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
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
49 #include "libavformat/ffm.h" // not public API
52 # include "libavfilter/avcodec.h"
53 # include "libavfilter/avfilter.h"
54 # include "libavfilter/avfiltergraph.h"
55 # include "libavfilter/vsink_buffer.h"
56 # include "libavfilter/vsrc_buffer.h"
59 #if HAVE_SYS_RESOURCE_H
60 #include <sys/types.h>
62 #include <sys/resource.h>
63 #elif HAVE_GETPROCESSTIMES
66 #if HAVE_GETPROCESSMEMORYINFO
72 #include <sys/select.h>
77 #include <sys/ioctl.h>
87 #include "libavutil/avassert.h"
89 const char program_name[] = "avconv";
90 const int program_birth_year = 2000;
92 /* select an input stream for an output stream */
93 typedef struct StreamMap {
94 int disabled; /** 1 is this mapping is disabled by a negative map */
98 int sync_stream_index;
102 * select an input file for an output file
104 typedef struct MetadataMap {
105 int file; ///< file index
106 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
107 int index; ///< stream/chapter/program number
110 static const OptionDef options[];
112 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
113 static const char *last_asked_format = NULL;
114 static AVDictionary *ts_scale;
116 static StreamMap *stream_maps = NULL;
117 static int nb_stream_maps;
119 static AVDictionary *codec_names;
121 /* first item specifies output metadata, second is input */
122 static MetadataMap (*meta_data_maps)[2] = NULL;
123 static int nb_meta_data_maps;
124 static int metadata_global_autocopy = 1;
125 static int metadata_streams_autocopy = 1;
126 static int metadata_chapters_autocopy = 1;
128 static int chapters_input_file = INT_MAX;
130 /* indexed by output file stream index */
131 static int *streamid_map = NULL;
132 static int nb_streamid_map = 0;
134 static int frame_width = 0;
135 static int frame_height = 0;
136 static float frame_aspect_ratio = 0;
137 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
138 static int frame_bits_per_raw_sample = 0;
139 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
140 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
141 static AVRational frame_rate;
142 static float video_qscale = 0;
143 static uint16_t *intra_matrix = NULL;
144 static uint16_t *inter_matrix = NULL;
145 static const char *video_rc_override_string=NULL;
146 static int video_disable = 0;
147 static int video_discard = 0;
148 static unsigned int video_codec_tag = 0;
149 static char *video_language = NULL;
150 static int same_quant = 0;
151 static int do_deinterlace = 0;
152 static int top_field_first = -1;
153 static int me_threshold = 0;
154 static int intra_dc_precision = 8;
155 static int qp_hist = 0;
157 static char *vfilters = NULL;
160 static int audio_sample_rate = 0;
161 #define QSCALE_NONE -99999
162 static float audio_qscale = QSCALE_NONE;
163 static int audio_disable = 0;
164 static int audio_channels = 0;
165 static unsigned int audio_codec_tag = 0;
166 static char *audio_language = NULL;
168 static int subtitle_disable = 0;
169 static char *subtitle_language = NULL;
170 static unsigned int subtitle_codec_tag = 0;
172 static int data_disable = 0;
173 static unsigned int data_codec_tag = 0;
175 static float mux_preload= 0.5;
176 static float mux_max_delay= 0.7;
178 static int64_t recording_time = INT64_MAX;
179 static int64_t start_time = 0;
180 static int64_t input_ts_offset = 0;
181 static int file_overwrite = 0;
182 static AVDictionary *metadata;
183 static int do_benchmark = 0;
184 static int do_hex_dump = 0;
185 static int do_pkt_dump = 0;
186 static int do_psnr = 0;
187 static int do_pass = 0;
188 static const char *pass_logfilename_prefix;
189 static int video_sync_method= -1;
190 static int audio_sync_method= 0;
191 static float audio_drift_threshold= 0.1;
192 static int copy_ts= 0;
193 static int copy_tb= 0;
194 static int opt_shortest = 0;
195 static char *vstats_filename;
196 static FILE *vstats_file;
197 static int opt_programid = 0;
198 static int copy_initial_nonkeyframes = 0;
200 static int rate_emu = 0;
202 static int audio_volume = 256;
204 static int exit_on_error = 0;
205 static int using_stdin = 0;
206 static int verbose = 1;
207 static int run_as_daemon = 0;
208 static int q_pressed = 0;
209 static int64_t video_size = 0;
210 static int64_t audio_size = 0;
211 static int64_t extra_size = 0;
212 static int nb_frames_dup = 0;
213 static int nb_frames_drop = 0;
214 static int input_sync;
215 static uint64_t limit_filesize = UINT64_MAX;
216 static int force_fps = 0;
217 static char *forced_key_frames = NULL;
219 static float dts_delta_threshold = 10;
221 static uint8_t *audio_buf;
222 static uint8_t *audio_out;
223 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
225 static short *samples;
227 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
228 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
229 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
231 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
233 typedef struct InputStream {
236 int discard; /* true if stream data should be discarded */
237 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
240 int64_t start; /* time when read started */
241 int64_t next_pts; /* synthetic pts for cases where pkt.pts
243 int64_t pts; /* current pts */
245 int is_start; /* is 1 at the start and after a discontinuity */
246 int showed_multi_packet_warning;
250 typedef struct InputFile {
251 AVFormatContext *ctx;
252 int eof_reached; /* true if eof reached */
253 int ist_index; /* index of first stream in ist_table */
254 int buffer_size; /* current total buffer size */
256 int nb_streams; /* number of stream that avconv is aware of; may be different
257 from ctx.nb_streams if new streams appear during av_read_frame() */
260 typedef struct OutputStream {
261 int file_index; /* file index */
262 int index; /* stream index in the output file */
263 int source_index; /* InputStream index */
264 AVStream *st; /* stream in the output file */
265 int encoding_needed; /* true if encoding needed for this stream */
267 /* input pts and corresponding output pts
269 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
270 struct InputStream *sync_ist; /* input stream to sync against */
271 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
272 AVBitStreamFilterContext *bitstream_filters;
277 AVFrame resample_frame; /* temporary frame for image resampling */
278 struct SwsContext *img_resample_ctx; /* for image resampling */
281 int resample_pix_fmt;
282 AVRational frame_rate;
284 float frame_aspect_ratio;
286 /* forced key frames */
287 int64_t *forced_kf_pts;
293 ReSampleContext *resample; /* for audio resampling */
294 int resample_sample_fmt;
295 int resample_channels;
296 int resample_sample_rate;
298 AVAudioConvert *reformat_ctx;
299 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
303 AVFilterContext *output_video_filter;
304 AVFilterContext *input_video_filter;
305 AVFilterBufferRef *picref;
307 AVFilterGraph *graph;
312 int is_past_recording_time;
317 /* init terminal so that we can grab keys */
318 static struct termios oldtty;
321 typedef struct OutputFile {
322 AVFormatContext *ctx;
324 int ost_index; /* index of the first stream in output_streams */
325 int64_t recording_time; /* desired length of the resulting file in microseconds */
326 int64_t start_time; /* start time in microseconds */
327 uint64_t limit_filesize;
330 static InputStream *input_streams = NULL;
331 static int nb_input_streams = 0;
332 static InputFile *input_files = NULL;
333 static int nb_input_files = 0;
335 static OutputStream *output_streams = NULL;
336 static int nb_output_streams = 0;
337 static OutputFile *output_files = NULL;
338 static int nb_output_files = 0;
342 static int configure_video_filters(InputStream *ist, OutputStream *ost)
344 AVFilterContext *last_filter, *filter;
345 /** filter graph containing all filters including input & output */
346 AVCodecContext *codec = ost->st->codec;
347 AVCodecContext *icodec = ist->st->codec;
348 enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE };
349 AVRational sample_aspect_ratio;
353 ost->graph = avfilter_graph_alloc();
355 if (ist->st->sample_aspect_ratio.num){
356 sample_aspect_ratio = ist->st->sample_aspect_ratio;
358 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
360 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
361 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
362 sample_aspect_ratio.num, sample_aspect_ratio.den);
364 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
365 "src", args, NULL, ost->graph);
368 ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
369 "out", NULL, pix_fmts, ost->graph);
372 last_filter = ost->input_video_filter;
374 if (codec->width != icodec->width || codec->height != icodec->height) {
375 snprintf(args, 255, "%d:%d:flags=0x%X",
379 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
380 NULL, args, NULL, ost->graph)) < 0)
382 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
384 last_filter = filter;
387 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
388 ost->graph->scale_sws_opts = av_strdup(args);
391 AVFilterInOut *outputs = avfilter_inout_alloc();
392 AVFilterInOut *inputs = avfilter_inout_alloc();
394 outputs->name = av_strdup("in");
395 outputs->filter_ctx = last_filter;
396 outputs->pad_idx = 0;
397 outputs->next = NULL;
399 inputs->name = av_strdup("out");
400 inputs->filter_ctx = ost->output_video_filter;
404 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0)
406 av_freep(&ost->avfilter);
408 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
412 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
415 codec->width = ost->output_video_filter->inputs[0]->w;
416 codec->height = ost->output_video_filter->inputs[0]->h;
417 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
418 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
419 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
420 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
424 #endif /* CONFIG_AVFILTER */
426 static void term_exit(void)
428 av_log(NULL, AV_LOG_QUIET, "%s", "");
431 tcsetattr (0, TCSANOW, &oldtty);
435 static volatile int received_sigterm = 0;
438 sigterm_handler(int sig)
440 received_sigterm = sig;
445 static void term_init(void)
455 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
456 |INLCR|IGNCR|ICRNL|IXON);
457 tty.c_oflag |= OPOST;
458 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
459 tty.c_cflag &= ~(CSIZE|PARENB);
464 tcsetattr (0, TCSANOW, &tty);
465 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
469 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
470 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
472 signal(SIGXCPU, sigterm_handler);
476 /* read a key without blocking */
477 static int read_key(void)
492 n = select(1, &rfds, NULL, NULL, &tv);
507 static int decode_interrupt_cb(void)
509 q_pressed += read_key() == 'q';
510 return q_pressed > 1;
513 static int exit_program(int ret)
518 for(i=0;i<nb_output_files;i++) {
519 AVFormatContext *s = output_files[i].ctx;
520 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
