3 * Copyright (c) 2000-2011 The libav developers.
5 * This file is part of Libav.
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavutil/imgutils.h"
48 #include "libavformat/os_support.h"
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/buffersrc.h"
53 # include "libavfilter/vsrc_buffer.h"
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
62 #if HAVE_GETPROCESSMEMORYINFO
68 #include <sys/select.h>
75 #include "libavutil/avassert.h"
78 #define VSYNC_PASSTHROUGH 0
82 const char program_name[] = "avconv";
83 const int program_birth_year = 2000;
85 /* select an input stream for an output stream */
86 typedef struct StreamMap {
87 int disabled; /** 1 is this mapping is disabled by a negative map */
91 int sync_stream_index;
95 * select an input file for an output file
97 typedef struct MetadataMap {
98 int file; ///< file index
99 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
100 int index; ///< stream/chapter/program number
103 static const OptionDef options[];
105 static int video_discard = 0;
106 static int same_quant = 0;
107 static int do_deinterlace = 0;
108 static int intra_dc_precision = 8;
109 static int qp_hist = 0;
111 static int file_overwrite = 0;
112 static int do_benchmark = 0;
113 static int do_hex_dump = 0;
114 static int do_pkt_dump = 0;
115 static int do_pass = 0;
116 static char *pass_logfilename_prefix = NULL;
117 static int video_sync_method = VSYNC_AUTO;
118 static int audio_sync_method = 0;
119 static float audio_drift_threshold = 0.1;
120 static int copy_ts = 0;
121 static int copy_tb = 1;
122 static int opt_shortest = 0;
123 static char *vstats_filename;
124 static FILE *vstats_file;
126 static int audio_volume = 256;
128 static int exit_on_error = 0;
129 static int using_stdin = 0;
130 static int64_t video_size = 0;
131 static int64_t audio_size = 0;
132 static int64_t extra_size = 0;
133 static int nb_frames_dup = 0;
134 static int nb_frames_drop = 0;
135 static int input_sync;
137 static float dts_delta_threshold = 10;
139 static int print_stats = 1;
141 static uint8_t *audio_buf;
142 static unsigned int allocated_audio_buf_size;
143 static uint8_t *async_buf;
144 static unsigned int allocated_async_buf_size;
146 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
148 typedef struct FrameBuffer {
154 enum PixelFormat pix_fmt;
157 struct InputStream *ist;
158 struct FrameBuffer *next;
161 typedef struct InputStream {
164 int discard; /* true if stream data should be discarded */
165 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
167 AVFrame *decoded_frame;
168 AVFrame *filtered_frame;
170 int64_t start; /* time when read started */
171 /* predicted dts of the next packet read for this stream or (when there are
172 * several frames in a packet) of the next frame in current packet */
174 /* dts of the last packet read for this stream */
176 PtsCorrectionContext pts_ctx;
178 int is_start; /* is 1 at the start and after a discontinuity */
179 int showed_multi_packet_warning;
184 int resample_pix_fmt;
186 /* a pool of free buffers for decoded data */
187 FrameBuffer *buffer_pool;
190 typedef struct InputFile {
191 AVFormatContext *ctx;
192 int eof_reached; /* true if eof reached */
193 int ist_index; /* index of first stream in ist_table */
194 int buffer_size; /* current total buffer size */
196 int nb_streams; /* number of stream that avconv is aware of; may be different
197 from ctx.nb_streams if new streams appear during av_read_frame() */
201 typedef struct OutputStream {
202 int file_index; /* file index */
203 int index; /* stream index in the output file */
204 int source_index; /* InputStream index */
205 AVStream *st; /* stream in the output file */
206 int encoding_needed; /* true if encoding needed for this stream */
208 /* input pts and corresponding output pts
210 // double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
211 struct InputStream *sync_ist; /* input stream to sync against */
212 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
213 /* pts of the first frame encoded for this stream, used for limiting
216 AVBitStreamFilterContext *bitstream_filters;
219 AVFrame *output_frame;
222 AVRational frame_rate;
226 float frame_aspect_ratio;
228 /* forced key frames */
229 int64_t *forced_kf_pts;
235 ReSampleContext *resample; /* for audio resampling */
236 int resample_sample_fmt;
237 int resample_channels;
238 int resample_sample_rate;
240 AVAudioConvert *reformat_ctx;
241 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
244 AVFilterContext *output_video_filter;
245 AVFilterContext *input_video_filter;
247 AVFilterGraph *graph;
251 int is_past_recording_time;
253 const char *attachment_filename;
254 int copy_initial_nonkeyframes;
256 enum PixelFormat pix_fmts[2];
260 typedef struct OutputFile {
261 AVFormatContext *ctx;
263 int ost_index; /* index of the first stream in output_streams */
264 int64_t recording_time; /* desired length of the resulting file in microseconds */
265 int64_t start_time; /* start time in microseconds */
266 uint64_t limit_filesize;
269 static InputStream **input_streams = NULL;
270 static int nb_input_streams = 0;
271 static InputFile **input_files = NULL;
272 static int nb_input_files = 0;
274 static OutputStream **output_streams = NULL;
275 static int nb_output_streams = 0;
276 static OutputFile **output_files = NULL;
277 static int nb_output_files = 0;
279 typedef struct OptionsContext {
280 /* input/output options */
284 SpecifierOpt *codec_names;
286 SpecifierOpt *audio_channels;
287 int nb_audio_channels;
288 SpecifierOpt *audio_sample_rate;
289 int nb_audio_sample_rate;
290 SpecifierOpt *frame_rates;
292 SpecifierOpt *frame_sizes;
294 SpecifierOpt *frame_pix_fmts;
295 int nb_frame_pix_fmts;
298 int64_t input_ts_offset;
301 SpecifierOpt *ts_scale;
303 SpecifierOpt *dump_attachment;
304 int nb_dump_attachment;
307 StreamMap *stream_maps;
309 /* first item specifies output metadata, second is input */
310 MetadataMap (*meta_data_maps)[2];
311 int nb_meta_data_maps;
312 int metadata_global_manual;
313 int metadata_streams_manual;
314 int metadata_chapters_manual;
315 const char **attachments;
318 int chapters_input_file;
320 int64_t recording_time;
321 uint64_t limit_filesize;
327 int subtitle_disable;
330 /* indexed by output file stream index */
334 SpecifierOpt *metadata;
336 SpecifierOpt *max_frames;
338 SpecifierOpt *bitstream_filters;
339 int nb_bitstream_filters;
340 SpecifierOpt *codec_tags;
342 SpecifierOpt *sample_fmts;
344 SpecifierOpt *qscale;
346 SpecifierOpt *forced_key_frames;
347 int nb_forced_key_frames;
348 SpecifierOpt *force_fps;
350 SpecifierOpt *frame_aspect_ratios;
351 int nb_frame_aspect_ratios;
352 SpecifierOpt *rc_overrides;
354 SpecifierOpt *intra_matrices;
355 int nb_intra_matrices;
356 SpecifierOpt *inter_matrices;
357 int nb_inter_matrices;
358 SpecifierOpt *top_field_first;
359 int nb_top_field_first;
360 SpecifierOpt *metadata_map;
362 SpecifierOpt *presets;
364 SpecifierOpt *copy_initial_nonkeyframes;
365 int nb_copy_initial_nonkeyframes;
366 SpecifierOpt *filters;
370 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
373 for (i = 0; i < o->nb_ ## name; i++) {\
374 char *spec = o->name[i].specifier;\
375 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
376 outvar = o->name[i].u.type;\
382 static void reset_options(OptionsContext *o)
384 const OptionDef *po = options;
386 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
388 void *dst = (uint8_t*)o + po->u.off;
390 if (po->flags & OPT_SPEC) {
391 SpecifierOpt **so = dst;
392 int i, *count = (int*)(so + 1);
393 for (i = 0; i < *count; i++) {
394 av_freep(&(*so)[i].specifier);
395 if (po->flags & OPT_STRING)
396 av_freep(&(*so)[i].u.str);
400 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
405 av_freep(&o->stream_maps);
406 av_freep(&o->meta_data_maps);
407 av_freep(&o->streamid_map);
409 memset(o, 0, sizeof(*o));
411 o->mux_max_delay = 0.7;
412 o->recording_time = INT64_MAX;
413 o->limit_filesize = UINT64_MAX;
414 o->chapters_input_file = INT_MAX;
420 static int alloc_buffer(InputStream *ist, AVCodecContext *s, FrameBuffer **pbuf)
422 FrameBuffer *buf = av_mallocz(sizeof(*buf));
424 const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
425 int h_chroma_shift, v_chroma_shift;
426 int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1
427 int w = s->width, h = s->height;
430 return AVERROR(ENOMEM);
432 if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
437 avcodec_align_dimensions(s, &w, &h);
438 if ((ret = av_image_alloc(buf->base, buf->linesize, w, h,
439 s->pix_fmt, 32)) < 0) {
443 /* XXX this shouldn't be needed, but some tests break without this line
444 * those decoders are buggy and need to be fixed.
