3 * Copyright (c) 2000-2003 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavutil/audioconvert.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/samplefmt.h"
42 #include "libavutil/colorspace.h"
43 #include "libavutil/fifo.h"
44 #include "libavutil/intreadwrite.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/avstring.h"
47 #include "libavutil/libm.h"
48 #include "libavformat/os_support.h"
51 # include "libavfilter/avfilter.h"
52 # include "libavfilter/avfiltergraph.h"
53 # include "libavfilter/vsrc_buffer.h"
56 #if HAVE_SYS_RESOURCE_H
57 #include <sys/types.h>
59 #include <sys/resource.h>
60 #elif HAVE_GETPROCESSTIMES
63 #if HAVE_GETPROCESSMEMORYINFO
69 #include <sys/select.h>
74 #include <sys/ioctl.h>
84 #include "libavutil/avassert.h"
86 const char program_name[] = "FFmpeg";
87 const int program_birth_year = 2000;
89 /* select an input stream for an output stream */
90 typedef struct AVStreamMap {
94 int sync_stream_index;
98 * select an input file for an output file
100 typedef struct AVMetaDataMap {
101 int file; //< file index
102 char type; //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
103 int index; //< stream/chapter/program number
106 typedef struct AVChapterMap {
111 static const OptionDef options[];
113 #define MAX_FILES 100
114 #if !FF_API_MAX_STREAMS
115 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
118 static const char *last_asked_format = NULL;
119 static AVFormatContext *input_files[MAX_FILES];
120 static int64_t input_files_ts_offset[MAX_FILES];
121 static double *input_files_ts_scale[MAX_FILES] = {NULL};
122 static AVCodec **input_codecs = NULL;
123 static int nb_input_files = 0;
124 static int nb_input_codecs = 0;
125 static int nb_input_files_ts_scale[MAX_FILES] = {0};
127 static AVFormatContext *output_files[MAX_FILES];
128 static AVCodec **output_codecs = NULL;
129 static int nb_output_files = 0;
130 static int nb_output_codecs = 0;
132 static AVStreamMap *stream_maps = NULL;
133 static int nb_stream_maps;
135 /* first item specifies output metadata, second is input */
136 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
137 static int nb_meta_data_maps;
138 static int metadata_global_autocopy = 1;
139 static int metadata_streams_autocopy = 1;
140 static int metadata_chapters_autocopy = 1;
142 static AVChapterMap *chapter_maps = NULL;
143 static int nb_chapter_maps;
145 /* indexed by output file stream index */
146 static int *streamid_map = NULL;
147 static int nb_streamid_map = 0;
149 static int frame_width = 0;
150 static int frame_height = 0;
151 static float frame_aspect_ratio = 0;
152 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
153 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
154 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
155 static AVRational frame_rate;
156 static float video_qscale = 0;
157 static uint16_t *intra_matrix = NULL;
158 static uint16_t *inter_matrix = NULL;
159 static const char *video_rc_override_string=NULL;
160 static int video_disable = 0;
161 static int video_discard = 0;
162 static char *video_codec_name = NULL;
163 static unsigned int video_codec_tag = 0;
164 static char *video_language = NULL;
165 static int same_quality = 0;
166 static int do_deinterlace = 0;
167 static int top_field_first = -1;
168 static int me_threshold = 0;
169 static int intra_dc_precision = 8;
170 static int loop_input = 0;
171 static int loop_output = AVFMT_NOOUTPUTLOOP;
172 static int qp_hist = 0;
174 static char *vfilters = NULL;
175 static AVFilterGraph *graph = NULL;
178 static int intra_only = 0;
179 static int audio_sample_rate = 44100;
180 static int64_t channel_layout = 0;
181 #define QSCALE_NONE -99999
182 static float audio_qscale = QSCALE_NONE;
183 static int audio_disable = 0;
184 static int audio_channels = 1;
185 static char *audio_codec_name = NULL;
186 static unsigned int audio_codec_tag = 0;
187 static char *audio_language = NULL;
189 static int subtitle_disable = 0;
190 static char *subtitle_codec_name = NULL;
191 static char *subtitle_language = NULL;
192 static unsigned int subtitle_codec_tag = 0;
194 static float mux_preload= 0.5;
195 static float mux_max_delay= 0.7;
197 static int64_t recording_time = INT64_MAX;
198 static int64_t start_time = 0;
199 static int64_t recording_timestamp = 0;
200 static int64_t input_ts_offset = 0;
201 static int file_overwrite = 0;
202 static AVMetadata *metadata;
203 static int do_benchmark = 0;
204 static int do_hex_dump = 0;
205 static int do_pkt_dump = 0;
206 static int do_psnr = 0;
207 static int do_pass = 0;
208 static char *pass_logfilename_prefix = NULL;
209 static int audio_stream_copy = 0;
210 static int video_stream_copy = 0;
211 static int subtitle_stream_copy = 0;
212 static int video_sync_method= -1;
213 static int audio_sync_method= 0;
214 static float audio_drift_threshold= 0.1;
215 static int copy_ts= 0;
217 static int opt_shortest = 0;
218 static int video_global_header = 0;
219 static char *vstats_filename;
220 static FILE *vstats_file;
221 static int opt_programid = 0;
222 static int copy_initial_nonkeyframes = 0;
224 static int rate_emu = 0;
226 static int video_channel = 0;
227 static char *video_standard;
229 static int audio_volume = 256;
231 static int exit_on_error = 0;
232 static int using_stdin = 0;
233 static int verbose = 1;
234 static int thread_count= 1;
235 static int q_pressed = 0;
236 static int64_t video_size = 0;
237 static int64_t audio_size = 0;
238 static int64_t extra_size = 0;
239 static int nb_frames_dup = 0;
240 static int nb_frames_drop = 0;
241 static int input_sync;
242 static uint64_t limit_filesize = 0;
243 static int force_fps = 0;
244 static char *forced_key_frames = NULL;
246 static float dts_delta_threshold = 10;
248 static unsigned int sws_flags = SWS_BICUBIC;
250 static int64_t timer_start;
252 static uint8_t *audio_buf;
253 static uint8_t *audio_out;
254 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
256 static short *samples;
258 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
259 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
260 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
262 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
264 struct AVInputStream;
266 typedef struct AVOutputStream {
267 int file_index; /* file index */
268 int index; /* stream index in the output file */
269 int source_index; /* AVInputStream index */
270 AVStream *st; /* stream in the output file */
271 int encoding_needed; /* true if encoding needed for this stream */
273 /* input pts and corresponding output pts
275 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
276 struct AVInputStream *sync_ist; /* input stream to sync against */
277 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
278 AVBitStreamFilterContext *bitstream_filters;
281 AVFrame pict_tmp; /* temporary image for resampling */
282 struct SwsContext *img_resample_ctx; /* for image resampling */
285 int resample_pix_fmt;
287 /* full frame size of first frame */
291 /* forced key frames */
292 int64_t *forced_kf_pts;
298 ReSampleContext *resample; /* for audio resampling */
299 int resample_sample_fmt;
300 int resample_channels;
301 int resample_sample_rate;
303 AVAudioConvert *reformat_ctx;
304 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
308 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
309 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
311 typedef struct AVInputStream {
315 int discard; /* true if stream data should be discarded */
316 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
317 int64_t sample_index; /* current sample */
319 int64_t start; /* time when read started */
320 int64_t next_pts; /* synthetic pts for cases where pkt.pts
322 int64_t pts; /* current pts */
323 PtsCorrectionContext pts_ctx;
324 int is_start; /* is 1 at the start and after a discontinuity */
325 int showed_multi_packet_warning;
326 int is_past_recording_time;
328 AVFilterContext *output_video_filter;
329 AVFilterContext *input_video_filter;
330 AVFrame *filter_frame;
331 int has_filter_frame;
332 AVFilterBufferRef *picref;
336 typedef struct AVInputFile {
337 int eof_reached; /* true if eof reached */
338 int ist_index; /* index of first stream in ist_table */
339 int buffer_size; /* current total buffer size */
340 int nb_streams; /* nb streams we are aware of */
345 /* init terminal so that we can grab keys */
346 static struct termios oldtty;
351 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
353 AVFilterContext *last_filter, *filter;
354 /** filter graph containing all filters including input & output */
355 AVCodecContext *codec = ost->st->codec;
356 AVCodecContext *icodec = ist->st->codec;
357 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
361 graph = avfilter_graph_alloc();
363 snprintf(args, 255, "%d:%d:%d:%d:%d", ist->st->codec->width,
364 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE);
365 ret = avfilter_graph_create_filter(&ist->input_video_filter, avfilter_get_by_name("buffer"),
366 "src", args, NULL, graph);
369 ret = avfilter_graph_create_filter(&ist->output_video_filter, &ffsink,
370 "out", NULL, &ffsink_ctx, graph);
373 last_filter = ist->input_video_filter;
375 if (codec->width != icodec->width || codec->height != icodec->height) {
376 snprintf(args, 255, "%d:%d:flags=0x%X",
379 (int)av_get_int(sws_opts, "sws_flags", NULL));
380 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
381 NULL, args, NULL, graph)) < 0)
383 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
385 last_filter = filter;
388 snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
389 graph->scale_sws_opts = av_strdup(args);
392 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
393 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
395 outputs->name = av_strdup("in");
396 outputs->filter_ctx = last_filter;
397 outputs->pad_idx = 0;
398 outputs->next = NULL;
400 inputs->name = av_strdup("out");
401 inputs->filter_ctx = ist->output_video_filter;
405 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
409 if ((ret = avfilter_link(last_filter, 0, ist->output_video_filter, 0)) < 0)
413 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
416 codec->width = ist->output_video_filter->inputs[0]->w;
417 codec->height = ist->output_video_filter->inputs[0]->h;
421 #endif /* CONFIG_AVFILTER */
423 static void term_exit(void)
425 av_log(NULL, AV_LOG_QUIET, "");
427 tcsetattr (0, TCSANOW, &oldtty);
431 static volatile int received_sigterm = 0;
434 sigterm_handler(int sig)
436 received_sigterm = sig;
440 static void term_init(void)
449 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
450 |INLCR|IGNCR|ICRNL|IXON);
451 tty.c_oflag |= OPOST;
452 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
453 tty.c_cflag &= ~(CSIZE|PARENB);