522 avformat_free_context(s);
523 av_dict_free(&output_files[i].opts);
525 for(i=0;i<nb_input_files;i++) {
526 av_close_input_file(input_files[i].ctx);
528 for (i = 0; i < nb_input_streams; i++)
529 av_dict_free(&input_streams[i].opts);
531 av_free(intra_matrix);
532 av_free(inter_matrix);
536 av_free(vstats_filename);
538 av_free(meta_data_maps);
540 av_freep(&input_streams);
541 av_freep(&input_files);
542 av_freep(&output_streams);
543 av_freep(&output_files);
548 allocated_audio_buf_size= allocated_audio_out_size= 0;
555 if (received_sigterm) {
557 "Received signal %d: terminating.\n",
558 (int) received_sigterm);
562 exit(ret); /* not all OS-es handle main() return value */
566 static void assert_avoptions(AVDictionary *m)
568 AVDictionaryEntry *t;
569 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
570 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
575 static void assert_codec_experimental(AVCodecContext *c, int encoder)
577 const char *codec_string = encoder ? "encoder" : "decoder";
579 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
580 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
581 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
582 "results.\nAdd '-strict experimental' if you want to use it.\n",
583 codec_string, c->codec->name);
584 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
585 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
586 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
587 codec_string, codec->name);
592 /* similar to ff_dynarray_add() and av_fast_realloc() */
593 static void *grow_array(void *array, int elem_size, int *size, int new_size)
595 if (new_size >= INT_MAX / elem_size) {
596 fprintf(stderr, "Array too big.\n");
599 if (*size < new_size) {
600 uint8_t *tmp = av_realloc(array, new_size*elem_size);
602 fprintf(stderr, "Could not alloc buffer.\n");
605 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
612 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
614 if(codec && codec->sample_fmts){
615 const enum AVSampleFormat *p= codec->sample_fmts;
617 if(*p == st->codec->sample_fmt)
621 if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
622 av_log(NULL, AV_LOG_ERROR, "Convertion will not be lossless'\n");
623 if(av_get_sample_fmt_name(st->codec->sample_fmt))
624 av_log(NULL, AV_LOG_WARNING,
625 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
626 av_get_sample_fmt_name(st->codec->sample_fmt),
628 av_get_sample_fmt_name(codec->sample_fmts[0]));
629 st->codec->sample_fmt = codec->sample_fmts[0];
634 static void choose_sample_rate(AVStream *st, AVCodec *codec)
636 if(codec && codec->supported_samplerates){
637 const int *p= codec->supported_samplerates;
639 int best_dist=INT_MAX;
641 int dist= abs(st->codec->sample_rate - *p);
642 if(dist < best_dist){
648 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
650 st->codec->sample_rate= best;
654 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
656 if(codec && codec->pix_fmts){
657 const enum PixelFormat *p= codec->pix_fmts;
658 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
659 if(st->codec->codec_id==CODEC_ID_MJPEG){
660 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
661 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
662 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};
666 if(*p == st->codec->pix_fmt)
670 if(st->codec->pix_fmt != PIX_FMT_NONE)
671 av_log(NULL, AV_LOG_WARNING,
672 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
673 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
675 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
676 st->codec->pix_fmt = codec->pix_fmts[0];
682 get_sync_ipts(const OutputStream *ost)
684 const InputStream *ist = ost->sync_ist;
685 OutputFile *of = &output_files[ost->file_index];
686 return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
689 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
693 AVPacket new_pkt= *pkt;
694 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
695 &new_pkt.data, &new_pkt.size,
696 pkt->data, pkt->size,
697 pkt->flags & AV_PKT_FLAG_KEY);
700 new_pkt.destruct= av_destruct_packet;
702 fprintf(stderr, "%s failed for stream %d, codec %s",
703 bsfc->filter->name, pkt->stream_index,
704 avctx->codec ? avctx->codec->name : "copy");
714 ret= av_interleaved_write_frame(s, pkt);
716 print_error("av_interleaved_write_frame()", ret);
721 static void do_audio_out(AVFormatContext *s,
724 unsigned char *buf, int size)
727 int64_t audio_out_size, audio_buf_size;
728 int64_t allocated_for_size= size;
730 int size_out, frame_bytes, ret, resample_changed;
731 AVCodecContext *enc= ost->st->codec;
732 AVCodecContext *dec= ist->st->codec;
733 int osize = av_get_bytes_per_sample(enc->sample_fmt);
734 int isize = av_get_bytes_per_sample(dec->sample_fmt);
735 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
738 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
739 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
740 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
741 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
742 audio_buf_size*= osize*enc->channels;
744 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
745 if(coded_bps > 8*osize)
746 audio_out_size= audio_out_size * coded_bps / (8*osize);
747 audio_out_size += FF_MIN_BUFFER_SIZE;
749 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
750 fprintf(stderr, "Buffer sizes too large\n");
754 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
755 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
756 if (!audio_buf || !audio_out){
757 fprintf(stderr, "Out of memory in do_audio_out\n");
761 if (enc->channels != dec->channels)
762 ost->audio_resample = 1;
764 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
765 ost->resample_channels != dec->channels ||
766 ost->resample_sample_rate != dec->sample_rate;
768 if ((ost->audio_resample && !ost->resample) || resample_changed) {
769 if (resample_changed) {
770 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",
771 ist->file_index, ist->st->index,
772 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
773 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
774 ost->resample_sample_fmt = dec->sample_fmt;
775 ost->resample_channels = dec->channels;
776 ost->resample_sample_rate = dec->sample_rate;
778 audio_resample_close(ost->resample);
780 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
781 if (audio_sync_method <= 1 &&
782 ost->resample_sample_fmt == enc->sample_fmt &&
783 ost->resample_channels == enc->channels &&
784 ost->resample_sample_rate == enc->sample_rate) {
785 ost->resample = NULL;
786 ost->audio_resample = 0;
788 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
789 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
790 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
791 enc->sample_rate, dec->sample_rate,
792 enc->sample_fmt, dec->sample_fmt,
794 if (!ost->resample) {
795 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
796 dec->channels, dec->sample_rate,
797 enc->channels, enc->sample_rate);
803 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
804 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
805 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
806 if (ost->reformat_ctx)
807 av_audio_convert_free(ost->reformat_ctx);
808 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
809 dec->sample_fmt, 1, NULL, 0);
810 if (!ost->reformat_ctx) {
811 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
812 av_get_sample_fmt_name(dec->sample_fmt),
813 av_get_sample_fmt_name(enc->sample_fmt));
816 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
819 if(audio_sync_method){
820 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
821 - av_fifo_size(ost->fifo)/(enc->channels * 2);
822 double idelta= delta*dec->sample_rate / enc->sample_rate;
823 int byte_delta= ((int)idelta)*2*dec->channels;
825 //FIXME resample delay
826 if(fabs(delta) > 50){
827 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
829 byte_delta= FFMAX(byte_delta, -size);
833 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
838 static uint8_t *input_tmp= NULL;
839 input_tmp= av_realloc(input_tmp, byte_delta + size);
841 if(byte_delta > allocated_for_size - size){
842 allocated_for_size= byte_delta + (int64_t)size;
847 memset(input_tmp, 0, byte_delta);
848 memcpy(input_tmp + byte_delta, buf, size);
852 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
854 }else if(audio_sync_method>1){
855 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
856 av_assert0(ost->audio_resample);
858 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
859 // 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));
860 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
864 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
865 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
867 if (ost->audio_resample) {
869 size_out = audio_resample(ost->resample,
870 (short *)buftmp, (short *)buf,
871 size / (dec->channels * isize));
872 size_out = size_out * enc->channels * osize;
878 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
879 const void *ibuf[6]= {buftmp};
880 void *obuf[6]= {audio_buf};
881 int istride[6]= {isize};
882 int ostride[6]= {osize};
883 int len= size_out/istride[0];
884 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
885 printf("av_audio_convert() failed\n");
891 size_out = len*osize;
894 /* now encode as many frames as possible */
895 if (enc->frame_size > 1) {
896 /* output resampled raw samples */
897 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
898 fprintf(stderr, "av_fifo_realloc2() failed\n");
901 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
903 frame_bytes = enc->frame_size * osize * enc->channels;
905 while (av_fifo_size(ost->fifo) >= frame_bytes) {
907 av_init_packet(&pkt);
909 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
911 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
913 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
916 fprintf(stderr, "Audio encoding failed\n");
920 pkt.stream_index= ost->index;
923 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
924 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
925 pkt.flags |= AV_PKT_FLAG_KEY;
926 write_frame(s, &pkt, enc, ost->bitstream_filters);
928 ost->sync_opts += enc->frame_size;
932 av_init_packet(&pkt);
934 ost->sync_opts += size_out / (osize * enc->channels);
936 /* output a pcm frame */
937 /* determine the size of the coded buffer */
940 size_out = size_out*coded_bps/8;
942 if(size_out > audio_out_size){
943 fprintf(stderr, "Internal error, buffer size too small\n");
947 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
948 ret = avcodec_encode_audio(enc, audio_out, size_out,
951 fprintf(stderr, "Audio encoding failed\n");
955 pkt.stream_index= ost->index;
958 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
959 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
960 pkt.flags |= AV_PKT_FLAG_KEY;
961 write_frame(s, &pkt, enc, ost->bitstream_filters);
965 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
969 AVPicture picture_tmp;
972 dec = ist->st->codec;