445 * the following tests fail:
446 * cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit
448 memset(buf->base[0], 128, ret);
450 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
451 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
452 const int h_shift = i==0 ? 0 : h_chroma_shift;
453 const int v_shift = i==0 ? 0 : v_chroma_shift;
454 if (s->flags & CODEC_FLAG_EMU_EDGE)
455 buf->data[i] = buf->base[i];
457 buf->data[i] = buf->base[i] +
458 FFALIGN((buf->linesize[i]*edge >> v_shift) +
459 (pixel_size*edge >> h_shift), 32);
463 buf->pix_fmt = s->pix_fmt;
470 static void free_buffer_pool(InputStream *ist)
472 FrameBuffer *buf = ist->buffer_pool;
474 ist->buffer_pool = buf->next;
475 av_freep(&buf->base[0]);
477 buf = ist->buffer_pool;
481 static void unref_buffer(InputStream *ist, FrameBuffer *buf)
483 av_assert0(buf->refcount);
485 if (!buf->refcount) {
486 buf->next = ist->buffer_pool;
487 ist->buffer_pool = buf;
491 static int codec_get_buffer(AVCodecContext *s, AVFrame *frame)
493 InputStream *ist = s->opaque;
497 if (!ist->buffer_pool && (ret = alloc_buffer(ist, s, &ist->buffer_pool)) < 0)
500 buf = ist->buffer_pool;
501 ist->buffer_pool = buf->next;
503 if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) {
504 av_freep(&buf->base[0]);
506 if ((ret = alloc_buffer(ist, s, &buf)) < 0)
512 frame->type = FF_BUFFER_TYPE_USER;
513 frame->extended_data = frame->data;
514 frame->pkt_pts = s->pkt ? s->pkt->pts : AV_NOPTS_VALUE;
515 frame->width = buf->w;
516 frame->height = buf->h;
517 frame->format = buf->pix_fmt;
518 frame->sample_aspect_ratio = s->sample_aspect_ratio;
520 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
521 frame->base[i] = buf->base[i]; // XXX h264.c uses base though it shouldn't
522 frame->data[i] = buf->data[i];
523 frame->linesize[i] = buf->linesize[i];
529 static void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
531 InputStream *ist = s->opaque;
532 FrameBuffer *buf = frame->opaque;
535 for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++)
536 frame->data[i] = NULL;
538 unref_buffer(ist, buf);
541 static void filter_release_buffer(AVFilterBuffer *fb)
543 FrameBuffer *buf = fb->priv;
545 unref_buffer(buf->ist, buf);
548 static const enum PixelFormat *choose_pixel_fmts(OutputStream *ost)
550 if (ost->st->codec->pix_fmt != PIX_FMT_NONE) {
551 ost->pix_fmts[0] = ost->st->codec->pix_fmt;
552 return ost->pix_fmts;
553 } else if (ost->enc->pix_fmts)
554 return ost->enc->pix_fmts;
559 static int configure_video_filters(InputStream *ist, OutputStream *ost)
561 AVFilterContext *last_filter, *filter;
562 /** filter graph containing all filters including input & output */
563 AVCodecContext *codec = ost->st->codec;
564 AVCodecContext *icodec = ist->st->codec;
565 SinkContext sink_ctx = { .pix_fmts = choose_pixel_fmts(ost) };
566 AVRational sample_aspect_ratio;
570 ost->graph = avfilter_graph_alloc();
572 if (ist->st->sample_aspect_ratio.num) {
573 sample_aspect_ratio = ist->st->sample_aspect_ratio;
575 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
577 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
578 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
579 sample_aspect_ratio.num, sample_aspect_ratio.den);
581 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
582 "src", args, NULL, ost->graph);
585 ret = avfilter_graph_create_filter(&ost->output_video_filter, &sink,
586 "out", NULL, &sink_ctx, ost->graph);
589 last_filter = ost->input_video_filter;
591 if (codec->width != icodec->width || codec->height != icodec->height) {
592 snprintf(args, 255, "%d:%d:flags=0x%X",
595 (unsigned)ost->sws_flags);
596 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
597 NULL, args, NULL, ost->graph)) < 0)
599 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
601 last_filter = filter;
604 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
605 ost->graph->scale_sws_opts = av_strdup(args);
608 AVFilterInOut *outputs = avfilter_inout_alloc();
609 AVFilterInOut *inputs = avfilter_inout_alloc();
611 outputs->name = av_strdup("in");
612 outputs->filter_ctx = last_filter;
613 outputs->pad_idx = 0;
614 outputs->next = NULL;
616 inputs->name = av_strdup("out");
617 inputs->filter_ctx = ost->output_video_filter;
621 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
624 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
628 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
631 codec->width = ost->output_video_filter->inputs[0]->w;
632 codec->height = ost->output_video_filter->inputs[0]->h;
633 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
634 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
635 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
636 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
637 codec->pix_fmt = ost->output_video_filter->inputs[0]->format;
642 static void term_exit(void)
644 av_log(NULL, AV_LOG_QUIET, "");
647 static volatile int received_sigterm = 0;
648 static volatile int received_nb_signals = 0;
651 sigterm_handler(int sig)
653 received_sigterm = sig;
654 received_nb_signals++;
658 static void term_init(void)
660 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
661 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
663 signal(SIGXCPU, sigterm_handler);
667 static int decode_interrupt_cb(void *ctx)
669 return received_nb_signals > 1;
672 static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
674 void exit_program(int ret)
679 for (i = 0; i < nb_output_files; i++) {
680 AVFormatContext *s = output_files[i]->ctx;
681 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
683 avformat_free_context(s);
684 av_dict_free(&output_files[i]->opts);
685 av_freep(&output_files[i]);
687 for (i = 0; i < nb_output_streams; i++) {
688 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
690 AVBitStreamFilterContext *next = bsfc->next;
691 av_bitstream_filter_close(bsfc);
694 output_streams[i]->bitstream_filters = NULL;
696 if (output_streams[i]->output_frame) {
697 AVFrame *frame = output_streams[i]->output_frame;
698 if (frame->extended_data != frame->data)
699 av_freep(&frame->extended_data);
703 av_freep(&output_streams[i]->avfilter);
704 av_freep(&output_streams[i]);
706 for (i = 0; i < nb_input_files; i++) {
707 avformat_close_input(&input_files[i]->ctx);
708 av_freep(&input_files[i]);
710 for (i = 0; i < nb_input_streams; i++) {
711 av_freep(&input_streams[i]->decoded_frame);
712 av_freep(&input_streams[i]->filtered_frame);
713 av_dict_free(&input_streams[i]->opts);
714 free_buffer_pool(input_streams[i]);
715 av_freep(&input_streams[i]);
720 av_free(vstats_filename);
722 av_freep(&input_streams);
723 av_freep(&input_files);
724 av_freep(&output_streams);
725 av_freep(&output_files);
729 allocated_audio_buf_size = 0;
731 allocated_async_buf_size = 0;
734 avformat_network_deinit();
736 if (received_sigterm) {
737 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
738 (int) received_sigterm);
745 static void assert_avoptions(AVDictionary *m)
747 AVDictionaryEntry *t;
748 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
749 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
754 static void assert_codec_experimental(AVCodecContext *c, int encoder)
756 const char *codec_string = encoder ? "encoder" : "decoder";
758 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
759 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
760 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
761 "results.\nAdd '-strict experimental' if you want to use it.\n",
762 codec_string, c->codec->name);
763 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
764 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
765 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
766 codec_string, codec->name);
771 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
773 if (codec && codec->sample_fmts) {
774 const enum AVSampleFormat *p = codec->sample_fmts;
775 for (; *p != -1; p++) {
776 if (*p == st->codec->sample_fmt)
780 av_log(NULL, AV_LOG_WARNING,
781 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
782 av_get_sample_fmt_name(st->codec->sample_fmt),
784 av_get_sample_fmt_name(codec->sample_fmts[0]));
785 st->codec->sample_fmt = codec->sample_fmts[0];
791 * Update the requested input sample format based on the output sample format.