458 tcsetattr (0, TCSANOW, &tty);
459 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
462 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
463 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
465 signal(SIGXCPU, sigterm_handler);
469 /* read a key without blocking */
470 static int read_key(void)
482 n = select(1, &rfds, NULL, NULL, &tv);
497 static int decode_interrupt_cb(void)
499 return q_pressed || (q_pressed = read_key() == 'q');
502 static int ffmpeg_exit(int ret)
507 for(i=0;i<nb_output_files;i++) {
508 AVFormatContext *s = output_files[i];
510 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
512 avformat_free_context(s);
513 av_free(output_streams_for_file[i]);
515 for(i=0;i<nb_input_files;i++) {
516 av_close_input_file(input_files[i]);
517 av_free(input_files_ts_scale[i]);
520 av_free(intra_matrix);
521 av_free(inter_matrix);
525 av_free(vstats_filename);
527 av_free(streamid_map);
528 av_free(input_codecs);
529 av_free(output_codecs);
530 av_free(stream_maps);
531 av_free(meta_data_maps);
533 av_free(video_codec_name);
534 av_free(audio_codec_name);
535 av_free(subtitle_codec_name);
537 av_free(video_standard);
542 allocated_audio_buf_size= allocated_audio_out_size= 0;
549 if (received_sigterm) {
551 "Received signal %d: terminating.\n",
552 (int) received_sigterm);
556 exit(ret); /* not all OS-es handle main() return value */
560 /* similar to ff_dynarray_add() and av_fast_realloc() */
561 static void *grow_array(void *array, int elem_size, int *size, int new_size)
563 if (new_size >= INT_MAX / elem_size) {
564 fprintf(stderr, "Array too big.\n");
567 if (*size < new_size) {
568 uint8_t *tmp = av_realloc(array, new_size*elem_size);
570 fprintf(stderr, "Could not alloc buffer.\n");
573 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
580 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
582 if(codec && codec->sample_fmts){
583 const enum AVSampleFormat *p= codec->sample_fmts;
585 if(*p == st->codec->sample_fmt)
589 av_log(NULL, AV_LOG_WARNING,
590 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
591 av_get_sample_fmt_name(st->codec->sample_fmt),
593 av_get_sample_fmt_name(codec->sample_fmts[0]));
594 st->codec->sample_fmt = codec->sample_fmts[0];
599 static void choose_sample_rate(AVStream *st, AVCodec *codec)
601 if(codec && codec->supported_samplerates){
602 const int *p= codec->supported_samplerates;
604 int best_dist=INT_MAX;
606 int dist= abs(st->codec->sample_rate - *p);
607 if(dist < best_dist){
613 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
615 st->codec->sample_rate= best;
619 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
621 if(codec && codec->pix_fmts){
622 const enum PixelFormat *p= codec->pix_fmts;
623 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
624 if(st->codec->codec_id==CODEC_ID_MJPEG){
625 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
626 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
627 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};
631 if(*p == st->codec->pix_fmt)
635 st->codec->pix_fmt = codec->pix_fmts[0];
639 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
641 int idx = oc->nb_streams - 1;
644 output_streams_for_file[file_idx] =
645 grow_array(output_streams_for_file[file_idx],
646 sizeof(*output_streams_for_file[file_idx]),
647 &nb_output_streams_for_file[file_idx],
649 ost = output_streams_for_file[file_idx][idx] =
650 av_mallocz(sizeof(AVOutputStream));
652 fprintf(stderr, "Could not alloc output stream\n");
655 ost->file_index = file_idx;
660 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
666 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
669 /* copy stream format */
671 for(i=0;i<ic->nb_streams;i++) {
677 // FIXME: a more elegant solution is needed
678 st = av_mallocz(sizeof(AVStream));
679 memcpy(st, ic->streams[i], sizeof(AVStream));
680 st->codec = avcodec_alloc_context();
682 print_error(filename, AVERROR(ENOMEM));
685 avcodec_copy_context(st->codec, ic->streams[i]->codec);
688 codec = avcodec_find_encoder(st->codec->codec_id);
689 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
690 if (audio_stream_copy) {
693 choose_sample_fmt(st, codec);
694 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
695 if (video_stream_copy) {
698 choose_pixel_fmt(st, codec);
701 if(st->codec->flags & CODEC_FLAG_BITEXACT)
704 new_output_stream(s, nb_output_files);
708 s->timestamp = av_gettime();
710 av_close_input_file(ic);
715 get_sync_ipts(const AVOutputStream *ost)
717 const AVInputStream *ist = ost->sync_ist;
718 return (double)(ist->pts - start_time)/AV_TIME_BASE;
721 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
725 AVPacket new_pkt= *pkt;
726 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
727 &new_pkt.data, &new_pkt.size,
728 pkt->data, pkt->size,
729 pkt->flags & AV_PKT_FLAG_KEY);
732 new_pkt.destruct= av_destruct_packet;
734 fprintf(stderr, "%s failed for stream %d, codec %s",
735 bsfc->filter->name, pkt->stream_index,
736 avctx->codec ? avctx->codec->name : "copy");
746 ret= av_interleaved_write_frame(s, pkt);
748 print_error("av_interleaved_write_frame()", ret);
753 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
755 static void do_audio_out(AVFormatContext *s,
758 unsigned char *buf, int size)
761 int64_t audio_out_size, audio_buf_size;
762 int64_t allocated_for_size= size;
764 int size_out, frame_bytes, ret, resample_changed;
765 AVCodecContext *enc= ost->st->codec;
766 AVCodecContext *dec= ist->st->codec;
767 int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
768 int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
769 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
772 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
773 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
774 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
775 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
776 audio_buf_size*= osize*enc->channels;
778 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
779 if(coded_bps > 8*osize)
780 audio_out_size= audio_out_size * coded_bps / (8*osize);
781 audio_out_size += FF_MIN_BUFFER_SIZE;
783 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
784 fprintf(stderr, "Buffer sizes too large\n");
788 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
789 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
790 if (!audio_buf || !audio_out){
791 fprintf(stderr, "Out of memory in do_audio_out\n");
795 if (enc->channels != dec->channels)
796 ost->audio_resample = 1;
798 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
799 ost->resample_channels != dec->channels ||
800 ost->resample_sample_rate != dec->sample_rate;
802 if ((ost->audio_resample && !ost->resample) || resample_changed) {
803 if (resample_changed) {
804 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",
805 ist->file_index, ist->index,
806 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
807 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
808 ost->resample_sample_fmt = dec->sample_fmt;
809 ost->resample_channels = dec->channels;
810 ost->resample_sample_rate = dec->sample_rate;
812 audio_resample_close(ost->resample);
814 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
815 if (audio_sync_method <= 1 &&
816 ost->resample_sample_fmt == enc->sample_fmt &&
817 ost->resample_channels == enc->channels &&
818 ost->resample_sample_rate == enc->sample_rate) {
819 ost->resample = NULL;
820 ost->audio_resample = 0;
822 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
823 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
824 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
825 enc->sample_rate, dec->sample_rate,
826 enc->sample_fmt, dec->sample_fmt,
828 if (!ost->resample) {
829 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
830 dec->channels, dec->sample_rate,
831 enc->channels, enc->sample_rate);
837 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
838 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
839 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
840 if (ost->reformat_ctx)
841 av_audio_convert_free(ost->reformat_ctx);
842 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
843 dec->sample_fmt, 1, NULL, 0);
844 if (!ost->reformat_ctx) {
845 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
846 av_get_sample_fmt_name(dec->sample_fmt),
847 av_get_sample_fmt_name(enc->sample_fmt));
850 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
853 if(audio_sync_method){
854 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
855 - av_fifo_size(ost->fifo)/(enc->channels * 2);
856 double idelta= delta*dec->sample_rate / enc->sample_rate;
857 int byte_delta= ((int)idelta)*2*dec->channels;
859 //FIXME resample delay
860 if(fabs(delta) > 50){
861 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
863 byte_delta= FFMAX(byte_delta, -size);
867 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
872 static uint8_t *input_tmp= NULL;
873 input_tmp= av_realloc(input_tmp, byte_delta + size);
875 if(byte_delta > allocated_for_size - size){
876 allocated_for_size= byte_delta + (int64_t)size;
881 memset(input_tmp, 0, byte_delta);
882 memcpy(input_tmp + byte_delta, buf, size);
886 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
888 }else if(audio_sync_method>1){
889 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
890 av_assert0(ost->audio_resample);
892 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
893 // 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));
894 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
898 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
899 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
901 if (ost->audio_resample) {
903 size_out = audio_resample(ost->resample,
904 (short *)buftmp, (short *)buf,
905 size / (dec->channels * isize));
906 size_out = size_out * enc->channels * osize;
912 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
913 const void *ibuf[6]= {buftmp};
914 void *obuf[6]= {audio_buf};
915 int istride[6]= {isize};
916 int ostride[6]= {osize};
917 int len= size_out/istride[0];
918 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
919 printf("av_audio_convert() failed\n");
925 size_out = len*osize;
928 /* now encode as many frames as possible */
929 if (enc->frame_size > 1) {
930 /* output resampled raw samples */
931 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
932 fprintf(stderr, "av_fifo_realloc2() failed\n");
935 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
937 frame_bytes = enc->frame_size * osize * enc->channels;
939 while (av_fifo_size(ost->fifo) >= frame_bytes) {
941 av_init_packet(&pkt);
943 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
945 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