974 /* deinterlace : must be done before any resize */
975 if (do_deinterlace) {
978 /* create temporary picture */
979 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
980 buf = av_malloc(size);
984 picture2 = &picture_tmp;
985 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
987 if(avpicture_deinterlace(picture2, picture,
988 dec->pix_fmt, dec->width, dec->height) < 0) {
989 /* if error, do not deinterlace */
990 fprintf(stderr, "Deinterlacing failed\n");
999 if (picture != picture2)
1000 *picture = *picture2;
1004 static void do_subtitle_out(AVFormatContext *s,
1010 static uint8_t *subtitle_out = NULL;
1011 int subtitle_out_max_size = 1024 * 1024;
1012 int subtitle_out_size, nb, i;
1013 AVCodecContext *enc;
1016 if (pts == AV_NOPTS_VALUE) {
1017 fprintf(stderr, "Subtitle packets must have a pts\n");
1023 enc = ost->st->codec;
1025 if (!subtitle_out) {
1026 subtitle_out = av_malloc(subtitle_out_max_size);
1029 /* Note: DVB subtitle need one packet to draw them and one other
1030 packet to clear them */
1031 /* XXX: signal it in the codec context ? */
1032 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1037 for(i = 0; i < nb; i++) {
1038 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1039 // start_display_time is required to be 0
1040 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1041 sub->end_display_time -= sub->start_display_time;
1042 sub->start_display_time = 0;
1043 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1044 subtitle_out_max_size, sub);
1045 if (subtitle_out_size < 0) {
1046 fprintf(stderr, "Subtitle encoding failed\n");
1050 av_init_packet(&pkt);
1051 pkt.stream_index = ost->index;
1052 pkt.data = subtitle_out;
1053 pkt.size = subtitle_out_size;
1054 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1055 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1056 /* XXX: the pts correction is handled here. Maybe handling
1057 it in the codec would be better */
1059 pkt.pts += 90 * sub->start_display_time;
1061 pkt.pts += 90 * sub->end_display_time;
1063 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1067 static int bit_buffer_size= 1024*256;
1068 static uint8_t *bit_buffer= NULL;
1070 static void do_video_resample(OutputStream *ost,
1072 AVFrame *in_picture,
1073 AVFrame **out_picture)
1075 int resample_changed = 0;
1076 AVCodecContext *dec = ist->st->codec;
1077 AVCodecContext *enc = ost->st->codec;
1078 *out_picture = in_picture;
1080 resample_changed = ost->resample_width != dec->width ||
1081 ost->resample_height != dec->height ||
1082 ost->resample_pix_fmt != dec->pix_fmt;
1084 #if !CONFIG_AVFILTER
1085 if (resample_changed) {
1086 av_log(NULL, AV_LOG_INFO,
1087 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1088 ist->file_index, ist->st->index,
1089 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1090 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1091 ost->resample_width = dec->width;
1092 ost->resample_height = dec->height;
1093 ost->resample_pix_fmt = dec->pix_fmt;
1096 ost->video_resample = dec->width != enc->width ||
1097 dec->height != enc->height ||
1098 dec->pix_fmt != enc->pix_fmt;
1100 if (ost->video_resample) {
1101 *out_picture = &ost->resample_frame;
1102 if (!ost->img_resample_ctx || resample_changed) {
1103 /* initialize the destination picture */
1104 if (!ost->resample_frame.data[0]) {
1105 avcodec_get_frame_defaults(&ost->resample_frame);
1106 if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
1107 enc->width, enc->height)) {
1108 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1112 /* initialize a new scaler context */
1113 sws_freeContext(ost->img_resample_ctx);
1114 ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt,
1115 enc->width, enc->height, enc->pix_fmt,
1116 ost->sws_flags, NULL, NULL, NULL);
1117 if (ost->img_resample_ctx == NULL) {
1118 fprintf(stderr, "Cannot get resampling context\n");
1122 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1123 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1126 if (resample_changed) {
1127 avfilter_graph_free(&ost->graph);
1128 if (configure_video_filters(ist, ost)) {
1129 fprintf(stderr, "Error reinitializing filters!\n");
1134 if (resample_changed) {
1135 ost->resample_width = dec->width;
1136 ost->resample_height = dec->height;
1137 ost->resample_pix_fmt = dec->pix_fmt;
1142 static void do_video_out(AVFormatContext *s,
1145 AVFrame *in_picture,
1146 int *frame_size, float quality)
1148 int nb_frames, i, ret, format_video_sync;
1149 AVFrame *final_picture;
1150 AVCodecContext *enc;
1153 enc = ost->st->codec;
1155 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1157 /* by default, we output a single frame */
1162 format_video_sync = video_sync_method;
1163 if (format_video_sync < 0)
1164 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1166 if (format_video_sync) {
1167 double vdelta = sync_ipts - ost->sync_opts;
1168 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1171 else if (format_video_sync == 2) {
1174 }else if(vdelta>0.6)
1175 ost->sync_opts= lrintf(sync_ipts);
1176 }else if (vdelta > 1.1)
1177 nb_frames = lrintf(vdelta);
1178 //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);
1179 if (nb_frames == 0){
1182 fprintf(stderr, "*** drop!\n");
1183 }else if (nb_frames > 1) {
1184 nb_frames_dup += nb_frames - 1;
1186 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1189 ost->sync_opts= lrintf(sync_ipts);
1191 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1195 do_video_resample(ost, ist, in_picture, &final_picture);
1197 /* duplicates frame if needed */
1198 for(i=0;i<nb_frames;i++) {
1200 av_init_packet(&pkt);
1201 pkt.stream_index= ost->index;
1203 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1204 /* raw pictures are written as AVPicture structure to
1205 avoid any copies. We support temporarily the older
1207 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1208 enc->coded_frame->top_field_first = in_picture->top_field_first;
1209 pkt.data= (uint8_t *)final_picture;
1210 pkt.size= sizeof(AVPicture);
1211 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1212 pkt.flags |= AV_PKT_FLAG_KEY;
1214 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1216 AVFrame big_picture;
1218 big_picture= *final_picture;
1219 /* better than nothing: use input picture interlaced
1221 big_picture.interlaced_frame = in_picture->interlaced_frame;
1222 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1223 if(top_field_first == -1)
1224 big_picture.top_field_first = in_picture->top_field_first;
1226 big_picture.top_field_first = top_field_first;
1229 /* handles same_quant here. This is not correct because it may
1230 not be a global option */
1231 big_picture.quality = quality;
1233 big_picture.pict_type = 0;
1234 // big_picture.pts = AV_NOPTS_VALUE;
1235 big_picture.pts= ost->sync_opts;
1236 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1237 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1238 if (ost->forced_kf_index < ost->forced_kf_count &&
1239 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1240 big_picture.pict_type = AV_PICTURE_TYPE_I;
1241 ost->forced_kf_index++;
1243 ret = avcodec_encode_video(enc,
1244 bit_buffer, bit_buffer_size,
1247 fprintf(stderr, "Video encoding failed\n");
1252 pkt.data= bit_buffer;
1254 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1255 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1256 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1257 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1258 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1260 if(enc->coded_frame->key_frame)
1261 pkt.flags |= AV_PKT_FLAG_KEY;
1262 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1265 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1266 // enc->frame_number-1, ret, enc->pict_type);
1267 /* if two pass, output log */
1268 if (ost->logfile && enc->stats_out) {
1269 fprintf(ost->logfile, "%s", enc->stats_out);
1274 ost->frame_number++;
1278 static double psnr(double d){
1279 return -10.0*log(d)/log(10.0);
1282 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1285 AVCodecContext *enc;
1287 double ti1, bitrate, avg_bitrate;
1289 /* this is executed just the first time do_video_stats is called */
1291 vstats_file = fopen(vstats_filename, "w");
1298 enc = ost->st->codec;
1299 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1300 frame_number = ost->frame_number;
1301 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1302 if (enc->flags&CODEC_FLAG_PSNR)
1303 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1305 fprintf(vstats_file,"f_size= %6d ", frame_size);
1306 /* compute pts value */
1307 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1311 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1312 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1313 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1314 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1315 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1319 static void print_report(OutputFile *output_files,
1320 OutputStream *ost_table, int nb_ostreams,
1321 int is_last_report, int64_t timer_start)
1325 AVFormatContext *oc;
1327 AVCodecContext *enc;
1328 int frame_number, vid, i;
1330 int64_t pts = INT64_MAX;
1331 static int64_t last_time = -1;
1332 static int qp_histogram[52];
1334 if (!is_last_report) {
1336 /* display the report every 0.5 seconds */
1337 cur_time = av_gettime();
1338 if (last_time == -1) {
1339 last_time = cur_time;
1342 if ((cur_time - last_time) < 500000)
1344 last_time = cur_time;
1348 oc = output_files[0].ctx;
1350 total_size = avio_size(oc->pb);
1351 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1352 total_size= avio_tell(oc->pb);
1356 for(i=0;i<nb_ostreams;i++) {
1358 ost = &ost_table[i];
1359 enc = ost->st->codec;
1360 if (!ost->st->stream_copy && enc->coded_frame)
1361 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1362 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1363 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1365 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1366 float t = (av_gettime()-timer_start) / 1000000.0;
1368 frame_number = ost->frame_number;
1369 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1370 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1372 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1376 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1379 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1381 if (enc->flags&CODEC_FLAG_PSNR){
1383 double error, error_sum=0;
1384 double scale, scale_sum=0;
1385 char type[3]= {'Y','U','V'};
1386 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1389 error= enc->error[j];
1390 scale= enc->width*enc->height*255.0*255.0*frame_number;
1392 error= enc->coded_frame->error[j];
1393 scale= enc->width*enc->height*255.0*255.0;
1398 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1400 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1404 /* compute min output value */
1405 pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
1406 ost->st->time_base, AV_TIME_BASE_Q));
1409 if (verbose > 0 || is_last_report) {
