_get_sample_fmt_name(codec->sample_fmts[0]));
550 st->codec->sample_fmt = codec->sample_fmts[0];
556 * Update the requested input sample format based on the output sample format.
557 * This is currently only used to request float output from decoders which
558 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
559 * Ideally this will be removed in the future when decoders do not do format
560 * conversion and only output in their native format.
562 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
565 /* if sample formats match or a decoder sample format has already been
566 requested, just return */
567 if (enc->sample_fmt == dec->sample_fmt ||
568 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
571 /* if decoder supports more than one output format */
572 if (dec_codec && dec_codec->sample_fmts &&
573 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
574 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
575 const enum AVSampleFormat *p;
576 int min_dec = -1, min_inc = -1;
578 /* find a matching sample format in the encoder */
579 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
580 if (*p == enc->sample_fmt) {
581 dec->request_sample_fmt = *p;
583 } else if (*p > enc->sample_fmt) {
584 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
586 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
589 /* if none match, provide the one that matches quality closest */
590 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
591 enc->sample_fmt - min_dec;
595 static void choose_sample_rate(AVStream *st, AVCodec *codec)
597 if(codec && codec->supported_samplerates){
598 const int *p= codec->supported_samplerates;
600 int best_dist=INT_MAX;
602 int dist= abs(st->codec->sample_rate - *p);
603 if(dist < best_dist){
609 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
611 st->codec->sample_rate= best;
615 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
617 if(codec && codec->pix_fmts){
618 const enum PixelFormat *p= codec->pix_fmts;
619 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
620 if(st->codec->codec_id==CODEC_ID_MJPEG){
621 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
622 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
623 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};
627 if(*p == st->codec->pix_fmt)
631 if(st->codec->pix_fmt != PIX_FMT_NONE)
632 av_log(NULL, AV_LOG_WARNING,
633 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
634 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
636 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
637 st->codec->pix_fmt = codec->pix_fmts[0];
643 get_sync_ipts(const OutputStream *ost)
645 const InputStream *ist = ost->sync_ist;
646 return (double)(ist->pts - start_time)/AV_TIME_BASE;
649 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
653 AVPacket new_pkt= *pkt;
654 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
655 &new_pkt.data, &new_pkt.size,
656 pkt->data, pkt->size,
657 pkt->flags & AV_PKT_FLAG_KEY);
660 new_pkt.destruct= av_destruct_packet;
662 fprintf(stderr, "%s failed for stream %d, codec %s",
663 bsfc->filter->name, pkt->stream_index,
664 avctx->codec ? avctx->codec->name : "copy");
674 ret= av_interleaved_write_frame(s, pkt);
676 print_error("av_interleaved_write_frame()", ret);
681 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
683 static void do_audio_out(AVFormatContext *s,
686 unsigned char *buf, int size)
689 int64_t audio_out_size, audio_buf_size;
690 int64_t allocated_for_size= size;
692 int size_out, frame_bytes, ret, resample_changed;
693 AVCodecContext *enc= ost->st->codec;
694 AVCodecContext *dec= ist->st->codec;
695 int osize = av_get_bytes_per_sample(enc->sample_fmt);
696 int isize = av_get_bytes_per_sample(dec->sample_fmt);
697 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
700 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
701 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
702 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
703 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
704 audio_buf_size*= osize*enc->channels;
706 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
707 if(coded_bps > 8*osize)
708 audio_out_size= audio_out_size * coded_bps / (8*osize);
709 audio_out_size += FF_MIN_BUFFER_SIZE;
711 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
712 fprintf(stderr, "Buffer sizes too large\n");
716 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
717 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
718 if (!audio_buf || !audio_out){
719 fprintf(stderr, "Out of memory in do_audio_out\n");
723 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
724 ost->audio_resample = 1;
726 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
727 ost->resample_channels != dec->channels ||
728 ost->resample_sample_rate != dec->sample_rate;
730 if ((ost->audio_resample && !ost->resample) || resample_changed) {
731 if (resample_changed) {
732 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",
733 ist->file_index, ist->st->index,
734 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
735 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
736 ost->resample_sample_fmt = dec->sample_fmt;
737 ost->resample_channels = dec->channels;
738 ost->resample_sample_rate = dec->sample_rate;
740 audio_resample_close(ost->resample);
742 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
743 if (audio_sync_method <= 1 &&
744 ost->resample_sample_fmt == enc->sample_fmt &&
745 ost->resample_channels == enc->channels &&
746 ost->resample_sample_rate == enc->sample_rate) {
747 ost->resample = NULL;
748 ost->audio_resample = 0;
749 } else if (ost->audio_resample) {
750 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
751 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
752 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
753 enc->sample_rate, dec->sample_rate,
754 enc->sample_fmt, dec->sample_fmt,
756 if (!ost->resample) {
757 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
758 dec->channels, dec->sample_rate,
759 enc->channels, enc->sample_rate);
765 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
766 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
767 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
768 if (ost->reformat_ctx)
769 av_audio_convert_free(ost->reformat_ctx);
770 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
771 dec->sample_fmt, 1, NULL, 0);
772 if (!ost->reformat_ctx) {
773 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
774 av_get_sample_fmt_name(dec->sample_fmt),
775 av_get_sample_fmt_name(enc->sample_fmt));
778 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
781 if(audio_sync_method){
782 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
783 - av_fifo_size(ost->fifo)/(enc->channels * 2);
784 double idelta= delta*dec->sample_rate / enc->sample_rate;
785 int byte_delta= ((int)idelta)*2*dec->channels;
787 //FIXME resample delay
788 if(fabs(delta) > 50){
789 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
791 byte_delta= FFMAX(byte_delta, -size);
795 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
800 static uint8_t *input_tmp= NULL;
801 input_tmp= av_realloc(input_tmp, byte_delta + size);
803 if(byte_delta > allocated_for_size - size){
804 allocated_for_size= byte_delta + (int64_t)size;
809 memset(input_tmp, 0, byte_delta);
810 memcpy(input_tmp + byte_delta, buf, size);
814 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
816 }else if(audio_sync_method>1){
817 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
818 av_assert0(ost->audio_resample);
820 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
821 // 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));
822 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
826 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
827 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
829 if (ost->audio_resample) {
831 size_out = audio_resample(ost->resample,
832 (short *)buftmp, (short *)buf,
833 size / (dec->channels * isize));
834 size_out = size_out * enc->channels * osize;
840 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
841 const void *ibuf[6]= {buftmp};
842 void *obuf[6]= {audio_buf};
843 int istride[6]= {isize};
844 int ostride[6]= {osize};
845 int len= size_out/istride[0];
846 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
847 printf("av_audio_convert() failed\n");
853 size_out = len*osize;
856 /* now encode as many frames as possible */
857 if (enc->frame_size > 1) {
858 /* output resampled raw samples */
859 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
860 fprintf(stderr, "av_fifo_realloc2() failed\n");
863 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
865 frame_bytes = enc->frame_size * osize * enc->channels;
867 while (av_fifo_size(ost->fifo) >= frame_bytes) {
869 av_init_packet(&pkt);
871 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
873 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
875 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
878 fprintf(stderr, "Audio encoding failed\n");
882 pkt.stream_index= ost->index;
885 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
886 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
887 pkt.flags |= AV_PKT_FLAG_KEY;