947 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
950 fprintf(stderr, "Audio encoding failed\n");
954 pkt.stream_index= ost->index;
957 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
958 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
959 pkt.flags |= AV_PKT_FLAG_KEY;
960 write_frame(s, &pkt, enc, ost->bitstream_filters);
962 ost->sync_opts += enc->frame_size;
966 av_init_packet(&pkt);
968 ost->sync_opts += size_out / (osize * enc->channels);
970 /* output a pcm frame */
971 /* determine the size of the coded buffer */
974 size_out = size_out*coded_bps/8;
976 if(size_out > audio_out_size){
977 fprintf(stderr, "Internal error, buffer size too small\n");
981 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
982 ret = avcodec_encode_audio(enc, audio_out, size_out,
985 fprintf(stderr, "Audio encoding failed\n");
989 pkt.stream_index= ost->index;
992 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
993 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
994 pkt.flags |= AV_PKT_FLAG_KEY;
995 write_frame(s, &pkt, enc, ost->bitstream_filters);
999 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1001 AVCodecContext *dec;
1002 AVPicture *picture2;
1003 AVPicture picture_tmp;
1006 dec = ist->st->codec;
1008 /* deinterlace : must be done before any resize */
1009 if (do_deinterlace) {
1012 /* create temporary picture */
1013 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1014 buf = av_malloc(size);
1018 picture2 = &picture_tmp;
1019 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1021 if(avpicture_deinterlace(picture2, picture,
1022 dec->pix_fmt, dec->width, dec->height) < 0) {
1023 /* if error, do not deinterlace */
1024 fprintf(stderr, "Deinterlacing failed\n");
1033 if (picture != picture2)
1034 *picture = *picture2;
1038 /* we begin to correct av delay at this threshold */
1039 #define AV_DELAY_MAX 0.100
1041 static void do_subtitle_out(AVFormatContext *s,
1042 AVOutputStream *ost,
1047 static uint8_t *subtitle_out = NULL;
1048 int subtitle_out_max_size = 1024 * 1024;
1049 int subtitle_out_size, nb, i;
1050 AVCodecContext *enc;
1053 if (pts == AV_NOPTS_VALUE) {
1054 fprintf(stderr, "Subtitle packets must have a pts\n");
1060 enc = ost->st->codec;
1062 if (!subtitle_out) {
1063 subtitle_out = av_malloc(subtitle_out_max_size);
1066 /* Note: DVB subtitle need one packet to draw them and one other
1067 packet to clear them */
1068 /* XXX: signal it in the codec context ? */
1069 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1074 for(i = 0; i < nb; i++) {
1075 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1076 // start_display_time is required to be 0
1077 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1078 sub->end_display_time -= sub->start_display_time;
1079 sub->start_display_time = 0;
1080 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1081 subtitle_out_max_size, sub);
1082 if (subtitle_out_size < 0) {
1083 fprintf(stderr, "Subtitle encoding failed\n");
1087 av_init_packet(&pkt);
1088 pkt.stream_index = ost->index;
1089 pkt.data = subtitle_out;
1090 pkt.size = subtitle_out_size;
1091 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1092 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1093 /* XXX: the pts correction is handled here. Maybe handling
1094 it in the codec would be better */
1096 pkt.pts += 90 * sub->start_display_time;
1098 pkt.pts += 90 * sub->end_display_time;
1100 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1104 static int bit_buffer_size= 1024*256;
1105 static uint8_t *bit_buffer= NULL;
1107 static void do_video_out(AVFormatContext *s,
1108 AVOutputStream *ost,
1110 AVFrame *in_picture,
1113 int nb_frames, i, ret;
1114 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1115 AVCodecContext *enc, *dec;
1118 enc = ost->st->codec;
1119 dec = ist->st->codec;
1121 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1123 /* by default, we output a single frame */
1128 if(video_sync_method){
1129 double vdelta = sync_ipts - ost->sync_opts;
1130 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1133 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1136 }else if(vdelta>0.6)
1137 ost->sync_opts= lrintf(sync_ipts);
1138 }else if (vdelta > 1.1)
1139 nb_frames = lrintf(vdelta);
1140 //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);
1141 if (nb_frames == 0){
1144 fprintf(stderr, "*** drop!\n");
1145 }else if (nb_frames > 1) {
1146 nb_frames_dup += nb_frames - 1;
1148 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1151 ost->sync_opts= lrintf(sync_ipts);
1153 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1157 formatted_picture = in_picture;
1158 final_picture = formatted_picture;
1159 padding_src = formatted_picture;
1160 resampling_dst = &ost->pict_tmp;
1162 if ( ost->resample_height != ist->st->codec->height
1163 || ost->resample_width != ist->st->codec->width
1164 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1166 fprintf(stderr,"Input Stream #%d.%d frame size changed to %dx%d, %s\n", ist->file_index, ist->index, ist->st->codec->width, ist->st->codec->height,avcodec_get_pix_fmt_name(ist->st->codec->pix_fmt));
1167 if(!ost->video_resample)
1171 #if !CONFIG_AVFILTER
1172 if (ost->video_resample) {
1174 final_picture = &ost->pict_tmp;
1175 if( ost->resample_height != ist->st->codec->height
1176 || ost->resample_width != ist->st->codec->width
1177 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1179 /* initialize a new scaler context */
1180 sws_freeContext(ost->img_resample_ctx);
1181 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1182 ost->img_resample_ctx = sws_getContext(
1183 ist->st->codec->width,
1184 ist->st->codec->height,
1185 ist->st->codec->pix_fmt,
1186 ost->st->codec->width,
1187 ost->st->codec->height,
1188 ost->st->codec->pix_fmt,
1189 sws_flags, NULL, NULL, NULL);
1190 if (ost->img_resample_ctx == NULL) {
1191 fprintf(stderr, "Cannot get resampling context\n");
1195 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1196 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1200 /* duplicates frame if needed */
1201 for(i=0;i<nb_frames;i++) {
1203 av_init_packet(&pkt);
1204 pkt.stream_index= ost->index;
1206 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1207 /* raw pictures are written as AVPicture structure to
1208 avoid any copies. We support temorarily the older
1210 AVFrame* old_frame = enc->coded_frame;
1211 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1212 pkt.data= (uint8_t *)final_picture;
1213 pkt.size= sizeof(AVPicture);
1214 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1215 pkt.flags |= AV_PKT_FLAG_KEY;
1217 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1218 enc->coded_frame = old_frame;
1220 AVFrame big_picture;
1222 big_picture= *final_picture;
1223 /* better than nothing: use input picture interlaced
1225 big_picture.interlaced_frame = in_picture->interlaced_frame;
1226 if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1227 if(top_field_first == -1)
1228 big_picture.top_field_first = in_picture->top_field_first;
1230 big_picture.top_field_first = top_field_first;
1233 /* handles sameq here. This is not correct because it may
1234 not be a global option */
1235 big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1237 big_picture.pict_type = 0;
1238 // big_picture.pts = AV_NOPTS_VALUE;
1239 big_picture.pts= ost->sync_opts;
1240 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1241 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1242 if (ost->forced_kf_index < ost->forced_kf_count &&
1243 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1244 big_picture.pict_type = FF_I_TYPE;
1245 ost->forced_kf_index++;
1247 ret = avcodec_encode_video(enc,
1248 bit_buffer, bit_buffer_size,
1251 fprintf(stderr, "Video encoding failed\n");
1256 pkt.data= bit_buffer;
1258 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1259 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1260 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1261 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1262 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1264 if(enc->coded_frame->key_frame)
1265 pkt.flags |= AV_PKT_FLAG_KEY;
1266 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1269 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1270 // enc->frame_number-1, ret, enc->pict_type);
1271 /* if two pass, output log */
1272 if (ost->logfile && enc->stats_out) {
1273 fprintf(ost->logfile, "%s", enc->stats_out);
1278 ost->frame_number++;
1282 static double psnr(double d){
1283 return -10.0*log(d)/log(10.0);
1286 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1289 AVCodecContext *enc;
1291 double ti1, bitrate, avg_bitrate;
1293 /* this is executed just the first time do_video_stats is called */
1295 vstats_file = fopen(vstats_filename, "w");
1302 enc = ost->st->codec;
1303 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1304 frame_number = ost->frame_number;
1305 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1306 if (enc->flags&CODEC_FLAG_PSNR)
1307 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1309 fprintf(vstats_file,"f_size= %6d ", frame_size);
1310 /* compute pts value */
1311 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1315 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1316 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1317 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1318 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1319 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1323 static void print_report(AVFormatContext **output_files,
1324 AVOutputStream **ost_table, int nb_ostreams,
1328 AVOutputStream *ost;
1329 AVFormatContext *oc;
1331 AVCodecContext *enc;
1332 int frame_number, vid, i;
1333 double bitrate, ti1, pts;
1334 static int64_t last_time = -1;
1335 static int qp_histogram[52];
1337 if (!is_last_report) {
1339 /* display the report every 0.5 seconds */
1340 cur_time = av_gettime();
1341 if (last_time == -1) {
1342 last_time = cur_time;
1345 if ((cur_time - last_time) < 500000)
1347 last_time = cur_time;
1351 oc = output_files[0];
1353 total_size = avio_size(oc->pb);
1354 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1355 total_size= avio_tell(oc->pb);
1360 for(i=0;i<nb_ostreams;i++) {
1362 enc = ost->st->codec;
1363 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1364 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1365 !ost->st->stream_copy ?
1366 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1368 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1369 float t = (av_gettime()-timer_start) / 1000000.0;
1371 frame_number = ost->frame_number;
1372 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1373 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1374 !ost->st->stream_copy ?
