3 * Copyright (c) 2000-2011 The libav developers.
5 * This file is part of Libav.
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 #include "libavformat/avformat.h"
31 #include "libavdevice/avdevice.h"
32 #include "libswscale/swscale.h"
33 #include "libavresample/avresample.h"
34 #include "libavutil/opt.h"
35 #include "libavutil/audioconvert.h"
36 #include "libavutil/parseutils.h"
37 #include "libavutil/samplefmt.h"
38 #include "libavutil/colorspace.h"
39 #include "libavutil/fifo.h"
40 #include "libavutil/intreadwrite.h"
41 #include "libavutil/dict.h"
42 #include "libavutil/mathematics.h"
43 #include "libavutil/pixdesc.h"
44 #include "libavutil/avstring.h"
45 #include "libavutil/libm.h"
46 #include "libavutil/imgutils.h"
47 #include "libavutil/time.h"
48 #include "libavformat/os_support.h"
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/buffersrc.h"
53 # include "libavfilter/buffersink.h"
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/resource.h>
58 #elif HAVE_GETPROCESSTIMES
61 #if HAVE_GETPROCESSMEMORYINFO
67 #include <sys/select.h>
78 #include "libavutil/avassert.h"
81 #define VSYNC_PASSTHROUGH 0
85 const char program_name[] = "avconv";
86 const int program_birth_year = 2000;
88 /* select an input stream for an output stream */
89 typedef struct StreamMap {
90 int disabled; /** 1 is this mapping is disabled by a negative map */
94 int sync_stream_index;
95 char *linklabel; /** name of an output link, for mapping lavfi outputs */
99 * select an input file for an output file
101 typedef struct MetadataMap {
102 int file; ///< file index
103 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
104 int index; ///< stream/chapter/program number
107 static const OptionDef *options;
109 static int video_discard = 0;
110 static int same_quant = 0;
111 static int do_deinterlace = 0;
112 static int intra_dc_precision = 8;
113 static int qp_hist = 0;
115 static int file_overwrite = 0;
116 static int do_benchmark = 0;
117 static int do_hex_dump = 0;
118 static int do_pkt_dump = 0;
119 static int do_pass = 0;
120 static char *pass_logfilename_prefix = NULL;
121 static int video_sync_method = VSYNC_AUTO;
122 static int audio_sync_method = 0;
123 static float audio_drift_threshold = 0.1;
124 static int copy_ts = 0;
125 static int copy_tb = 1;
126 static int opt_shortest = 0;
127 static char *vstats_filename;
128 static FILE *vstats_file;
130 static int audio_volume = 256;
132 static int exit_on_error = 0;
133 static int using_stdin = 0;
134 static int64_t video_size = 0;
135 static int64_t audio_size = 0;
136 static int64_t extra_size = 0;
137 static int nb_frames_dup = 0;
138 static int nb_frames_drop = 0;
139 static int input_sync;
141 static float dts_delta_threshold = 10;
143 static int print_stats = 1;
146 /* signal to input threads that they should exit; set by the main thread */
147 static int transcoding_finished;
150 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
152 typedef struct InputFilter {
153 AVFilterContext *filter;
154 struct InputStream *ist;
155 struct FilterGraph *graph;
159 typedef struct OutputFilter {
160 AVFilterContext *filter;
161 struct OutputStream *ost;
162 struct FilterGraph *graph;
165 /* temporary storage until stream maps are processed */
166 AVFilterInOut *out_tmp;
169 typedef struct FilterGraph {
171 const char *graph_desc;
173 AVFilterGraph *graph;
175 InputFilter **inputs;
177 OutputFilter **outputs;
181 typedef struct InputStream {
184 int discard; /* true if stream data should be discarded */
185 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
187 AVFrame *decoded_frame;
189 int64_t start; /* time when read started */
190 /* predicted dts of the next packet read for this stream or (when there are
191 * several frames in a packet) of the next frame in current packet */
193 /* dts of the last packet read for this stream */
195 PtsCorrectionContext pts_ctx;
197 int is_start; /* is 1 at the start and after a discontinuity */
198 int showed_multi_packet_warning;
200 AVRational framerate; /* framerate forced with -r */
204 int resample_pix_fmt;
206 int resample_sample_fmt;
207 int resample_sample_rate;
208 int resample_channels;
209 uint64_t resample_channel_layout;
211 /* a pool of free buffers for decoded data */
212 FrameBuffer *buffer_pool;
214 /* decoded data from this stream goes into all those filters
215 * currently video and audio only */
216 InputFilter **filters;
220 typedef struct InputFile {
221 AVFormatContext *ctx;
222 int eof_reached; /* true if eof reached */
223 int ist_index; /* index of first stream in ist_table */
224 int buffer_size; /* current total buffer size */
226 int nb_streams; /* number of stream that avconv is aware of; may be different
227 from ctx.nb_streams if new streams appear during av_read_frame() */
231 pthread_t thread; /* thread reading from this file */
232 int finished; /* the thread has exited */
233 int joined; /* the thread has been joined */
234 pthread_mutex_t fifo_lock; /* lock for access to fifo */
235 pthread_cond_t fifo_cond; /* the main thread will signal on this cond after reading from fifo */
236 AVFifoBuffer *fifo; /* demuxed packets are stored here; freed by the main thread */
240 typedef struct OutputStream {
241 int file_index; /* file index */
242 int index; /* stream index in the output file */
243 int source_index; /* InputStream index */
244 AVStream *st; /* stream in the output file */
245 int encoding_needed; /* true if encoding needed for this stream */
247 /* input pts and corresponding output pts
249 // double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
250 struct InputStream *sync_ist; /* input stream to sync against */
251 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
252 /* pts of the first frame encoded for this stream, used for limiting
255 AVBitStreamFilterContext *bitstream_filters;
258 AVFrame *filtered_frame;
261 AVRational frame_rate;
265 float frame_aspect_ratio;
268 /* forced key frames */
269 int64_t *forced_kf_pts;
272 char *forced_keyframes;
276 OutputFilter *filter;
281 int is_past_recording_time;
283 const char *attachment_filename;
284 int copy_initial_nonkeyframes;
286 enum PixelFormat pix_fmts[2];
290 typedef struct OutputFile {
291 AVFormatContext *ctx;
293 int ost_index; /* index of the first stream in output_streams */
294 int64_t recording_time; /* desired length of the resulting file in microseconds */
295 int64_t start_time; /* start time in microseconds */
296 uint64_t limit_filesize;
299 static InputStream **input_streams = NULL;
300 static int nb_input_streams = 0;
301 static InputFile **input_files = NULL;
302 static int nb_input_files = 0;
304 static OutputStream **output_streams = NULL;
305 static int nb_output_streams = 0;
306 static OutputFile **output_files = NULL;
307 static int nb_output_files = 0;
309 static FilterGraph **filtergraphs;
312 typedef struct OptionsContext {
313 /* input/output options */
317 SpecifierOpt *codec_names;
319 SpecifierOpt *audio_channels;
320 int nb_audio_channels;
321 SpecifierOpt *audio_sample_rate;
322 int nb_audio_sample_rate;
323 SpecifierOpt *frame_rates;
325 SpecifierOpt *frame_sizes;
327 SpecifierOpt *frame_pix_fmts;
328 int nb_frame_pix_fmts;
331 int64_t input_ts_offset;
334 SpecifierOpt *ts_scale;
336 SpecifierOpt *dump_attachment;
337 int nb_dump_attachment;
340 StreamMap *stream_maps;
342 /* first item specifies output metadata, second is input */
343 MetadataMap (*meta_data_maps)[2];
344 int nb_meta_data_maps;
345 int metadata_global_manual;
346 int metadata_streams_manual;
347 int metadata_chapters_manual;
348 const char **attachments;
351 int chapters_input_file;
353 int64_t recording_time;
354 uint64_t limit_filesize;
360 int subtitle_disable;
363 /* indexed by output file stream index */
367 SpecifierOpt *metadata;
369 SpecifierOpt *max_frames;
371 SpecifierOpt *bitstream_filters;
372 int nb_bitstream_filters;
373 SpecifierOpt *codec_tags;
375 SpecifierOpt *sample_fmts;
377 SpecifierOpt *qscale;
379 SpecifierOpt *forced_key_frames;
380 int nb_forced_key_frames;
381 SpecifierOpt *force_fps;
383 SpecifierOpt *frame_aspect_ratios;
384 int nb_frame_aspect_ratios;
385 SpecifierOpt *rc_overrides;
387 SpecifierOpt *intra_matrices;
388 int nb_intra_matrices;
389 SpecifierOpt *inter_matrices;
390 int nb_inter_matrices;
391 SpecifierOpt *top_field_first;
392 int nb_top_field_first;
393 SpecifierOpt *metadata_map;
395 SpecifierOpt *presets;
397 SpecifierOpt *copy_initial_nonkeyframes;
398 int nb_copy_initial_nonkeyframes;
399 SpecifierOpt *filters;
403 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
406 for (i = 0; i < o->nb_ ## name; i++) {\
407 char *spec = o->name[i].specifier;\
408 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
409 outvar = o->name[i].u.type;\
415 static void reset_options(OptionsContext *o)
417 const OptionDef *po = options;
420 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
422 void *dst = (uint8_t*)o + po->u.off;
424 if (po->flags & OPT_SPEC) {
425 SpecifierOpt **so = dst;
426 int i, *count = (int*)(so + 1);
427 for (i = 0; i < *count; i++) {
428 av_freep(&(*so)[i].specifier);