888 write_frame(s, &pkt, enc, ost->bitstream_filters);
890 ost->sync_opts += enc->frame_size;
894 av_init_packet(&pkt);
896 ost->sync_opts += size_out / (osize * enc->channels);
898 /* output a pcm frame */
899 /* determine the size of the coded buffer */
902 size_out = size_out*coded_bps/8;
904 if(size_out > audio_out_size){
905 fprintf(stderr, "Internal error, buffer size too small\n");
909 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
910 ret = avcodec_encode_audio(enc, audio_out, size_out,
913 fprintf(stderr, "Audio encoding failed\n");
917 pkt.stream_index= ost->index;
920 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
921 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
922 pkt.flags |= AV_PKT_FLAG_KEY;
923 write_frame(s, &pkt, enc, ost->bitstream_filters);
927 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
931 AVPicture picture_tmp;
934 dec = ist->st->codec;
936 /* deinterlace : must be done before any resize */
937 if (do_deinterlace) {
940 /* create temporary picture */
941 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
942 buf = av_malloc(size);
946 picture2 = &picture_tmp;
947 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
949 if(avpicture_deinterlace(picture2, picture,
950 dec->pix_fmt, dec->width, dec->height) < 0) {
951 /* if error, do not deinterlace */
952 fprintf(stderr, "Deinterlacing failed\n");
961 if (picture != picture2)
962 *picture = *picture2;
966 /* we begin to correct av delay at this threshold */
967 #define AV_DELAY_MAX 0.100
969 static void do_subtitle_out(AVFormatContext *s,
975 static uint8_t *subtitle_out = NULL;
976 int subtitle_out_max_size = 1024 * 1024;
977 int subtitle_out_size, nb, i;
981 if (pts == AV_NOPTS_VALUE) {
982 fprintf(stderr, "Subtitle packets must have a pts\n");
988 enc = ost->st->codec;
991 subtitle_out = av_malloc(subtitle_out_max_size);
994 /* Note: DVB subtitle need one packet to draw them and one other
995 packet to clear them */
996 /* XXX: signal it in the codec context ? */
997 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1002 for(i = 0; i < nb; i++) {
1003 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1004 // start_display_time is required to be 0
1005 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1006 sub->end_display_time -= sub->start_display_time;
1007 sub->start_display_time = 0;
1008 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1009 subtitle_out_max_size, sub);
1010 if (subtitle_out_size < 0) {
1011 fprintf(stderr, "Subtitle encoding failed\n");
1015 av_init_packet(&pkt);
1016 pkt.stream_index = ost->index;
1017 pkt.data = subtitle_out;
1018 pkt.size = subtitle_out_size;
1019 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1020 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1021 /* XXX: the pts correction is handled here. Maybe handling
1022 it in the codec would be better */
1024 pkt.pts += 90 * sub->start_display_time;
1026 pkt.pts += 90 * sub->end_display_time;
1028 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1032 static int bit_buffer_size= 1024*256;
1033 static uint8_t *bit_buffer= NULL;
1035 static void do_video_resample(OutputStream *ost,
1037 AVFrame *in_picture,
1038 AVFrame **out_picture)
1040 int resample_changed = 0;
1041 AVCodecContext *dec = ist->st->codec;
1042 *out_picture = in_picture;
1044 resample_changed = ost->resample_width != dec->width ||
1045 ost->resample_height != dec->height ||
1046 ost->resample_pix_fmt != dec->pix_fmt;
1048 if (resample_changed) {
1049 av_log(NULL, AV_LOG_INFO,
1050 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1051 ist->file_index, ist->st->index,
1052 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1053 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1054 if(!ost->video_resample)
1055 ost->video_resample = 1;
1058 #if !CONFIG_AVFILTER
1059 if (ost->video_resample) {
1060 *out_picture = &ost->pict_tmp;
1061 if (resample_changed) {
1062 /* initialize a new scaler context */
1063 sws_freeContext(ost->img_resample_ctx);
1064 ost->img_resample_ctx = sws_getContext(
1065 ist->st->codec->width,
1066 ist->st->codec->height,
1067 ist->st->codec->pix_fmt,
1068 ost->st->codec->width,
1069 ost->st->codec->height,
1070 ost->st->codec->pix_fmt,
1071 ost->sws_flags, NULL, NULL, NULL);
1072 if (ost->img_resample_ctx == NULL) {
1073 fprintf(stderr, "Cannot get resampling context\n");
1077 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1078 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1081 if (resample_changed) {
1082 avfilter_graph_free(&ost->graph);
1083 if (configure_video_filters(ist, ost)) {
1084 fprintf(stderr, "Error reinitialising filters!\n");
1089 if (resample_changed) {
1090 ost->resample_width = dec->width;
1091 ost->resample_height = dec->height;
1092 ost->resample_pix_fmt = dec->pix_fmt;
1097 static void do_video_out(AVFormatContext *s,
1100 AVFrame *in_picture,
1101 int *frame_size, float quality)
1103 int nb_frames, i, ret, format_video_sync;
1104 AVFrame *final_picture;
1105 AVCodecContext *enc, *dec;
1108 enc = ost->st->codec;
1109 dec = ist->st->codec;
1111 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1113 /* by default, we output a single frame */
1118 format_video_sync = video_sync_method;
1119 if (format_video_sync < 0)
1120 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1122 if (format_video_sync) {
1123 double vdelta = sync_ipts - ost->sync_opts;
1124 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1127 else if (format_video_sync == 2) {
1130 }else if(vdelta>0.6)
1131 ost->sync_opts= lrintf(sync_ipts);
1132 }else if (vdelta > 1.1)
1133 nb_frames = lrintf(vdelta);
1134 //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);
1135 if (nb_frames == 0){
1138 fprintf(stderr, "*** drop!\n");
1139 }else if (nb_frames > 1) {
1140 nb_frames_dup += nb_frames - 1;
1142 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1145 ost->sync_opts= lrintf(sync_ipts);
1147 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1151 do_video_resample(ost, ist, in_picture, &final_picture);
1153 /* duplicates frame if needed */
1154 for(i=0;i<nb_frames;i++) {
1156 av_init_packet(&pkt);
1157 pkt.stream_index= ost->index;
1159 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1160 /* raw pictures are written as AVPicture structure to
1161 avoid any copies. We support temorarily the older
1163 AVFrame* old_frame = enc->coded_frame;
1164 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1165 pkt.data= (uint8_t *)final_picture;
1166 pkt.size= sizeof(AVPicture);
1167 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1168 pkt.flags |= AV_PKT_FLAG_KEY;
1170 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1171 enc->coded_frame = old_frame;
1173 AVFrame big_picture;
1175 big_picture= *final_picture;
1176 /* better than nothing: use input picture interlaced
1178 big_picture.interlaced_frame = in_picture->interlaced_frame;
1179 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1180 if(top_field_first == -1)
1181 big_picture.top_field_first = in_picture->top_field_first;
1183 big_picture.top_field_first = top_field_first;
1186 /* handles same_quant here. This is not correct because it may
1187 not be a global option */
1188 big_picture.quality = quality;
1190 big_picture.pict_type = 0;
1191 // big_picture.pts = AV_NOPTS_VALUE;
1192 big_picture.pts= ost->sync_opts;
1193 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1194 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1195 if (ost->forced_kf_index < ost->forced_kf_count &&
1196 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1197 big_picture.pict_type = AV_PICTURE_TYPE_I;
1198 ost->forced_kf_index++;
1200 ret = avcodec_encode_video(enc,
1201 bit_buffer, bit_buffer_size,
1204 fprintf(stderr, "Video encoding failed\n");
1209 pkt.data= bit_buffer;
1211 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1212 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1213 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1214 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1215 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1217 if(enc->coded_frame->key_frame)
1218 pkt.flags |= AV_PKT_FLAG_KEY;
1219 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1222 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1223 // enc->frame_number-1, ret, enc->pict_type);
1224 /* if two pass, output log */
1225 if (ost->logfile && enc->stats_out) {
1226 fprintf(ost->logfile, "%s", enc->stats_out);
1231 ost->frame_number++;
1235 static double psnr(double d){
1236 return -10.0*log(d)/log(10.0);
1239 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1242 AVCodecContext *enc;
1244 double ti1, bitrate, avg_bitrate;
1246 /* this is executed just the first time do_video_stats is called */
1248 vstats_file = fopen(vstats_filename, "w");
1255 enc = ost->st->codec;
1256 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1257 frame_number = ost->frame_number;
1258 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1259 if (enc->flags&CODEC_FLAG_PSNR)
1260 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1262 fprintf(vstats_file,"f_size= %6d ", frame_size);
1263 /* compute pts value */