1375 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1377 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1380 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1381 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1384 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1386 if (enc->flags&CODEC_FLAG_PSNR){
1388 double error, error_sum=0;
1389 double scale, scale_sum=0;
1390 char type[3]= {'Y','U','V'};
1391 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1394 error= enc->error[j];
1395 scale= enc->width*enc->height*255.0*255.0*frame_number;
1397 error= enc->coded_frame->error[j];
1398 scale= enc->width*enc->height*255.0*255.0;
1403 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1405 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1409 /* compute min output value */
1410 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1411 if ((pts < ti1) && (pts > 0))
1417 if (verbose || is_last_report) {
1418 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1420 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1421 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1422 (double)total_size / 1024, ti1, bitrate);
1424 if (nb_frames_dup || nb_frames_drop)
1425 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1426 nb_frames_dup, nb_frames_drop);
1429 fprintf(stderr, "%s \r", buf);
1434 if (is_last_report && verbose >= 0){
1435 int64_t raw= audio_size + video_size + extra_size;
1436 fprintf(stderr, "\n");
1437 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1441 100.0*(total_size - raw)/raw
1446 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1447 static int output_packet(AVInputStream *ist, int ist_index,
1448 AVOutputStream **ost_table, int nb_ostreams,
1449 const AVPacket *pkt)
1451 AVFormatContext *os;
1452 AVOutputStream *ost;
1456 void *buffer_to_free;
1457 static unsigned int samples_size= 0;
1458 AVSubtitle subtitle, *subtitle_to_free;
1459 int64_t pkt_pts = AV_NOPTS_VALUE;
1461 int frame_available;
1465 int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1467 if(ist->next_pts == AV_NOPTS_VALUE)
1468 ist->next_pts= ist->pts;
1472 av_init_packet(&avpkt);
1480 if(pkt->dts != AV_NOPTS_VALUE)
1481 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1482 if(pkt->pts != AV_NOPTS_VALUE)
1483 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1485 //while we have more to decode or while the decoder did output something on EOF
1486 while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1487 uint8_t *data_buf, *decoded_data_buf;
1488 int data_size, decoded_data_size;
1490 ist->pts= ist->next_pts;
1492 if(avpkt.size && avpkt.size != pkt->size &&
1493 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1494 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1495 ist->showed_multi_packet_warning=1;
1498 /* decode the packet if needed */
1499 decoded_data_buf = NULL; /* fail safe */
1500 decoded_data_size= 0;
1501 data_buf = avpkt.data;
1502 data_size = avpkt.size;
1503 subtitle_to_free = NULL;
1504 if (ist->decoding_needed) {
1505 switch(ist->st->codec->codec_type) {
1506 case AVMEDIA_TYPE_AUDIO:{
1507 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1508 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1510 samples= av_malloc(samples_size);
1512 decoded_data_size= samples_size;
1513 /* XXX: could avoid copy if PCM 16 bits with same
1514 endianness as CPU */
1515 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1522 /* Some bug in mpeg audio decoder gives */
1523 /* decoded_data_size < 0, it seems they are overflows */
1524 if (decoded_data_size <= 0) {
1525 /* no audio frame */
1528 decoded_data_buf = (uint8_t *)samples;
1529 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1530 (ist->st->codec->sample_rate * ist->st->codec->channels);
1532 case AVMEDIA_TYPE_VIDEO:
1533 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1534 /* XXX: allocate picture correctly */
1535 avcodec_get_frame_defaults(&picture);
1536 avpkt.pts = pkt_pts;
1537 avpkt.dts = ist->pts;
1538 pkt_pts = AV_NOPTS_VALUE;
1540 ret = avcodec_decode_video2(ist->st->codec,
1541 &picture, &got_picture, &avpkt);
1542 ist->st->quality= picture.quality;
1546 /* no picture yet */
1547 goto discard_packet;
1549 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1550 if (ist->st->codec->time_base.num != 0) {
1551 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1552 ist->next_pts += ((int64_t)AV_TIME_BASE *
1553 ist->st->codec->time_base.num * ticks) /
1554 ist->st->codec->time_base.den;
1558 case AVMEDIA_TYPE_SUBTITLE:
1559 ret = avcodec_decode_subtitle2(ist->st->codec,
1560 &subtitle, &got_picture, &avpkt);
1564 goto discard_packet;
1566 subtitle_to_free = &subtitle;
1573 switch(ist->st->codec->codec_type) {
1574 case AVMEDIA_TYPE_AUDIO:
1575 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1576 ist->st->codec->sample_rate;
1578 case AVMEDIA_TYPE_VIDEO:
1579 if (ist->st->codec->time_base.num != 0) {
1580 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1581 ist->next_pts += ((int64_t)AV_TIME_BASE *
1582 ist->st->codec->time_base.num * ticks) /
1583 ist->st->codec->time_base.den;
1591 buffer_to_free = NULL;
1592 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1593 pre_process_video_frame(ist, (AVPicture *)&picture,
1598 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1600 if (ist->st->sample_aspect_ratio.num) sar = ist->st->sample_aspect_ratio;
1601 else sar = ist->st->codec->sample_aspect_ratio;
1602 // add it to be filtered
1603 av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1609 // preprocess audio (volume)
1610 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1611 if (audio_volume != 256) {
1614 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1615 int v = ((*volp) * audio_volume + 128) >> 8;
1616 if (v < -32768) v = -32768;
1617 if (v > 32767) v = 32767;
1623 /* frame rate emulation */
1625 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1626 int64_t now = av_gettime() - ist->start;
1631 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1632 !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1634 /* if output time reached then transcode raw format,
1635 encode packets and output them */
1636 if (start_time == 0 || ist->pts >= start_time)
1638 while (frame_available) {
1639 AVRational ist_pts_tb;
1640 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1641 get_filtered_video_frame(ist->output_video_filter, &picture, &ist->picref, &ist_pts_tb);
1643 ist->pts = av_rescale_q(ist->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1645 for(i=0;i<nb_ostreams;i++) {
1649 if (ost->source_index == ist_index) {
1650 os = output_files[ost->file_index];
1652 /* set the input output pts pairs */
1653 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1655 if (ost->encoding_needed) {
1656 av_assert0(ist->decoding_needed);
1657 switch(ost->st->codec->codec_type) {
1658 case AVMEDIA_TYPE_AUDIO:
1659 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1661 case AVMEDIA_TYPE_VIDEO:
1663 if (ist->picref->video)
1664 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1666 do_video_out(os, ost, ist, &picture, &frame_size);
1667 if (vstats_filename && frame_size)
1668 do_video_stats(os, ost, frame_size);
1670 case AVMEDIA_TYPE_SUBTITLE:
1671 do_subtitle_out(os, ost, ist, &subtitle,
1678 AVFrame avframe; //FIXME/XXX remove this
1680 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1682 av_init_packet(&opkt);
1684 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1687 /* no reencoding needed : output the packet directly */
1688 /* force the input stream PTS */
1690 avcodec_get_frame_defaults(&avframe);
1691 ost->st->codec->coded_frame= &avframe;
1692 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1694 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1695 audio_size += data_size;
1696 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1697 video_size += data_size;
1701 opkt.stream_index= ost->index;
1702 if(pkt->pts != AV_NOPTS_VALUE)
1703 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1705 opkt.pts= AV_NOPTS_VALUE;
1707 if (pkt->dts == AV_NOPTS_VALUE)
1708 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1710 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1711 opkt.dts -= ost_tb_start_time;
1713 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1714 opkt.flags= pkt->flags;
1716 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1717 if( ost->st->codec->codec_id != CODEC_ID_H264
1718 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1719 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1721 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1722 opkt.destruct= av_destruct_packet;
1724 opkt.data = data_buf;
1725 opkt.size = data_size;
1728 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1729 ost->st->codec->frame_number++;
1730 ost->frame_number++;
1731 av_free_packet(&opkt);
1737 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1738 ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1740 avfilter_unref_buffer(ist->picref);
1743 av_free(buffer_to_free);
1744 /* XXX: allocate the subtitles in the codec ? */
1745 if (subtitle_to_free) {
1746 avsubtitle_free(subtitle_to_free);
1747 subtitle_to_free = NULL;
1754 for(i=0;i<nb_ostreams;i++) {
1756 if (ost->source_index == ist_index) {
1757 AVCodecContext *enc= ost->st->codec;
1758 os = output_files[ost->file_index];
1760 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1762 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1765 if (ost->encoding_needed) {
1769 av_init_packet(&pkt);
1770 pkt.stream_index= ost->index;
1772 switch(ost->st->codec->codec_type) {
1773 case AVMEDIA_TYPE_AUDIO:
1774 fifo_bytes = av_fifo_size(ost->fifo);
1776 /* encode any samples remaining in fifo */
1777 if (fifo_bytes > 0) {
1778 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1779 int fs_tmp = enc->frame_size;
1781 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1782 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1783 enc->frame_size = fifo_bytes / (osize * enc->channels);
1785 int frame_bytes = enc->frame_size*osize*enc->channels;
1786 if (allocated_audio_buf_size < frame_bytes)
1788 memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1791 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1792 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1793 ost->st->time_base.num, enc->sample_rate);
1794 enc->frame_size = fs_tmp;
1797 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1800 fprintf(stderr, "Audio encoding failed\n");
1804 pkt.flags |= AV_PKT_FLAG_KEY;
1806 case AVMEDIA_TYPE_VIDEO:
1807 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1809 fprintf(stderr, "Video encoding failed\n");
1813 if(enc->coded_frame && enc->coded_frame->key_frame)
1814 pkt.flags |= AV_PKT_FLAG_KEY;
1815 if (ost->logfile && enc->stats_out) {
1816 fprintf(ost->logfile, "%s", enc->stats_out);
1825 pkt.data= bit_buffer;
