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_FILES 100
113 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
114 static const char *last_asked_format = NULL;
115 static double *ts_scale;
116 static int nb_ts_scale;
118 static AVFormatContext *output_files[MAX_FILES];
119 static AVDictionary *output_opts[MAX_FILES];
120 static int nb_output_files = 0;
122 static StreamMap *stream_maps = NULL;
123 static int nb_stream_maps;
125 static AVDictionary *codec_names;
127 /* first item specifies output metadata, second is input */
128 static MetadataMap (*meta_data_maps)[2] = NULL;
129 static int nb_meta_data_maps;
130 static int metadata_global_autocopy = 1;
131 static int metadata_streams_autocopy = 1;
132 static int metadata_chapters_autocopy = 1;
134 static int chapters_input_file = INT_MAX;
136 /* indexed by output file stream index */
137 static int *streamid_map = NULL;
138 static int nb_streamid_map = 0;
140 static int frame_width = 0;
141 static int frame_height = 0;
142 static float frame_aspect_ratio = 0;
143 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
144 static int frame_bits_per_raw_sample = 0;
145 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
146 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
147 static AVRational frame_rate;
148 static float video_qscale = 0;
149 static uint16_t *intra_matrix = NULL;
150 static uint16_t *inter_matrix = NULL;
151 static const char *video_rc_override_string=NULL;
152 static int video_disable = 0;
153 static int video_discard = 0;
154 static unsigned int video_codec_tag = 0;
155 static char *video_language = NULL;
156 static int same_quant = 0;
157 static int do_deinterlace = 0;
158 static int top_field_first = -1;
159 static int me_threshold = 0;
160 static int intra_dc_precision = 8;
161 static int qp_hist = 0;
163 static char *vfilters = NULL;
166 static int intra_only = 0;
167 static int audio_sample_rate = 0;
168 #define QSCALE_NONE -99999
169 static float audio_qscale = QSCALE_NONE;
170 static int audio_disable = 0;
171 static int audio_channels = 0;
172 static unsigned int audio_codec_tag = 0;
173 static char *audio_language = NULL;
175 static int subtitle_disable = 0;
176 static char *subtitle_language = NULL;
177 static unsigned int subtitle_codec_tag = 0;
179 static int data_disable = 0;
180 static unsigned int data_codec_tag = 0;
182 static float mux_preload= 0.5;
183 static float mux_max_delay= 0.7;
185 static int64_t recording_time = INT64_MAX;
186 static int64_t start_time = 0;
187 static int64_t input_ts_offset = 0;
188 static int file_overwrite = 0;
189 static AVDictionary *metadata;
190 static int do_benchmark = 0;
191 static int do_hex_dump = 0;
192 static int do_pkt_dump = 0;
193 static int do_psnr = 0;
194 static int do_pass = 0;
195 static const char *pass_logfilename_prefix;
196 static int video_sync_method= -1;
197 static int audio_sync_method= 0;
198 static float audio_drift_threshold= 0.1;
199 static int copy_ts= 0;
200 static int copy_tb= 0;
201 static int opt_shortest = 0;
202 static char *vstats_filename;
203 static FILE *vstats_file;
204 static int opt_programid = 0;
205 static int copy_initial_nonkeyframes = 0;
207 static int rate_emu = 0;
209 static int audio_volume = 256;
211 static int exit_on_error = 0;
212 static int using_stdin = 0;
213 static int verbose = 1;
214 static int run_as_daemon = 0;
215 static int thread_count= 1;
216 static int q_pressed = 0;
217 static int64_t video_size = 0;
218 static int64_t audio_size = 0;
219 static int64_t extra_size = 0;
220 static int nb_frames_dup = 0;
221 static int nb_frames_drop = 0;
222 static int input_sync;
223 static uint64_t limit_filesize = 0;
224 static int force_fps = 0;
225 static char *forced_key_frames = NULL;
227 static float dts_delta_threshold = 10;
229 static int64_t timer_start;
231 static uint8_t *audio_buf;
232 static uint8_t *audio_out;
233 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
235 static short *samples;
237 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
238 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
239 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
241 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
245 typedef struct OutputStream {
246 int file_index; /* file index */
247 int index; /* stream index in the output file */
248 int source_index; /* InputStream index */
249 AVStream *st; /* stream in the output file */
250 int encoding_needed; /* true if encoding needed for this stream */
252 /* input pts and corresponding output pts
254 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
255 struct InputStream *sync_ist; /* input stream to sync against */
256 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
257 AVBitStreamFilterContext *bitstream_filters;
262 AVFrame resample_frame; /* temporary frame for image resampling */
263 struct SwsContext *img_resample_ctx; /* for image resampling */
266 int resample_pix_fmt;
267 AVRational frame_rate;
269 float frame_aspect_ratio;
271 /* forced key frames */
272 int64_t *forced_kf_pts;
278 ReSampleContext *resample; /* for audio resampling */
279 int resample_sample_fmt;
280 int resample_channels;
281 int resample_sample_rate;
283 AVAudioConvert *reformat_ctx;
284 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
288 AVFilterContext *output_video_filter;
289 AVFilterContext *input_video_filter;
290 AVFilterBufferRef *picref;
292 AVFilterGraph *graph;
299 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
300 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
302 typedef struct InputStream {
305 int discard; /* true if stream data should be discarded */
306 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
309 int64_t start; /* time when read started */
310 int64_t next_pts; /* synthetic pts for cases where pkt.pts
312 int64_t pts; /* current pts */
314 int is_start; /* is 1 at the start and after a discontinuity */
315 int showed_multi_packet_warning;
316 int is_past_recording_time;
320 typedef struct InputFile {
321 AVFormatContext *ctx;
322 int eof_reached; /* true if eof reached */
323 int ist_index; /* index of first stream in ist_table */
324 int buffer_size; /* current total buffer size */
331 /* init terminal so that we can grab keys */
332 static struct termios oldtty;
335 static InputStream *input_streams = NULL;
336 static int nb_input_streams = 0;
337 static InputFile *input_files = NULL;
338 static int nb_input_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 ? // overriden 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];
520 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
522 avformat_free_context(s);
523 av_free(output_streams_for_file[i]);
524 av_dict_free(&output_opts[i]);
526 for(i=0;i<nb_input_files;i++) {
527 av_close_input_file(input_files[i].ctx);
529 for (i = 0; i < nb_input_streams; i++)
530 av_dict_free(&input_streams[i].opts);
532 av_free(intra_matrix);
533 av_free(inter_matrix);
537 av_free(vstats_filename);
539 av_free(streamid_map);
540 av_free(meta_data_maps);
542 av_freep(&input_streams);
543 av_freep(&input_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 return (double)(ist->pts - start_time)/AV_TIME_BASE;
688 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
692 AVPacket new_pkt= *pkt;
693 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
694 &new_pkt.data, &new_pkt.size,
695 pkt->data, pkt->size,
696 pkt->flags & AV_PKT_FLAG_KEY);
699 new_pkt.destruct= av_destruct_packet;
701 fprintf(stderr, "%s failed for stream %d, codec %s",
702 bsfc->filter->name, pkt->stream_index,
703 avctx->codec ? avctx->codec->name : "copy");
713 ret= av_interleaved_write_frame(s, pkt);
715 print_error("av_interleaved_write_frame()", ret);
720 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
722 static void do_audio_out(AVFormatContext *s,
725 unsigned char *buf, int size)
728 int64_t audio_out_size, audio_buf_size;
729 int64_t allocated_for_size= size;
731 int size_out, frame_bytes, ret, resample_changed;
732 AVCodecContext *enc= ost->st->codec;
733 AVCodecContext *dec= ist->st->codec;
734 int osize = av_get_bytes_per_sample(enc->sample_fmt);
735 int isize = av_get_bytes_per_sample(dec->sample_fmt);
736 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
739 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
740 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
741 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
742 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
743 audio_buf_size*= osize*enc->channels;
745 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
746 if(coded_bps > 8*osize)
747 audio_out_size= audio_out_size * coded_bps / (8*osize);
748 audio_out_size += FF_MIN_BUFFER_SIZE;
750 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
751 fprintf(stderr, "Buffer sizes too large\n");
755 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
756 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
757 if (!audio_buf || !audio_out){
758 fprintf(stderr, "Out of memory in do_audio_out\n");
762 if (enc->channels != dec->channels)
763 ost->audio_resample = 1;
765 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
766 ost->resample_channels != dec->channels ||
767 ost->resample_sample_rate != dec->sample_rate;
769 if ((ost->audio_resample && !ost->resample) || resample_changed) {
770 if (resample_changed) {
771 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",
772 ist->file_index, ist->st->index,
773 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
774 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
775 ost->resample_sample_fmt = dec->sample_fmt;
776 ost->resample_channels = dec->channels;
777 ost->resample_sample_rate = dec->sample_rate;
779 audio_resample_close(ost->resample);
781 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
782 if (audio_sync_method <= 1 &&
783 ost->resample_sample_fmt == enc->sample_fmt &&
784 ost->resample_channels == enc->channels &&
785 ost->resample_sample_rate == enc->sample_rate) {
786 ost->resample = NULL;
787 ost->audio_resample = 0;
789 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
790 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
791 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
792 enc->sample_rate, dec->sample_rate,
793 enc->sample_fmt, dec->sample_fmt,
795 if (!ost->resample) {
796 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
797 dec->channels, dec->sample_rate,
