2 * Copyright (c) 2000-2003 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * multimedia converter based on the FFmpeg libraries
37 #include "libavformat/avformat.h"
38 #include "libavdevice/avdevice.h"
39 #include "libswscale/swscale.h"
40 #include "libswresample/swresample.h"
41 #include "libavutil/opt.h"
42 #include "libavutil/audioconvert.h"
43 #include "libavutil/parseutils.h"
44 #include "libavutil/samplefmt.h"
45 #include "libavutil/colorspace.h"
46 #include "libavutil/fifo.h"
47 #include "libavutil/intreadwrite.h"
48 #include "libavutil/dict.h"
49 #include "libavutil/mathematics.h"
50 #include "libavutil/pixdesc.h"
51 #include "libavutil/avstring.h"
52 #include "libavutil/libm.h"
53 #include "libavutil/imgutils.h"
54 #include "libavutil/timestamp.h"
55 #include "libavutil/bprint.h"
56 #include "libavutil/time.h"
57 #include "libavformat/os_support.h"
59 #include "libavformat/ffm.h" // not public API
61 # include "libavfilter/avcodec.h"
62 # include "libavfilter/avfilter.h"
63 # include "libavfilter/avfiltergraph.h"
64 # include "libavfilter/buffersrc.h"
65 # include "libavfilter/buffersink.h"
67 #if HAVE_SYS_RESOURCE_H
68 #include <sys/types.h>
69 #include <sys/resource.h>
70 #elif HAVE_GETPROCESSTIMES
73 #if HAVE_GETPROCESSMEMORYINFO
79 #include <sys/select.h>
84 #include <sys/ioctl.h>
99 #include "libavutil/avassert.h"
101 #define VSYNC_AUTO -1
102 #define VSYNC_PASSTHROUGH 0
105 #define VSYNC_DROP 0xff
107 const char program_name[] = "ffmpeg";
108 const int program_birth_year = 2000;
110 /* select an input stream for an output stream */
111 typedef struct StreamMap {
112 int disabled; /** 1 is this mapping is disabled by a negative map */
116 int sync_stream_index;
117 char *linklabel; /** name of an output link, for mapping lavfi outputs */
121 int file_idx, stream_idx, channel_idx; // input
122 int ofile_idx, ostream_idx; // output
125 static const OptionDef options[];
127 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
129 static int frame_bits_per_raw_sample = 0;
130 static int video_discard = 0;
131 static int same_quant = 0;
132 static int do_deinterlace = 0;
133 static int intra_dc_precision = 8;
134 static int qp_hist = 0;
135 static int intra_only = 0;
136 static const char *video_codec_name = NULL;
137 static const char *audio_codec_name = NULL;
138 static const char *subtitle_codec_name = NULL;
140 static int file_overwrite = 0;
141 static int no_file_overwrite = 0;
142 static int do_benchmark = 0;
143 static int do_benchmark_all = 0;
144 static int do_hex_dump = 0;
145 static int do_pkt_dump = 0;
146 static int do_psnr = 0;
147 static int do_pass = 0;
148 static const char *pass_logfilename_prefix;
149 static int video_sync_method = VSYNC_AUTO;
150 static int audio_sync_method = 0;
151 static float audio_drift_threshold = 0.1;
152 static int copy_ts = 0;
153 static int copy_tb = -1;
154 static int opt_shortest = 0;
155 static char *vstats_filename;
156 static FILE *vstats_file;
158 static int audio_volume = 256;
160 static int exit_on_error = 0;
161 static int using_stdin = 0;
162 static int run_as_daemon = 0;
163 static volatile int received_nb_signals = 0;
164 static int64_t video_size = 0;
165 static int64_t audio_size = 0;
166 static int64_t subtitle_size = 0;
167 static int64_t extra_size = 0;
168 static int nb_frames_dup = 0;
169 static int nb_frames_drop = 0;
170 static int input_sync;
172 static float dts_delta_threshold = 10;
173 static float dts_error_threshold = 3600*30;
175 static int print_stats = 1;
176 static int debug_ts = 0;
177 static int current_time;
179 static uint8_t *subtitle_out;
182 /* signal to input threads that they should exit; set by the main thread */
183 static int transcoding_finished;
186 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
188 typedef struct InputFilter {
189 AVFilterContext *filter;
190 struct InputStream *ist;
191 struct FilterGraph *graph;
195 typedef struct OutputFilter {
196 AVFilterContext *filter;
197 struct OutputStream *ost;
198 struct FilterGraph *graph;
201 /* temporary storage until stream maps are processed */
202 AVFilterInOut *out_tmp;
205 typedef struct FilterGraph {
207 const char *graph_desc;
209 AVFilterGraph *graph;
211 InputFilter **inputs;
213 OutputFilter **outputs;
217 typedef struct InputStream {
220 int discard; /* true if stream data should be discarded */
221 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
223 AVFrame *decoded_frame;
225 int64_t start; /* time when read started */
226 /* predicted dts of the next packet read for this stream or (when there are
227 * several frames in a packet) of the next frame in current packet */
229 /* dts of the last packet read for this stream */
232 int64_t next_pts; /* synthetic pts for the next decode frame */
233 int64_t pts; /* current pts of the decoded frame */
235 int is_start; /* is 1 at the start and after a discontinuity */
237 int showed_multi_packet_warning;
239 AVRational framerate; /* framerate forced with -r */
244 int resample_pix_fmt;
246 int resample_sample_fmt;
247 int resample_sample_rate;
248 int resample_channels;
249 uint64_t resample_channel_layout;
251 /* a pool of free buffers for decoded data */
252 FrameBuffer *buffer_pool;
255 /* decoded data from this stream goes into all those filters
256 * currently video and audio only */
257 InputFilter **filters;
261 typedef struct InputFile {
262 AVFormatContext *ctx;
263 int eof_reached; /* true if eof reached */
264 int ist_index; /* index of first stream in input_streams */
266 int nb_streams; /* number of stream that ffmpeg is aware of; may be different
267 from ctx.nb_streams if new streams appear during av_read_frame() */
271 pthread_t thread; /* thread reading from this file */
272 int finished; /* the thread has exited */
273 int joined; /* the thread has been joined */
274 pthread_mutex_t fifo_lock; /* lock for access to fifo */
275 pthread_cond_t fifo_cond; /* the main thread will signal on this cond after reading from fifo */
276 AVFifoBuffer *fifo; /* demuxed packets are stored here; freed by the main thread */
280 typedef struct OutputStream {
281 int file_index; /* file index */
282 int index; /* stream index in the output file */
283 int source_index; /* InputStream index */
284 AVStream *st; /* stream in the output file */
285 int encoding_needed; /* true if encoding needed for this stream */
287 /* input pts and corresponding output pts
289 struct InputStream *sync_ist; /* input stream to sync against */
290 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
291 /* pts of the first frame encoded for this stream, used for limiting
294 AVBitStreamFilterContext *bitstream_filters;
297 AVFrame *filtered_frame;
300 AVRational frame_rate;
304 float frame_aspect_ratio;
307 /* forced key frames */
308 int64_t *forced_kf_pts;
311 char *forced_keyframes;
314 int audio_channels_map[SWR_CH_MAX]; /* list of the channels id to pick from the source stream */
315 int audio_channels_mapped; /* number of channels in audio_channels_map */
319 OutputFilter *filter;
323 int64_t swr_dither_method;
324 double swr_dither_scale;
326 int is_past_recording_time;
328 const char *attachment_filename;
329 int copy_initial_nonkeyframes;
337 /* init terminal so that we can grab keys */
338 static struct termios oldtty;
339 static int restore_tty;
342 typedef struct OutputFile {
343 AVFormatContext *ctx;
345 int ost_index; /* index of the first stream in output_streams */
346 int64_t recording_time; /* desired length of the resulting file in microseconds */
347 int64_t start_time; /* start time in microseconds */
348 uint64_t limit_filesize; /* filesize limit expressed in bytes */
351 static InputStream **input_streams = NULL;
352 static int nb_input_streams = 0;
353 static InputFile **input_files = NULL;
354 static int nb_input_files = 0;
356 static OutputStream **output_streams = NULL;
357 static int nb_output_streams = 0;
358 static OutputFile **output_files = NULL;
359 static int nb_output_files = 0;
361 static FilterGraph **filtergraphs;
364 typedef struct OptionsContext {
365 /* input/output options */
369 SpecifierOpt *codec_names;
371 SpecifierOpt *audio_channels;
372 int nb_audio_channels;
373 SpecifierOpt *audio_sample_rate;
374 int nb_audio_sample_rate;
375 SpecifierOpt *frame_rates;
377 SpecifierOpt *frame_sizes;
379 SpecifierOpt *frame_pix_fmts;
380 int nb_frame_pix_fmts;
383 int64_t input_ts_offset;
386 SpecifierOpt *ts_scale;
388 SpecifierOpt *dump_attachment;
389 int nb_dump_attachment;
392 StreamMap *stream_maps;
394 AudioChannelMap *audio_channel_maps; /* one info entry per -map_channel */
395 int nb_audio_channel_maps; /* number of (valid) -map_channel settings */
396 int metadata_global_manual;
397 int metadata_streams_manual;
398 int metadata_chapters_manual;
399 const char **attachments;
402 int chapters_input_file;
404 int64_t recording_time;
405 uint64_t limit_filesize;
411 int subtitle_disable;
414 /* indexed by output file stream index */
418 SpecifierOpt *metadata;
420 SpecifierOpt *max_frames;
422 SpecifierOpt *bitstream_filters;
423 int nb_bitstream_filters;
424 SpecifierOpt *codec_tags;
426 SpecifierOpt *sample_fmts;
428 SpecifierOpt *qscale;
430 SpecifierOpt *forced_key_frames;
431 int nb_forced_key_frames;
432 SpecifierOpt *force_fps;
434 SpecifierOpt *frame_aspect_ratios;
435 int nb_frame_aspect_ratios;
436 SpecifierOpt *rc_overrides;
438 SpecifierOpt *intra_matrices;
439 int nb_intra_matrices;
440 SpecifierOpt *inter_matrices;
441 int nb_inter_matrices;
442 SpecifierOpt *top_field_first;
443 int nb_top_field_first;
444 SpecifierOpt *metadata_map;
446 SpecifierOpt *presets;
448 SpecifierOpt *copy_initial_nonkeyframes;
449 int nb_copy_initial_nonkeyframes;
450 SpecifierOpt *filters;
454 static void do_video_stats(AVFormatContext *os, OutputStream *ost, int frame_size);
456 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
459 for (i = 0; i < o->nb_ ## name; i++) {\
460 char *spec = o->name[i].specifier;\
461 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
462 outvar = o->name[i].u.type;\
468 static int64_t getutime(void)
471 struct rusage rusage;
473 getrusage(RUSAGE_SELF, &rusage);
474 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
475 #elif HAVE_GETPROCESSTIMES
478 proc = GetCurrentProcess();
479 GetProcessTimes(proc, &c, &e, &k, &u);
480 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
486 static void update_benchmark(const char *fmt, ...)
