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 ? (AVRational){ist->framerate.den,
801 ist->framerate.num} :
804 char args[255], name[255];
805 int pad_idx = in->pad_idx;
808 sar = ist->st->sample_aspect_ratio.num ?
809 ist->st->sample_aspect_ratio :
810 ist->st->codec->sample_aspect_ratio;
811 snprintf(args, sizeof(args), "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
812 ist->st->codec->height, ist->st->codec->pix_fmt,
813 tb.num, tb.den, sar.num, sar.den);
814 snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
815 ist->file_index, ist->st->index);
817 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter, name,
818 args, NULL, fg->graph)) < 0)
821 if (ist->framerate.num) {
822 AVFilterContext *setpts;
824 snprintf(name, sizeof(name), "force CFR for input from stream %d:%d",
825 ist->file_index, ist->st->index);
826 if ((ret = avfilter_graph_create_filter(&setpts,
827 avfilter_get_by_name("setpts"),
832 if ((ret = avfilter_link(setpts, 0, first_filter, pad_idx)) < 0)
835 first_filter = setpts;
839 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
844 static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
847 AVFilterContext *first_filter = in->filter_ctx;
848 AVFilter *filter = avfilter_get_by_name("abuffer");
849 InputStream *ist = ifilter->ist;
850 int pad_idx = in->pad_idx;
851 char args[255], name[255];
854 snprintf(args, sizeof(args), "time_base=%d/%d:sample_rate=%d:sample_fmt=%s"
855 ":channel_layout=0x%"PRIx64,
856 1, ist->st->codec->sample_rate,
857 ist->st->codec->sample_rate,
858 av_get_sample_fmt_name(ist->st->codec->sample_fmt),
859 ist->st->codec->channel_layout);
860 snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
861 ist->file_index, ist->st->index);
863 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter,
868 if (audio_sync_method > 0) {
869 AVFilterContext *async;
873 av_log(NULL, AV_LOG_WARNING, "-async has been deprecated. Used the "
874 "asyncts audio filter instead.\n");
876 if (audio_sync_method > 1)
877 len += snprintf(args + len, sizeof(args) - len, "compensate=1:"
878 "max_comp=%d:", audio_sync_method);
879 snprintf(args + len, sizeof(args) - len, "min_delta=%f",
880 audio_drift_threshold);
882 snprintf(name, sizeof(name), "graph %d audio sync for input stream %d:%d",
883 fg->index, ist->file_index, ist->st->index);
884 ret = avfilter_graph_create_filter(&async,
885 avfilter_get_by_name("asyncts"),
886 name, args, NULL, fg->graph);
890 ret = avfilter_link(async, 0, first_filter, pad_idx);
894 first_filter = async;
897 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
903 static int configure_input_filter(FilterGraph *fg, InputFilter *ifilter,
906 av_freep(&ifilter->name);
907 DESCRIBE_FILTER_LINK(ifilter, in, 1);
909 switch (avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx)) {
910 case AVMEDIA_TYPE_VIDEO: return configure_input_video_filter(fg, ifilter, in);
911 case AVMEDIA_TYPE_AUDIO: return configure_input_audio_filter(fg, ifilter, in);
912 default: av_assert0(0);
916 static int configure_filtergraph(FilterGraph *fg)
918 AVFilterInOut *inputs, *outputs, *cur;
919 int ret, i, init = !fg->graph, simple = !fg->graph_desc;
920 const char *graph_desc = simple ? fg->outputs[0]->ost->avfilter :
923 avfilter_graph_free(&fg->graph);
924 if (!(fg->graph = avfilter_graph_alloc()))
925 return AVERROR(ENOMEM);
928 OutputStream *ost = fg->outputs[0]->ost;
930 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
931 fg->graph->scale_sws_opts = av_strdup(args);
934 if ((ret = avfilter_graph_parse2(fg->graph, graph_desc, &inputs, &outputs)) < 0)
937 if (simple && (!inputs || inputs->next || !outputs || outputs->next)) {
938 av_log(NULL, AV_LOG_ERROR, "Simple filtergraph '%s' does not have "
939 "exactly one input and output.\n", graph_desc);
940 return AVERROR(EINVAL);
943 for (cur = inputs; !simple && init && cur; cur = cur->next)
944 init_input_filter(fg, cur);
946 for (cur = inputs, i = 0; cur; cur = cur->next, i++)
947 if ((ret = configure_input_filter(fg, fg->inputs[i], cur)) < 0)
949 avfilter_inout_free(&inputs);
951 if (!init || simple) {
952 /* we already know the mappings between lavfi outputs and output streams,
953 * so we can finish the setup */
954 for (cur = outputs, i = 0; cur; cur = cur->next, i++)
955 configure_output_filter(fg, fg->outputs[i], cur);
956 avfilter_inout_free(&outputs);
958 if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
961 /* wait until output mappings are processed */
962 for (cur = outputs; cur;) {
963 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs),
964 &fg->nb_outputs, fg->nb_outputs + 1);
965 if (!(fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]))))
967 fg->outputs[fg->nb_outputs - 1]->graph = fg;
968 fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
970 fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
977 static int configure_complex_filters(void)
981 for (i = 0; i < nb_filtergraphs; i++)
982 if (!filtergraphs[i]->graph &&
983 (ret = configure_filtergraph(filtergraphs[i])) < 0)
988 static int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
991 for (i = 0; i < fg->nb_inputs; i++)
992 if (fg->inputs[i]->ist == ist)
997 static void term_exit(void)
999 av_log(NULL, AV_LOG_QUIET, "");
1002 static volatile int received_sigterm = 0;
1003 static volatile int received_nb_signals = 0;
1006 sigterm_handler(int sig)
1008 received_sigterm = sig;
1009 received_nb_signals++;
1013 static void term_init(void)
1015 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
1016 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
1018 signal(SIGXCPU, sigterm_handler);
1022 static int decode_interrupt_cb(void *ctx)
1024 return received_nb_signals > 1;
1027 static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
1029 void exit_program(int ret)
1033 for (i = 0; i < nb_filtergraphs; i++) {
1034 avfilter_graph_free(&filtergraphs[i]->graph);
1035 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
1036 av_freep(&filtergraphs[i]->inputs[j]->name);
1037 av_freep(&filtergraphs[i]->inputs[j]);
1039 av_freep(&filtergraphs[i]->inputs);
1040 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
1041 av_freep(&filtergraphs[i]->outputs[j]->name);
1042 av_freep(&filtergraphs[i]->outputs[j]);
1044 av_freep(&filtergraphs[i]->outputs);
1045 av_freep(&filtergraphs[i]);
1047 av_freep(&filtergraphs);
1050 for (i = 0; i < nb_output_files; i++) {
1051 AVFormatContext *s = output_files[i]->ctx;
1052 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
1054 avformat_free_context(s);
1055 av_dict_free(&output_files[i]->opts);
1056 av_freep(&output_files[i]);
1058 for (i = 0; i < nb_output_streams; i++) {
1059 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
1061 AVBitStreamFilterContext *next = bsfc->next;
1062 av_bitstream_filter_close(bsfc);
1065 output_streams[i]->bitstream_filters = NULL;
1067 av_freep(&output_streams[i]->forced_keyframes);
1068 av_freep(&output_streams[i]->avfilter);
1069 av_freep(&output_streams[i]->filtered_frame);
1070 av_freep(&output_streams[i]);
1072 for (i = 0; i < nb_input_files; i++) {
1073 avformat_close_input(&input_files[i]->ctx);
1074 av_freep(&input_files[i]);
1076 for (i = 0; i < nb_input_streams; i++) {
1077 av_freep(&input_streams[i]->decoded_frame);
1078 av_dict_free(&input_streams[i]->opts);
1079 free_buffer_pool(&input_streams[i]->buffer_pool);
1080 av_freep(&input_streams[i]->filters);
1081 av_freep(&input_streams[i]);
1085 fclose(vstats_file);
1086 av_free(vstats_filename);
1088 av_freep(&input_streams);
1089 av_freep(&input_files);
1090 av_freep(&output_streams);
1091 av_freep(&output_files);
1096 avformat_network_deinit();
1098 if (received_sigterm) {
1099 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
1100 (int) received_sigterm);
1107 static void assert_avoptions(AVDictionary *m)
1109 AVDictionaryEntry *t;
1110 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
1111 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
1116 static void assert_codec_experimental(AVCodecContext *c, int encoder)
1118 const char *codec_string = encoder ? "encoder" : "decoder";
1120 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
1121 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1122 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
1123 "results.\nAdd '-strict experimental' if you want to use it.\n",
1124 codec_string, c->codec->name);
1125 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
1126 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
1127 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
1128 codec_string, codec->name);
1134 * Update the requested input sample format based on the output sample format.
1135 * This is currently only used to request float output from decoders which
1136 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
1137 * Ideally this will be removed in the future when decoders do not do format
1138 * conversion and only output in their native format.
1140 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
1141 AVCodecContext *enc)
1143 /* if sample formats match or a decoder sample format has already been
1144 requested, just return */
1145 if (enc->sample_fmt == dec->sample_fmt ||
1146 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
1149 /* if decoder supports more than one output format */
1150 if (dec_codec && dec_codec->sample_fmts &&
1151 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
1152 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
1153 const enum AVSampleFormat *p;
1154 int min_dec = -1, min_inc = -1;
1156 /* find a matching sample format in the encoder */
1157 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
1158 if (*p == enc->sample_fmt) {
1159 dec->request_sample_fmt = *p;
1161 } else if (*p > enc->sample_fmt) {
1162 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
1164 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
1167 /* if none match, provide the one that matches quality closest */
1168 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
1169 enc->sample_fmt - min_dec;
1173 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
1175 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
1176 AVCodecContext *avctx = ost->st->codec;
1180 * Audio encoders may split the packets -- #frames in != #packets out.