798 enc->channels, enc->sample_rate);
804 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
805 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
806 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
807 if (ost->reformat_ctx)
808 av_audio_convert_free(ost->reformat_ctx);
809 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
810 dec->sample_fmt, 1, NULL, 0);
811 if (!ost->reformat_ctx) {
812 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
813 av_get_sample_fmt_name(dec->sample_fmt),
814 av_get_sample_fmt_name(enc->sample_fmt));
817 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
820 if(audio_sync_method){
821 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
822 - av_fifo_size(ost->fifo)/(enc->channels * 2);
823 double idelta= delta*dec->sample_rate / enc->sample_rate;
824 int byte_delta= ((int)idelta)*2*dec->channels;
826 //FIXME resample delay
827 if(fabs(delta) > 50){
828 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
830 byte_delta= FFMAX(byte_delta, -size);
834 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
839 static uint8_t *input_tmp= NULL;
840 input_tmp= av_realloc(input_tmp, byte_delta + size);
842 if(byte_delta > allocated_for_size - size){
843 allocated_for_size= byte_delta + (int64_t)size;
848 memset(input_tmp, 0, byte_delta);
849 memcpy(input_tmp + byte_delta, buf, size);
853 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
855 }else if(audio_sync_method>1){
856 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
857 av_assert0(ost->audio_resample);
859 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
860 // 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));
861 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
865 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
866 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
868 if (ost->audio_resample) {
870 size_out = audio_resample(ost->resample,
871 (short *)buftmp, (short *)buf,
872 size / (dec->channels * isize));
873 size_out = size_out * enc->channels * osize;
879 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
880 const void *ibuf[6]= {buftmp};
881 void *obuf[6]= {audio_buf};
882 int istride[6]= {isize};
883 int ostride[6]= {osize};
884 int len= size_out/istride[0];
885 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
886 printf("av_audio_convert() failed\n");
892 size_out = len*osize;
895 /* now encode as many frames as possible */
896 if (enc->frame_size > 1) {
897 /* output resampled raw samples */
898 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
899 fprintf(stderr, "av_fifo_realloc2() failed\n");
902 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
904 frame_bytes = enc->frame_size * osize * enc->channels;
906 while (av_fifo_size(ost->fifo) >= frame_bytes) {
908 av_init_packet(&pkt);
910 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
912 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
914 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
917 fprintf(stderr, "Audio encoding failed\n");
921 pkt.stream_index= ost->index;
924 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
925 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
926 pkt.flags |= AV_PKT_FLAG_KEY;
927 write_frame(s, &pkt, enc, ost->bitstream_filters);
929 ost->sync_opts += enc->frame_size;
933 av_init_packet(&pkt);
935 ost->sync_opts += size_out / (osize * enc->channels);
937 /* output a pcm frame */
938 /* determine the size of the coded buffer */
941 size_out = size_out*coded_bps/8;
943 if(size_out > audio_out_size){
944 fprintf(stderr, "Internal error, buffer size too small\n");
948 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
949 ret = avcodec_encode_audio(enc, audio_out, size_out,
952 fprintf(stderr, "Audio encoding failed\n");
956 pkt.stream_index= ost->index;
959 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
960 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
961 pkt.flags |= AV_PKT_FLAG_KEY;
962 write_frame(s, &pkt, enc, ost->bitstream_filters);
966 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
970 AVPicture picture_tmp;
973 dec = ist->st->codec;
975 /* deinterlace : must be done before any resize */
976 if (do_deinterlace) {
979 /* create temporary picture */
980 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
981 buf = av_malloc(size);
985 picture2 = &picture_tmp;
986 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
988 if(avpicture_deinterlace(picture2, picture,
989 dec->pix_fmt, dec->width, dec->height) < 0) {
990 /* if error, do not deinterlace */
991 fprintf(stderr, "Deinterlacing failed\n");
1000 if (picture != picture2)
1001 *picture = *picture2;
1005 /* we begin to correct av delay at this threshold */
1006 #define AV_DELAY_MAX 0.100
1008 static void do_subtitle_out(AVFormatContext *s,
1014 static uint8_t *subtitle_out = NULL;
1015 int subtitle_out_max_size = 1024 * 1024;
1016 int subtitle_out_size, nb, i;
1017 AVCodecContext *enc;
1020 if (pts == AV_NOPTS_VALUE) {
1021 fprintf(stderr, "Subtitle packets must have a pts\n");
1027 enc = ost->st->codec;
1029 if (!subtitle_out) {
1030 subtitle_out = av_malloc(subtitle_out_max_size);
1033 /* Note: DVB subtitle need one packet to draw them and one other
1034 packet to clear them */
1035 /* XXX: signal it in the codec context ? */
1036 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1041 for(i = 0; i < nb; i++) {
1042 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1043 // start_display_time is required to be 0
1044 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1045 sub->end_display_time -= sub->start_display_time;
1046 sub->start_display_time = 0;
1047 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1048 subtitle_out_max_size, sub);
1049 if (subtitle_out_size < 0) {
1050 fprintf(stderr, "Subtitle encoding failed\n");
1054 av_init_packet(&pkt);
1055 pkt.stream_index = ost->index;
1056 pkt.data = subtitle_out;
1057 pkt.size = subtitle_out_size;
1058 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1059 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1060 /* XXX: the pts correction is handled here. Maybe handling
1061 it in the codec would be better */
1063 pkt.pts += 90 * sub->start_display_time;
1065 pkt.pts += 90 * sub->end_display_time;
1067 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1071 static int bit_buffer_size= 1024*256;
1072 static uint8_t *bit_buffer= NULL;
1074 static void do_video_out(AVFormatContext *s,
1077 AVFrame *in_picture,
1078 int *frame_size, float quality)
1080 int nb_frames, i, ret, av_unused resample_changed;
1081 AVFrame *final_picture, *formatted_picture;
1082 AVCodecContext *enc, *dec;
1085 enc = ost->st->codec;
1086 dec = ist->st->codec;
1088 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1090 /* by default, we output a single frame */
1095 if(video_sync_method){
1096 double vdelta = sync_ipts - ost->sync_opts;
1097 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1100 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1103 }else if(vdelta>0.6)
1104 ost->sync_opts= lrintf(sync_ipts);
1105 }else if (vdelta > 1.1)
1106 nb_frames = lrintf(vdelta);
1107 //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);
1108 if (nb_frames == 0){
1111 fprintf(stderr, "*** drop!\n");
1112 }else if (nb_frames > 1) {
1113 nb_frames_dup += nb_frames - 1;
1115 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1118 ost->sync_opts= lrintf(sync_ipts);
1120 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1124 formatted_picture = in_picture;
1125 final_picture = formatted_picture;
1127 resample_changed = ost->resample_width != dec->width ||
1128 ost->resample_height != dec->height ||
1129 ost->resample_pix_fmt != dec->pix_fmt;
1131 #if !CONFIG_AVFILTER
1132 if (resample_changed) {
1133 av_log(NULL, AV_LOG_INFO,
1134 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1135 ist->file_index, ist->st->index,
1136 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1137 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1138 ost->resample_width = dec->width;
1139 ost->resample_height = dec->height;
1140 ost->resample_pix_fmt = dec->pix_fmt;
1143 ost->video_resample = dec->width != enc->width ||
1144 dec->height != enc->height ||
1145 dec->pix_fmt != enc->pix_fmt;
1147 if (ost->video_resample) {
1148 final_picture = &ost->resample_frame;
1149 if (!ost->img_resample_ctx || resample_changed) {
1150 /* initialize the destination picture */
1151 if (!ost->resample_frame.data[0]) {
1152 avcodec_get_frame_defaults(&ost->resample_frame);
1153 if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
1154 enc->width, enc->height)) {
1155 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1159 /* initialize a new scaler context */
1160 sws_freeContext(ost->img_resample_ctx);
1161 ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt,
1162 enc->width, enc->height, enc->pix_fmt,
1163 ost->sws_flags, NULL, NULL, NULL);
1164 if (ost->img_resample_ctx == NULL) {
1165 fprintf(stderr, "Cannot get resampling context\n");
1169 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1170 0, ost->resample_height, final_picture->data, final_picture->linesize);
1173 if (resample_changed) {
1174 avfilter_graph_free(&ost->graph);
1175 if (configure_video_filters(ist, ost)) {
1176 fprintf(stderr, "Error reinitialising filters!\n");
1181 if (resample_changed) {
1182 ost->resample_width = dec->width;
1183 ost->resample_height = dec->height;
1184 ost->resample_pix_fmt = dec->pix_fmt;
1187 /* duplicates frame if needed */
1188 for(i=0;i<nb_frames;i++) {
1190 av_init_packet(&pkt);
1191 pkt.stream_index= ost->index;
1193 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1194 /* raw pictures are written as AVPicture structure to
1195 avoid any copies. We support temorarily the older
1197 AVFrame* old_frame = enc->coded_frame;
1198 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1199 pkt.data= (uint8_t *)final_picture;
1200 pkt.size= sizeof(AVPicture);
1201 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1202 pkt.flags |= AV_PKT_FLAG_KEY;
1204 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1205 enc->coded_frame = old_frame;
1207 AVFrame big_picture;
1209 big_picture= *final_picture;
1210 /* better than nothing: use input picture interlaced
1212 big_picture.interlaced_frame = in_picture->interlaced_frame;
1213 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1214 if(top_field_first == -1)
