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 #define MAX_FILES 100
102 static const char *last_asked_format = NULL;
103 static double *ts_scale;
104 static int nb_ts_scale;
106 static AVFormatContext *output_files[MAX_FILES];
107 static AVDictionary *output_opts[MAX_FILES];
108 static int nb_output_files = 0;
110 static StreamMap *stream_maps = NULL;
111 static int nb_stream_maps;
113 static AVDictionary *codec_names;
115 /* first item specifies output metadata, second is input */
116 static MetadataMap (*meta_data_maps)[2] = NULL;
117 static int nb_meta_data_maps;
118 static int metadata_global_autocopy = 1;
119 static int metadata_streams_autocopy = 1;
120 static int metadata_chapters_autocopy = 1;
122 static int chapters_input_file = INT_MAX;
124 /* indexed by output file stream index */
125 static int *streamid_map = NULL;
126 static int nb_streamid_map = 0;
128 static int frame_width = 0;
129 static int frame_height = 0;
130 static float frame_aspect_ratio = 0;
131 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
132 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
133 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
134 static AVRational frame_rate;
135 static float video_qscale = 0;
136 static uint16_t *intra_matrix = NULL;
137 static uint16_t *inter_matrix = NULL;
138 static const char *video_rc_override_string=NULL;
139 static int video_disable = 0;
140 static int video_discard = 0;
141 static unsigned int video_codec_tag = 0;
142 static char *video_language = NULL;
143 static int same_quant = 0;
144 static int do_deinterlace = 0;
145 static int top_field_first = -1;
146 static int me_threshold = 0;
147 static int intra_dc_precision = 8;
148 static int qp_hist = 0;
150 static char *vfilters = NULL;
153 static int intra_only = 0;
154 static int audio_sample_rate = 0;
155 #define QSCALE_NONE -99999
156 static float audio_qscale = QSCALE_NONE;
157 static int audio_disable = 0;
158 static int audio_channels = 0;
159 static unsigned int audio_codec_tag = 0;
160 static char *audio_language = NULL;
162 static int subtitle_disable = 0;
163 static char *subtitle_language = NULL;
164 static unsigned int subtitle_codec_tag = 0;
166 static int data_disable = 0;
167 static unsigned int data_codec_tag = 0;
169 static float mux_preload= 0.5;
170 static float mux_max_delay= 0.7;
172 static int64_t recording_time = INT64_MAX;
173 static int64_t start_time = 0;
174 static int64_t input_ts_offset = 0;
175 static int file_overwrite = 0;
176 static AVDictionary *metadata;
177 static int do_benchmark = 0;
178 static int do_hex_dump = 0;
179 static int do_pkt_dump = 0;
180 static int do_psnr = 0;
181 static int do_pass = 0;
182 static char *pass_logfilename_prefix = NULL;
183 static int video_sync_method= -1;
184 static int audio_sync_method= 0;
185 static float audio_drift_threshold= 0.1;
186 static int copy_ts= 0;
188 static int opt_shortest = 0;
189 static char *vstats_filename;
190 static FILE *vstats_file;
191 static int opt_programid = 0;
192 static int copy_initial_nonkeyframes = 0;
194 static int rate_emu = 0;
196 static int audio_volume = 256;
198 static int exit_on_error = 0;
199 static int using_stdin = 0;
200 static int verbose = 1;
201 static int thread_count= 1;
202 static int64_t video_size = 0;
203 static int64_t audio_size = 0;
204 static int64_t extra_size = 0;
205 static int nb_frames_dup = 0;
206 static int nb_frames_drop = 0;
207 static int input_sync;
208 static uint64_t limit_filesize = 0;
209 static int force_fps = 0;
210 static char *forced_key_frames = NULL;
212 static float dts_delta_threshold = 10;
214 static int64_t timer_start;
216 static uint8_t *audio_buf;
217 static uint8_t *audio_out;
218 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
220 static short *samples;
222 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
223 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
224 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
226 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
230 typedef struct OutputStream {
231 int file_index; /* file index */
232 int index; /* stream index in the output file */
233 int source_index; /* InputStream index */
234 AVStream *st; /* stream in the output file */
235 int encoding_needed; /* true if encoding needed for this stream */
237 /* input pts and corresponding output pts
239 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
240 struct InputStream *sync_ist; /* input stream to sync against */
241 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
242 AVBitStreamFilterContext *bitstream_filters;
247 AVFrame pict_tmp; /* temporary image for resampling */
248 struct SwsContext *img_resample_ctx; /* for image resampling */
251 int resample_pix_fmt;
252 AVRational frame_rate;
254 float frame_aspect_ratio;
256 /* forced key frames */
257 int64_t *forced_kf_pts;
263 ReSampleContext *resample; /* for audio resampling */
264 int resample_sample_fmt;
265 int resample_channels;
266 int resample_sample_rate;
268 AVAudioConvert *reformat_ctx;
269 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
273 AVFilterContext *output_video_filter;
274 AVFilterContext *input_video_filter;
275 AVFilterBufferRef *picref;
277 AVFilterGraph *graph;
284 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
285 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
287 typedef struct InputStream {
290 int discard; /* true if stream data should be discarded */
291 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
294 int64_t start; /* time when read started */
295 int64_t next_pts; /* synthetic pts for cases where pkt.pts
297 int64_t pts; /* current pts */
298 PtsCorrectionContext pts_ctx;
300 int is_start; /* is 1 at the start and after a discontinuity */
301 int showed_multi_packet_warning;
302 int is_past_recording_time;
306 typedef struct InputFile {
307 AVFormatContext *ctx;
308 int eof_reached; /* true if eof reached */
309 int ist_index; /* index of first stream in ist_table */
310 int buffer_size; /* current total buffer size */
314 static InputStream *input_streams = NULL;
315 static int nb_input_streams = 0;
316 static InputFile *input_files = NULL;
317 static int nb_input_files = 0;
321 static int configure_video_filters(InputStream *ist, OutputStream *ost)
323 AVFilterContext *last_filter, *filter;
324 /** filter graph containing all filters including input & output */
325 AVCodecContext *codec = ost->st->codec;
326 AVCodecContext *icodec = ist->st->codec;
327 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
328 AVRational sample_aspect_ratio;
332 ost->graph = avfilter_graph_alloc();
334 if (ist->st->sample_aspect_ratio.num){
335 sample_aspect_ratio = ist->st->sample_aspect_ratio;
337 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
339 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
340 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
341 sample_aspect_ratio.num, sample_aspect_ratio.den);
343 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
344 "src", args, NULL, ost->graph);
347 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
348 "out", NULL, &ffsink_ctx, ost->graph);
351 last_filter = ost->input_video_filter;
353 if (codec->width != icodec->width || codec->height != icodec->height) {
354 snprintf(args, 255, "%d:%d:flags=0x%X",
358 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
359 NULL, args, NULL, ost->graph)) < 0)
361 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
363 last_filter = filter;
366 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
367 ost->graph->scale_sws_opts = av_strdup(args);
370 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
371 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
373 outputs->name = av_strdup("in");
374 outputs->filter_ctx = last_filter;
375 outputs->pad_idx = 0;
376 outputs->next = NULL;
378 inputs->name = av_strdup("out");
379 inputs->filter_ctx = ost->output_video_filter;
383 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
385 av_freep(&ost->avfilter);
387 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
391 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
394 codec->width = ost->output_video_filter->inputs[0]->w;
395 codec->height = ost->output_video_filter->inputs[0]->h;
396 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
397 ost->frame_aspect_ratio ? // overriden by the -aspect cli option
398 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
399 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
403 #endif /* CONFIG_AVFILTER */
405 static void term_exit(void)
407 av_log(NULL, AV_LOG_QUIET, "");
410 static volatile int received_sigterm = 0;
411 static volatile int received_nb_signals = 0;
414 sigterm_handler(int sig)
416 received_sigterm = sig;
417 received_nb_signals++;
421 static void term_init(void)
423 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
424 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
426 signal(SIGXCPU, sigterm_handler);
430 static int decode_interrupt_cb(void)
432 return received_nb_signals > 1;
435 static int exit_program(int ret)
440 for(i=0;i<nb_output_files;i++) {
441 AVFormatContext *s = output_files[i];
442 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
444 avformat_free_context(s);
445 av_free(output_streams_for_file[i]);
446 av_dict_free(&output_opts[i]);
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);
470 allocated_audio_buf_size= allocated_audio_out_size= 0;
477 if (received_sigterm) {
479 "Received signal %d: terminating.\n",
480 (int) received_sigterm);
484 exit(ret); /* not all OS-es handle main() return value */
488 static void assert_avoptions(AVDictionary *m)
490 AVDictionaryEntry *t;
491 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
492 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
497 static void assert_codec_experimental(AVCodecContext *c, int encoder)
499 const char *codec_string = encoder ? "encoder" : "decoder";
501 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
502 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
503 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
504 "results.\nAdd '-strict experimental' if you want to use it.\n",
505 codec_string, c->codec->name);
506 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
507 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
508 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
509 codec_string, codec->name);
514 /* similar to ff_dynarray_add() and av_fast_realloc() */
515 static void *grow_array(void *array, int elem_size, int *size, int new_size)
517 if (new_size >= INT_MAX / elem_size) {
518 fprintf(stderr, "Array too big.\n");
521 if (*size < new_size) {
522 uint8_t *tmp = av_realloc(array, new_size*elem_size);
524 fprintf(stderr, "Could not alloc buffer.\n");
527 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
534 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
536 if(codec && codec->sample_fmts){
537 const enum AVSampleFormat *p= codec->sample_fmts;
539 if(*p == st->codec->sample_fmt)
543 av_log(NULL, AV_LOG_WARNING,
544 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
545 av_get_sample_fmt_name(st->codec->sample_fmt),
547 av_get_sample_fmt_name(codec->sample_fmts[0]));
548 st->codec->sample_fmt = codec->sample_fmts[0];
554 * Update the requested input sample format based on the output sample format.