1181 * But there is no reordering, so we can limit the number of output packets
1182 * by simply dropping them here.
1183 * Counting encoded video frames needs to be done separately because of
1184 * reordering, see do_video_out()
1186 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
1187 if (ost->frame_number >= ost->max_frames) {
1188 av_free_packet(pkt);
1191 ost->frame_number++;
1195 AVPacket new_pkt = *pkt;
1196 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
1197 &new_pkt.data, &new_pkt.size,
1198 pkt->data, pkt->size,
1199 pkt->flags & AV_PKT_FLAG_KEY);
1201 av_free_packet(pkt);
1202 new_pkt.destruct = av_destruct_packet;
1204 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
1205 bsfc->filter->name, pkt->stream_index,
1206 avctx->codec ? avctx->codec->name : "copy");
1216 pkt->stream_index = ost->index;
1217 ret = av_interleaved_write_frame(s, pkt);
1219 print_error("av_interleaved_write_frame()", ret);
1224 static int check_recording_time(OutputStream *ost)
1226 OutputFile *of = output_files[ost->file_index];
1228 if (of->recording_time != INT64_MAX &&
1229 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
1230 AV_TIME_BASE_Q) >= 0) {
1231 ost->is_past_recording_time = 1;
1237 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
1240 AVCodecContext *enc = ost->st->codec;
1244 av_init_packet(&pkt);
1248 if (!check_recording_time(ost))
1251 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
1252 frame->pts = ost->sync_opts;
1253 ost->sync_opts = frame->pts + frame->nb_samples;
1255 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
1256 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1261 if (pkt.pts != AV_NOPTS_VALUE)
1262 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1263 if (pkt.dts != AV_NOPTS_VALUE)
1264 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1265 if (pkt.duration > 0)
1266 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1268 write_frame(s, &pkt, ost);
1270 audio_size += pkt.size;
1274 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1276 AVCodecContext *dec;
1277 AVPicture *picture2;
1278 AVPicture picture_tmp;
1281 dec = ist->st->codec;
1283 /* deinterlace : must be done before any resize */
1284 if (do_deinterlace) {
1287 /* create temporary picture */
1288 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1289 buf = av_malloc(size);
1293 picture2 = &picture_tmp;
1294 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1296 if (avpicture_deinterlace(picture2, picture,
1297 dec->pix_fmt, dec->width, dec->height) < 0) {
1298 /* if error, do not deinterlace */
1299 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
1308 if (picture != picture2)
1309 *picture = *picture2;
1313 static void do_subtitle_out(AVFormatContext *s,
1319 static uint8_t *subtitle_out = NULL;
1320 int subtitle_out_max_size = 1024 * 1024;
1321 int subtitle_out_size, nb, i;
1322 AVCodecContext *enc;
1325 if (pts == AV_NOPTS_VALUE) {
1326 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1332 enc = ost->st->codec;
1334 if (!subtitle_out) {
1335 subtitle_out = av_malloc(subtitle_out_max_size);
1338 /* Note: DVB subtitle need one packet to draw them and one other
1339 packet to clear them */
1340 /* XXX: signal it in the codec context ? */
1341 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1346 for (i = 0; i < nb; i++) {
1347 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
1348 if (!check_recording_time(ost))
1351 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1352 // start_display_time is required to be 0
1353 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1354 sub->end_display_time -= sub->start_display_time;
1355 sub->start_display_time = 0;
1356 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1357 subtitle_out_max_size, sub);
1358 if (subtitle_out_size < 0) {
1359 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1363 av_init_packet(&pkt);
1364 pkt.data = subtitle_out;
1365 pkt.size = subtitle_out_size;
1366 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1367 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1368 /* XXX: the pts correction is handled here. Maybe handling
1369 it in the codec would be better */
1371 pkt.pts += 90 * sub->start_display_time;
1373 pkt.pts += 90 * sub->end_display_time;
1375 write_frame(s, &pkt, ost);
1379 static void do_video_out(AVFormatContext *s,
1381 AVFrame *in_picture,
1382 int *frame_size, float quality)
1384 int ret, format_video_sync;
1386 AVCodecContext *enc = ost->st->codec;
1390 format_video_sync = video_sync_method;
1391 if (format_video_sync == VSYNC_AUTO)
1392 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
1393 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
1394 if (format_video_sync != VSYNC_PASSTHROUGH &&
1395 ost->frame_number &&
1396 in_picture->pts != AV_NOPTS_VALUE &&
1397 in_picture->pts < ost->sync_opts) {
1399 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1403 if (in_picture->pts == AV_NOPTS_VALUE)
1404 in_picture->pts = ost->sync_opts;
1405 ost->sync_opts = in_picture->pts;
1408 if (!ost->frame_number)
1409 ost->first_pts = in_picture->pts;
1411 av_init_packet(&pkt);
1415 if (!check_recording_time(ost) ||
1416 ost->frame_number >= ost->max_frames)
1419 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1420 enc->codec->id == CODEC_ID_RAWVIDEO) {
1421 /* raw pictures are written as AVPicture structure to
1422 avoid any copies. We support temporarily the older
1424 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1425 enc->coded_frame->top_field_first = in_picture->top_field_first;
1426 pkt.data = (uint8_t *)in_picture;
1427 pkt.size = sizeof(AVPicture);
1428 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
1429 pkt.flags |= AV_PKT_FLAG_KEY;
1431 write_frame(s, &pkt, ost);
1434 AVFrame big_picture;
1436 big_picture = *in_picture;
1437 /* better than nothing: use input picture interlaced
1439 big_picture.interlaced_frame = in_picture->interlaced_frame;
1440 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1441 if (ost->top_field_first == -1)
1442 big_picture.top_field_first = in_picture->top_field_first;
1444 big_picture.top_field_first = !!ost->top_field_first;
1447 /* handles same_quant here. This is not correct because it may
1448 not be a global option */
1449 big_picture.quality = quality;
1450 if (!enc->me_threshold)
1451 big_picture.pict_type = 0;
1452 if (ost->forced_kf_index < ost->forced_kf_count &&
1453 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1454 big_picture.pict_type = AV_PICTURE_TYPE_I;
1455 ost->forced_kf_index++;
1457 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
1459 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1464 if (pkt.pts != AV_NOPTS_VALUE)
1465 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1466 if (pkt.dts != AV_NOPTS_VALUE)
1467 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1469 write_frame(s, &pkt, ost);
1470 *frame_size = pkt.size;
1471 video_size += pkt.size;
1473 /* if two pass, output log */
1474 if (ost->logfile && enc->stats_out) {
1475 fprintf(ost->logfile, "%s", enc->stats_out);
1481 * For video, number of frames in == number of packets out.
1482 * But there may be reordering, so we can't throw away frames on encoder
1483 * flush, we need to limit them here, before they go into encoder.
1485 ost->frame_number++;
1488 static double psnr(double d)
1490 return -10.0 * log(d) / log(10.0);
1493 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1496 AVCodecContext *enc;
1498 double ti1, bitrate, avg_bitrate;
1500 /* this is executed just the first time do_video_stats is called */
1502 vstats_file = fopen(vstats_filename, "w");
1509 enc = ost->st->codec;
1510 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1511 frame_number = ost->frame_number;
1512 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1513 if (enc->flags&CODEC_FLAG_PSNR)
1514 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1516 fprintf(vstats_file,"f_size= %6d ", frame_size);
1517 /* compute pts value */
1518 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1522 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1523 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1524 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1525 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1526 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1530 /* check for new output on any of the filtergraphs */
1531 static int poll_filters(void)
1533 AVFilterBufferRef *picref;
1534 AVFrame *filtered_frame = NULL;
1537 for (i = 0; i < nb_output_streams; i++) {
1538 OutputStream *ost = output_streams[i];
1539 OutputFile *of = output_files[ost->file_index];
1545 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1546 return AVERROR(ENOMEM);
1548 avcodec_get_frame_defaults(ost->filtered_frame);
1549 filtered_frame = ost->filtered_frame;
1551 while (ret >= 0 && !ost->is_past_recording_time) {
1552 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
1553 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
1554 ret = av_buffersink_read_samples(ost->filter->filter, &picref,
1555 ost->st->codec->frame_size);
1557 ret = av_buffersink_read(ost->filter->filter, &picref);
1559 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
1564 avfilter_copy_buf_props(filtered_frame, picref);
1565 if (picref->pts != AV_NOPTS_VALUE) {
1566 filtered_frame->pts = av_rescale_q(picref->pts,
1567 ost->filter->filter->inputs[0]->time_base,
1568 ost->st->codec->time_base) -
1569 av_rescale_q(of->start_time,
1571 ost->st->codec->time_base);
1573 if (of->start_time && filtered_frame->pts < 0) {
1574 avfilter_unref_buffer(picref);
1579 switch (ost->filter->filter->inputs[0]->type) {
1580 case AVMEDIA_TYPE_VIDEO:
1581 if (!ost->frame_aspect_ratio)
1582 ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect;
1584 do_video_out(of->ctx, ost, filtered_frame, &frame_size,
1585 same_quant ? ost->last_quality :
1586 ost->st->codec->global_quality);
1587 if (vstats_filename && frame_size)
1588 do_video_stats(of->ctx, ost, frame_size);
1590 case AVMEDIA_TYPE_AUDIO:
1591 do_audio_out(of->ctx, ost, filtered_frame);
1594 // TODO support subtitle filters
1598 avfilter_unref_buffer(picref);
1604 static void print_report(int is_last_report, int64_t timer_start)
1608 AVFormatContext *oc;
1610 AVCodecContext *enc;
1611 int frame_number, vid, i;
1612 double bitrate, ti1, pts;
1613 static int64_t last_time = -1;
1614 static int qp_histogram[52];
1616 if (!print_stats && !is_last_report)
1619 if (!is_last_report) {
1621 /* display the report every 0.5 seconds */
1622 cur_time = av_gettime();
1623 if (last_time == -1) {
1624 last_time = cur_time;