1215 big_picture.top_field_first = in_picture->top_field_first;
1217 big_picture.top_field_first = top_field_first;
1220 /* handles same_quant here. This is not correct because it may
1221 not be a global option */
1222 big_picture.quality = quality;
1224 big_picture.pict_type = 0;
1225 // big_picture.pts = AV_NOPTS_VALUE;
1226 big_picture.pts= ost->sync_opts;
1227 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1228 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1229 if (ost->forced_kf_index < ost->forced_kf_count &&
1230 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1231 big_picture.pict_type = AV_PICTURE_TYPE_I;
1232 ost->forced_kf_index++;
1234 ret = avcodec_encode_video(enc,
1235 bit_buffer, bit_buffer_size,
1238 fprintf(stderr, "Video encoding failed\n");
1243 pkt.data= bit_buffer;
1245 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1246 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1247 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1248 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1249 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1251 if(enc->coded_frame->key_frame)
1252 pkt.flags |= AV_PKT_FLAG_KEY;
1253 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1256 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1257 // enc->frame_number-1, ret, enc->pict_type);
1258 /* if two pass, output log */
1259 if (ost->logfile && enc->stats_out) {
1260 fprintf(ost->logfile, "%s", enc->stats_out);
1265 ost->frame_number++;
1269 static double psnr(double d){
1270 return -10.0*log(d)/log(10.0);
1273 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1276 AVCodecContext *enc;
1278 double ti1, bitrate, avg_bitrate;
1280 /* this is executed just the first time do_video_stats is called */
1282 vstats_file = fopen(vstats_filename, "w");
1289 enc = ost->st->codec;
1290 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1291 frame_number = ost->frame_number;
1292 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1293 if (enc->flags&CODEC_FLAG_PSNR)
1294 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1296 fprintf(vstats_file,"f_size= %6d ", frame_size);
1297 /* compute pts value */
1298 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1302 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1303 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1304 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1305 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1306 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1310 static void print_report(AVFormatContext **output_files,
1311 OutputStream **ost_table, int nb_ostreams,
1316 AVFormatContext *oc;
1318 AVCodecContext *enc;
1319 int frame_number, vid, i;
1321 int64_t pts = INT64_MAX;
1322 static int64_t last_time = -1;
1323 static int qp_histogram[52];
1325 if (!is_last_report) {
1327 /* display the report every 0.5 seconds */
1328 cur_time = av_gettime();
1329 if (last_time == -1) {
1330 last_time = cur_time;
1333 if ((cur_time - last_time) < 500000)
1335 last_time = cur_time;
1339 oc = output_files[0];
1341 total_size = avio_size(oc->pb);
1342 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1343 total_size= avio_tell(oc->pb);
1347 for(i=0;i<nb_ostreams;i++) {
1350 enc = ost->st->codec;
1351 if (!ost->st->stream_copy && enc->coded_frame)
1352 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1353 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1354 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1356 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1357 float t = (av_gettime()-timer_start) / 1000000.0;
1359 frame_number = ost->frame_number;
1360 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1361 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1363 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1367 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1370 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1372 if (enc->flags&CODEC_FLAG_PSNR){
1374 double error, error_sum=0;
1375 double scale, scale_sum=0;
1376 char type[3]= {'Y','U','V'};
1377 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1380 error= enc->error[j];
1381 scale= enc->width*enc->height*255.0*255.0*frame_number;
1383 error= enc->coded_frame->error[j];
1384 scale= enc->width*enc->height*255.0*255.0;
1389 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1391 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1395 /* compute min output value */
1396 pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
1397 ost->st->time_base, AV_TIME_BASE_Q));
1400 if (verbose > 0 || is_last_report) {
1401 int hours, mins, secs, us;
1402 secs = pts / AV_TIME_BASE;
1403 us = pts % AV_TIME_BASE;
1409 bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1411 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1412 "size=%8.0fkB time=", total_size / 1024.0);
1413 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1414 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1415 (100 * us) / AV_TIME_BASE);
1416 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1417 "bitrate=%6.1fkbits/s", bitrate);
1419 if (nb_frames_dup || nb_frames_drop)
1420 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1421 nb_frames_dup, nb_frames_drop);
1424 fprintf(stderr, "%s \r", buf);
1429 if (is_last_report && verbose >= 0){
1430 int64_t raw= audio_size + video_size + extra_size;
1431 fprintf(stderr, "\n");
1432 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1436 100.0*(total_size - raw)/raw
1441 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1443 int fill_char = 0x00;
1444 if (sample_fmt == AV_SAMPLE_FMT_U8)
1446 memset(buf, fill_char, size);
1449 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1450 static int output_packet(InputStream *ist, int ist_index,
1451 OutputStream **ost_table, int nb_ostreams,
1452 const AVPacket *pkt)
1454 AVFormatContext *os;
1459 void *buffer_to_free = NULL;
1460 static unsigned int samples_size= 0;
1461 AVSubtitle subtitle, *subtitle_to_free;
1462 int64_t pkt_pts = AV_NOPTS_VALUE;
1464 int frame_available;
1469 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1471 if(ist->next_pts == AV_NOPTS_VALUE)
1472 ist->next_pts= ist->pts;
1476 av_init_packet(&avpkt);
1484 if(pkt->dts != AV_NOPTS_VALUE)
1485 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1486 if(pkt->pts != AV_NOPTS_VALUE)
1487 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1489 //while we have more to decode or while the decoder did output something on EOF
1490 while (avpkt.size > 0 || (!pkt && got_output)) {
1491 uint8_t *data_buf, *decoded_data_buf;
1492 int data_size, decoded_data_size;
1494 ist->pts= ist->next_pts;
1496 if(avpkt.size && avpkt.size != pkt->size &&
1497 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1498 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1499 ist->showed_multi_packet_warning=1;
1502 /* decode the packet if needed */
1503 decoded_data_buf = NULL; /* fail safe */
1504 decoded_data_size= 0;
1505 data_buf = avpkt.data;
1506 data_size = avpkt.size;
1507 subtitle_to_free = NULL;
1508 if (ist->decoding_needed) {
1509 switch(ist->st->codec->codec_type) {
1510 case AVMEDIA_TYPE_AUDIO:{
1511 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1512 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1514 samples= av_malloc(samples_size);
1516 decoded_data_size= samples_size;
1517 /* XXX: could avoid copy if PCM 16 bits with same
1518 endianness as CPU */
1519 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1526 got_output = decoded_data_size > 0;
1527 /* Some bug in mpeg audio decoder gives */
1528 /* decoded_data_size < 0, it seems they are overflows */
1530 /* no audio frame */
1533 decoded_data_buf = (uint8_t *)samples;
1534 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1535 (ist->st->codec->sample_rate * ist->st->codec->channels);
1537 case AVMEDIA_TYPE_VIDEO:
1538 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1539 /* XXX: allocate picture correctly */
1540 avcodec_get_frame_defaults(&picture);
1541 avpkt.pts = pkt_pts;
1542 avpkt.dts = ist->pts;
1543 pkt_pts = AV_NOPTS_VALUE;
1545 ret = avcodec_decode_video2(ist->st->codec,
1546 &picture, &got_output, &avpkt);
1547 quality = same_quant ? picture.quality : 0;
1551 /* no picture yet */
1552 goto discard_packet;
1554 ist->next_pts = ist->pts = picture.best_effort_timestamp;
1555 if (ist->st->codec->time_base.num != 0) {
1556 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1557 ist->next_pts += ((int64_t)AV_TIME_BASE *
1558 ist->st->codec->time_base.num * ticks) /
1559 ist->st->codec->time_base.den;
1562 buffer_to_free = NULL;
1563 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1565 case AVMEDIA_TYPE_SUBTITLE:
1566 ret = avcodec_decode_subtitle2(ist->st->codec,
1567 &subtitle, &got_output, &avpkt);
1571 goto discard_packet;
1573 subtitle_to_free = &subtitle;
1580 switch(ist->st->codec->codec_type) {
1581 case AVMEDIA_TYPE_AUDIO:
1582 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1583 ist->st->codec->sample_rate;
1585 case AVMEDIA_TYPE_VIDEO:
1586 if (ist->st->codec->time_base.num != 0) {
1587 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1588 ist->next_pts += ((int64_t)AV_TIME_BASE *
1589 ist->st->codec->time_base.num * ticks) /
1590 ist->st->codec->time_base.den;
1599 if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1600 if (start_time == 0 || ist->pts >= start_time) {
1601 for(i=0;i<nb_ostreams;i++) {
1603 if (ost->input_video_filter && ost->source_index == ist_index) {
1604 if (!picture.sample_aspect_ratio.num)
1605 picture.sample_aspect_ratio = ist->st->sample_aspect_ratio;
1606 picture.pts = ist->pts;
1608 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, AV_VSRC_BUF_FLAG_OVERWRITE);
1614 // preprocess audio (volume)
1615 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1616 if (audio_volume != 256) {
1619 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1620 int v = ((*volp) * audio_volume + 128) >> 8;
1621 if (v < -32768) v = -32768;
1622 if (v > 32767) v = 32767;
1628 /* frame rate emulation */
1630 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1631 int64_t now = av_gettime() - ist->start;
1635 /* if output time reached then transcode raw format,
1636 encode packets and output them */
1637 if (start_time == 0 || ist->pts >= start_time)
1638 for(i=0;i<nb_ostreams;i++) {
1642 if (ost->source_index == ist_index) {