1264 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1268 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1269 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1270 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1271 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1272 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1276 static void print_report(OutputFile *output_files,
1277 OutputStream *ost_table, int nb_ostreams,
1282 AVFormatContext *oc;
1284 AVCodecContext *enc;
1285 int frame_number, vid, i;
1286 double bitrate, ti1, pts;
1287 static int64_t last_time = -1;
1288 static int qp_histogram[52];
1290 if (!is_last_report) {
1292 /* display the report every 0.5 seconds */
1293 cur_time = av_gettime();
1294 if (last_time == -1) {
1295 last_time = cur_time;
1298 if ((cur_time - last_time) < 500000)
1300 last_time = cur_time;
1304 oc = output_files[0].ctx;
1306 total_size = avio_size(oc->pb);
1307 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1308 total_size= avio_tell(oc->pb);
1313 for(i=0;i<nb_ostreams;i++) {
1315 ost = &ost_table[i];
1316 enc = ost->st->codec;
1317 if (!ost->st->stream_copy && enc->coded_frame)
1318 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1319 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1320 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1322 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1323 float t = (av_gettime()-timer_start) / 1000000.0;
1325 frame_number = ost->frame_number;
1326 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1327 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1329 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1333 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1336 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1338 if (enc->flags&CODEC_FLAG_PSNR){
1340 double error, error_sum=0;
1341 double scale, scale_sum=0;
1342 char type[3]= {'Y','U','V'};
1343 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1346 error= enc->error[j];
1347 scale= enc->width*enc->height*255.0*255.0*frame_number;
1349 error= enc->coded_frame->error[j];
1350 scale= enc->width*enc->height*255.0*255.0;
1355 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1357 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1361 /* compute min output value */
1362 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1363 if ((pts < ti1) && (pts > 0))
1369 if (verbose > 0 || is_last_report) {
1370 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1372 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1373 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1374 (double)total_size / 1024, ti1, bitrate);
1376 if (nb_frames_dup || nb_frames_drop)
1377 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1378 nb_frames_dup, nb_frames_drop);
1381 fprintf(stderr, "%s \r", buf);
1386 if (is_last_report && verbose >= 0){
1387 int64_t raw= audio_size + video_size + extra_size;
1388 fprintf(stderr, "\n");
1389 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1393 100.0*(total_size - raw)/raw
1398 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1400 int fill_char = 0x00;
1401 if (sample_fmt == AV_SAMPLE_FMT_U8)
1403 memset(buf, fill_char, size);
1406 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1407 static int output_packet(InputStream *ist, int ist_index,
1408 OutputStream *ost_table, int nb_ostreams,
1409 const AVPacket *pkt)
1411 AVFormatContext *os;
1416 void *buffer_to_free = NULL;
1417 static unsigned int samples_size= 0;
1418 AVSubtitle subtitle, *subtitle_to_free;
1419 int64_t pkt_pts = AV_NOPTS_VALUE;
1421 int frame_available;
1426 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1428 if(ist->next_pts == AV_NOPTS_VALUE)
1429 ist->next_pts= ist->pts;
1433 av_init_packet(&avpkt);
1441 if(pkt->dts != AV_NOPTS_VALUE)
1442 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1443 if(pkt->pts != AV_NOPTS_VALUE)
1444 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1446 //while we have more to decode or while the decoder did output something on EOF
1447 while (avpkt.size > 0 || (!pkt && got_output)) {
1448 uint8_t *data_buf, *decoded_data_buf;
1449 int data_size, decoded_data_size;
1451 ist->pts= ist->next_pts;
1453 if(avpkt.size && avpkt.size != pkt->size &&
1454 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1455 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1456 ist->showed_multi_packet_warning=1;
1459 /* decode the packet if needed */
1460 decoded_data_buf = NULL; /* fail safe */
1461 decoded_data_size= 0;
1462 data_buf = avpkt.data;
1463 data_size = avpkt.size;
1464 subtitle_to_free = NULL;
1465 if (ist->decoding_needed) {
1466 switch(ist->st->codec->codec_type) {
1467 case AVMEDIA_TYPE_AUDIO:{
1468 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1469 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1471 samples= av_malloc(samples_size);
1473 decoded_data_size= samples_size;
1474 /* XXX: could avoid copy if PCM 16 bits with same
1475 endianness as CPU */
1476 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1483 got_output = decoded_data_size > 0;
1484 /* Some bug in mpeg audio decoder gives */
1485 /* decoded_data_size < 0, it seems they are overflows */
1487 /* no audio frame */
1490 decoded_data_buf = (uint8_t *)samples;
1491 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1492 (ist->st->codec->sample_rate * ist->st->codec->channels);
1494 case AVMEDIA_TYPE_VIDEO:
1495 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1496 /* XXX: allocate picture correctly */
1497 avcodec_get_frame_defaults(&picture);
1498 avpkt.pts = pkt_pts;
1499 avpkt.dts = ist->pts;
1500 pkt_pts = AV_NOPTS_VALUE;
1502 ret = avcodec_decode_video2(ist->st->codec,
1503 &picture, &got_output, &avpkt);
1504 quality = same_quant ? picture.quality : 0;
1508 /* no picture yet */
1509 goto discard_packet;
1511 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1512 if (ist->st->codec->time_base.num != 0) {
1513 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1514 ist->next_pts += ((int64_t)AV_TIME_BASE *
1515 ist->st->codec->time_base.num * ticks) /
1516 ist->st->codec->time_base.den;
1519 buffer_to_free = NULL;
1520 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1522 case AVMEDIA_TYPE_SUBTITLE:
1523 ret = avcodec_decode_subtitle2(ist->st->codec,
1524 &subtitle, &got_output, &avpkt);
1528 goto discard_packet;
1530 subtitle_to_free = &subtitle;
1537 switch(ist->st->codec->codec_type) {
1538 case AVMEDIA_TYPE_AUDIO:
1539 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1540 ist->st->codec->sample_rate;
1542 case AVMEDIA_TYPE_VIDEO:
1543 if (ist->st->codec->time_base.num != 0) {
1544 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1545 ist->next_pts += ((int64_t)AV_TIME_BASE *
1546 ist->st->codec->time_base.num * ticks) /
1547 ist->st->codec->time_base.den;
1555 // preprocess audio (volume)
1556 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1557 if (audio_volume != 256) {
1560 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1561 int v = ((*volp) * audio_volume + 128) >> 8;
1562 if (v < -32768) v = -32768;
1563 if (v > 32767) v = 32767;
1569 /* frame rate emulation */
1571 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1572 int64_t now = av_gettime() - ist->start;
1576 /* if output time reached then transcode raw format,
1577 encode packets and output them */
1578 if (start_time == 0 || ist->pts >= start_time)
1579 for(i=0;i<nb_ostreams;i++) {
1582 ost = &ost_table[i];
1583 if (ost->source_index != ist_index)
1587 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1588 ost->input_video_filter) {
1590 if (ist->st->sample_aspect_ratio.num)
1591 sar = ist->st->sample_aspect_ratio;
1593 sar = ist->st->codec->sample_aspect_ratio;
1594 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, ist->pts, sar);
1596 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1597 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1598 while (frame_available) {
1599 AVRational ist_pts_tb;
1600 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1601 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1603 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1605 os = output_files[ost->file_index].ctx;
1607 /* set the input output pts pairs */
1608 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1610 if (ost->encoding_needed) {
1611 av_assert0(ist->decoding_needed);
1612 switch(ost->st->codec->codec_type) {
1613 case AVMEDIA_TYPE_AUDIO:
1614 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1616 case AVMEDIA_TYPE_VIDEO:
1618 if (ost->picref->video && !ost->frame_aspect_ratio)
1619 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1621 do_video_out(os, ost, ist, &picture, &frame_size,
1622 same_quant ? quality : ost->st->codec->global_quality);
1623 if (vstats_filename && frame_size)
1624 do_video_stats(os, ost, frame_size);
1626 case AVMEDIA_TYPE_SUBTITLE:
1627 do_subtitle_out(os, ost, ist, &subtitle,
1634 AVFrame avframe; //FIXME/XXX remove this
1636 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1638 av_init_packet(&opkt);
1640 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1641 #if !CONFIG_AVFILTER
1647 /* no reencoding needed : output the packet directly */
1648 /* force the input stream PTS */
1650 avcodec_get_frame_defaults(&avframe);
1651 ost->st->codec->coded_frame= &avframe;