1627 if ((cur_time - last_time) < 500000)
1629 last_time = cur_time;
1633 oc = output_files[0]->ctx;
1635 total_size = avio_size(oc->pb);
1636 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
1637 total_size = avio_tell(oc->pb);
1642 for (i = 0; i < nb_output_streams; i++) {
1644 ost = output_streams[i];
1645 enc = ost->st->codec;
1646 if (!ost->stream_copy && enc->coded_frame)
1647 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1648 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1649 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1651 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1652 float t = (av_gettime() - timer_start) / 1000000.0;
1654 frame_number = ost->frame_number;
1655 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1656 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
1658 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1662 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1664 for (j = 0; j < 32; j++)
1665 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
1667 if (enc->flags&CODEC_FLAG_PSNR) {
1669 double error, error_sum = 0;
1670 double scale, scale_sum = 0;
1671 char type[3] = { 'Y','U','V' };
1672 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1673 for (j = 0; j < 3; j++) {
1674 if (is_last_report) {
1675 error = enc->error[j];
1676 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1678 error = enc->coded_frame->error[j];
1679 scale = enc->width * enc->height * 255.0 * 255.0;
1685 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
1687 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1691 /* compute min output value */
1692 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1693 if ((pts < ti1) && (pts > 0))
1699 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1701 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1702 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1703 (double)total_size / 1024, ti1, bitrate);
1705 if (nb_frames_dup || nb_frames_drop)
1706 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1707 nb_frames_dup, nb_frames_drop);
1709 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1713 if (is_last_report) {
1714 int64_t raw= audio_size + video_size + extra_size;
1715 av_log(NULL, AV_LOG_INFO, "\n");
1716 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1717 video_size / 1024.0,
1718 audio_size / 1024.0,
1719 extra_size / 1024.0,
1720 100.0 * (total_size - raw) / raw
1725 static void flush_encoders(void)
1729 for (i = 0; i < nb_output_streams; i++) {
1730 OutputStream *ost = output_streams[i];
1731 AVCodecContext *enc = ost->st->codec;
1732 AVFormatContext *os = output_files[ost->file_index]->ctx;
1733 int stop_encoding = 0;
1735 if (!ost->encoding_needed)
1738 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1740 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
1744 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1748 switch (ost->st->codec->codec_type) {
1749 case AVMEDIA_TYPE_AUDIO:
1750 encode = avcodec_encode_audio2;
1754 case AVMEDIA_TYPE_VIDEO:
1755 encode = avcodec_encode_video2;
1766 av_init_packet(&pkt);
1770 ret = encode(enc, &pkt, NULL, &got_packet);
1772 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1776 if (ost->logfile && enc->stats_out) {
1777 fprintf(ost->logfile, "%s", enc->stats_out);
1783 if (pkt.pts != AV_NOPTS_VALUE)
1784 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1785 if (pkt.dts != AV_NOPTS_VALUE)
1786 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1787 write_frame(os, &pkt, ost);
1797 * Check whether a packet from ist should be written into ost at this time
1799 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1801 OutputFile *of = output_files[ost->file_index];
1802 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1804 if (ost->source_index != ist_index)
1807 if (of->start_time && ist->last_dts < of->start_time)
1813 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1815 OutputFile *of = output_files[ost->file_index];
1816 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1819 av_init_packet(&opkt);
1821 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1822 !ost->copy_initial_nonkeyframes)
1825 if (of->recording_time != INT64_MAX &&
1826 ist->last_dts >= of->recording_time + of->start_time) {
1827 ost->is_past_recording_time = 1;
1831 /* force the input stream PTS */
1832 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1833 audio_size += pkt->size;
1834 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1835 video_size += pkt->size;
1839 if (pkt->pts != AV_NOPTS_VALUE)
1840 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1842 opkt.pts = AV_NOPTS_VALUE;
1844 if (pkt->dts == AV_NOPTS_VALUE)
1845 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1847 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1848 opkt.dts -= ost_tb_start_time;
1850 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1851 opkt.flags = pkt->flags;
1853 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1854 if ( ost->st->codec->codec_id != CODEC_ID_H264
1855 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1856 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1857 && ost->st->codec->codec_id != CODEC_ID_VC1
1859 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1860 opkt.destruct = av_destruct_packet;
1862 opkt.data = pkt->data;
1863 opkt.size = pkt->size;
1866 write_frame(of->ctx, &opkt, ost);
1867 ost->st->codec->frame_number++;
1868 av_free_packet(&opkt);
1871 static void rate_emu_sleep(InputStream *ist)
1873 if (input_files[ist->file_index]->rate_emu) {
1874 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
1875 int64_t now = av_gettime() - ist->start;
1877 av_usleep(pts - now);
1881 static int guess_input_channel_layout(InputStream *ist)
1883 AVCodecContext *dec = ist->st->codec;
1885 if (!dec->channel_layout) {
1886 char layout_name[256];
1888 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1889 if (!dec->channel_layout)
1891 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1892 dec->channels, dec->channel_layout);
1893 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1894 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1899 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1901 AVFrame *decoded_frame;
1902 AVCodecContext *avctx = ist->st->codec;
1903 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1904 int i, ret, resample_changed;
1906 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1907 return AVERROR(ENOMEM);
1909 avcodec_get_frame_defaults(ist->decoded_frame);
1910 decoded_frame = ist->decoded_frame;
1912 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1918 /* no audio frame */
1920 for (i = 0; i < ist->nb_filters; i++)
1921 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
1925 /* if the decoder provides a pts, use it instead of the last packet pts.
1926 the decoder could be delaying output by a packet or more. */
1927 if (decoded_frame->pts != AV_NOPTS_VALUE)
1928 ist->next_dts = decoded_frame->pts;
1929 else if (pkt->pts != AV_NOPTS_VALUE) {
1930 decoded_frame->pts = pkt->pts;
1931 pkt->pts = AV_NOPTS_VALUE;
1934 // preprocess audio (volume)
1935 if (audio_volume != 256) {
1936 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1937 void *samples = decoded_frame->data[0];
1938 switch (avctx->sample_fmt) {
1939 case AV_SAMPLE_FMT_U8:
1941 uint8_t *volp = samples;
1942 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1943 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1944 *volp++ = av_clip_uint8(v);
1948 case AV_SAMPLE_FMT_S16:
1950 int16_t *volp = samples;
1951 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1952 int v = ((*volp) * audio_volume + 128) >> 8;
1953 *volp++ = av_clip_int16(v);
1957 case AV_SAMPLE_FMT_S32:
1959 int32_t *volp = samples;
1960 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1961 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1962 *volp++ = av_clipl_int32(v);
1966 case AV_SAMPLE_FMT_FLT:
1968 float *volp = samples;
1969 float scale = audio_volume / 256.f;
1970 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1975 case AV_SAMPLE_FMT_DBL:
1977 double *volp = samples;
1978 double scale = audio_volume / 256.;
1979 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1985 av_log(NULL, AV_LOG_FATAL,
1986 "Audio volume adjustment on sample format %s is not supported.\n",
1987 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1992 rate_emu_sleep(ist);
1994 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1995 ist->resample_channels != avctx->channels ||
1996 ist->resample_channel_layout != decoded_frame->channel_layout ||
1997 ist->resample_sample_rate != decoded_frame->sample_rate;
1998 if (resample_changed) {
1999 char layout1[64], layout2[64];
2001 if (!guess_input_channel_layout(ist)) {
2002 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
2003 "layout for Input Stream #%d.%d\n", ist->file_index,
2007 decoded_frame->channel_layout = avctx->channel_layout;
2009 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
2010 ist->resample_channel_layout);
2011 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
2012 decoded_frame->channel_layout);
2014 av_log(NULL, AV_LOG_INFO,
2015 "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",
2016 ist->file_index, ist->st->index,
2017 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
2018 ist->resample_channels, layout1,
2019 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
2020 avctx->channels, layout2);
2022 ist->resample_sample_fmt = decoded_frame->format;
2023 ist->resample_sample_rate = decoded_frame->sample_rate;
2024 ist->resample_channel_layout = decoded_frame->channel_layout;
2025 ist->resample_channels = avctx->channels;
2027 for (i = 0; i < nb_filtergraphs; i++)
2028 if (ist_in_filtergraph(filtergraphs[i], ist) &&
2029 configure_filtergraph(filtergraphs[i]) < 0) {
2030 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2035 if (decoded_frame->pts != AV_NOPTS_VALUE)
2036 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
2038 (AVRational){1, ist->st->codec->sample_rate});
2039 for (i = 0; i < ist->nb_filters; i++)
2040 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
2045 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
2047 AVFrame *decoded_frame;
2048 void *buffer_to_free = NULL;
2049 int i, ret = 0, resample_changed;
2052 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
2053 return AVERROR(ENOMEM);
2055 avcodec_get_frame_defaults(ist->decoded_frame);
2056 decoded_frame = ist->decoded_frame;
2058 ret = avcodec_decode_video2(ist->st->codec,
2059 decoded_frame, got_output, pkt);