1644 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1645 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1646 while (frame_available) {
1647 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter) {
1648 AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
1649 if (av_vsink_buffer_get_video_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
1652 avfilter_fill_frame_from_video_buffer_ref(&picture, ost->picref);
1653 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1657 os = output_files[ost->file_index];
1659 /* set the input output pts pairs */
1660 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1662 if (ost->encoding_needed) {
1663 av_assert0(ist->decoding_needed);
1664 switch(ost->st->codec->codec_type) {
1665 case AVMEDIA_TYPE_AUDIO:
1666 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1668 case AVMEDIA_TYPE_VIDEO:
1670 if (ost->picref->video && !ost->frame_aspect_ratio)
1671 ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
1673 do_video_out(os, ost, ist, &picture, &frame_size,
1674 same_quant ? quality : ost->st->codec->global_quality);
1675 if (vstats_filename && frame_size)
1676 do_video_stats(os, ost, frame_size);
1678 case AVMEDIA_TYPE_SUBTITLE:
1679 do_subtitle_out(os, ost, ist, &subtitle,
1686 AVFrame avframe; //FIXME/XXX remove this
1689 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1691 av_init_packet(&opkt);
1693 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1694 #if !CONFIG_AVFILTER
1700 /* no reencoding needed : output the packet directly */
1701 /* force the input stream PTS */
1703 avcodec_get_frame_defaults(&avframe);
1704 ost->st->codec->coded_frame= &avframe;
1705 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1707 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1708 audio_size += data_size;
1709 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1710 video_size += data_size;
1714 opkt.stream_index= ost->index;
1715 if(pkt->pts != AV_NOPTS_VALUE)
1716 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1718 opkt.pts= AV_NOPTS_VALUE;
1720 if (pkt->dts == AV_NOPTS_VALUE)
1721 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1723 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1724 opkt.dts -= ost_tb_start_time;
1726 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1727 opkt.flags= pkt->flags;
1729 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1730 if( ost->st->codec->codec_id != CODEC_ID_H264
1731 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1732 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1734 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1735 opkt.destruct= av_destruct_packet;
1737 opkt.data = data_buf;
1738 opkt.size = data_size;
1741 if (os->oformat->flags & AVFMT_RAWPICTURE) {
1742 /* store AVPicture in AVPacket, as expected by the output format */
1743 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1744 opkt.data = (uint8_t *)&pict;
1745 opkt.size = sizeof(AVPicture);
1746 opkt.flags |= AV_PKT_FLAG_KEY;
1748 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1749 ost->st->codec->frame_number++;
1750 ost->frame_number++;
1751 av_free_packet(&opkt);
1755 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1756 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1757 avfilter_unref_buffer(ost->picref);
1763 av_free(buffer_to_free);
1764 /* XXX: allocate the subtitles in the codec ? */
1765 if (subtitle_to_free) {
1766 avsubtitle_free(subtitle_to_free);
1767 subtitle_to_free = NULL;
1774 for(i=0;i<nb_ostreams;i++) {
1776 if (ost->source_index == ist_index) {
1777 AVCodecContext *enc= ost->st->codec;
1778 os = output_files[ost->file_index];
1780 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1782 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1785 if (ost->encoding_needed) {
1789 av_init_packet(&pkt);
1790 pkt.stream_index= ost->index;
1792 switch(ost->st->codec->codec_type) {
1793 case AVMEDIA_TYPE_AUDIO:
1794 fifo_bytes = av_fifo_size(ost->fifo);
1796 /* encode any samples remaining in fifo */
1797 if (fifo_bytes > 0) {
1798 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1799 int fs_tmp = enc->frame_size;
1801 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1802 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1803 enc->frame_size = fifo_bytes / (osize * enc->channels);
1805 int frame_bytes = enc->frame_size*osize*enc->channels;
1806 if (allocated_audio_buf_size < frame_bytes)
1808 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1811 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1812 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1813 ost->st->time_base.num, enc->sample_rate);
1814 enc->frame_size = fs_tmp;
1817 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1820 fprintf(stderr, "Audio encoding failed\n");
1824 pkt.flags |= AV_PKT_FLAG_KEY;
1826 case AVMEDIA_TYPE_VIDEO:
1827 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1829 fprintf(stderr, "Video encoding failed\n");
1833 if(enc->coded_frame && enc->coded_frame->key_frame)
1834 pkt.flags |= AV_PKT_FLAG_KEY;
1835 if (ost->logfile && enc->stats_out) {
1836 fprintf(ost->logfile, "%s", enc->stats_out);
1845 pkt.data= bit_buffer;
1847 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1848 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1849 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1859 static void print_sdp(AVFormatContext **avc, int n)
1863 av_sdp_create(avc, n, sdp, sizeof(sdp));
1864 printf("SDP:\n%s\n", sdp);
1869 * The following code is the main loop of the file converter
1871 static int transcode(AVFormatContext **output_files,
1872 int nb_output_files,
1873 InputFile *input_files,
1876 int ret = 0, i, j, k, n, nb_ostreams = 0, step;
1878 AVFormatContext *is, *os;
1879 AVCodecContext *codec, *icodec;
1880 OutputStream *ost, **ost_table = NULL;
1885 uint8_t no_packet[MAX_FILES]={0};
1886 int no_packet_count=0;
1887 int nb_frame_threshold[AVMEDIA_TYPE_NB]={0};
1888 int nb_streams[AVMEDIA_TYPE_NB]={0};
1891 for (i = 0; i < nb_input_streams; i++)
1892 input_streams[i].start = av_gettime();
1894 /* output stream init */
1896 for(i=0;i<nb_output_files;i++) {
1897 os = output_files[i];
1898 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1899 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1900 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1901 ret = AVERROR(EINVAL);
1904 nb_ostreams += os->nb_streams;
1907 ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
1911 for(k=0;k<nb_output_files;k++) {
1912 os = output_files[k];
1913 for(i=0;i<os->nb_streams;i++,n++) {
1914 nb_streams[os->streams[i]->codec->codec_type]++;
1917 for(step=1<<30; step; step>>=1){
1918 int found_streams[AVMEDIA_TYPE_NB]={0};
1919 for(j=0; j<AVMEDIA_TYPE_NB; j++)
1920 nb_frame_threshold[j] += step;
1922 for(j=0; j<nb_input_streams; j++) {
1924 ist = &input_streams[j];
1927 AVFormatContext *f= input_files[ ist->file_index ].ctx;
1929 for(pi=0; pi<f->nb_programs; pi++){
1930 AVProgram *p= f->programs[pi];
1931 if(p->id == opt_programid)
1932 for(si=0; si<p->nb_stream_indexes; si++){
1933 if(f->streams[ p->stream_index[si] ] == ist->st)
1938 if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip
1939 && nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames){
1940 found_streams[ist->st->codec->codec_type]++;
1943 for(j=0; j<AVMEDIA_TYPE_NB; j++)
1944 if(found_streams[j] < nb_streams[j])
1945 nb_frame_threshold[j] -= step;
1948 for(k=0;k<nb_output_files;k++) {
1949 os = output_files[k];
1950 for (i = 0; i < os->nb_streams; i++, n++)
1951 ost_table[n] = output_streams_for_file[k][i];
1954 /* for each output stream, we compute the right encoding parameters */
1955 for(i=0;i<nb_ostreams;i++) {
1957 os = output_files[ost->file_index];
1958 ist = &input_streams[ost->source_index];
1960 codec = ost->st->codec;
1961 icodec = ist->st->codec;
1963 ost->st->disposition = ist->st->disposition;
1964 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1965 codec->chroma_sample_location = icodec->chroma_sample_location;
1967 if (ost->st->stream_copy) {
1968 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1970 if (extra_size > INT_MAX)
1973 /* if stream_copy is selected, no need to decode or encode */
1974 codec->codec_id = icodec->codec_id;
1975 codec->codec_type = icodec->codec_type;
1977 if(!codec->codec_tag){
1978 if( !os->oformat->codec_tag
1979 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1980 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1981 codec->codec_tag = icodec->codec_tag;
1984 codec->bit_rate = icodec->bit_rate;
1985 codec->rc_max_rate = icodec->rc_max_rate;
1986 codec->rc_buffer_size = icodec->rc_buffer_size;
1987 codec->extradata= av_mallocz(extra_size);
1988 if (!codec->extradata)
1990 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1991 codec->extradata_size= icodec->extradata_size;
1993 codec->time_base = ist->st->time_base;
1994 if(!strcmp(os->oformat->name, "avi")) {
1995 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){
1996 codec->time_base = icodec->time_base;
1997 codec->time_base.num *= icodec->ticks_per_frame;
1998 codec->time_base.den *= 2;
2000 } else if(!(os->oformat->flags & AVFMT_VARIABLE_FPS)) {
2001 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){
2002 codec->time_base = icodec->time_base;
2003 codec->time_base.num *= icodec->ticks_per_frame;
2006 av_reduce(&codec->time_base.num, &codec->time_base.den,
2007 codec->time_base.num, codec->time_base.den, INT_MAX);
2009 switch(codec->codec_type) {
2010 case AVMEDIA_TYPE_AUDIO:
2011 if(audio_volume != 256) {
2012 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2015 codec->channel_layout = icodec->channel_layout;
2016 codec->sample_rate = icodec->sample_rate;
2017 codec->channels = icodec->channels;
2018 codec->frame_size = icodec->frame_size;
2019 codec->audio_service_type = icodec->audio_service_type;
2020 codec->block_align= icodec->block_align;
2021 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2022 codec->block_align= 0;
2023 if(codec->codec_id == CODEC_ID_AC3)
2024 codec->block_align= 0;
2026 case AVMEDIA_TYPE_VIDEO:
2027 codec->pix_fmt = icodec->pix_fmt;
2028 codec->width = icodec->width;
2029 codec->height = icodec->height;
2030 codec->has_b_frames = icodec->has_b_frames;
2031 if (!codec->sample_aspect_ratio.num) {
2032 codec->sample_aspect_ratio =
2033 ost->st->sample_aspect_ratio =
2034 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2035 ist->st->codec->sample_aspect_ratio.num ?