429 if (po->flags & OPT_STRING)
430 av_freep(&(*so)[i].u.str);
434 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
439 for (i = 0; i < o->nb_stream_maps; i++)
440 av_freep(&o->stream_maps[i].linklabel);
441 av_freep(&o->stream_maps);
442 av_freep(&o->meta_data_maps);
443 av_freep(&o->streamid_map);
445 memset(o, 0, sizeof(*o));
447 o->mux_max_delay = 0.7;
448 o->recording_time = INT64_MAX;
449 o->limit_filesize = UINT64_MAX;
450 o->chapters_input_file = INT_MAX;
457 * Define a function for building a string containing a list of
460 #define DEF_CHOOSE_FORMAT(type, var, supported_list, none, get_name, separator) \
461 static char *choose_ ## var ## s(OutputStream *ost) \
463 if (ost->st->codec->var != none) { \
464 get_name(ost->st->codec->var); \
465 return av_strdup(name); \
466 } else if (ost->enc->supported_list) { \
468 AVIOContext *s = NULL; \
472 if (avio_open_dyn_buf(&s) < 0) \
475 for (p = ost->enc->supported_list; *p != none; p++) { \
477 avio_printf(s, "%s" separator, name); \
479 len = avio_close_dyn_buf(s, &ret); \
486 #define GET_PIX_FMT_NAME(pix_fmt)\
487 const char *name = av_get_pix_fmt_name(pix_fmt);
489 DEF_CHOOSE_FORMAT(enum PixelFormat, pix_fmt, pix_fmts, PIX_FMT_NONE,
490 GET_PIX_FMT_NAME, ":")
492 #define GET_SAMPLE_FMT_NAME(sample_fmt)\
493 const char *name = av_get_sample_fmt_name(sample_fmt)
495 DEF_CHOOSE_FORMAT(enum AVSampleFormat, sample_fmt, sample_fmts,
496 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME, ",")
498 #define GET_SAMPLE_RATE_NAME(rate)\
500 snprintf(name, sizeof(name), "%d", rate);
502 DEF_CHOOSE_FORMAT(int, sample_rate, supported_samplerates, 0,
503 GET_SAMPLE_RATE_NAME, ",")
505 #define GET_CH_LAYOUT_NAME(ch_layout)\
507 snprintf(name, sizeof(name), "0x%"PRIx64, ch_layout);
509 DEF_CHOOSE_FORMAT(uint64_t, channel_layout, channel_layouts, 0,
510 GET_CH_LAYOUT_NAME, ",")
512 static FilterGraph *init_simple_filtergraph(InputStream *ist, OutputStream *ost)
514 FilterGraph *fg = av_mallocz(sizeof(*fg));
518 fg->index = nb_filtergraphs;
520 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs), &fg->nb_outputs,
522 if (!(fg->outputs[0] = av_mallocz(sizeof(*fg->outputs[0]))))
524 fg->outputs[0]->ost = ost;
525 fg->outputs[0]->graph = fg;
527 ost->filter = fg->outputs[0];
529 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs), &fg->nb_inputs,
531 if (!(fg->inputs[0] = av_mallocz(sizeof(*fg->inputs[0]))))
533 fg->inputs[0]->ist = ist;
534 fg->inputs[0]->graph = fg;
536 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
537 &ist->nb_filters, ist->nb_filters + 1);
538 ist->filters[ist->nb_filters - 1] = fg->inputs[0];
540 filtergraphs = grow_array(filtergraphs, sizeof(*filtergraphs),
541 &nb_filtergraphs, nb_filtergraphs + 1);
542 filtergraphs[nb_filtergraphs - 1] = fg;
547 static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
549 InputStream *ist = NULL;
550 enum AVMediaType type = avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx);
553 // TODO: support other filter types
554 if (type != AVMEDIA_TYPE_VIDEO && type != AVMEDIA_TYPE_AUDIO) {
555 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters supported "
564 int file_idx = strtol(in->name, &p, 0);
566 if (file_idx < 0 || file_idx >= nb_input_files) {
567 av_log(NULL, AV_LOG_FATAL, "Invalid file index %d in filtegraph description %s.\n",
568 file_idx, fg->graph_desc);
571 s = input_files[file_idx]->ctx;
573 for (i = 0; i < s->nb_streams; i++) {
574 if (s->streams[i]->codec->codec_type != type)
576 if (check_stream_specifier(s, s->streams[i], *p == ':' ? p + 1 : p) == 1) {
582 av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
583 "matches no streams.\n", p, fg->graph_desc);
586 ist = input_streams[input_files[file_idx]->ist_index + st->index];
588 /* find the first unused stream of corresponding type */
589 for (i = 0; i < nb_input_streams; i++) {
590 ist = input_streams[i];
591 if (ist->st->codec->codec_type == type && ist->discard)
594 if (i == nb_input_streams) {
595 av_log(NULL, AV_LOG_FATAL, "Cannot find a matching stream for "
596 "unlabeled input pad %d on filter %s", in->pad_idx,
597 in->filter_ctx->name);
604 ist->decoding_needed = 1;
605 ist->st->discard = AVDISCARD_NONE;
607 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs),
608 &fg->nb_inputs, fg->nb_inputs + 1);
609 if (!(fg->inputs[fg->nb_inputs - 1] = av_mallocz(sizeof(*fg->inputs[0]))))
611 fg->inputs[fg->nb_inputs - 1]->ist = ist;
612 fg->inputs[fg->nb_inputs - 1]->graph = fg;
614 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
615 &ist->nb_filters, ist->nb_filters + 1);
616 ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
619 static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
622 OutputStream *ost = ofilter->ost;
623 AVCodecContext *codec = ost->st->codec;
624 AVFilterContext *last_filter = out->filter_ctx;
625 int pad_idx = out->pad_idx;
629 snprintf(name, sizeof(name), "output stream %d:%d", ost->file_index, ost->index);
630 ret = avfilter_graph_create_filter(&ofilter->filter,
631 avfilter_get_by_name("buffersink"),
632 name, NULL, pix_fmts, fg->graph);
636 if (codec->width || codec->height) {
638 AVFilterContext *filter;
640 snprintf(args, sizeof(args), "%d:%d:flags=0x%X",
643 (unsigned)ost->sws_flags);
644 snprintf(name, sizeof(name), "scaler for output stream %d:%d",
645 ost->file_index, ost->index);
646 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
647 name, args, NULL, fg->graph)) < 0)
649 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
652 last_filter = filter;
656 if ((pix_fmts = choose_pix_fmts(ost))) {
657 AVFilterContext *filter;
658 snprintf(name, sizeof(name), "pixel format for output stream %d:%d",
659 ost->file_index, ost->index);
660 if ((ret = avfilter_graph_create_filter(&filter,
661 avfilter_get_by_name("format"),
662 "format", pix_fmts, NULL,
665 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
668 last_filter = filter;
673 if (ost->frame_rate.num) {
674 AVFilterContext *fps;
677 snprintf(args, sizeof(args), "fps=%d/%d", ost->frame_rate.num,
678 ost->frame_rate.den);
679 snprintf(name, sizeof(name), "fps for output stream %d:%d",
680 ost->file_index, ost->index);
681 ret = avfilter_graph_create_filter(&fps, avfilter_get_by_name("fps"),
682 name, args, NULL, fg->graph);
686 ret = avfilter_link(last_filter, pad_idx, fps, 0);
693 if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
699 static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
701 OutputStream *ost = ofilter->ost;
702 AVCodecContext *codec = ost->st->codec;
703 AVFilterContext *last_filter = out->filter_ctx;
704 int pad_idx = out->pad_idx;
705 char *sample_fmts, *sample_rates, *channel_layouts;
710 snprintf(name, sizeof(name), "output stream %d:%d", ost->file_index, ost->index);
711 ret = avfilter_graph_create_filter(&ofilter->filter,
712 avfilter_get_by_name("abuffersink"),
713 name, NULL, NULL, fg->graph);
717 if (codec->channels && !codec->channel_layout)
718 codec->channel_layout = av_get_default_channel_layout(codec->channels);
720 sample_fmts = choose_sample_fmts(ost);
721 sample_rates = choose_sample_rates(ost);
722 channel_layouts = choose_channel_layouts(ost);
723 if (sample_fmts || sample_rates || channel_layouts) {
724 AVFilterContext *format;
729 len += snprintf(args + len, sizeof(args) - len, "sample_fmts=%s:",
732 len += snprintf(args + len, sizeof(args) - len, "sample_rates=%s:",
735 len += snprintf(args + len, sizeof(args) - len, "channel_layouts=%s:",
739 av_freep(&sample_fmts);
740 av_freep(&sample_rates);
741 av_freep(&channel_layouts);
743 snprintf(name, sizeof(name), "audio format for output stream %d:%d",
744 ost->file_index, ost->index);
745 ret = avfilter_graph_create_filter(&format,
746 avfilter_get_by_name("aformat"),
747 name, args, NULL, fg->graph);
751 ret = avfilter_link(last_filter, pad_idx, format, 0);
755 last_filter = format;
759 if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
765 #define DESCRIBE_FILTER_LINK(f, inout, in) \
767 AVFilterContext *ctx = inout->filter_ctx; \
768 AVFilterPad *pads = in ? ctx->input_pads : ctx->output_pads; \
769 int nb_pads = in ? ctx->input_count : ctx->output_count; \
772 if (avio_open_dyn_buf(&pb) < 0) \
775 avio_printf(pb, "%s", ctx->filter->name); \
777 avio_printf(pb, ":%s", avfilter_pad_get_name(pads, inout->pad_idx));\
779 avio_close_dyn_buf(pb, &f->name); \
782 static int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
784 av_freep(&ofilter->name);
785 DESCRIBE_FILTER_LINK(ofilter, out, 0);
787 switch (avfilter_pad_get_type(out->filter_ctx->output_pads, out->pad_idx)) {
788 case AVMEDIA_TYPE_VIDEO: return configure_output_video_filter(fg, ofilter, out);
789 case AVMEDIA_TYPE_AUDIO: return configure_output_audio_filter(fg, ofilter, out);
790 default: av_assert0(0);
794 static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
797 AVFilterContext *first_filter = in->filter_ctx;
798 AVFilter *filter = avfilter_get_by_name("buffer");
799 InputStream *ist = ifilter->ist;
800 AVRational tb = ist->framerate.num ? av_inv_q(ist->framerate) :
803 char args[255], name[255];
804 int pad_idx = in->pad_idx;
807 sar = ist->st->sample_aspect_ratio.num ?