488 if (do_benchmark_all) {
489 int64_t t = getutime();
495 vsnprintf(buf, sizeof(buf), fmt, va);
497 printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
503 static void reset_options(OptionsContext *o, int is_input)
505 const OptionDef *po = options;
506 OptionsContext bak= *o;
509 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
511 void *dst = (uint8_t*)o + po->u.off;
513 if (po->flags & OPT_SPEC) {
514 SpecifierOpt **so = dst;
515 int i, *count = (int*)(so + 1);
516 for (i = 0; i < *count; i++) {
517 av_freep(&(*so)[i].specifier);
518 if (po->flags & OPT_STRING)
519 av_freep(&(*so)[i].u.str);
523 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
528 for (i = 0; i < o->nb_stream_maps; i++)
529 av_freep(&o->stream_maps[i].linklabel);
530 av_freep(&o->stream_maps);
531 av_freep(&o->audio_channel_maps);
532 av_freep(&o->streamid_map);
534 memset(o, 0, sizeof(*o));
537 o->recording_time = bak.recording_time;
538 if (o->recording_time != INT64_MAX)
539 av_log(NULL, AV_LOG_WARNING,
540 "-t is not an input option, keeping it for the next output;"
541 " consider fixing your command line.\n");
543 o->recording_time = INT64_MAX;
544 o->mux_max_delay = 0.7;
545 o->limit_filesize = UINT64_MAX;
546 o->chapters_input_file = INT_MAX;
552 static enum PixelFormat choose_pixel_fmt(AVStream *st, AVCodec *codec, enum PixelFormat target)
554 if (codec && codec->pix_fmts) {
555 const enum PixelFormat *p = codec->pix_fmts;
556 int has_alpha= av_pix_fmt_descriptors[target].nb_components % 2 == 0;
557 enum PixelFormat best= PIX_FMT_NONE;
558 if (st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
559 if (st->codec->codec_id == CODEC_ID_MJPEG) {
560 p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE };
561 } else if (st->codec->codec_id == CODEC_ID_LJPEG) {
562 p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P,
563 PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE };
566 for (; *p != PIX_FMT_NONE; p++) {
567 best= avcodec_find_best_pix_fmt2(best, *p, target, has_alpha, NULL);
571 if (*p == PIX_FMT_NONE) {
572 if (target != PIX_FMT_NONE)
573 av_log(NULL, AV_LOG_WARNING,
574 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
575 av_pix_fmt_descriptors[target].name,
577 av_pix_fmt_descriptors[best].name);
584 static char *choose_pix_fmts(OutputStream *ost)
586 if (ost->keep_pix_fmt) {
588 avfilter_graph_set_auto_convert(ost->filter->graph->graph,
589 AVFILTER_AUTO_CONVERT_NONE);
590 if (ost->st->codec->pix_fmt == PIX_FMT_NONE)
592 return av_strdup(av_get_pix_fmt_name(ost->st->codec->pix_fmt));
594 if (ost->st->codec->pix_fmt != PIX_FMT_NONE) {
595 return av_strdup(av_get_pix_fmt_name(choose_pixel_fmt(ost->st, ost->enc, ost->st->codec->pix_fmt)));
596 } else if (ost->enc && ost->enc->pix_fmts) {
597 const enum PixelFormat *p;
598 AVIOContext *s = NULL;
602 if (avio_open_dyn_buf(&s) < 0)
605 p = ost->enc->pix_fmts;
606 if (ost->st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
607 if (ost->st->codec->codec_id == CODEC_ID_MJPEG) {
608 p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE };
609 } else if (ost->st->codec->codec_id == CODEC_ID_LJPEG) {
610 p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P,
611 PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE };
615 for (; *p != PIX_FMT_NONE; p++) {
616 const char *name = av_get_pix_fmt_name(*p);
617 avio_printf(s, "%s:", name);
619 len = avio_close_dyn_buf(s, &ret);
627 * Define a function for building a string containing a list of
630 #define DEF_CHOOSE_FORMAT(type, var, supported_list, none, get_name, separator) \
631 static char *choose_ ## var ## s(OutputStream *ost) \
633 if (ost->st->codec->var != none) { \
634 get_name(ost->st->codec->var); \
635 return av_strdup(name); \
636 } else if (ost->enc->supported_list) { \
638 AVIOContext *s = NULL; \
642 if (avio_open_dyn_buf(&s) < 0) \
645 for (p = ost->enc->supported_list; *p != none; p++) { \
647 avio_printf(s, "%s" separator, name); \
649 len = avio_close_dyn_buf(s, &ret); \
656 #define GET_PIX_FMT_NAME(pix_fmt)\
657 const char *name = av_get_pix_fmt_name(pix_fmt);
659 // DEF_CHOOSE_FORMAT(enum PixelFormat, pix_fmt, pix_fmts, PIX_FMT_NONE,
660 // GET_PIX_FMT_NAME, ":")
662 #define GET_SAMPLE_FMT_NAME(sample_fmt)\
663 const char *name = av_get_sample_fmt_name(sample_fmt)
665 DEF_CHOOSE_FORMAT(enum AVSampleFormat, sample_fmt, sample_fmts,
666 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME, ",")
668 #define GET_SAMPLE_RATE_NAME(rate)\
670 snprintf(name, sizeof(name), "%d", rate);
672 DEF_CHOOSE_FORMAT(int, sample_rate, supported_samplerates, 0,
673 GET_SAMPLE_RATE_NAME, ",")
675 #define GET_CH_LAYOUT_NAME(ch_layout)\
677 snprintf(name, sizeof(name), "0x%"PRIx64, ch_layout);
679 DEF_CHOOSE_FORMAT(uint64_t, channel_layout, channel_layouts, 0,
680 GET_CH_LAYOUT_NAME, ",")
682 static FilterGraph *init_simple_filtergraph(InputStream *ist, OutputStream *ost)
684 FilterGraph *fg = av_mallocz(sizeof(*fg));
688 fg->index = nb_filtergraphs;
690 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs), &fg->nb_outputs,
692 if (!(fg->outputs[0] = av_mallocz(sizeof(*fg->outputs[0]))))
694 fg->outputs[0]->ost = ost;
695 fg->outputs[0]->graph = fg;
697 ost->filter = fg->outputs[0];
699 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs), &fg->nb_inputs,
701 if (!(fg->inputs[0] = av_mallocz(sizeof(*fg->inputs[0]))))
703 fg->inputs[0]->ist = ist;
704 fg->inputs[0]->graph = fg;
706 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
707 &ist->nb_filters, ist->nb_filters + 1);
708 ist->filters[ist->nb_filters - 1] = fg->inputs[0];
710 filtergraphs = grow_array(filtergraphs, sizeof(*filtergraphs),
711 &nb_filtergraphs, nb_filtergraphs + 1);
712 filtergraphs[nb_filtergraphs - 1] = fg;
717 static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
719 InputStream *ist = NULL;
720 enum AVMediaType type = avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx);
723 // TODO: support other filter types
724 if (type != AVMEDIA_TYPE_VIDEO && type != AVMEDIA_TYPE_AUDIO) {
725 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters supported "
734 int file_idx = strtol(in->name, &p, 0);
736 if (file_idx < 0 || file_idx >= nb_input_files) {
737 av_log(NULL, AV_LOG_FATAL, "Invalid file index %d in filtergraph description %s.\n",
738 file_idx, fg->graph_desc);
741 s = input_files[file_idx]->ctx;
743 for (i = 0; i < s->nb_streams; i++) {
744 if (s->streams[i]->codec->codec_type != type)
746 if (check_stream_specifier(s, s->streams[i], *p == ':' ? p + 1 : p) == 1) {
752 av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
753 "matches no streams.\n", p, fg->graph_desc);
756 ist = input_streams[input_files[file_idx]->ist_index + st->index];
758 /* find the first unused stream of corresponding type */
759 for (i = 0; i < nb_input_streams; i++) {
760 ist = input_streams[i];
761 if (ist->st->codec->codec_type == type && ist->discard)
764 if (i == nb_input_streams) {
765 av_log(NULL, AV_LOG_FATAL, "Cannot find a matching stream for "
766 "unlabeled input pad %d on filter %s\n", in->pad_idx,
767 in->filter_ctx->name);
774 ist->decoding_needed = 1;
775 ist->st->discard = AVDISCARD_NONE;
777 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs),
778 &fg->nb_inputs, fg->nb_inputs + 1);
779 if (!(fg->inputs[fg->nb_inputs - 1] = av_mallocz(sizeof(*fg->inputs[0]))))
781 fg->inputs[fg->nb_inputs - 1]->ist = ist;
782 fg->inputs[fg->nb_inputs - 1]->graph = fg;
784 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
785 &ist->nb_filters, ist->nb_filters + 1);
786 ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
789 static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
792 OutputStream *ost = ofilter->ost;
793 AVCodecContext *codec = ost->st->codec;
794 AVFilterContext *last_filter = out->filter_ctx;
795 int pad_idx = out->pad_idx;
798 AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
800 snprintf(name, sizeof(name), "output stream %d:%d", ost->file_index, ost->index);
801 ret = avfilter_graph_create_filter(&ofilter->filter,
802 avfilter_get_by_name("buffersink"),
803 name, NULL, NULL/*buffersink_params*/, fg->graph);
804 av_freep(&buffersink_params);
809 if (codec->width || codec->height) {
811 AVFilterContext *filter;
813 snprintf(args, sizeof(args), "%d:%d:flags=0x%X",
816 (unsigned)ost->sws_flags);
817 snprintf(name, sizeof(name), "scaler for output stream %d:%d",
818 ost->file_index, ost->index);
819 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
820 name, args, NULL, fg->graph)) < 0)
822 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
825 last_filter = filter;
829 if ((pix_fmts = choose_pix_fmts(ost))) {
830 AVFilterContext *filter;
831 snprintf(name, sizeof(name), "pixel format for output stream %d:%d",
832 ost->file_index, ost->index);
833 if ((ret = avfilter_graph_create_filter(&filter,
834 avfilter_get_by_name("format"),
835 "format", pix_fmts, NULL,
838 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
841 last_filter = filter;
846 if (ost->frame_rate.num && 0) {
847 AVFilterContext *fps;
850 snprintf(args, sizeof(args), "fps=%d/%d", ost->frame_rate.num,
851 ost->frame_rate.den);
852 snprintf(name, sizeof(name), "fps for output stream %d:%d",
853 ost->file_index, ost->index);
854 ret = avfilter_graph_create_filter(&fps, avfilter_get_by_name("fps"),
855 name, args, NULL, fg->graph);
859 ret = avfilter_link(last_filter, pad_idx, fps, 0);
866 if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
872 static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
874 OutputStream *ost = ofilter->ost;
875 AVCodecContext *codec = ost->st->codec;
876 AVFilterContext *last_filter = out->filter_ctx;
877 int pad_idx = out->pad_idx;
878 char *sample_fmts, *sample_rates, *channel_layouts;
883 snprintf(name, sizeof(name), "output stream %d:%d", ost->file_index, ost->index);
884 ret = avfilter_graph_create_filter(&ofilter->filter,
885 avfilter_get_by_name("abuffersink"),
886 name, NULL, NULL, fg->graph);
890 #define AUTO_INSERT_FILTER(opt_name, filter_name, arg) do { \
891 AVFilterContext *filt_ctx; \
893 av_log(NULL, AV_LOG_INFO, opt_name " is forwarded to lavfi " \
894 "similarly to -af " filter_name "=%s.\n", arg); \
896 ret = avfilter_graph_create_filter(&filt_ctx, \
897 avfilter_get_by_name(filter_name), \
898 filter_name, arg, NULL, fg->graph); \
902 ret = avfilter_link(last_filter, pad_idx, filt_ctx, 0); \
906 last_filter = filt_ctx; \
909 if (ost->audio_channels_mapped) {
912 av_bprint_init(&pan_buf, 256, 8192);
913 av_bprintf(&pan_buf, "0x%"PRIx64,
914 av_get_default_channel_layout(ost->audio_channels_mapped));
915 for (i = 0; i < ost->audio_channels_mapped; i++)
916 if (ost->audio_channels_map[i] != -1)
917 av_bprintf(&pan_buf, ":c%d=c%d", i, ost->audio_channels_map[i]);
919 AUTO_INSERT_FILTER("-map_channel", "pan", pan_buf.str);
920 av_bprint_finalize(&pan_buf, NULL);
923 if (codec->channels && !codec->channel_layout)
924 codec->channel_layout = av_get_default_channel_layout(codec->channels);
926 sample_fmts = choose_sample_fmts(ost);
927 sample_rates = choose_sample_rates(ost);
928 channel_layouts = choose_channel_layouts(ost);
929 if (sample_fmts || sample_rates || channel_layouts) {
930 AVFilterContext *format;
935 len += snprintf(args + len, sizeof(args) - len, "sample_fmts=%s:",
938 len += snprintf(args + len, sizeof(args) - len, "sample_rates=%s:",
941 len += snprintf(args + len, sizeof(args) - len, "channel_layouts=%s:",