1410 int hours, mins, secs, us;
1411 secs = pts / AV_TIME_BASE;
1412 us = pts % AV_TIME_BASE;
1418 bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1420 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1421 "size=%8.0fkB time=", total_size / 1024.0);
1422 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1423 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1424 (100 * us) / AV_TIME_BASE);
1425 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1426 "bitrate=%6.1fkbits/s", bitrate);
1428 if (nb_frames_dup || nb_frames_drop)
1429 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1430 nb_frames_dup, nb_frames_drop);
1433 fprintf(stderr, "%s \r", buf);
1438 if (is_last_report && verbose >= 0){
1439 int64_t raw= audio_size + video_size + extra_size;
1440 fprintf(stderr, "\n");
1441 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1445 100.0*(total_size - raw)/raw
1450 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1452 int fill_char = 0x00;
1453 if (sample_fmt == AV_SAMPLE_FMT_U8)
1455 memset(buf, fill_char, size);
1458 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1462 for (i = 0; i < nb_ostreams; i++) {
1463 OutputStream *ost = &ost_table[i];
1464 AVCodecContext *enc = ost->st->codec;
1465 AVFormatContext *os = output_files[ost->file_index].ctx;
1467 if (!ost->encoding_needed)
1470 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1472 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1478 av_init_packet(&pkt);
1479 pkt.stream_index= ost->index;
1481 switch (ost->st->codec->codec_type) {
1482 case AVMEDIA_TYPE_AUDIO:
1483 fifo_bytes = av_fifo_size(ost->fifo);
1485 /* encode any samples remaining in fifo */
1486 if (fifo_bytes > 0) {
1487 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1488 int fs_tmp = enc->frame_size;
1490 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1491 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1492 enc->frame_size = fifo_bytes / (osize * enc->channels);
1494 int frame_bytes = enc->frame_size*osize*enc->channels;
1495 if (allocated_audio_buf_size < frame_bytes)
1497 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1500 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1501 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1502 ost->st->time_base.num, enc->sample_rate);
1503 enc->frame_size = fs_tmp;
1506 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1509 fprintf(stderr, "Audio encoding failed\n");
1513 pkt.flags |= AV_PKT_FLAG_KEY;
1515 case AVMEDIA_TYPE_VIDEO:
1516 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1518 fprintf(stderr, "Video encoding failed\n");
1522 if(enc->coded_frame && enc->coded_frame->key_frame)
1523 pkt.flags |= AV_PKT_FLAG_KEY;
1524 if (ost->logfile && enc->stats_out) {
1525 fprintf(ost->logfile, "%s", enc->stats_out);
1534 pkt.data = bit_buffer;
1536 if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1537 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1538 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1543 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1544 static int output_packet(InputStream *ist, int ist_index,
1545 OutputStream *ost_table, int nb_ostreams,
1546 const AVPacket *pkt)
1548 AVFormatContext *os;
1553 void *buffer_to_free = NULL;
1554 static unsigned int samples_size= 0;
1555 AVSubtitle subtitle, *subtitle_to_free;
1556 int64_t pkt_pts = AV_NOPTS_VALUE;
1558 int frame_available;
1563 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1565 if(ist->next_pts == AV_NOPTS_VALUE)
1566 ist->next_pts= ist->pts;
1570 av_init_packet(&avpkt);
1578 if(pkt->dts != AV_NOPTS_VALUE)
1579 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1580 if(pkt->pts != AV_NOPTS_VALUE)
1581 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1583 //while we have more to decode or while the decoder did output something on EOF
1584 while (avpkt.size > 0 || (!pkt && got_output)) {
1585 uint8_t *data_buf, *decoded_data_buf;
1586 int data_size, decoded_data_size;
1588 ist->pts= ist->next_pts;
1590 if(avpkt.size && avpkt.size != pkt->size &&
1591 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1592 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1593 ist->showed_multi_packet_warning=1;
1596 /* decode the packet if needed */
1597 decoded_data_buf = NULL; /* fail safe */
1598 decoded_data_size= 0;
1599 data_buf = avpkt.data;
1600 data_size = avpkt.size;
1601 subtitle_to_free = NULL;
1602 if (ist->decoding_needed) {
1603 switch(ist->st->codec->codec_type) {
1604 case AVMEDIA_TYPE_AUDIO:{
1605 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1606 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1608 samples= av_malloc(samples_size);
1610 decoded_data_size= samples_size;
1611 /* XXX: could avoid copy if PCM 16 bits with same
1612 endianness as CPU */
1613 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1620 got_output = decoded_data_size > 0;
1621 /* Some bug in mpeg audio decoder gives */
1622 /* decoded_data_size < 0, it seems they are overflows */
1624 /* no audio frame */
1627 decoded_data_buf = (uint8_t *)samples;
1628 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1629 (ist->st->codec->sample_rate * ist->st->codec->channels);
1631 case AVMEDIA_TYPE_VIDEO:
1632 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1633 /* XXX: allocate picture correctly */
1634 avcodec_get_frame_defaults(&picture);
1635 avpkt.pts = pkt_pts;
1636 avpkt.dts = ist->pts;
1637 pkt_pts = AV_NOPTS_VALUE;
1639 ret = avcodec_decode_video2(ist->st->codec,
1640 &picture, &got_output, &avpkt);
1641 quality = same_quant ? picture.quality : 0;
1645 /* no picture yet */
1646 goto discard_packet;
1648 ist->next_pts = ist->pts = picture.best_effort_timestamp;
1649 if (ist->st->codec->time_base.num != 0) {
1650 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1651 ist->next_pts += ((int64_t)AV_TIME_BASE *
1652 ist->st->codec->time_base.num * ticks) /
1653 ist->st->codec->time_base.den;
1656 buffer_to_free = NULL;
1657 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1659 case AVMEDIA_TYPE_SUBTITLE:
1660 ret = avcodec_decode_subtitle2(ist->st->codec,
1661 &subtitle, &got_output, &avpkt);
1665 goto discard_packet;
1667 subtitle_to_free = &subtitle;
1674 switch(ist->st->codec->codec_type) {
1675 case AVMEDIA_TYPE_AUDIO:
1676 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1677 ist->st->codec->sample_rate;
1679 case AVMEDIA_TYPE_VIDEO:
1680 if (ist->st->codec->time_base.num != 0) {
1681 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1682 ist->next_pts += ((int64_t)AV_TIME_BASE *
1683 ist->st->codec->time_base.num * ticks) /
1684 ist->st->codec->time_base.den;
1691 // preprocess audio (volume)
1692 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1693 if (audio_volume != 256) {
1696 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1697 int v = ((*volp) * audio_volume + 128) >> 8;
1698 *volp++ = av_clip_int16(v);
1703 /* frame rate emulation */
1705 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1706 int64_t now = av_gettime() - ist->start;
1710 /* if output time reached then transcode raw format,
1711 encode packets and output them */
1712 for (i = 0; i < nb_ostreams; i++) {
1713 OutputFile *of = &output_files[ost_table[i].file_index];
1716 ost = &ost_table[i];
1717 if (ost->source_index != ist_index)
1720 if (of->start_time && ist->pts < of->start_time)
1723 if (of->recording_time != INT64_MAX &&
1724 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1725 (AVRational){1, 1000000}) >= 0) {
1726 ost->is_past_recording_time = 1;
1731 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1732 ost->input_video_filter) {
1733 if (!picture.sample_aspect_ratio.num)
1734 picture.sample_aspect_ratio = ist->st->sample_aspect_ratio;
1735 picture.pts = ist->pts;
1737 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, AV_VSRC_BUF_FLAG_OVERWRITE);
1739 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1740 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1741 while (frame_available) {
1742 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter) {
1743 AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
1744 if (av_vsink_buffer_get_video_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
1747 avfilter_fill_frame_from_video_buffer_ref(&picture, ost->picref);
1748 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1752 os = output_files[ost->file_index].ctx;
1754 /* set the input output pts pairs */
1755 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1757 if (ost->encoding_needed) {
1758 av_assert0(ist->decoding_needed);
1759 switch(ost->st->codec->codec_type) {
1760 case AVMEDIA_TYPE_AUDIO:
1761 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1763 case AVMEDIA_TYPE_VIDEO:
1765 if (ost->picref->video && !ost->frame_aspect_ratio)
1766 ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
1768 do_video_out(os, ost, ist, &picture, &frame_size,
1769 same_quant ? quality : ost->st->codec->global_quality);
1770 if (vstats_filename && frame_size)
1771 do_video_stats(os, ost, frame_size);
1773 case AVMEDIA_TYPE_SUBTITLE:
1774 do_subtitle_out(os, ost, ist, &subtitle,
1781 AVFrame avframe; //FIXME/XXX remove this
1784 int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1785 av_init_packet(&opkt);
1787 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1788 #if !CONFIG_AVFILTER
1794 /* no reencoding needed : output the packet directly */
1795 /* force the input stream PTS */
1797 avcodec_get_frame_defaults(&avframe);
1798 ost->st->codec->coded_frame= &avframe;
1799 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1801 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1802 audio_size += data_size;
1803 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1804 video_size += data_size;
1808 opkt.stream_index= ost->index;
1809 if(pkt->pts != AV_NOPTS_VALUE)
1810 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1812 opkt.pts= AV_NOPTS_VALUE;
1814 if (pkt->dts == AV_NOPTS_VALUE)
1815 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1817 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1818 opkt.dts -= ost_tb_start_time;
1820 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1821 opkt.flags= pkt->flags;
1823 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1824 if( ost->st->codec->codec_id != CODEC_ID_H264
1825 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1826 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1828 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1829 opkt.destruct= av_destruct_packet;
1831 opkt.data = data_buf;
1832 opkt.size = data_size;
1835 if (os->oformat->flags & AVFMT_RAWPICTURE) {
1836 /* store AVPicture in AVPacket, as expected by the output format */
1837 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1838 opkt.data = (uint8_t *)&pict;
1839 opkt.size = sizeof(AVPicture);
1840 opkt.flags |= AV_PKT_FLAG_KEY;
1842 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1843 ost->st->codec->frame_number++;
1844 ost->frame_number++;
1845 av_free_packet(&opkt);
1849 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1850 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1852 avfilter_unref_buffer(ost->picref);