555 * This is currently only used to request float output from decoders which
556 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
557 * Ideally this will be removed in the future when decoders do not do format
558 * conversion and only output in their native format.
560 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
563 /* if sample formats match or a decoder sample format has already been
564 requested, just return */
565 if (enc->sample_fmt == dec->sample_fmt ||
566 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
569 /* if decoder supports more than one output format */
570 if (dec_codec && dec_codec->sample_fmts &&
571 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
572 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
573 const enum AVSampleFormat *p;
574 int min_dec = -1, min_inc = -1;
576 /* find a matching sample format in the encoder */
577 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
578 if (*p == enc->sample_fmt) {
579 dec->request_sample_fmt = *p;
581 } else if (*p > enc->sample_fmt) {
582 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
584 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
587 /* if none match, provide the one that matches quality closest */
588 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
589 enc->sample_fmt - min_dec;
593 static void choose_sample_rate(AVStream *st, AVCodec *codec)
595 if(codec && codec->supported_samplerates){
596 const int *p= codec->supported_samplerates;
598 int best_dist=INT_MAX;
600 int dist= abs(st->codec->sample_rate - *p);
601 if(dist < best_dist){
607 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
609 st->codec->sample_rate= best;
613 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
615 if(codec && codec->pix_fmts){
616 const enum PixelFormat *p= codec->pix_fmts;
617 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
618 if(st->codec->codec_id==CODEC_ID_MJPEG){
619 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
620 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
621 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};
625 if(*p == st->codec->pix_fmt)
629 if(st->codec->pix_fmt != PIX_FMT_NONE)
630 av_log(NULL, AV_LOG_WARNING,
631 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
632 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
634 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
635 st->codec->pix_fmt = codec->pix_fmts[0];
641 get_sync_ipts(const OutputStream *ost)
643 const InputStream *ist = ost->sync_ist;
644 return (double)(ist->pts - start_time)/AV_TIME_BASE;
647 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
651 AVPacket new_pkt= *pkt;
652 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
653 &new_pkt.data, &new_pkt.size,
654 pkt->data, pkt->size,
655 pkt->flags & AV_PKT_FLAG_KEY);
658 new_pkt.destruct= av_destruct_packet;
660 fprintf(stderr, "%s failed for stream %d, codec %s",
661 bsfc->filter->name, pkt->stream_index,
662 avctx->codec ? avctx->codec->name : "copy");
672 ret= av_interleaved_write_frame(s, pkt);
674 print_error("av_interleaved_write_frame()", ret);
679 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
681 static void do_audio_out(AVFormatContext *s,
684 unsigned char *buf, int size)
687 int64_t audio_out_size, audio_buf_size;
688 int64_t allocated_for_size= size;
690 int size_out, frame_bytes, ret, resample_changed;
691 AVCodecContext *enc= ost->st->codec;
692 AVCodecContext *dec= ist->st->codec;
693 int osize = av_get_bytes_per_sample(enc->sample_fmt);
694 int isize = av_get_bytes_per_sample(dec->sample_fmt);
695 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
698 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
699 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
700 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
701 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
702 audio_buf_size*= osize*enc->channels;
704 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
705 if(coded_bps > 8*osize)
706 audio_out_size= audio_out_size * coded_bps / (8*osize);
707 audio_out_size += FF_MIN_BUFFER_SIZE;
709 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
710 fprintf(stderr, "Buffer sizes too large\n");
714 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
715 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
716 if (!audio_buf || !audio_out){
717 fprintf(stderr, "Out of memory in do_audio_out\n");
721 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
722 ost->audio_resample = 1;
724 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
725 ost->resample_channels != dec->channels ||
726 ost->resample_sample_rate != dec->sample_rate;
728 if ((ost->audio_resample && !ost->resample) || resample_changed) {
729 if (resample_changed) {
730 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",
731 ist->file_index, ist->st->index,
732 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
733 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
734 ost->resample_sample_fmt = dec->sample_fmt;
735 ost->resample_channels = dec->channels;
736 ost->resample_sample_rate = dec->sample_rate;
738 audio_resample_close(ost->resample);
740 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
741 if (audio_sync_method <= 1 &&
742 ost->resample_sample_fmt == enc->sample_fmt &&
743 ost->resample_channels == enc->channels &&
744 ost->resample_sample_rate == enc->sample_rate) {
745 ost->resample = NULL;
746 ost->audio_resample = 0;
747 } else if (ost->audio_resample) {
748 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
749 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
750 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
751 enc->sample_rate, dec->sample_rate,
752 enc->sample_fmt, dec->sample_fmt,
754 if (!ost->resample) {
755 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
756 dec->channels, dec->sample_rate,
757 enc->channels, enc->sample_rate);
763 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
764 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
765 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
766 if (ost->reformat_ctx)
767 av_audio_convert_free(ost->reformat_ctx);
768 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
769 dec->sample_fmt, 1, NULL, 0);
770 if (!ost->reformat_ctx) {
771 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
772 av_get_sample_fmt_name(dec->sample_fmt),
773 av_get_sample_fmt_name(enc->sample_fmt));
776 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
779 if(audio_sync_method){
780 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
781 - av_fifo_size(ost->fifo)/(enc->channels * 2);
782 double idelta= delta*dec->sample_rate / enc->sample_rate;
783 int byte_delta= ((int)idelta)*2*dec->channels;
785 //FIXME resample delay
786 if(fabs(delta) > 50){
787 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
789 byte_delta= FFMAX(byte_delta, -size);
793 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
798 static uint8_t *input_tmp= NULL;
799 input_tmp= av_realloc(input_tmp, byte_delta + size);
801 if(byte_delta > allocated_for_size - size){
802 allocated_for_size= byte_delta + (int64_t)size;
807 memset(input_tmp, 0, byte_delta);
808 memcpy(input_tmp + byte_delta, buf, size);
812 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
814 }else if(audio_sync_method>1){
815 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
816 av_assert0(ost->audio_resample);
818 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
819 // 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));
820 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
824 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
825 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
827 if (ost->audio_resample) {
829 size_out = audio_resample(ost->resample,
830 (short *)buftmp, (short *)buf,
831 size / (dec->channels * isize));
832 size_out = size_out * enc->channels * osize;
838 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
839 const void *ibuf[6]= {buftmp};
840 void *obuf[6]= {audio_buf};
841 int istride[6]= {isize};
842 int ostride[6]= {osize};
843 int len= size_out/istride[0];
844 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
845 printf("av_audio_convert() failed\n");
851 size_out = len*osize;
854 /* now encode as many frames as possible */
855 if (enc->frame_size > 1) {
856 /* output resampled raw samples */
857 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
858 fprintf(stderr, "av_fifo_realloc2() failed\n");
861 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
863 frame_bytes = enc->frame_size * osize * enc->channels;
865 while (av_fifo_size(ost->fifo) >= frame_bytes) {
867 av_init_packet(&pkt);
869 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
871 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
873 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
876 fprintf(stderr, "Audio encoding failed\n");
880 pkt.stream_index= ost->index;
883 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
884 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
885 pkt.flags |= AV_PKT_FLAG_KEY;
886 write_frame(s, &pkt, enc, ost->bitstream_filters);
888 ost->sync_opts += enc->frame_size;
892 av_init_packet(&pkt);
894 ost->sync_opts += size_out / (osize * enc->channels);
896 /* output a pcm frame */
897 /* determine the size of the coded buffer */
900 size_out = size_out*coded_bps/8;
902 if(size_out > audio_out_size){
903 fprintf(stderr, "Internal error, buffer size too small\n");
907 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
908 ret = avcodec_encode_audio(enc, audio_out, size_out,
911 fprintf(stderr, "Audio encoding failed\n");
915 pkt.stream_index= ost->index;
918 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
919 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
920 pkt.flags |= AV_PKT_FLAG_KEY;
921 write_frame(s, &pkt, enc, ost->bitstream_filters);
925 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
929 AVPicture picture_tmp;
932 dec = ist->st->codec;
934 /* deinterlace : must be done before any resize */
935 if (do_deinterlace) {
938 /* create temporary picture */
939 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
940 buf = av_malloc(size);
944 picture2 = &picture_tmp;
945 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
947 if(avpicture_deinterlace(picture2, picture,
948 dec->pix_fmt, dec->width, dec->height) < 0) {
949 /* if error, do not deinterlace */
950 fprintf(stderr, "Deinterlacing failed\n");
959 if (picture != picture2)
960 *picture = *picture2;
964 /* we begin to correct av delay at this threshold */
965 #define AV_DELAY_MAX 0.100
967 static void do_subtitle_out(AVFormatContext *s,
973 static uint8_t *subtitle_out = NULL;
974 int subtitle_out_max_size = 1024 * 1024;
975 int subtitle_out_size, nb, i;
979 if (pts == AV_NOPTS_VALUE) {
980 fprintf(stderr, "Subtitle packets must have a pts\n");
986 enc = ost->st->codec;
989 subtitle_out = av_malloc(subtitle_out_max_size);
992 /* Note: DVB subtitle need one packet to draw them and one other
993 packet to clear them */
994 /* XXX: signal it in the codec context ? */
995 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1000 for(i = 0; i < nb; i++) {
1001 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1002 // start_display_time is required to be 0
1003 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1004 sub->end_display_time -= sub->start_display_time;
1005 sub->start_display_time = 0;
1006 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1007 subtitle_out_max_size, sub);