808 ist->st->sample_aspect_ratio :
809 ist->st->codec->sample_aspect_ratio;
810 snprintf(args, sizeof(args), "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
811 ist->st->codec->height, ist->st->codec->pix_fmt,
812 tb.num, tb.den, sar.num, sar.den);
813 snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
814 ist->file_index, ist->st->index);
816 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter, name,
817 args, NULL, fg->graph)) < 0)
820 if (ist->framerate.num) {
821 AVFilterContext *setpts;
823 snprintf(name, sizeof(name), "force CFR for input from stream %d:%d",
824 ist->file_index, ist->st->index);
825 if ((ret = avfilter_graph_create_filter(&setpts,
826 avfilter_get_by_name("setpts"),
831 if ((ret = avfilter_link(setpts, 0, first_filter, pad_idx)) < 0)
834 first_filter = setpts;
838 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
843 static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
846 AVFilterContext *first_filter = in->filter_ctx;
847 AVFilter *filter = avfilter_get_by_name("abuffer");
848 InputStream *ist = ifilter->ist;
849 int pad_idx = in->pad_idx;
850 char args[255], name[255];
853 snprintf(args, sizeof(args), "time_base=%d/%d:sample_rate=%d:sample_fmt=%s"
854 ":channel_layout=0x%"PRIx64,
855 1, ist->st->codec->sample_rate,
856 ist->st->codec->sample_rate,
857 av_get_sample_fmt_name(ist->st->codec->sample_fmt),
858 ist->st->codec->channel_layout);
859 snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
860 ist->file_index, ist->st->index);
862 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter,
867 if (audio_sync_method > 0) {
868 AVFilterContext *async;
872 av_log(NULL, AV_LOG_WARNING, "-async has been deprecated. Used the "
873 "asyncts audio filter instead.\n");
875 if (audio_sync_method > 1)
876 len += snprintf(args + len, sizeof(args) - len, "compensate=1:"
877 "max_comp=%d:", audio_sync_method);
878 snprintf(args + len, sizeof(args) - len, "min_delta=%f",
879 audio_drift_threshold);
881 snprintf(name, sizeof(name), "graph %d audio sync for input stream %d:%d",
882 fg->index, ist->file_index, ist->st->index);
883 ret = avfilter_graph_create_filter(&async,
884 avfilter_get_by_name("asyncts"),
885 name, args, NULL, fg->graph);
889 ret = avfilter_link(async, 0, first_filter, pad_idx);
893 first_filter = async;
896 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
902 static int configure_input_filter(FilterGraph *fg, InputFilter *ifilter,
905 av_freep(&ifilter->name);
906 DESCRIBE_FILTER_LINK(ifilter, in, 1);
908 switch (avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx)) {
909 case AVMEDIA_TYPE_VIDEO: return configure_input_video_filter(fg, ifilter, in);
910 case AVMEDIA_TYPE_AUDIO: return configure_input_audio_filter(fg, ifilter, in);
911 default: av_assert0(0);
915 static int configure_filtergraph(FilterGraph *fg)
917 AVFilterInOut *inputs, *outputs, *cur;
918 int ret, i, init = !fg->graph, simple = !fg->graph_desc;
919 const char *graph_desc = simple ? fg->outputs[0]->ost->avfilter :
922 avfilter_graph_free(&fg->graph);
923 if (!(fg->graph = avfilter_graph_alloc()))
924 return AVERROR(ENOMEM);
927 OutputStream *ost = fg->outputs[0]->ost;
929 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
930 fg->graph->scale_sws_opts = av_strdup(args);
933 if ((ret = avfilter_graph_parse2(fg->graph, graph_desc, &inputs, &outputs)) < 0)
936 if (simple && (!inputs || inputs->next || !outputs || outputs->next)) {
937 av_log(NULL, AV_LOG_ERROR, "Simple filtergraph '%s' does not have "
938 "exactly one input and output.\n", graph_desc);
939 return AVERROR(EINVAL);
942 for (cur = inputs; !simple && init && cur; cur = cur->next)
943 init_input_filter(fg, cur);
945 for (cur = inputs, i = 0; cur; cur = cur->next, i++)
946 if ((ret = configure_input_filter(fg, fg->inputs[i], cur)) < 0)
948 avfilter_inout_free(&inputs);
950 if (!init || simple) {
951 /* we already know the mappings between lavfi outputs and output streams,
952 * so we can finish the setup */
953 for (cur = outputs, i = 0; cur; cur = cur->next, i++)
954 configure_output_filter(fg, fg->outputs[i], cur);
955 avfilter_inout_free(&outputs);
957 if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
960 /* wait until output mappings are processed */
961 for (cur = outputs; cur;) {
962 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs),
963 &fg->nb_outputs, fg->nb_outputs + 1);
964 if (!(fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]))))
966 fg->outputs[fg->nb_outputs - 1]->graph = fg;
967 fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
969 fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
976 static int configure_complex_filters(void)
980 for (i = 0; i < nb_filtergraphs; i++)
981 if (!filtergraphs[i]->graph &&
982 (ret = configure_filtergraph(filtergraphs[i])) < 0)
987 static int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
990 for (i = 0; i < fg->nb_inputs; i++)
991 if (fg->inputs[i]->ist == ist)
996 static void term_exit(void)
998 av_log(NULL, AV_LOG_QUIET, "");
1001 static volatile int received_sigterm = 0;
1002 static volatile int received_nb_signals = 0;
1005 sigterm_handler(int sig)
1007 received_sigterm = sig;
1008 received_nb_signals++;
1012 static void term_init(void)
1014 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
1015 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
1017 signal(SIGXCPU, sigterm_handler);
1021 static int decode_interrupt_cb(void *ctx)
1023 return received_nb_signals > 1;
1026 static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
1028 void exit_program(int ret)
1032 for (i = 0; i < nb_filtergraphs; i++) {
1033 avfilter_graph_free(&filtergraphs[i]->graph);
1034 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
1035 av_freep(&filtergraphs[i]->inputs[j]->name);
1036 av_freep(&filtergraphs[i]->inputs[j]);
1038 av_freep(&filtergraphs[i]->inputs);
1039 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
1040 av_freep(&filtergraphs[i]->outputs[j]->name);
1041 av_freep(&filtergraphs[i]->outputs[j]);
1043 av_freep(&filtergraphs[i]->outputs);
1044 av_freep(&filtergraphs[i]);
1046 av_freep(&filtergraphs);
1049 for (i = 0; i < nb_output_files; i++) {
1050 AVFormatContext *s = output_files[i]->ctx;
1051 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
1053 avformat_free_context(s);
1054 av_dict_free(&output_files[i]->opts);
1055 av_freep(&output_files[i]);
1057 for (i = 0; i < nb_output_streams; i++) {
1058 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
1060 AVBitStreamFilterContext *next = bsfc->next;
1061 av_bitstream_filter_close(bsfc);
1064 output_streams[i]->bitstream_filters = NULL;
1066 av_freep(&output_streams[i]->forced_keyframes);
1067 av_freep(&output_streams[i]->avfilter);
1068 av_freep(&output_streams[i]->filtered_frame);
1069 av_freep(&output_streams[i]);
1071 for (i = 0; i < nb_input_files; i++) {
1072 avformat_close_input(&input_files[i]->ctx);
1073 av_freep(&input_files[i]);
1075 for (i = 0; i < nb_input_streams; i++) {
1076 av_freep(&input_streams[i]->decoded_frame);
1077 av_dict_free(&input_streams[i]->opts);
1078 free_buffer_pool(&input_streams[i]->buffer_pool);
1079 av_freep(&input_streams[i]->filters);
1080 av_freep(&input_streams[i]);
1084 fclose(vstats_file);
1085 av_free(vstats_filename);
1087 av_freep(&input_streams);
1088 av_freep(&input_files);
1089 av_freep(&output_streams);
1090 av_freep(&output_files);
1095 avformat_network_deinit();
1097 if (received_sigterm) {
1098 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
1099 (int) received_sigterm);
1106 static void assert_avoptions(AVDictionary *m)
1108 AVDictionaryEntry *t;
1109 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
1110 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
1115 static void assert_codec_experimental(AVCodecContext *c, int encoder)
1117 const char *codec_string = encoder ? "encoder" : "decoder";
1119 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
1120 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1121 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
1122 "results.\nAdd '-strict experimental' if you want to use it.\n",
1123 codec_string, c->codec->name);
1124 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
1125 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
1126 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
1127 codec_string, codec->name);
1133 * Update the requested input sample format based on the output sample format.
1134 * This is currently only used to request float output from decoders which
1135 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
1136 * Ideally this will be removed in the future when decoders do not do format
1137 * conversion and only output in their native format.
1139 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
1140 AVCodecContext *enc)
1142 /* if sample formats match or a decoder sample format has already been
1143 requested, just return */
1144 if (enc->sample_fmt == dec->sample_fmt ||
1145 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
1148 /* if decoder supports more than one output format */
1149 if (dec_codec && dec_codec->sample_fmts &&
1150 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
1151 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
1152 const enum AVSampleFormat *p;
1153 int min_dec = -1, min_inc = -1;
1155 /* find a matching sample format in the encoder */
1156 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
1157 if (*p == enc->sample_fmt) {
1158 dec->request_sample_fmt = *p;
1160 } else if (*p > enc->sample_fmt) {
1161 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
1163 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
1166 /* if none match, provide the one that matches quality closest */
1167 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
1168 enc->sample_fmt - min_dec;
1172 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
1174 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
1175 AVCodecContext *avctx = ost->st->codec;
1179 * Audio encoders may split the packets -- #frames in != #packets out.
1180 * But there is no reordering, so we can limit the number of output packets
1181 * by simply dropping them here.