792 * This is currently only used to request float output from decoders which
793 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
794 * Ideally this will be removed in the future when decoders do not do format
795 * conversion and only output in their native format.
797 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
800 /* if sample formats match or a decoder sample format has already been
801 requested, just return */
802 if (enc->sample_fmt == dec->sample_fmt ||
803 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
806 /* if decoder supports more than one output format */
807 if (dec_codec && dec_codec->sample_fmts &&
808 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
809 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
810 const enum AVSampleFormat *p;
811 int min_dec = -1, min_inc = -1;
813 /* find a matching sample format in the encoder */
814 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
815 if (*p == enc->sample_fmt) {
816 dec->request_sample_fmt = *p;
818 } else if (*p > enc->sample_fmt) {
819 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
821 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
824 /* if none match, provide the one that matches quality closest */
825 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
826 enc->sample_fmt - min_dec;
830 static void choose_sample_rate(AVStream *st, AVCodec *codec)
832 if (codec && codec->supported_samplerates) {
833 const int *p = codec->supported_samplerates;
835 int best_dist = INT_MAX;
837 int dist = abs(st->codec->sample_rate - *p);
838 if (dist < best_dist) {
844 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
846 st->codec->sample_rate = best;
851 get_sync_ipts(const OutputStream *ost, int64_t pts)
853 OutputFile *of = output_files[ost->file_index];
854 return (double)(pts - of->start_time) / AV_TIME_BASE;
857 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
859 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
860 AVCodecContext *avctx = ost->st->codec;
864 * Audio encoders may split the packets -- #frames in != #packets out.
865 * But there is no reordering, so we can limit the number of output packets
866 * by simply dropping them here.
867 * Counting encoded video frames needs to be done separately because of
868 * reordering, see do_video_out()
870 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
871 if (ost->frame_number >= ost->max_frames) {
879 AVPacket new_pkt = *pkt;
880 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
881 &new_pkt.data, &new_pkt.size,
882 pkt->data, pkt->size,
883 pkt->flags & AV_PKT_FLAG_KEY);
886 new_pkt.destruct = av_destruct_packet;
888 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
889 bsfc->filter->name, pkt->stream_index,
890 avctx->codec ? avctx->codec->name : "copy");
900 pkt->stream_index = ost->index;
901 ret = av_interleaved_write_frame(s, pkt);
903 print_error("av_interleaved_write_frame()", ret);
908 static int check_recording_time(OutputStream *ost)
910 OutputFile *of = output_files[ost->file_index];
912 if (of->recording_time != INT64_MAX &&
913 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
914 AV_TIME_BASE_Q) >= 0) {
915 ost->is_past_recording_time = 1;
921 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
923 int fill_char = 0x00;
924 if (sample_fmt == AV_SAMPLE_FMT_U8)
926 memset(buf, fill_char, size);
929 static int encode_audio_frame(AVFormatContext *s, OutputStream *ost,
930 const uint8_t *buf, int buf_size)
932 AVCodecContext *enc = ost->st->codec;
933 AVFrame *frame = NULL;
937 av_init_packet(&pkt);
942 if (!ost->output_frame) {
943 ost->output_frame = avcodec_alloc_frame();
944 if (!ost->output_frame) {
945 av_log(NULL, AV_LOG_FATAL, "out-of-memory in encode_audio_frame()\n");
949 frame = ost->output_frame;
950 if (frame->extended_data != frame->data)
951 av_freep(&frame->extended_data);
952 avcodec_get_frame_defaults(frame);
954 frame->nb_samples = buf_size /
955 (enc->channels * av_get_bytes_per_sample(enc->sample_fmt));
956 if ((ret = avcodec_fill_audio_frame(frame, enc->channels, enc->sample_fmt,
957 buf, buf_size, 1)) < 0) {
958 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
962 if (!check_recording_time(ost))
965 frame->pts = ost->sync_opts;
966 ost->sync_opts += frame->nb_samples;
970 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
971 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
976 if (pkt.pts != AV_NOPTS_VALUE)
977 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
978 if (pkt.dts != AV_NOPTS_VALUE)
979 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
980 if (pkt.duration > 0)
981 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
983 write_frame(s, &pkt, ost);
985 audio_size += pkt.size;
991 static int alloc_audio_output_buf(AVCodecContext *dec, AVCodecContext *enc,
994 int64_t audio_buf_samples;
997 /* calculate required number of samples to allocate */
998 audio_buf_samples = ((int64_t)nb_samples * enc->sample_rate + dec->sample_rate) /
1000 audio_buf_samples = 4 * audio_buf_samples + 16; // safety factors for resampling
1001 audio_buf_samples = FFMAX(audio_buf_samples, enc->frame_size);
1002 if (audio_buf_samples > INT_MAX)
1003 return AVERROR(EINVAL);
1005 audio_buf_size = av_samples_get_buffer_size(NULL, enc->channels,
1007 enc->sample_fmt, 0);
1008 if (audio_buf_size < 0)
1009 return audio_buf_size;
1011 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
1013 return AVERROR(ENOMEM);
1018 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
1019 InputStream *ist, AVFrame *decoded_frame)
1023 int size_out, frame_bytes, resample_changed;
1024 AVCodecContext *enc = ost->st->codec;
1025 AVCodecContext *dec = ist->st->codec;
1026 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1027 int isize = av_get_bytes_per_sample(dec->sample_fmt);
1028 uint8_t *buf = decoded_frame->data[0];
1029 int size = decoded_frame->nb_samples * dec->channels * isize;
1031 if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples) < 0) {
1032 av_log(NULL, AV_LOG_FATAL, "Error allocating audio buffer\n");
1036 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
1037 ost->audio_resample = 1;
1039 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
1040 ost->resample_channels != dec->channels ||
1041 ost->resample_sample_rate != dec->sample_rate;
1043 if ((ost->audio_resample && !ost->resample) || resample_changed) {
1044 if (resample_changed) {
1045 av_log(NULL, AV_LOG_INFO, "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
1046 ist->file_index, ist->st->index,
1047 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
1048 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
1049 ost->resample_sample_fmt = dec->sample_fmt;
1050 ost->resample_channels = dec->channels;
1051 ost->resample_sample_rate = dec->sample_rate;
1053 audio_resample_close(ost->resample);
1055 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
1056 if (audio_sync_method <= 1 &&
1057 ost->resample_sample_fmt == enc->sample_fmt &&
1058 ost->resample_channels == enc->channels &&
1059 ost->resample_sample_rate == enc->sample_rate) {
1060 ost->resample = NULL;
1061 ost->audio_resample = 0;
1062 } else if (ost->audio_resample) {
1063 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
1064 av_log(NULL, AV_LOG_WARNING, "Using s16 intermediate sample format for resampling\n");
1065 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
1066 enc->sample_rate, dec->sample_rate,
1067 enc->sample_fmt, dec->sample_fmt,
1069 if (!ost->resample) {
1070 av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
1071 dec->channels, dec->sample_rate,
1072 enc->channels, enc->sample_rate);
1078 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
1079 if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt &&
1080 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt) != ost->reformat_pair) {
1081 if (ost->reformat_ctx)
1082 av_audio_convert_free(ost->reformat_ctx);
1083 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
1084 dec->sample_fmt, 1, NULL, 0);
1085 if (!ost->reformat_ctx) {