2063 quality = same_quant ? decoded_frame->quality : 0;
2065 /* no picture yet */
2067 for (i = 0; i < ist->nb_filters; i++)
2068 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
2071 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
2072 decoded_frame->pkt_dts);
2074 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
2076 rate_emu_sleep(ist);
2078 if (ist->st->sample_aspect_ratio.num)
2079 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
2081 resample_changed = ist->resample_width != decoded_frame->width ||
2082 ist->resample_height != decoded_frame->height ||
2083 ist->resample_pix_fmt != decoded_frame->format;
2084 if (resample_changed) {
2085 av_log(NULL, AV_LOG_INFO,
2086 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
2087 ist->file_index, ist->st->index,
2088 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
2089 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
2091 ist->resample_width = decoded_frame->width;
2092 ist->resample_height = decoded_frame->height;
2093 ist->resample_pix_fmt = decoded_frame->format;
2095 for (i = 0; i < nb_filtergraphs; i++)
2096 if (ist_in_filtergraph(filtergraphs[i], ist) &&
2097 configure_filtergraph(filtergraphs[i]) < 0) {
2098 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2103 for (i = 0; i < ist->nb_filters; i++) {
2104 // XXX what an ugly hack
2105 if (ist->filters[i]->graph->nb_outputs == 1)
2106 ist->filters[i]->graph->outputs[0]->ost->last_quality = quality;
2108 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
2109 FrameBuffer *buf = decoded_frame->opaque;
2110 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
2111 decoded_frame->data, decoded_frame->linesize,
2112 AV_PERM_READ | AV_PERM_PRESERVE,
2113 ist->st->codec->width, ist->st->codec->height,
2114 ist->st->codec->pix_fmt);
2116 avfilter_copy_frame_props(fb, decoded_frame);
2117 fb->buf->priv = buf;
2118 fb->buf->free = filter_release_buffer;
2121 av_buffersrc_buffer(ist->filters[i]->filter, fb);
2123 av_buffersrc_write_frame(ist->filters[i]->filter, decoded_frame);
2126 av_free(buffer_to_free);
2130 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
2132 AVSubtitle subtitle;
2133 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
2134 &subtitle, got_output, pkt);
2140 rate_emu_sleep(ist);
2142 for (i = 0; i < nb_output_streams; i++) {
2143 OutputStream *ost = output_streams[i];
2145 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2148 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
2151 avsubtitle_free(&subtitle);
2155 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2156 static int output_packet(InputStream *ist, const AVPacket *pkt)
2162 if (ist->next_dts == AV_NOPTS_VALUE)
2163 ist->next_dts = ist->last_dts;
2167 av_init_packet(&avpkt);
2175 if (pkt->dts != AV_NOPTS_VALUE)
2176 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2178 // while we have more to decode or while the decoder did output something on EOF
2179 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2183 ist->last_dts = ist->next_dts;
2185 if (avpkt.size && avpkt.size != pkt->size) {
2186 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2187 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2188 ist->showed_multi_packet_warning = 1;
2191 switch (ist->st->codec->codec_type) {
2192 case AVMEDIA_TYPE_AUDIO:
2193 ret = decode_audio (ist, &avpkt, &got_output);
2195 case AVMEDIA_TYPE_VIDEO:
2196 ret = decode_video (ist, &avpkt, &got_output);
2198 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
2199 else if (ist->st->avg_frame_rate.num)
2200 ist->next_dts += av_rescale_q(1, (AVRational){ist->st->avg_frame_rate.den,
2201 ist->st->avg_frame_rate.num},
2203 else if (ist->st->codec->time_base.num != 0) {
2204 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
2205 ist->st->codec->ticks_per_frame;
2206 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
2209 case AVMEDIA_TYPE_SUBTITLE:
2210 ret = transcode_subtitles(ist, &avpkt, &got_output);
2218 // touch data and size only if not EOF
2228 /* handle stream copy */
2229 if (!ist->decoding_needed) {
2230 rate_emu_sleep(ist);
2231 ist->last_dts = ist->next_dts;
2232 switch (ist->st->codec->codec_type) {
2233 case AVMEDIA_TYPE_AUDIO:
2234 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2235 ist->st->codec->sample_rate;
2237 case AVMEDIA_TYPE_VIDEO:
2238 if (ist->st->codec->time_base.num != 0) {
2239 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
2240 ist->next_dts += ((int64_t)AV_TIME_BASE *
2241 ist->st->codec->time_base.num * ticks) /
2242 ist->st->codec->time_base.den;
2247 for (i = 0; pkt && i < nb_output_streams; i++) {
2248 OutputStream *ost = output_streams[i];
2250 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2253 do_streamcopy(ist, ost, pkt);
2259 static void print_sdp(void)
2263 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
2267 for (i = 0; i < nb_output_files; i++)
2268 avc[i] = output_files[i]->ctx;
2270 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
2271 printf("SDP:\n%s\n", sdp);
2276 static int init_input_stream(int ist_index, char *error, int error_len)
2279 InputStream *ist = input_streams[ist_index];
2280 if (ist->decoding_needed) {
2281 AVCodec *codec = ist->dec;
2283 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
2284 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2285 return AVERROR(EINVAL);
2288 /* update requested sample format for the decoder based on the
2289 corresponding encoder sample format */
2290 for (i = 0; i < nb_output_streams; i++) {
2291 OutputStream *ost = output_streams[i];
2292 if (ost->source_index == ist_index) {
2293 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2298 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
2299 ist->st->codec->get_buffer = codec_get_buffer;
2300 ist->st->codec->release_buffer = codec_release_buffer;
2301 ist->st->codec->opaque = &ist->buffer_pool;
2304 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2305 av_dict_set(&ist->opts, "threads", "auto", 0);
2306 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2307 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
2308 ist->file_index, ist->st->index);
2309 return AVERROR(EINVAL);
2311 assert_codec_experimental(ist->st->codec, 0);
2312 assert_avoptions(ist->opts);
2315 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;
2316 ist->next_dts = AV_NOPTS_VALUE;
2317 init_pts_correction(&ist->pts_ctx);
2323 static InputStream *get_input_stream(OutputStream *ost)
2325 if (ost->source_index >= 0)
2326 return input_streams[ost->source_index];
2329 FilterGraph *fg = ost->filter->graph;
2332 for (i = 0; i < fg->nb_inputs; i++)
2333 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
2334 return fg->inputs[i]->ist;
2340 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2341 AVCodecContext *avctx)
2347 for (p = kf; *p; p++)
2350 ost->forced_kf_count = n;
2351 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
2352 if (!ost->forced_kf_pts) {
2353 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2358 for (i = 0; i < n; i++) {
2359 char *next = strchr(p, ',');
2364 t = parse_time_or_die("force_key_frames", p, 1);
2365 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2371 static int transcode_init(void)
2373 int ret = 0, i, j, k;
2374 AVFormatContext *oc;
2375 AVCodecContext *codec, *icodec;
2381 /* init framerate emulation */
2382 for (i = 0; i < nb_input_files; i++) {
2383 InputFile *ifile = input_files[i];
2384 if (ifile->rate_emu)
2385 for (j = 0; j < ifile->nb_streams; j++)
2386 input_streams[j + ifile->ist_index]->start = av_gettime();
2389 /* output stream init */
2390 for (i = 0; i < nb_output_files; i++) {
2391 oc = output_files[i]->ctx;
2392 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2393 av_dump_format(oc, i, oc->filename, 1);
2394 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2395 return AVERROR(EINVAL);
2399 /* init complex filtergraphs */
2400 for (i = 0; i < nb_filtergraphs; i++)
2401 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2404 /* for each output stream, we compute the right encoding parameters */
2405 for (i = 0; i < nb_output_streams; i++) {
2406 ost = output_streams[i];
2407 oc = output_files[ost->file_index]->ctx;
2408 ist = get_input_stream(ost);
2410 if (ost->attachment_filename)
2413 codec = ost->st->codec;
2416 icodec = ist->st->codec;
2418 ost->st->disposition = ist->st->disposition;
2419 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2420 codec->chroma_sample_location = icodec->chroma_sample_location;
2423 if (ost->stream_copy) {
2424 uint64_t extra_size;
2426 av_assert0(ist && !ost->filter);
2428 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2430 if (extra_size > INT_MAX) {
2431 return AVERROR(EINVAL);
2434 /* if stream_copy is selected, no need to decode or encode */
2435 codec->codec_id = icodec->codec_id;
2436 codec->codec_type = icodec->codec_type;
2438 if (!codec->codec_tag) {
2439 if (!oc->oformat->codec_tag ||
2440 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2441 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2442 codec->codec_tag = icodec->codec_tag;
2445 codec->bit_rate = icodec->bit_rate;
2446 codec->rc_max_rate = icodec->rc_max_rate;
2447 codec->rc_buffer_size = icodec->rc_buffer_size;
2448 codec->field_order = icodec->field_order;
2449 codec->extradata = av_mallocz(extra_size);
2450 if (!codec->extradata) {
2451 return AVERROR(ENOMEM);
2453 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2454 codec->extradata_size = icodec->extradata_size;
2456 codec->time_base = icodec->time_base;
2457 codec->time_base.num *= icodec->ticks_per_frame;
2458 av_reduce(&codec->time_base.num, &codec->time_base.den,
2459 codec->time_base.num, codec->time_base.den, INT_MAX);
2461 codec->time_base = ist->st->time_base;
2463 switch (codec->codec_type) {
2464 case AVMEDIA_TYPE_AUDIO:
2465 if (audio_volume != 256) {
2466 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2469 codec->channel_layout = icodec->channel_layout;
2470 codec->sample_rate = icodec->sample_rate;
2471 codec->channels = icodec->channels;
2472 codec->frame_size = icodec->frame_size;
2473 codec->audio_service_type = icodec->audio_service_type;
2474 codec->block_align = icodec->block_align;
2476 case AVMEDIA_TYPE_VIDEO:
2477 codec->pix_fmt = icodec->pix_fmt;
2478 codec->width = icodec->width;
2479 codec->height = icodec->height;
2480 codec->has_b_frames = icodec->has_b_frames;
2481 if (!codec->sample_aspect_ratio.num) {
2482 codec->sample_aspect_ratio =
2483 ost->st->sample_aspect_ratio =
2484 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2485 ist->st->codec->sample_aspect_ratio.num ?