1008 if (subtitle_out_size < 0) {
1009 fprintf(stderr, "Subtitle encoding failed\n");
1013 av_init_packet(&pkt);
1014 pkt.stream_index = ost->index;
1015 pkt.data = subtitle_out;
1016 pkt.size = subtitle_out_size;
1017 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1018 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1019 /* XXX: the pts correction is handled here. Maybe handling
1020 it in the codec would be better */
1022 pkt.pts += 90 * sub->start_display_time;
1024 pkt.pts += 90 * sub->end_display_time;
1026 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1030 static int bit_buffer_size= 1024*256;
1031 static uint8_t *bit_buffer= NULL;
1033 static void do_video_out(AVFormatContext *s,
1036 AVFrame *in_picture,
1037 int *frame_size, float quality)
1039 int nb_frames, i, ret, resample_changed;
1040 AVFrame *final_picture, *formatted_picture;
1041 AVCodecContext *enc, *dec;
1044 enc = ost->st->codec;
1045 dec = ist->st->codec;
1047 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1049 /* by default, we output a single frame */
1054 if(video_sync_method){
1055 double vdelta = sync_ipts - ost->sync_opts;
1056 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1059 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1062 }else if(vdelta>0.6)
1063 ost->sync_opts= lrintf(sync_ipts);
1064 }else if (vdelta > 1.1)
1065 nb_frames = lrintf(vdelta);
1066 //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);
1067 if (nb_frames == 0){
1070 fprintf(stderr, "*** drop!\n");
1071 }else if (nb_frames > 1) {
1072 nb_frames_dup += nb_frames - 1;
1074 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1077 ost->sync_opts= lrintf(sync_ipts);
1079 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1083 formatted_picture = in_picture;
1084 final_picture = formatted_picture;
1086 resample_changed = ost->resample_width != dec->width ||
1087 ost->resample_height != dec->height ||
1088 ost->resample_pix_fmt != dec->pix_fmt;
1090 if (resample_changed) {
1091 av_log(NULL, AV_LOG_INFO,
1092 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1093 ist->file_index, ist->st->index,
1094 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1095 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1096 if(!ost->video_resample)
1097 ost->video_resample = 1;
1100 #if !CONFIG_AVFILTER
1101 if (ost->video_resample) {
1102 final_picture = &ost->pict_tmp;
1103 if (resample_changed) {
1104 /* initialize a new scaler context */
1105 sws_freeContext(ost->img_resample_ctx);
1106 ost->img_resample_ctx = sws_getContext(
1107 ist->st->codec->width,
1108 ist->st->codec->height,
1109 ist->st->codec->pix_fmt,
1110 ost->st->codec->width,
1111 ost->st->codec->height,
1112 ost->st->codec->pix_fmt,
1113 ost->sws_flags, NULL, NULL, NULL);
1114 if (ost->img_resample_ctx == NULL) {
1115 fprintf(stderr, "Cannot get resampling context\n");
1119 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1120 0, ost->resample_height, final_picture->data, final_picture->linesize);
1123 if (resample_changed) {
1124 avfilter_graph_free(&ost->graph);
1125 if (configure_video_filters(ist, ost)) {
1126 fprintf(stderr, "Error reinitialising filters!\n");
1131 if (resample_changed) {
1132 ost->resample_width = dec->width;
1133 ost->resample_height = dec->height;
1134 ost->resample_pix_fmt = dec->pix_fmt;
1137 /* duplicates frame if needed */
1138 for(i=0;i<nb_frames;i++) {
1140 av_init_packet(&pkt);
1141 pkt.stream_index= ost->index;
1143 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1144 /* raw pictures are written as AVPicture structure to
1145 avoid any copies. We support temorarily the older
1147 AVFrame* old_frame = enc->coded_frame;
1148 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1149 pkt.data= (uint8_t *)final_picture;
1150 pkt.size= sizeof(AVPicture);
1151 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1152 pkt.flags |= AV_PKT_FLAG_KEY;
1154 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1155 enc->coded_frame = old_frame;
1157 AVFrame big_picture;
1159 big_picture= *final_picture;
1160 /* better than nothing: use input picture interlaced
1162 big_picture.interlaced_frame = in_picture->interlaced_frame;
1163 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1164 if(top_field_first == -1)
1165 big_picture.top_field_first = in_picture->top_field_first;
1167 big_picture.top_field_first = top_field_first;
1170 /* handles same_quant here. This is not correct because it may
1171 not be a global option */
1172 big_picture.quality = quality;
1174 big_picture.pict_type = 0;
1175 // big_picture.pts = AV_NOPTS_VALUE;
1176 big_picture.pts= ost->sync_opts;
1177 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1178 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1179 if (ost->forced_kf_index < ost->forced_kf_count &&
1180 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1181 big_picture.pict_type = AV_PICTURE_TYPE_I;
1182 ost->forced_kf_index++;
1184 ret = avcodec_encode_video(enc,
1185 bit_buffer, bit_buffer_size,
1188 fprintf(stderr, "Video encoding failed\n");
1193 pkt.data= bit_buffer;
1195 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1196 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1197 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1198 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1199 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1201 if(enc->coded_frame->key_frame)
1202 pkt.flags |= AV_PKT_FLAG_KEY;
1203 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1206 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1207 // enc->frame_number-1, ret, enc->pict_type);
1208 /* if two pass, output log */
1209 if (ost->logfile && enc->stats_out) {
1210 fprintf(ost->logfile, "%s", enc->stats_out);
1215 ost->frame_number++;
1219 static double psnr(double d){
1220 return -10.0*log(d)/log(10.0);
1223 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1226 AVCodecContext *enc;
1228 double ti1, bitrate, avg_bitrate;
1230 /* this is executed just the first time do_video_stats is called */
1232 vstats_file = fopen(vstats_filename, "w");
1239 enc = ost->st->codec;
1240 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1241 frame_number = ost->frame_number;
1242 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1243 if (enc->flags&CODEC_FLAG_PSNR)
1244 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1246 fprintf(vstats_file,"f_size= %6d ", frame_size);
1247 /* compute pts value */
1248 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1252 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1253 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1254 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1255 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1256 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1260 static void print_report(AVFormatContext **output_files,
1261 OutputStream **ost_table, int nb_ostreams,
1266 AVFormatContext *oc;
1268 AVCodecContext *enc;
1269 int frame_number, vid, i;
1270 double bitrate, ti1, pts;
1271 static int64_t last_time = -1;
1272 static int qp_histogram[52];
1274 if (!is_last_report) {
1276 /* display the report every 0.5 seconds */
1277 cur_time = av_gettime();
1278 if (last_time == -1) {
1279 last_time = cur_time;
1282 if ((cur_time - last_time) < 500000)
1284 last_time = cur_time;
1288 oc = output_files[0];
1290 total_size = avio_size(oc->pb);
1291 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1292 total_size= avio_tell(oc->pb);
1297 for(i=0;i<nb_ostreams;i++) {
1300 enc = ost->st->codec;
1301 if (!ost->st->stream_copy && enc->coded_frame)
1302 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1303 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1304 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1306 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1307 float t = (av_gettime()-timer_start) / 1000000.0;
1309 frame_number = ost->frame_number;
1310 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1311 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1313 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1317 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1320 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1322 if (enc->flags&CODEC_FLAG_PSNR){
1324 double error, error_sum=0;
1325 double scale, scale_sum=0;
1326 char type[3]= {'Y','U','V'};
1327 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1330 error= enc->error[j];
1331 scale= enc->width*enc->height*255.0*255.0*frame_number;
1333 error= enc->coded_frame->error[j];
1334 scale= enc->width*enc->height*255.0*255.0;
1339 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1341 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1345 /* compute min output value */
1346 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1347 if ((pts < ti1) && (pts > 0))
1353 if (verbose > 0 || is_last_report) {
1354 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1356 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1357 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1358 (double)total_size / 1024, ti1, bitrate);
1360 if (nb_frames_dup || nb_frames_drop)
1361 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1362 nb_frames_dup, nb_frames_drop);
1365 fprintf(stderr, "%s \r", buf);
1370 if (is_last_report && verbose >= 0){
1371 int64_t raw= audio_size + video_size + extra_size;
1372 fprintf(stderr, "\n");
1373 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1377 100.0*(total_size - raw)/raw
1382 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1384 int fill_char = 0x00;
1385 if (sample_fmt == AV_SAMPLE_FMT_U8)
1387 memset(buf, fill_char, size);
1390 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1391 static int output_packet(InputStream *ist, int ist_index,
1392 OutputStream **ost_table, int nb_ostreams,
1393 const AVPacket *pkt)
1395 AVFormatContext *os;
1400 void *buffer_to_free = NULL;
1401 static unsigned int samples_size= 0;
1402 AVSubtitle subtitle, *subtitle_to_free;
1403 int64_t pkt_pts = AV_NOPTS_VALUE;
1405 int frame_available;
1410 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1412 if(ist->next_pts == AV_NOPTS_VALUE)
1413 ist->next_pts= ist->pts;
1417 av_init_packet(&avpkt);
1425 if(pkt->dts != AV_NOPTS_VALUE)
1426 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1427 if(pkt->pts != AV_NOPTS_VALUE)
1428 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1430 //while we have more to decode or while the decoder did output something on EOF
1431 while (avpkt.size > 0 || (!pkt && got_output)) {
1432 uint8_t *data_buf, *decoded_data_buf;
1433 int data_size, decoded_data_size;
1435 ist->pts= ist->next_pts;
1437 if(avpkt.size && avpkt.size != pkt->size &&
1438 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1439 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1440 ist->showed_multi_packet_warning=1;
1443 /* decode the packet if needed */
1444 decoded_data_buf = NULL; /* fail safe */
1445 decoded_data_size= 0;
1446 data_buf = avpkt.data;
1447 data_size = avpkt.size;
1448 subtitle_to_free = NULL;
1449 if (ist->decoding_needed) {
1450 switch(ist->st->codec->codec_type) {
1451 case AVMEDIA_TYPE_AUDIO:{
1452 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1453 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1455 samples= av_malloc(samples_size);
1457 decoded_data_size= samples_size;
1458 /* XXX: could avoid copy if PCM 16 bits with same
1459 endianness as CPU */
1460 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1467 got_output = decoded_data_size > 0;