1086 av_log(NULL, AV_LOG_FATAL, "Cannot convert %s sample format to %s sample format\n",
1087 av_get_sample_fmt_name(dec->sample_fmt),
1088 av_get_sample_fmt_name(enc->sample_fmt));
1091 ost->reformat_pair = MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
1094 if (audio_sync_method > 0) {
1095 double delta = get_sync_ipts(ost, ist->last_dts) * enc->sample_rate - ost->sync_opts -
1096 av_fifo_size(ost->fifo) / (enc->channels * osize);
1097 int idelta = delta * dec->sample_rate / enc->sample_rate;
1098 int byte_delta = idelta * isize * dec->channels;
1100 // FIXME resample delay
1101 if (fabs(delta) > 50) {
1102 if (ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate) {
1103 if (byte_delta < 0) {
1104 byte_delta = FFMAX(byte_delta, -size);
1107 av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
1108 -byte_delta / (isize * dec->channels));
1113 av_fast_malloc(&async_buf, &allocated_async_buf_size,
1116 av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
1120 if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples + idelta) < 0) {
1121 av_log(NULL, AV_LOG_FATAL, "Error allocating audio buffer\n");
1126 generate_silence(async_buf, dec->sample_fmt, byte_delta);
1127 memcpy(async_buf + byte_delta, buf, size);
1130 av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
1132 } else if (audio_sync_method > 1) {
1133 int comp = av_clip(delta, -audio_sync_method, audio_sync_method);
1134 av_assert0(ost->audio_resample);
1135 av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
1136 delta, comp, enc->sample_rate);
1137 // fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
1138 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
1141 } else if (audio_sync_method == 0)
1142 ost->sync_opts = lrintf(get_sync_ipts(ost, ist->last_dts) * enc->sample_rate) -
1143 av_fifo_size(ost->fifo) / (enc->channels * osize); // FIXME wrong
1145 if (ost->audio_resample) {
1147 size_out = audio_resample(ost->resample,
1148 (short *)buftmp, (short *)buf,
1149 size / (dec->channels * isize));
1150 size_out = size_out * enc->channels * osize;
1156 if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt) {
1157 const void *ibuf[6] = { buftmp };
1158 void *obuf[6] = { audio_buf };
1159 int istride[6] = { isize };
1160 int ostride[6] = { osize };
1161 int len = size_out / istride[0];
1162 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len) < 0) {
1163 printf("av_audio_convert() failed\n");
1169 size_out = len * osize;
1172 /* now encode as many frames as possible */
1173 if (!(enc->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1174 /* output resampled raw samples */
1175 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
1176 av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
1179 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
1181 frame_bytes = enc->frame_size * osize * enc->channels;
1183 while (av_fifo_size(ost->fifo) >= frame_bytes) {
1184 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
1185 encode_audio_frame(s, ost, audio_buf, frame_bytes);
1188 encode_audio_frame(s, ost, buftmp, size_out);
1192 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1194 AVCodecContext *dec;
1195 AVPicture *picture2;
1196 AVPicture picture_tmp;
1199 dec = ist->st->codec;
1201 /* deinterlace : must be done before any resize */
1202 if (do_deinterlace) {
1205 /* create temporary picture */
1206 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1207 buf = av_malloc(size);
1211 picture2 = &picture_tmp;
1212 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1214 if (avpicture_deinterlace(picture2, picture,
1215 dec->pix_fmt, dec->width, dec->height) < 0) {
1216 /* if error, do not deinterlace */
1217 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
1226 if (picture != picture2)
1227 *picture = *picture2;
1231 static void do_subtitle_out(AVFormatContext *s,
1237 static uint8_t *subtitle_out = NULL;
1238 int subtitle_out_max_size = 1024 * 1024;
1239 int subtitle_out_size, nb, i;
1240 AVCodecContext *enc;
1243 if (pts == AV_NOPTS_VALUE) {
1244 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1250 enc = ost->st->codec;
1252 if (!subtitle_out) {
1253 subtitle_out = av_malloc(subtitle_out_max_size);
1256 /* Note: DVB subtitle need one packet to draw them and one other
1257 packet to clear them */
1258 /* XXX: signal it in the codec context ? */
1259 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1264 for (i = 0; i < nb; i++) {
1265 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
1266 if (!check_recording_time(ost))
1269 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1270 // start_display_time is required to be 0
1271 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1272 sub->end_display_time -= sub->start_display_time;
1273 sub->start_display_time = 0;
1274 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1275 subtitle_out_max_size, sub);
1276 if (subtitle_out_size < 0) {
1277 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1281 av_init_packet(&pkt);
1282 pkt.data = subtitle_out;
1283 pkt.size = subtitle_out_size;
1284 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1285 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1286 /* XXX: the pts correction is handled here. Maybe handling
1287 it in the codec would be better */
1289 pkt.pts += 90 * sub->start_display_time;
1291 pkt.pts += 90 * sub->end_display_time;
1293 write_frame(s, &pkt, ost);
1297 static void do_video_out(AVFormatContext *s,
1299 AVFrame *in_picture,
1300 int *frame_size, float quality)
1302 int nb_frames, i, ret, format_video_sync;
1303 AVCodecContext *enc;
1304 double sync_ipts, delta;
1306 enc = ost->st->codec;
1308 sync_ipts = get_sync_ipts(ost, in_picture->pts) / av_q2d(enc->time_base);
1309 delta = sync_ipts - ost->sync_opts;
1311 /* by default, we output a single frame */
1316 format_video_sync = video_sync_method;
1317 if (format_video_sync == VSYNC_AUTO)
1318 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
1319 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
1321 switch (format_video_sync) {
1323 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1326 else if (delta > 1.1)
1327 nb_frames = lrintf(delta);
1332 else if (delta > 0.6)
1333 ost->sync_opts = lrintf(sync_ipts);
1335 case VSYNC_PASSTHROUGH:
1336 ost->sync_opts = lrintf(sync_ipts);
1342 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1343 if (nb_frames == 0) {
1345 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1347 } else if (nb_frames > 1) {
1348 nb_frames_dup += nb_frames - 1;
1349 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
1352 if (!ost->frame_number)
1353 ost->first_pts = ost->sync_opts;
1355 /* duplicates frame if needed */
1356 for (i = 0; i < nb_frames; i++) {
1358 av_init_packet(&pkt);
1362 if (!check_recording_time(ost))
1365 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1366 enc->codec->id == CODEC_ID_RAWVIDEO) {
1367 /* raw pictures are written as AVPicture structure to
1368 avoid any copies. We support temporarily the older
1370 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1371 enc->coded_frame->top_field_first = in_picture->top_field_first;
1372 pkt.data = (uint8_t *)in_picture;
1373 pkt.size = sizeof(AVPicture);
1374 pkt.pts = av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1375 pkt.flags |= AV_PKT_FLAG_KEY;
1377 write_frame(s, &pkt, ost);
1380 AVFrame big_picture;
1382 big_picture = *in_picture;
1383 /* better than nothing: use input picture interlaced
1385 big_picture.interlaced_frame = in_picture->interlaced_frame;
1386 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1387 if (ost->top_field_first == -1)
1388 big_picture.top_field_first = in_picture->top_field_first;
1390 big_picture.top_field_first = !!ost->top_field_first;
1393 /* handles same_quant here. This is not correct because it may
1394 not be a global option */
1395 big_picture.quality = quality;
1396 if (!enc->me_threshold)
1397 big_picture.pict_type = 0;
1398 big_picture.pts = ost->sync_opts;
1399 if (ost->forced_kf_index < ost->forced_kf_count &&