945 av_freep(&sample_fmts);
946 av_freep(&sample_rates);
947 av_freep(&channel_layouts);
949 snprintf(name, sizeof(name), "audio format for output stream %d:%d",
950 ost->file_index, ost->index);
951 ret = avfilter_graph_create_filter(&format,
952 avfilter_get_by_name("aformat"),
953 name, args, NULL, fg->graph);
957 ret = avfilter_link(last_filter, pad_idx, format, 0);
961 last_filter = format;
965 if (audio_volume != 256 && 0) {
968 snprintf(args, sizeof(args), "%f", audio_volume / 256.);
969 AUTO_INSERT_FILTER("-vol", "volume", args);
972 if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
978 #define DESCRIBE_FILTER_LINK(f, inout, in) \
980 AVFilterContext *ctx = inout->filter_ctx; \
981 AVFilterPad *pads = in ? ctx->input_pads : ctx->output_pads; \
982 int nb_pads = in ? ctx->input_count : ctx->output_count; \
985 if (avio_open_dyn_buf(&pb) < 0) \
988 avio_printf(pb, "%s", ctx->filter->name); \
990 avio_printf(pb, ":%s", avfilter_pad_get_name(pads, inout->pad_idx));\
992 avio_close_dyn_buf(pb, &f->name); \
995 static int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
997 av_freep(&ofilter->name);
998 DESCRIBE_FILTER_LINK(ofilter, out, 0);
1000 switch (avfilter_pad_get_type(out->filter_ctx->output_pads, out->pad_idx)) {
1001 case AVMEDIA_TYPE_VIDEO: return configure_output_video_filter(fg, ofilter, out);
1002 case AVMEDIA_TYPE_AUDIO: return configure_output_audio_filter(fg, ofilter, out);
1003 default: av_assert0(0);
1007 static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
1010 AVFilterContext *first_filter = in->filter_ctx;
1011 AVFilter *filter = avfilter_get_by_name("buffer");
1012 InputStream *ist = ifilter->ist;
1013 AVRational tb = ist->framerate.num ? (AVRational){ist->framerate.den,
1014 ist->framerate.num} :
1016 AVRational fr = ist->framerate.num ? ist->framerate :
1017 ist->st->r_frame_rate;
1021 int pad_idx = in->pad_idx;
1024 sar = ist->st->sample_aspect_ratio.num ?
1025 ist->st->sample_aspect_ratio :
1026 ist->st->codec->sample_aspect_ratio;
1028 sar = (AVRational){0,1};
1029 av_bprint_init(&args, 0, 1);
1031 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:"
1032 "pixel_aspect=%d/%d:sws_param=flags=%d", ist->st->codec->width,
1033 ist->st->codec->height, ist->st->codec->pix_fmt,
1034 tb.num, tb.den, sar.num, sar.den,
1035 SWS_BILINEAR + ((ist->st->codec->flags&CODEC_FLAG_BITEXACT) ? SWS_BITEXACT:0));
1036 if (fr.num && fr.den)
1037 av_bprintf(&args, ":frame_rate=%d/%d", fr.num, fr.den);
1038 snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
1039 ist->file_index, ist->st->index);
1041 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter, name,
1042 args.str, NULL, fg->graph)) < 0)
1045 if (ist->framerate.num) {
1046 AVFilterContext *setpts;
1048 snprintf(name, sizeof(name), "force CFR for input from stream %d:%d",
1049 ist->file_index, ist->st->index);
1050 if ((ret = avfilter_graph_create_filter(&setpts,
1051 avfilter_get_by_name("setpts"),
1056 if ((ret = avfilter_link(setpts, 0, first_filter, pad_idx)) < 0)
1059 first_filter = setpts;
1063 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
1068 static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
1071 AVFilterContext *first_filter = in->filter_ctx;
1072 AVFilter *filter = avfilter_get_by_name("abuffer");
1073 InputStream *ist = ifilter->ist;
1074 int pad_idx = in->pad_idx;
1075 char args[255], name[255];
1078 snprintf(args, sizeof(args), "time_base=%d/%d:sample_rate=%d:sample_fmt=%s"
1079 ":channel_layout=0x%"PRIx64,
1080 1, ist->st->codec->sample_rate,
1081 ist->st->codec->sample_rate,
1082 av_get_sample_fmt_name(ist->st->codec->sample_fmt),
1083 ist->st->codec->channel_layout);
1084 snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
1085 ist->file_index, ist->st->index);
1087 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter,
1092 #define AUTO_INSERT_FILTER_INPUT(opt_name, filter_name, arg) do { \
1093 AVFilterContext *filt_ctx; \
1095 av_log(NULL, AV_LOG_INFO, opt_name " is forwarded to lavfi " \
1096 "similarly to -af " filter_name "=%s.\n", arg); \
1098 snprintf(name, sizeof(name), "graph %d %s for input stream %d:%d", \
1099 fg->index, filter_name, ist->file_index, ist->st->index); \
1100 ret = avfilter_graph_create_filter(&filt_ctx, \
1101 avfilter_get_by_name(filter_name), \
1102 name, arg, NULL, fg->graph); \
1106 ret = avfilter_link(filt_ctx, 0, first_filter, pad_idx); \
1110 first_filter = filt_ctx; \
1113 if (audio_sync_method > 0) {
1114 char args[256] = {0};
1116 av_strlcatf(args, sizeof(args), "min_comp=0.001:min_hard_comp=%f", audio_drift_threshold);
1117 if (audio_sync_method > 1)
1118 av_strlcatf(args, sizeof(args), ":max_soft_comp=%f", audio_sync_method/(double)ist->st->codec->sample_rate);
1119 AUTO_INSERT_FILTER_INPUT("-async", "aresample", args);
1122 // if (ost->audio_channels_mapped) {
1124 // AVBPrint pan_buf;
1125 // av_bprint_init(&pan_buf, 256, 8192);
1126 // av_bprintf(&pan_buf, "0x%"PRIx64,
1127 // av_get_default_channel_layout(ost->audio_channels_mapped));
1128 // for (i = 0; i < ost->audio_channels_mapped; i++)
1129 // if (ost->audio_channels_map[i] != -1)
1130 // av_bprintf(&pan_buf, ":c%d=c%d", i, ost->audio_channels_map[i]);
1131 // AUTO_INSERT_FILTER_INPUT("-map_channel", "pan", pan_buf.str);
1132 // av_bprint_finalize(&pan_buf, NULL);
1135 if (audio_volume != 256) {
1138 snprintf(args, sizeof(args), "%f", audio_volume / 256.);
1139 AUTO_INSERT_FILTER_INPUT("-vol", "volume", args);
1141 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
1147 static int configure_input_filter(FilterGraph *fg, InputFilter *ifilter,
1150 av_freep(&ifilter->name);
1151 DESCRIBE_FILTER_LINK(ifilter, in, 1);
1153 switch (avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx)) {
1154 case AVMEDIA_TYPE_VIDEO: return configure_input_video_filter(fg, ifilter, in);
1155 case AVMEDIA_TYPE_AUDIO: return configure_input_audio_filter(fg, ifilter, in);
1156 default: av_assert0(0);
1160 static int configure_filtergraph(FilterGraph *fg)
1162 AVFilterInOut *inputs, *outputs, *cur;
1163 int ret, i, init = !fg->graph, simple = !fg->graph_desc;
1164 const char *graph_desc = simple ? fg->outputs[0]->ost->avfilter :
1167 avfilter_graph_free(&fg->graph);
1168 if (!(fg->graph = avfilter_graph_alloc()))
1169 return AVERROR(ENOMEM);
1172 OutputStream *ost = fg->outputs[0]->ost;
1174 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
1175 fg->graph->scale_sws_opts = av_strdup(args);
1178 if ((ret = avfilter_graph_parse2(fg->graph, graph_desc, &inputs, &outputs)) < 0)
1181 if (simple && (!inputs || inputs->next || !outputs || outputs->next)) {
1182 av_log(NULL, AV_LOG_ERROR, "Simple filtergraph '%s' does not have "
1183 "exactly one input and output.\n", graph_desc);
1184 return AVERROR(EINVAL);
1187 for (cur = inputs; !simple && init && cur; cur = cur->next)
1188 init_input_filter(fg, cur);
1190 for (cur = inputs, i = 0; cur; cur = cur->next, i++)
1191 if ((ret = configure_input_filter(fg, fg->inputs[i], cur)) < 0)
1193 avfilter_inout_free(&inputs);
1195 if (!init || simple) {
1196 /* we already know the mappings between lavfi outputs and output streams,
1197 * so we can finish the setup */
1198 for (cur = outputs, i = 0; cur; cur = cur->next, i++)
1199 configure_output_filter(fg, fg->outputs[i], cur);
1200 avfilter_inout_free(&outputs);
1202 if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
1205 /* wait until output mappings are processed */
1206 for (cur = outputs; cur;) {
1207 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs),
1208 &fg->nb_outputs, fg->nb_outputs + 1);
1209 if (!(fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]))))
1211 fg->outputs[fg->nb_outputs - 1]->graph = fg;
1212 fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
1214 fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
1221 static int configure_complex_filters(void)
1225 for (i = 0; i < nb_filtergraphs; i++)
1226 if (!filtergraphs[i]->graph &&
1227 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1232 static int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
1235 for (i = 0; i < fg->nb_inputs; i++)
1236 if (fg->inputs[i]->ist == ist)
1241 static void term_exit(void)
1243 av_log(NULL, AV_LOG_QUIET, "%s", "");
1246 tcsetattr (0, TCSANOW, &oldtty);
1250 static volatile int received_sigterm = 0;
1252 static void sigterm_handler(int sig)
1254 received_sigterm = sig;
1255 received_nb_signals++;
1257 if(received_nb_signals > 3)
1261 static void term_init(void)
1268 istty = isatty(0) && isatty(2);
1270 if (istty && tcgetattr (0, &tty) == 0) {
1275 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1276 |INLCR|IGNCR|ICRNL|IXON);
1277 tty.c_oflag |= OPOST;
1278 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
1279 tty.c_cflag &= ~(CSIZE|PARENB);
1282 tty.c_cc[VTIME] = 0;
1284 tcsetattr (0, TCSANOW, &tty);
1286 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
1289 avformat_network_deinit();
1291 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
1292 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
1294 signal(SIGXCPU, sigterm_handler);
1298 /* read a key without blocking */
1299 static int read_key(void)
1311 n = select(1, &rfds, NULL, NULL, &tv);
1313 n = read(0, &ch, 1);
1320 # if HAVE_PEEKNAMEDPIPE
1322 static HANDLE input_handle;
1325 input_handle = GetStdHandle(STD_INPUT_HANDLE);
1326 is_pipe = !GetConsoleMode(input_handle, &dw);
1329 if (stdin->_cnt > 0) {
1334 /* When running under a GUI, you will end here. */
1335 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL))
1352 static int decode_interrupt_cb(void *ctx)
1354 return received_nb_signals > 1;
1357 static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
1359 void av_noreturn exit_program(int ret)
1363 for (i = 0; i < nb_filtergraphs; i++) {
1364 avfilter_graph_free(&filtergraphs[i]->graph);
1365 for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
1366 av_freep(&filtergraphs[i]->inputs[j]->name);
1367 av_freep(&filtergraphs[i]->inputs[j]);
1369 av_freep(&filtergraphs[i]->inputs);
1370 for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
1371 av_freep(&filtergraphs[i]->outputs[j]->name);
1372 av_freep(&filtergraphs[i]->outputs[j]);
1374 av_freep(&filtergraphs[i]->outputs);
1375 av_freep(&filtergraphs[i]);
1377 av_freep(&filtergraphs);
1379 av_freep(&subtitle_out);
1382 for (i = 0; i < nb_output_files; i++) {
1383 AVFormatContext *s = output_files[i]->ctx;
1384 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
1386 avformat_free_context(s);
1387 av_dict_free(&output_files[i]->opts);
1388 av_freep(&output_files[i]);
1390 for (i = 0; i < nb_output_streams; i++) {
1391 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
1393 AVBitStreamFilterContext *next = bsfc->next;
1394 av_bitstream_filter_close(bsfc);
1397 output_streams[i]->bitstream_filters = NULL;
1399 av_freep(&output_streams[i]->forced_keyframes);
1400 av_freep(&output_streams[i]->filtered_frame);
1401 av_freep(&output_streams[i]->avfilter);
1402 av_freep(&output_streams[i]);
1404 for (i = 0; i < nb_input_files; i++) {
1405 avformat_close_input(&input_files[i]->ctx);
1406 av_freep(&input_files[i]);
1408 for (i = 0; i < nb_input_streams; i++) {
1409 av_freep(&input_streams[i]->decoded_frame);
1410 av_dict_free(&input_streams[i]->opts);
1411 free_buffer_pool(&input_streams[i]->buffer_pool);
1412 av_freep(&input_streams[i]->filters);