1468 /* Some bug in mpeg audio decoder gives */
1469 /* decoded_data_size < 0, it seems they are overflows */
1471 /* no audio frame */
1474 decoded_data_buf = (uint8_t *)samples;
1475 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1476 (ist->st->codec->sample_rate * ist->st->codec->channels);
1478 case AVMEDIA_TYPE_VIDEO:
1479 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1480 /* XXX: allocate picture correctly */
1481 avcodec_get_frame_defaults(&picture);
1482 avpkt.pts = pkt_pts;
1483 avpkt.dts = ist->pts;
1484 pkt_pts = AV_NOPTS_VALUE;
1486 ret = avcodec_decode_video2(ist->st->codec,
1487 &picture, &got_output, &avpkt);
1488 quality = same_quant ? picture.quality : 0;
1492 /* no picture yet */
1493 goto discard_packet;
1495 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1496 if (ist->st->codec->time_base.num != 0) {
1497 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1498 ist->next_pts += ((int64_t)AV_TIME_BASE *
1499 ist->st->codec->time_base.num * ticks) /
1500 ist->st->codec->time_base.den;
1503 buffer_to_free = NULL;
1504 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1506 case AVMEDIA_TYPE_SUBTITLE:
1507 ret = avcodec_decode_subtitle2(ist->st->codec,
1508 &subtitle, &got_output, &avpkt);
1512 goto discard_packet;
1514 subtitle_to_free = &subtitle;
1521 switch(ist->st->codec->codec_type) {
1522 case AVMEDIA_TYPE_AUDIO:
1523 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1524 ist->st->codec->sample_rate;
1526 case AVMEDIA_TYPE_VIDEO:
1527 if (ist->st->codec->time_base.num != 0) {
1528 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1529 ist->next_pts += ((int64_t)AV_TIME_BASE *
1530 ist->st->codec->time_base.num * ticks) /
1531 ist->st->codec->time_base.den;
1540 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1541 for (i = 0; i < nb_ostreams; i++) {
1543 if (ost->input_video_filter && ost->source_index == ist_index) {
1545 if (ist->st->sample_aspect_ratio.num)
1546 sar = ist->st->sample_aspect_ratio;
1548 sar = ist->st->codec->sample_aspect_ratio;
1549 // add it to be filtered
1550 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1558 // preprocess audio (volume)
1559 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1560 if (audio_volume != 256) {
1563 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1564 int v = ((*volp) * audio_volume + 128) >> 8;
1565 if (v < -32768) v = -32768;
1566 if (v > 32767) v = 32767;
1572 /* frame rate emulation */
1574 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1575 int64_t now = av_gettime() - ist->start;
1579 /* if output time reached then transcode raw format,
1580 encode packets and output them */
1581 if (start_time == 0 || ist->pts >= start_time)
1582 for(i=0;i<nb_ostreams;i++) {
1586 if (ost->source_index == ist_index) {
1588 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1589 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1590 while (frame_available) {
1591 AVRational ist_pts_tb;
1592 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1593 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1595 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1597 os = output_files[ost->file_index];
1599 /* set the input output pts pairs */
1600 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1602 if (ost->encoding_needed) {
1603 av_assert0(ist->decoding_needed);
1604 switch(ost->st->codec->codec_type) {
1605 case AVMEDIA_TYPE_AUDIO:
1606 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1608 case AVMEDIA_TYPE_VIDEO:
1610 if (ost->picref->video && !ost->frame_aspect_ratio)
1611 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1613 do_video_out(os, ost, ist, &picture, &frame_size,
1614 same_quant ? quality : ost->st->codec->global_quality);
1615 if (vstats_filename && frame_size)
1616 do_video_stats(os, ost, frame_size);
1618 case AVMEDIA_TYPE_SUBTITLE:
1619 do_subtitle_out(os, ost, ist, &subtitle,
1626 AVFrame avframe; //FIXME/XXX remove this
1628 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1630 av_init_packet(&opkt);
1632 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1633 #if !CONFIG_AVFILTER
1639 /* no reencoding needed : output the packet directly */
1640 /* force the input stream PTS */
1642 avcodec_get_frame_defaults(&avframe);
1643 ost->st->codec->coded_frame= &avframe;
1644 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1646 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1647 audio_size += data_size;
1648 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1649 video_size += data_size;
1653 opkt.stream_index= ost->index;
1654 if(pkt->pts != AV_NOPTS_VALUE)
1655 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1657 opkt.pts= AV_NOPTS_VALUE;
1659 if (pkt->dts == AV_NOPTS_VALUE)
1660 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1662 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1663 opkt.dts -= ost_tb_start_time;
1665 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1666 opkt.flags= pkt->flags;
1668 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1669 if( ost->st->codec->codec_id != CODEC_ID_H264
1670 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1671 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1673 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1674 opkt.destruct= av_destruct_packet;
1676 opkt.data = data_buf;
1677 opkt.size = data_size;
1680 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1681 ost->st->codec->frame_number++;
1682 ost->frame_number++;
1683 av_free_packet(&opkt);
1687 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1688 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1690 avfilter_unref_buffer(ost->picref);
1696 av_free(buffer_to_free);
1697 /* XXX: allocate the subtitles in the codec ? */
1698 if (subtitle_to_free) {
1699 avsubtitle_free(subtitle_to_free);
1700 subtitle_to_free = NULL;
1707 for(i=0;i<nb_ostreams;i++) {
1709 if (ost->source_index == ist_index) {
1710 AVCodecContext *enc= ost->st->codec;
1711 os = output_files[ost->file_index];
1713 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1715 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1718 if (ost->encoding_needed) {
1722 av_init_packet(&pkt);
1723 pkt.stream_index= ost->index;
1725 switch(ost->st->codec->codec_type) {
1726 case AVMEDIA_TYPE_AUDIO:
1727 fifo_bytes = av_fifo_size(ost->fifo);
1729 /* encode any samples remaining in fifo */
1730 if (fifo_bytes > 0) {
1731 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1732 int fs_tmp = enc->frame_size;
1734 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1735 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1736 enc->frame_size = fifo_bytes / (osize * enc->channels);
1738 int frame_bytes = enc->frame_size*osize*enc->channels;
1739 if (allocated_audio_buf_size < frame_bytes)
1741 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1744 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1745 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1746 ost->st->time_base.num, enc->sample_rate);
1747 enc->frame_size = fs_tmp;
1750 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1753 fprintf(stderr, "Audio encoding failed\n");
1757 pkt.flags |= AV_PKT_FLAG_KEY;
1759 case AVMEDIA_TYPE_VIDEO:
1760 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1762 fprintf(stderr, "Video encoding failed\n");
1766 if(enc->coded_frame && enc->coded_frame->key_frame)
1767 pkt.flags |= AV_PKT_FLAG_KEY;
1768 if (ost->logfile && enc->stats_out) {
1769 fprintf(ost->logfile, "%s", enc->stats_out);
1778 pkt.data= bit_buffer;
1780 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1781 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1782 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1792 static void print_sdp(AVFormatContext **avc, int n)
1796 av_sdp_create(avc, n, sdp, sizeof(sdp));
1797 printf("SDP:\n%s\n", sdp);
1802 * The following code is the main loop of the file converter
1804 static int transcode(AVFormatContext **output_files,
1805 int nb_output_files,
1806 InputFile *input_files,
1809 int ret = 0, i, j, k, n, nb_ostreams = 0;
1810 AVFormatContext *is, *os;
1811 AVCodecContext *codec, *icodec;
1812 OutputStream *ost, **ost_table = NULL;
1816 uint8_t no_packet[MAX_FILES]={0};
1817 int no_packet_count=0;
1820 for (i = 0; i < nb_input_streams; i++)
1821 input_streams[i].start = av_gettime();
1823 /* output stream init */
1825 for(i=0;i<nb_output_files;i++) {
1826 os = output_files[i];
1827 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1828 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1829 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1830 ret = AVERROR(EINVAL);
1833 nb_ostreams += os->nb_streams;
1836 ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
1840 for(k=0;k<nb_output_files;k++) {
1841 os = output_files[k];
1842 for (i = 0; i < os->nb_streams; i++, n++)
1843 ost_table[n] = output_streams_for_file[k][i];
1846 /* for each output stream, we compute the right encoding parameters */
1847 for(i=0;i<nb_ostreams;i++) {
1849 os = output_files[ost->file_index];
1850 ist = &input_streams[ost->source_index];
1852 codec = ost->st->codec;
1853 icodec = ist->st->codec;
1855 ost->st->disposition = ist->st->disposition;
1856 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1857 codec->chroma_sample_location = icodec->chroma_sample_location;
1859 if (ost->st->stream_copy) {
1860 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1862 if (extra_size > INT_MAX)
1865 /* if stream_copy is selected, no need to decode or encode */
1866 codec->codec_id = icodec->codec_id;
1867 codec->codec_type = icodec->codec_type;
1869 if(!codec->codec_tag){
1870 if( !os->oformat->codec_tag
1871 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1872 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1873 codec->codec_tag = icodec->codec_tag;
1876 codec->bit_rate = icodec->bit_rate;
1877 codec->rc_max_rate = icodec->rc_max_rate;
1878 codec->rc_buffer_size = icodec->rc_buffer_size;
1879 codec->extradata= av_mallocz(extra_size);
1880 if (!codec->extradata)
1882 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1883 codec->extradata_size= icodec->extradata_size;
1884 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){
1885 codec->time_base = icodec->time_base;
1886 codec->time_base.num *= icodec->ticks_per_frame;
1887 av_reduce(&codec->time_base.num, &codec->time_base.den,
1888 codec->time_base.num, codec->time_base.den, INT_MAX);
1890 codec->time_base = ist->st->time_base;
1891 switch(codec->codec_type) {
1892 case AVMEDIA_TYPE_AUDIO:
1893 if(audio_volume != 256) {
1894 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1897 codec->channel_layout = icodec->channel_layout;
1898 codec->sample_rate = icodec->sample_rate;
1899 codec->channels = icodec->channels;
1900 codec->frame_size = icodec->frame_size;
1901 codec->audio_service_type = icodec->audio_service_type;
1902 codec->block_align= icodec->block_align;
1903 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1904 codec->block_align= 0;
1905 if(codec->codec_id == CODEC_ID_AC3)
1906 codec->block_align= 0;
1908 case AVMEDIA_TYPE_VIDEO:
1909 codec->pix_fmt = icodec->pix_fmt;
1910 codec->width = icodec->width;
1911 codec->height = icodec->height;
1912 codec->has_b_frames = icodec->has_b_frames;
1913 if (!codec->sample_aspect_ratio.num) {
1914 codec->sample_aspect_ratio =
1915 ost->st->sample_aspect_ratio =
1916 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1917 ist->st->codec->sample_aspect_ratio.num ?