1400 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1401 big_picture.pict_type = AV_PICTURE_TYPE_I;
1402 ost->forced_kf_index++;
1404 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
1406 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1411 if (pkt.pts != AV_NOPTS_VALUE)
1412 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1413 if (pkt.dts != AV_NOPTS_VALUE)
1414 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1416 write_frame(s, &pkt, ost);
1417 *frame_size = pkt.size;
1418 video_size += pkt.size;
1420 /* if two pass, output log */
1421 if (ost->logfile && enc->stats_out) {
1422 fprintf(ost->logfile, "%s", enc->stats_out);
1428 * For video, number of frames in == number of packets out.
1429 * But there may be reordering, so we can't throw away frames on encoder
1430 * flush, we need to limit them here, before they go into encoder.
1432 ost->frame_number++;
1436 static double psnr(double d)
1438 return -10.0 * log(d) / log(10.0);
1441 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1444 AVCodecContext *enc;
1446 double ti1, bitrate, avg_bitrate;
1448 /* this is executed just the first time do_video_stats is called */
1450 vstats_file = fopen(vstats_filename, "w");
1457 enc = ost->st->codec;
1458 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1459 frame_number = ost->frame_number;
1460 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1461 if (enc->flags&CODEC_FLAG_PSNR)
1462 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1464 fprintf(vstats_file,"f_size= %6d ", frame_size);
1465 /* compute pts value */
1466 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1470 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1471 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1472 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1473 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1474 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1478 static void print_report(int is_last_report, int64_t timer_start)
1482 AVFormatContext *oc;
1484 AVCodecContext *enc;
1485 int frame_number, vid, i;
1486 double bitrate, ti1, pts;
1487 static int64_t last_time = -1;
1488 static int qp_histogram[52];
1490 if (!print_stats && !is_last_report)
1493 if (!is_last_report) {
1495 /* display the report every 0.5 seconds */
1496 cur_time = av_gettime();
1497 if (last_time == -1) {
1498 last_time = cur_time;
1501 if ((cur_time - last_time) < 500000)
1503 last_time = cur_time;
1507 oc = output_files[0]->ctx;
1509 total_size = avio_size(oc->pb);
1510 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
1511 total_size = avio_tell(oc->pb);
1516 for (i = 0; i < nb_output_streams; i++) {
1518 ost = output_streams[i];
1519 enc = ost->st->codec;
1520 if (!ost->stream_copy && enc->coded_frame)
1521 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1522 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1523 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1525 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1526 float t = (av_gettime() - timer_start) / 1000000.0;
1528 frame_number = ost->frame_number;
1529 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1530 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
1532 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1536 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1538 for (j = 0; j < 32; j++)
1539 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
1541 if (enc->flags&CODEC_FLAG_PSNR) {
1543 double error, error_sum = 0;
1544 double scale, scale_sum = 0;
1545 char type[3] = { 'Y','U','V' };
1546 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1547 for (j = 0; j < 3; j++) {
1548 if (is_last_report) {
1549 error = enc->error[j];
1550 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1552 error = enc->coded_frame->error[j];
1553 scale = enc->width * enc->height * 255.0 * 255.0;
1559 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
1561 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1565 /* compute min output value */
1566 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1567 if ((pts < ti1) && (pts > 0))
1573 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1575 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1576 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1577 (double)total_size / 1024, ti1, bitrate);
1579 if (nb_frames_dup || nb_frames_drop)
1580 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1581 nb_frames_dup, nb_frames_drop);
1583 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1587 if (is_last_report) {
1588 int64_t raw= audio_size + video_size + extra_size;
1589 av_log(NULL, AV_LOG_INFO, "\n");
1590 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1591 video_size / 1024.0,
1592 audio_size / 1024.0,
1593 extra_size / 1024.0,
1594 100.0 * (total_size - raw) / raw
1599 static void flush_encoders(void)
1603 for (i = 0; i < nb_output_streams; i++) {
1604 OutputStream *ost = output_streams[i];
1605 AVCodecContext *enc = ost->st->codec;
1606 AVFormatContext *os = output_files[ost->file_index]->ctx;
1607 int stop_encoding = 0;
1609 if (!ost->encoding_needed)
1612 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1614 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
1619 int fifo_bytes, got_packet;
1620 av_init_packet(&pkt);
1624 switch (ost->st->codec->codec_type) {
1625 case AVMEDIA_TYPE_AUDIO:
1626 fifo_bytes = av_fifo_size(ost->fifo);
1627 if (fifo_bytes > 0) {
1628 /* encode any samples remaining in fifo */
1629 int frame_bytes = fifo_bytes;
1631 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1633 /* pad last frame with silence if needed */
1634 if (!(enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME)) {
1635 frame_bytes = enc->frame_size * enc->channels *
1636 av_get_bytes_per_sample(enc->sample_fmt);
1637 if (allocated_audio_buf_size < frame_bytes)
1639 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1641 encode_audio_frame(os, ost, audio_buf, frame_bytes);
1643 /* flush encoder with NULL frames until it is done
1644 returning packets */
1645 if (encode_audio_frame(os, ost, NULL, 0) == 0) {
1651 case AVMEDIA_TYPE_VIDEO:
1652 ret = avcodec_encode_video2(enc, &pkt, NULL, &got_packet);
1654 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1658 if (ost->logfile && enc->stats_out) {
1659 fprintf(ost->logfile, "%s", enc->stats_out);
1665 if (pkt.pts != AV_NOPTS_VALUE)
1666 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1667 if (pkt.dts != AV_NOPTS_VALUE)
1668 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1669 write_frame(os, &pkt, ost);
1681 * Check whether a packet from ist should be written into ost at this time
1683 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1685 OutputFile *of = output_files[ost->file_index];
1686 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1688 if (ost->source_index != ist_index)
1691 if (of->start_time && ist->last_dts < of->start_time)
1697 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1699 OutputFile *of = output_files[ost->file_index];
1700 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1703 av_init_packet(&opkt);
1705 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1706 !ost->copy_initial_nonkeyframes)
1709 if (of->recording_time != INT64_MAX &&
1710 ist->last_dts >= of->recording_time + of->start_time) {
1711 ost->is_past_recording_time = 1;
1715 /* force the input stream PTS */
1716 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1717 audio_size += pkt->size;
1718 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1719 video_size += pkt->size;
1723 if (pkt->pts != AV_NOPTS_VALUE)
1724 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1726 opkt.pts = AV_NOPTS_VALUE;
1728 if (pkt->dts == AV_NOPTS_VALUE)
1729 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1731 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1732 opkt.dts -= ost_tb_start_time;
1734 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1735 opkt.flags = pkt->flags;
1737 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1738 if ( ost->st->codec->codec_id != CODEC_ID_H264