1182 * Counting encoded video frames needs to be done separately because of
1183 * reordering, see do_video_out()
1185 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
1186 if (ost->frame_number >= ost->max_frames) {
1187 av_free_packet(pkt);
1190 ost->frame_number++;
1194 AVPacket new_pkt = *pkt;
1195 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
1196 &new_pkt.data, &new_pkt.size,
1197 pkt->data, pkt->size,
1198 pkt->flags & AV_PKT_FLAG_KEY);
1200 av_free_packet(pkt);
1201 new_pkt.destruct = av_destruct_packet;
1203 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
1204 bsfc->filter->name, pkt->stream_index,
1205 avctx->codec ? avctx->codec->name : "copy");
1215 pkt->stream_index = ost->index;
1216 ret = av_interleaved_write_frame(s, pkt);
1218 print_error("av_interleaved_write_frame()", ret);
1223 static int check_recording_time(OutputStream *ost)
1225 OutputFile *of = output_files[ost->file_index];
1227 if (of->recording_time != INT64_MAX &&
1228 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
1229 AV_TIME_BASE_Q) >= 0) {
1230 ost->is_past_recording_time = 1;
1236 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
1239 AVCodecContext *enc = ost->st->codec;
1243 av_init_packet(&pkt);
1247 if (!check_recording_time(ost))
1250 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
1251 frame->pts = ost->sync_opts;
1252 ost->sync_opts = frame->pts + frame->nb_samples;
1254 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
1255 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1260 if (pkt.pts != AV_NOPTS_VALUE)
1261 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1262 if (pkt.dts != AV_NOPTS_VALUE)
1263 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1264 if (pkt.duration > 0)
1265 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1267 write_frame(s, &pkt, ost);
1269 audio_size += pkt.size;
1273 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1275 AVCodecContext *dec;
1276 AVPicture *picture2;
1277 AVPicture picture_tmp;
1280 dec = ist->st->codec;
1282 /* deinterlace : must be done before any resize */
1283 if (do_deinterlace) {
1286 /* create temporary picture */
1287 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1288 buf = av_malloc(size);
1292 picture2 = &picture_tmp;
1293 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1295 if (avpicture_deinterlace(picture2, picture,
1296 dec->pix_fmt, dec->width, dec->height) < 0) {
1297 /* if error, do not deinterlace */
1298 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
1307 if (picture != picture2)
1308 *picture = *picture2;
1312 static void do_subtitle_out(AVFormatContext *s,
1318 static uint8_t *subtitle_out = NULL;
1319 int subtitle_out_max_size = 1024 * 1024;
1320 int subtitle_out_size, nb, i;
1321 AVCodecContext *enc;
1324 if (pts == AV_NOPTS_VALUE) {
1325 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1331 enc = ost->st->codec;
1333 if (!subtitle_out) {
1334 subtitle_out = av_malloc(subtitle_out_max_size);
1337 /* Note: DVB subtitle need one packet to draw them and one other
1338 packet to clear them */
1339 /* XXX: signal it in the codec context ? */
1340 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1345 for (i = 0; i < nb; i++) {
1346 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
1347 if (!check_recording_time(ost))
1350 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1351 // start_display_time is required to be 0
1352 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1353 sub->end_display_time -= sub->start_display_time;
1354 sub->start_display_time = 0;
1355 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1356 subtitle_out_max_size, sub);
1357 if (subtitle_out_size < 0) {
1358 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1362 av_init_packet(&pkt);
1363 pkt.data = subtitle_out;
1364 pkt.size = subtitle_out_size;
1365 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1366 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1367 /* XXX: the pts correction is handled here. Maybe handling
1368 it in the codec would be better */
1370 pkt.pts += 90 * sub->start_display_time;
1372 pkt.pts += 90 * sub->end_display_time;
1374 write_frame(s, &pkt, ost);
1378 static void do_video_out(AVFormatContext *s,
1380 AVFrame *in_picture,
1381 int *frame_size, float quality)
1383 int ret, format_video_sync;
1385 AVCodecContext *enc = ost->st->codec;
1389 format_video_sync = video_sync_method;
1390 if (format_video_sync == VSYNC_AUTO)
1391 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
1392 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
1393 if (format_video_sync != VSYNC_PASSTHROUGH &&
1394 ost->frame_number &&
1395 in_picture->pts != AV_NOPTS_VALUE &&
1396 in_picture->pts < ost->sync_opts) {
1398 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1402 if (in_picture->pts == AV_NOPTS_VALUE)
1403 in_picture->pts = ost->sync_opts;
1404 ost->sync_opts = in_picture->pts;
1407 if (!ost->frame_number)
1408 ost->first_pts = in_picture->pts;
1410 av_init_packet(&pkt);
1414 if (!check_recording_time(ost) ||
1415 ost->frame_number >= ost->max_frames)
1418 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1419 enc->codec->id == CODEC_ID_RAWVIDEO) {
1420 /* raw pictures are written as AVPicture structure to
1421 avoid any copies. We support temporarily the older
1423 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1424 enc->coded_frame->top_field_first = in_picture->top_field_first;
1425 pkt.data = (uint8_t *)in_picture;
1426 pkt.size = sizeof(AVPicture);
1427 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
1428 pkt.flags |= AV_PKT_FLAG_KEY;
1430 write_frame(s, &pkt, ost);
1433 AVFrame big_picture;
1435 big_picture = *in_picture;
1436 /* better than nothing: use input picture interlaced
1438 big_picture.interlaced_frame = in_picture->interlaced_frame;
1439 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1440 if (ost->top_field_first == -1)
1441 big_picture.top_field_first = in_picture->top_field_first;
1443 big_picture.top_field_first = !!ost->top_field_first;
1446 /* handles same_quant here. This is not correct because it may
1447 not be a global option */
1448 big_picture.quality = quality;
1449 if (!enc->me_threshold)
1450 big_picture.pict_type = 0;
1451 if (ost->forced_kf_index < ost->forced_kf_count &&
1452 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1453 big_picture.pict_type = AV_PICTURE_TYPE_I;
1454 ost->forced_kf_index++;
1456 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
1458 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1463 if (pkt.pts != AV_NOPTS_VALUE)
1464 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1465 if (pkt.dts != AV_NOPTS_VALUE)
1466 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1468 write_frame(s, &pkt, ost);
1469 *frame_size = pkt.size;
1470 video_size += pkt.size;
1472 /* if two pass, output log */
1473 if (ost->logfile && enc->stats_out) {
1474 fprintf(ost->logfile, "%s", enc->stats_out);
1480 * For video, number of frames in == number of packets out.
1481 * But there may be reordering, so we can't throw away frames on encoder
1482 * flush, we need to limit them here, before they go into encoder.
1484 ost->frame_number++;
1487 static double psnr(double d)
1489 return -10.0 * log(d) / log(10.0);
1492 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1495 AVCodecContext *enc;
1497 double ti1, bitrate, avg_bitrate;
1499 /* this is executed just the first time do_video_stats is called */
1501 vstats_file = fopen(vstats_filename, "w");
1508 enc = ost->st->codec;
1509 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1510 frame_number = ost->frame_number;
1511 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1512 if (enc->flags&CODEC_FLAG_PSNR)
1513 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1515 fprintf(vstats_file,"f_size= %6d ", frame_size);
1516 /* compute pts value */
1517 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1521 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1522 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1523 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1524 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1525 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1529 /* check for new output on any of the filtergraphs */
1530 static int poll_filters(void)
1532 AVFilterBufferRef *picref;
1533 AVFrame *filtered_frame = NULL;
1536 for (i = 0; i < nb_output_streams; i++) {
1537 OutputStream *ost = output_streams[i];
1538 OutputFile *of = output_files[ost->file_index];
1544 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1545 return AVERROR(ENOMEM);
1547 avcodec_get_frame_defaults(ost->filtered_frame);
1548 filtered_frame = ost->filtered_frame;
1550 while (ret >= 0 && !ost->is_past_recording_time) {
1551 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1552 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1553 ret = av_buffersink_read_samples(ost->filter->filter, &picref,
1554 ost->st->codec->frame_size);
1556 ret = av_buffersink_read(ost->filter->filter, &picref);
1558 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
1563 avfilter_copy_buf_props(filtered_frame, picref);
1564 if (picref->pts != AV_NOPTS_VALUE) {
1565 filtered_frame->pts = av_rescale_q(picref->pts,
1566 ost->filter->filter->inputs[0]->time_base,
1567 ost->st->codec->time_base) -
1568 av_rescale_q(of->start_time,
1570 ost->st->codec->time_base);
1572 if (of->start_time && filtered_frame->pts < 0) {
1573 avfilter_unref_buffer(picref);
1578 switch (ost->filter->filter->inputs[0]->type) {
1579 case AVMEDIA_TYPE_VIDEO:
1580 if (!ost->frame_aspect_ratio)
1581 ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect;
1583 do_video_out(of->ctx, ost, filtered_frame, &frame_size,
1584 same_quant ? ost->last_quality :
1585 ost->st->codec->global_quality);
1586 if (vstats_filename && frame_size)
1587 do_video_stats(of->ctx, ost, frame_size);
1589 case AVMEDIA_TYPE_AUDIO:
1590 do_audio_out(of->ctx, ost, filtered_frame);
1593 // TODO support subtitle filters
1597 avfilter_unref_buffer(picref);
1603 static void print_report(int is_last_report, int64_t timer_start)
1607 AVFormatContext *oc;
1609 AVCodecContext *enc;
1610 int frame_number, vid, i;
1611 double bitrate, ti1, pts;
1612 static int64_t last_time = -1;
1613 static int qp_histogram[52];
1615 if (!print_stats && !is_last_report)
1618 if (!is_last_report) {
1620 /* display the report every 0.5 seconds */
1621 cur_time = av_gettime();
1622 if (last_time == -1) {
1623 last_time = cur_time;
1626 if ((cur_time - last_time) < 500000)
1628 last_time = cur_time;
1632 oc = output_files[0]->ctx;
1634 total_size = avio_size(oc->pb);
1635 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
1636 total_size = avio_tell(oc->pb);
1641 for (i = 0; i < nb_output_streams; i++) {
1643 ost = output_streams[i];
1644 enc = ost->st->codec;
1645 if (!ost->stream_copy && enc->coded_frame)
1646 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1647 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1648 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1650 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1651 float t = (av_gettime() - timer_start) / 1000000.0;
1653 frame_number = ost->frame_number;
1654 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1655 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
1657 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1661 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1663 for (j = 0; j < 32; j++)
1664 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
1666 if (enc->flags&CODEC_FLAG_PSNR) {
1668 double error, error_sum = 0;
1669 double scale, scale_sum = 0;
1670 char type[3] = { 'Y','U','V' };
1671 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1672 for (j = 0; j < 3; j++) {
1673 if (is_last_report) {
1674 error = enc->error[j];
1675 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1677 error = enc->coded_frame->error[j];
1678 scale = enc->width * enc->height * 255.0 * 255.0;
1684 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
1686 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1690 /* compute min output value */
1691 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1692 if ((pts < ti1) && (pts > 0))
1698 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1700 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1701 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1702 (double)total_size / 1024, ti1, bitrate);
1704 if (nb_frames_dup || nb_frames_drop)
1705 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1706 nb_frames_dup, nb_frames_drop);
1708 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1712 if (is_last_report) {
1713 int64_t raw= audio_size + video_size + extra_size;
1714 av_log(NULL, AV_LOG_INFO, "\n");
1715 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1716 video_size / 1024.0,
1717 audio_size / 1024.0,
1718 extra_size / 1024.0,
1719 100.0 * (total_size - raw) / raw
1724 static void flush_encoders(void)
1728 for (i = 0; i < nb_output_streams; i++) {
1729 OutputStream *ost = output_streams[i];
1730 AVCodecContext *enc = ost->st->codec;
1731 AVFormatContext *os = output_files[ost->file_index]->ctx;
1732 int stop_encoding = 0;
1734 if (!ost->encoding_needed)
1737 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1739 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
1743 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1747 switch (ost->st->codec->codec_type) {
1748 case AVMEDIA_TYPE_AUDIO:
1749 encode = avcodec_encode_audio2;
1753 case AVMEDIA_TYPE_VIDEO:
1754 encode = avcodec_encode_video2;
1765 av_init_packet(&pkt);
1769 ret = encode(enc, &pkt, NULL, &got_packet);
1771 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1775 if (ost->logfile && enc->stats_out) {
1776 fprintf(ost->logfile, "%s", enc->stats_out);
1782 if (pkt.pts != AV_NOPTS_VALUE)
1783 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1784 if (pkt.dts != AV_NOPTS_VALUE)
1785 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1786 write_frame(os, &pkt, ost);
1796 * Check whether a packet from ist should be written into ost at this time
1798 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1800 OutputFile *of = output_files[ost->file_index];
1801 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1803 if (ost->source_index != ist_index)
1806 if (of->start_time && ist->last_dts < of->start_time)
1812 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1814 OutputFile *of = output_files[ost->file_index];
1815 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1818 av_init_packet(&opkt);
1820 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1821 !ost->copy_initial_nonkeyframes)
1824 if (of->recording_time != INT64_MAX &&
1825 ist->last_dts >= of->recording_time + of->start_time) {
1826 ost->is_past_recording_time = 1;
1830 /* force the input stream PTS */
1831 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1832 audio_size += pkt->size;
1833 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1834 video_size += pkt->size;
1838 if (pkt->pts != AV_NOPTS_VALUE)
1839 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1841 opkt.pts = AV_NOPTS_VALUE;
1843 if (pkt->dts == AV_NOPTS_VALUE)
1844 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1846 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1847 opkt.dts -= ost_tb_start_time;
1849 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1850 opkt.flags = pkt->flags;
1852 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1853 if ( ost->st->codec->codec_id != CODEC_ID_H264
1854 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1855 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1856 && ost->st->codec->codec_id != CODEC_ID_VC1
1858 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1859 opkt.destruct = av_destruct_packet;
1861 opkt.data = pkt->data;
1862 opkt.size = pkt->size;
1865 write_frame(of->ctx, &opkt, ost);
1866 ost->st->codec->frame_number++;
1867 av_free_packet(&opkt);
1870 static void rate_emu_sleep(InputStream *ist)
1872 if (input_files[ist->file_index]->rate_emu) {
1873 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
1874 int64_t now = av_gettime() - ist->start;
1876 av_usleep(pts - now);
1880 static int guess_input_channel_layout(InputStream *ist)
1882 AVCodecContext *dec = ist->st->codec;
1884 if (!dec->channel_layout) {
1885 char layout_name[256];
1887 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1888 if (!dec->channel_layout)
1890 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1891 dec->channels, dec->channel_layout);
1892 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1893 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1898 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1900 AVFrame *decoded_frame;
1901 AVCodecContext *avctx = ist->st->codec;
1902 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1903 int i, ret, resample_changed;
1905 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1906 return AVERROR(ENOMEM);
1908 avcodec_get_frame_defaults(ist->decoded_frame);
1909 decoded_frame = ist->decoded_frame;
1911 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1917 /* no audio frame */
1919 for (i = 0; i < ist->nb_filters; i++)
1920 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
1924 /* if the decoder provides a pts, use it instead of the last packet pts.