2036 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2039 case AVMEDIA_TYPE_SUBTITLE:
2040 codec->width = icodec->width;
2041 codec->height = icodec->height;
2043 case AVMEDIA_TYPE_DATA:
2050 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2051 switch(codec->codec_type) {
2052 case AVMEDIA_TYPE_AUDIO:
2053 ost->fifo= av_fifo_alloc(1024);
2056 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2057 if (!codec->sample_rate) {
2058 codec->sample_rate = icodec->sample_rate;
2060 choose_sample_rate(ost->st, ost->enc);
2061 codec->time_base = (AVRational){1, codec->sample_rate};
2062 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2063 codec->sample_fmt = icodec->sample_fmt;
2064 choose_sample_fmt(ost->st, ost->enc);
2065 if (!codec->channels) {
2066 codec->channels = icodec->channels;
2067 codec->channel_layout = icodec->channel_layout;
2069 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2070 codec->channel_layout = 0;
2071 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2072 icodec->request_channels = codec->channels;
2073 ist->decoding_needed = 1;
2074 ost->encoding_needed = 1;
2075 ost->resample_sample_fmt = icodec->sample_fmt;
2076 ost->resample_sample_rate = icodec->sample_rate;
2077 ost->resample_channels = icodec->channels;
2079 case AVMEDIA_TYPE_VIDEO:
2080 if (codec->pix_fmt == PIX_FMT_NONE)
2081 codec->pix_fmt = icodec->pix_fmt;
2082 choose_pixel_fmt(ost->st, ost->enc);
2084 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2085 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2089 if (!codec->width || !codec->height) {
2090 codec->width = icodec->width;
2091 codec->height = icodec->height;
2094 ost->video_resample = codec->width != icodec->width ||
2095 codec->height != icodec->height ||
2096 codec->pix_fmt != icodec->pix_fmt;
2097 if (ost->video_resample) {
2098 codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2101 ost->resample_height = icodec->height;
2102 ost->resample_width = icodec->width;
2103 ost->resample_pix_fmt= icodec->pix_fmt;
2104 ost->encoding_needed = 1;
2105 ist->decoding_needed = 1;
2107 if (!ost->frame_rate.num)
2108 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2109 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2110 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2111 ost->frame_rate = ost->enc->supported_framerates[idx];
2113 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2114 if( av_q2d(codec->time_base) < 0.001 && video_sync_method
2115 && (video_sync_method==1 || (video_sync_method<0 && !(os->oformat->flags & AVFMT_VARIABLE_FPS)))){
2116 av_log(os, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
2117 "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
2121 if (configure_video_filters(ist, ost)) {
2122 fprintf(stderr, "Error opening filters!\n");
2127 case AVMEDIA_TYPE_SUBTITLE:
2128 ost->encoding_needed = 1;
2129 ist->decoding_needed = 1;
2136 if (ost->encoding_needed && codec->codec_id != CODEC_ID_H264 &&
2137 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2138 char logfilename[1024];
2141 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2142 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2144 if (codec->flags & CODEC_FLAG_PASS1) {
2145 f = fopen(logfilename, "wb");
2147 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2153 size_t logbuffer_size;
2154 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2155 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2158 codec->stats_in = logbuffer;
2162 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2163 /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
2164 int size= codec->width * codec->height;
2165 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);
2170 bit_buffer = av_malloc(bit_buffer_size);
2172 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2174 ret = AVERROR(ENOMEM);
2178 /* open each encoder */
2179 for(i=0;i<nb_ostreams;i++) {
2181 if (ost->encoding_needed) {
2182 AVCodec *codec = ost->enc;
2183 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2185 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2186 ost->st->codec->codec_id, ost->file_index, ost->index);
2187 ret = AVERROR(EINVAL);
2190 if (dec->subtitle_header) {
2191 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2192 if (!ost->st->codec->subtitle_header) {
2193 ret = AVERROR(ENOMEM);
2196 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2197 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2199 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2200 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2201 ost->file_index, ost->index);
2202 ret = AVERROR(EINVAL);
2205 assert_codec_experimental(ost->st->codec, 1);
2206 assert_avoptions(ost->opts);
2207 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2208 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2209 "It takes bits/s as argument, not kbits/s\n");
2210 extra_size += ost->st->codec->extradata_size;
2214 /* open each decoder */
2215 for (i = 0; i < nb_input_streams; i++) {
2216 ist = &input_streams[i];
2217 if (ist->decoding_needed) {
2218 AVCodec *codec = ist->dec;
2220 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2222 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2223 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2224 ret = AVERROR(EINVAL);
2227 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2228 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2229 ist->file_index, ist->st->index);
2230 ret = AVERROR(EINVAL);
2233 assert_codec_experimental(ist->st->codec, 0);
2234 assert_avoptions(ost->opts);
2239 for (i = 0; i < nb_input_streams; i++) {
2241 ist = &input_streams[i];
2243 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2244 ist->next_pts = AV_NOPTS_VALUE;
2248 /* open files and write file headers */
2249 for(i=0;i<nb_output_files;i++) {
2250 os = output_files[i];
2251 if (avformat_write_header(os, &output_opts[i]) < 0) {
2252 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2253 ret = AVERROR(EINVAL);
2256 // assert_avoptions(output_opts[i]);
2257 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2263 /* dump the file output parameters - cannot be done before in case
2265 for(i=0;i<nb_output_files;i++) {
2266 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2269 /* dump the stream mapping */
2271 fprintf(stderr, "Stream mapping:\n");
2272 for(i=0;i<nb_ostreams;i++) {
2274 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2275 input_streams[ost->source_index].file_index,
2276 input_streams[ost->source_index].st->index,
2279 if (ost->sync_ist != &input_streams[ost->source_index])
2280 fprintf(stderr, " [sync #%d.%d]",
2281 ost->sync_ist->file_index,
2282 ost->sync_ist->st->index);
2283 if (ost->st->stream_copy)
2284 fprintf(stderr, " (copy)");
2285 fprintf(stderr, "\n");
2290 fprintf(stderr, "%s\n", error);
2295 print_sdp(output_files, nb_output_files);
2300 fprintf(stderr, "Press [q] to stop, [?] for help\n");
2301 avio_set_interrupt_cb(decode_interrupt_cb);
2305 timer_start = av_gettime();
2307 for(; received_sigterm == 0;) {
2308 int file_index, ist_index;
2316 /* if 'q' pressed, exits */
2320 /* read_key() returns 0 on EOF */
2324 if (key == '+') verbose++;
2325 if (key == '-') verbose--;
2326 if (key == 's') qp_hist ^= 1;
2329 do_hex_dump = do_pkt_dump = 0;
2330 } else if(do_pkt_dump){
2334 av_log_set_level(AV_LOG_DEBUG);
2336 if (key == 'd' || key == 'D'){
2339 debug = input_streams[0].st->codec->debug<<1;
2340 if(!debug) debug = 1;
2341 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2344 scanf("%d", &debug);
2345 for(i=0;i<nb_input_streams;i++) {
2346 input_streams[i].st->codec->debug = debug;
2348 for(i=0;i<nb_ostreams;i++) {
2350 ost->st->codec->debug = debug;
2352 if(debug) av_log_set_level(AV_LOG_DEBUG);
2353 fprintf(stderr,"debug=%d\n", debug);
2356 fprintf(stderr, "key function\n"
2357 "? show this help\n"
2358 "+ increase verbosity\n"
2359 "- decrease verbosity\n"
2360 "D cycle through available debug modes\n"
2361 "h dump packets/hex press to cycle through the 3 states\n"
2363 "s Show QP histogram\n"
2368 /* select the stream that we must read now by looking at the
2369 smallest output pts */
2371 for(i=0;i<nb_ostreams;i++) {
2374 os = output_files[ost->file_index];
2375 ist = &input_streams[ost->source_index];
2376 if(ist->is_past_recording_time || no_packet[ist->file_index])
2378 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2379 ipts = (double)ist->pts;
2380 if (!input_files[ist->file_index].eof_reached){
2381 if(ipts < ipts_min) {
2383 if(input_sync ) file_index = ist->file_index;
2385 if(opts < opts_min) {
2387 if(!input_sync) file_index = ist->file_index;
2390 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2395 /* if none, if is finished */
2396 if (file_index < 0) {
2397 if(no_packet_count){
2399 memset(no_packet, 0, sizeof(no_packet));
2406 /* finish if limit size exhausted */
2407 if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2410 /* read a frame from it and output it in the fifo */
2411 is = input_files[file_index].ctx;
2412 ret= av_read_frame(is, &pkt);
2413 if(ret == AVERROR(EAGAIN)){
2414 no_packet[file_index]=1;
2419 input_files[file_index].eof_reached = 1;
2427 memset(no_packet, 0, sizeof(no_packet));
2430 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2431 is->streams[pkt.stream_index]);
2433 /* the following test is needed in case new streams appear
2434 dynamically in stream : we ignore them */
2435 if (pkt.stream_index >= input_files[file_index].nb_streams)
2436 goto discard_packet;
2437 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2438 ist = &input_streams[ist_index];
2440 goto discard_packet;
2442 if (pkt.dts != AV_NOPTS_VALUE)
2443 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2444 if (pkt.pts != AV_NOPTS_VALUE)
2445 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2447 if (ist->ts_scale) {
2448 if(pkt.pts != AV_NOPTS_VALUE)
2449 pkt.pts *= ist->ts_scale;
2450 if(pkt.dts != AV_NOPTS_VALUE)
2451 pkt.dts *= ist->ts_scale;
2454 // 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);
2455 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2456 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2457 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2458 int64_t delta= pkt_dts - ist->next_pts;
2459 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2460 input_files[ist->file_index].ts_offset -= delta;
2462 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2463 delta, input_files[ist->file_index].ts_offset);
2464 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2465 if(pkt.pts != AV_NOPTS_VALUE)
2466 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2470 /* finish if recording time exhausted */
2471 if (recording_time != INT64_MAX &&
2472 (pkt.pts != AV_NOPTS_VALUE ?