1652 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1654 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1655 audio_size += data_size;
1656 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1657 video_size += data_size;
1661 opkt.stream_index= ost->index;
1662 if(pkt->pts != AV_NOPTS_VALUE)
1663 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1665 opkt.pts= AV_NOPTS_VALUE;
1667 if (pkt->dts == AV_NOPTS_VALUE)
1668 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1670 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1671 opkt.dts -= ost_tb_start_time;
1673 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1674 opkt.flags= pkt->flags;
1676 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1677 if( ost->st->codec->codec_id != CODEC_ID_H264
1678 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1679 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1681 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1682 opkt.destruct= av_destruct_packet;
1684 opkt.data = data_buf;
1685 opkt.size = data_size;
1688 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1689 ost->st->codec->frame_number++;
1690 ost->frame_number++;
1691 av_free_packet(&opkt);
1695 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1696 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1698 avfilter_unref_buffer(ost->picref);
1703 av_free(buffer_to_free);
1704 /* XXX: allocate the subtitles in the codec ? */
1705 if (subtitle_to_free) {
1706 avsubtitle_free(subtitle_to_free);
1707 subtitle_to_free = NULL;
1714 for(i=0;i<nb_ostreams;i++) {
1715 ost = &ost_table[i];
1716 if (ost->source_index == ist_index) {
1717 AVCodecContext *enc= ost->st->codec;
1718 os = output_files[ost->file_index].ctx;
1720 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1722 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1725 if (ost->encoding_needed) {
1729 av_init_packet(&pkt);
1730 pkt.stream_index= ost->index;
1732 switch(ost->st->codec->codec_type) {
1733 case AVMEDIA_TYPE_AUDIO:
1734 fifo_bytes = av_fifo_size(ost->fifo);
1736 /* encode any samples remaining in fifo */
1737 if (fifo_bytes > 0) {
1738 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1739 int fs_tmp = enc->frame_size;
1741 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1742 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1743 enc->frame_size = fifo_bytes / (osize * enc->channels);
1745 int frame_bytes = enc->frame_size*osize*enc->channels;
1746 if (allocated_audio_buf_size < frame_bytes)
1748 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1751 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1752 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1753 ost->st->time_base.num, enc->sample_rate);
1754 enc->frame_size = fs_tmp;
1757 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1760 fprintf(stderr, "Audio encoding failed\n");
1764 pkt.flags |= AV_PKT_FLAG_KEY;
1766 case AVMEDIA_TYPE_VIDEO:
1767 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1769 fprintf(stderr, "Video encoding failed\n");
1773 if(enc->coded_frame && enc->coded_frame->key_frame)
1774 pkt.flags |= AV_PKT_FLAG_KEY;
1775 if (ost->logfile && enc->stats_out) {
1776 fprintf(ost->logfile, "%s", enc->stats_out);
1785 pkt.data= bit_buffer;
1787 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1788 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1789 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1799 static void print_sdp(OutputFile *output_files, int n)
1803 AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1807 for (i = 0; i < n; i++)
1808 avc[i] = output_files[i].ctx;
1810 av_sdp_create(avc, n, sdp, sizeof(sdp));
1811 printf("SDP:\n%s\n", sdp);
1817 * The following code is the main loop of the file converter
1819 static int transcode(OutputFile *output_files,
1820 int nb_output_files,
1821 InputFile *input_files,
1825 AVFormatContext *is, *os;
1826 AVCodecContext *codec, *icodec;
1832 int no_packet_count=0;
1834 if (!(no_packet = av_mallocz(nb_input_files)))
1838 for (i = 0; i < nb_input_streams; i++)
1839 input_streams[i].start = av_gettime();
1841 /* output stream init */
1842 for(i=0;i<nb_output_files;i++) {
1843 os = output_files[i].ctx;
1844 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1845 av_dump_format(os, i, os->filename, 1);
1846 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1847 ret = AVERROR(EINVAL);
1852 /* for each output stream, we compute the right encoding parameters */
1853 for (i = 0; i < nb_output_streams; i++) {
1854 ost = &output_streams[i];
1855 os = output_files[ost->file_index].ctx;
1856 ist = &input_streams[ost->source_index];
1858 codec = ost->st->codec;
1859 icodec = ist->st->codec;
1861 ost->st->disposition = ist->st->disposition;
1862 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1863 codec->chroma_sample_location = icodec->chroma_sample_location;
1865 if (ost->st->stream_copy) {
1866 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1868 if (extra_size > INT_MAX)
1871 /* if stream_copy is selected, no need to decode or encode */
1872 codec->codec_id = icodec->codec_id;
1873 codec->codec_type = icodec->codec_type;
1875 if(!codec->codec_tag){
1876 if( !os->oformat->codec_tag
1877 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1878 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1879 codec->codec_tag = icodec->codec_tag;
1882 codec->bit_rate = icodec->bit_rate;
1883 codec->rc_max_rate = icodec->rc_max_rate;
1884 codec->rc_buffer_size = icodec->rc_buffer_size;
1885 codec->extradata= av_mallocz(extra_size);
1886 if (!codec->extradata)
1888 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1889 codec->extradata_size= icodec->extradata_size;
1890 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){
1891 codec->time_base = icodec->time_base;
1892 codec->time_base.num *= icodec->ticks_per_frame;
1893 av_reduce(&codec->time_base.num, &codec->time_base.den,
1894 codec->time_base.num, codec->time_base.den, INT_MAX);
1896 codec->time_base = ist->st->time_base;
1897 switch(codec->codec_type) {
1898 case AVMEDIA_TYPE_AUDIO:
1899 if(audio_volume != 256) {
1900 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1903 codec->channel_layout = icodec->channel_layout;
1904 codec->sample_rate = icodec->sample_rate;
1905 codec->channels = icodec->channels;
1906 codec->frame_size = icodec->frame_size;
1907 codec->audio_service_type = icodec->audio_service_type;
1908 codec->block_align= icodec->block_align;
1909 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1910 codec->block_align= 0;
1911 if(codec->codec_id == CODEC_ID_AC3)
1912 codec->block_align= 0;
1914 case AVMEDIA_TYPE_VIDEO:
1915 codec->pix_fmt = icodec->pix_fmt;
1916 codec->width = icodec->width;
1917 codec->height = icodec->height;
1918 codec->has_b_frames = icodec->has_b_frames;
1919 if (!codec->sample_aspect_ratio.num) {
1920 codec->sample_aspect_ratio =
1921 ost->st->sample_aspect_ratio =
1922 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1923 ist->st->codec->sample_aspect_ratio.num ?
1924 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1927 case AVMEDIA_TYPE_SUBTITLE:
1928 codec->width = icodec->width;
1929 codec->height = icodec->height;
1931 case AVMEDIA_TYPE_DATA:
1938 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1939 switch(codec->codec_type) {
1940 case AVMEDIA_TYPE_AUDIO:
1941 ost->fifo= av_fifo_alloc(1024);
1944 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
1945 if (!codec->sample_rate) {
1946 codec->sample_rate = icodec->sample_rate;
1948 codec->sample_rate >>= icodec->lowres;
1950 choose_sample_rate(ost->st, ost->enc);
1951 codec->time_base = (AVRational){1, codec->sample_rate};
1952 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
1953 codec->sample_fmt = icodec->sample_fmt;
1954 choose_sample_fmt(ost->st, ost->enc);
1955 if (!codec->channels)
1956 codec->channels = icodec->channels;
1957 codec->channel_layout = icodec->channel_layout;
1958 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
1959 codec->channel_layout = 0;
1960 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1961 icodec->request_channels = codec->channels;
1962 ist->decoding_needed = 1;
1963 ost->encoding_needed = 1;
1964 ost->resample_sample_fmt = icodec->sample_fmt;
1965 ost->resample_sample_rate = icodec->sample_rate;
1966 ost->resample_channels = icodec->channels;
1968 case AVMEDIA_TYPE_VIDEO:
1969 if (codec->pix_fmt == PIX_FMT_NONE)
1970 codec->pix_fmt = icodec->pix_fmt;
1971 choose_pixel_fmt(ost->st, ost->enc);
1973 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
1974 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
1978 if (!codec->width || !codec->height) {
1979 codec->width = icodec->width;
1980 codec->height = icodec->height;
1983 ost->video_resample = codec->width != icodec->width ||
1984 codec->height != icodec->height ||
1985 codec->pix_fmt != icodec->pix_fmt;
1986 if (ost->video_resample) {
1987 #if !CONFIG_AVFILTER
1988 avcodec_get_frame_defaults(&ost->pict_tmp);
1989 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1990 codec->width, codec->height)) {
1991 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1994 ost->img_resample_ctx = sws_getContext(
2001 ost->sws_flags, NULL, NULL, NULL);
2002 if (ost->img_resample_ctx == NULL) {