1413 av_freep(&input_streams[i]);
1417 fclose(vstats_file);
1418 av_free(vstats_filename);
1420 av_freep(&input_streams);
1421 av_freep(&input_files);
1422 av_freep(&output_streams);
1423 av_freep(&output_files);
1428 avformat_network_deinit();
1430 if (received_sigterm) {
1431 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
1432 (int) received_sigterm);
1439 static void assert_avoptions(AVDictionary *m)
1441 AVDictionaryEntry *t;
1442 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
1443 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
1448 static void assert_codec_experimental(AVCodecContext *c, int encoder)
1450 const char *codec_string = encoder ? "encoder" : "decoder";
1452 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
1453 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1454 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
1455 "results.\nAdd '-strict experimental' if you want to use it.\n",
1456 codec_string, c->codec->name);
1457 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
1458 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
1459 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
1460 codec_string, codec->name);
1465 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
1467 if (codec && codec->sample_fmts) {
1468 const enum AVSampleFormat *p = codec->sample_fmts;
1469 for (; *p != -1; p++) {
1470 if (*p == st->codec->sample_fmt)
1474 if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
1475 av_log(NULL, AV_LOG_ERROR, "Conversion will not be lossless.\n");
1476 if(av_get_sample_fmt_name(st->codec->sample_fmt))
1477 av_log(NULL, AV_LOG_WARNING,
1478 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
1479 av_get_sample_fmt_name(st->codec->sample_fmt),
1481 av_get_sample_fmt_name(codec->sample_fmts[0]));
1482 st->codec->sample_fmt = codec->sample_fmts[0];
1487 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
1489 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
1490 AVCodecContext *avctx = ost->st->codec;
1493 if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
1494 (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
1495 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
1497 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
1498 int64_t max = ost->st->cur_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
1499 if (ost->st->cur_dts && ost->st->cur_dts != AV_NOPTS_VALUE && max > pkt->dts) {
1500 av_log(s, max - pkt->dts > 2 ? AV_LOG_WARNING : AV_LOG_DEBUG, "Audio timestamp %"PRId64" < %"PRId64" invalid, cliping\n", pkt->dts, max);
1501 pkt->pts = pkt->dts = max;
1506 * Audio encoders may split the packets -- #frames in != #packets out.
1507 * But there is no reordering, so we can limit the number of output packets
1508 * by simply dropping them here.
1509 * Counting encoded video frames needs to be done separately because of
1510 * reordering, see do_video_out()
1512 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
1513 if (ost->frame_number >= ost->max_frames) {
1514 av_free_packet(pkt);
1517 ost->frame_number++;
1521 AVPacket new_pkt = *pkt;
1522 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
1523 &new_pkt.data, &new_pkt.size,
1524 pkt->data, pkt->size,
1525 pkt->flags & AV_PKT_FLAG_KEY);
1527 av_free_packet(pkt);
1528 new_pkt.destruct = av_destruct_packet;
1530 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
1531 bsfc->filter->name, pkt->stream_index,
1532 avctx->codec ? avctx->codec->name : "copy");
1542 pkt->stream_index = ost->index;
1543 ret = av_interleaved_write_frame(s, pkt);
1545 print_error("av_interleaved_write_frame()", ret);
1550 static int check_recording_time(OutputStream *ost)
1552 OutputFile *of = output_files[ost->file_index];
1554 if (of->recording_time != INT64_MAX &&
1555 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
1556 AV_TIME_BASE_Q) >= 0) {
1557 ost->is_past_recording_time = 1;
1563 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
1566 AVCodecContext *enc = ost->st->codec;
1570 av_init_packet(&pkt);
1574 if (!check_recording_time(ost))
1577 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
1578 frame->pts = ost->sync_opts;
1579 ost->sync_opts = frame->pts + frame->nb_samples;
1581 av_assert0(pkt.size || !pkt.data);
1582 update_benchmark(NULL);
1583 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
1584 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
1587 update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
1590 if (pkt.pts != AV_NOPTS_VALUE)
1591 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1592 if (pkt.dts != AV_NOPTS_VALUE)
1593 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1594 if (pkt.duration > 0)
1595 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1598 av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
1599 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1600 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
1601 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
1604 write_frame(s, &pkt, ost);
1606 audio_size += pkt.size;
1607 av_free_packet(&pkt);
1611 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1613 AVCodecContext *dec;
1614 AVPicture *picture2;
1615 AVPicture picture_tmp;
1618 dec = ist->st->codec;
1620 /* deinterlace : must be done before any resize */
1621 if (do_deinterlace) {
1624 /* create temporary picture */
1625 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1626 buf = av_malloc(size);
1630 picture2 = &picture_tmp;
1631 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1633 if (avpicture_deinterlace(picture2, picture,
1634 dec->pix_fmt, dec->width, dec->height) < 0) {
1635 /* if error, do not deinterlace */
1636 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
1645 if (picture != picture2)
1646 *picture = *picture2;
1650 static void do_subtitle_out(AVFormatContext *s,
1656 int subtitle_out_max_size = 1024 * 1024;
1657 int subtitle_out_size, nb, i;
1658 AVCodecContext *enc;
1661 if (pts == AV_NOPTS_VALUE) {
1662 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1668 enc = ost->st->codec;
1670 if (!subtitle_out) {
1671 subtitle_out = av_malloc(subtitle_out_max_size);
1674 /* Note: DVB subtitle need one packet to draw them and one other
1675 packet to clear them */
1676 /* XXX: signal it in the codec context ? */
1677 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1682 for (i = 0; i < nb; i++) {
1683 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
1684 if (!check_recording_time(ost))
1687 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1688 // start_display_time is required to be 0
1689 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1690 sub->end_display_time -= sub->start_display_time;
1691 sub->start_display_time = 0;
1692 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1693 subtitle_out_max_size, sub);
1694 if (subtitle_out_size < 0) {
1695 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1699 av_init_packet(&pkt);
1700 pkt.data = subtitle_out;
1701 pkt.size = subtitle_out_size;
1702 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1703 pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
1704 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1705 /* XXX: the pts correction is handled here. Maybe handling
1706 it in the codec would be better */
1708 pkt.pts += 90 * sub->start_display_time;
1710 pkt.pts += 90 * sub->end_display_time;
1712 write_frame(s, &pkt, ost);
1713 subtitle_size += pkt.size;
1717 static void do_video_out(AVFormatContext *s,
1719 AVFrame *in_picture,
1722 int ret, format_video_sync;
1724 AVCodecContext *enc = ost->st->codec;
1726 double sync_ipts, delta;
1727 double duration = 0;
1729 InputStream *ist = NULL;
1731 if (ost->source_index >= 0)
1732 ist = input_streams[ost->source_index];
1734 if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
1735 duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
1737 sync_ipts = in_picture->pts;
1738 delta = sync_ipts - ost->sync_opts + duration;
1740 /* by default, we output a single frame */
1743 format_video_sync = video_sync_method;
1744 if (format_video_sync == VSYNC_AUTO)
1745 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : 1;
1747 switch (format_video_sync) {
1749 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1752 else if (delta > 1.1)
1753 nb_frames = lrintf(delta);
1758 else if (delta > 0.6)
1759 ost->sync_opts = lrint(sync_ipts);
1762 case VSYNC_PASSTHROUGH:
1763 ost->sync_opts = lrint(sync_ipts);
1769 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1770 if (nb_frames == 0) {
1772 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1774 } else if (nb_frames > 1) {
1775 if (nb_frames > dts_error_threshold * 30) {
1776 av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skiping\n", nb_frames - 1);
1780 nb_frames_dup += nb_frames - 1;
1781 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
1786 av_init_packet(&pkt);
1790 in_picture->pts = ost->sync_opts;
1792 if (!check_recording_time(ost))
1795 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1796 enc->codec->id == CODEC_ID_RAWVIDEO) {
1797 /* raw pictures are written as AVPicture structure to
1798 avoid any copies. We support temporarily the older
1800 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1801 enc->coded_frame->top_field_first = in_picture->top_field_first;
1802 pkt.data = (uint8_t *)in_picture;
1803 pkt.size = sizeof(AVPicture);
1804 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
1805 pkt.flags |= AV_PKT_FLAG_KEY;
1807 write_frame(s, &pkt, ost);
1808 video_size += pkt.size;
1811 AVFrame big_picture;
1813 big_picture = *in_picture;
1814 /* better than nothing: use input picture interlaced
1816 big_picture.interlaced_frame = in_picture->interlaced_frame;
1817 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1818 if (ost->top_field_first == -1)
1819 big_picture.top_field_first = in_picture->top_field_first;
1821 big_picture.top_field_first = !!ost->top_field_first;
1824 /* handles same_quant here. This is not correct because it may
1825 not be a global option */
1826 big_picture.quality = quality;
1827 if (!enc->me_threshold)
1828 big_picture.pict_type = 0;
1829 if (ost->forced_kf_index < ost->forced_kf_count &&
1830 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1831 big_picture.pict_type = AV_PICTURE_TYPE_I;
1832 ost->forced_kf_index++;
1834 update_benchmark(NULL);
1835 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
1836 update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
1838 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1843 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
1844 pkt.pts = ost->sync_opts;
1846 if (pkt.pts != AV_NOPTS_VALUE)
1847 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1848 if (pkt.dts != AV_NOPTS_VALUE)
1849 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1852 av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
1853 "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
1854 av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
1855 av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
1858 write_frame(s, &pkt, ost);
1859 frame_size = pkt.size;
1860 video_size += pkt.size;
1861 av_free_packet(&pkt);
1863 /* if two pass, output log */
1864 if (ost->logfile && enc->stats_out) {
1865 fprintf(ost->logfile, "%s", enc->stats_out);
1871 * For video, number of frames in == number of packets out.