2486 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2489 case AVMEDIA_TYPE_SUBTITLE:
2490 codec->width = icodec->width;
2491 codec->height = icodec->height;
2493 case AVMEDIA_TYPE_DATA:
2494 case AVMEDIA_TYPE_ATTACHMENT:
2501 /* should only happen when a default codec is not present. */
2502 snprintf(error, sizeof(error), "Automatic encoder selection "
2503 "failed for output stream #%d:%d. Default encoder for "
2504 "format %s is probably disabled. Please choose an "
2505 "encoder manually.\n", ost->file_index, ost->index,
2507 ret = AVERROR(EINVAL);
2512 ist->decoding_needed = 1;
2513 ost->encoding_needed = 1;
2516 * We want CFR output if and only if one of those is true:
2517 * 1) user specified output framerate with -r
2518 * 2) user specified -vsync cfr
2519 * 3) output format is CFR and the user didn't force vsync to
2520 * something else than CFR
2522 * in such a case, set ost->frame_rate
2524 if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
2525 !ost->frame_rate.num && ist &&
2526 (video_sync_method == VSYNC_CFR ||
2527 (video_sync_method == VSYNC_AUTO &&
2528 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
2529 ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
2530 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2531 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2532 ost->frame_rate = ost->enc->supported_framerates[idx];
2537 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2538 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
2540 fg = init_simple_filtergraph(ist, ost);
2541 if (configure_filtergraph(fg)) {
2542 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2547 switch (codec->codec_type) {
2548 case AVMEDIA_TYPE_AUDIO:
2549 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
2550 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
2551 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
2552 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
2553 codec->time_base = (AVRational){ 1, codec->sample_rate };
2555 case AVMEDIA_TYPE_VIDEO:
2556 codec->time_base = ost->filter->filter->inputs[0]->time_base;
2558 codec->width = ost->filter->filter->inputs[0]->w;
2559 codec->height = ost->filter->filter->inputs[0]->h;
2560 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2561 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2562 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
2563 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2564 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
2566 if (codec->width != icodec->width ||
2567 codec->height != icodec->height ||
2568 codec->pix_fmt != icodec->pix_fmt) {
2569 codec->bits_per_raw_sample = 0;
2572 if (ost->forced_keyframes)
2573 parse_forced_key_frames(ost->forced_keyframes, ost,
2576 case AVMEDIA_TYPE_SUBTITLE:
2577 codec->time_base = (AVRational){1, 1000};
2584 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2585 char logfilename[1024];
2588 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2589 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2591 if (!strcmp(ost->enc->name, "libx264")) {
2592 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2594 if (codec->flags & CODEC_FLAG_PASS1) {
2595 f = fopen(logfilename, "wb");
2597 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2598 logfilename, strerror(errno));
2604 size_t logbuffer_size;
2605 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2606 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2610 codec->stats_in = logbuffer;
2617 /* open each encoder */
2618 for (i = 0; i < nb_output_streams; i++) {
2619 ost = output_streams[i];
2620 if (ost->encoding_needed) {
2621 AVCodec *codec = ost->enc;
2622 AVCodecContext *dec = NULL;
2624 if ((ist = get_input_stream(ost)))
2625 dec = ist->st->codec;
2626 if (dec && dec->subtitle_header) {
2627 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2628 if (!ost->st->codec->subtitle_header) {
2629 ret = AVERROR(ENOMEM);
2632 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2633 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2635 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2636 av_dict_set(&ost->opts, "threads", "auto", 0);
2637 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2638 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2639 ost->file_index, ost->index);
2640 ret = AVERROR(EINVAL);
2643 assert_codec_experimental(ost->st->codec, 1);
2644 assert_avoptions(ost->opts);
2645 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2646 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2647 "It takes bits/s as argument, not kbits/s\n");
2648 extra_size += ost->st->codec->extradata_size;
2650 if (ost->st->codec->me_threshold)
2651 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2655 /* init input streams */
2656 for (i = 0; i < nb_input_streams; i++)
2657 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2660 /* discard unused programs */
2661 for (i = 0; i < nb_input_files; i++) {
2662 InputFile *ifile = input_files[i];
2663 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2664 AVProgram *p = ifile->ctx->programs[j];
2665 int discard = AVDISCARD_ALL;
2667 for (k = 0; k < p->nb_stream_indexes; k++)
2668 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2669 discard = AVDISCARD_DEFAULT;
2672 p->discard = discard;
2676 /* open files and write file headers */
2677 for (i = 0; i < nb_output_files; i++) {
2678 oc = output_files[i]->ctx;
2679 oc->interrupt_callback = int_cb;
2680 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
2682 const char *errbuf_ptr = errbuf;
2683 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
2684 errbuf_ptr = strerror(AVUNERROR(ret));
2685 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
2686 ret = AVERROR(EINVAL);
2689 assert_avoptions(output_files[i]->opts);
2690 if (strcmp(oc->oformat->name, "rtp")) {
2696 /* dump the file output parameters - cannot be done before in case
2698 for (i = 0; i < nb_output_files; i++) {
2699 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2702 /* dump the stream mapping */
2703 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2704 for (i = 0; i < nb_input_streams; i++) {
2705 ist = input_streams[i];
2707 for (j = 0; j < ist->nb_filters; j++) {
2708 if (ist->filters[j]->graph->graph_desc) {
2709 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2710 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2711 ist->filters[j]->name);
2712 if (nb_filtergraphs > 1)
2713 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2714 av_log(NULL, AV_LOG_INFO, "\n");
2719 for (i = 0; i < nb_output_streams; i++) {
2720 ost = output_streams[i];
2722 if (ost->attachment_filename) {
2723 /* an attached file */
2724 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2725 ost->attachment_filename, ost->file_index, ost->index);
2729 if (ost->filter && ost->filter->graph->graph_desc) {
2730 /* output from a complex graph */
2731 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2732 if (nb_filtergraphs > 1)
2733 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2735 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2736 ost->index, ost->enc ? ost->enc->name : "?");
2740 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2741 input_streams[ost->source_index]->file_index,
2742 input_streams[ost->source_index]->st->index,
2745 if (ost->sync_ist != input_streams[ost->source_index])
2746 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2747 ost->sync_ist->file_index,
2748 ost->sync_ist->st->index);
2749 if (ost->stream_copy)
2750 av_log(NULL, AV_LOG_INFO, " (copy)");
2752 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2753 input_streams[ost->source_index]->dec->name : "?",
2754 ost->enc ? ost->enc->name : "?");
2755 av_log(NULL, AV_LOG_INFO, "\n");
2759 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2771 * @return 1 if there are still streams where more output is wanted,
2774 static int need_output(void)
2778 for (i = 0; i < nb_output_streams; i++) {
2779 OutputStream *ost = output_streams[i];
2780 OutputFile *of = output_files[ost->file_index];
2781 AVFormatContext *os = output_files[ost->file_index]->ctx;
2783 if (ost->is_past_recording_time ||
2784 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2786 if (ost->frame_number >= ost->max_frames) {
2788 for (j = 0; j < of->ctx->nb_streams; j++)
2789 output_streams[of->ost_index + j]->is_past_recording_time = 1;
2799 static int select_input_file(uint8_t *no_packet)
2801 int64_t ipts_min = INT64_MAX;
2802 int i, file_index = -1;
2804 for (i = 0; i < nb_input_streams; i++) {
2805 InputStream *ist = input_streams[i];
2806 int64_t ipts = ist->last_dts;
2808 if (ist->discard || no_packet[ist->file_index])
2810 if (!input_files[ist->file_index]->eof_reached) {
2811 if (ipts < ipts_min) {
2813 file_index = ist->file_index;
2822 static void *input_thread(void *arg)
2827 while (!transcoding_finished && ret >= 0) {
2829 ret = av_read_frame(f->ctx, &pkt);
2831 if (ret == AVERROR(EAGAIN)) {
2838 pthread_mutex_lock(&f->fifo_lock);
2839 while (!av_fifo_space(f->fifo))
2840 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2842 av_dup_packet(&pkt);
2843 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2845 pthread_mutex_unlock(&f->fifo_lock);
2852 static void free_input_threads(void)
2856 if (nb_input_files == 1)
2859 transcoding_finished = 1;
2861 for (i = 0; i < nb_input_files; i++) {
2862 InputFile *f = input_files[i];
2865 if (!f->fifo || f->joined)
2868 pthread_mutex_lock(&f->fifo_lock);
2869 while (av_fifo_size(f->fifo)) {
2870 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2871 av_free_packet(&pkt);
2873 pthread_cond_signal(&f->fifo_cond);
2874 pthread_mutex_unlock(&f->fifo_lock);
2876 pthread_join(f->thread, NULL);
2879 while (av_fifo_size(f->fifo)) {
2880 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2881 av_free_packet(&pkt);
2883 av_fifo_free(f->fifo);
2887 static int init_input_threads(void)
2891 if (nb_input_files == 1)
2894 for (i = 0; i < nb_input_files; i++) {
2895 InputFile *f = input_files[i];
2897 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2898 return AVERROR(ENOMEM);
2900 pthread_mutex_init(&f->fifo_lock, NULL);
2901 pthread_cond_init (&f->fifo_cond, NULL);
2903 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2904 return AVERROR(ret);
2909 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2913 pthread_mutex_lock(&f->fifo_lock);
2915 if (av_fifo_size(f->fifo)) {
2916 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2917 pthread_cond_signal(&f->fifo_cond);
2922 ret = AVERROR(EAGAIN);
2925 pthread_mutex_unlock(&f->fifo_lock);
2931 static int get_input_packet(InputFile *f, AVPacket *pkt)
2934 if (nb_input_files > 1)
2935 return get_input_packet_mt(f, pkt);
2937 return av_read_frame(f->ctx, pkt);
2941 * The following code is the main loop of the file converter
2943 static int transcode(void)
2946 AVFormatContext *is, *os;
2950 int no_packet_count = 0;