2003 fprintf(stderr, "Cannot get resampling context\n");
2007 codec->bits_per_raw_sample= 0;
2010 ost->resample_height = icodec->height;
2011 ost->resample_width = icodec->width;
2012 ost->resample_pix_fmt= icodec->pix_fmt;
2013 ost->encoding_needed = 1;
2014 ist->decoding_needed = 1;
2016 if (!ost->frame_rate.num)
2017 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2018 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2019 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2020 ost->frame_rate = ost->enc->supported_framerates[idx];
2022 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2025 if (configure_video_filters(ist, ost)) {
2026 fprintf(stderr, "Error opening filters!\n");
2031 case AVMEDIA_TYPE_SUBTITLE:
2032 ost->encoding_needed = 1;
2033 ist->decoding_needed = 1;
2040 if (ost->encoding_needed &&
2041 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2042 char logfilename[1024];
2045 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2046 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2048 if (codec->flags & CODEC_FLAG_PASS1) {
2049 f = fopen(logfilename, "wb");
2051 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2057 size_t logbuffer_size;
2058 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2059 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2062 codec->stats_in = logbuffer;
2066 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2067 int size= codec->width * codec->height;
2068 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2073 bit_buffer = av_malloc(bit_buffer_size);
2075 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2077 ret = AVERROR(ENOMEM);
2081 /* open each encoder */
2082 for (i = 0; i < nb_output_streams; i++) {
2083 ost = &output_streams[i];
2084 if (ost->encoding_needed) {
2085 AVCodec *codec = ost->enc;
2086 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2088 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2089 ost->st->codec->codec_id, ost->file_index, ost->index);
2090 ret = AVERROR(EINVAL);
2093 if (dec->subtitle_header) {
2094 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2095 if (!ost->st->codec->subtitle_header) {
2096 ret = AVERROR(ENOMEM);
2099 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2100 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2102 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2103 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2104 ost->file_index, ost->index);
2105 ret = AVERROR(EINVAL);
2108 assert_codec_experimental(ost->st->codec, 1);
2109 assert_avoptions(ost->opts);
2110 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2111 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2112 "It takes bits/s as argument, not kbits/s\n");
2113 extra_size += ost->st->codec->extradata_size;
2117 /* open each decoder */
2118 for (i = 0; i < nb_input_streams; i++) {
2119 ist = &input_streams[i];
2120 if (ist->decoding_needed) {
2121 AVCodec *codec = ist->dec;
2123 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2125 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2126 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2127 ret = AVERROR(EINVAL);
2131 /* update requested sample format for the decoder based on the
2132 corresponding encoder sample format */
2133 for (j = 0; j < nb_output_streams; j++) {
2134 ost = &output_streams[j];
2135 if (ost->source_index == i) {
2136 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2141 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2142 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2143 ist->file_index, ist->st->index);
2144 ret = AVERROR(EINVAL);
2147 assert_codec_experimental(ist->st->codec, 0);
2148 assert_avoptions(ost->opts);
2153 for (i = 0; i < nb_input_streams; i++) {
2155 ist = &input_streams[i];
2157 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2158 ist->next_pts = AV_NOPTS_VALUE;
2159 init_pts_correction(&ist->pts_ctx);
2163 /* open files and write file headers */
2164 for (i = 0; i < nb_output_files; i++) {
2165 os = output_files[i].ctx;
2166 if (avformat_write_header(os, &output_files[i].opts) < 0) {
2167 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2168 ret = AVERROR(EINVAL);
2171 assert_avoptions(output_files[i].opts);
2172 if (strcmp(os->oformat->name, "rtp")) {
2178 /* dump the file output parameters - cannot be done before in case
2180 for(i=0;i<nb_output_files;i++) {
2181 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2184 /* dump the stream mapping */
2186 fprintf(stderr, "Stream mapping:\n");
2187 for (i = 0; i < nb_output_streams;i ++) {
2188 ost = &output_streams[i];
2189 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2190 input_streams[ost->source_index].file_index,
2191 input_streams[ost->source_index].st->index,
2194 if (ost->sync_ist != &input_streams[ost->source_index])
2195 fprintf(stderr, " [sync #%d.%d]",
2196 ost->sync_ist->file_index,
2197 ost->sync_ist->st->index);
2198 if (ost->st->stream_copy)
2199 fprintf(stderr, " (copy)");
2200 fprintf(stderr, "\n");
2205 fprintf(stderr, "%s\n", error);
2210 print_sdp(output_files, nb_output_files);
2214 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2217 timer_start = av_gettime();
2219 for(; received_sigterm == 0;) {
2220 int file_index, ist_index;
2226 ipts_min = INT64_MAX;
2229 /* select the stream that we must read now by looking at the
2230 smallest output pts */
2232 for (i = 0; i < nb_output_streams; i++) {
2235 ost = &output_streams[i];
2236 os = output_files[ost->file_index].ctx;
2237 ist = &input_streams[ost->source_index];
2238 if(ist->is_past_recording_time || no_packet[ist->file_index])
2240 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2242 if (!input_files[ist->file_index].eof_reached){
2243 if(ipts < ipts_min) {
2245 if(input_sync ) file_index = ist->file_index;
2247 if(opts < opts_min) {
2249 if(!input_sync) file_index = ist->file_index;
2252 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2257 /* if none, if is finished */
2258 if (file_index < 0) {
2259 if(no_packet_count){
2261 memset(no_packet, 0, nb_input_files);
2268 /* finish if limit size exhausted */
2269 if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0].ctx->pb))
2272 /* read a frame from it and output it in the fifo */
2273 is = input_files[file_index].ctx;
2274 ret= av_read_frame(is, &pkt);
2275 if(ret == AVERROR(EAGAIN)){
2276 no_packet[file_index]=1;
2281 input_files[file_index].eof_reached = 1;
2289 memset(no_packet, 0, nb_input_files);
2292 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2293 is->streams[pkt.stream_index]);
2295 /* the following test is needed in case new streams appear
2296 dynamically in stream : we ignore them */
2297 if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2298 goto discard_packet;
2299 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2300 ist = &input_streams[ist_index];
2302 goto discard_packet;
2304 if (pkt.dts != AV_NOPTS_VALUE)
2305 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2306 if (pkt.pts != AV_NOPTS_VALUE)
2307 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2309 if (ist->ts_scale) {
2310 if(pkt.pts != AV_NOPTS_VALUE)
2311 pkt.pts *= ist->ts_scale;
2312 if(pkt.dts != AV_NOPTS_VALUE)
2313 pkt.dts *= ist->ts_scale;
2316 // 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);
2317 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2318 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2319 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2320 int64_t delta= pkt_dts - ist->next_pts;
2321 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2322 input_files[ist->file_index].ts_offset -= delta;
2324 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2325 delta, input_files[ist->file_index].ts_offset);
2326 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2327 if(pkt.pts != AV_NOPTS_VALUE)
2328 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2332 /* finish if recording time exhausted */
2333 if (recording_time != INT64_MAX &&
2334 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2335 ist->is_past_recording_time = 1;
2336 goto discard_packet;
2339 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2340 if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2343 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2344 ist->file_index, ist->st->index);
2347 av_free_packet(&pkt);
2352 av_free_packet(&pkt);
2354 /* dump report by using the output first video and audio streams */
2355 print_report(output_files, output_streams, nb_output_streams, 0);
2358 /* at the end of stream, we must flush the decoder buffers */
2359 for (i = 0; i < nb_input_streams; i++) {
2360 ist = &input_streams[i];
2361 if (ist->decoding_needed) {
2362 output_packet(ist, i, output_streams, nb_output_streams, NULL);
2368 /* write the trailer if needed and close file */
2369 for(i=0;i<nb_output_files;i++) {
2370 os = output_files[i].ctx;
2371 av_write_trailer(os);
2374 /* dump report by using the first video and audio streams */
2375 print_report(output_files, output_streams, nb_output_streams, 1);
2377 /* close each encoder */
2378 for (i = 0; i < nb_output_streams; i++) {
2379 ost = &output_streams[i];
2380 if (ost->encoding_needed) {
2381 av_freep(&ost->st->codec->stats_in);