1918 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1921 case AVMEDIA_TYPE_SUBTITLE:
1922 codec->width = icodec->width;
1923 codec->height = icodec->height;
1925 case AVMEDIA_TYPE_DATA:
1932 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1933 switch(codec->codec_type) {
1934 case AVMEDIA_TYPE_AUDIO:
1935 ost->fifo= av_fifo_alloc(1024);
1938 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
1939 if (!codec->sample_rate) {
1940 codec->sample_rate = icodec->sample_rate;
1942 codec->sample_rate >>= icodec->lowres;
1944 choose_sample_rate(ost->st, ost->enc);
1945 codec->time_base = (AVRational){1, codec->sample_rate};
1946 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
1947 codec->sample_fmt = icodec->sample_fmt;
1948 choose_sample_fmt(ost->st, ost->enc);
1949 if (!codec->channels)
1950 codec->channels = icodec->channels;
1951 codec->channel_layout = icodec->channel_layout;
1952 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
1953 codec->channel_layout = 0;
1954 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1955 icodec->request_channels = codec->channels;
1956 ist->decoding_needed = 1;
1957 ost->encoding_needed = 1;
1958 ost->resample_sample_fmt = icodec->sample_fmt;
1959 ost->resample_sample_rate = icodec->sample_rate;
1960 ost->resample_channels = icodec->channels;
1962 case AVMEDIA_TYPE_VIDEO:
1963 if (codec->pix_fmt == PIX_FMT_NONE)
1964 codec->pix_fmt = icodec->pix_fmt;
1965 choose_pixel_fmt(ost->st, ost->enc);
1967 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
1968 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
1972 if (!codec->width || !codec->height) {
1973 codec->width = icodec->width;
1974 codec->height = icodec->height;
1977 ost->video_resample = codec->width != icodec->width ||
1978 codec->height != icodec->height ||
1979 codec->pix_fmt != icodec->pix_fmt;
1980 if (ost->video_resample) {
1981 #if !CONFIG_AVFILTER
1982 avcodec_get_frame_defaults(&ost->pict_tmp);
1983 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1984 codec->width, codec->height)) {
1985 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1988 ost->img_resample_ctx = sws_getContext(
1995 ost->sws_flags, NULL, NULL, NULL);
1996 if (ost->img_resample_ctx == NULL) {
1997 fprintf(stderr, "Cannot get resampling context\n");
2001 codec->bits_per_raw_sample= 0;
2004 ost->resample_height = icodec->height;
2005 ost->resample_width = icodec->width;
2006 ost->resample_pix_fmt= icodec->pix_fmt;
2007 ost->encoding_needed = 1;
2008 ist->decoding_needed = 1;
2010 if (!ost->frame_rate.num)
2011 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2012 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2013 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2014 ost->frame_rate = ost->enc->supported_framerates[idx];
2016 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2019 if (configure_video_filters(ist, ost)) {
2020 fprintf(stderr, "Error opening filters!\n");
2025 case AVMEDIA_TYPE_SUBTITLE:
2026 ost->encoding_needed = 1;
2027 ist->decoding_needed = 1;
2034 if (ost->encoding_needed &&
2035 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2036 char logfilename[1024];
2039 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2040 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2042 if (codec->flags & CODEC_FLAG_PASS1) {
2043 f = fopen(logfilename, "wb");
2045 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2051 size_t logbuffer_size;
2052 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2053 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2056 codec->stats_in = logbuffer;
2060 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2061 int size= codec->width * codec->height;
2062 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2067 bit_buffer = av_malloc(bit_buffer_size);
2069 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2071 ret = AVERROR(ENOMEM);
2075 /* open each encoder */
2076 for(i=0;i<nb_ostreams;i++) {
2078 if (ost->encoding_needed) {
2079 AVCodec *codec = ost->enc;
2080 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2082 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2083 ost->st->codec->codec_id, ost->file_index, ost->index);
2084 ret = AVERROR(EINVAL);
2087 if (dec->subtitle_header) {
2088 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2089 if (!ost->st->codec->subtitle_header) {
2090 ret = AVERROR(ENOMEM);
2093 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2094 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2096 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2097 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2098 ost->file_index, ost->index);
2099 ret = AVERROR(EINVAL);
2102 assert_codec_experimental(ost->st->codec, 1);
2103 assert_avoptions(ost->opts);
2104 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2105 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2106 "It takes bits/s as argument, not kbits/s\n");
2107 extra_size += ost->st->codec->extradata_size;
2111 /* open each decoder */
2112 for (i = 0; i < nb_input_streams; i++) {
2113 ist = &input_streams[i];
2114 if (ist->decoding_needed) {
2115 AVCodec *codec = ist->dec;
2117 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2119 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2120 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2121 ret = AVERROR(EINVAL);
2125 /* update requested sample format for the decoder based on the
2126 corresponding encoder sample format */
2127 for (j = 0; j < nb_ostreams; j++) {
2129 if (ost->source_index == i) {
2130 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2135 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2136 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2137 ist->file_index, ist->st->index);
2138 ret = AVERROR(EINVAL);
2141 assert_codec_experimental(ist->st->codec, 0);
2142 assert_avoptions(ost->opts);
2147 for (i = 0; i < nb_input_streams; i++) {
2149 ist = &input_streams[i];
2151 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2152 ist->next_pts = AV_NOPTS_VALUE;
2153 init_pts_correction(&ist->pts_ctx);
2157 /* open files and write file headers */
2158 for(i=0;i<nb_output_files;i++) {
2159 os = output_files[i];
2160 if (avformat_write_header(os, &output_opts[i]) < 0) {
2161 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2162 ret = AVERROR(EINVAL);
2165 assert_avoptions(output_opts[i]);
2166 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2172 /* dump the file output parameters - cannot be done before in case
2174 for(i=0;i<nb_output_files;i++) {
2175 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2178 /* dump the stream mapping */
2180 fprintf(stderr, "Stream mapping:\n");
2181 for(i=0;i<nb_ostreams;i++) {
2183 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2184 input_streams[ost->source_index].file_index,
2185 input_streams[ost->source_index].st->index,
2188 if (ost->sync_ist != &input_streams[ost->source_index])
2189 fprintf(stderr, " [sync #%d.%d]",
2190 ost->sync_ist->file_index,
2191 ost->sync_ist->st->index);
2192 if (ost->st->stream_copy)
2193 fprintf(stderr, " (copy)");
2194 fprintf(stderr, "\n");
2199 fprintf(stderr, "%s\n", error);
2204 print_sdp(output_files, nb_output_files);
2208 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2211 timer_start = av_gettime();
2213 for(; received_sigterm == 0;) {
2214 int file_index, ist_index;
2223 /* select the stream that we must read now by looking at the
2224 smallest output pts */
2226 for(i=0;i<nb_ostreams;i++) {
2229 os = output_files[ost->file_index];
2230 ist = &input_streams[ost->source_index];
2231 if(ist->is_past_recording_time || no_packet[ist->file_index])
2233 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2234 ipts = (double)ist->pts;
2235 if (!input_files[ist->file_index].eof_reached){
2236 if(ipts < ipts_min) {
2238 if(input_sync ) file_index = ist->file_index;
2240 if(opts < opts_min) {
2242 if(!input_sync) file_index = ist->file_index;
2245 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2250 /* if none, if is finished */
2251 if (file_index < 0) {
2252 if(no_packet_count){
2254 memset(no_packet, 0, sizeof(no_packet));
2261 /* finish if limit size exhausted */
2262 if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2265 /* read a frame from it and output it in the fifo */
2266 is = input_files[file_index].ctx;
2267 ret= av_read_frame(is, &pkt);
2268 if(ret == AVERROR(EAGAIN)){
2269 no_packet[file_index]=1;
2274 input_files[file_index].eof_reached = 1;
2282 memset(no_packet, 0, sizeof(no_packet));
2285 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2286 is->streams[pkt.stream_index]);
2288 /* the following test is needed in case new streams appear
2289 dynamically in stream : we ignore them */
2290 if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2291 goto discard_packet;
2292 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2293 ist = &input_streams[ist_index];
2295 goto discard_packet;
2297 if (pkt.dts != AV_NOPTS_VALUE)
2298 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2299 if (pkt.pts != AV_NOPTS_VALUE)
2300 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2302 if (ist->ts_scale) {
2303 if(pkt.pts != AV_NOPTS_VALUE)
2304 pkt.pts *= ist->ts_scale;
2305 if(pkt.dts != AV_NOPTS_VALUE)
2306 pkt.dts *= ist->ts_scale;
2309 // 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);
2310 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2311 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2312 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2313 int64_t delta= pkt_dts - ist->next_pts;
2314 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2315 input_files[ist->file_index].ts_offset -= delta;
2317 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2318 delta, input_files[ist->file_index].ts_offset);
2319 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2320 if(pkt.pts != AV_NOPTS_VALUE)