1857 av_free(buffer_to_free);
1858 /* XXX: allocate the subtitles in the codec ? */
1859 if (subtitle_to_free) {
1860 avsubtitle_free(subtitle_to_free);
1861 subtitle_to_free = NULL;
1869 static void print_sdp(OutputFile *output_files, int n)
1873 AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1877 for (i = 0; i < n; i++)
1878 avc[i] = output_files[i].ctx;
1880 av_sdp_create(avc, n, sdp, sizeof(sdp));
1881 printf("SDP:\n%s\n", sdp);
1886 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1887 char *error, int error_len)
1890 InputStream *ist = &input_streams[ist_index];
1891 if (ist->decoding_needed) {
1892 AVCodec *codec = ist->dec;
1894 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d.%d",
1895 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1896 return AVERROR(EINVAL);
1899 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1900 snprintf(error, error_len, "Error while opening decoder for input stream #%d.%d",
1901 ist->file_index, ist->st->index);
1902 return AVERROR(EINVAL);
1904 assert_codec_experimental(ist->st->codec, 0);
1905 assert_avoptions(ist->opts);
1908 ist->pts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames*AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1909 ist->next_pts = AV_NOPTS_VALUE;
1915 static int transcode_init(OutputFile *output_files,
1916 int nb_output_files,
1917 InputFile *input_files,
1921 AVFormatContext *os;
1922 AVCodecContext *codec, *icodec;
1929 for (i = 0; i < nb_input_streams; i++)
1930 input_streams[i].start = av_gettime();
1932 /* output stream init */
1933 for(i=0;i<nb_output_files;i++) {
1934 os = output_files[i].ctx;
1935 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1936 av_dump_format(os, i, os->filename, 1);
1937 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1938 return AVERROR(EINVAL);
1942 /* for each output stream, we compute the right encoding parameters */
1943 for (i = 0; i < nb_output_streams; i++) {
1944 ost = &output_streams[i];
1945 os = output_files[ost->file_index].ctx;
1946 ist = &input_streams[ost->source_index];
1948 codec = ost->st->codec;
1949 icodec = ist->st->codec;
1951 ost->st->disposition = ist->st->disposition;
1952 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1953 codec->chroma_sample_location = icodec->chroma_sample_location;
1955 if (ost->st->stream_copy) {
1956 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1958 if (extra_size > INT_MAX) {
1959 return AVERROR(EINVAL);
1962 /* if stream_copy is selected, no need to decode or encode */
1963 codec->codec_id = icodec->codec_id;
1964 codec->codec_type = icodec->codec_type;
1966 if(!codec->codec_tag){
1967 if( !os->oformat->codec_tag
1968 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1969 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1970 codec->codec_tag = icodec->codec_tag;
1973 codec->bit_rate = icodec->bit_rate;
1974 codec->rc_max_rate = icodec->rc_max_rate;
1975 codec->rc_buffer_size = icodec->rc_buffer_size;
1976 codec->extradata= av_mallocz(extra_size);
1977 if (!codec->extradata) {
1978 return AVERROR(ENOMEM);
1980 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1981 codec->extradata_size= icodec->extradata_size;
1983 codec->time_base = ist->st->time_base;
1984 if(!strcmp(os->oformat->name, "avi")) {
1985 if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
1986 codec->time_base = icodec->time_base;
1987 codec->time_base.num *= icodec->ticks_per_frame;
1988 codec->time_base.den *= 2;
1990 } else if(!(os->oformat->flags & AVFMT_VARIABLE_FPS)) {
1991 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){
1992 codec->time_base = icodec->time_base;
1993 codec->time_base.num *= icodec->ticks_per_frame;
1996 av_reduce(&codec->time_base.num, &codec->time_base.den,
1997 codec->time_base.num, codec->time_base.den, INT_MAX);
1999 switch(codec->codec_type) {
2000 case AVMEDIA_TYPE_AUDIO:
2001 if(audio_volume != 256) {
2002 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2005 codec->channel_layout = icodec->channel_layout;
2006 codec->sample_rate = icodec->sample_rate;
2007 codec->channels = icodec->channels;
2008 codec->frame_size = icodec->frame_size;
2009 codec->audio_service_type = icodec->audio_service_type;
2010 codec->block_align= icodec->block_align;
2011 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2012 codec->block_align= 0;
2013 if(codec->codec_id == CODEC_ID_AC3)
2014 codec->block_align= 0;
2016 case AVMEDIA_TYPE_VIDEO:
2017 codec->pix_fmt = icodec->pix_fmt;
2018 codec->width = icodec->width;
2019 codec->height = icodec->height;
2020 codec->has_b_frames = icodec->has_b_frames;
2021 if (!codec->sample_aspect_ratio.num) {
2022 codec->sample_aspect_ratio =
2023 ost->st->sample_aspect_ratio =
2024 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2025 ist->st->codec->sample_aspect_ratio.num ?
2026 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2029 case AVMEDIA_TYPE_SUBTITLE:
2030 codec->width = icodec->width;
2031 codec->height = icodec->height;
2033 case AVMEDIA_TYPE_DATA:
2040 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2041 switch(codec->codec_type) {
2042 case AVMEDIA_TYPE_AUDIO:
2043 ost->fifo= av_fifo_alloc(1024);
2045 return AVERROR(ENOMEM);
2047 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2048 if (!codec->sample_rate) {
2049 codec->sample_rate = icodec->sample_rate;
2051 choose_sample_rate(ost->st, ost->enc);
2052 codec->time_base = (AVRational){1, codec->sample_rate};
2053 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2054 codec->sample_fmt = icodec->sample_fmt;
2055 choose_sample_fmt(ost->st, ost->enc);
2056 if (!codec->channels) {
2057 codec->channels = icodec->channels;
2058 codec->channel_layout = icodec->channel_layout;
2060 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2061 codec->channel_layout = 0;
2062 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2063 icodec->request_channels = codec->channels;
2064 ist->decoding_needed = 1;
2065 ost->encoding_needed = 1;
2066 ost->resample_sample_fmt = icodec->sample_fmt;
2067 ost->resample_sample_rate = icodec->sample_rate;
2068 ost->resample_channels = icodec->channels;
2070 case AVMEDIA_TYPE_VIDEO:
2071 if (codec->pix_fmt == PIX_FMT_NONE)
2072 codec->pix_fmt = icodec->pix_fmt;
2073 choose_pixel_fmt(ost->st, ost->enc);
2075 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2076 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2080 if (!codec->width || !codec->height) {
2081 codec->width = icodec->width;
2082 codec->height = icodec->height;
2085 ost->video_resample = codec->width != icodec->width ||
2086 codec->height != icodec->height ||
2087 codec->pix_fmt != icodec->pix_fmt;
2088 if (ost->video_resample) {
2089 codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2092 ost->resample_height = icodec->height;
2093 ost->resample_width = icodec->width;
2094 ost->resample_pix_fmt= icodec->pix_fmt;
2095 ost->encoding_needed = 1;
2096 ist->decoding_needed = 1;
2098 if (!ost->frame_rate.num)
2099 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2100 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2101 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2102 ost->frame_rate = ost->enc->supported_framerates[idx];
2104 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2105 if( av_q2d(codec->time_base) < 0.001 && video_sync_method
2106 && (video_sync_method==1 || (video_sync_method<0 && !(os->oformat->flags & AVFMT_VARIABLE_FPS)))){
2107 av_log(os, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
2108 "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
2112 if (configure_video_filters(ist, ost)) {
2113 fprintf(stderr, "Error opening filters!\n");
2118 case AVMEDIA_TYPE_SUBTITLE:
2119 ost->encoding_needed = 1;
2120 ist->decoding_needed = 1;
2127 if (ost->encoding_needed && codec->codec_id != CODEC_ID_H264 &&
2128 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2129 char logfilename[1024];
2132 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2133 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2135 if (codec->flags & CODEC_FLAG_PASS1) {
2136 f = fopen(logfilename, "wb");
2138 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2144 size_t logbuffer_size;
2145 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2146 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2149 codec->stats_in = logbuffer;
2153 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2154 /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
2155 int size= codec->width * codec->height;
2156 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);
2161 bit_buffer = av_malloc(bit_buffer_size);
2163 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2165 return AVERROR(ENOMEM);
2168 /* open each encoder */
2169 for (i = 0; i < nb_output_streams; i++) {
2170 ost = &output_streams[i];
2171 if (ost->encoding_needed) {
2172 AVCodec *codec = ost->enc;
2173 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2175 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2176 ost->st->codec->codec_id, ost->file_index, ost->index);
2177 ret = AVERROR(EINVAL);
2180 if (dec->subtitle_header) {
2181 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2182 if (!ost->st->codec->subtitle_header) {
2183 ret = AVERROR(ENOMEM);
2186 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2187 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2189 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2190 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2191 ost->file_index, ost->index);
2192 ret = AVERROR(EINVAL);
2195 assert_codec_experimental(ost->st->codec, 1);
2196 assert_avoptions(ost->opts);
2197 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2198 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2199 "It takes bits/s as argument, not kbits/s\n");
2200 extra_size += ost->st->codec->extradata_size;
2204 /* init input streams */
2205 for (i = 0; i < nb_input_streams; i++)
2206 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2209 /* open files and write file headers */
2210 for (i = 0; i < nb_output_files; i++) {
2211 os = output_files[i].ctx;
2212 if (avformat_write_header(os, &output_files[i].opts) < 0) {
2213 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2214 ret = AVERROR(EINVAL);
2217 // assert_avoptions(output_files[i].opts);
2218 if (strcmp(os->oformat->name, "rtp")) {
2224 /* dump the file output parameters - cannot be done before in case
2226 for(i=0;i<nb_output_files;i++) {
2227 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2230 /* dump the stream mapping */
2232 fprintf(stderr, "Stream mapping:\n");
2233 for (i = 0; i < nb_output_streams;i ++) {
2234 ost = &output_streams[i];
2235 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2236 input_streams[ost->source_index].file_index,
2237 input_streams[ost->source_index].st->index,
2240 if (ost->sync_ist != &input_streams[ost->source_index])
2241 fprintf(stderr, " [sync #%d.%d]",
2242 ost->sync_ist->file_index,
2243 ost->sync_ist->st->index);
2244 if (ost->st->stream_copy)
2245 fprintf(stderr, " (copy)");
2247 fprintf(stderr, " (%s -> %s)", input_streams[ost->source_index].dec ?