2951 int64_t timer_start;
2953 if (!(no_packet = av_mallocz(nb_input_files)))
2956 ret = transcode_init();
2960 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2963 timer_start = av_gettime();
2966 if ((ret = init_input_threads()) < 0)
2970 for (; received_sigterm == 0;) {
2971 int file_index, ist_index;
2974 /* check if there's any stream where output is still needed */
2975 if (!need_output()) {
2976 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2980 /* select the stream that we must read now */
2981 file_index = select_input_file(no_packet);
2982 /* if none, if is finished */
2983 if (file_index < 0) {
2984 if (no_packet_count) {
2985 no_packet_count = 0;
2986 memset(no_packet, 0, nb_input_files);
2990 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
2994 is = input_files[file_index]->ctx;
2995 ret = get_input_packet(input_files[file_index], &pkt);
2997 if (ret == AVERROR(EAGAIN)) {
2998 no_packet[file_index] = 1;
3003 if (ret != AVERROR_EOF) {
3004 print_error(is->filename, ret);
3008 input_files[file_index]->eof_reached = 1;
3010 for (i = 0; i < input_files[file_index]->nb_streams; i++) {
3011 ist = input_streams[input_files[file_index]->ist_index + i];
3012 if (ist->decoding_needed)
3013 output_packet(ist, NULL);
3022 no_packet_count = 0;
3023 memset(no_packet, 0, nb_input_files);
3026 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
3027 is->streams[pkt.stream_index]);
3029 /* the following test is needed in case new streams appear
3030 dynamically in stream : we ignore them */
3031 if (pkt.stream_index >= input_files[file_index]->nb_streams)
3032 goto discard_packet;
3033 ist_index = input_files[file_index]->ist_index + pkt.stream_index;
3034 ist = input_streams[ist_index];
3036 goto discard_packet;
3038 if (pkt.dts != AV_NOPTS_VALUE)
3039 pkt.dts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3040 if (pkt.pts != AV_NOPTS_VALUE)
3041 pkt.pts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3043 if (pkt.pts != AV_NOPTS_VALUE)
3044 pkt.pts *= ist->ts_scale;
3045 if (pkt.dts != AV_NOPTS_VALUE)
3046 pkt.dts *= ist->ts_scale;
3048 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
3050 // pkt.dts, input_files[ist->file_index].ts_offset,
3051 // ist->st->codec->codec_type);
3052 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE
3053 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
3054 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3055 int64_t delta = pkt_dts - ist->next_dts;
3056 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
3057 input_files[ist->file_index]->ts_offset -= delta;
3058 av_log(NULL, AV_LOG_DEBUG,
3059 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3060 delta, input_files[ist->file_index]->ts_offset);
3061 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3062 if (pkt.pts != AV_NOPTS_VALUE)
3063 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3067 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
3068 if (output_packet(ist, &pkt) < 0 || poll_filters() < 0) {
3069 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
3070 ist->file_index, ist->st->index);
3073 av_free_packet(&pkt);
3078 av_free_packet(&pkt);
3080 /* dump report by using the output first video and audio streams */
3081 print_report(0, timer_start);
3084 free_input_threads();
3087 /* at the end of stream, we must flush the decoder buffers */
3088 for (i = 0; i < nb_input_streams; i++) {
3089 ist = input_streams[i];
3090 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
3091 output_packet(ist, NULL);
3099 /* write the trailer if needed and close file */
3100 for (i = 0; i < nb_output_files; i++) {
3101 os = output_files[i]->ctx;
3102 av_write_trailer(os);
3105 /* dump report by using the first video and audio streams */
3106 print_report(1, timer_start);
3108 /* close each encoder */
3109 for (i = 0; i < nb_output_streams; i++) {
3110 ost = output_streams[i];
3111 if (ost->encoding_needed) {
3112 av_freep(&ost->st->codec->stats_in);
3113 avcodec_close(ost->st->codec);
3117 /* close each decoder */
3118 for (i = 0; i < nb_input_streams; i++) {
3119 ist = input_streams[i];
3120 if (ist->decoding_needed) {
3121 avcodec_close(ist->st->codec);
3129 av_freep(&no_packet);
3131 free_input_threads();
3134 if (output_streams) {
3135 for (i = 0; i < nb_output_streams; i++) {
3136 ost = output_streams[i];
3138 if (ost->stream_copy)
3139 av_freep(&ost->st->codec->extradata);
3141 fclose(ost->logfile);
3142 ost->logfile = NULL;
3144 av_freep(&ost->st->codec->subtitle_header);
3145 av_free(ost->forced_kf_pts);
3146 av_dict_free(&ost->opts);
3153 static double parse_frame_aspect_ratio(const char *arg)
3160 p = strchr(arg, ':');
3162 x = strtol(arg, &end, 10);
3164 y = strtol(end + 1, &end, 10);
3166 ar = (double)x / (double)y;
3168 ar = strtod(arg, NULL);
3171 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
3177 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
3179 return parse_option(o, "codec:a", arg, options);
3182 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
3184 return parse_option(o, "codec:v", arg, options);
3187 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
3189 return parse_option(o, "codec:s", arg, options);
3192 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
3194 return parse_option(o, "codec:d", arg, options);
3197 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
3199 StreamMap *m = NULL;
3200 int i, negative = 0, file_idx;
3201 int sync_file_idx = -1, sync_stream_idx;
3209 map = av_strdup(arg);
3211 /* parse sync stream first, just pick first matching stream */
3212 if (sync = strchr(map, ',')) {
3214 sync_file_idx = strtol(sync + 1, &sync, 0);
3215 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
3216 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
3221 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
3222 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
3223 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
3224 sync_stream_idx = i;
3227 if (i == input_files[sync_file_idx]->nb_streams) {
3228 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
3229 "match any streams.\n", arg);
3235 if (map[0] == '[') {
3236 /* this mapping refers to lavfi output */
3237 const char *c = map + 1;
3238 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
3239 &o->nb_stream_maps, o->nb_stream_maps + 1);
3240 m = &o->stream_maps[o->nb_stream_maps - 1];
3241 m->linklabel = av_get_token(&c, "]");
3242 if (!m->linklabel) {
3243 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
3247 file_idx = strtol(map, &p, 0);
3248 if (file_idx >= nb_input_files || file_idx < 0) {
3249 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
3253 /* disable some already defined maps */
3254 for (i = 0; i < o->nb_stream_maps; i++) {
3255 m = &o->stream_maps[i];
3256 if (file_idx == m->file_index &&
3257 check_stream_specifier(input_files[m->file_index]->ctx,
3258 input_files[m->file_index]->ctx->streams[m->stream_index],
3259 *p == ':' ? p + 1 : p) > 0)
3263 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
3264 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
3265 *p == ':' ? p + 1 : p) <= 0)
3267 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
3268 &o->nb_stream_maps, o->nb_stream_maps + 1);
3269 m = &o->stream_maps[o->nb_stream_maps - 1];
3271 m->file_index = file_idx;
3272 m->stream_index = i;
3274 if (sync_file_idx >= 0) {
3275 m->sync_file_index = sync_file_idx;
3276 m->sync_stream_index = sync_stream_idx;
3278 m->sync_file_index = file_idx;
3279 m->sync_stream_index = i;
3285 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
3293 static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
3295 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
3296 &o->nb_attachments, o->nb_attachments + 1);
3297 o->attachments[o->nb_attachments - 1] = arg;
3302 * Parse a metadata specifier in arg.
3303 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
3304 * @param index for type c/p, chapter/program index is written here
3305 * @param stream_spec for type s, the stream specifier is written here
3307 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
3315 if (*(++arg) && *arg != ':') {
3316 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
3319 *stream_spec = *arg == ':' ? arg + 1 : "";
3323 if (*(++arg) == ':')
3324 *index = strtol(++arg, NULL, 0);
3327 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
3334 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
3336 AVDictionary **meta_in = NULL;
3337 AVDictionary **meta_out;
3339 char type_in, type_out;
3340 const char *istream_spec = NULL, *ostream_spec = NULL;
3341 int idx_in = 0, idx_out = 0;
3343 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
3344 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
3346 if (type_in == 'g' || type_out == 'g')
3347 o->metadata_global_manual = 1;
3348 if (type_in == 's' || type_out == 's')
3349 o->metadata_streams_manual = 1;
3350 if (type_in == 'c' || type_out == 'c')
3351 o->metadata_chapters_manual = 1;
3353 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3354 if ((index) < 0 || (index) >= (nb_elems)) {\
3355 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
3360 #define SET_DICT(type, meta, context, index)\
3363 meta = &context->metadata;\
3366 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
3367 meta = &context->chapters[index]->metadata;\
3370 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
3371 meta = &context->programs[index]->metadata;\
3373 default: av_assert0(0);\
3376 SET_DICT(type_in, meta_in, ic, idx_in);
3377 SET_DICT(type_out, meta_out, oc, idx_out);
3379 /* for input streams choose first matching stream */
3380 if (type_in == 's') {
3381 for (i = 0; i < ic->nb_streams; i++) {
3382 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3383 meta_in = &ic->streams[i]->metadata;
3389 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3394 if (type_out == 's') {
3395 for (i = 0; i < oc->nb_streams; i++) {
3396 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3397 meta_out = &oc->streams[i]->metadata;
3398 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3403 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3408 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
3410 const char *codec_string = encoder ? "encoder" : "decoder";
3414 avcodec_find_encoder_by_name(name) :
3415 avcodec_find_decoder_by_name(name);
3417 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
3420 if (codec->type != type) {
3421 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
3427 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
3429 char *codec_name = NULL;
3431 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
3433 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3434 st->codec->codec_id = codec->id;
3437 return avcodec_find_decoder(st->codec->codec_id);
3441 * Add all the streams from the given input file to the global
3442 * list of input streams.