1925 the decoder could be delaying output by a packet or more. */
1926 if (decoded_frame->pts != AV_NOPTS_VALUE)
1927 ist->next_dts = decoded_frame->pts;
1928 else if (pkt->pts != AV_NOPTS_VALUE) {
1929 decoded_frame->pts = pkt->pts;
1930 pkt->pts = AV_NOPTS_VALUE;
1933 // preprocess audio (volume)
1934 if (audio_volume != 256) {
1935 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1936 void *samples = decoded_frame->data[0];
1937 switch (avctx->sample_fmt) {
1938 case AV_SAMPLE_FMT_U8:
1940 uint8_t *volp = samples;
1941 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1942 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1943 *volp++ = av_clip_uint8(v);
1947 case AV_SAMPLE_FMT_S16:
1949 int16_t *volp = samples;
1950 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1951 int v = ((*volp) * audio_volume + 128) >> 8;
1952 *volp++ = av_clip_int16(v);
1956 case AV_SAMPLE_FMT_S32:
1958 int32_t *volp = samples;
1959 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1960 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1961 *volp++ = av_clipl_int32(v);
1965 case AV_SAMPLE_FMT_FLT:
1967 float *volp = samples;
1968 float scale = audio_volume / 256.f;
1969 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1974 case AV_SAMPLE_FMT_DBL:
1976 double *volp = samples;
1977 double scale = audio_volume / 256.;
1978 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1984 av_log(NULL, AV_LOG_FATAL,
1985 "Audio volume adjustment on sample format %s is not supported.\n",
1986 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1991 rate_emu_sleep(ist);
1993 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1994 ist->resample_channels != avctx->channels ||
1995 ist->resample_channel_layout != decoded_frame->channel_layout ||
1996 ist->resample_sample_rate != decoded_frame->sample_rate;
1997 if (resample_changed) {
1998 char layout1[64], layout2[64];
2000 if (!guess_input_channel_layout(ist)) {
2001 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
2002 "layout for Input Stream #%d.%d\n", ist->file_index,
2006 decoded_frame->channel_layout = avctx->channel_layout;
2008 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
2009 ist->resample_channel_layout);
2010 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
2011 decoded_frame->channel_layout);
2013 av_log(NULL, AV_LOG_INFO,
2014 "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d chl:%s to rate:%d fmt:%s ch:%d chl:%s\n",
2015 ist->file_index, ist->st->index,
2016 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
2017 ist->resample_channels, layout1,
2018 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
2019 avctx->channels, layout2);
2021 ist->resample_sample_fmt = decoded_frame->format;
2022 ist->resample_sample_rate = decoded_frame->sample_rate;
2023 ist->resample_channel_layout = decoded_frame->channel_layout;
2024 ist->resample_channels = avctx->channels;
2026 for (i = 0; i < nb_filtergraphs; i++)
2027 if (ist_in_filtergraph(filtergraphs[i], ist) &&
2028 configure_filtergraph(filtergraphs[i]) < 0) {
2029 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2034 if (decoded_frame->pts != AV_NOPTS_VALUE)
2035 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
2037 (AVRational){1, ist->st->codec->sample_rate});
2038 for (i = 0; i < ist->nb_filters; i++)
2039 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
2044 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
2046 AVFrame *decoded_frame;
2047 void *buffer_to_free = NULL;
2048 int i, ret = 0, resample_changed;
2051 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
2052 return AVERROR(ENOMEM);
2054 avcodec_get_frame_defaults(ist->decoded_frame);
2055 decoded_frame = ist->decoded_frame;
2057 ret = avcodec_decode_video2(ist->st->codec,
2058 decoded_frame, got_output, pkt);
2062 quality = same_quant ? decoded_frame->quality : 0;
2064 /* no picture yet */
2066 for (i = 0; i < ist->nb_filters; i++)
2067 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
2070 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
2071 decoded_frame->pkt_dts);
2073 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
2075 rate_emu_sleep(ist);
2077 if (ist->st->sample_aspect_ratio.num)
2078 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
2080 resample_changed = ist->resample_width != decoded_frame->width ||
2081 ist->resample_height != decoded_frame->height ||
2082 ist->resample_pix_fmt != decoded_frame->format;
2083 if (resample_changed) {
2084 av_log(NULL, AV_LOG_INFO,
2085 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
2086 ist->file_index, ist->st->index,
2087 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
2088 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
2090 ist->resample_width = decoded_frame->width;
2091 ist->resample_height = decoded_frame->height;
2092 ist->resample_pix_fmt = decoded_frame->format;
2094 for (i = 0; i < nb_filtergraphs; i++)
2095 if (ist_in_filtergraph(filtergraphs[i], ist) &&
2096 configure_filtergraph(filtergraphs[i]) < 0) {
2097 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2102 for (i = 0; i < ist->nb_filters; i++) {
2103 // XXX what an ugly hack
2104 if (ist->filters[i]->graph->nb_outputs == 1)
2105 ist->filters[i]->graph->outputs[0]->ost->last_quality = quality;
2107 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
2108 FrameBuffer *buf = decoded_frame->opaque;
2109 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
2110 decoded_frame->data, decoded_frame->linesize,
2111 AV_PERM_READ | AV_PERM_PRESERVE,
2112 ist->st->codec->width, ist->st->codec->height,
2113 ist->st->codec->pix_fmt);
2115 avfilter_copy_frame_props(fb, decoded_frame);
2116 fb->buf->priv = buf;
2117 fb->buf->free = filter_release_buffer;
2120 av_buffersrc_buffer(ist->filters[i]->filter, fb);
2122 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
2125 av_free(buffer_to_free);
2129 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
2131 AVSubtitle subtitle;
2132 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
2133 &subtitle, got_output, pkt);
2139 rate_emu_sleep(ist);
2141 for (i = 0; i < nb_output_streams; i++) {
2142 OutputStream *ost = output_streams[i];
2144 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2147 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
2150 avsubtitle_free(&subtitle);
2154 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2155 static int output_packet(InputStream *ist, const AVPacket *pkt)
2161 if (ist->next_dts == AV_NOPTS_VALUE)
2162 ist->next_dts = ist->last_dts;
2166 av_init_packet(&avpkt);
2174 if (pkt->dts != AV_NOPTS_VALUE)
2175 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2177 // while we have more to decode or while the decoder did output something on EOF
2178 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2182 ist->last_dts = ist->next_dts;
2184 if (avpkt.size && avpkt.size != pkt->size) {
2185 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2186 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2187 ist->showed_multi_packet_warning = 1;
2190 switch (ist->st->codec->codec_type) {
2191 case AVMEDIA_TYPE_AUDIO:
2192 ret = decode_audio (ist, &avpkt, &got_output);
2194 case AVMEDIA_TYPE_VIDEO:
2195 ret = decode_video (ist, &avpkt, &got_output);
2197 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
2198 else if (ist->st->avg_frame_rate.num)
2199 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
2201 else if (ist->st->codec->time_base.num != 0) {
2202 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
2203 ist->st->codec->ticks_per_frame;
2204 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
2207 case AVMEDIA_TYPE_SUBTITLE:
2208 ret = transcode_subtitles(ist, &avpkt, &got_output);
2216 // touch data and size only if not EOF
2226 /* handle stream copy */
2227 if (!ist->decoding_needed) {
2228 rate_emu_sleep(ist);
2229 ist->last_dts = ist->next_dts;
2230 switch (ist->st->codec->codec_type) {
2231 case AVMEDIA_TYPE_AUDIO:
2232 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2233 ist->st->codec->sample_rate;
2235 case AVMEDIA_TYPE_VIDEO:
2236 if (ist->st->codec->time_base.num != 0) {
2237 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
2238 ist->next_dts += ((int64_t)AV_TIME_BASE *
2239 ist->st->codec->time_base.num * ticks) /
2240 ist->st->codec->time_base.den;
2245 for (i = 0; pkt && i < nb_output_streams; i++) {
2246 OutputStream *ost = output_streams[i];
2248 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2251 do_streamcopy(ist, ost, pkt);
2257 static void print_sdp(void)
2261 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
2265 for (i = 0; i < nb_output_files; i++)
2266 avc[i] = output_files[i]->ctx;
2268 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
2269 printf("SDP:\n%s\n", sdp);
2274 static int init_input_stream(int ist_index, char *error, int error_len)
2277 InputStream *ist = input_streams[ist_index];
2278 if (ist->decoding_needed) {
2279 AVCodec *codec = ist->dec;
2281 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
2282 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2283 return AVERROR(EINVAL);
2286 /* update requested sample format for the decoder based on the
2287 corresponding encoder sample format */
2288 for (i = 0; i < nb_output_streams; i++) {
2289 OutputStream *ost = output_streams[i];
2290 if (ost->source_index == ist_index) {
2291 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2296 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
2297 ist->st->codec->get_buffer = codec_get_buffer;
2298 ist->st->codec->release_buffer = codec_release_buffer;
2299 ist->st->codec->opaque = &ist->buffer_pool;
2302 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2303 av_dict_set(&ist->opts, "threads", "auto", 0);
2304 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2305 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
2306 ist->file_index, ist->st->index);
2307 return AVERROR(EINVAL);
2309 assert_codec_experimental(ist->st->codec, 0);
2310 assert_avoptions(ist->opts);
2313 ist->last_dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
2314 ist->next_dts = AV_NOPTS_VALUE;
2315 init_pts_correction(&ist->pts_ctx);
2321 static InputStream *get_input_stream(OutputStream *ost)
2323 if (ost->source_index >= 0)
2324 return input_streams[ost->source_index];
2327 FilterGraph *fg = ost->filter->graph;
2330 for (i = 0; i < fg->nb_inputs; i++)
2331 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
2332 return fg->inputs[i]->ist;
2338 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2339 AVCodecContext *avctx)
2345 for (p = kf; *p; p++)
2348 ost->forced_kf_count = n;
2349 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
2350 if (!ost->forced_kf_pts) {
2351 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2356 for (i = 0; i < n; i++) {
2357 char *next = strchr(p, ',');
2362 t = parse_time_or_die("force_key_frames", p, 1);
2363 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2369 static int transcode_init(void)
2371 int ret = 0, i, j, k;
2372 AVFormatContext *oc;
2373 AVCodecContext *codec, *icodec;