2321 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2325 /* finish if recording time exhausted */
2326 if (recording_time != INT64_MAX &&
2327 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2328 ist->is_past_recording_time = 1;
2329 goto discard_packet;
2332 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2333 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2336 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2337 ist->file_index, ist->st->index);
2340 av_free_packet(&pkt);
2345 av_free_packet(&pkt);
2347 /* dump report by using the output first video and audio streams */
2348 print_report(output_files, ost_table, nb_ostreams, 0);
2351 /* at the end of stream, we must flush the decoder buffers */
2352 for (i = 0; i < nb_input_streams; i++) {
2353 ist = &input_streams[i];
2354 if (ist->decoding_needed) {
2355 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2361 /* write the trailer if needed and close file */
2362 for(i=0;i<nb_output_files;i++) {
2363 os = output_files[i];
2364 av_write_trailer(os);
2367 /* dump report by using the first video and audio streams */
2368 print_report(output_files, ost_table, nb_ostreams, 1);
2370 /* close each encoder */
2371 for(i=0;i<nb_ostreams;i++) {
2373 if (ost->encoding_needed) {
2374 av_freep(&ost->st->codec->stats_in);
2375 avcodec_close(ost->st->codec);
2378 avfilter_graph_free(&ost->graph);
2382 /* close each decoder */
2383 for (i = 0; i < nb_input_streams; i++) {
2384 ist = &input_streams[i];
2385 if (ist->decoding_needed) {
2386 avcodec_close(ist->st->codec);
2394 av_freep(&bit_buffer);
2397 for(i=0;i<nb_ostreams;i++) {
2400 if (ost->st->stream_copy)
2401 av_freep(&ost->st->codec->extradata);
2403 fclose(ost->logfile);
2404 ost->logfile = NULL;
2406 av_fifo_free(ost->fifo); /* works even if fifo is not
2407 initialized but set to zero */
2408 av_freep(&ost->st->codec->subtitle_header);
2409 av_free(ost->pict_tmp.data[0]);
2410 av_free(ost->forced_kf_pts);
2411 if (ost->video_resample)
2412 sws_freeContext(ost->img_resample_ctx);
2414 audio_resample_close(ost->resample);
2415 if (ost->reformat_ctx)
2416 av_audio_convert_free(ost->reformat_ctx);
2417 av_dict_free(&ost->opts);
2426 static int opt_format(const char *opt, const char *arg)
2428 last_asked_format = arg;
2432 static int opt_video_rc_override_string(const char *opt, const char *arg)
2434 video_rc_override_string = arg;
2438 static int opt_me_threshold(const char *opt, const char *arg)
2440 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2444 static int opt_verbose(const char *opt, const char *arg)
2446 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2450 static int opt_frame_rate(const char *opt, const char *arg)
2452 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2453 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2459 static int opt_frame_crop(const char *opt, const char *arg)
2461 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2462 return AVERROR(EINVAL);
2465 static int opt_frame_size(const char *opt, const char *arg)
2467 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2468 fprintf(stderr, "Incorrect frame size\n");
2469 return AVERROR(EINVAL);
2474 static int opt_pad(const char *opt, const char *arg) {
2475 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2479 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2481 if (strcmp(arg, "list")) {
2482 frame_pix_fmt = av_get_pix_fmt(arg);
2483 if (frame_pix_fmt == PIX_FMT_NONE) {
2484 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2485 return AVERROR(EINVAL);
2494 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2501 p = strchr(arg, ':');
2503 x = strtol(arg, &end, 10);
2505 y = strtol(end+1, &end, 10);
2507 ar = (double)x / (double)y;
2509 ar = strtod(arg, NULL);
2512 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2513 return AVERROR(EINVAL);
2515 frame_aspect_ratio = ar;
2519 static int opt_metadata(const char *opt, const char *arg)
2521 char *mid= strchr(arg, '=');
2524 fprintf(stderr, "Missing =\n");
2529 av_dict_set(&metadata, arg, mid, 0);
2534 static int opt_qscale(const char *opt, const char *arg)
2536 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2537 if (video_qscale == 0) {
2538 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2539 return AVERROR(EINVAL);
2544 static int opt_top_field_first(const char *opt, const char *arg)
2546 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2550 static int opt_thread_count(const char *opt, const char *arg)
2552 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2555 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2560 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2562 if (strcmp(arg, "list")) {
2563 audio_sample_fmt = av_get_sample_fmt(arg);
2564 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2565 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2566 return AVERROR(EINVAL);
2571 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2572 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2578 static int opt_audio_rate(const char *opt, const char *arg)
2580 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2584 static int opt_audio_channels(const char *opt, const char *arg)
2586 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2590 static int opt_codec(const char *opt, const char *arg)
2592 return av_dict_set(&codec_names, opt, arg, 0);
2595 static int opt_audio_codec(const char *opt, const char *arg)
2597 return opt_codec("codec:a", arg);
2600 static int opt_video_codec(const char *opt, const char *arg)
2602 return opt_codec("codec:v", arg);
2605 static int opt_subtitle_codec(const char *opt, const char *arg)
2607 return opt_codec("codec:s", arg);
2610 static int opt_data_codec(const char *opt, const char *arg)
2612 return opt_codec("codec:d", arg);
2615 static int opt_codec_tag(const char *opt, const char *arg)
2618 uint32_t *codec_tag;
2620 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2621 !strcmp(opt, "vtag") ? &video_codec_tag :
2622 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2626 *codec_tag = strtol(arg, &tail, 0);
2628 *codec_tag = AV_RL32(arg);
2633 static int opt_map(const char *opt, const char *arg)
2635 StreamMap *m = NULL;
2636 int i, negative = 0, file_idx;
2637 int sync_file_idx = -1, sync_stream_idx;
2645 map = av_strdup(arg);
2647 /* parse sync stream first, just pick first matching stream */
2648 if (sync = strchr(map, ',')) {
2650 sync_file_idx = strtol(sync + 1, &sync, 0);
2651 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2652 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2657 for (i = 0; i < input_files[sync_file_idx].ctx->nb_streams; i++)
2658 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2659 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2660 sync_stream_idx = i;
2663 if (i == input_files[sync_file_idx].ctx->nb_streams) {
2664 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2665 "match any streams.\n", arg);
2671 file_idx = strtol(map, &p, 0);
2672 if (file_idx >= nb_input_files || file_idx < 0) {
2673 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2677 /* disable some already defined maps */
2678 for (i = 0; i < nb_stream_maps; i++) {
2679 m = &stream_maps[i];
2680 if (check_stream_specifier(input_files[m->file_index].ctx,
2681 input_files[m->file_index].ctx->streams[m->stream_index],
2682 *p == ':' ? p + 1 : p) > 0)
2686 for (i = 0; i < input_files[file_idx].ctx->nb_streams; i++) {
2687 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2688 *p == ':' ? p + 1 : p) <= 0)
2690 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2691 m = &stream_maps[nb_stream_maps - 1];
2693 m->file_index = file_idx;
2694 m->stream_index = i;
2696 if (sync_file_idx >= 0) {
2697 m->sync_file_index = sync_file_idx;
2698 m->sync_stream_index = sync_stream_idx;
2700 m->sync_file_index = file_idx;
2701 m->sync_stream_index = i;
2706 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2714 static void parse_meta_type(char *arg, char *type, int *index)
2724 if (*(++arg) == ':')
2725 *index = strtol(++arg, NULL, 0);
2728 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2735 static int opt_map_metadata(const char *opt, const char *arg)
2737 MetadataMap *m, *m1;
2740 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2741 &nb_meta_data_maps, nb_meta_data_maps + 1);
2743 m = &meta_data_maps[nb_meta_data_maps - 1][1];
2744 m->file = strtol(arg, &p, 0);
2745 parse_meta_type(p, &m->type, &m->index);
2747 m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2748 if (p = strchr(opt, ':'))
2749 parse_meta_type(p, &m1->type, &m1->index);
2753 if (m->type == 'g' || m1->type == 'g')
2754 metadata_global_autocopy = 0;
2755 if (m->type == 's' || m1->type == 's')
2756 metadata_streams_autocopy = 0;
2757 if (m->type == 'c' || m1->type == 'c')
2758 metadata_chapters_autocopy = 0;
2763 static int opt_input_ts_scale(const char *opt, const char *arg)
2765 unsigned int stream;
2769 stream = strtol(arg, &p, 0);
2772 scale= strtod(p, &p);
2774 ts_scale = grow_array(ts_scale, sizeof(*ts_scale), &nb_ts_scale, stream + 1);
2775 ts_scale[stream] = scale;
2779 static int opt_recording_time(const char *opt, const char *arg)
2781 recording_time = parse_time_or_die(opt, arg, 1);
2785 static int opt_start_time(const char *opt, const char *arg)
2787 start_time = parse_time_or_die(opt, arg, 1);
2791 static int opt_input_ts_offset(const char *opt, const char *arg)
2793 input_ts_offset = parse_time_or_die(opt, arg, 1);
2797 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2799 const char *codec_string = encoder ? "encoder" : "decoder";
2803 return CODEC_ID_NONE;
2805 avcodec_find_encoder_by_name(name) :
2806 avcodec_find_decoder_by_name(name);
2808 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2811 if(codec->type != type) {
2812 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2818 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2820 AVDictionaryEntry *e = NULL;