3444 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
3448 for (i = 0; i < ic->nb_streams; i++) {
3449 AVStream *st = ic->streams[i];
3450 AVCodecContext *dec = st->codec;
3451 InputStream *ist = av_mallocz(sizeof(*ist));
3452 char *framerate = NULL;
3457 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3458 input_streams[nb_input_streams - 1] = ist;
3461 ist->file_index = nb_input_files;
3463 st->discard = AVDISCARD_ALL;
3464 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st, NULL);
3466 ist->ts_scale = 1.0;
3467 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
3469 ist->dec = choose_decoder(o, ic, st);
3471 switch (dec->codec_type) {
3472 case AVMEDIA_TYPE_VIDEO:
3473 ist->resample_height = dec->height;
3474 ist->resample_width = dec->width;
3475 ist->resample_pix_fmt = dec->pix_fmt;
3477 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
3478 if (framerate && av_parse_video_rate(&ist->framerate,
3480 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
3486 case AVMEDIA_TYPE_AUDIO:
3487 guess_input_channel_layout(ist);
3489 ist->resample_sample_fmt = dec->sample_fmt;
3490 ist->resample_sample_rate = dec->sample_rate;
3491 ist->resample_channels = dec->channels;
3492 ist->resample_channel_layout = dec->channel_layout;
3495 case AVMEDIA_TYPE_DATA:
3496 case AVMEDIA_TYPE_SUBTITLE:
3497 case AVMEDIA_TYPE_ATTACHMENT:
3498 case AVMEDIA_TYPE_UNKNOWN:
3506 static void assert_file_overwrite(const char *filename)
3508 if (!file_overwrite &&
3509 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3510 av_strstart(filename, "file:", NULL))) {
3511 if (avio_check(filename, 0) == 0) {
3513 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3515 if (!read_yesno()) {
3516 fprintf(stderr, "Not overwriting - exiting\n");
3521 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3528 static void dump_attachment(AVStream *st, const char *filename)
3531 AVIOContext *out = NULL;
3532 AVDictionaryEntry *e;
3534 if (!st->codec->extradata_size) {
3535 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3536 nb_input_files - 1, st->index);
3539 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3540 filename = e->value;
3542 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3543 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3547 assert_file_overwrite(filename);
3549 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
3550 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3555 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3560 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
3562 AVFormatContext *ic;
3563 AVInputFormat *file_iformat = NULL;
3567 AVDictionary **opts;
3568 int orig_nb_streams; // number of streams before avformat_find_stream_info
3571 if (!(file_iformat = av_find_input_format(o->format))) {
3572 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
3577 if (!strcmp(filename, "-"))
3580 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3581 !strcmp(filename, "/dev/stdin");
3583 /* get default parameters from command line */
3584 ic = avformat_alloc_context();
3586 print_error(filename, AVERROR(ENOMEM));
3589 if (o->nb_audio_sample_rate) {
3590 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
3591 av_dict_set(&format_opts, "sample_rate", buf, 0);
3593 if (o->nb_audio_channels) {
3594 /* because we set audio_channels based on both the "ac" and
3595 * "channel_layout" options, we need to check that the specified
3596 * demuxer actually has the "channels" option before setting it */
3597 if (file_iformat && file_iformat->priv_class &&
3598 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
3599 AV_OPT_SEARCH_FAKE_OBJ)) {
3600 snprintf(buf, sizeof(buf), "%d",
3601 o->audio_channels[o->nb_audio_channels - 1].u.i);
3602 av_dict_set(&format_opts, "channels", buf, 0);
3605 if (o->nb_frame_rates) {
3606 /* set the format-level framerate option;
3607 * this is important for video grabbers, e.g. x11 */
3608 if (file_iformat && file_iformat->priv_class &&
3609 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
3610 AV_OPT_SEARCH_FAKE_OBJ)) {
3611 av_dict_set(&format_opts, "framerate",
3612 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
3615 if (o->nb_frame_sizes) {
3616 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
3618 if (o->nb_frame_pix_fmts)
3619 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
3621 ic->flags |= AVFMT_FLAG_NONBLOCK;
3622 ic->interrupt_callback = int_cb;
3624 /* open the input file with generic libav function */
3625 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3627 print_error(filename, err);
3630 assert_avoptions(format_opts);
3632 /* apply forced codec ids */
3633 for (i = 0; i < ic->nb_streams; i++)
3634 choose_decoder(o, ic, ic->streams[i]);
3636 /* Set AVCodecContext options for avformat_find_stream_info */
3637 opts = setup_find_stream_info_opts(ic, codec_opts);
3638 orig_nb_streams = ic->nb_streams;
3640 /* If not enough info to get the stream parameters, we decode the
3641 first frames to get it. (used in mpeg case for example) */
3642 ret = avformat_find_stream_info(ic, opts);
3644 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
3645 avformat_close_input(&ic);
3649 timestamp = o->start_time;
3650 /* add the stream start time */
3651 if (ic->start_time != AV_NOPTS_VALUE)
3652 timestamp += ic->start_time;
3654 /* if seeking requested, we execute it */
3655 if (o->start_time != 0) {
3656 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3658 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
3659 filename, (double)timestamp / AV_TIME_BASE);
3663 /* update the current parameters so that they match the one of the input stream */
3664 add_input_streams(o, ic);
3666 /* dump the file content */
3667 av_dump_format(ic, nb_input_files, filename, 0);
3669 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3670 if (!(input_files[nb_input_files - 1] = av_mallocz(sizeof(*input_files[0]))))
3673 input_files[nb_input_files - 1]->ctx = ic;
3674 input_files[nb_input_files - 1]->ist_index = nb_input_streams - ic->nb_streams;
3675 input_files[nb_input_files - 1]->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3676 input_files[nb_input_files - 1]->nb_streams = ic->nb_streams;
3677 input_files[nb_input_files - 1]->rate_emu = o->rate_emu;
3679 for (i = 0; i < o->nb_dump_attachment; i++) {
3682 for (j = 0; j < ic->nb_streams; j++) {
3683 AVStream *st = ic->streams[j];
3685 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3686 dump_attachment(st, o->dump_attachment[i].u.str);
3690 for (i = 0; i < orig_nb_streams; i++)
3691 av_dict_free(&opts[i]);
3698 static uint8_t *get_line(AVIOContext *s)
3704 if (avio_open_dyn_buf(&line) < 0) {
3705 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
3709 while ((c = avio_r8(s)) && c != '\n')
3712 avio_close_dyn_buf(line, &buf);
3717 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
3720 char filename[1000];
3721 const char *base[3] = { getenv("AVCONV_DATADIR"),
3726 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
3730 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
3731 i != 1 ? "" : "/.avconv", codec_name, preset_name);
3732 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3735 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
3736 i != 1 ? "" : "/.avconv", preset_name);
3737 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3743 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
3745 char *codec_name = NULL;
3747 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
3749 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
3750 NULL, ost->st->codec->codec_type);
3751 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
3752 } else if (!strcmp(codec_name, "copy"))
3753 ost->stream_copy = 1;
3755 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
3756 ost->st->codec->codec_id = ost->enc->id;
3760 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
3763 AVStream *st = avformat_new_stream(oc, NULL);
3764 int idx = oc->nb_streams - 1, ret = 0;
3765 char *bsf = NULL, *next, *codec_tag = NULL;
3766 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
3768 char *buf = NULL, *arg = NULL, *preset = NULL;
3769 AVIOContext *s = NULL;
3772 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
3776 if (oc->nb_streams - 1 < o->nb_streamid_map)
3777 st->id = o->streamid_map[oc->nb_streams - 1];
3779 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3780 nb_output_streams + 1);
3781 if (!(ost = av_mallocz(sizeof(*ost))))
3783 output_streams[nb_output_streams - 1] = ost;
3785 ost->file_index = nb_output_files;
3788 st->codec->codec_type = type;
3789 choose_encoder(o, oc, ost);
3791 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st, ost->enc);
3794 avcodec_get_context_defaults3(st->codec, ost->enc);
3795 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3797 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
3798 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
3801 if (!buf[0] || buf[0] == '#') {
3805 if (!(arg = strchr(buf, '='))) {
3806 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
3810 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
3812 } while (!s->eof_reached);
3816 av_log(NULL, AV_LOG_FATAL,
3817 "Preset %s specified for stream %d:%d, but could not be opened.\n",
3818 preset, ost->file_index, ost->index);
3822 ost->max_frames = INT64_MAX;
3823 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
3825 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
3827 if (next = strchr(bsf, ','))
3829 if (!(bsfc = av_bitstream_filter_init(bsf))) {
3830 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
3834 bsfc_prev->next = bsfc;
3836 ost->bitstream_filters = bsfc;
3842 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
3844 uint32_t tag = strtol(codec_tag, &next, 0);
3846 tag = AV_RL32(codec_tag);
3847 st->codec->codec_tag = tag;
3850 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
3851 if (qscale >= 0 || same_quant) {
3852 st->codec->flags |= CODEC_FLAG_QSCALE;
3853 st->codec->global_quality = FF_QP2LAMBDA * qscale;
3856 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
3857 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
3859 av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
3861 ost->pix_fmts[0] = ost->pix_fmts[1] = PIX_FMT_NONE;
3866 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3869 const char *p = str;
3876 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3883 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3887 AVCodecContext *video_enc;
3889 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3891 video_enc = st->codec;
3893 if (!ost->stream_copy) {
3894 const char *p = NULL;
3895 char *frame_rate = NULL, *frame_size = NULL;
3896 char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
3897 char *intra_matrix = NULL, *inter_matrix = NULL;
3898 const char *filters = "null";
3901 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
3902 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
3903 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
3907 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
3908 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
3909 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
3913 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
3914 if (frame_aspect_ratio)
3915 ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
3917 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
3918 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
3919 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