2379 /* init framerate emulation */
2380 for (i = 0; i < nb_input_files; i++) {
2381 InputFile *ifile = input_files[i];
2382 if (ifile->rate_emu)
2383 for (j = 0; j < ifile->nb_streams; j++)
2384 input_streams[j + ifile->ist_index]->start = av_gettime();
2387 /* output stream init */
2388 for (i = 0; i < nb_output_files; i++) {
2389 oc = output_files[i]->ctx;
2390 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2391 av_dump_format(oc, i, oc->filename, 1);
2392 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2393 return AVERROR(EINVAL);
2397 /* init complex filtergraphs */
2398 for (i = 0; i < nb_filtergraphs; i++)
2399 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2402 /* for each output stream, we compute the right encoding parameters */
2403 for (i = 0; i < nb_output_streams; i++) {
2404 ost = output_streams[i];
2405 oc = output_files[ost->file_index]->ctx;
2406 ist = get_input_stream(ost);
2408 if (ost->attachment_filename)
2411 codec = ost->st->codec;
2414 icodec = ist->st->codec;
2416 ost->st->disposition = ist->st->disposition;
2417 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2418 codec->chroma_sample_location = icodec->chroma_sample_location;
2421 if (ost->stream_copy) {
2422 uint64_t extra_size;
2424 av_assert0(ist && !ost->filter);
2426 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2428 if (extra_size > INT_MAX) {
2429 return AVERROR(EINVAL);
2432 /* if stream_copy is selected, no need to decode or encode */
2433 codec->codec_id = icodec->codec_id;
2434 codec->codec_type = icodec->codec_type;
2436 if (!codec->codec_tag) {
2437 if (!oc->oformat->codec_tag ||
2438 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2439 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2440 codec->codec_tag = icodec->codec_tag;
2443 codec->bit_rate = icodec->bit_rate;
2444 codec->rc_max_rate = icodec->rc_max_rate;
2445 codec->rc_buffer_size = icodec->rc_buffer_size;
2446 codec->field_order = icodec->field_order;
2447 codec->extradata = av_mallocz(extra_size);
2448 if (!codec->extradata) {
2449 return AVERROR(ENOMEM);
2451 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2452 codec->extradata_size = icodec->extradata_size;
2454 codec->time_base = icodec->time_base;
2455 codec->time_base.num *= icodec->ticks_per_frame;
2456 av_reduce(&codec->time_base.num, &codec->time_base.den,
2457 codec->time_base.num, codec->time_base.den, INT_MAX);
2459 codec->time_base = ist->st->time_base;
2461 switch (codec->codec_type) {
2462 case AVMEDIA_TYPE_AUDIO:
2463 if (audio_volume != 256) {
2464 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2467 codec->channel_layout = icodec->channel_layout;
2468 codec->sample_rate = icodec->sample_rate;
2469 codec->channels = icodec->channels;
2470 codec->frame_size = icodec->frame_size;
2471 codec->audio_service_type = icodec->audio_service_type;
2472 codec->block_align = icodec->block_align;
2474 case AVMEDIA_TYPE_VIDEO:
2475 codec->pix_fmt = icodec->pix_fmt;
2476 codec->width = icodec->width;
2477 codec->height = icodec->height;
2478 codec->has_b_frames = icodec->has_b_frames;
2479 if (!codec->sample_aspect_ratio.num) {
2480 codec->sample_aspect_ratio =
2481 ost->st->sample_aspect_ratio =
2482 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2483 ist->st->codec->sample_aspect_ratio.num ?
2484 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2487 case AVMEDIA_TYPE_SUBTITLE:
2488 codec->width = icodec->width;
2489 codec->height = icodec->height;
2491 case AVMEDIA_TYPE_DATA:
2492 case AVMEDIA_TYPE_ATTACHMENT:
2499 /* should only happen when a default codec is not present. */
2500 snprintf(error, sizeof(error), "Automatic encoder selection "
2501 "failed for output stream #%d:%d. Default encoder for "
2502 "format %s is probably disabled. Please choose an "
2503 "encoder manually.\n", ost->file_index, ost->index,
2505 ret = AVERROR(EINVAL);
2510 ist->decoding_needed = 1;
2511 ost->encoding_needed = 1;
2514 * We want CFR output if and only if one of those is true:
2515 * 1) user specified output framerate with -r
2516 * 2) user specified -vsync cfr
2517 * 3) output format is CFR and the user didn't force vsync to
2518 * something else than CFR
2520 * in such a case, set ost->frame_rate
2522 if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
2523 !ost->frame_rate.num && ist &&
2524 (video_sync_method == VSYNC_CFR ||
2525 (video_sync_method == VSYNC_AUTO &&
2526 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
2527 ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2528 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2529 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2530 ost->frame_rate = ost->enc->supported_framerates[idx];
2535 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2536 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2538 fg = init_simple_filtergraph(ist, ost);
2539 if (configure_filtergraph(fg)) {
2540 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2545 switch (codec->codec_type) {
2546 case AVMEDIA_TYPE_AUDIO:
2547 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2548 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2549 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2550 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
2551 codec->time_base = (AVRational){ 1, codec->sample_rate };
2553 case AVMEDIA_TYPE_VIDEO:
2554 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2556 codec->width = ost->filter->filter->inputs[0]->w;
2557 codec->height = ost->filter->filter->inputs[0]->h;
2558 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2559 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2560 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2561 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2562 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2564 if (codec->width != icodec->width ||
2565 codec->height != icodec->height ||
2566 codec->pix_fmt != icodec->pix_fmt) {
2567 codec->bits_per_raw_sample = 0;
2570 if (ost->forced_keyframes)
2571 parse_forced_key_frames(ost->forced_keyframes, ost,
2574 case AVMEDIA_TYPE_SUBTITLE:
2575 codec->time_base = (AVRational){1, 1000};
2582 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2583 char logfilename[1024];
2586 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2587 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2589 if (!strcmp(ost->enc->name, "libx264")) {
2590 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2592 if (codec->flags & CODEC_FLAG_PASS1) {
2593 f = fopen(logfilename, "wb");
2595 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2596 logfilename, strerror(errno));
2602 size_t logbuffer_size;
2603 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2604 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2608 codec->stats_in = logbuffer;
2615 /* open each encoder */
2616 for (i = 0; i < nb_output_streams; i++) {
2617 ost = output_streams[i];
2618 if (ost->encoding_needed) {
2619 AVCodec *codec = ost->enc;
2620 AVCodecContext *dec = NULL;
2622 if ((ist = get_input_stream(ost)))
2623 dec = ist->st->codec;
2624 if (dec && dec->subtitle_header) {
2625 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2626 if (!ost->st->codec->subtitle_header) {
2627 ret = AVERROR(ENOMEM);
2630 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2631 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2633 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2634 av_dict_set(&ost->opts, "threads", "auto", 0);
2635 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2636 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2637 ost->file_index, ost->index);
2638 ret = AVERROR(EINVAL);
2641 assert_codec_experimental(ost->st->codec, 1);
2642 assert_avoptions(ost->opts);
2643 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2644 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2645 "It takes bits/s as argument, not kbits/s\n");
2646 extra_size += ost->st->codec->extradata_size;
2648 if (ost->st->codec->me_threshold)
2649 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2653 /* init input streams */
2654 for (i = 0; i < nb_input_streams; i++)
2655 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2658 /* discard unused programs */
2659 for (i = 0; i < nb_input_files; i++) {
2660 InputFile *ifile = input_files[i];
2661 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2662 AVProgram *p = ifile->ctx->programs[j];
2663 int discard = AVDISCARD_ALL;
2665 for (k = 0; k < p->nb_stream_indexes; k++)
2666 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2667 discard = AVDISCARD_DEFAULT;
2670 p->discard = discard;
2674 /* open files and write file headers */
2675 for (i = 0; i < nb_output_files; i++) {
2676 oc = output_files[i]->ctx;
2677 oc->interrupt_callback = int_cb;
2678 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2680 const char *errbuf_ptr = errbuf;
2681 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2682 errbuf_ptr = strerror(AVUNERROR(ret));
2683 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
2684 ret = AVERROR(EINVAL);
2687 assert_avoptions(output_files[i]->opts);
2688 if (strcmp(oc->oformat->name, "rtp")) {
2694 /* dump the file output parameters - cannot be done before in case
2696 for (i = 0; i < nb_output_files; i++) {
2697 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2700 /* dump the stream mapping */
2701 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2702 for (i = 0; i < nb_input_streams; i++) {
2703 ist = input_streams[i];
2705 for (j = 0; j < ist->nb_filters; j++) {
2706 if (ist->filters[j]->graph->graph_desc) {
2707 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2708 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2709 ist->filters[j]->name);
2710 if (nb_filtergraphs > 1)
2711 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2712 av_log(NULL, AV_LOG_INFO, "\n");
2717 for (i = 0; i < nb_output_streams; i++) {
2718 ost = output_streams[i];
2720 if (ost->attachment_filename) {
2721 /* an attached file */
2722 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2723 ost->attachment_filename, ost->file_index, ost->index);
2727 if (ost->filter && ost->filter->graph->graph_desc) {
2728 /* output from a complex graph */
2729 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2730 if (nb_filtergraphs > 1)
2731 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2733 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2734 ost->index, ost->enc ? ost->enc->name : "?");
2738 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2739 input_streams[ost->source_index]->file_index,
2740 input_streams[ost->source_index]->st->index,
2743 if (ost->sync_ist != input_streams[ost->source_index])
2744 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2745 ost->sync_ist->file_index,
2746 ost->sync_ist->st->index);
2747 if (ost->stream_copy)
2748 av_log(NULL, AV_LOG_INFO, " (copy)");
2750 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2751 input_streams[ost->source_index]->dec->name : "?",
2752 ost->enc ? ost->enc->name : "?");