2248 input_streams[ost->source_index].dec->name : "?",
2249 ost->enc ? ost->enc->name : "?");
2250 fprintf(stderr, "\n");
2255 fprintf(stderr, "%s\n", error);
2260 print_sdp(output_files, nb_output_files);
2267 * The following code is the main loop of the file converter
2269 static int transcode(OutputFile *output_files,
2270 int nb_output_files,
2271 InputFile *input_files,
2275 AVFormatContext *is, *os;
2279 int no_packet_count=0;
2280 int64_t timer_start;
2283 if (!(no_packet = av_mallocz(nb_input_files)))
2286 ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2292 fprintf(stderr, "Press [q] to stop, [?] for help\n");
2293 avio_set_interrupt_cb(decode_interrupt_cb);
2297 timer_start = av_gettime();
2299 for(; received_sigterm == 0;) {
2300 int file_index, ist_index;
2305 ipts_min = INT64_MAX;
2307 /* if 'q' pressed, exits */
2311 /* read_key() returns 0 on EOF */
2315 if (key == '+') verbose++;
2316 if (key == '-') verbose--;
2317 if (key == 's') qp_hist ^= 1;
2320 do_hex_dump = do_pkt_dump = 0;
2321 } else if(do_pkt_dump){
2325 av_log_set_level(AV_LOG_DEBUG);
2327 if (key == 'd' || key == 'D'){
2330 debug = input_streams[0].st->codec->debug<<1;
2331 if(!debug) debug = 1;
2332 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2335 scanf("%d", &debug);
2336 for(i=0;i<nb_input_streams;i++) {
2337 input_streams[i].st->codec->debug = debug;
2339 for(i=0;i<nb_output_streams;i++) {
2340 ost = &output_streams[i];
2341 ost->st->codec->debug = debug;
2343 if(debug) av_log_set_level(AV_LOG_DEBUG);
2344 fprintf(stderr,"debug=%d\n", debug);
2347 fprintf(stderr, "key function\n"
2348 "? show this help\n"
2349 "+ increase verbosity\n"
2350 "- decrease verbosity\n"
2351 "D cycle through available debug modes\n"
2352 "h dump packets/hex press to cycle through the 3 states\n"
2354 "s Show QP histogram\n"
2359 /* select the stream that we must read now by looking at the
2360 smallest output pts */
2362 for (i = 0; i < nb_output_streams; i++) {
2366 ost = &output_streams[i];
2367 of = &output_files[ost->file_index];
2368 os = output_files[ost->file_index].ctx;
2369 ist = &input_streams[ost->source_index];
2370 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2371 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2373 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2375 if (!input_files[ist->file_index].eof_reached){
2376 if(ipts < ipts_min) {
2378 if(input_sync ) file_index = ist->file_index;
2380 if(opts < opts_min) {
2382 if(!input_sync) file_index = ist->file_index;
2385 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2390 /* if none, if is finished */
2391 if (file_index < 0) {
2392 if(no_packet_count){
2394 memset(no_packet, 0, nb_input_files);
2401 /* read a frame from it and output it in the fifo */
2402 is = input_files[file_index].ctx;
2403 ret= av_read_frame(is, &pkt);
2404 if(ret == AVERROR(EAGAIN)){
2405 no_packet[file_index]=1;
2410 input_files[file_index].eof_reached = 1;
2418 memset(no_packet, 0, nb_input_files);
2421 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2422 is->streams[pkt.stream_index]);
2424 /* the following test is needed in case new streams appear
2425 dynamically in stream : we ignore them */
2426 if (pkt.stream_index >= input_files[file_index].nb_streams)
2427 goto discard_packet;
2428 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2429 ist = &input_streams[ist_index];
2431 goto discard_packet;
2433 if (pkt.dts != AV_NOPTS_VALUE)
2434 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2435 if (pkt.pts != AV_NOPTS_VALUE)
2436 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2438 if (ist->ts_scale) {
2439 if(pkt.pts != AV_NOPTS_VALUE)
2440 pkt.pts *= ist->ts_scale;
2441 if(pkt.dts != AV_NOPTS_VALUE)
2442 pkt.dts *= ist->ts_scale;
2445 // fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
2446 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2447 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2448 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2449 int64_t delta= pkt_dts - ist->next_pts;
2450 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2451 input_files[ist->file_index].ts_offset -= delta;
2453 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2454 delta, input_files[ist->file_index].ts_offset);
2455 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2456 if(pkt.pts != AV_NOPTS_VALUE)
2457 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2461 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2462 if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2465 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2466 ist->file_index, ist->st->index);
2469 av_free_packet(&pkt);
2474 av_free_packet(&pkt);
2476 /* dump report by using the output first video and audio streams */
2477 print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2480 /* at the end of stream, we must flush the decoder buffers */
2481 for (i = 0; i < nb_input_streams; i++) {
2482 ist = &input_streams[i];
2483 if (ist->decoding_needed) {
2484 output_packet(ist, i, output_streams, nb_output_streams, NULL);
2487 flush_encoders(output_streams, nb_output_streams);
2491 /* write the trailer if needed and close file */
2492 for(i=0;i<nb_output_files;i++) {
2493 os = output_files[i].ctx;
2494 av_write_trailer(os);
2497 /* dump report by using the first video and audio streams */
2498 print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2500 /* close each encoder */
2501 for (i = 0; i < nb_output_streams; i++) {
2502 ost = &output_streams[i];
2503 if (ost->encoding_needed) {
2504 av_freep(&ost->st->codec->stats_in);
2505 avcodec_close(ost->st->codec);
2508 avfilter_graph_free(&ost->graph);
2512 /* close each decoder */
2513 for (i = 0; i < nb_input_streams; i++) {
2514 ist = &input_streams[i];
2515 if (ist->decoding_needed) {
2516 avcodec_close(ist->st->codec);
2524 av_freep(&bit_buffer);
2525 av_freep(&no_packet);
2527 if (output_streams) {
2528 for (i = 0; i < nb_output_streams; i++) {
2529 ost = &output_streams[i];
2531 if (ost->st->stream_copy)
2532 av_freep(&ost->st->codec->extradata);
2534 fclose(ost->logfile);
2535 ost->logfile = NULL;
2537 av_fifo_free(ost->fifo); /* works even if fifo is not
2538 initialized but set to zero */
2539 av_freep(&ost->st->codec->subtitle_header);
2540 av_free(ost->resample_frame.data[0]);
2541 av_free(ost->forced_kf_pts);
2542 if (ost->video_resample)
2543 sws_freeContext(ost->img_resample_ctx);
2545 audio_resample_close(ost->resample);
2546 if (ost->reformat_ctx)
2547 av_audio_convert_free(ost->reformat_ctx);
2548 av_dict_free(&ost->opts);
2555 static int opt_format(const char *opt, const char *arg)
2557 last_asked_format = arg;
2561 static int opt_video_rc_override_string(const char *opt, const char *arg)
2563 video_rc_override_string = arg;
2567 static int opt_me_threshold(const char *opt, const char *arg)
2569 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2573 static int opt_verbose(const char *opt, const char *arg)
2575 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2579 static int opt_frame_rate(const char *opt, const char *arg)
2581 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2582 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2588 static int opt_frame_size(const char *opt, const char *arg)
2590 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2591 fprintf(stderr, "Incorrect frame size\n");
2592 return AVERROR(EINVAL);
2597 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2599 if (strcmp(arg, "list")) {
2600 frame_pix_fmt = av_get_pix_fmt(arg);
2601 if (frame_pix_fmt == PIX_FMT_NONE) {
2602 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2603 return AVERROR(EINVAL);
2606 opt_pix_fmts(NULL, NULL);
2612 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2619 p = strchr(arg, ':');
2621 x = strtol(arg, &end, 10);
2623 y = strtol(end+1, &end, 10);
2625 ar = (double)x / (double)y;
2627 ar = strtod(arg, NULL);
2630 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2631 return AVERROR(EINVAL);
2633 frame_aspect_ratio = ar;
2637 static int opt_metadata(const char *opt, const char *arg)
2639 char *mid= strchr(arg, '=');
2642 fprintf(stderr, "Missing =\n");
2647 av_dict_set(&metadata, arg, mid, 0);
2652 static int opt_qscale(const char *opt, const char *arg)
2654 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2655 if (video_qscale <= 0 || video_qscale > 255) {
2656 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2657 return AVERROR(EINVAL);
2662 static int opt_top_field_first(const char *opt, const char *arg)
2664 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2665 return opt_default(opt, arg);
2668 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2670 if (strcmp(arg, "list")) {
2671 audio_sample_fmt = av_get_sample_fmt(arg);
2672 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2673 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2674 return AVERROR(EINVAL);
2679 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2680 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2686 static int opt_audio_rate(const char *opt, const char *arg)
2688 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2692 static int opt_audio_channels(const char *opt, const char *arg)
2694 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2698 static int opt_codec(const char *opt, const char *arg)
2700 return av_dict_set(&codec_names, opt, arg, 0);
2703 static int opt_audio_codec(const char *opt, const char *arg)
2705 return opt_codec("codec:a", arg);
2708 static int opt_video_codec(const char *opt, const char *arg)
2710 return opt_codec("codec:v", arg);
2713 static int opt_subtitle_codec(const char *opt, const char *arg)
2715 return opt_codec("codec:s", arg);
2718 static int opt_data_codec(const char *opt, const char *arg)
2720 return opt_codec("codec:d", arg);
2723 static int opt_codec_tag(const char *opt, const char *arg)
2726 uint32_t *codec_tag;
2728 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2729 !strcmp(opt, "vtag") ? &video_codec_tag :
2730 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2734 *codec_tag = strtol(arg, &tail, 0);
2736 *codec_tag = AV_RL32(arg);
2741 static int opt_map(const char *opt, const char *arg)
2743 StreamMap *m = NULL;
2744 int i, negative = 0, file_idx;
2745 int sync_file_idx = -1, sync_stream_idx;
2753 map = av_strdup(arg);
2755 /* parse sync stream first, just pick first matching stream */
2756 if (sync = strchr(map, ',')) {
2758 sync_file_idx = strtol(sync + 1, &sync, 0);
2759 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2760 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2765 for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2766 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2767 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2768 sync_stream_idx = i;