1739 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1740 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1741 && ost->st->codec->codec_id != CODEC_ID_VC1
1743 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1744 opkt.destruct = av_destruct_packet;
1746 opkt.data = pkt->data;
1747 opkt.size = pkt->size;
1750 write_frame(of->ctx, &opkt, ost);
1751 ost->st->codec->frame_number++;
1752 av_free_packet(&opkt);
1755 static void rate_emu_sleep(InputStream *ist)
1757 if (input_files[ist->file_index]->rate_emu) {
1758 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
1759 int64_t now = av_gettime() - ist->start;
1765 static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1767 AVFrame *decoded_frame;
1768 AVCodecContext *avctx = ist->st->codec;
1769 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1772 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1773 return AVERROR(ENOMEM);
1775 avcodec_get_frame_defaults(ist->decoded_frame);
1776 decoded_frame = ist->decoded_frame;
1778 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1784 /* no audio frame */
1788 /* if the decoder provides a pts, use it instead of the last packet pts.
1789 the decoder could be delaying output by a packet or more. */
1790 if (decoded_frame->pts != AV_NOPTS_VALUE)
1791 ist->next_dts = decoded_frame->pts;
1793 /* increment next_dts to use for the case where the input stream does not
1794 have timestamps or there are multiple frames in the packet */
1795 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1798 // preprocess audio (volume)
1799 if (audio_volume != 256) {
1800 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1801 void *samples = decoded_frame->data[0];
1802 switch (avctx->sample_fmt) {
1803 case AV_SAMPLE_FMT_U8:
1805 uint8_t *volp = samples;
1806 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1807 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1808 *volp++ = av_clip_uint8(v);
1812 case AV_SAMPLE_FMT_S16:
1814 int16_t *volp = samples;
1815 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1816 int v = ((*volp) * audio_volume + 128) >> 8;
1817 *volp++ = av_clip_int16(v);
1821 case AV_SAMPLE_FMT_S32:
1823 int32_t *volp = samples;
1824 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1825 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1826 *volp++ = av_clipl_int32(v);
1830 case AV_SAMPLE_FMT_FLT:
1832 float *volp = samples;
1833 float scale = audio_volume / 256.f;
1834 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1839 case AV_SAMPLE_FMT_DBL:
1841 double *volp = samples;
1842 double scale = audio_volume / 256.;
1843 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1849 av_log(NULL, AV_LOG_FATAL,
1850 "Audio volume adjustment on sample format %s is not supported.\n",
1851 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1856 rate_emu_sleep(ist);
1858 for (i = 0; i < nb_output_streams; i++) {
1859 OutputStream *ost = output_streams[i];
1861 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1863 do_audio_out(output_files[ost->file_index]->ctx, ost, ist, decoded_frame);
1869 static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
1871 AVFrame *decoded_frame, *filtered_frame = NULL;
1872 void *buffer_to_free = NULL;
1873 int i, ret = 0, resample_changed;
1875 int frame_available = 1;
1877 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1878 return AVERROR(ENOMEM);
1880 avcodec_get_frame_defaults(ist->decoded_frame);
1881 decoded_frame = ist->decoded_frame;
1882 pkt->pts = *pkt_pts;
1883 pkt->dts = ist->last_dts;
1884 *pkt_pts = AV_NOPTS_VALUE;
1886 ret = avcodec_decode_video2(ist->st->codec,
1887 decoded_frame, got_output, pkt);
1891 quality = same_quant ? decoded_frame->quality : 0;
1893 /* no picture yet */
1896 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1897 decoded_frame->pkt_dts);
1899 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1901 rate_emu_sleep(ist);
1903 if (ist->st->sample_aspect_ratio.num)
1904 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1906 resample_changed = ist->resample_width != decoded_frame->width ||
1907 ist->resample_height != decoded_frame->height ||
1908 ist->resample_pix_fmt != decoded_frame->format;
1909 if (resample_changed) {
1910 av_log(NULL, AV_LOG_INFO,
1911 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1912 ist->file_index, ist->st->index,
1913 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1914 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1916 ist->resample_width = decoded_frame->width;
1917 ist->resample_height = decoded_frame->height;
1918 ist->resample_pix_fmt = decoded_frame->format;
1921 for (i = 0; i < nb_output_streams; i++) {
1922 OutputStream *ost = output_streams[i];
1925 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1928 if (resample_changed) {
1929 avfilter_graph_free(&ost->graph);
1930 if (configure_video_filters(ist, ost)) {
1931 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1936 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
1937 FrameBuffer *buf = decoded_frame->opaque;
1938 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1939 decoded_frame->data, decoded_frame->linesize,
1940 AV_PERM_READ | AV_PERM_PRESERVE,
1941 ist->st->codec->width, ist->st->codec->height,
1942 ist->st->codec->pix_fmt);
1944 avfilter_copy_frame_props(fb, decoded_frame);
1945 fb->buf->priv = buf;
1946 fb->buf->free = filter_release_buffer;
1949 av_buffersrc_buffer(ost->input_video_filter, fb);
1951 av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame,
1952 decoded_frame->pts, decoded_frame->sample_aspect_ratio);
1954 if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
1955 ret = AVERROR(ENOMEM);
1958 avcodec_get_frame_defaults(ist->filtered_frame);
1959 filtered_frame = ist->filtered_frame;
1961 frame_available = avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1962 while (frame_available) {
1963 AVFilterBufferRef *picref;
1964 AVRational ist_pts_tb;
1965 if ((ret = get_filtered_video_frame(ost->output_video_filter,
1966 filtered_frame, &picref,
1969 filtered_frame->pts = av_rescale_q(picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1970 if (!ost->frame_aspect_ratio)
1971 ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect;
1973 do_video_out(output_files[ost->file_index]->ctx, ost, filtered_frame, &frame_size,
1974 same_quant ? quality : ost->st->codec->global_quality);
1975 if (vstats_filename && frame_size)
1976 do_video_stats(output_files[ost->file_index]->ctx, ost, frame_size);
1977 frame_available = ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1978 avfilter_unref_buffer(picref);
1983 av_free(buffer_to_free);
1987 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1989 AVSubtitle subtitle;
1990 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1991 &subtitle, got_output, pkt);
1997 rate_emu_sleep(ist);
1999 for (i = 0; i < nb_output_streams; i++) {
2000 OutputStream *ost = output_streams[i];
2002 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2005 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
2008 avsubtitle_free(&subtitle);
2012 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2013 static int output_packet(InputStream *ist, const AVPacket *pkt)
2017 int64_t pkt_pts = AV_NOPTS_VALUE;
2020 if (ist->next_dts == AV_NOPTS_VALUE)
2021 ist->next_dts = ist->last_dts;
2025 av_init_packet(&avpkt);
2033 if (pkt->dts != AV_NOPTS_VALUE)
2034 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2035 if (pkt->pts != AV_NOPTS_VALUE)
2036 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2038 // while we have more to decode or while the decoder did output something on EOF
2039 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2043 ist->last_dts = ist->next_dts;
2045 if (avpkt.size && avpkt.size != pkt->size) {
2046 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2047 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2048 ist->showed_multi_packet_warning = 1;
2051 switch (ist->st->codec->codec_type) {
2052 case AVMEDIA_TYPE_AUDIO:
2053 ret = transcode_audio (ist, &avpkt, &got_output);
2055 case AVMEDIA_TYPE_VIDEO:
2056 ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
2058 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
2059 else if (ist->st->r_frame_rate.num)
2060 ist->next_dts += av_rescale_q(1, (AVRational){ist->st->r_frame_rate.den,
2061 ist->st->r_frame_rate.num},
2063 else if (ist->st->codec->time_base.num != 0) {
2064 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
2065 ist->st->codec->ticks_per_frame;
2066 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
2069 case AVMEDIA_TYPE_SUBTITLE:
2070 ret = transcode_subtitles(ist, &avpkt, &got_output);
2078 // touch data and size only if not EOF
2088 /* handle stream copy */
2089 if (!ist->decoding_needed) {
2090 rate_emu_sleep(ist);
2091 ist->last_dts = ist->next_dts;
2092 switch (ist->st->codec->codec_type) {
2093 case AVMEDIA_TYPE_AUDIO:
2094 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2095 ist->st->codec->sample_rate;
2097 case AVMEDIA_TYPE_VIDEO:
2098 if (ist->st->codec->time_base.num != 0) {
2099 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
2100 ist->next_dts += ((int64_t)AV_TIME_BASE *
2101 ist->st->codec->time_base.num * ticks) /
2102 ist->st->codec->time_base.den;
2107 for (i = 0; pkt && i < nb_output_streams; i++) {
2108 OutputStream *ost = output_streams[i];
2110 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2113 do_streamcopy(ist, ost, pkt);
2119 static void print_sdp(void)
2123 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
2127 for (i = 0; i < nb_output_files; i++)
2128 avc[i] = output_files[i]->ctx;
2130 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
2131 printf("SDP:\n%s\n", sdp);
2136 static void get_default_channel_layouts(OutputStream *ost, InputStream *ist)
2138 char layout_name[256];
2139 AVCodecContext *enc = ost->st->codec;
2140 AVCodecContext *dec = ist->st->codec;
2142 if (!dec->channel_layout) {
2143 if (enc->channel_layout && dec->channels == enc->channels) {
2144 dec->channel_layout = enc->channel_layout;
2146 dec->channel_layout = av_get_default_channel_layout(dec->channels);
2148 if (!dec->channel_layout) {
2149 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
2150 "layout for Input Stream #%d.%d\n", ist->file_index,
2155 av_get_channel_layout_string(layout_name, sizeof(layout_name),
2156 dec->channels, dec->channel_layout);
2157 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
2158 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
2160 if (!enc->channel_layout) {
2161 if (dec->channels == enc->channels) {
2162 enc->channel_layout = dec->channel_layout;
2165 enc->channel_layout = av_get_default_channel_layout(enc->channels);
2167 if (!enc->channel_layout) {
2168 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel layout "
2169 "for Output Stream #%d.%d\n", ost->file_index,
2173 av_get_channel_layout_string(layout_name, sizeof(layout_name),
2174 enc->channels, enc->channel_layout);
2175 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Output Stream "
2176 "#%d.%d : %s\n", ost->file_index, ost->st->index, layout_name);
2181 static int init_input_stream(int ist_index, char *error, int error_len)
2184 InputStream *ist = input_streams[ist_index];
2185 if (ist->decoding_needed) {
2186 AVCodec *codec = ist->dec;
2188 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
2189 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2190 return AVERROR(EINVAL);
2193 /* update requested sample format for the decoder based on the
2194 corresponding encoder sample format */
2195 for (i = 0; i < nb_output_streams; i++) {
2196 OutputStream *ost = output_streams[i];
2197 if (ost->source_index == ist_index) {
2198 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2203 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
2204 ist->st->codec->get_buffer = codec_get_buffer;
2205 ist->st->codec->release_buffer = codec_release_buffer;
2206 ist->st->codec->opaque = ist;
2209 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2210 av_dict_set(&ist->opts, "threads", "auto", 0);
2211 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2212 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
2213 ist->file_index, ist->st->index);
2214 return AVERROR(EINVAL);
2216 assert_codec_experimental(ist->st->codec, 0);
2217 assert_avoptions(ist->opts);
2219 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2220 for (i = 0; i < nb_output_streams; i++) {
2221 OutputStream *ost = output_streams[i];
2222 if (ost->source_index == ist_index) {
2223 if (!ist->st->codec->channel_layout || !ost->st->codec->channel_layout)
2224 get_default_channel_layouts(ost, ist);
2231 ist->last_dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
2232 ist->next_dts = AV_NOPTS_VALUE;
2233 init_pts_correction(&ist->pts_ctx);
2239 static int transcode_init(void)
2241 int ret = 0, i, j, k;
2242 AVFormatContext *oc;
2243 AVCodecContext *codec, *icodec;
2249 /* init framerate emulation */
2250 for (i = 0; i < nb_input_files; i++) {
2251 InputFile *ifile = input_files[i];
2252 if (ifile->rate_emu)
2253 for (j = 0; j < ifile->nb_streams; j++)
2254 input_streams[j + ifile->ist_index]->start = av_gettime();
2257 /* output stream init */
2258 for (i = 0; i < nb_output_files; i++) {
2259 oc = output_files[i]->ctx;
2260 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2261 av_dump_format(oc, i, oc->filename, 1);
2262 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2263 return AVERROR(EINVAL);
2267 /* for each output stream, we compute the right encoding parameters */
2268 for (i = 0; i < nb_output_streams; i++) {
2269 ost = output_streams[i];
2270 oc = output_files[ost->file_index]->ctx;
2271 ist = input_streams[ost->source_index];
2273 if (ost->attachment_filename)
2276 codec = ost->st->codec;
2277 icodec = ist->st->codec;
2279 ost->st->disposition = ist->st->disposition;
2280 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2281 codec->chroma_sample_location = icodec->chroma_sample_location;
2283 if (ost->stream_copy) {
2284 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2286 if (extra_size > INT_MAX) {
2287 return AVERROR(EINVAL);
2290 /* if stream_copy is selected, no need to decode or encode */
2291 codec->codec_id = icodec->codec_id;
2292 codec->codec_type = icodec->codec_type;
2294 if (!codec->codec_tag) {
2295 if (!oc->oformat->codec_tag ||
2296 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2297 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2298 codec->codec_tag = icodec->codec_tag;
2301 codec->bit_rate = icodec->bit_rate;
2302 codec->rc_max_rate = icodec->rc_max_rate;
2303 codec->rc_buffer_size = icodec->rc_buffer_size;
2304 codec->field_order = icodec->field_order;
2305 codec->extradata = av_mallocz(extra_size);
2306 if (!codec->extradata) {
2307 return AVERROR(ENOMEM);
2309 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2310 codec->extradata_size = icodec->extradata_size;
2312 codec->time_base = icodec->time_base;
2313 codec->time_base.num *= icodec->ticks_per_frame;
2314 av_reduce(&codec->time_base.num, &codec->time_base.den,
2315 codec->time_base.num, codec->time_base.den, INT_MAX);
2317 codec->time_base = ist->st->time_base;
2319 switch (codec->codec_type) {
2320 case AVMEDIA_TYPE_AUDIO:
2321 if (audio_volume != 256) {
2322 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2325 codec->channel_layout = icodec->channel_layout;
2326 codec->sample_rate = icodec->sample_rate;
2327 codec->channels = icodec->channels;
2328 codec->frame_size = icodec->frame_size;
2329 codec->audio_service_type = icodec->audio_service_type;
2330 codec->block_align = icodec->block_align;
2332 case AVMEDIA_TYPE_VIDEO:
2333 codec->pix_fmt = icodec->pix_fmt;
2334 codec->width = icodec->width;
2335 codec->height = icodec->height;
2336 codec->has_b_frames = icodec->has_b_frames;
2337 if (!codec->sample_aspect_ratio.num) {
2338 codec->sample_aspect_ratio =
2339 ost->st->sample_aspect_ratio =
2340 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2341 ist->st->codec->sample_aspect_ratio.num ?