1827 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1828 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1829 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1841 static void print_sdp(AVFormatContext **avc, int n)
1845 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1846 printf("SDP:\n%s\n", sdp);
1850 static int copy_chapters(int infile, int outfile)
1852 AVFormatContext *is = input_files[infile];
1853 AVFormatContext *os = output_files[outfile];
1856 for (i = 0; i < is->nb_chapters; i++) {
1857 AVChapter *in_ch = is->chapters[i], *out_ch;
1858 int64_t ts_off = av_rescale_q(start_time - input_files_ts_offset[infile],
1859 AV_TIME_BASE_Q, in_ch->time_base);
1860 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
1861 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1864 if (in_ch->end < ts_off)
1866 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1869 out_ch = av_mallocz(sizeof(AVChapter));
1871 return AVERROR(ENOMEM);
1873 out_ch->id = in_ch->id;
1874 out_ch->time_base = in_ch->time_base;
1875 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1876 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1878 if (metadata_chapters_autocopy)
1879 av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1882 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1884 return AVERROR(ENOMEM);
1885 os->chapters[os->nb_chapters - 1] = out_ch;
1890 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1891 AVCodecContext *avctx)
1897 for (p = kf; *p; p++)
1900 ost->forced_kf_count = n;
1901 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1902 if (!ost->forced_kf_pts) {
1903 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1906 for (i = 0; i < n; i++) {
1907 p = i ? strchr(p, ',') + 1 : kf;
1908 t = parse_time_or_die("force_key_frames", p, 1);
1909 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1914 * The following code is the main loop of the file converter
1916 static int transcode(AVFormatContext **output_files,
1917 int nb_output_files,
1918 AVFormatContext **input_files,
1920 AVStreamMap *stream_maps, int nb_stream_maps)
1922 int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1923 AVFormatContext *is, *os;
1924 AVCodecContext *codec, *icodec;
1925 AVOutputStream *ost, **ost_table = NULL;
1926 AVInputStream *ist, **ist_table = NULL;
1927 AVInputFile *file_table;
1931 uint8_t no_packet[MAX_FILES]={0};
1932 int no_packet_count=0;
1934 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1938 /* input stream init */
1940 for(i=0;i<nb_input_files;i++) {
1941 is = input_files[i];
1942 file_table[i].ist_index = j;
1943 file_table[i].nb_streams = is->nb_streams;
1944 j += is->nb_streams;
1948 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1952 for(i=0;i<nb_istreams;i++) {
1953 ist = av_mallocz(sizeof(AVInputStream));
1959 for(i=0;i<nb_input_files;i++) {
1960 is = input_files[i];
1961 for(k=0;k<is->nb_streams;k++) {
1962 ist = ist_table[j++];
1963 ist->st = is->streams[k];
1964 ist->file_index = i;
1966 ist->discard = 1; /* the stream is discarded by default
1970 ist->start = av_gettime();
1975 /* output stream init */
1977 for(i=0;i<nb_output_files;i++) {
1978 os = output_files[i];
1979 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1980 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1981 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1982 ret = AVERROR(EINVAL);
1985 nb_ostreams += os->nb_streams;
1987 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1988 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1989 ret = AVERROR(EINVAL);
1993 /* Sanity check the mapping args -- do the input files & streams exist? */
1994 for(i=0;i<nb_stream_maps;i++) {
1995 int fi = stream_maps[i].file_index;
1996 int si = stream_maps[i].stream_index;
1998 if (fi < 0 || fi > nb_input_files - 1 ||
1999 si < 0 || si > file_table[fi].nb_streams - 1) {
2000 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2001 ret = AVERROR(EINVAL);
2004 fi = stream_maps[i].sync_file_index;
2005 si = stream_maps[i].sync_stream_index;
2006 if (fi < 0 || fi > nb_input_files - 1 ||
2007 si < 0 || si > file_table[fi].nb_streams - 1) {
2008 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2009 ret = AVERROR(EINVAL);
2014 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2018 for(k=0;k<nb_output_files;k++) {
2019 os = output_files[k];
2020 for(i=0;i<os->nb_streams;i++,n++) {
2022 ost = ost_table[n] = output_streams_for_file[k][i];
2023 ost->st = os->streams[i];
2024 if (nb_stream_maps > 0) {
2025 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2026 stream_maps[n].stream_index;
2028 /* Sanity check that the stream types match */
2029 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2030 int i= ost->file_index;
2031 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2032 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2033 stream_maps[n].file_index, stream_maps[n].stream_index,
2034 ost->file_index, ost->index);
2039 int best_nb_frames=-1;
2040 /* get corresponding input stream index : we select the first one with the right type */
2042 for(j=0;j<nb_istreams;j++) {
2047 AVFormatContext *f= input_files[ ist->file_index ];
2049 for(pi=0; pi<f->nb_programs; pi++){
2050 AVProgram *p= f->programs[pi];
2051 if(p->id == opt_programid)
2052 for(si=0; si<p->nb_stream_indexes; si++){
2053 if(f->streams[ p->stream_index[si] ] == ist->st)
2058 if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2059 ist->st->codec->codec_type == ost->st->codec->codec_type) {
2060 if(best_nb_frames < ist->st->codec_info_nb_frames){
2061 best_nb_frames= ist->st->codec_info_nb_frames;
2062 ost->source_index = j;
2069 if(! opt_programid) {
2070 /* try again and reuse existing stream */
2071 for(j=0;j<nb_istreams;j++) {
2073 if ( ist->st->codec->codec_type == ost->st->codec->codec_type
2074 && ist->st->discard != AVDISCARD_ALL) {
2075 ost->source_index = j;
2081 int i= ost->file_index;
2082 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2083 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2084 ost->file_index, ost->index);
2089 ist = ist_table[ost->source_index];
2091 ost->sync_ist = (nb_stream_maps > 0) ?
2092 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2093 stream_maps[n].sync_stream_index] : ist;
2097 /* for each output stream, we compute the right encoding parameters */
2098 for(i=0;i<nb_ostreams;i++) {
2100 os = output_files[ost->file_index];
2101 ist = ist_table[ost->source_index];
2103 codec = ost->st->codec;
2104 icodec = ist->st->codec;
2106 if (metadata_streams_autocopy)
2107 av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2108 AV_METADATA_DONT_OVERWRITE);
2110 ost->st->disposition = ist->st->disposition;
2111 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2112 codec->chroma_sample_location = icodec->chroma_sample_location;
2114 if (ost->st->stream_copy) {
2115 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2117 if (extra_size > INT_MAX)
2120 /* if stream_copy is selected, no need to decode or encode */
2121 codec->codec_id = icodec->codec_id;
2122 codec->codec_type = icodec->codec_type;
2124 if(!codec->codec_tag){
2125 if( !os->oformat->codec_tag
2126 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2127 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2128 codec->codec_tag = icodec->codec_tag;
2131 codec->bit_rate = icodec->bit_rate;
2132 codec->rc_max_rate = icodec->rc_max_rate;
2133 codec->rc_buffer_size = icodec->rc_buffer_size;
2134 codec->extradata= av_mallocz(extra_size);
2135 if (!codec->extradata)
2137 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2138 codec->extradata_size= icodec->extradata_size;
2139 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){
2140 codec->time_base = icodec->time_base;
2141 codec->time_base.num *= icodec->ticks_per_frame;
2142 av_reduce(&codec->time_base.num, &codec->time_base.den,
2143 codec->time_base.num, codec->time_base.den, INT_MAX);
2145 codec->time_base = ist->st->time_base;
2146 switch(codec->codec_type) {
2147 case AVMEDIA_TYPE_AUDIO:
2148 if(audio_volume != 256) {
2149 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2152 codec->channel_layout = icodec->channel_layout;
2153 codec->sample_rate = icodec->sample_rate;
2154 codec->channels = icodec->channels;
2155 codec->frame_size = icodec->frame_size;
2156 codec->block_align= icodec->block_align;
2157 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2158 codec->block_align= 0;
2159 if(codec->codec_id == CODEC_ID_AC3)
2160 codec->block_align= 0;
2162 case AVMEDIA_TYPE_VIDEO:
2163 codec->pix_fmt = icodec->pix_fmt;
2164 codec->width = icodec->width;
2165 codec->height = icodec->height;
2166 codec->has_b_frames = icodec->has_b_frames;
2168 case AVMEDIA_TYPE_SUBTITLE:
2169 codec->width = icodec->width;
2170 codec->height = icodec->height;
2176 switch(codec->codec_type) {
2177 case AVMEDIA_TYPE_AUDIO:
2178 ost->fifo= av_fifo_alloc(1024);
2181 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2182 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2183 icodec->request_channels = codec->channels;
2184 ist->decoding_needed = 1;
2185 ost->encoding_needed = 1;
2186 ost->resample_sample_fmt = icodec->sample_fmt;
2187 ost->resample_sample_rate = icodec->sample_rate;
2188 ost->resample_channels = icodec->channels;
2190 case AVMEDIA_TYPE_VIDEO:
2191 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2192 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2195 ost->video_resample = (codec->width != icodec->width ||
2196 codec->height != icodec->height ||
2197 (codec->pix_fmt != icodec->pix_fmt));
2198 if (ost->video_resample) {
2199 #if !CONFIG_AVFILTER
2200 avcodec_get_frame_defaults(&ost->pict_tmp);
2201 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2202 codec->width, codec->height)) {
2203 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2206 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2207 ost->img_resample_ctx = sws_getContext(
2214 sws_flags, NULL, NULL, NULL);
2215 if (ost->img_resample_ctx == NULL) {
2216 fprintf(stderr, "Cannot get resampling context\n");
2220 ost->original_height = icodec->height;
2221 ost->original_width = icodec->width;
2223 codec->bits_per_raw_sample= 0;
2225 ost->resample_height = icodec->height;
2226 ost->resample_width = icodec->width;
2227 ost->resample_pix_fmt= icodec->pix_fmt;
2228 ost->encoding_needed = 1;
2229 ist->decoding_needed = 1;
2232 if (configure_filters(ist, ost)) {
2233 fprintf(stderr, "Error opening filters!\n");
2238 case AVMEDIA_TYPE_SUBTITLE:
2239 ost->encoding_needed = 1;
2240 ist->decoding_needed = 1;
2247 if (ost->encoding_needed &&
2248 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2249 char logfilename[1024];
2252 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2253 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2255 if (codec->flags & CODEC_FLAG_PASS1) {
2256 f = fopen(logfilename, "wb");
2258 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2264 size_t logbuffer_size;
2265 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2266 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2269 codec->stats_in = logbuffer;