2382 avcodec_close(ost->st->codec);
2385 avfilter_graph_free(&ost->graph);
2389 /* close each decoder */
2390 for (i = 0; i < nb_input_streams; i++) {
2391 ist = &input_streams[i];
2392 if (ist->decoding_needed) {
2393 avcodec_close(ist->st->codec);
2401 av_freep(&bit_buffer);
2402 av_freep(&no_packet);
2404 if (output_streams) {
2405 for (i = 0; i < nb_output_streams; i++) {
2406 ost = &output_streams[i];
2408 if (ost->st->stream_copy)
2409 av_freep(&ost->st->codec->extradata);
2411 fclose(ost->logfile);
2412 ost->logfile = NULL;
2414 av_fifo_free(ost->fifo); /* works even if fifo is not
2415 initialized but set to zero */
2416 av_freep(&ost->st->codec->subtitle_header);
2417 av_free(ost->pict_tmp.data[0]);
2418 av_free(ost->forced_kf_pts);
2419 if (ost->video_resample)
2420 sws_freeContext(ost->img_resample_ctx);
2422 audio_resample_close(ost->resample);
2423 if (ost->reformat_ctx)
2424 av_audio_convert_free(ost->reformat_ctx);
2425 av_dict_free(&ost->opts);
2432 static int opt_format(const char *opt, const char *arg)
2434 last_asked_format = arg;
2438 static int opt_video_rc_override_string(const char *opt, const char *arg)
2440 video_rc_override_string = arg;
2444 static int opt_me_threshold(const char *opt, const char *arg)
2446 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2450 static int opt_verbose(const char *opt, const char *arg)
2452 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2456 static int opt_frame_rate(const char *opt, const char *arg)
2458 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2459 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2465 static int opt_frame_crop(const char *opt, const char *arg)
2467 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2468 return AVERROR(EINVAL);
2471 static int opt_frame_size(const char *opt, const char *arg)
2473 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2474 fprintf(stderr, "Incorrect frame size\n");
2475 return AVERROR(EINVAL);
2480 static int opt_pad(const char *opt, const char *arg) {
2481 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2485 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2487 if (strcmp(arg, "list")) {
2488 frame_pix_fmt = av_get_pix_fmt(arg);
2489 if (frame_pix_fmt == PIX_FMT_NONE) {
2490 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2491 return AVERROR(EINVAL);
2500 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2507 p = strchr(arg, ':');
2509 x = strtol(arg, &end, 10);
2511 y = strtol(end+1, &end, 10);
2513 ar = (double)x / (double)y;
2515 ar = strtod(arg, NULL);
2518 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2519 return AVERROR(EINVAL);
2521 frame_aspect_ratio = ar;
2525 static int opt_metadata(const char *opt, const char *arg)
2527 char *mid= strchr(arg, '=');
2530 fprintf(stderr, "Missing =\n");
2535 av_dict_set(&metadata, arg, mid, 0);
2540 static int opt_qscale(const char *opt, const char *arg)
2542 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2543 if (video_qscale == 0) {
2544 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2545 return AVERROR(EINVAL);
2550 static int opt_top_field_first(const char *opt, const char *arg)
2552 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2556 static int opt_thread_count(const char *opt, const char *arg)
2558 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2561 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2566 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2568 if (strcmp(arg, "list")) {
2569 audio_sample_fmt = av_get_sample_fmt(arg);
2570 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2571 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2572 return AVERROR(EINVAL);
2577 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2578 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2584 static int opt_audio_rate(const char *opt, const char *arg)
2586 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2590 static int opt_audio_channels(const char *opt, const char *arg)
2592 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2596 static int opt_codec(const char *opt, const char *arg)
2598 return av_dict_set(&codec_names, opt, arg, 0);
2601 static int opt_audio_codec(const char *opt, const char *arg)
2603 return opt_codec("codec:a", arg);
2606 static int opt_video_codec(const char *opt, const char *arg)
2608 return opt_codec("codec:v", arg);
2611 static int opt_subtitle_codec(const char *opt, const char *arg)
2613 return opt_codec("codec:s", arg);
2616 static int opt_data_codec(const char *opt, const char *arg)
2618 return opt_codec("codec:d", arg);
2621 static int opt_codec_tag(const char *opt, const char *arg)
2624 uint32_t *codec_tag;
2626 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2627 !strcmp(opt, "vtag") ? &video_codec_tag :
2628 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2632 *codec_tag = strtol(arg, &tail, 0);
2634 *codec_tag = AV_RL32(arg);
2639 static int opt_map(const char *opt, const char *arg)
2641 StreamMap *m = NULL;
2642 int i, negative = 0, file_idx;
2643 int sync_file_idx = -1, sync_stream_idx;
2651 map = av_strdup(arg);
2653 /* parse sync stream first, just pick first matching stream */
2654 if (sync = strchr(map, ',')) {
2656 sync_file_idx = strtol(sync + 1, &sync, 0);
2657 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2658 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2663 for (i = 0; i < input_files[sync_file_idx].ctx->nb_streams; i++)
2664 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2665 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2666 sync_stream_idx = i;
2669 if (i == input_files[sync_file_idx].ctx->nb_streams) {
2670 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2671 "match any streams.\n", arg);
2677 file_idx = strtol(map, &p, 0);
2678 if (file_idx >= nb_input_files || file_idx < 0) {
2679 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2683 /* disable some already defined maps */
2684 for (i = 0; i < nb_stream_maps; i++) {
2685 m = &stream_maps[i];
2686 if (check_stream_specifier(input_files[m->file_index].ctx,
2687 input_files[m->file_index].ctx->streams[m->stream_index],
2688 *p == ':' ? p + 1 : p) > 0)
2692 for (i = 0; i < input_files[file_idx].ctx->nb_streams; i++) {
2693 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2694 *p == ':' ? p + 1 : p) <= 0)
2696 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2697 m = &stream_maps[nb_stream_maps - 1];
2699 m->file_index = file_idx;
2700 m->stream_index = i;
2702 if (sync_file_idx >= 0) {
2703 m->sync_file_index = sync_file_idx;
2704 m->sync_stream_index = sync_stream_idx;
2706 m->sync_file_index = file_idx;
2707 m->sync_stream_index = i;
2712 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2720 static void parse_meta_type(char *arg, char *type, int *index)
2730 if (*(++arg) == ':')
2731 *index = strtol(++arg, NULL, 0);
2734 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2741 static int opt_map_metadata(const char *opt, const char *arg)
2743 MetadataMap *m, *m1;
2746 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2747 &nb_meta_data_maps, nb_meta_data_maps + 1);
2749 m = &meta_data_maps[nb_meta_data_maps - 1][1];
2750 m->file = strtol(arg, &p, 0);
2751 parse_meta_type(p, &m->type, &m->index);
2753 m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2754 if (p = strchr(opt, ':'))
2755 parse_meta_type(p, &m1->type, &m1->index);
2759 if (m->type == 'g' || m1->type == 'g')
2760 metadata_global_autocopy = 0;
2761 if (m->type == 's' || m1->type == 's')
2762 metadata_streams_autocopy = 0;
2763 if (m->type == 'c' || m1->type == 'c')
2764 metadata_chapters_autocopy = 0;
2769 static int opt_input_ts_scale(const char *opt, const char *arg)
2771 return av_dict_set(&ts_scale, opt, arg, 0);
2774 static int opt_recording_time(const char *opt, const char *arg)
2776 recording_time = parse_time_or_die(opt, arg, 1);
2780 static int opt_start_time(const char *opt, const char *arg)
2782 start_time = parse_time_or_die(opt, arg, 1);
2786 static int opt_input_ts_offset(const char *opt, const char *arg)
2788 input_ts_offset = parse_time_or_die(opt, arg, 1);
2792 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2794 const char *codec_string = encoder ? "encoder" : "decoder";
2798 return CODEC_ID_NONE;
2800 avcodec_find_encoder_by_name(name) :
2801 avcodec_find_decoder_by_name(name);
2803 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2806 if(codec->type != type) {
2807 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2813 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2815 AVDictionaryEntry *e = NULL;
2816 char *codec_name = NULL;
2819 while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2820 char *p = strchr(e->key, ':');
2822 if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2823 codec_name = e->value;
2830 st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2831 return avcodec_find_encoder(st->codec->codec_id);
2833 } else if (!strcmp(codec_name, "copy"))
2834 st->stream_copy = 1;
2836 st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2837 return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2838 avcodec_find_decoder_by_name(codec_name);
2845 * Add all the streams from the given input file to the global
2846 * list of input streams.