2473 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000})
2475 av_compare_ts(ist->pts, AV_TIME_BASE_Q, recording_time + start_time, (AVRational){1, 1000000})
2477 ist->is_past_recording_time = 1;
2478 goto discard_packet;
2481 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2482 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2485 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2486 ist->file_index, ist->st->index);
2489 av_free_packet(&pkt);
2494 av_free_packet(&pkt);
2496 /* dump report by using the output first video and audio streams */
2497 print_report(output_files, ost_table, nb_ostreams, 0);
2500 /* at the end of stream, we must flush the decoder buffers */
2501 for (i = 0; i < nb_input_streams; i++) {
2502 ist = &input_streams[i];
2503 if (ist->decoding_needed) {
2504 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2510 /* write the trailer if needed and close file */
2511 for(i=0;i<nb_output_files;i++) {
2512 os = output_files[i];
2513 av_write_trailer(os);
2516 /* dump report by using the first video and audio streams */
2517 print_report(output_files, ost_table, nb_ostreams, 1);
2519 /* close each encoder */
2520 for(i=0;i<nb_ostreams;i++) {
2522 if (ost->encoding_needed) {
2523 av_freep(&ost->st->codec->stats_in);
2524 avcodec_close(ost->st->codec);
2527 avfilter_graph_free(&ost->graph);
2531 /* close each decoder */
2532 for (i = 0; i < nb_input_streams; i++) {
2533 ist = &input_streams[i];
2534 if (ist->decoding_needed) {
2535 avcodec_close(ist->st->codec);
2543 av_freep(&bit_buffer);
2546 for(i=0;i<nb_ostreams;i++) {
2549 if (ost->st->stream_copy)
2550 av_freep(&ost->st->codec->extradata);
2552 fclose(ost->logfile);
2553 ost->logfile = NULL;
2555 av_fifo_free(ost->fifo); /* works even if fifo is not
2556 initialized but set to zero */
2557 av_freep(&ost->st->codec->subtitle_header);
2558 av_free(ost->resample_frame.data[0]);
2559 av_free(ost->forced_kf_pts);
2560 if (ost->video_resample)
2561 sws_freeContext(ost->img_resample_ctx);
2563 audio_resample_close(ost->resample);
2564 if (ost->reformat_ctx)
2565 av_audio_convert_free(ost->reformat_ctx);
2566 av_dict_free(&ost->opts);
2575 static int opt_format(const char *opt, const char *arg)
2577 last_asked_format = arg;
2581 static int opt_video_rc_override_string(const char *opt, const char *arg)
2583 video_rc_override_string = arg;
2587 static int opt_me_threshold(const char *opt, const char *arg)
2589 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2593 static int opt_verbose(const char *opt, const char *arg)
2595 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2599 static int opt_frame_rate(const char *opt, const char *arg)
2601 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2602 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2608 static int opt_frame_crop(const char *opt, const char *arg)
2610 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2611 return AVERROR(EINVAL);
2614 static int opt_frame_size(const char *opt, const char *arg)
2616 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2617 fprintf(stderr, "Incorrect frame size\n");
2618 return AVERROR(EINVAL);
2623 static int opt_pad(const char *opt, const char *arg) {
2624 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2628 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2630 if (strcmp(arg, "list")) {
2631 frame_pix_fmt = av_get_pix_fmt(arg);
2632 if (frame_pix_fmt == PIX_FMT_NONE) {
2633 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2634 return AVERROR(EINVAL);
2637 opt_pix_fmts(NULL, NULL);
2643 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2650 p = strchr(arg, ':');
2652 x = strtol(arg, &end, 10);
2654 y = strtol(end+1, &end, 10);
2656 ar = (double)x / (double)y;
2658 ar = strtod(arg, NULL);
2661 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2662 return AVERROR(EINVAL);
2664 frame_aspect_ratio = ar;
2668 static int opt_metadata(const char *opt, const char *arg)
2670 char *mid= strchr(arg, '=');
2673 fprintf(stderr, "Missing =\n");
2678 av_dict_set(&metadata, arg, mid, 0);
2683 static int opt_qscale(const char *opt, const char *arg)
2685 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2686 if (video_qscale <= 0 || video_qscale > 255) {
2687 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2688 return AVERROR(EINVAL);
2693 static int opt_top_field_first(const char *opt, const char *arg)
2695 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2696 return opt_default(opt, arg);
2699 static int opt_thread_count(const char *opt, const char *arg)
2701 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2704 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2709 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2711 if (strcmp(arg, "list")) {
2712 audio_sample_fmt = av_get_sample_fmt(arg);
2713 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2714 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2715 return AVERROR(EINVAL);
2720 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2721 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2727 static int opt_audio_rate(const char *opt, const char *arg)
2729 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2733 static int opt_audio_channels(const char *opt, const char *arg)
2735 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2739 static int opt_codec(const char *opt, const char *arg)
2741 return av_dict_set(&codec_names, opt, arg, 0);
2744 static int opt_audio_codec(const char *opt, const char *arg)
2746 return opt_codec("codec:a", arg);
2749 static int opt_video_codec(const char *opt, const char *arg)
2751 return opt_codec("codec:v", arg);
2754 static int opt_subtitle_codec(const char *opt, const char *arg)
2756 return opt_codec("codec:s", arg);
2759 static int opt_data_codec(const char *opt, const char *arg)
2761 return opt_codec("codec:d", arg);
2764 static int opt_codec_tag(const char *opt, const char *arg)
2767 uint32_t *codec_tag;
2769 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2770 !strcmp(opt, "vtag") ? &video_codec_tag :
2771 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2775 *codec_tag = strtol(arg, &tail, 0);
2777 *codec_tag = AV_RL32(arg);
2782 static int opt_map(const char *opt, const char *arg)
2784 StreamMap *m = NULL;
2785 int i, negative = 0, file_idx;
2786 int sync_file_idx = -1, sync_stream_idx;
2794 map = av_strdup(arg);
2796 /* parse sync stream first, just pick first matching stream */
2797 if (sync = strchr(map, ',')) {
2799 sync_file_idx = strtol(sync + 1, &sync, 0);
2800 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2801 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2806 for (i = 0; i < input_files[sync_file_idx].ctx->nb_streams; i++)
2807 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2808 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2809 sync_stream_idx = i;
2812 if (i == input_files[sync_file_idx].ctx->nb_streams) {
2813 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2814 "match any streams.\n", arg);
2820 file_idx = strtol(map, &p, 0);
2821 if (file_idx >= nb_input_files || file_idx < 0) {
2822 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2826 /* disable some already defined maps */
2827 for (i = 0; i < nb_stream_maps; i++) {
2828 m = &stream_maps[i];
2829 if (check_stream_specifier(input_files[m->file_index].ctx,
2830 input_files[m->file_index].ctx->streams[m->stream_index],
2831 *p == ':' ? p + 1 : p) > 0)
2835 for (i = 0; i < input_files[file_idx].ctx->nb_streams; i++) {
2836 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2837 *p == ':' ? p + 1 : p) <= 0)
2839 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2840 m = &stream_maps[nb_stream_maps - 1];
2842 m->file_index = file_idx;
2843 m->stream_index = i;
2845 if (sync_file_idx >= 0) {
2846 m->sync_file_index = sync_file_idx;
2847 m->sync_stream_index = sync_stream_idx;
2849 m->sync_file_index = file_idx;
2850 m->sync_stream_index = i;
2855 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2863 static void parse_meta_type(char *arg, char *type, int *index)
2873 if (*(++arg) == ':')
2874 *index = strtol(++arg, NULL, 0);
2877 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2884 static int opt_map_metadata(const char *opt, const char *arg)
2886 MetadataMap *m, *m1;
2889 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2890 &nb_meta_data_maps, nb_meta_data_maps + 1);
2892 m = &meta_data_maps[nb_meta_data_maps - 1][1];
2893 m->file = strtol(arg, &p, 0);
2894 parse_meta_type(p, &m->type, &m->index);
2896 m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2897 if (p = strchr(opt, ':'))
2898 parse_meta_type(p, &m1->type, &m1->index);
2902 if (m->type == 'g' || m1->type == 'g')