2753 av_log(NULL, AV_LOG_INFO, "\n");
2757 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2769 * @return 1 if there are still streams where more output is wanted,
2772 static int need_output(void)
2776 for (i = 0; i < nb_output_streams; i++) {
2777 OutputStream *ost = output_streams[i];
2778 OutputFile *of = output_files[ost->file_index];
2779 AVFormatContext *os = output_files[ost->file_index]->ctx;
2781 if (ost->is_past_recording_time ||
2782 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2784 if (ost->frame_number >= ost->max_frames) {
2786 for (j = 0; j < of->ctx->nb_streams; j++)
2787 output_streams[of->ost_index + j]->is_past_recording_time = 1;
2797 static int select_input_file(uint8_t *no_packet)
2799 int64_t ipts_min = INT64_MAX;
2800 int i, file_index = -1;
2802 for (i = 0; i < nb_input_streams; i++) {
2803 InputStream *ist = input_streams[i];
2804 int64_t ipts = ist->last_dts;
2806 if (ist->discard || no_packet[ist->file_index])
2808 if (!input_files[ist->file_index]->eof_reached) {
2809 if (ipts < ipts_min) {
2811 file_index = ist->file_index;
2820 static void *input_thread(void *arg)
2825 while (!transcoding_finished && ret >= 0) {
2827 ret = av_read_frame(f->ctx, &pkt);
2829 if (ret == AVERROR(EAGAIN)) {
2836 pthread_mutex_lock(&f->fifo_lock);
2837 while (!av_fifo_space(f->fifo))
2838 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2840 av_dup_packet(&pkt);
2841 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2843 pthread_mutex_unlock(&f->fifo_lock);
2850 static void free_input_threads(void)
2854 if (nb_input_files == 1)
2857 transcoding_finished = 1;
2859 for (i = 0; i < nb_input_files; i++) {
2860 InputFile *f = input_files[i];
2863 if (!f->fifo || f->joined)
2866 pthread_mutex_lock(&f->fifo_lock);
2867 while (av_fifo_size(f->fifo)) {
2868 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2869 av_free_packet(&pkt);
2871 pthread_cond_signal(&f->fifo_cond);
2872 pthread_mutex_unlock(&f->fifo_lock);
2874 pthread_join(f->thread, NULL);
2877 while (av_fifo_size(f->fifo)) {
2878 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2879 av_free_packet(&pkt);
2881 av_fifo_free(f->fifo);
2885 static int init_input_threads(void)
2889 if (nb_input_files == 1)
2892 for (i = 0; i < nb_input_files; i++) {
2893 InputFile *f = input_files[i];
2895 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2896 return AVERROR(ENOMEM);
2898 pthread_mutex_init(&f->fifo_lock, NULL);
2899 pthread_cond_init (&f->fifo_cond, NULL);
2901 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2902 return AVERROR(ret);
2907 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2911 pthread_mutex_lock(&f->fifo_lock);
2913 if (av_fifo_size(f->fifo)) {
2914 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2915 pthread_cond_signal(&f->fifo_cond);
2920 ret = AVERROR(EAGAIN);
2923 pthread_mutex_unlock(&f->fifo_lock);
2929 static int get_input_packet(InputFile *f, AVPacket *pkt)
2932 if (nb_input_files > 1)
2933 return get_input_packet_mt(f, pkt);
2935 return av_read_frame(f->ctx, pkt);
2939 * The following code is the main loop of the file converter
2941 static int transcode(void)
2944 AVFormatContext *is, *os;
2948 int no_packet_count = 0;
2949 int64_t timer_start;
2951 if (!(no_packet = av_mallocz(nb_input_files)))
2954 ret = transcode_init();
2958 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2961 timer_start = av_gettime();
2964 if ((ret = init_input_threads()) < 0)
2968 for (; received_sigterm == 0;) {
2969 int file_index, ist_index;
2972 /* check if there's any stream where output is still needed */
2973 if (!need_output()) {
2974 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2978 /* select the stream that we must read now */
2979 file_index = select_input_file(no_packet);
2980 /* if none, if is finished */
2981 if (file_index < 0) {
2982 if (no_packet_count) {
2983 no_packet_count = 0;
2984 memset(no_packet, 0, nb_input_files);
2988 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
2992 is = input_files[file_index]->ctx;
2993 ret = get_input_packet(input_files[file_index], &pkt);
2995 if (ret == AVERROR(EAGAIN)) {
2996 no_packet[file_index] = 1;
3001 if (ret != AVERROR_EOF) {
3002 print_error(is->filename, ret);
3006 input_files[file_index]->eof_reached = 1;
3008 for (i = 0; i < input_files[file_index]->nb_streams; i++) {
3009 ist = input_streams[input_files[file_index]->ist_index + i];
3010 if (ist->decoding_needed)
3011 output_packet(ist, NULL);
3020 no_packet_count = 0;
3021 memset(no_packet, 0, nb_input_files);
3024 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
3025 is->streams[pkt.stream_index]);
3027 /* the following test is needed in case new streams appear
3028 dynamically in stream : we ignore them */
3029 if (pkt.stream_index >= input_files[file_index]->nb_streams)
3030 goto discard_packet;
3031 ist_index = input_files[file_index]->ist_index + pkt.stream_index;
3032 ist = input_streams[ist_index];
3034 goto discard_packet;
3036 if (pkt.dts != AV_NOPTS_VALUE)
3037 pkt.dts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3038 if (pkt.pts != AV_NOPTS_VALUE)
3039 pkt.pts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3041 if (pkt.pts != AV_NOPTS_VALUE)
3042 pkt.pts *= ist->ts_scale;
3043 if (pkt.dts != AV_NOPTS_VALUE)
3044 pkt.dts *= ist->ts_scale;
3046 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
3048 // pkt.dts, input_files[ist->file_index].ts_offset,
3049 // ist->st->codec->codec_type);
3050 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE
3051 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
3052 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3053 int64_t delta = pkt_dts - ist->next_dts;
3054 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
3055 input_files[ist->file_index]->ts_offset -= delta;
3056 av_log(NULL, AV_LOG_DEBUG,
3057 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3058 delta, input_files[ist->file_index]->ts_offset);
3059 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3060 if (pkt.pts != AV_NOPTS_VALUE)
3061 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3065 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
3066 if (output_packet(ist, &pkt) < 0 || poll_filters() < 0) {
3067 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
3068 ist->file_index, ist->st->index);
3071 av_free_packet(&pkt);
3076 av_free_packet(&pkt);
3078 /* dump report by using the output first video and audio streams */
3079 print_report(0, timer_start);
3082 free_input_threads();
3085 /* at the end of stream, we must flush the decoder buffers */
3086 for (i = 0; i < nb_input_streams; i++) {
3087 ist = input_streams[i];
3088 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3089 output_packet(ist, NULL);
3097 /* write the trailer if needed and close file */
3098 for (i = 0; i < nb_output_files; i++) {
3099 os = output_files[i]->ctx;
3100 av_write_trailer(os);
3103 /* dump report by using the first video and audio streams */
3104 print_report(1, timer_start);
3106 /* close each encoder */
3107 for (i = 0; i < nb_output_streams; i++) {
3108 ost = output_streams[i];
3109 if (ost->encoding_needed) {
3110 av_freep(&ost->st->codec->stats_in);
3111 avcodec_close(ost->st->codec);
3115 /* close each decoder */
3116 for (i = 0; i < nb_input_streams; i++) {
3117 ist = input_streams[i];
3118 if (ist->decoding_needed) {
3119 avcodec_close(ist->st->codec);
3127 av_freep(&no_packet);
3129 free_input_threads();
3132 if (output_streams) {
3133 for (i = 0; i < nb_output_streams; i++) {
3134 ost = output_streams[i];
3136 if (ost->stream_copy)
3137 av_freep(&ost->st->codec->extradata);
3139 fclose(ost->logfile);
3140 ost->logfile = NULL;
3142 av_freep(&ost->st->codec->subtitle_header);
3143 av_free(ost->forced_kf_pts);
3144 av_dict_free(&ost->opts);
3151 static double parse_frame_aspect_ratio(const char *arg)
3158 p = strchr(arg, ':');
3160 x = strtol(arg, &end, 10);
3162 y = strtol(end + 1, &end, 10);
3164 ar = (double)x / (double)y;
3166 ar = strtod(arg, NULL);
3169 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
3175 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
3177 return parse_option(o, "codec:a", arg, options);
3180 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
3182 return parse_option(o, "codec:v", arg, options);
3185 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
3187 return parse_option(o, "codec:s", arg, options);
3190 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
3192 return parse_option(o, "codec:d", arg, options);
3195 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
3197 StreamMap *m = NULL;
3198 int i, negative = 0, file_idx;
3199 int sync_file_idx = -1, sync_stream_idx;
3207 map = av_strdup(arg);
3209 /* parse sync stream first, just pick first matching stream */
3210 if (sync = strchr(map, ',')) {
3212 sync_file_idx = strtol(sync + 1, &sync, 0);
3213 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
3214 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
3219 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
3220 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
3221 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
3222 sync_stream_idx = i;
3225 if (i == input_files[sync_file_idx]->nb_streams) {
3226 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
3227 "match any streams.\n", arg);
3233 if (map[0] == '[') {
3234 /* this mapping refers to lavfi output */
3235 const char *c = map + 1;
3236 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
3237 &o->nb_stream_maps, o->nb_stream_maps + 1);
3238 m = &o->stream_maps[o->nb_stream_maps - 1];
3239 m->linklabel = av_get_token(&c, "]");
3240 if (!m->linklabel) {
3241 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
3245 file_idx = strtol(map, &p, 0);
3246 if (file_idx >= nb_input_files || file_idx < 0) {
3247 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
3251 /* disable some already defined maps */
3252 for (i = 0; i < o->nb_stream_maps; i++) {
3253 m = &o->stream_maps[i];
3254 if (file_idx == m->file_index &&
3255 check_stream_specifier(input_files[m->file_index]->ctx,
3256 input_files[m->file_index]->ctx->streams[m->stream_index],
3257 *p == ':' ? p + 1 : p) > 0)
3261 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
3262 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
3263 *p == ':' ? p + 1 : p) <= 0)
3265 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
3266 &o->nb_stream_maps, o->nb_stream_maps + 1);
3267 m = &o->stream_maps[o->nb_stream_maps - 1];
3269 m->file_index = file_idx;
3270 m->stream_index = i;
3272 if (sync_file_idx >= 0) {
3273 m->sync_file_index = sync_file_idx;
3274 m->sync_stream_index = sync_stream_idx;
3276 m->sync_file_index = file_idx;
3277 m->sync_stream_index = i;
3283 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
3291 static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
3293 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
3294 &o->nb_attachments, o->nb_attachments + 1);
3295 o->attachments[o->nb_attachments - 1] = arg;
3300 * Parse a metadata specifier in arg.