2848 static void add_input_streams(AVFormatContext *ic)
2850 int i, rfps, rfps_base, ret;
2852 for (i = 0; i < ic->nb_streams; i++) {
2853 AVStream *st = ic->streams[i];
2854 AVCodecContext *dec = st->codec;
2855 AVDictionaryEntry *e = NULL;
2859 dec->thread_count = thread_count;
2861 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2862 ist = &input_streams[nb_input_streams - 1];
2864 ist->file_index = nb_input_files;
2866 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2868 while (e = av_dict_get(ts_scale, "", e, AV_DICT_IGNORE_SUFFIX)) {
2869 char *p = strchr(e->key, ':');
2871 if ((ret = check_stream_specifier(ic, st, p ? p + 1 : "")) > 0)
2877 ist->ts_scale = strtod(scale, NULL);
2879 ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2881 switch (dec->codec_type) {
2882 case AVMEDIA_TYPE_AUDIO:
2884 st->discard= AVDISCARD_ALL;
2886 case AVMEDIA_TYPE_VIDEO:
2887 rfps = ic->streams[i]->r_frame_rate.num;
2888 rfps_base = ic->streams[i]->r_frame_rate.den;
2890 dec->flags |= CODEC_FLAG_EMU_EDGE;
2891 dec->height >>= dec->lowres;
2892 dec->width >>= dec->lowres;
2895 dec->debug |= FF_DEBUG_MV;
2897 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2900 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2901 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
2903 (float)rfps / rfps_base, rfps, rfps_base);
2907 st->discard= AVDISCARD_ALL;
2908 else if(video_discard)
2909 st->discard= video_discard;
2911 case AVMEDIA_TYPE_DATA:
2913 case AVMEDIA_TYPE_SUBTITLE:
2914 if(subtitle_disable)
2915 st->discard = AVDISCARD_ALL;
2917 case AVMEDIA_TYPE_ATTACHMENT:
2918 case AVMEDIA_TYPE_UNKNOWN:
2926 static int opt_input_file(const char *opt, const char *filename)
2928 AVFormatContext *ic;
2929 AVInputFormat *file_iformat = NULL;
2933 AVDictionary **opts;
2934 int orig_nb_streams; // number of streams before avformat_find_stream_info
2936 if (last_asked_format) {
2937 if (!(file_iformat = av_find_input_format(last_asked_format))) {
2938 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2941 last_asked_format = NULL;
2944 if (!strcmp(filename, "-"))
2947 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2948 !strcmp(filename, "/dev/stdin");
2950 /* get default parameters from command line */
2951 ic = avformat_alloc_context();
2953 print_error(filename, AVERROR(ENOMEM));
2956 if (audio_sample_rate) {
2957 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2958 av_dict_set(&format_opts, "sample_rate", buf, 0);
2960 if (audio_channels) {
2961 snprintf(buf, sizeof(buf), "%d", audio_channels);
2962 av_dict_set(&format_opts, "channels", buf, 0);
2964 if (frame_rate.num) {
2965 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
2966 av_dict_set(&format_opts, "framerate", buf, 0);
2968 if (frame_width && frame_height) {
2969 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
2970 av_dict_set(&format_opts, "video_size", buf, 0);
2972 if (frame_pix_fmt != PIX_FMT_NONE)
2973 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
2975 ic->flags |= AVFMT_FLAG_NONBLOCK;
2977 /* open the input file with generic libav function */
2978 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2980 print_error(filename, err);
2983 assert_avoptions(format_opts);
2988 for(i=0; i<ic->nb_streams; i++){
2989 ic->streams[i]->discard= AVDISCARD_ALL;
2991 for(i=0; i<ic->nb_programs; i++){
2992 AVProgram *p= ic->programs[i];
2993 if(p->id != opt_programid){
2994 p->discard = AVDISCARD_ALL;
2997 for(j=0; j<p->nb_stream_indexes; j++){
2998 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3003 fprintf(stderr, "Specified program id not found\n");
3009 /* apply forced codec ids */
3010 for (i = 0; i < ic->nb_streams; i++)
3011 choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3013 /* Set AVCodecContext options for avformat_find_stream_info */
3014 opts = setup_find_stream_info_opts(ic, codec_opts);
3015 orig_nb_streams = ic->nb_streams;
3017 /* If not enough info to get the stream parameters, we decode the
3018 first frames to get it. (used in mpeg case for example) */
3019 ret = avformat_find_stream_info(ic, opts);
3020 if (ret < 0 && verbose >= 0) {
3021 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3022 av_close_input_file(ic);
3026 timestamp = start_time;
3027 /* add the stream start time */
3028 if (ic->start_time != AV_NOPTS_VALUE)
3029 timestamp += ic->start_time;
3031 /* if seeking requested, we execute it */
3032 if (start_time != 0) {
3033 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3035 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3036 filename, (double)timestamp / AV_TIME_BASE);
3038 /* reset seek info */
3042 /* update the current parameters so that they match the one of the input stream */
3043 add_input_streams(ic);
3045 /* dump the file content */
3047 av_dump_format(ic, nb_input_files, filename, 0);
3049 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3050 input_files[nb_input_files - 1].ctx = ic;
3051 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3052 input_files[nb_input_files - 1].ts_offset = input_ts_offset - (copy_ts ? 0 : timestamp);
3054 frame_rate = (AVRational){0, 0};
3055 frame_pix_fmt = PIX_FMT_NONE;
3058 audio_sample_rate = 0;
3060 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3061 av_dict_free(&ts_scale);
3063 for (i = 0; i < orig_nb_streams; i++)
3064 av_dict_free(&opts[i]);
3066 av_dict_free(&codec_names);
3072 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3073 AVCodecContext *avctx)
3079 for (p = kf; *p; p++)
3082 ost->forced_kf_count = n;
3083 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3084 if (!ost->forced_kf_pts) {
3085 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3088 for (i = 0; i < n; i++) {
3089 p = i ? strchr(p, ',') + 1 : kf;
3090 t = parse_time_or_die("force_key_frames", p, 1);
3091 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3095 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3098 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3099 int idx = oc->nb_streams - 1;
3102 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3106 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3107 nb_output_streams + 1);
3108 ost = &output_streams[nb_output_streams - 1];
3109 ost->file_index = nb_output_files;
3112 st->codec->codec_type = type;
3113 ost->enc = choose_codec(oc, st, type, codec_names);
3115 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3118 avcodec_get_context_defaults3(st->codec, ost->enc);
3119 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3121 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3125 static OutputStream *new_video_stream(AVFormatContext *oc)
3129 AVCodecContext *video_enc;
3131 ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3133 if (!st->stream_copy) {
3134 ost->frame_aspect_ratio = frame_aspect_ratio;
3135 frame_aspect_ratio = 0;
3137 ost->avfilter= vfilters;
3142 ost->bitstream_filters = video_bitstream_filters;
3143 video_bitstream_filters= NULL;
3145 st->codec->thread_count= thread_count;
3147 video_enc = st->codec;
3150 video_enc->codec_tag= video_codec_tag;
3152 if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3153 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3156 if (st->stream_copy) {
3157 video_enc->sample_aspect_ratio =
3158 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3164 ost->frame_rate = frame_rate;
3166 video_enc->width = frame_width;
3167 video_enc->height = frame_height;
3168 video_enc->pix_fmt = frame_pix_fmt;
3169 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3172 video_enc->gop_size = 0;
3173 if (video_qscale || same_quant) {
3174 video_enc->flags |= CODEC_FLAG_QSCALE;
3175 video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3179 video_enc->intra_matrix = intra_matrix;
3181 video_enc->inter_matrix = inter_matrix;
3183 p= video_rc_override_string;
3186 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3188 fprintf(stderr, "error parsing rc_override\n");
3191 video_enc->rc_override=
3192 av_realloc(video_enc->rc_override,
3193 sizeof(RcOverride)*(i+1));
3194 video_enc->rc_override[i].start_frame= start;
3195 video_enc->rc_override[i].end_frame = end;
3197 video_enc->rc_override[i].qscale= q;
3198 video_enc->rc_override[i].quality_factor= 1.0;
3201 video_enc->rc_override[i].qscale= 0;
3202 video_enc->rc_override[i].quality_factor= -q/100.0;
3207 video_enc->rc_override_count=i;
3208 if (!video_enc->rc_initial_buffer_occupancy)
3209 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3210 video_enc->me_threshold= me_threshold;
3211 video_enc->intra_dc_precision= intra_dc_precision - 8;
3214 video_enc->flags|= CODEC_FLAG_PSNR;
3219 video_enc->flags |= CODEC_FLAG_PASS1;
3221 video_enc->flags |= CODEC_FLAG_PASS2;
3225 if (forced_key_frames)
3226 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3228 if (video_language) {
3229 av_dict_set(&st->metadata, "language", video_language, 0);
3230 av_freep(&video_language);
3233 /* reset some key parameters */
3235 av_freep(&forced_key_frames);
3236 frame_pix_fmt = PIX_FMT_NONE;
3240 static OutputStream *new_audio_stream(AVFormatContext *oc)
3244 AVCodecContext *audio_enc;
3246 ost = new_output_stream(oc, AVMEDIA_TYPE_AUDIO);
3249 ost->bitstream_filters = audio_bitstream_filters;
3250 audio_bitstream_filters= NULL;
3252 st->codec->thread_count= thread_count;
3254 audio_enc = st->codec;
3255 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3258 audio_enc->codec_tag= audio_codec_tag;
3260 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3261 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3263 if (!st->stream_copy) {