1872 * But there may be reordering, so we can't throw away frames on encoder
1873 * flush, we need to limit them here, before they go into encoder.
1875 ost->frame_number++;
1878 goto duplicate_frame;
1880 if (vstats_filename && frame_size)
1881 do_video_stats(output_files[ost->file_index]->ctx, ost, frame_size);
1884 static double psnr(double d)
1886 return -10.0 * log(d) / log(10.0);
1889 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1892 AVCodecContext *enc;
1894 double ti1, bitrate, avg_bitrate;
1896 /* this is executed just the first time do_video_stats is called */
1898 vstats_file = fopen(vstats_filename, "w");
1905 enc = ost->st->codec;
1906 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1907 frame_number = ost->frame_number;
1908 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1909 if (enc->flags&CODEC_FLAG_PSNR)
1910 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1912 fprintf(vstats_file,"f_size= %6d ", frame_size);
1913 /* compute pts value */
1914 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1918 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1919 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1920 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1921 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1922 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1926 /* check for new output on any of the filtergraphs */
1927 static int poll_filters(void)
1929 AVFilterBufferRef *picref;
1930 AVFrame *filtered_frame = NULL;
1931 int i, ret, ret_all;
1932 unsigned nb_success, nb_eof;
1936 /* Reap all buffers present in the buffer sinks */
1937 for (i = 0; i < nb_output_streams; i++) {
1938 OutputStream *ost = output_streams[i];
1939 OutputFile *of = output_files[ost->file_index];
1945 if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
1946 return AVERROR(ENOMEM);
1948 avcodec_get_frame_defaults(ost->filtered_frame);
1949 filtered_frame = ost->filtered_frame;
1952 ret = av_buffersink_get_buffer_ref(ost->filter->filter, &picref,
1953 AV_BUFFERSINK_FLAG_NO_REQUEST);
1955 if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
1957 av_strerror(ret, buf, sizeof(buf));
1958 av_log(NULL, AV_LOG_WARNING,
1959 "Error in av_buffersink_get_buffer_ref(): %s\n", buf);
1963 frame_pts = AV_NOPTS_VALUE;
1964 if (picref->pts != AV_NOPTS_VALUE) {
1965 filtered_frame->pts = frame_pts = av_rescale_q(picref->pts,
1966 ost->filter->filter->inputs[0]->time_base,
1967 ost->st->codec->time_base) -
1968 av_rescale_q(of->start_time,
1970 ost->st->codec->time_base);
1972 if (of->start_time && filtered_frame->pts < 0) {
1973 avfilter_unref_buffer(picref);
1977 //if (ost->source_index >= 0)
1978 // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
1981 switch (ost->filter->filter->inputs[0]->type) {
1982 case AVMEDIA_TYPE_VIDEO:
1983 avfilter_copy_buf_props(filtered_frame, picref);
1984 filtered_frame->pts = frame_pts;
1985 if (!ost->frame_aspect_ratio)
1986 ost->st->codec->sample_aspect_ratio = picref->video->sample_aspect_ratio;
1988 do_video_out(of->ctx, ost, filtered_frame,
1989 same_quant ? ost->last_quality :
1990 ost->st->codec->global_quality);
1992 case AVMEDIA_TYPE_AUDIO:
1993 avfilter_copy_buf_props(filtered_frame, picref);
1994 filtered_frame->pts = frame_pts;
1995 do_audio_out(of->ctx, ost, filtered_frame);
1998 // TODO support subtitle filters
2002 avfilter_unref_buffer(picref);
2005 /* Request frames through all the graphs */
2006 ret_all = nb_success = nb_eof = 0;
2007 for (i = 0; i < nb_filtergraphs; i++) {
2008 ret = avfilter_graph_request_oldest(filtergraphs[i]->graph);
2011 } else if (ret == AVERROR_EOF) {
2013 } else if (ret != AVERROR(EAGAIN)) {
2015 av_strerror(ret, buf, sizeof(buf));
2016 av_log(NULL, AV_LOG_WARNING,
2017 "Error in request_frame(): %s\n", buf);
2023 /* Try again if anything succeeded */
2025 return nb_eof == nb_filtergraphs ? AVERROR_EOF : ret_all;
2028 static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
2032 AVFormatContext *oc;
2034 AVCodecContext *enc;
2035 int frame_number, vid, i;
2037 int64_t pts = INT64_MAX;
2038 static int64_t last_time = -1;
2039 static int qp_histogram[52];
2040 int hours, mins, secs, us;
2042 if (!print_stats && !is_last_report)
2045 if (!is_last_report) {
2046 if (last_time == -1) {
2047 last_time = cur_time;
2050 if ((cur_time - last_time) < 500000)
2052 last_time = cur_time;
2056 oc = output_files[0]->ctx;
2058 total_size = avio_size(oc->pb);
2059 if (total_size < 0) { // FIXME improve avio_size() so it works with non seekable output too
2060 total_size = avio_tell(oc->pb);
2067 for (i = 0; i < nb_output_streams; i++) {
2069 ost = output_streams[i];
2070 enc = ost->st->codec;
2071 if (!ost->stream_copy && enc->coded_frame)
2072 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
2073 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2074 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
2076 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2077 float fps, t = (cur_time-timer_start) / 1000000.0;
2079 frame_number = ost->frame_number;
2080 fps = t > 1 ? frame_number / t : 0;
2081 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
2082 frame_number, fps < 9.95, fps, q);
2084 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
2088 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
2090 for (j = 0; j < 32; j++)
2091 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
2093 if (enc->flags&CODEC_FLAG_PSNR) {
2095 double error, error_sum = 0;
2096 double scale, scale_sum = 0;
2097 char type[3] = { 'Y','U','V' };
2098 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
2099 for (j = 0; j < 3; j++) {
2100 if (is_last_report) {
2101 error = enc->error[j];
2102 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
2104 error = enc->coded_frame->error[j];
2105 scale = enc->width * enc->height * 255.0 * 255.0;
2111 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
2113 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
2117 /* compute min output value */
2118 pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
2119 ost->st->time_base, AV_TIME_BASE_Q));
2122 secs = pts / AV_TIME_BASE;
2123 us = pts % AV_TIME_BASE;
2129 bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
2131 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
2132 "size=%8.0fkB time=", total_size / 1024.0);
2133 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
2134 "%02d:%02d:%02d.%02d ", hours, mins, secs,
2135 (100 * us) / AV_TIME_BASE);
2136 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
2137 "bitrate=%6.1fkbits/s", bitrate);
2139 if (nb_frames_dup || nb_frames_drop)
2140 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
2141 nb_frames_dup, nb_frames_drop);
2143 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
2147 if (is_last_report) {
2148 int64_t raw= audio_size + video_size + subtitle_size + extra_size;
2149 av_log(NULL, AV_LOG_INFO, "\n");
2150 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
2151 video_size / 1024.0,
2152 audio_size / 1024.0,
2153 subtitle_size / 1024.0,
2154 extra_size / 1024.0,
2155 100.0 * (total_size - raw) / raw
2157 if(video_size + audio_size + subtitle_size + extra_size == 0){
2158 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
2163 static void flush_encoders(void)
2167 for (i = 0; i < nb_output_streams; i++) {
2168 OutputStream *ost = output_streams[i];
2169 AVCodecContext *enc = ost->st->codec;
2170 AVFormatContext *os = output_files[ost->file_index]->ctx;
2171 int stop_encoding = 0;
2173 if (!ost->encoding_needed)
2176 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
2178 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
2182 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
2186 switch (ost->st->codec->codec_type) {
2187 case AVMEDIA_TYPE_AUDIO:
2188 encode = avcodec_encode_audio2;
2192 case AVMEDIA_TYPE_VIDEO:
2193 encode = avcodec_encode_video2;
2204 av_init_packet(&pkt);
2208 update_benchmark(NULL);
2209 ret = encode(enc, &pkt, NULL, &got_packet);
2210 update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
2212 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
2216 if (ost->logfile && enc->stats_out) {
2217 fprintf(ost->logfile, "%s", enc->stats_out);
2223 if (pkt.pts != AV_NOPTS_VALUE)
2224 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
2225 if (pkt.dts != AV_NOPTS_VALUE)
2226 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
2227 write_frame(os, &pkt, ost);
2237 * Check whether a packet from ist should be written into ost at this time
2239 static int check_output_constraints(InputStream *ist, OutputStream *ost)
2241 OutputFile *of = output_files[ost->file_index];
2242 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
2244 if (ost->source_index != ist_index)
2247 if (of->start_time && ist->pts < of->start_time)
2253 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
2255 OutputFile *of = output_files[ost->file_index];
2256 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
2260 av_init_packet(&opkt);
2262 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
2263 !ost->copy_initial_nonkeyframes)
2266 if (of->recording_time != INT64_MAX &&
2267 ist->pts >= of->recording_time + of->start_time) {
2268 ost->is_past_recording_time = 1;
2272 /* force the input stream PTS */
2273 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
2274 audio_size += pkt->size;
2275 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2276 video_size += pkt->size;
2278 } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2279 subtitle_size += pkt->size;
2282 if (pkt->pts != AV_NOPTS_VALUE)
2283 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
2285 opkt.pts = AV_NOPTS_VALUE;
2287 if (pkt->dts == AV_NOPTS_VALUE)
2288 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
2290 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
2291 opkt.dts -= ost_tb_start_time;
2293 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
2294 opkt.flags = pkt->flags;
2296 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
2297 if ( ost->st->codec->codec_id != CODEC_ID_H264
2298 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
2299 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
2300 && ost->st->codec->codec_id != CODEC_ID_VC1
2302 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
2303 opkt.destruct = av_destruct_packet;
2305 opkt.data = pkt->data;
2306 opkt.size = pkt->size;
2308 if (of->ctx->oformat->flags & AVFMT_RAWPICTURE) {
2309 /* store AVPicture in AVPacket, as expected by the output format */
2310 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
2311 opkt.data = (uint8_t *)&pict;
2312 opkt.size = sizeof(AVPicture);
2313 opkt.flags |= AV_PKT_FLAG_KEY;
2316 write_frame(of->ctx, &opkt, ost);
2317 ost->st->codec->frame_number++;
2318 av_free_packet(&opkt);
2321 static void rate_emu_sleep(InputStream *ist)
2323 if (input_files[ist->file_index]->rate_emu) {
2324 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
2325 int64_t now = av_gettime() - ist->start;
2327 av_usleep(pts - now);
2331 static int guess_input_channel_layout(InputStream *ist)
2333 AVCodecContext *dec = ist->st->codec;
2335 if (!dec->channel_layout) {
2336 char layout_name[256];
2338 dec->channel_layout = av_get_default_channel_layout(dec->channels);
2339 if (!dec->channel_layout)
2341 av_get_channel_layout_string(layout_name, sizeof(layout_name),
2342 dec->channels, dec->channel_layout);
2343 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
2344 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
2349 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
2351 AVFrame *decoded_frame;
2352 AVCodecContext *avctx = ist->st->codec;
2353 int i, ret, resample_changed;
2355 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
2356 return AVERROR(ENOMEM);
2358 avcodec_get_frame_defaults(ist->decoded_frame);
2359 decoded_frame = ist->decoded_frame;
2361 update_benchmark(NULL);
2362 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
2363 update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
2367 if (avctx->sample_rate <= 0) {
2368 av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
2369 return AVERROR_INVALIDDATA;
2373 /* no audio frame */
2375 for (i = 0; i < ist->nb_filters; i++)
2376 av_buffersrc_add_ref(ist->filters[i]->filter, NULL,
2377 AV_BUFFERSRC_FLAG_NO_COPY);
2381 /* if the decoder provides a pts, use it instead of the last packet pts.