2903 metadata_global_autocopy = 0;
2904 if (m->type == 's' || m1->type == 's')
2905 metadata_streams_autocopy = 0;
2906 if (m->type == 'c' || m1->type == 'c')
2907 metadata_chapters_autocopy = 0;
2912 static int opt_input_ts_scale(const char *opt, const char *arg)
2914 unsigned int stream;
2918 stream = strtol(arg, &p, 0);
2921 scale= strtod(p, &p);
2923 if(stream >= MAX_STREAMS)
2926 ts_scale = grow_array(ts_scale, sizeof(*ts_scale), &nb_ts_scale, stream + 1);
2927 ts_scale[stream] = scale;
2931 static int opt_recording_time(const char *opt, const char *arg)
2933 recording_time = parse_time_or_die(opt, arg, 1);
2937 static int opt_start_time(const char *opt, const char *arg)
2939 start_time = parse_time_or_die(opt, arg, 1);
2943 static int opt_input_ts_offset(const char *opt, const char *arg)
2945 input_ts_offset = parse_time_or_die(opt, arg, 1);
2949 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2951 const char *codec_string = encoder ? "encoder" : "decoder";
2955 return CODEC_ID_NONE;
2957 avcodec_find_encoder_by_name(name) :
2958 avcodec_find_decoder_by_name(name);
2960 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2963 if(codec->type != type) {
2964 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2970 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2972 AVDictionaryEntry *e = NULL;
2973 char *codec_name = NULL;
2976 while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2977 char *p = strchr(e->key, ':');
2979 if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2980 codec_name = e->value;
2987 st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
2988 return avcodec_find_encoder(st->codec->codec_id);
2990 } else if (!strcmp(codec_name, "copy"))
2991 st->stream_copy = 1;
2993 st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2994 return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2995 avcodec_find_decoder_by_name(codec_name);
3001 static int opt_input_file(const char *opt, const char *filename)
3003 AVFormatContext *ic;
3004 AVInputFormat *file_iformat = NULL;
3005 int err, i, ret, rfps, rfps_base;
3008 AVDictionary **opts;
3009 int orig_nb_streams; // number of streams before avformat_find_stream_info
3011 if (last_asked_format) {
3012 if (!(file_iformat = av_find_input_format(last_asked_format))) {
3013 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3016 last_asked_format = NULL;
3019 if (!strcmp(filename, "-"))
3022 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3023 !strcmp(filename, "/dev/stdin");
3025 /* get default parameters from command line */
3026 ic = avformat_alloc_context();
3028 print_error(filename, AVERROR(ENOMEM));
3031 if (audio_sample_rate) {
3032 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3033 av_dict_set(&format_opts, "sample_rate", buf, 0);
3035 if (audio_channels) {
3036 snprintf(buf, sizeof(buf), "%d", audio_channels);
3037 av_dict_set(&format_opts, "channels", buf, 0);
3039 if (frame_rate.num) {
3040 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3041 av_dict_set(&format_opts, "framerate", buf, 0);
3043 if (frame_width && frame_height) {
3044 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3045 av_dict_set(&format_opts, "video_size", buf, 0);
3047 if (frame_pix_fmt != PIX_FMT_NONE)
3048 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3050 ic->flags |= AVFMT_FLAG_NONBLOCK;
3052 /* open the input file with generic libav function */
3053 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3055 print_error(filename, err);
3058 assert_avoptions(format_opts);
3063 for(i=0; i<ic->nb_streams; i++){
3064 ic->streams[i]->discard= AVDISCARD_ALL;
3066 for(i=0; i<ic->nb_programs; i++){
3067 AVProgram *p= ic->programs[i];
3068 if(p->id != opt_programid){
3069 p->discard = AVDISCARD_ALL;
3072 for(j=0; j<p->nb_stream_indexes; j++){
3073 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3078 fprintf(stderr, "Specified program id not found\n");
3084 /* apply forced codec ids */
3085 for (i = 0; i < ic->nb_streams; i++)
3086 choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
3088 /* Set AVCodecContext options for avformat_find_stream_info */
3089 opts = setup_find_stream_info_opts(ic, codec_opts);
3090 orig_nb_streams = ic->nb_streams;
3092 /* If not enough info to get the stream parameters, we decode the
3093 first frames to get it. (used in mpeg case for example) */
3094 ret = avformat_find_stream_info(ic, opts);
3095 if (ret < 0 && verbose >= 0) {
3096 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3097 av_close_input_file(ic);
3101 timestamp = start_time;
3102 /* add the stream start time */
3103 if (ic->start_time != AV_NOPTS_VALUE)
3104 timestamp += ic->start_time;
3106 /* if seeking requested, we execute it */
3107 if (start_time != 0) {
3108 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3110 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3111 filename, (double)timestamp / AV_TIME_BASE);
3113 /* reset seek info */
3117 /* update the current parameters so that they match the one of the input stream */
3118 for(i=0;i<ic->nb_streams;i++) {
3119 AVStream *st = ic->streams[i];
3120 AVCodecContext *dec = st->codec;
3123 dec->thread_count = thread_count;
3125 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3126 ist = &input_streams[nb_input_streams - 1];
3128 ist->file_index = nb_input_files;
3130 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3132 if (i < nb_ts_scale)
3133 ist->ts_scale = ts_scale[i];
3135 ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
3137 switch (dec->codec_type) {
3138 case AVMEDIA_TYPE_AUDIO:
3140 ist->dec = avcodec_find_decoder(dec->codec_id);
3142 st->discard= AVDISCARD_ALL;
3144 case AVMEDIA_TYPE_VIDEO:
3146 ist->dec = avcodec_find_decoder(dec->codec_id);
3147 rfps = ic->streams[i]->r_frame_rate.num;
3148 rfps_base = ic->streams[i]->r_frame_rate.den;
3150 dec->flags |= CODEC_FLAG_EMU_EDGE;
3153 dec->debug |= FF_DEBUG_MV;
3155 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3158 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3159 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3161 (float)rfps / rfps_base, rfps, rfps_base);
3165 st->discard= AVDISCARD_ALL;
3166 else if(video_discard)
3167 st->discard= video_discard;
3169 case AVMEDIA_TYPE_DATA:
3171 case AVMEDIA_TYPE_SUBTITLE:
3173 ist->dec = avcodec_find_decoder(dec->codec_id);
3174 if(subtitle_disable)
3175 st->discard = AVDISCARD_ALL;
3177 case AVMEDIA_TYPE_ATTACHMENT:
3178 case AVMEDIA_TYPE_UNKNOWN:
3185 /* dump the file content */
3187 av_dump_format(ic, nb_input_files, filename, 0);
3189 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3190 input_files[nb_input_files - 1].ctx = ic;
3191 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3192 input_files[nb_input_files - 1].ts_offset = input_ts_offset - (copy_ts ? 0 : timestamp);
3193 input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3195 top_field_first = -1;
3196 frame_rate = (AVRational){0, 0};
3197 frame_pix_fmt = PIX_FMT_NONE;
3200 audio_sample_rate = 0;
3202 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3203 av_freep(&ts_scale);
3206 for (i = 0; i < orig_nb_streams; i++)
3207 av_dict_free(&opts[i]);
3209 av_dict_free(&codec_names);
3215 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3216 AVCodecContext *avctx)
3222 for (p = kf; *p; p++)
3225 ost->forced_kf_count = n;
3226 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3227 if (!ost->forced_kf_pts) {
3228 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3231 for (i = 0; i < n; i++) {
3232 p = i ? strchr(p, ',') + 1 : kf;
3233 t = parse_time_or_die("force_key_frames", p, 1);
3234 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3238 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type)
3241 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3242 int idx = oc->nb_streams - 1;
3245 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3249 output_streams_for_file[nb_output_files] =
3250 grow_array(output_streams_for_file[nb_output_files],
3251 sizeof(*output_streams_for_file[nb_output_files]),
3252 &nb_output_streams_for_file[nb_output_files],
3254 ost = output_streams_for_file[nb_output_files][idx] =
3255 av_mallocz(sizeof(OutputStream));
3257 fprintf(stderr, "Could not alloc output stream\n");
3260 ost->file_index = nb_output_files;
3263 st->codec->codec_type = type;
3264 ost->enc = choose_codec(oc, st, type, codec_names);
3266 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3269 avcodec_get_context_defaults3(st->codec, ost->enc);
3270 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3272 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3276 static OutputStream *new_video_stream(AVFormatContext *oc)
3280 AVCodecContext *video_enc;