3264 if (audio_qscale > QSCALE_NONE) {
3265 audio_enc->flags |= CODEC_FLAG_QSCALE;
3266 audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3269 audio_enc->channels = audio_channels;
3270 if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3271 audio_enc->sample_fmt = audio_sample_fmt;
3272 if (audio_sample_rate)
3273 audio_enc->sample_rate = audio_sample_rate;
3275 if (audio_language) {
3276 av_dict_set(&st->metadata, "language", audio_language, 0);
3277 av_freep(&audio_language);
3280 /* reset some key parameters */
3286 static OutputStream *new_data_stream(AVFormatContext *oc)
3290 AVCodecContext *data_enc;
3292 ost = new_output_stream(oc, AVMEDIA_TYPE_DATA);
3294 data_enc = st->codec;
3295 if (!st->stream_copy) {
3296 fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3301 data_enc->codec_tag= data_codec_tag;
3303 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3304 data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3311 static OutputStream *new_subtitle_stream(AVFormatContext *oc)
3315 AVCodecContext *subtitle_enc;
3317 ost = new_output_stream(oc, AVMEDIA_TYPE_SUBTITLE);
3319 subtitle_enc = st->codec;
3321 ost->bitstream_filters = subtitle_bitstream_filters;
3322 subtitle_bitstream_filters= NULL;
3324 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3326 if(subtitle_codec_tag)
3327 subtitle_enc->codec_tag= subtitle_codec_tag;
3329 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3330 subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3333 if (subtitle_language) {
3334 av_dict_set(&st->metadata, "language", subtitle_language, 0);
3335 av_freep(&subtitle_language);
3338 subtitle_disable = 0;
3342 /* arg format is "output-stream-index:streamid-value". */
3343 static int opt_streamid(const char *opt, const char *arg)
3349 av_strlcpy(idx_str, arg, sizeof(idx_str));
3350 p = strchr(idx_str, ':');
3353 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3358 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3359 streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3360 streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3364 static int copy_chapters(int infile, int outfile)
3366 AVFormatContext *is = input_files[infile].ctx;
3367 AVFormatContext *os = output_files[outfile].ctx;
3370 for (i = 0; i < is->nb_chapters; i++) {
3371 AVChapter *in_ch = is->chapters[i], *out_ch;
3372 int64_t ts_off = av_rescale_q(start_time - input_files[infile].ts_offset,
3373 AV_TIME_BASE_Q, in_ch->time_base);
3374 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
3375 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3378 if (in_ch->end < ts_off)
3380 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3383 out_ch = av_mallocz(sizeof(AVChapter));
3385 return AVERROR(ENOMEM);
3387 out_ch->id = in_ch->id;
3388 out_ch->time_base = in_ch->time_base;
3389 out_ch->start = FFMAX(0, in_ch->start - ts_off);
3390 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
3392 if (metadata_chapters_autocopy)
3393 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3396 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3398 return AVERROR(ENOMEM);
3399 os->chapters[os->nb_chapters - 1] = out_ch;
3404 static int read_avserver_streams(AVFormatContext *s, const char *filename)
3407 AVFormatContext *ic = NULL;
3409 err = avformat_open_input(&ic, filename, NULL, NULL);
3412 /* copy stream format */
3413 for(i=0;i<ic->nb_streams;i++) {
3418 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3419 ost = new_output_stream(s, codec->type);
3422 // FIXME: a more elegant solution is needed
3423 memcpy(st, ic->streams[i], sizeof(AVStream));
3425 avcodec_copy_context(st->codec, ic->streams[i]->codec);
3427 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3428 choose_sample_fmt(st, codec);
3429 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3430 choose_pixel_fmt(st, codec);
3433 av_close_input_file(ic);
3437 static void opt_output_file(const char *filename)
3439 AVFormatContext *oc;
3441 AVOutputFormat *file_oformat;
3445 if (!strcmp(filename, "-"))
3448 oc = avformat_alloc_context();
3450 print_error(filename, AVERROR(ENOMEM));
3454 if (last_asked_format) {
3455 file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3456 if (!file_oformat) {
3457 fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3460 last_asked_format = NULL;
3462 file_oformat = av_guess_format(NULL, filename, NULL);
3463 if (!file_oformat) {
3464 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3470 oc->oformat = file_oformat;
3471 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3473 if (!strcmp(file_oformat->name, "ffm") &&
3474 av_strstart(filename, "http:", NULL)) {
3475 /* special case for files sent to avserver: we get the stream
3476 parameters from avserver */
3477 int err = read_avserver_streams(oc, filename);
3479 print_error(filename, err);
3482 } else if (!nb_stream_maps) {
3483 /* pick the "best" stream of each type */
3484 #define NEW_STREAM(type, index)\
3486 ost = new_ ## type ## _stream(oc);\
3487 ost->source_index = index;\
3488 ost->sync_ist = &input_streams[index];\
3489 input_streams[index].discard = 0;\
3492 /* video: highest resolution */
3493 if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3494 int area = 0, idx = -1;
3495 for (i = 0; i < nb_input_streams; i++) {
3496 ist = &input_streams[i];
3497 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3498 ist->st->codec->width * ist->st->codec->height > area) {
3499 area = ist->st->codec->width * ist->st->codec->height;
3503 NEW_STREAM(video, idx);
3506 /* audio: most channels */
3507 if (!audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3508 int channels = 0, idx = -1;
3509 for (i = 0; i < nb_input_streams; i++) {
3510 ist = &input_streams[i];
3511 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3512 ist->st->codec->channels > channels) {
3513 channels = ist->st->codec->channels;
3517 NEW_STREAM(audio, idx);
3520 /* subtitles: pick first */
3521 if (!subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3522 for (i = 0; i < nb_input_streams; i++)
3523 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3524 NEW_STREAM(subtitle, i);
3528 /* do something with data? */
3530 for (i = 0; i < nb_stream_maps; i++) {
3531 StreamMap *map = &stream_maps[i];
3536 ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3537 switch (ist->st->codec->codec_type) {
3538 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(oc); break;
3539 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(oc); break;
3540 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(oc); break;
3541 case AVMEDIA_TYPE_DATA: ost = new_data_stream(oc); break;
3543 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3544 map->file_index, map->stream_index);
3548 ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3549 ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3550 map->sync_stream_index];
3555 av_dict_copy(&oc->metadata, metadata, 0);
3556 av_dict_free(&metadata);
3559 output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
3560 output_files[nb_output_files - 1].ctx = oc;
3561 output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
3562 av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
3564 /* check filename in case of an image number is expected */
3565 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3566 if (!av_filename_number_test(oc->filename)) {
3567 print_error(oc->filename, AVERROR(EINVAL));
3572 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3573 /* test if it already exists to avoid loosing precious files */
3574 if (!file_overwrite &&
3575 (strchr(filename, ':') == NULL ||
3576 filename[1] == ':' ||
3577 av_strstart(filename, "file:", NULL))) {
3578 if (avio_check(filename, 0) == 0) {
3580 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3582 if (!read_yesno()) {
3583 fprintf(stderr, "Not overwriting - exiting\n");
3588 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3595 if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
3596 print_error(filename, err);
3601 oc->preload= (int)(mux_preload*AV_TIME_BASE);
3602 oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3603 oc->flags |= AVFMT_FLAG_NONBLOCK;
3606 if (chapters_input_file >= nb_input_files) {
3607 if (chapters_input_file == INT_MAX) {
3608 /* copy chapters from the first input file that has them*/
3609 chapters_input_file = -1;
3610 for (i = 0; i < nb_input_files; i++)
3611 if (input_files[i].ctx->nb_chapters) {
3612 chapters_input_file = i;
3616 av_log(NULL, AV_LOG_ERROR, "Invalid input file index %d in chapter mapping.\n",
3617 chapters_input_file);
3621 if (chapters_input_file >= 0)
3622 copy_chapters(chapters_input_file, nb_output_files - 1);
3625 for (i = 0; i < nb_meta_data_maps; i++) {
3626 AVFormatContext *files[2];
3627 AVDictionary **meta[2];
3630 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3631 if ((index) < 0 || (index) >= (nb_elems)) {\
3632 av_log(NULL, AV_LOG_ERROR, "Invalid %s index %d while processing metadata maps\n",\
3637 int in_file_index = meta_data_maps[i][1].file;
3638 if (in_file_index < 0)
3640 METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
3643 files[1] = input_files[in_file_index].ctx;
3645 for (j = 0; j < 2; j++) {
3646 MetadataMap *map = &meta_data_maps[i][j];
3648 switch (map->type) {
3650 meta[j] = &files[j]->metadata;
3653 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
3654 meta[j] = &files[j]->streams[map->index]->metadata;
3657 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
3658 meta[j] = &files[j]->chapters[map->index]->metadata;