2273 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2274 int size= codec->width * codec->height;
2275 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2280 bit_buffer = av_malloc(bit_buffer_size);
2282 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2284 ret = AVERROR(ENOMEM);
2288 /* open each encoder */
2289 for(i=0;i<nb_ostreams;i++) {
2291 if (ost->encoding_needed) {
2292 AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2293 AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2295 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2297 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2298 ost->st->codec->codec_id, ost->file_index, ost->index);
2299 ret = AVERROR(EINVAL);
2302 if (dec->subtitle_header) {
2303 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2304 if (!ost->st->codec->subtitle_header) {
2305 ret = AVERROR(ENOMEM);
2308 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2309 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2311 if (avcodec_open(ost->st->codec, codec) < 0) {
2312 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2313 ost->file_index, ost->index);
2314 ret = AVERROR(EINVAL);
2317 extra_size += ost->st->codec->extradata_size;
2321 /* open each decoder */
2322 for(i=0;i<nb_istreams;i++) {
2324 if (ist->decoding_needed) {
2325 AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2327 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2329 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2330 ist->st->codec->codec_id, ist->file_index, ist->index);
2331 ret = AVERROR(EINVAL);
2334 if (avcodec_open(ist->st->codec, codec) < 0) {
2335 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2336 ist->file_index, ist->index);
2337 ret = AVERROR(EINVAL);
2340 //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2341 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2346 for(i=0;i<nb_istreams;i++) {
2350 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2351 ist->next_pts = AV_NOPTS_VALUE;
2352 init_pts_correction(&ist->pts_ctx);
2356 /* set meta data information from input file if required */
2357 for (i=0;i<nb_meta_data_maps;i++) {
2358 AVFormatContext *files[2];
2359 AVMetadata **meta[2];
2362 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2363 if ((index) < 0 || (index) >= (nb_elems)) {\
2364 snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2366 ret = AVERROR(EINVAL);\
2370 int out_file_index = meta_data_maps[i][0].file;
2371 int in_file_index = meta_data_maps[i][1].file;
2372 if (in_file_index < 0 || out_file_index < 0)
2374 METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2375 METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2377 files[0] = output_files[out_file_index];
2378 files[1] = input_files[in_file_index];
2380 for (j = 0; j < 2; j++) {
2381 AVMetaDataMap *map = &meta_data_maps[i][j];
2383 switch (map->type) {
2385 meta[j] = &files[j]->metadata;
2388 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2389 meta[j] = &files[j]->streams[map->index]->metadata;
2392 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2393 meta[j] = &files[j]->chapters[map->index]->metadata;
2396 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2397 meta[j] = &files[j]->programs[map->index]->metadata;
2402 av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2405 /* copy global metadata by default */
2406 if (metadata_global_autocopy) {
2408 for (i = 0; i < nb_output_files; i++)
2409 av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2410 AV_METADATA_DONT_OVERWRITE);
2413 /* copy chapters according to chapter maps */
2414 for (i = 0; i < nb_chapter_maps; i++) {
2415 int infile = chapter_maps[i].in_file;
2416 int outfile = chapter_maps[i].out_file;
2418 if (infile < 0 || outfile < 0)
2420 if (infile >= nb_input_files) {
2421 snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2422 ret = AVERROR(EINVAL);
2425 if (outfile >= nb_output_files) {
2426 snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2427 ret = AVERROR(EINVAL);
2430 copy_chapters(infile, outfile);
2433 /* copy chapters from the first input file that has them*/
2434 if (!nb_chapter_maps)
2435 for (i = 0; i < nb_input_files; i++) {
2436 if (!input_files[i]->nb_chapters)
2439 for (j = 0; j < nb_output_files; j++)
2440 if ((ret = copy_chapters(i, j)) < 0)
2445 /* open files and write file headers */
2446 for(i=0;i<nb_output_files;i++) {
2447 os = output_files[i];
2448 if (av_write_header(os) < 0) {
2449 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2450 ret = AVERROR(EINVAL);
2453 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2459 /* dump the file output parameters - cannot be done before in case
2461 for(i=0;i<nb_output_files;i++) {
2462 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2465 /* dump the stream mapping */
2467 fprintf(stderr, "Stream mapping:\n");
2468 for(i=0;i<nb_ostreams;i++) {
2470 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2471 ist_table[ost->source_index]->file_index,
2472 ist_table[ost->source_index]->index,
2475 if (ost->sync_ist != ist_table[ost->source_index])
2476 fprintf(stderr, " [sync #%d.%d]",
2477 ost->sync_ist->file_index,
2478 ost->sync_ist->index);
2479 fprintf(stderr, "\n");
2484 fprintf(stderr, "%s\n", error);
2489 print_sdp(output_files, nb_output_files);
2492 if (!using_stdin && verbose >= 0) {
2493 fprintf(stderr, "Press [q] to stop encoding\n");
2494 url_set_interrupt_cb(decode_interrupt_cb);
2498 timer_start = av_gettime();
2500 for(; received_sigterm == 0;) {
2501 int file_index, ist_index;
2509 /* if 'q' pressed, exits */
2513 /* read_key() returns 0 on EOF */
2519 /* select the stream that we must read now by looking at the
2520 smallest output pts */
2522 for(i=0;i<nb_ostreams;i++) {
2525 os = output_files[ost->file_index];
2526 ist = ist_table[ost->source_index];
2527 if(ist->is_past_recording_time || no_packet[ist->file_index])
2529 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2530 ipts = (double)ist->pts;
2531 if (!file_table[ist->file_index].eof_reached){
2532 if(ipts < ipts_min) {
2534 if(input_sync ) file_index = ist->file_index;
2536 if(opts < opts_min) {
2538 if(!input_sync) file_index = ist->file_index;
2541 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2546 /* if none, if is finished */
2547 if (file_index < 0) {
2548 if(no_packet_count){
2550 memset(no_packet, 0, sizeof(no_packet));
2557 /* finish if limit size exhausted */
2558 if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2561 /* read a frame from it and output it in the fifo */
2562 is = input_files[file_index];
2563 ret= av_read_frame(is, &pkt);
2564 if(ret == AVERROR(EAGAIN)){
2565 no_packet[file_index]=1;
2570 file_table[file_index].eof_reached = 1;
2578 memset(no_packet, 0, sizeof(no_packet));
2581 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2582 is->streams[pkt.stream_index]);
2584 /* the following test is needed in case new streams appear
2585 dynamically in stream : we ignore them */
2586 if (pkt.stream_index >= file_table[file_index].nb_streams)
2587 goto discard_packet;
2588 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2589 ist = ist_table[ist_index];
2591 goto discard_packet;
2593 if (pkt.dts != AV_NOPTS_VALUE)
2594 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2595 if (pkt.pts != AV_NOPTS_VALUE)
2596 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2598 if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2599 && input_files_ts_scale[file_index][pkt.stream_index]){
2600 if(pkt.pts != AV_NOPTS_VALUE)
2601 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2602 if(pkt.dts != AV_NOPTS_VALUE)
2603 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2606 // fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
2607 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2608 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2609 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2610 int64_t delta= pkt_dts - ist->next_pts;
2611 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2612 input_files_ts_offset[ist->file_index]-= delta;
2614 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2615 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2616 if(pkt.pts != AV_NOPTS_VALUE)
2617 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2621 /* finish if recording time exhausted */
2622 if (recording_time != INT64_MAX &&
2623 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2624 ist->is_past_recording_time = 1;
2625 goto discard_packet;
2628 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2629 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2632 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2633 ist->file_index, ist->index);
2636 av_free_packet(&pkt);
2641 av_free_packet(&pkt);
2643 /* dump report by using the output first video and audio streams */
2644 print_report(output_files, ost_table, nb_ostreams, 0);
2647 /* at the end of stream, we must flush the decoder buffers */
2648 for(i=0;i<nb_istreams;i++) {
2650 if (ist->decoding_needed) {
2651 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2657 /* write the trailer if needed and close file */
2658 for(i=0;i<nb_output_files;i++) {
2659 os = output_files[i];
2660 av_write_trailer(os);
2663 /* dump report by using the first video and audio streams */
2664 print_report(output_files, ost_table, nb_ostreams, 1);
2666 /* close each encoder */
2667 for(i=0;i<nb_ostreams;i++) {
2669 if (ost->encoding_needed) {
2670 av_freep(&ost->st->codec->stats_in);
2671 avcodec_close(ost->st->codec);
2675 /* close each decoder */
2676 for(i=0;i<nb_istreams;i++) {
2678 if (ist->decoding_needed) {
2679 avcodec_close(ist->st->codec);
2683 avfilter_graph_free(&graph);
2690 av_freep(&bit_buffer);
2691 av_free(file_table);
2694 for(i=0;i<nb_istreams;i++) {
2701 for(i=0;i<nb_ostreams;i++) {
2704 if (ost->st->stream_copy)
2705 av_freep(&ost->st->codec->extradata);
2707 fclose(ost->logfile);
2708 ost->logfile = NULL;
2710 av_fifo_free(ost->fifo); /* works even if fifo is not
2711 initialized but set to zero */
2712 av_freep(&ost->st->codec->subtitle_header);
2713 av_free(ost->pict_tmp.data[0]);
2714 av_free(ost->forced_kf_pts);
2715 if (ost->video_resample)
2716 sws_freeContext(ost->img_resample_ctx);
2718 audio_resample_close(ost->resample);
2719 if (ost->reformat_ctx)
2720 av_audio_convert_free(ost->reformat_ctx);
2729 static void opt_format(const char *arg)
2731 last_asked_format = arg;
2734 static void opt_video_rc_override_string(const char *arg)
2736 video_rc_override_string = arg;
2739 static int opt_me_threshold(const char *opt, const char *arg)
2741 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2745 static int opt_verbose(const char *opt, const char *arg)
2747 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2751 static int opt_frame_rate(const char *opt, const char *arg)