3301 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
3302 * @param index for type c/p, chapter/program index is written here
3303 * @param stream_spec for type s, the stream specifier is written here
3305 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
3313 if (*(++arg) && *arg != ':') {
3314 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
3317 *stream_spec = *arg == ':' ? arg + 1 : "";
3321 if (*(++arg) == ':')
3322 *index = strtol(++arg, NULL, 0);
3325 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
3332 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
3334 AVDictionary **meta_in = NULL;
3335 AVDictionary **meta_out;
3337 char type_in, type_out;
3338 const char *istream_spec = NULL, *ostream_spec = NULL;
3339 int idx_in = 0, idx_out = 0;
3341 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
3342 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
3344 if (type_in == 'g' || type_out == 'g')
3345 o->metadata_global_manual = 1;
3346 if (type_in == 's' || type_out == 's')
3347 o->metadata_streams_manual = 1;
3348 if (type_in == 'c' || type_out == 'c')
3349 o->metadata_chapters_manual = 1;
3351 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3352 if ((index) < 0 || (index) >= (nb_elems)) {\
3353 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
3358 #define SET_DICT(type, meta, context, index)\
3361 meta = &context->metadata;\
3364 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
3365 meta = &context->chapters[index]->metadata;\
3368 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
3369 meta = &context->programs[index]->metadata;\
3371 default: av_assert0(0);\
3374 SET_DICT(type_in, meta_in, ic, idx_in);
3375 SET_DICT(type_out, meta_out, oc, idx_out);
3377 /* for input streams choose first matching stream */
3378 if (type_in == 's') {
3379 for (i = 0; i < ic->nb_streams; i++) {
3380 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3381 meta_in = &ic->streams[i]->metadata;
3387 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3392 if (type_out == 's') {
3393 for (i = 0; i < oc->nb_streams; i++) {
3394 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3395 meta_out = &oc->streams[i]->metadata;
3396 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3401 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3406 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
3408 const char *codec_string = encoder ? "encoder" : "decoder";
3412 avcodec_find_encoder_by_name(name) :
3413 avcodec_find_decoder_by_name(name);
3415 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
3418 if (codec->type != type) {
3419 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
3425 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
3427 char *codec_name = NULL;
3429 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
3431 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3432 st->codec->codec_id = codec->id;
3435 return avcodec_find_decoder(st->codec->codec_id);
3439 * Add all the streams from the given input file to the global
3440 * list of input streams.
3442 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
3446 for (i = 0; i < ic->nb_streams; i++) {
3447 AVStream *st = ic->streams[i];
3448 AVCodecContext *dec = st->codec;
3449 InputStream *ist = av_mallocz(sizeof(*ist));
3450 char *framerate = NULL;
3455 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3456 input_streams[nb_input_streams - 1] = ist;
3459 ist->file_index = nb_input_files;
3461 st->discard = AVDISCARD_ALL;
3462 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st, NULL);
3464 ist->ts_scale = 1.0;
3465 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
3467 ist->dec = choose_decoder(o, ic, st);
3469 switch (dec->codec_type) {
3470 case AVMEDIA_TYPE_VIDEO:
3471 ist->resample_height = dec->height;
3472 ist->resample_width = dec->width;
3473 ist->resample_pix_fmt = dec->pix_fmt;
3475 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
3476 if (framerate && av_parse_video_rate(&ist->framerate,
3478 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
3484 case AVMEDIA_TYPE_AUDIO:
3485 guess_input_channel_layout(ist);
3487 ist->resample_sample_fmt = dec->sample_fmt;
3488 ist->resample_sample_rate = dec->sample_rate;
3489 ist->resample_channels = dec->channels;
3490 ist->resample_channel_layout = dec->channel_layout;
3493 case AVMEDIA_TYPE_DATA:
3494 case AVMEDIA_TYPE_SUBTITLE:
3495 case AVMEDIA_TYPE_ATTACHMENT:
3496 case AVMEDIA_TYPE_UNKNOWN:
3504 static void assert_file_overwrite(const char *filename)
3506 if (!file_overwrite &&
3507 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3508 av_strstart(filename, "file:", NULL))) {
3509 if (avio_check(filename, 0) == 0) {
3511 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3513 if (!read_yesno()) {
3514 fprintf(stderr, "Not overwriting - exiting\n");
3519 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3526 static void dump_attachment(AVStream *st, const char *filename)
3529 AVIOContext *out = NULL;
3530 AVDictionaryEntry *e;
3532 if (!st->codec->extradata_size) {
3533 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3534 nb_input_files - 1, st->index);
3537 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3538 filename = e->value;
3540 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3541 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3545 assert_file_overwrite(filename);
3547 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
3548 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3553 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3558 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
3560 AVFormatContext *ic;
3561 AVInputFormat *file_iformat = NULL;
3565 AVDictionary **opts;
3566 int orig_nb_streams; // number of streams before avformat_find_stream_info
3569 if (!(file_iformat = av_find_input_format(o->format))) {
3570 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
3575 if (!strcmp(filename, "-"))
3578 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3579 !strcmp(filename, "/dev/stdin");
3581 /* get default parameters from command line */
3582 ic = avformat_alloc_context();
3584 print_error(filename, AVERROR(ENOMEM));
3587 if (o->nb_audio_sample_rate) {
3588 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
3589 av_dict_set(&format_opts, "sample_rate", buf, 0);
3591 if (o->nb_audio_channels) {
3592 /* because we set audio_channels based on both the "ac" and
3593 * "channel_layout" options, we need to check that the specified
3594 * demuxer actually has the "channels" option before setting it */
3595 if (file_iformat && file_iformat->priv_class &&
3596 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
3597 AV_OPT_SEARCH_FAKE_OBJ)) {
3598 snprintf(buf, sizeof(buf), "%d",
3599 o->audio_channels[o->nb_audio_channels - 1].u.i);
3600 av_dict_set(&format_opts, "channels", buf, 0);
3603 if (o->nb_frame_rates) {
3604 /* set the format-level framerate option;
3605 * this is important for video grabbers, e.g. x11 */
3606 if (file_iformat && file_iformat->priv_class &&
3607 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
3608 AV_OPT_SEARCH_FAKE_OBJ)) {
3609 av_dict_set(&format_opts, "framerate",
3610 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
3613 if (o->nb_frame_sizes) {
3614 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
3616 if (o->nb_frame_pix_fmts)
3617 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
3619 ic->flags |= AVFMT_FLAG_NONBLOCK;
3620 ic->interrupt_callback = int_cb;
3622 /* open the input file with generic libav function */
3623 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3625 print_error(filename, err);
3628 assert_avoptions(format_opts);
3630 /* apply forced codec ids */
3631 for (i = 0; i < ic->nb_streams; i++)
3632 choose_decoder(o, ic, ic->streams[i]);
3634 /* Set AVCodecContext options for avformat_find_stream_info */
3635 opts = setup_find_stream_info_opts(ic, codec_opts);
3636 orig_nb_streams = ic->nb_streams;
3638 /* If not enough info to get the stream parameters, we decode the
3639 first frames to get it. (used in mpeg case for example) */
3640 ret = avformat_find_stream_info(ic, opts);
3642 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
3643 avformat_close_input(&ic);
3647 timestamp = o->start_time;
3648 /* add the stream start time */
3649 if (ic->start_time != AV_NOPTS_VALUE)
3650 timestamp += ic->start_time;
3652 /* if seeking requested, we execute it */
3653 if (o->start_time != 0) {
3654 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3656 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
3657 filename, (double)timestamp / AV_TIME_BASE);
3661 /* update the current parameters so that they match the one of the input stream */
3662 add_input_streams(o, ic);
3664 /* dump the file content */
3665 av_dump_format(ic, nb_input_files, filename, 0);
3667 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3668 if (!(input_files[nb_input_files - 1] = av_mallocz(sizeof(*input_files[0]))))
3671 input_files[nb_input_files - 1]->ctx = ic;
3672 input_files[nb_input_files - 1]->ist_index = nb_input_streams - ic->nb_streams;
3673 input_files[nb_input_files - 1]->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3674 input_files[nb_input_files - 1]->nb_streams = ic->nb_streams;
3675 input_files[nb_input_files - 1]->rate_emu = o->rate_emu;
3677 for (i = 0; i < o->nb_dump_attachment; i++) {
3680 for (j = 0; j < ic->nb_streams; j++) {
3681 AVStream *st = ic->streams[j];
3683 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3684 dump_attachment(st, o->dump_attachment[i].u.str);
3688 for (i = 0; i < orig_nb_streams; i++)
3689 av_dict_free(&opts[i]);
3696 static uint8_t *get_line(AVIOContext *s)