2382 the decoder could be delaying output by a packet or more. */
2383 if (decoded_frame->pts != AV_NOPTS_VALUE)
2384 ist->dts = ist->next_dts = ist->pts = ist->next_pts = decoded_frame->pts;
2385 else if (pkt->pts != AV_NOPTS_VALUE) {
2386 decoded_frame->pts = pkt->pts;
2387 pkt->pts = AV_NOPTS_VALUE;
2389 decoded_frame->pts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
2393 /* increment next_dts to use for the case where the input stream does not
2394 have timestamps or there are multiple frames in the packet */
2395 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
2397 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
2401 rate_emu_sleep(ist);
2403 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
2404 ist->resample_channels != avctx->channels ||
2405 ist->resample_channel_layout != decoded_frame->channel_layout ||
2406 ist->resample_sample_rate != decoded_frame->sample_rate;
2407 if (resample_changed) {
2408 char layout1[64], layout2[64];
2410 if (!guess_input_channel_layout(ist)) {
2411 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
2412 "layout for Input Stream #%d.%d\n", ist->file_index,
2416 decoded_frame->channel_layout = avctx->channel_layout;
2418 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
2419 ist->resample_channel_layout);
2420 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
2421 decoded_frame->channel_layout);
2423 av_log(NULL, AV_LOG_INFO,
2424 "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",
2425 ist->file_index, ist->st->index,
2426 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
2427 ist->resample_channels, layout1,
2428 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
2429 avctx->channels, layout2);
2431 ist->resample_sample_fmt = decoded_frame->format;
2432 ist->resample_sample_rate = decoded_frame->sample_rate;
2433 ist->resample_channel_layout = decoded_frame->channel_layout;
2434 ist->resample_channels = avctx->channels;
2436 for (i = 0; i < nb_filtergraphs; i++)
2437 if (ist_in_filtergraph(filtergraphs[i], ist)) {
2438 FilterGraph *fg = filtergraphs[i];
2440 if (configure_filtergraph(fg) < 0) {
2441 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2444 for (j = 0; j < fg->nb_outputs; j++) {
2445 OutputStream *ost = fg->outputs[j]->ost;
2446 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
2447 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
2448 av_buffersink_set_frame_size(ost->filter->filter,
2449 ost->st->codec->frame_size);
2454 if (decoded_frame->pts != AV_NOPTS_VALUE)
2455 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
2457 (AVRational){1, ist->st->codec->sample_rate});
2458 for (i = 0; i < ist->nb_filters; i++)
2459 av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame, 0);
2464 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
2466 AVFrame *decoded_frame;
2467 void *buffer_to_free = NULL;
2468 int i, ret = 0, resample_changed;
2469 int64_t best_effort_timestamp;
2470 AVRational *frame_sample_aspect;
2473 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
2474 return AVERROR(ENOMEM);
2476 avcodec_get_frame_defaults(ist->decoded_frame);
2477 decoded_frame = ist->decoded_frame;
2478 pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
2480 update_benchmark(NULL);
2481 ret = avcodec_decode_video2(ist->st->codec,
2482 decoded_frame, got_output, pkt);
2483 update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
2487 quality = same_quant ? decoded_frame->quality : 0;
2489 /* no picture yet */
2491 for (i = 0; i < ist->nb_filters; i++)
2492 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, AV_BUFFERSRC_FLAG_NO_COPY);
2496 if(ist->top_field_first>=0)
2497 decoded_frame->top_field_first = ist->top_field_first;
2499 best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
2500 if(best_effort_timestamp != AV_NOPTS_VALUE)
2501 ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
2504 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
2506 rate_emu_sleep(ist);
2508 if (ist->st->sample_aspect_ratio.num)
2509 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
2511 resample_changed = ist->resample_width != decoded_frame->width ||
2512 ist->resample_height != decoded_frame->height ||
2513 ist->resample_pix_fmt != decoded_frame->format;
2514 if (resample_changed) {
2515 av_log(NULL, AV_LOG_INFO,
2516 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
2517 ist->file_index, ist->st->index,
2518 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
2519 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
2521 ist->resample_width = decoded_frame->width;
2522 ist->resample_height = decoded_frame->height;
2523 ist->resample_pix_fmt = decoded_frame->format;
2525 for (i = 0; i < nb_filtergraphs; i++)
2526 if (ist_in_filtergraph(filtergraphs[i], ist) &&
2527 configure_filtergraph(filtergraphs[i]) < 0) {
2528 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
2533 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
2534 for (i = 0; i < ist->nb_filters; i++) {
2535 int changed = ist->st->codec->width != ist->filters[i]->filter->outputs[0]->w
2536 || ist->st->codec->height != ist->filters[i]->filter->outputs[0]->h
2537 || ist->st->codec->pix_fmt != ist->filters[i]->filter->outputs[0]->format;
2538 // XXX what an ugly hack
2539 if (ist->filters[i]->graph->nb_outputs == 1)
2540 ist->filters[i]->graph->outputs[0]->ost->last_quality = quality;
2542 if (!frame_sample_aspect->num)
2543 *frame_sample_aspect = ist->st->sample_aspect_ratio;
2544 if (ist->dr1 && decoded_frame->type==FF_BUFFER_TYPE_USER && !changed) {
2545 FrameBuffer *buf = decoded_frame->opaque;
2546 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
2547 decoded_frame->data, decoded_frame->linesize,
2548 AV_PERM_READ | AV_PERM_PRESERVE,
2549 ist->st->codec->width, ist->st->codec->height,
2550 ist->st->codec->pix_fmt);
2552 avfilter_copy_frame_props(fb, decoded_frame);
2553 fb->buf->priv = buf;
2554 fb->buf->free = filter_release_buffer;
2556 av_assert0(buf->refcount>0);
2558 av_buffersrc_add_ref(ist->filters[i]->filter, fb,
2559 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
2560 AV_BUFFERSRC_FLAG_NO_COPY);
2562 if(av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame, 0)<0) {
2563 av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
2569 av_free(buffer_to_free);
2573 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
2575 AVSubtitle subtitle;
2576 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
2577 &subtitle, got_output, pkt);
2583 rate_emu_sleep(ist);
2585 for (i = 0; i < nb_output_streams; i++) {
2586 OutputStream *ost = output_streams[i];
2588 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2591 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
2594 avsubtitle_free(&subtitle);
2598 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2599 static int output_packet(InputStream *ist, const AVPacket *pkt)
2605 if (!ist->saw_first_ts) {
2606 ist->dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
2608 if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
2609 ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2610 ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
2612 ist->saw_first_ts = 1;
2615 if (ist->next_dts == AV_NOPTS_VALUE)
2616 ist->next_dts = ist->dts;
2617 if (ist->next_pts == AV_NOPTS_VALUE)
2618 ist->next_pts = ist->pts;
2622 av_init_packet(&avpkt);
2630 if (pkt->dts != AV_NOPTS_VALUE) {
2631 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2632 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
2633 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2636 // while we have more to decode or while the decoder did output something on EOF
2637 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2641 ist->pts = ist->next_pts;
2642 ist->dts = ist->next_dts;
2644 if (avpkt.size && avpkt.size != pkt->size) {
2645 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2646 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2647 ist->showed_multi_packet_warning = 1;
2650 switch (ist->st->codec->codec_type) {
2651 case AVMEDIA_TYPE_AUDIO:
2652 ret = decode_audio (ist, &avpkt, &got_output);
2654 case AVMEDIA_TYPE_VIDEO:
2655 ret = decode_video (ist, &avpkt, &got_output);
2656 if (avpkt.duration) {
2657 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
2658 } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
2659 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
2660 duration = ((int64_t)AV_TIME_BASE *
2661 ist->st->codec->time_base.num * ticks) /
2662 ist->st->codec->time_base.den;
2666 if(ist->dts != AV_NOPTS_VALUE && duration) {
2667 ist->next_dts += duration;
2669 ist->next_dts = AV_NOPTS_VALUE;
2672 ist->next_pts += duration; //FIXME the duration is not correct in some cases
2674 case AVMEDIA_TYPE_SUBTITLE:
2675 ret = transcode_subtitles(ist, &avpkt, &got_output);
2685 avpkt.pts= AV_NOPTS_VALUE;
2687 // touch data and size only if not EOF
2689 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
2699 /* handle stream copy */
2700 if (!ist->decoding_needed) {
2701 rate_emu_sleep(ist);
2702 ist->dts = ist->next_dts;
2703 switch (ist->st->codec->codec_type) {
2704 case AVMEDIA_TYPE_AUDIO:
2705 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2706 ist->st->codec->sample_rate;
2708 case AVMEDIA_TYPE_VIDEO:
2709 if (pkt->duration) {
2710 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
2711 } else if(ist->st->codec->time_base.num != 0) {
2712 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
2713 ist->next_dts += ((int64_t)AV_TIME_BASE *
2714 ist->st->codec->time_base.num * ticks) /
2715 ist->st->codec->time_base.den;
2719 ist->pts = ist->dts;
2720 ist->next_pts = ist->next_dts;
2722 for (i = 0; pkt && i < nb_output_streams; i++) {
2723 OutputStream *ost = output_streams[i];
2725 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2728 do_streamcopy(ist, ost, pkt);
2734 static void print_sdp(void)
2738 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
2742 for (i = 0; i < nb_output_files; i++)
2743 avc[i] = output_files[i]->ctx;
2745 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
2746 printf("SDP:\n%s\n", sdp);
2751 static int init_input_stream(int ist_index, char *error, int error_len)
2753 InputStream *ist = input_streams[ist_index];
2755 if (ist->decoding_needed) {
2756 AVCodec *codec = ist->dec;
2758 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
2759 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
2760 return AVERROR(EINVAL);
2763 ist->dr1 = (codec->capabilities & CODEC_CAP_DR1) && !do_deinterlace;
2764 if (codec->type == AVMEDIA_TYPE_VIDEO && ist->dr1) {
2765 ist->st->codec->get_buffer = codec_get_buffer;
2766 ist->st->codec->release_buffer = codec_release_buffer;
2767 ist->st->codec->opaque = &ist->buffer_pool;