2821 char *codec_name = NULL;
2824 while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2825 char *p = strchr(e->key, ':');
2827 if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2828 codec_name = e->value;
2835 st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2836 return avcodec_find_encoder(st->codec->codec_id);
2838 } else if (!strcmp(codec_name, "copy"))
2839 st->stream_copy = 1;
2841 st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2842 return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2843 avcodec_find_decoder_by_name(codec_name);
2849 static int opt_input_file(const char *opt, const char *filename)
2851 AVFormatContext *ic;
2852 AVInputFormat *file_iformat = NULL;
2853 int err, i, ret, rfps, rfps_base;
2856 AVDictionary **opts;
2857 int orig_nb_streams; // number of streams before avformat_find_stream_info
2859 if (last_asked_format) {
2860 if (!(file_iformat = av_find_input_format(last_asked_format))) {
2861 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2864 last_asked_format = NULL;
2867 if (!strcmp(filename, "-"))
2870 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2871 !strcmp(filename, "/dev/stdin");
2873 /* get default parameters from command line */
2874 ic = avformat_alloc_context();
2876 print_error(filename, AVERROR(ENOMEM));
2879 if (audio_sample_rate) {
2880 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2881 av_dict_set(&format_opts, "sample_rate", buf, 0);
2883 if (audio_channels) {
2884 snprintf(buf, sizeof(buf), "%d", audio_channels);
2885 av_dict_set(&format_opts, "channels", buf, 0);
2887 if (frame_rate.num) {
2888 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
2889 av_dict_set(&format_opts, "framerate", buf, 0);
2891 if (frame_width && frame_height) {
2892 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
2893 av_dict_set(&format_opts, "video_size", buf, 0);
2895 if (frame_pix_fmt != PIX_FMT_NONE)
2896 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
2898 ic->flags |= AVFMT_FLAG_NONBLOCK;
2900 /* open the input file with generic libav function */
2901 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2903 print_error(filename, err);
2906 assert_avoptions(format_opts);
2911 for(i=0; i<ic->nb_streams; i++){
2912 ic->streams[i]->discard= AVDISCARD_ALL;
2914 for(i=0; i<ic->nb_programs; i++){
2915 AVProgram *p= ic->programs[i];
2916 if(p->id != opt_programid){
2917 p->discard = AVDISCARD_ALL;
2920 for(j=0; j<p->nb_stream_indexes; j++){
2921 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
2926 fprintf(stderr, "Specified program id not found\n");
2932 /* apply forced codec ids */
2933 for (i = 0; i < ic->nb_streams; i++)
2934 choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
2936 /* Set AVCodecContext options for avformat_find_stream_info */
2937 opts = setup_find_stream_info_opts(ic, codec_opts);
2938 orig_nb_streams = ic->nb_streams;
2940 /* If not enough info to get the stream parameters, we decode the
2941 first frames to get it. (used in mpeg case for example) */
2942 ret = avformat_find_stream_info(ic, opts);
2943 if (ret < 0 && verbose >= 0) {
2944 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2945 av_close_input_file(ic);
2949 timestamp = start_time;
2950 /* add the stream start time */
2951 if (ic->start_time != AV_NOPTS_VALUE)
2952 timestamp += ic->start_time;
2954 /* if seeking requested, we execute it */
2955 if (start_time != 0) {
2956 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2958 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2959 filename, (double)timestamp / AV_TIME_BASE);
2961 /* reset seek info */
2965 /* update the current parameters so that they match the one of the input stream */
2966 for(i=0;i<ic->nb_streams;i++) {
2967 AVStream *st = ic->streams[i];
2968 AVCodecContext *dec = st->codec;
2971 dec->thread_count = thread_count;
2973 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2974 ist = &input_streams[nb_input_streams - 1];
2976 ist->file_index = nb_input_files;
2978 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2980 if (i < nb_ts_scale)
2981 ist->ts_scale = ts_scale[i];
2983 ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2985 switch (dec->codec_type) {
2986 case AVMEDIA_TYPE_AUDIO:
2988 st->discard= AVDISCARD_ALL;
2990 case AVMEDIA_TYPE_VIDEO:
2991 rfps = ic->streams[i]->r_frame_rate.num;
2992 rfps_base = ic->streams[i]->r_frame_rate.den;
2994 dec->flags |= CODEC_FLAG_EMU_EDGE;
2995 dec->height >>= dec->lowres;
2996 dec->width >>= dec->lowres;
2999 dec->debug |= FF_DEBUG_MV;
3001 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3004 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3005 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3007 (float)rfps / rfps_base, rfps, rfps_base);
3011 st->discard= AVDISCARD_ALL;
3012 else if(video_discard)
3013 st->discard= video_discard;
3015 case AVMEDIA_TYPE_DATA:
3017 case AVMEDIA_TYPE_SUBTITLE:
3018 if(subtitle_disable)
3019 st->discard = AVDISCARD_ALL;
3021 case AVMEDIA_TYPE_ATTACHMENT:
3022 case AVMEDIA_TYPE_UNKNOWN:
3029 /* dump the file content */
3031 av_dump_format(ic, nb_input_files, filename, 0);
3033 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3034 input_files[nb_input_files - 1].ctx = ic;
3035 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3036 input_files[nb_input_files - 1].ts_offset = input_ts_offset - (copy_ts ? 0 : timestamp);
3038 frame_rate = (AVRational){0, 0};
3039 frame_pix_fmt = PIX_FMT_NONE;
3042 audio_sample_rate = 0;
3044 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3045 av_freep(&ts_scale);
3048 for (i = 0; i < orig_nb_streams; i++)
3049 av_dict_free(&opts[i]);
3051 av_dict_free(&codec_names);
3057 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3058 AVCodecContext *avctx)
3064 for (p = kf; *p; p++)
3067 ost->forced_kf_count = n;
3068 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3069 if (!ost->forced_kf_pts) {
3070 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3073 for (i = 0; i < n; i++) {
3074 p = i ? strchr(p, ',') + 1 : kf;
3075 t = parse_time_or_die("force_key_frames", p, 1);
3076 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3080 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3083 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3084 int idx = oc->nb_streams - 1;
3087 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3091 output_streams_for_file[nb_output_files] =
3092 grow_array(output_streams_for_file[nb_output_files],
3093 sizeof(*output_streams_for_file[nb_output_files]),
3094 &nb_output_streams_for_file[nb_output_files],
3096 ost = output_streams_for_file[nb_output_files][idx] =
3097 av_mallocz(sizeof(OutputStream));
3099 fprintf(stderr, "Could not alloc output stream\n");
3102 ost->file_index = nb_output_files;
3105 st->codec->codec_type = type;
3106 ost->enc = choose_codec(oc, st, type, codec_names);
3108 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3111 avcodec_get_context_defaults3(st->codec, ost->enc);
3112 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3114 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3118 static OutputStream *new_video_stream(AVFormatContext *oc)
3122 AVCodecContext *video_enc;
3124 ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3126 if (!st->stream_copy) {
3127 ost->frame_aspect_ratio = frame_aspect_ratio;
3128 frame_aspect_ratio = 0;
3130 ost->avfilter= vfilters;
3135 ost->bitstream_filters = video_bitstream_filters;
3136 video_bitstream_filters= NULL;
3138 st->codec->thread_count= thread_count;
3140 video_enc = st->codec;
3143 video_enc->codec_tag= video_codec_tag;
3145 if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3146 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3149 if (st->stream_copy) {
3150 video_enc->sample_aspect_ratio =
3151 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3157 ost->frame_rate = frame_rate;
3159 video_enc->width = frame_width;
3160 video_enc->height = frame_height;
3161 video_enc->pix_fmt = frame_pix_fmt;
3162 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3165 video_enc->gop_size = 0;
3166 if (video_qscale || same_quant) {
3167 video_enc->flags |= CODEC_FLAG_QSCALE;
3168 video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3172 video_enc->intra_matrix = intra_matrix;
3174 video_enc->inter_matrix = inter_matrix;
3176 p= video_rc_override_string;
3179 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3181 fprintf(stderr, "error parsing rc_override\n");
3184 video_enc->rc_override=
3185 av_realloc(video_enc->rc_override,
3186 sizeof(RcOverride)*(i+1));
3187 video_enc->rc_override[i].start_frame= start;
3188 video_enc->rc_override[i].end_frame = end;
3190 video_enc->rc_override[i].qscale= q;
3191 video_enc->rc_override[i].quality_factor= 1.0;
3194 video_enc->rc_override[i].qscale= 0;
3195 video_enc->rc_override[i].quality_factor= -q/100.0;
3200 video_enc->rc_override_count=i;
3201 if (!video_enc->rc_initial_buffer_occupancy)
3202 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3203 video_enc->me_threshold= me_threshold;
3204 video_enc->intra_dc_precision= intra_dc_precision - 8;
3207 video_enc->flags|= CODEC_FLAG_PSNR;
3212 video_enc->flags |= CODEC_FLAG_PASS1;
3214 video_enc->flags |= CODEC_FLAG_PASS2;
3218 if (forced_key_frames)
3219 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3221 if (video_language) {
3222 av_dict_set(&st->metadata, "language", video_language, 0);
3223 av_freep(&video_language);
3226 /* reset some key parameters */
3228 av_freep(&forced_key_frames);
3229 frame_pix_fmt = PIX_FMT_NONE;
3233 static OutputStream *new_audio_stream(AVFormatContext *oc)
3237 AVCodecContext *audio_enc;
3239 ost = new_output_stream(oc, AVMEDIA_TYPE_AUDIO);
3242 ost->bitstream_filters = audio_bitstream_filters;
3243 audio_bitstream_filters= NULL;
3245 st->codec->thread_count= thread_count;
3247 audio_enc = st->codec;