2753 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2754 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2760 static int opt_bitrate(const char *opt, const char *arg)
2762 int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2764 opt_default(opt, arg);
2766 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2767 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2772 static int opt_frame_crop(const char *opt, const char *arg)
2774 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2775 return AVERROR(EINVAL);
2778 static void opt_frame_size(const char *arg)
2780 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2781 fprintf(stderr, "Incorrect frame size\n");
2786 static int opt_pad(const char *opt, const char *arg) {
2787 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2791 static void opt_frame_pix_fmt(const char *arg)
2793 if (strcmp(arg, "list")) {
2794 frame_pix_fmt = av_get_pix_fmt(arg);
2795 if (frame_pix_fmt == PIX_FMT_NONE) {
2796 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2805 static void opt_frame_aspect_ratio(const char *arg)
2812 p = strchr(arg, ':');
2814 x = strtol(arg, &end, 10);
2816 y = strtol(end+1, &end, 10);
2818 ar = (double)x / (double)y;
2820 ar = strtod(arg, NULL);
2823 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2826 frame_aspect_ratio = ar;
2829 static int opt_metadata(const char *opt, const char *arg)
2831 char *mid= strchr(arg, '=');
2834 fprintf(stderr, "Missing =\n");
2839 av_metadata_set2(&metadata, arg, mid, 0);
2844 static void opt_qscale(const char *arg)
2846 video_qscale = atof(arg);
2847 if (video_qscale <= 0 ||
2848 video_qscale > 255) {
2849 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2854 static void opt_top_field_first(const char *arg)
2856 top_field_first= atoi(arg);
2859 static int opt_thread_count(const char *opt, const char *arg)
2861 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2864 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2869 static void opt_audio_sample_fmt(const char *arg)
2871 if (strcmp(arg, "list")) {
2872 audio_sample_fmt = av_get_sample_fmt(arg);
2873 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2874 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2878 list_fmts(av_get_sample_fmt_string, AV_SAMPLE_FMT_NB);
2883 static int opt_audio_rate(const char *opt, const char *arg)
2885 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2889 static int opt_audio_channels(const char *opt, const char *arg)
2891 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2895 static void opt_video_channel(const char *arg)
2897 video_channel = strtol(arg, NULL, 0);
2900 static void opt_video_standard(const char *arg)
2902 video_standard = av_strdup(arg);
2905 static void opt_codec(int *pstream_copy, char **pcodec_name,
2906 int codec_type, const char *arg)
2908 av_freep(pcodec_name);
2909 if (!strcmp(arg, "copy")) {
2912 *pcodec_name = av_strdup(arg);
2916 static void opt_audio_codec(const char *arg)
2918 opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2921 static void opt_video_codec(const char *arg)
2923 opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2926 static void opt_subtitle_codec(const char *arg)
2928 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2931 static int opt_codec_tag(const char *opt, const char *arg)
2934 uint32_t *codec_tag;
2936 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2937 !strcmp(opt, "vtag") ? &video_codec_tag :
2938 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2942 *codec_tag = strtol(arg, &tail, 0);
2944 *codec_tag = AV_RL32(arg);
2949 static void opt_map(const char *arg)
2954 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2955 m = &stream_maps[nb_stream_maps-1];
2957 m->file_index = strtol(arg, &p, 0);
2961 m->stream_index = strtol(p, &p, 0);
2964 m->sync_file_index = strtol(p, &p, 0);
2967 m->sync_stream_index = strtol(p, &p, 0);
2969 m->sync_file_index = m->file_index;
2970 m->sync_stream_index = m->stream_index;
2974 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
2985 *index = strtol(++arg, endptr, 0);
2988 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2995 static void opt_map_metadata(const char *arg)
2997 AVMetaDataMap *m, *m1;
3000 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3001 &nb_meta_data_maps, nb_meta_data_maps + 1);
3003 m = &meta_data_maps[nb_meta_data_maps - 1][0];
3004 m->file = strtol(arg, &p, 0);
3005 parse_meta_type(p, &m->type, &m->index, &p);
3009 m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3010 m1->file = strtol(p, &p, 0);
3011 parse_meta_type(p, &m1->type, &m1->index, &p);
3013 if (m->type == 'g' || m1->type == 'g')
3014 metadata_global_autocopy = 0;
3015 if (m->type == 's' || m1->type == 's')
3016 metadata_streams_autocopy = 0;
3017 if (m->type == 'c' || m1->type == 'c')
3018 metadata_chapters_autocopy = 0;
3021 static void opt_map_meta_data(const char *arg)
3023 fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3024 "Use -map_metadata instead.\n");
3025 opt_map_metadata(arg);
3028 static void opt_map_chapters(const char *arg)
3033 chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3034 nb_chapter_maps + 1);
3035 c = &chapter_maps[nb_chapter_maps - 1];
3036 c->out_file = strtol(arg, &p, 0);
3040 c->in_file = strtol(p, &p, 0);
3043 static void opt_input_ts_scale(const char *arg)
3045 unsigned int stream;
3049 stream = strtol(arg, &p, 0);
3052 scale= strtod(p, &p);
3054 if(stream >= MAX_STREAMS)
3057 input_files_ts_scale[nb_input_files] = grow_array(input_files_ts_scale[nb_input_files], sizeof(*input_files_ts_scale[nb_input_files]), &nb_input_files_ts_scale[nb_input_files], stream + 1);
3058 input_files_ts_scale[nb_input_files][stream]= scale;
3061 static int opt_recording_time(const char *opt, const char *arg)
3063 recording_time = parse_time_or_die(opt, arg, 1);
3067 static int opt_start_time(const char *opt, const char *arg)
3069 start_time = parse_time_or_die(opt, arg, 1);
3073 static int opt_recording_timestamp(const char *opt, const char *arg)
3075 recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3079 static int opt_input_ts_offset(const char *opt, const char *arg)
3081 input_ts_offset = parse_time_or_die(opt, arg, 1);
3085 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3087 const char *codec_string = encoder ? "encoder" : "decoder";
3091 return CODEC_ID_NONE;
3093 avcodec_find_encoder_by_name(name) :
3094 avcodec_find_decoder_by_name(name);
3096 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3099 if(codec->type != type) {
3100 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3103 if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3104 strict > FF_COMPLIANCE_EXPERIMENTAL) {
3105 fprintf(stderr, "%s '%s' is experimental and might produce bad "
3106 "results.\nAdd '-strict experimental' if you want to use it.\n",
3107 codec_string, codec->name);
3109 avcodec_find_encoder(codec->id) :
3110 avcodec_find_decoder(codec->id);
3111 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3112 fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3113 codec_string, codec->name);
3119 static void opt_input_file(const char *filename)
3121 AVFormatContext *ic;
3122 AVFormatParameters params, *ap = ¶ms;
3123 AVInputFormat *file_iformat = NULL;
3124 int err, i, ret, rfps, rfps_base;
3127 if (last_asked_format) {
3128 if (!(file_iformat = av_find_input_format(last_asked_format))) {
3129 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3132 last_asked_format = NULL;
3135 if (!strcmp(filename, "-"))
3138 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3139 !strcmp(filename, "/dev/stdin");
3141 /* get default parameters from command line */
3142 ic = avformat_alloc_context();
3144 print_error(filename, AVERROR(ENOMEM));
3148 memset(ap, 0, sizeof(*ap));
3149 ap->prealloced_context = 1;
3150 ap->sample_rate = audio_sample_rate;
3151 ap->channels = audio_channels;
3152 ap->time_base.den = frame_rate.num;
3153 ap->time_base.num = frame_rate.den;
3154 ap->width = frame_width;
3155 ap->height = frame_height;
3156 ap->pix_fmt = frame_pix_fmt;
3157 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3158 ap->channel = video_channel;
3159 ap->standard = video_standard;
3161 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3163 ic->video_codec_id =
3164 find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0,
3165 avcodec_opts[AVMEDIA_TYPE_VIDEO ]->strict_std_compliance);
3166 ic->audio_codec_id =
3167 find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0,
3168 avcodec_opts[AVMEDIA_TYPE_AUDIO ]->strict_std_compliance);
3169 ic->subtitle_codec_id=
3170 find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3171 avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3172 ic->flags |= AVFMT_FLAG_NONBLOCK;
3174 /* open the input file with generic libav function */
3175 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3177 print_error(filename, err);
3183 for(i=0; i<ic->nb_streams; i++){
3184 ic->streams[i]->discard= AVDISCARD_ALL;
3186 for(i=0; i<ic->nb_programs; i++){
3187 AVProgram *p= ic->programs[i];
3188 if(p->id != opt_programid){
3189 p->discard = AVDISCARD_ALL;
3192 for(j=0; j<p->nb_stream_indexes; j++){
3193 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3198 fprintf(stderr, "Specified program id not found\n");
3204 ic->loop_input = loop_input;
3206 /* If not enough info to get the stream parameters, we decode the
3207 first frames to get it. (used in mpeg case for example) */
3208 ret = av_find_stream_info(ic);
3209 if (ret < 0 && verbose >= 0) {
3210 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3211 av_close_input_file(ic);
3215 timestamp = start_time;
3216 /* add the stream start time */
3217 if (ic->start_time != AV_NOPTS_VALUE)
3218 timestamp += ic->start_time;
3220 /* if seeking requested, we execute it */
3221 if (start_time != 0) {
3222 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3224 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3225 filename, (double)timestamp / AV_TIME_BASE);
3227 /* reset seek info */
3231 /* update the current parameters so that they match the one of the input stream */
3232 for(i=0;i<ic->nb_streams;i++) {
3233 AVStream *st = ic->streams[i];
3234 AVCodecContext *dec = st->codec;
3235 dec->thread_count = thread_count;
3236 input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3237 switch (dec->codec_type) {
3238 case AVMEDIA_TYPE_AUDIO:
3239 input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3240 set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3241 //fprintf(stderr, "\nInput Audio channels: %d", dec->channels);
3242 channel_layout = dec->channel_layout;
3243 audio_channels = dec->channels;
3244 audio_sample_rate = dec->sample_rate;
3245 audio_sample_fmt = dec->sample_fmt;
3247 st->discard= AVDISCARD_ALL;
3248 /* Note that av_find_stream_info can add more streams, and we
3249 * currently have no chance of setting up lowres decoding
3250 * early enough for them. */
3252 audio_sample_rate >>= dec->lowres;
3254 case AVMEDIA_TYPE_VIDEO:
3255 input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3256 set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3257 frame_height = dec->height;
3258 frame_width = dec->width;
3259 if(ic->streams[i]->sample_aspect_ratio.num)
3260 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3262 frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
3263 frame_aspect_ratio *= (float) dec->width / dec->height;
3264 frame_pix_fmt = dec->pix_fmt;
3265 rfps = ic->streams[i]->r_frame_rate.num;
3266 rfps_base = ic->streams[i]->r_frame_rate.den;
3268 dec->flags |= CODEC_FLAG_EMU_EDGE;
3269 frame_height >>= dec->lowres;
3270 frame_width >>= dec->lowres;
3271 dec->height = frame_height;
3272 dec->width = frame_width;
3275 dec->debug |= FF_DEBUG_MV;
3277 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3280 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3281 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3283 (float)rfps / rfps_base, rfps, rfps_base);
3285 /* update the current frame rate to match the stream frame rate */
3286 frame_rate.num = rfps;
3287 frame_rate.den = rfps_base;
3290 st->discard= AVDISCARD_ALL;
3291 else if(video_discard)
3292 st->discard= video_discard;
3294 case AVMEDIA_TYPE_DATA:
3296 case AVMEDIA_TYPE_SUBTITLE:
3297 input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3298 if(subtitle_disable)
3299 st->discard = AVDISCARD_ALL;
3301 case AVMEDIA_TYPE_ATTACHMENT:
3302 case AVMEDIA_TYPE_UNKNOWN:
3309 input_files[nb_input_files] = ic;
3310 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3311 /* dump the file content */
3313 av_dump_format(ic, nb_input_files, filename, 0);
3319 av_freep(&video_codec_name);
3320 av_freep(&audio_codec_name);
3321 av_freep(&subtitle_codec_name);
3324 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3325 int *has_subtitle_ptr)
3327 int has_video, has_audio, has_subtitle, i, j;
3328 AVFormatContext *ic;
3333 for(j=0;j<nb_input_files;j++) {
3334 ic = input_files[j];
3335 for(i=0;i<ic->nb_streams;i++) {
3336 AVCodecContext *enc = ic->streams[i]->codec;
3337 switch(enc->codec_type) {
3338 case AVMEDIA_TYPE_AUDIO:
3341 case AVMEDIA_TYPE_VIDEO:
3344 case AVMEDIA_TYPE_SUBTITLE:
3347 case AVMEDIA_TYPE_DATA:
3348 case AVMEDIA_TYPE_ATTACHMENT:
3349 case AVMEDIA_TYPE_UNKNOWN:
3356 *has_video_ptr = has_video;
3357 *has_audio_ptr = has_audio;
3358 *has_subtitle_ptr = has_subtitle;
3361 static void new_video_stream(AVFormatContext *oc, int file_idx)
3364 AVOutputStream *ost;
3365 AVCodecContext *video_enc;
3366 enum CodecID codec_id = CODEC_ID_NONE;
3367 AVCodec *codec= NULL;
3369 st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3371 fprintf(stderr, "Could not alloc stream\n");
3374 ost = new_output_stream(oc, file_idx);
3376 output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3377 if(!video_stream_copy){
3378 if (video_codec_name) {
3379 codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3380 avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3381 codec = avcodec_find_encoder_by_name(video_codec_name);
3382 output_codecs[nb_output_codecs-1] = codec;
3384 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3385 codec = avcodec_find_encoder(codec_id);
3389 avcodec_get_context_defaults3(st->codec, codec);
3390 ost->bitstream_filters = video_bitstream_filters;
3391 video_bitstream_filters= NULL;
3393 st->codec->thread_count= thread_count;
3395 video_enc = st->codec;
3398 video_enc->codec_tag= video_codec_tag;
3400 if( (video_global_header&1)
3401 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3402 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3403 avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3405 if(video_global_header&2){
3406 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3407 avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3410 if (video_stream_copy) {
3411 st->stream_copy = 1;
3412 video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3413 video_enc->sample_aspect_ratio =
3414 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3418 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3420 video_enc->codec_id = codec_id;
3421 set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3423 if (codec && codec->supported_framerates && !force_fps)
3424 fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3425 video_enc->time_base.den = fps.num;
3426 video_enc->time_base.num = fps.den;
3428 video_enc->width = frame_width;
3429 video_enc->height = frame_height;
3430 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3431 video_enc->pix_fmt = frame_pix_fmt;
3432 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3434 choose_pixel_fmt(st, codec);
3437 video_enc->gop_size = 0;
3438 if (video_qscale || same_quality) {
3439 video_enc->flags |= CODEC_FLAG_QSCALE;
3440 video_enc->global_quality=
3441 st->quality = FF_QP2LAMBDA * video_qscale;
3445 video_enc->intra_matrix = intra_matrix;
3447 video_enc->inter_matrix = inter_matrix;
3449 p= video_rc_override_string;
3452 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3454 fprintf(stderr, "error parsing rc_override\n");
3457 video_enc->rc_override=
3458 av_realloc(video_enc->rc_override,
3459 sizeof(RcOverride)*(i+1));
3460 video_enc->rc_override[i].start_frame= start;
3461 video_enc->rc_override[i].end_frame = end;
3463 video_enc->rc_override[i].qscale= q;
3464 video_enc->rc_override[i].quality_factor= 1.0;
3467 video_enc->rc_override[i].qscale= 0;
3468 video_enc->rc_override[i].quality_factor= -q/100.0;
3473 video_enc->rc_override_count=i;
3474 if (!video_enc->rc_initial_buffer_occupancy)
3475 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3476 video_enc->me_threshold= me_threshold;
3477 video_enc->intra_dc_precision= intra_dc_precision - 8;
3480 video_enc->flags|= CODEC_FLAG_PSNR;
3485 video_enc->flags |= CODEC_FLAG_PASS1;
3487 video_enc->flags |= CODEC_FLAG_PASS2;
3491 if (forced_key_frames)
3492 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3494 if (video_language) {
3495 av_metadata_set2(&st->metadata, "language", video_language, 0);
3496 av_freep(&video_language);
3499 /* reset some key parameters */
3501 av_freep(&video_codec_name);
3502 av_freep(&forced_key_frames);
3503 video_stream_copy = 0;
3504 frame_pix_fmt = PIX_FMT_NONE;
3507 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3510 AVOutputStream *ost;
3511 AVCodec *codec= NULL;
3512 AVCodecContext *audio_enc;
3513 enum CodecID codec_id = CODEC_ID_NONE;
3515 st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3517 fprintf(stderr, "Could not alloc stream\n");
3520 ost = new_output_stream(oc, file_idx);
3522 output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3523 if(!audio_stream_copy){
3524 if (audio_codec_name) {
3525 codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3526 avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3527 codec = avcodec_find_encoder_by_name(audio_codec_name);
3528 output_codecs[nb_output_codecs-1] = codec;
3530 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3531 codec = avcodec_find_encoder(codec_id);
3535 avcodec_get_context_defaults3(st->codec, codec);
3537 ost->bitstream_filters = audio_bitstream_filters;
3538 audio_bitstream_filters= NULL;
3540 st->codec->thread_count= thread_count;
3542 audio_enc = st->codec;
3543 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3546 audio_enc->codec_tag= audio_codec_tag;
3548 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3549 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3550 avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3552 if (audio_stream_copy) {
3553 st->stream_copy = 1;
3554 audio_enc->channels = audio_channels;
3555 audio_enc->sample_rate = audio_sample_rate;
3557 audio_enc->codec_id = codec_id;
3558 set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3560 if (audio_qscale > QSCALE_NONE) {
3561 audio_enc->flags |= CODEC_FLAG_QSCALE;
3562 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3564 audio_enc->channels = audio_channels;
3565 audio_enc->sample_fmt = audio_sample_fmt;
3566 audio_enc->sample_rate = audio_sample_rate;
3567 audio_enc->channel_layout = channel_layout;
3568 if (av_get_channel_layout_nb_channels(channel_layout) != audio_channels)
3569 audio_enc->channel_layout = 0;
3570 choose_sample_fmt(st, codec);
3571 choose_sample_rate(st, codec);
3573 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3574 if (audio_language) {
3575 av_metadata_set2(&st->metadata, "language", audio_language, 0);
3576 av_freep(&audio_language);
3579 /* reset some key parameters */
3581 av_freep(&audio_codec_name);
3582 audio_stream_copy = 0;
3585 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3588 AVOutputStream *ost;
3589 AVCodec *codec=NULL;
3590 AVCodecContext *subtitle_enc;
3591 enum CodecID codec_id = CODEC_ID_NONE;
3593 st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3595 fprintf(stderr, "Could not alloc stream\n");
3598 ost = new_output_stream(oc, file_idx);
3599 subtitle_enc = st->codec;
3600 output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3601 if(!subtitle_stream_copy){
3602 if (subtitle_codec_name) {
3603 codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3604 avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3605 codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
3607 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
3608 codec = avcodec_find_encoder(codec_id);
3611 avcodec_get_context_defaults3(st->codec, codec);
3613 ost->bitstream_filters = subtitle_bitstream_filters;
3614 subtitle_bitstream_filters= NULL;
3616 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3618 if(subtitle_codec_tag)
3619 subtitle_enc->codec_tag= subtitle_codec_tag;
3621 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3622 subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3623 avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3625 if (subtitle_stream_copy) {
3626 st->stream_copy = 1;
3628 subtitle_enc->codec_id = codec_id;
3629 set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3632 if (subtitle_language) {
3633 av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3634 av_freep(&subtitle_language);
3637 subtitle_disable = 0;
3638 av_freep(&subtitle_codec_name);
3639 subtitle_stream_copy = 0;
3642 static int opt_new_stream(const char *opt, const char *arg)
3644 AVFormatContext *oc;
3645 int file_idx = nb_output_files - 1;
3646 if (nb_output_files <= 0) {
3647 fprintf(stderr, "At least one output file must be specified\n");
3650 oc = output_files[file_idx];
3652 if (!strcmp(opt, "newvideo" )) new_video_stream (oc, file_idx);
3653 else if (!strcmp(opt, "newaudio" )) new_audio_stream (oc, file_idx);
3654 else if (!strcmp(opt, "newsubtitle")) new_subtitle_stream(oc, file_idx);
3659 /* arg format is "output-stream-index:streamid-value". */
3660 static int opt_streamid(const char *opt, const char *arg)
3666 strncpy(idx_str, arg, sizeof(idx_str));
3667 idx_str[sizeof(idx_str)-1] = '\0';
3668 p = strchr(idx_str, ':');
3671 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",