2771 if (i == input_files[sync_file_idx].nb_streams) {
2772 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2773 "match any streams.\n", arg);
2779 file_idx = strtol(map, &p, 0);
2780 if (file_idx >= nb_input_files || file_idx < 0) {
2781 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2785 /* disable some already defined maps */
2786 for (i = 0; i < nb_stream_maps; i++) {
2787 m = &stream_maps[i];
2788 if (check_stream_specifier(input_files[m->file_index].ctx,
2789 input_files[m->file_index].ctx->streams[m->stream_index],
2790 *p == ':' ? p + 1 : p) > 0)
2794 for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2795 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2796 *p == ':' ? p + 1 : p) <= 0)
2798 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2799 m = &stream_maps[nb_stream_maps - 1];
2801 m->file_index = file_idx;
2802 m->stream_index = i;
2804 if (sync_file_idx >= 0) {
2805 m->sync_file_index = sync_file_idx;
2806 m->sync_stream_index = sync_stream_idx;
2808 m->sync_file_index = file_idx;
2809 m->sync_stream_index = i;
2814 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2822 static void parse_meta_type(char *arg, char *type, int *index)
2832 if (*(++arg) == ':')
2833 *index = strtol(++arg, NULL, 0);
2836 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2843 static int opt_map_metadata(const char *opt, const char *arg)
2845 MetadataMap *m, *m1;
2848 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2849 &nb_meta_data_maps, nb_meta_data_maps + 1);
2851 m = &meta_data_maps[nb_meta_data_maps - 1][1];
2852 m->file = strtol(arg, &p, 0);
2853 parse_meta_type(p, &m->type, &m->index);
2855 m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2856 if (p = strchr(opt, ':'))
2857 parse_meta_type(p, &m1->type, &m1->index);
2861 if (m->type == 'g' || m1->type == 'g')
2862 metadata_global_autocopy = 0;
2863 if (m->type == 's' || m1->type == 's')
2864 metadata_streams_autocopy = 0;
2865 if (m->type == 'c' || m1->type == 'c')
2866 metadata_chapters_autocopy = 0;
2871 static int opt_input_ts_scale(const char *opt, const char *arg)
2873 return av_dict_set(&ts_scale, opt, arg, 0);
2876 static int opt_recording_time(const char *opt, const char *arg)
2878 recording_time = parse_time_or_die(opt, arg, 1);
2882 static int opt_start_time(const char *opt, const char *arg)
2884 start_time = parse_time_or_die(opt, arg, 1);
2888 static int opt_input_ts_offset(const char *opt, const char *arg)
2890 input_ts_offset = parse_time_or_die(opt, arg, 1);
2894 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2896 const char *codec_string = encoder ? "encoder" : "decoder";
2900 return CODEC_ID_NONE;
2902 avcodec_find_encoder_by_name(name) :
2903 avcodec_find_decoder_by_name(name);
2905 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2908 if(codec->type != type) {
2909 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2915 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2917 AVDictionaryEntry *e = NULL;
2918 char *codec_name = NULL;
2921 while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2922 char *p = strchr(e->key, ':');
2924 if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2925 codec_name = e->value;
2932 st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2933 return avcodec_find_encoder(st->codec->codec_id);
2935 } else if (!strcmp(codec_name, "copy"))
2936 st->stream_copy = 1;
2938 st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2939 return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2940 avcodec_find_decoder_by_name(codec_name);
2947 * Add all the streams from the given input file to the global
2948 * list of input streams.
2950 static void add_input_streams(AVFormatContext *ic)
2952 int i, rfps, rfps_base, ret;
2954 for (i = 0; i < ic->nb_streams; i++) {
2955 AVStream *st = ic->streams[i];
2956 AVCodecContext *dec = st->codec;
2957 AVDictionaryEntry *e = NULL;
2961 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2962 ist = &input_streams[nb_input_streams - 1];
2964 ist->file_index = nb_input_files;
2966 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2968 while (e = av_dict_get(ts_scale, "", e, AV_DICT_IGNORE_SUFFIX)) {
2969 char *p = strchr(e->key, ':');
2971 if ((ret = check_stream_specifier(ic, st, p ? p + 1 : "")) > 0)
2977 ist->ts_scale = strtod(scale, NULL);
2979 ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2981 ist->dec = avcodec_find_decoder(dec->codec_id);
2983 switch (dec->codec_type) {
2984 case AVMEDIA_TYPE_AUDIO:
2986 ist->dec = avcodec_find_decoder(dec->codec_id);
2988 st->discard= AVDISCARD_ALL;
2990 case AVMEDIA_TYPE_VIDEO:
2992 ist->dec = avcodec_find_decoder(dec->codec_id);
2993 rfps = ic->streams[i]->r_frame_rate.num;
2994 rfps_base = ic->streams[i]->r_frame_rate.den;
2996 dec->flags |= CODEC_FLAG_EMU_EDGE;
2999 dec->debug |= FF_DEBUG_MV;
3001 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3004 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3005 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3007 (float)rfps / rfps_base, rfps, rfps_base);
3011 st->discard= AVDISCARD_ALL;
3012 else if(video_discard)
3013 st->discard= video_discard;
3015 case AVMEDIA_TYPE_DATA:
3017 case AVMEDIA_TYPE_SUBTITLE:
3019 ist->dec = avcodec_find_decoder(dec->codec_id);
3020 if(subtitle_disable)
3021 st->discard = AVDISCARD_ALL;
3023 case AVMEDIA_TYPE_ATTACHMENT:
3024 case AVMEDIA_TYPE_UNKNOWN:
3032 static int opt_input_file(const char *opt, const char *filename)
3034 AVFormatContext *ic;
3035 AVInputFormat *file_iformat = NULL;
3039 AVDictionary **opts;
3040 int orig_nb_streams; // number of streams before avformat_find_stream_info
3042 if (last_asked_format) {
3043 if (!(file_iformat = av_find_input_format(last_asked_format))) {
3044 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3047 last_asked_format = NULL;
3050 if (!strcmp(filename, "-"))
3053 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3054 !strcmp(filename, "/dev/stdin");
3056 /* get default parameters from command line */
3057 ic = avformat_alloc_context();
3059 print_error(filename, AVERROR(ENOMEM));
3062 if (audio_sample_rate) {
3063 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3064 av_dict_set(&format_opts, "sample_rate", buf, 0);
3066 if (audio_channels) {
3067 snprintf(buf, sizeof(buf), "%d", audio_channels);
3068 av_dict_set(&format_opts, "channels", buf, 0);
3070 if (frame_rate.num) {
3071 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3072 av_dict_set(&format_opts, "framerate", buf, 0);
3074 if (frame_width && frame_height) {
3075 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3076 av_dict_set(&format_opts, "video_size", buf, 0);
3078 if (frame_pix_fmt != PIX_FMT_NONE)
3079 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3081 ic->flags |= AVFMT_FLAG_NONBLOCK;
3083 /* open the input file with generic libav function */
3084 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3086 print_error(filename, err);
3089 assert_avoptions(format_opts);
3094 for(i=0; i<ic->nb_streams; i++){
3095 ic->streams[i]->discard= AVDISCARD_ALL;
3097 for(i=0; i<ic->nb_programs; i++){
3098 AVProgram *p= ic->programs[i];
3099 if(p->id != opt_programid){
3100 p->discard = AVDISCARD_ALL;
3103 for(j=0; j<p->nb_stream_indexes; j++){
3104 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3109 fprintf(stderr, "Specified program id not found\n");
3115 /* apply forced codec ids */
3116 for (i = 0; i < ic->nb_streams; i++)
3117 choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3119 /* Set AVCodecContext options for avformat_find_stream_info */
3120 opts = setup_find_stream_info_opts(ic, codec_opts);
3121 orig_nb_streams = ic->nb_streams;
3123 /* If not enough info to get the stream parameters, we decode the
3124 first frames to get it. (used in mpeg case for example) */
3125 ret = avformat_find_stream_info(ic, opts);
3126 if (ret < 0 && verbose >= 0) {
3127 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3128 av_close_input_file(ic);
3132 timestamp = start_time;
3133 /* add the stream start time */
3134 if (ic->start_time != AV_NOPTS_VALUE)
3135 timestamp += ic->start_time;
3137 /* if seeking requested, we execute it */
3138 if (start_time != 0) {
3139 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3141 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3142 filename, (double)timestamp / AV_TIME_BASE);
3144 /* reset seek info */
3148 /* update the current parameters so that they match the one of the input stream */
3149 add_input_streams(ic);
3151 /* dump the file content */
3153 av_dump_format(ic, nb_input_files, filename, 0);
3155 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3156 input_files[nb_input_files - 1].ctx = ic;
3157 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3158 input_files[nb_input_files - 1].ts_offset = input_ts_offset - (copy_ts ? 0 : timestamp);
3159 input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3161 top_field_first = -1;
3162 frame_rate = (AVRational){0, 0};
3163 frame_pix_fmt = PIX_FMT_NONE;
3166 audio_sample_rate = 0;
3168 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3169 av_dict_free(&ts_scale);
3170 input_ts_offset = 0;
3172 for (i = 0; i < orig_nb_streams; i++)
3173 av_dict_free(&opts[i]);
3175 av_dict_free(&codec_names);
3181 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3182 AVCodecContext *avctx)
3188 for (p = kf; *p; p++)
3191 ost->forced_kf_count = n;
3192 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3193 if (!ost->forced_kf_pts) {
3194 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3197 for (i = 0; i < n; i++) {
3198 p = i ? strchr(p, ',') + 1 : kf;
3199 t = parse_time_or_die("force_key_frames", p, 1);
3200 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3204 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3207 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3208 int idx = oc->nb_streams - 1;
3211 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3215 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3216 nb_output_streams + 1);
3217 ost = &output_streams[nb_output_streams - 1];
3218 ost->file_index = nb_output_files;
3221 st->codec->codec_type = type;
3222 ost->enc = choose_codec(oc, st, type, codec_names);
3224 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3227 avcodec_get_context_defaults3(st->codec, ost->enc);
3228 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3230 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3234 static OutputStream *new_video_stream(AVFormatContext *oc)
3238 AVCodecContext *video_enc;