2770 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2771 av_dict_set(&ist->opts, "threads", "auto", 0);
2772 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2773 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
2774 ist->file_index, ist->st->index);
2775 return AVERROR(EINVAL);
2777 assert_codec_experimental(ist->st->codec, 0);
2778 assert_avoptions(ist->opts);
2781 ist->next_pts = AV_NOPTS_VALUE;
2782 ist->next_dts = AV_NOPTS_VALUE;
2788 static InputStream *get_input_stream(OutputStream *ost)
2790 if (ost->source_index >= 0)
2791 return input_streams[ost->source_index];
2795 static void parse_forced_key_frames(char *kf, OutputStream *ost,
2796 AVCodecContext *avctx)
2802 for (p = kf; *p; p++)
2805 ost->forced_kf_count = n;
2806 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
2807 if (!ost->forced_kf_pts) {
2808 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
2813 for (i = 0; i < n; i++) {
2814 char *next = strchr(p, ',');
2819 t = parse_time_or_die("force_key_frames", p, 1);
2820 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
2826 static int transcode_init(void)
2828 int ret = 0, i, j, k;
2829 AVFormatContext *oc;
2830 AVCodecContext *codec, *icodec = NULL;
2836 /* init framerate emulation */
2837 for (i = 0; i < nb_input_files; i++) {
2838 InputFile *ifile = input_files[i];
2839 if (ifile->rate_emu)
2840 for (j = 0; j < ifile->nb_streams; j++)
2841 input_streams[j + ifile->ist_index]->start = av_gettime();
2844 /* output stream init */
2845 for (i = 0; i < nb_output_files; i++) {
2846 oc = output_files[i]->ctx;
2847 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2848 av_dump_format(oc, i, oc->filename, 1);
2849 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2850 return AVERROR(EINVAL);
2854 /* init complex filtergraphs */
2855 for (i = 0; i < nb_filtergraphs; i++)
2856 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
2859 /* for each output stream, we compute the right encoding parameters */
2860 for (i = 0; i < nb_output_streams; i++) {
2861 ost = output_streams[i];
2862 oc = output_files[ost->file_index]->ctx;
2863 ist = get_input_stream(ost);
2865 if (ost->attachment_filename)
2868 codec = ost->st->codec;
2871 icodec = ist->st->codec;
2873 ost->st->disposition = ist->st->disposition;
2874 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2875 codec->chroma_sample_location = icodec->chroma_sample_location;
2878 if (ost->stream_copy) {
2879 uint64_t extra_size;
2881 av_assert0(ist && !ost->filter);
2883 extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2885 if (extra_size > INT_MAX) {
2886 return AVERROR(EINVAL);
2889 /* if stream_copy is selected, no need to decode or encode */
2890 codec->codec_id = icodec->codec_id;
2891 codec->codec_type = icodec->codec_type;
2893 if (!codec->codec_tag) {
2894 if (!oc->oformat->codec_tag ||
2895 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2896 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2897 codec->codec_tag = icodec->codec_tag;
2900 codec->bit_rate = icodec->bit_rate;
2901 codec->rc_max_rate = icodec->rc_max_rate;
2902 codec->rc_buffer_size = icodec->rc_buffer_size;
2903 codec->field_order = icodec->field_order;
2904 codec->extradata = av_mallocz(extra_size);
2905 if (!codec->extradata) {
2906 return AVERROR(ENOMEM);
2908 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2909 codec->extradata_size= icodec->extradata_size;
2910 codec->bits_per_coded_sample = icodec->bits_per_coded_sample;
2912 codec->time_base = ist->st->time_base;
2914 * Avi is a special case here because it supports variable fps but
2915 * having the fps and timebase differe significantly adds quite some
2918 if(!strcmp(oc->oformat->name, "avi")) {
2919 if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2920 && av_q2d(ist->st->time_base) < 1.0/500
2922 codec->time_base = icodec->time_base;
2923 codec->time_base.num *= icodec->ticks_per_frame;
2924 codec->time_base.den *= 2;
2925 codec->ticks_per_frame = 2;
2927 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2928 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2929 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2931 if( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2932 && av_q2d(ist->st->time_base) < 1.0/500
2934 codec->time_base = icodec->time_base;
2935 codec->time_base.num *= icodec->ticks_per_frame;
2939 if(ost->frame_rate.num)
2940 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2942 av_reduce(&codec->time_base.num, &codec->time_base.den,
2943 codec->time_base.num, codec->time_base.den, INT_MAX);
2945 switch (codec->codec_type) {
2946 case AVMEDIA_TYPE_AUDIO:
2947 if (audio_volume != 256) {
2948 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2951 codec->channel_layout = icodec->channel_layout;
2952 codec->sample_rate = icodec->sample_rate;
2953 codec->channels = icodec->channels;
2954 codec->frame_size = icodec->frame_size;
2955 codec->audio_service_type = icodec->audio_service_type;
2956 codec->block_align = icodec->block_align;
2957 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2958 codec->block_align= 0;
2959 if(codec->codec_id == CODEC_ID_AC3)
2960 codec->block_align= 0;
2962 case AVMEDIA_TYPE_VIDEO:
2963 codec->pix_fmt = icodec->pix_fmt;
2964 codec->width = icodec->width;
2965 codec->height = icodec->height;
2966 codec->has_b_frames = icodec->has_b_frames;
2967 if (!codec->sample_aspect_ratio.num) {
2968 codec->sample_aspect_ratio =
2969 ost->st->sample_aspect_ratio =
2970 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2971 ist->st->codec->sample_aspect_ratio.num ?
2972 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2974 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2976 case AVMEDIA_TYPE_SUBTITLE:
2977 codec->width = icodec->width;
2978 codec->height = icodec->height;
2980 case AVMEDIA_TYPE_DATA:
2981 case AVMEDIA_TYPE_ATTACHMENT:
2988 ost->enc = avcodec_find_encoder(codec->codec_id);
2990 /* should only happen when a default codec is not present. */
2991 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2992 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2993 ret = AVERROR(EINVAL);
2998 ist->decoding_needed = 1;
2999 ost->encoding_needed = 1;
3001 if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3002 if (ost->filter && !ost->frame_rate.num)
3003 ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
3004 if (ist && !ost->frame_rate.num)
3005 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
3006 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
3007 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
3008 ost->frame_rate = ost->enc->supported_framerates[idx];
3013 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3014 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
3016 fg = init_simple_filtergraph(ist, ost);
3017 if (configure_filtergraph(fg)) {
3018 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
3023 switch (codec->codec_type) {
3024 case AVMEDIA_TYPE_AUDIO:
3025 codec->sample_fmt = ost->filter->filter->inputs[0]->format;
3026 codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
3027 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
3028 codec->channels = av_get_channel_layout_nb_channels(codec->channel_layout);
3029 codec->time_base = (AVRational){ 1, codec->sample_rate };
3031 case AVMEDIA_TYPE_VIDEO:
3032 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
3033 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
3034 codec->time_base = ost->filter->filter->inputs[0]->time_base;
3035 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
3036 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
3037 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
3038 "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
3040 for (j = 0; j < ost->forced_kf_count; j++)
3041 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
3045 codec->width = ost->filter->filter->inputs[0]->w;
3046 codec->height = ost->filter->filter->inputs[0]->h;
3047 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
3048 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
3049 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
3050 ost->filter->filter->inputs[0]->sample_aspect_ratio;
3051 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
3054 codec->width != icodec->width ||
3055 codec->height != icodec->height ||
3056 codec->pix_fmt != icodec->pix_fmt) {
3057 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
3060 if (ost->forced_keyframes)
3061 parse_forced_key_frames(ost->forced_keyframes, ost,
3064 case AVMEDIA_TYPE_SUBTITLE:
3065 codec->time_base = (AVRational){1, 1000};
3072 if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
3073 char logfilename[1024];
3076 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
3077 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
3079 if (!strcmp(ost->enc->name, "libx264")) {
3080 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
3082 if (codec->flags & CODEC_FLAG_PASS2) {
3084 size_t logbuffer_size;
3085 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
3086 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
3090 codec->stats_in = logbuffer;
3092 if (codec->flags & CODEC_FLAG_PASS1) {
3093 f = fopen(logfilename, "wb");
3095 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
3096 logfilename, strerror(errno));
3106 /* open each encoder */
3107 for (i = 0; i < nb_output_streams; i++) {
3108 ost = output_streams[i];
3109 if (ost->encoding_needed) {
3110 AVCodec *codec = ost->enc;
3111 AVCodecContext *dec = NULL;
3113 if ((ist = get_input_stream(ost)))
3114 dec = ist->st->codec;
3115 if (dec && dec->subtitle_header) {
3116 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
3117 if (!ost->st->codec->subtitle_header) {
3118 ret = AVERROR(ENOMEM);
3121 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
3122 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
3124 if (!av_dict_get(ost->opts, "threads", NULL, 0))
3125 av_dict_set(&ost->opts, "threads", "auto", 0);
3126 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
3127 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
3128 ost->file_index, ost->index);
3129 ret = AVERROR(EINVAL);
3132 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
3133 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
3134 av_buffersink_set_frame_size(ost->filter->filter,
3135 ost->st->codec->frame_size);
3136 assert_codec_experimental(ost->st->codec, 1);
3137 assert_avoptions(ost->opts);
3138 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
3139 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
3140 " It takes bits/s as argument, not kbits/s\n");
3141 extra_size += ost->st->codec->extradata_size;