3248 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3251 audio_enc->codec_tag= audio_codec_tag;
3253 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3254 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3256 if (!st->stream_copy) {
3257 if (audio_qscale > QSCALE_NONE) {
3258 audio_enc->flags |= CODEC_FLAG_QSCALE;
3259 audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3262 audio_enc->channels = audio_channels;
3263 if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3264 audio_enc->sample_fmt = audio_sample_fmt;
3265 if (audio_sample_rate)
3266 audio_enc->sample_rate = audio_sample_rate;
3268 if (audio_language) {
3269 av_dict_set(&st->metadata, "language", audio_language, 0);
3270 av_freep(&audio_language);
3273 /* reset some key parameters */
3279 static OutputStream *new_data_stream(AVFormatContext *oc)
3283 AVCodecContext *data_enc;
3285 ost = new_output_stream(oc, AVMEDIA_TYPE_DATA);
3287 data_enc = st->codec;
3288 if (!st->stream_copy) {
3289 fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3294 data_enc->codec_tag= data_codec_tag;
3296 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3297 data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3304 static OutputStream *new_subtitle_stream(AVFormatContext *oc)
3308 AVCodecContext *subtitle_enc;
3310 ost = new_output_stream(oc, AVMEDIA_TYPE_SUBTITLE);
3312 subtitle_enc = st->codec;
3314 ost->bitstream_filters = subtitle_bitstream_filters;
3315 subtitle_bitstream_filters= NULL;
3317 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3319 if(subtitle_codec_tag)
3320 subtitle_enc->codec_tag= subtitle_codec_tag;
3322 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3323 subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3326 if (subtitle_language) {
3327 av_dict_set(&st->metadata, "language", subtitle_language, 0);
3328 av_freep(&subtitle_language);
3331 subtitle_disable = 0;
3335 /* arg format is "output-stream-index:streamid-value". */
3336 static int opt_streamid(const char *opt, const char *arg)
3342 av_strlcpy(idx_str, arg, sizeof(idx_str));
3343 p = strchr(idx_str, ':');
3346 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3351 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3352 streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3353 streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3357 static int copy_chapters(int infile, int outfile)
3359 AVFormatContext *is = input_files[infile].ctx;
3360 AVFormatContext *os = output_files[outfile];
3363 for (i = 0; i < is->nb_chapters; i++) {
3364 AVChapter *in_ch = is->chapters[i], *out_ch;
3365 int64_t ts_off = av_rescale_q(start_time - input_files[infile].ts_offset,
3366 AV_TIME_BASE_Q, in_ch->time_base);
3367 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
3368 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3371 if (in_ch->end < ts_off)
3373 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3376 out_ch = av_mallocz(sizeof(AVChapter));
3378 return AVERROR(ENOMEM);
3380 out_ch->id = in_ch->id;
3381 out_ch->time_base = in_ch->time_base;
3382 out_ch->start = FFMAX(0, in_ch->start - ts_off);
3383 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
3385 if (metadata_chapters_autocopy)
3386 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3389 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3391 return AVERROR(ENOMEM);
3392 os->chapters[os->nb_chapters - 1] = out_ch;
3397 static int read_avserver_streams(AVFormatContext *s, const char *filename)
3400 AVFormatContext *ic = NULL;
3402 err = avformat_open_input(&ic, filename, NULL, NULL);
3405 /* copy stream format */
3406 for(i=0;i<ic->nb_streams;i++) {
3411 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3412 ost = new_output_stream(s, codec->type);
3415 // FIXME: a more elegant solution is needed
3416 memcpy(st, ic->streams[i], sizeof(AVStream));
3418 avcodec_copy_context(st->codec, ic->streams[i]->codec);
3420 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3421 choose_sample_fmt(st, codec);
3422 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3423 choose_pixel_fmt(st, codec);
3426 av_close_input_file(ic);
3430 static void opt_output_file(const char *filename)
3432 AVFormatContext *oc;
3434 AVOutputFormat *file_oformat;
3438 if (!strcmp(filename, "-"))
3441 oc = avformat_alloc_context();
3443 print_error(filename, AVERROR(ENOMEM));
3447 if (last_asked_format) {
3448 file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3449 if (!file_oformat) {
3450 fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3453 last_asked_format = NULL;
3455 file_oformat = av_guess_format(NULL, filename, NULL);
3456 if (!file_oformat) {
3457 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3463 oc->oformat = file_oformat;
3464 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3466 if (!strcmp(file_oformat->name, "ffm") &&
3467 av_strstart(filename, "http:", NULL)) {
3468 /* special case for files sent to avserver: we get the stream
3469 parameters from avserver */
3470 int err = read_avserver_streams(oc, filename);
3472 print_error(filename, err);
3475 } else if (!nb_stream_maps) {
3476 /* pick the "best" stream of each type */
3477 #define NEW_STREAM(type, index)\
3479 ost = new_ ## type ## _stream(oc);\
3480 ost->source_index = index;\
3481 ost->sync_ist = &input_streams[index];\
3482 input_streams[index].discard = 0;\
3485 /* video: highest resolution */
3486 if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3487 int area = 0, idx = -1;
3488 for (i = 0; i < nb_input_streams; i++) {
3489 ist = &input_streams[i];
3490 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3491 ist->st->codec->width * ist->st->codec->height > area) {
3492 area = ist->st->codec->width * ist->st->codec->height;
3496 NEW_STREAM(video, idx);
3499 /* audio: most channels */
3500 if (!audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3501 int channels = 0, idx = -1;
3502 for (i = 0; i < nb_input_streams; i++) {
3503 ist = &input_streams[i];
3504 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3505 ist->st->codec->channels > channels) {
3506 channels = ist->st->codec->channels;
3510 NEW_STREAM(audio, idx);
3513 /* subtitles: pick first */
3514 if (!subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3515 for (i = 0; i < nb_input_streams; i++)
3516 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3517 NEW_STREAM(subtitle, i);
3521 /* do something with data? */
3523 for (i = 0; i < nb_stream_maps; i++) {
3524 StreamMap *map = &stream_maps[i];
3529 ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3530 switch (ist->st->codec->codec_type) {
3531 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(oc); break;
3532 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(oc); break;
3533 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(oc); break;
3534 case AVMEDIA_TYPE_DATA: ost = new_data_stream(oc); break;
3536 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3537 map->file_index, map->stream_index);
3541 ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3542 ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3543 map->sync_stream_index];
3548 av_dict_copy(&oc->metadata, metadata, 0);
3549 av_dict_free(&metadata);
3551 av_dict_copy(&output_opts[nb_output_files], format_opts, 0);
3552 output_files[nb_output_files++] = oc;
3554 /* check filename in case of an image number is expected */
3555 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3556 if (!av_filename_number_test(oc->filename)) {
3557 print_error(oc->filename, AVERROR(EINVAL));
3562 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3563 /* test if it already exists to avoid loosing precious files */
3564 if (!file_overwrite &&
3565 (strchr(filename, ':') == NULL ||
3566 filename[1] == ':' ||
3567 av_strstart(filename, "file:", NULL))) {
3568 if (avio_check(filename, 0) == 0) {
3570 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3572 if (!read_yesno()) {
3573 fprintf(stderr, "Not overwriting - exiting\n");
3578 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3585 if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
3586 print_error(filename, err);
3591 oc->preload= (int)(mux_preload*AV_TIME_BASE);
3592 oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3593 oc->flags |= AVFMT_FLAG_NONBLOCK;
3596 if (chapters_input_file >= nb_input_files) {
3597 if (chapters_input_file == INT_MAX) {
3598 /* copy chapters from the first input file that has them*/
3599 chapters_input_file = -1;
3600 for (i = 0; i < nb_input_files; i++)
3601 if (input_files[i].ctx->nb_chapters) {
3602 chapters_input_file = i;
3606 av_log(NULL, AV_LOG_ERROR, "Invalid input file index %d in chapter mapping.\n",
3607 chapters_input_file);
3611 if (chapters_input_file >= 0)
3612 copy_chapters(chapters_input_file, nb_output_files - 1);
3615 for (i = 0; i < nb_meta_data_maps; i++) {
3616 AVFormatContext *files[2];
3617 AVDictionary **meta[2];
3620 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3621 if ((index) < 0 || (index) >= (nb_elems)) {\
3622 av_log(NULL, AV_LOG_ERROR, "Invalid %s index %d while processing metadata maps\n",\
3627 int in_file_index = meta_data_maps[i][1].file;
3628 if (in_file_index < 0)
3630 METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
3633 files[1] = input_files[in_file_index].ctx;
3635 for (j = 0; j < 2; j++) {
3636 MetadataMap *map = &meta_data_maps[i][j];
3638 switch (map->type) {
3640 meta[j] = &files[j]->metadata;
3643 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
3644 meta[j] = &files[j]->streams[map->index]->metadata;
3647 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
3648 meta[j] = &files[j]->chapters[map->index]->metadata;
3651 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
3652 meta[j] = &files[j]->programs[map->index]->metadata;
3657 av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
3660 /* copy global metadata by default */