3240 ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3242 if (!st->stream_copy) {
3243 ost->frame_aspect_ratio = frame_aspect_ratio;
3244 frame_aspect_ratio = 0;
3246 ost->avfilter = vfilters;
3251 ost->bitstream_filters = video_bitstream_filters;
3252 video_bitstream_filters= NULL;
3254 video_enc = st->codec;
3257 video_enc->codec_tag= video_codec_tag;
3259 if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3260 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3263 if (st->stream_copy) {
3264 video_enc->sample_aspect_ratio =
3265 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3271 ost->frame_rate = frame_rate;
3273 video_enc->width = frame_width;
3274 video_enc->height = frame_height;
3275 video_enc->pix_fmt = frame_pix_fmt;
3276 video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3277 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3279 if (video_qscale || same_quant) {
3280 video_enc->flags |= CODEC_FLAG_QSCALE;
3281 video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3285 video_enc->intra_matrix = intra_matrix;
3287 video_enc->inter_matrix = inter_matrix;
3289 p= video_rc_override_string;
3292 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3294 fprintf(stderr, "error parsing rc_override\n");
3297 video_enc->rc_override=
3298 av_realloc(video_enc->rc_override,
3299 sizeof(RcOverride)*(i+1));
3300 video_enc->rc_override[i].start_frame= start;
3301 video_enc->rc_override[i].end_frame = end;
3303 video_enc->rc_override[i].qscale= q;
3304 video_enc->rc_override[i].quality_factor= 1.0;
3307 video_enc->rc_override[i].qscale= 0;
3308 video_enc->rc_override[i].quality_factor= -q/100.0;
3313 video_enc->rc_override_count=i;
3314 if (!video_enc->rc_initial_buffer_occupancy)
3315 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3316 video_enc->me_threshold= me_threshold;
3317 video_enc->intra_dc_precision= intra_dc_precision - 8;
3320 video_enc->flags|= CODEC_FLAG_PSNR;
3325 video_enc->flags |= CODEC_FLAG_PASS1;
3327 video_enc->flags |= CODEC_FLAG_PASS2;
3331 if (forced_key_frames)
3332 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3334 if (video_language) {
3335 av_dict_set(&st->metadata, "language", video_language, 0);
3336 av_freep(&video_language);
3339 /* reset some key parameters */
3341 av_freep(&forced_key_frames);
3342 frame_pix_fmt = PIX_FMT_NONE;
3346 static OutputStream *new_audio_stream(AVFormatContext *oc)
3350 AVCodecContext *audio_enc;
3352 ost = new_output_stream(oc, AVMEDIA_TYPE_AUDIO);
3355 ost->bitstream_filters = audio_bitstream_filters;
3356 audio_bitstream_filters= NULL;
3358 audio_enc = st->codec;
3359 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3362 audio_enc->codec_tag= audio_codec_tag;
3364 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3365 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3367 if (!st->stream_copy) {
3368 if (audio_qscale > QSCALE_NONE) {
3369 audio_enc->flags |= CODEC_FLAG_QSCALE;
3370 audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3373 audio_enc->channels = audio_channels;
3374 if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3375 audio_enc->sample_fmt = audio_sample_fmt;
3376 if (audio_sample_rate)
3377 audio_enc->sample_rate = audio_sample_rate;
3379 if (audio_language) {
3380 av_dict_set(&st->metadata, "language", audio_language, 0);
3381 av_freep(&audio_language);
3384 /* reset some key parameters */
3390 static OutputStream *new_data_stream(AVFormatContext *oc)
3394 AVCodecContext *data_enc;
3396 ost = new_output_stream(oc, AVMEDIA_TYPE_DATA);
3398 data_enc = st->codec;
3399 if (!st->stream_copy) {
3400 fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3405 data_enc->codec_tag= data_codec_tag;
3407 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3408 data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3415 static OutputStream *new_subtitle_stream(AVFormatContext *oc)
3419 AVCodecContext *subtitle_enc;
3421 ost = new_output_stream(oc, AVMEDIA_TYPE_SUBTITLE);
3423 subtitle_enc = st->codec;
3425 ost->bitstream_filters = subtitle_bitstream_filters;
3426 subtitle_bitstream_filters= NULL;
3428 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3430 if(subtitle_codec_tag)
3431 subtitle_enc->codec_tag= subtitle_codec_tag;
3433 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3434 subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3437 if (subtitle_language) {
3438 av_dict_set(&st->metadata, "language", subtitle_language, 0);
3439 av_freep(&subtitle_language);
3442 subtitle_disable = 0;
3446 /* arg format is "output-stream-index:streamid-value". */
3447 static int opt_streamid(const char *opt, const char *arg)
3453 av_strlcpy(idx_str, arg, sizeof(idx_str));
3454 p = strchr(idx_str, ':');
3457 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3462 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
3463 streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3464 streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3468 static int copy_chapters(int infile, int outfile)
3470 AVFormatContext *is = input_files[infile].ctx;
3471 AVFormatContext *os = output_files[outfile].ctx;
3474 for (i = 0; i < is->nb_chapters; i++) {
3475 AVChapter *in_ch = is->chapters[i], *out_ch;
3476 int64_t ts_off = av_rescale_q(start_time - input_files[infile].ts_offset,
3477 AV_TIME_BASE_Q, in_ch->time_base);
3478 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
3479 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3482 if (in_ch->end < ts_off)
3484 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3487 out_ch = av_mallocz(sizeof(AVChapter));
3489 return AVERROR(ENOMEM);
3491 out_ch->id = in_ch->id;
3492 out_ch->time_base = in_ch->time_base;
3493 out_ch->start = FFMAX(0, in_ch->start - ts_off);
3494 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
3496 if (metadata_chapters_autocopy)
3497 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3500 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3502 return AVERROR(ENOMEM);
3503 os->chapters[os->nb_chapters - 1] = out_ch;
3508 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
3511 AVFormatContext *ic = NULL;
3513 err = avformat_open_input(&ic, filename, NULL, NULL);
3516 /* copy stream format */
3517 for(i=0;i<ic->nb_streams;i++) {
3522 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3523 ost = new_output_stream(s, codec->type);
3526 // FIXME: a more elegant solution is needed
3527 memcpy(st, ic->streams[i], sizeof(AVStream));
3528 st->info = av_malloc(sizeof(*st->info));
3529 memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
3530 avcodec_copy_context(st->codec, ic->streams[i]->codec);
3532 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3533 choose_sample_fmt(st, codec);
3534 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3535 choose_pixel_fmt(st, codec);
3538 av_close_input_file(ic);
3542 static int opt_output_file(const char *opt, const char *filename)
3544 AVFormatContext *oc;
3546 AVOutputFormat *file_oformat;
3550 if (!strcmp(filename, "-"))
3553 err = avformat_alloc_output_context2(&oc, NULL, last_asked_format, filename);
3554 last_asked_format = NULL;
3556 print_error(filename, err);
3560 file_oformat= oc->oformat;
3562 if (!strcmp(file_oformat->name, "ffm") &&
3563 av_strstart(filename, "http:", NULL)) {
3564 /* special case for files sent to ffserver: we get the stream
3565 parameters from ffserver */
3566 int err = read_ffserver_streams(oc, filename);
3568 print_error(filename, err);
3571 } else if (!nb_stream_maps) {
3572 /* pick the "best" stream of each type */
3573 #define NEW_STREAM(type, index)\
3575 ost = new_ ## type ## _stream(oc);\
3576 ost->source_index = index;\
3577 ost->sync_ist = &input_streams[index];\
3578 input_streams[index].discard = 0;\
3581 /* video: highest resolution */
3582 if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3583 int area = 0, idx = -1;
3584 for (i = 0; i < nb_input_streams; i++) {
3585 ist = &input_streams[i];
3586 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3587 ist->st->codec->width * ist->st->codec->height > area) {
3588 area = ist->st->codec->width * ist->st->codec->height;
3592 NEW_STREAM(video, idx);
3595 /* audio: most channels */
3596 if (!audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3597 int channels = 0, idx = -1;
3598 for (i = 0; i < nb_input_streams; i++) {
3599 ist = &input_streams[i];
3600 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3601 ist->st->codec->channels > channels) {
3602 channels = ist->st->codec->channels;
3606 NEW_STREAM(audio, idx);
3609 /* subtitles: pick first */
3610 if (!subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3611 for (i = 0; i < nb_input_streams; i++)
3612 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3613 NEW_STREAM(subtitle, i);
3617 /* do something with data? */
3619 for (i = 0; i < nb_stream_maps; i++) {
3620 StreamMap *map = &stream_maps[i];
3625 ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
3626 switch (ist->st->codec->codec_type) {
3627 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(oc); break;
3628 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(oc); break;
3629 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(oc); break;
3630 case AVMEDIA_TYPE_DATA: ost = new_data_stream(oc); break;
3632 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3633 map->file_index, map->stream_index);
3637 ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
3638 ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3639 map->sync_stream_index];
3644 av_dict_copy(&oc->metadata, metadata, 0);
3645 av_dict_free(&metadata);
3648 output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
3649 output_files[nb_output_files - 1].ctx = oc;
3650 output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
3651 output_files[nb_output_files - 1].recording_time = recording_time;
3652 output_files[nb_output_files - 1].start_time = start_time;
3653 output_files[nb_output_files - 1].limit_filesize = limit_filesize;
3654 av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
3656 /* check filename in case of an image number is expected */
3657 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3658 if (!av_filename_number_test(oc->filename)) {
3659 print_error(oc->filename, AVERROR(EINVAL));
3664 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3665 /* test if it already exists to avoid loosing precious files */
3666 if (!file_overwrite &&
3667 (strchr(filename, ':') == NULL ||
3668 filename[1] == ':' ||
3669 av_strstart(filename, "file:", NULL))) {
3670 if (avio_check(filename, 0) == 0) {
3672 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3674 if (!read_yesno()) {
3675 fprintf(stderr, "Not overwriting - exiting\n");