3282 ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO);
3284 if (!st->stream_copy) {
3285 ost->frame_aspect_ratio = frame_aspect_ratio;
3286 frame_aspect_ratio = 0;
3288 ost->avfilter = vfilters;
3293 ost->bitstream_filters = video_bitstream_filters;
3294 video_bitstream_filters= NULL;
3296 st->codec->thread_count= thread_count;
3298 video_enc = st->codec;
3301 video_enc->codec_tag= video_codec_tag;
3303 if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3304 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3307 if (st->stream_copy) {
3308 video_enc->sample_aspect_ratio =
3309 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3315 ost->frame_rate = frame_rate;
3317 video_enc->width = frame_width;
3318 video_enc->height = frame_height;
3319 video_enc->pix_fmt = frame_pix_fmt;
3320 video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3321 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3324 video_enc->gop_size = 0;
3325 if (video_qscale || same_quant) {
3326 video_enc->flags |= CODEC_FLAG_QSCALE;
3327 video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3331 video_enc->intra_matrix = intra_matrix;
3333 video_enc->inter_matrix = inter_matrix;
3335 p= video_rc_override_string;
3338 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3340 fprintf(stderr, "error parsing rc_override\n");
3343 video_enc->rc_override=
3344 av_realloc(video_enc->rc_override,
3345 sizeof(RcOverride)*(i+1));
3346 video_enc->rc_override[i].start_frame= start;
3347 video_enc->rc_override[i].end_frame = end;
3349 video_enc->rc_override[i].qscale= q;
3350 video_enc->rc_override[i].quality_factor= 1.0;
3353 video_enc->rc_override[i].qscale= 0;
3354 video_enc->rc_override[i].quality_factor= -q/100.0;
3359 video_enc->rc_override_count=i;
3360 if (!video_enc->rc_initial_buffer_occupancy)
3361 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3362 video_enc->me_threshold= me_threshold;
3363 video_enc->intra_dc_precision= intra_dc_precision - 8;
3366 video_enc->flags|= CODEC_FLAG_PSNR;
3371 video_enc->flags |= CODEC_FLAG_PASS1;
3373 video_enc->flags |= CODEC_FLAG_PASS2;
3377 if (forced_key_frames)
3378 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3380 if (video_language) {
3381 av_dict_set(&st->metadata, "language", video_language, 0);
3382 av_freep(&video_language);
3385 /* reset some key parameters */
3387 av_freep(&forced_key_frames);
3388 frame_pix_fmt = PIX_FMT_NONE;
3392 static OutputStream *new_audio_stream(AVFormatContext *oc)
3396 AVCodecContext *audio_enc;
3398 ost = new_output_stream(oc, AVMEDIA_TYPE_AUDIO);
3401 ost->bitstream_filters = audio_bitstream_filters;
3402 audio_bitstream_filters= NULL;
3404 st->codec->thread_count= thread_count;
3406 audio_enc = st->codec;
3407 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3410 audio_enc->codec_tag= audio_codec_tag;
3412 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3413 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3415 if (!st->stream_copy) {
3416 if (audio_qscale > QSCALE_NONE) {
3417 audio_enc->flags |= CODEC_FLAG_QSCALE;
3418 audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3421 audio_enc->channels = audio_channels;
3422 if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3423 audio_enc->sample_fmt = audio_sample_fmt;
3424 if (audio_sample_rate)
3425 audio_enc->sample_rate = audio_sample_rate;
3427 if (audio_language) {
3428 av_dict_set(&st->metadata, "language", audio_language, 0);
3429 av_freep(&audio_language);
3432 /* reset some key parameters */
3438 static OutputStream *new_data_stream(AVFormatContext *oc)
3442 AVCodecContext *data_enc;
3444 ost = new_output_stream(oc, AVMEDIA_TYPE_DATA);
3446 data_enc = st->codec;
3447 if (!st->stream_copy) {
3448 fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3453 data_enc->codec_tag= data_codec_tag;
3455 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3456 data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3463 static OutputStream *new_subtitle_stream(AVFormatContext *oc)
3467 AVCodecContext *subtitle_enc;
3469 ost = new_output_stream(oc, AVMEDIA_TYPE_SUBTITLE);
3471 subtitle_enc = st->codec;
3473 ost->bitstream_filters = subtitle_bitstream_filters;
3474 subtitle_bitstream_filters= NULL;
3476 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3478 if(subtitle_codec_tag)
3479 subtitle_enc->codec_tag= subtitle_codec_tag;
3481 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3482 subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3485 if (subtitle_language) {
3486 av_dict_set(&st->metadata, "language", subtitle_language, 0);
3487 av_freep(&subtitle_language);
3490 subtitle_disable = 0;
3494 /* arg format is "output-stream-index:streamid-value". */
3495 static int opt_streamid(const char *opt, const char *arg)
3501 av_strlcpy(idx_str, arg, sizeof(idx_str));
3502 p = strchr(idx_str, ':');
3505 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3510 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
3511 streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3512 streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3516 static int copy_chapters(int infile, int outfile)
3518 AVFormatContext *is = input_files[infile].ctx;
3519 AVFormatContext *os = output_files[outfile];
3522 for (i = 0; i < is->nb_chapters; i++) {
3523 AVChapter *in_ch = is->chapters[i], *out_ch;
3524 int64_t ts_off = av_rescale_q(start_time - input_files[infile].ts_offset,
3525 AV_TIME_BASE_Q, in_ch->time_base);
3526 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
3527 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3530 if (in_ch->end < ts_off)
3532 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3535 out_ch = av_mallocz(sizeof(AVChapter));
3537 return AVERROR(ENOMEM);
3539 out_ch->id = in_ch->id;
3540 out_ch->time_base = in_ch->time_base;
3541 out_ch->start = FFMAX(0, in_ch->start - ts_off);
3542 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
3544 if (metadata_chapters_autocopy)
3545 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3548 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3550 return AVERROR(ENOMEM);
3551 os->chapters[os->nb_chapters - 1] = out_ch;
3556 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
3559 AVFormatContext *ic = NULL;
3561 err = avformat_open_input(&ic, filename, NULL, NULL);
3564 /* copy stream format */
3565 for(i=0;i<ic->nb_streams;i++) {
3570 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3571 ost = new_output_stream(s, codec->type);
3574 // FIXME: a more elegant solution is needed
3575 memcpy(st, ic->streams[i], sizeof(AVStream));
3576 st->info = av_malloc(sizeof(*st->info));
3577 memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
3578 avcodec_copy_context(st->codec, ic->streams[i]->codec);
3580 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3581 choose_sample_fmt(st, codec);
3582 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3583 choose_pixel_fmt(st, codec);
3586 av_close_input_file(ic);
3590 static int opt_output_file(const char *opt, const char *filename)
3592 AVFormatContext *oc;
3594 AVOutputFormat *file_oformat;
3598 if(nb_output_files >= FF_ARRAY_ELEMS(output_files)){
3599 fprintf(stderr, "Too many output files\n");
3603 if (!strcmp(filename, "-"))
3606 err = avformat_alloc_output_context2(&oc, NULL, last_asked_format, filename);
3607 last_asked_format = NULL;
3609 print_error(filename, err);
3613 file_oformat= oc->oformat;
3615 if (!strcmp(file_oformat->name, "ffm") &&
3616 av_strstart(filename, "http:", NULL)) {
3617 /* special case for files sent to ffserver: we get the stream
3618 parameters from ffserver */
3619 int err = read_ffserver_streams(oc, filename);
3621 print_error(filename, err);
3624 } else if (!nb_stream_maps) {
3625 /* pick the "best" stream of each type */
3626 #define NEW_STREAM(type, index)\
3628 ost = new_ ## type ## _stream(oc);\
3629 ost->source_index = index;\
3630 ost->sync_ist = &input_streams[index];\
3631 input_streams[index].discard = 0;\
3634 /* video: highest resolution */
3635 if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3636 int area = 0, idx = -1;
3637 for (i = 0; i < nb_input_streams; i++) {
3638 ist = &input_streams[i];
3639 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3640 ist->st->codec->width * ist->st->codec->height > area) {
3641 area = ist->st->codec->width * ist->st->codec->height;
3645 NEW_STREAM(video, idx);
3648 /* audio: most channels */
3649 if (!audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3650 int channels = 0, idx = -1;
3651 for (i = 0; i < nb_input_streams; i++) {
3652 ist = &input_streams[i];
3653 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3654 ist->st->codec->channels > channels) {
3655 channels = ist->st->codec->channels;