3143 if (ost->st->codec->me_threshold)
3144 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
3148 /* init input streams */
3149 for (i = 0; i < nb_input_streams; i++)
3150 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
3153 /* discard unused programs */
3154 for (i = 0; i < nb_input_files; i++) {
3155 InputFile *ifile = input_files[i];
3156 for (j = 0; j < ifile->ctx->nb_programs; j++) {
3157 AVProgram *p = ifile->ctx->programs[j];
3158 int discard = AVDISCARD_ALL;
3160 for (k = 0; k < p->nb_stream_indexes; k++)
3161 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
3162 discard = AVDISCARD_DEFAULT;
3165 p->discard = discard;
3169 /* open files and write file headers */
3170 for (i = 0; i < nb_output_files; i++) {
3171 oc = output_files[i]->ctx;
3172 oc->interrupt_callback = int_cb;
3173 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
3175 const char *errbuf_ptr = errbuf;
3176 if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
3177 errbuf_ptr = strerror(AVUNERROR(ret));
3178 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
3179 ret = AVERROR(EINVAL);
3182 // assert_avoptions(output_files[i]->opts);
3183 if (strcmp(oc->oformat->name, "rtp")) {
3189 /* dump the file output parameters - cannot be done before in case
3191 for (i = 0; i < nb_output_files; i++) {
3192 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
3195 /* dump the stream mapping */
3196 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
3197 for (i = 0; i < nb_input_streams; i++) {
3198 ist = input_streams[i];
3200 for (j = 0; j < ist->nb_filters; j++) {
3201 if (ist->filters[j]->graph->graph_desc) {
3202 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
3203 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
3204 ist->filters[j]->name);
3205 if (nb_filtergraphs > 1)
3206 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
3207 av_log(NULL, AV_LOG_INFO, "\n");
3212 for (i = 0; i < nb_output_streams; i++) {
3213 ost = output_streams[i];
3215 if (ost->attachment_filename) {
3216 /* an attached file */
3217 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
3218 ost->attachment_filename, ost->file_index, ost->index);
3222 if (ost->filter && ost->filter->graph->graph_desc) {
3223 /* output from a complex graph */
3224 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
3225 if (nb_filtergraphs > 1)
3226 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
3228 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
3229 ost->index, ost->enc ? ost->enc->name : "?");
3233 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
3234 input_streams[ost->source_index]->file_index,
3235 input_streams[ost->source_index]->st->index,
3238 if (ost->sync_ist != input_streams[ost->source_index])
3239 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
3240 ost->sync_ist->file_index,
3241 ost->sync_ist->st->index);
3242 if (ost->stream_copy)
3243 av_log(NULL, AV_LOG_INFO, " (copy)");
3245 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
3246 input_streams[ost->source_index]->dec->name : "?",
3247 ost->enc ? ost->enc->name : "?");
3248 av_log(NULL, AV_LOG_INFO, "\n");
3252 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
3264 * @return 1 if there are still streams where more output is wanted,
3267 static int need_output(void)
3271 for (i = 0; i < nb_output_streams; i++) {
3272 OutputStream *ost = output_streams[i];
3273 OutputFile *of = output_files[ost->file_index];
3274 AVFormatContext *os = output_files[ost->file_index]->ctx;
3276 if (ost->is_past_recording_time ||
3277 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
3279 if (ost->frame_number >= ost->max_frames) {
3281 for (j = 0; j < of->ctx->nb_streams; j++)
3282 output_streams[of->ost_index + j]->is_past_recording_time = 1;
3292 static int select_input_file(uint8_t *no_packet)
3294 int64_t ipts_min = INT64_MAX;
3295 int i, file_index = -1;
3297 for (i = 0; i < nb_input_streams; i++) {
3298 InputStream *ist = input_streams[i];
3299 int64_t ipts = ist->pts;
3301 if (ist->discard || no_packet[ist->file_index])
3303 if (!input_files[ist->file_index]->eof_reached) {
3304 if (ipts < ipts_min) {
3306 file_index = ist->file_index;
3314 static int check_keyboard_interaction(int64_t cur_time)
3317 static int64_t last_time;
3318 if (received_nb_signals)
3319 return AVERROR_EXIT;
3320 /* read_key() returns 0 on EOF */
3321 if(cur_time - last_time >= 100000 && !run_as_daemon){
3323 last_time = cur_time;
3327 return AVERROR_EXIT;
3328 if (key == '+') av_log_set_level(av_log_get_level()+10);
3329 if (key == '-') av_log_set_level(av_log_get_level()-10);
3330 if (key == 's') qp_hist ^= 1;
3333 do_hex_dump = do_pkt_dump = 0;
3334 } else if(do_pkt_dump){
3338 av_log_set_level(AV_LOG_DEBUG);
3340 if (key == 'c' || key == 'C'){
3341 char buf[4096], target[64], command[256], arg[256] = {0};
3344 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
3346 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
3351 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
3352 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
3353 target, time, command, arg);
3354 for (i = 0; i < nb_filtergraphs; i++) {
3355 FilterGraph *fg = filtergraphs[i];
3358 ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
3359 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
3360 fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
3362 ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
3367 av_log(NULL, AV_LOG_ERROR,
3368 "Parse error, at least 3 arguments were expected, "
3369 "only %d given in string '%s'\n", n, buf);
3372 if (key == 'd' || key == 'D'){
3375 debug = input_streams[0]->st->codec->debug<<1;
3376 if(!debug) debug = 1;
3377 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
3380 if(scanf("%d", &debug)!=1)
3381 fprintf(stderr,"error parsing debug value\n");
3382 for(i=0;i<nb_input_streams;i++) {
3383 input_streams[i]->st->codec->debug = debug;
3385 for(i=0;i<nb_output_streams;i++) {
3386 OutputStream *ost = output_streams[i];
3387 ost->st->codec->debug = debug;
3389 if(debug) av_log_set_level(AV_LOG_DEBUG);
3390 fprintf(stderr,"debug=%d\n", debug);
3393 fprintf(stderr, "key function\n"
3394 "? show this help\n"
3395 "+ increase verbosity\n"
3396 "- decrease verbosity\n"
3397 "c Send command to filtergraph\n"
3398 "D cycle through available debug modes\n"
3399 "h dump packets/hex press to cycle through the 3 states\n"
3401 "s Show QP histogram\n"
3408 static void *input_thread(void *arg)
3413 while (!transcoding_finished && ret >= 0) {
3415 ret = av_read_frame(f->ctx, &pkt);
3417 if (ret == AVERROR(EAGAIN)) {
3424 pthread_mutex_lock(&f->fifo_lock);
3425 while (!av_fifo_space(f->fifo))
3426 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
3428 av_dup_packet(&pkt);
3429 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
3431 pthread_mutex_unlock(&f->fifo_lock);
3438 static void free_input_threads(void)
3442 if (nb_input_files == 1)
3445 transcoding_finished = 1;
3447 for (i = 0; i < nb_input_files; i++) {
3448 InputFile *f = input_files[i];
3451 if (!f->fifo || f->joined)
3454 pthread_mutex_lock(&f->fifo_lock);
3455 while (av_fifo_size(f->fifo)) {
3456 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
3457 av_free_packet(&pkt);
3459 pthread_cond_signal(&f->fifo_cond);
3460 pthread_mutex_unlock(&f->fifo_lock);
3462 pthread_join(f->thread, NULL);
3465 while (av_fifo_size(f->fifo)) {
3466 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
3467 av_free_packet(&pkt);
3469 av_fifo_free(f->fifo);
3473 static int init_input_threads(void)
3477 if (nb_input_files == 1)
3480 for (i = 0; i < nb_input_files; i++) {
3481 InputFile *f = input_files[i];
3483 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
3484 return AVERROR(ENOMEM);
3486 pthread_mutex_init(&f->fifo_lock, NULL);
3487 pthread_cond_init (&f->fifo_cond, NULL);
3489 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
3490 return AVERROR(ret);
3495 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
3499 pthread_mutex_lock(&f->fifo_lock);
3501 if (av_fifo_size(f->fifo)) {
3502 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
3503 pthread_cond_signal(&f->fifo_cond);
3508 ret = AVERROR(EAGAIN);
3511 pthread_mutex_unlock(&f->fifo_lock);
3517 static int get_input_packet(InputFile *f, AVPacket *pkt)
3520 if (nb_input_files > 1)
3521 return get_input_packet_mt(f, pkt);
3523 return av_read_frame(f->ctx, pkt);
3527 * The following code is the main loop of the file converter
3529 static int transcode(void)
3532 AVFormatContext *is, *os;
3536 int no_packet_count = 0;
3537 int64_t timer_start;
3539 if (!(no_packet = av_mallocz(nb_input_files)))
3542 ret = transcode_init();
3547 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
3550 timer_start = av_gettime();
3553 if ((ret = init_input_threads()) < 0)
3557 for (; received_sigterm == 0;) {
3558 int file_index, ist_index;
3560 int64_t cur_time= av_gettime();
3562 /* if 'q' pressed, exits */
3564 if (check_keyboard_interaction(cur_time) < 0)
3567 /* check if there's any stream where output is still needed */
3568 if (!need_output()) {
3569 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
3573 /* select the stream that we must read now */
3574 file_index = select_input_file(no_packet);
3575 /* if none, if is finished */
3576 if (file_index < 0) {
3577 if (no_packet_count) {
3578 no_packet_count = 0;
3579 memset(no_packet, 0, nb_input_files);
3583 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
3587 is = input_files[file_index]->ctx;
3588 ret = get_input_packet(input_files[file_index], &pkt);
3590 if (ret == AVERROR(EAGAIN)) {
3591 no_packet[file_index] = 1;
3596 input_files[file_index]->eof_reached = 1;
3598 for (i = 0; i < input_files[file_index]->nb_streams; i++) {
3599 ist = input_streams[input_files[file_index]->ist_index + i];
3600 if (ist->decoding_needed)
3601 output_packet(ist, NULL);
3610 no_packet_count = 0;
3611 memset(no_packet, 0, nb_input_files);
3614 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
3615 is->streams[pkt.stream_index]);
3617 /* the following test is needed in case new streams appear
3618 dynamically in stream : we ignore them */
3619 if (pkt.stream_index >= input_files[file_index]->nb_streams)
3620 goto discard_packet;
3621 ist_index = input_files[file_index]->ist_index + pkt.stream_index;
3622 ist = input_streams[ist_index];
3624 goto discard_packet;
3626 if (pkt.dts != AV_NOPTS_VALUE)
3627 pkt.dts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3628 if (pkt.pts != AV_NOPTS_VALUE)
3629 pkt.pts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3631 if (pkt.pts != AV_NOPTS_VALUE)
3632 pkt.pts *= ist->ts_scale;
3633 if (pkt.dts != AV_NOPTS_VALUE)
3634 pkt.dts *= ist->ts_scale;