3922 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3924 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
3926 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
3927 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
3930 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
3932 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
3934 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
3935 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
3938 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
3941 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
3942 for (i = 0; p; i++) {
3944 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
3946 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
3949 video_enc->rc_override =
3950 av_realloc(video_enc->rc_override,
3951 sizeof(RcOverride) * (i + 1));
3952 video_enc->rc_override[i].start_frame = start;
3953 video_enc->rc_override[i].end_frame = end;
3955 video_enc->rc_override[i].qscale = q;
3956 video_enc->rc_override[i].quality_factor = 1.0;
3959 video_enc->rc_override[i].qscale = 0;
3960 video_enc->rc_override[i].quality_factor = -q/100.0;
3965 video_enc->rc_override_count = i;
3966 if (!video_enc->rc_initial_buffer_occupancy)
3967 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size * 3 / 4;
3968 video_enc->intra_dc_precision = intra_dc_precision - 8;
3973 video_enc->flags |= CODEC_FLAG_PASS1;
3975 video_enc->flags |= CODEC_FLAG_PASS2;
3979 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
3980 if (ost->forced_keyframes)
3981 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
3983 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
3985 ost->top_field_first = -1;
3986 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
3988 MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
3989 ost->avfilter = av_strdup(filters);
3991 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
3997 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
4001 AVCodecContext *audio_enc;
4003 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
4006 audio_enc = st->codec;
4007 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
4009 if (!ost->stream_copy) {
4010 char *sample_fmt = NULL;
4011 const char *filters = "anull";
4013 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
4015 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
4017 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
4018 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
4022 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
4024 MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
4025 ost->avfilter = av_strdup(filters);
4031 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
4035 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
4036 if (!ost->stream_copy) {
4037 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
4044 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
4046 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
4047 ost->stream_copy = 1;
4051 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
4055 AVCodecContext *subtitle_enc;
4057 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
4059 subtitle_enc = st->codec;
4061 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
4066 /* arg format is "output-stream-index:streamid-value". */
4067 static int opt_streamid(OptionsContext *o, const char *opt, const char *arg)
4073 av_strlcpy(idx_str, arg, sizeof(idx_str));
4074 p = strchr(idx_str, ':');
4076 av_log(NULL, AV_LOG_FATAL,
4077 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
4082 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
4083 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
4084 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
4088 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
4090 AVFormatContext *is = ifile->ctx;
4091 AVFormatContext *os = ofile->ctx;
4094 for (i = 0; i < is->nb_chapters; i++) {
4095 AVChapter *in_ch = is->chapters[i], *out_ch;
4096 int64_t ts_off = av_rescale_q(ofile->start_time - ifile->ts_offset,
4097 AV_TIME_BASE_Q, in_ch->time_base);
4098 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
4099 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
4102 if (in_ch->end < ts_off)
4104 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
4107 out_ch = av_mallocz(sizeof(AVChapter));
4109 return AVERROR(ENOMEM);
4111 out_ch->id = in_ch->id;
4112 out_ch->time_base = in_ch->time_base;
4113 out_ch->start = FFMAX(0, in_ch->start - ts_off);
4114 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
4117 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
4120 os->chapters = av_realloc(os->chapters, sizeof(AVChapter) * os->nb_chapters);
4122 return AVERROR(ENOMEM);
4123 os->chapters[os->nb_chapters - 1] = out_ch;
4128 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
4129 AVFormatContext *oc)
4133 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
4134 ofilter->out_tmp->pad_idx)) {
4135 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
4136 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
4138 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
4143 ost->source_index = -1;
4144 ost->filter = ofilter;
4148 if (ost->stream_copy) {
4149 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
4150 "which is fed from a complex filtergraph. Filtering and streamcopy "
4151 "cannot be used together.\n", ost->file_index, ost->index);
4155 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
4156 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
4159 avfilter_inout_free(&ofilter->out_tmp);
4162 static void opt_output_file(void *optctx, const char *filename)
4164 OptionsContext *o = optctx;
4165 AVFormatContext *oc;
4167 AVOutputFormat *file_oformat;
4171 if (configure_complex_filters() < 0) {
4172 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
4176 if (!strcmp(filename, "-"))
4179 oc = avformat_alloc_context();
4181 print_error(filename, AVERROR(ENOMEM));
4186 file_oformat = av_guess_format(o->format, NULL, NULL);
4187 if (!file_oformat) {
4188 av_log(NULL, AV_LOG_FATAL, "Requested output format '%s' is not a suitable output format\n", o->format);
4192 file_oformat = av_guess_format(NULL, filename, NULL);
4193 if (!file_oformat) {
4194 av_log(NULL, AV_LOG_FATAL, "Unable to find a suitable output format for '%s'\n",
4200 oc->oformat = file_oformat;
4201 oc->interrupt_callback = int_cb;
4202 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
4204 /* create streams for all unlabeled output pads */
4205 for (i = 0; i < nb_filtergraphs; i++) {
4206 FilterGraph *fg = filtergraphs[i];
4207 for (j = 0; j < fg->nb_outputs; j++) {
4208 OutputFilter *ofilter = fg->outputs[j];
4210 if (!ofilter->out_tmp || ofilter->out_tmp->name)
4213 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
4214 ofilter->out_tmp->pad_idx)) {
4215 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
4216 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
4217 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
4219 init_output_filter(ofilter, o, oc);
4223 if (!o->nb_stream_maps) {
4224 /* pick the "best" stream of each type */
4225 #define NEW_STREAM(type, index)\
4227 ost = new_ ## type ## _stream(o, oc);\
4228 ost->source_index = index;\
4229 ost->sync_ist = input_streams[index];\
4230 input_streams[index]->discard = 0;\
4231 input_streams[index]->st->discard = AVDISCARD_NONE;\
4234 /* video: highest resolution */
4235 if (!o->video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
4236 int area = 0, idx = -1;
4237 for (i = 0; i < nb_input_streams; i++) {
4238 ist = input_streams[i];
4239 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
4240 ist->st->codec->width * ist->st->codec->height > area) {
4241 area = ist->st->codec->width * ist->st->codec->height;
4245 NEW_STREAM(video, idx);
4248 /* audio: most channels */
4249 if (!o->audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
4250 int channels = 0, idx = -1;
4251 for (i = 0; i < nb_input_streams; i++) {
4252 ist = input_streams[i];
4253 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
4254 ist->st->codec->channels > channels) {
4255 channels = ist->st->codec->channels;
4259 NEW_STREAM(audio, idx);
4262 /* subtitles: pick first */
4263 if (!o->subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
4264 for (i = 0; i < nb_input_streams; i++)
4265 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4266 NEW_STREAM(subtitle, i);
4270 /* do something with data? */
4272 for (i = 0; i < o->nb_stream_maps; i++) {
4273 StreamMap *map = &o->stream_maps[i];
4278 if (map->linklabel) {
4280 OutputFilter *ofilter = NULL;
4283 for (j = 0; j < nb_filtergraphs; j++) {
4284 fg = filtergraphs[j];
4285 for (k = 0; k < fg->nb_outputs; k++) {
4286 AVFilterInOut *out = fg->outputs[k]->out_tmp;
4287 if (out && !strcmp(out->name, map->linklabel)) {
4288 ofilter = fg->outputs[k];
4295 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
4296 "in any defined filter graph.\n", map->linklabel);
4299 init_output_filter(ofilter, o, oc);
4301 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
4302 switch (ist->st->codec->codec_type) {
4303 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
4304 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
4305 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
4306 case AVMEDIA_TYPE_DATA: ost = new_data_stream(o, oc); break;
4307 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
4309 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
4310 map->file_index, map->stream_index);
4314 ost->source_index = input_files[map->file_index]->ist_index + map->stream_index;
4315 ost->sync_ist = input_streams[input_files[map->sync_file_index]->ist_index +
4316 map->sync_stream_index];
4318 ist->st->discard = AVDISCARD_NONE;
4323 /* handle attached files */
4324 for (i = 0; i < o->nb_attachments; i++) {
4326 uint8_t *attachment;
4330 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
4331 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
4335 if ((len = avio_size(pb)) <= 0) {
4336 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
4340 if (!(attachment = av_malloc(len))) {
4341 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
4345 avio_read(pb, attachment, len);
4347 ost = new_attachment_stream(o, oc);
4348 ost->stream_copy = 0;
4349 ost->source_index = -1;
4350 ost->attachment_filename = o->attachments[i];
4351 ost->st->codec->extradata = attachment;
4352 ost->st->codec->extradata_size = len;
4354 p = strrchr(o->attachments[i], '/');
4355 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
4359 output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
4360 if (!(output_files[nb_output_files - 1] = av_mallocz(sizeof(*output_files[0]))))
4363 output_files[nb_output_files - 1]->ctx = oc;
4364 output_files[nb_output_files - 1]->ost_index = nb_output_streams - oc->nb_streams;
4365 output_files[nb_output_files - 1]->recording_time = o->recording_time;
4366 if (o->recording_time != INT64_MAX)
4367 oc->duration = o->recording_time;
4368 output_files[nb_output_files - 1]->start_time = o->start_time;
4369 output_files[nb_output_files - 1]->limit_filesize = o->limit_filesize;
4370 av_dict_copy(&output_files[nb_output_files - 1]->opts, format_opts, 0);
4372 /* check filename in case of an image number is expected */
4373 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
4374 if (!av_filename_number_test(oc->filename)) {
4375 print_error(oc->filename, AVERROR(EINVAL));
4380 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
4381 /* test if it already exists to avoid losing precious files */
4382 assert_file_overwrite(filename);