2342 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2345 case AVMEDIA_TYPE_SUBTITLE:
2346 codec->width = icodec->width;
2347 codec->height = icodec->height;
2349 case AVMEDIA_TYPE_DATA:
2350 case AVMEDIA_TYPE_ATTACHMENT:
2357 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2359 ist->decoding_needed = 1;
2360 ost->encoding_needed = 1;
2362 switch (codec->codec_type) {
2363 case AVMEDIA_TYPE_AUDIO:
2364 ost->fifo = av_fifo_alloc(1024);
2366 return AVERROR(ENOMEM);
2368 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2370 if (!codec->sample_rate)
2371 codec->sample_rate = icodec->sample_rate;
2372 choose_sample_rate(ost->st, ost->enc);
2373 codec->time_base = (AVRational){ 1, codec->sample_rate };
2375 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2376 codec->sample_fmt = icodec->sample_fmt;
2377 choose_sample_fmt(ost->st, ost->enc);
2379 if (!codec->channels)
2380 codec->channels = icodec->channels;
2381 codec->channel_layout = icodec->channel_layout;
2382 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2383 codec->channel_layout = 0;
2385 ost->audio_resample = codec-> sample_rate != icodec->sample_rate || audio_sync_method > 1;
2386 icodec->request_channels = codec-> channels;
2387 ost->resample_sample_fmt = icodec->sample_fmt;
2388 ost->resample_sample_rate = icodec->sample_rate;
2389 ost->resample_channels = icodec->channels;
2391 case AVMEDIA_TYPE_VIDEO:
2392 if (!codec->width || !codec->height) {
2393 codec->width = icodec->width;
2394 codec->height = icodec->height;
2398 * We want CFR output if and only if one of those is true:
2399 * 1) user specified output framerate with -r
2400 * 2) user specified -vsync cfr
2401 * 3) output format is CFR and the user didn't force vsync to
2402 * something else than CFR
2404 * in such a case, set ost->frame_rate
2406 if (!ost->frame_rate.num &&
2407 (video_sync_method == VSYNC_CFR ||
2408 (video_sync_method == VSYNC_AUTO &&
2409 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
2410 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2411 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2412 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2413 ost->frame_rate = ost->enc->supported_framerates[idx];
2416 if (ost->frame_rate.num) {
2417 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2418 video_sync_method = VSYNC_CFR;
2420 codec->time_base = ist->st->time_base;
2422 if (configure_video_filters(ist, ost)) {
2423 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2427 if (codec->width != icodec->width ||
2428 codec->height != icodec->height ||
2429 codec->pix_fmt != icodec->pix_fmt) {
2430 codec->bits_per_raw_sample = 0;
2434 case AVMEDIA_TYPE_SUBTITLE:
2435 codec->time_base = (AVRational){1, 1000};
2442 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2443 char logfilename[1024];
2446 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2447 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2449 if (!strcmp(ost->enc->name, "libx264")) {
2450 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2452 if (codec->flags & CODEC_FLAG_PASS1) {
2453 f = fopen(logfilename, "wb");
2455 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2456 logfilename, strerror(errno));
2462 size_t logbuffer_size;
2463 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2464 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2468 codec->stats_in = logbuffer;
2475 /* open each encoder */
2476 for (i = 0; i < nb_output_streams; i++) {
2477 ost = output_streams[i];
2478 if (ost->encoding_needed) {
2479 AVCodec *codec = ost->enc;
2480 AVCodecContext *dec = input_streams[ost->source_index]->st->codec;
2482 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d:%d",
2483 ost->st->codec->codec_id, ost->file_index, ost->index);
2484 ret = AVERROR(EINVAL);
2487 if (dec->subtitle_header) {
2488 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2489 if (!ost->st->codec->subtitle_header) {
2490 ret = AVERROR(ENOMEM);
2493 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2494 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2496 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2497 av_dict_set(&ost->opts, "threads", "auto", 0);
2498 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2499 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2500 ost->file_index, ost->index);
2501 ret = AVERROR(EINVAL);
2504 assert_codec_experimental(ost->st->codec, 1);
2505 assert_avoptions(ost->opts);
2506 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2507 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2508 "It takes bits/s as argument, not kbits/s\n");
2509 extra_size += ost->st->codec->extradata_size;
2511 if (ost->st->codec->me_threshold)
2512 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2516 /* init input streams */
2517 for (i = 0; i < nb_input_streams; i++)
2518 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2521 /* discard unused programs */
2522 for (i = 0; i < nb_input_files; i++) {
2523 InputFile *ifile = input_files[i];
2524 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2525 AVProgram *p = ifile->ctx->programs[j];
2526 int discard = AVDISCARD_ALL;
2528 for (k = 0; k < p->nb_stream_indexes; k++)
2529 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2530 discard = AVDISCARD_DEFAULT;
2533 p->discard = discard;
2537 /* open files and write file headers */
2538 for (i = 0; i < nb_output_files; i++) {
2539 oc = output_files[i]->ctx;
2540 oc->interrupt_callback = int_cb;
2541 if (avformat_write_header(oc, &output_files[i]->opts) < 0) {
2542 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2543 ret = AVERROR(EINVAL);
2546 assert_avoptions(output_files[i]->opts);
2547 if (strcmp(oc->oformat->name, "rtp")) {
2553 /* dump the file output parameters - cannot be done before in case
2555 for (i = 0; i < nb_output_files; i++) {
2556 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2559 /* dump the stream mapping */
2560 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2561 for (i = 0; i < nb_output_streams; i++) {
2562 ost = output_streams[i];
2564 if (ost->attachment_filename) {
2565 /* an attached file */
2566 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2567 ost->attachment_filename, ost->file_index, ost->index);
2570 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2571 input_streams[ost->source_index]->file_index,
2572 input_streams[ost->source_index]->st->index,
2575 if (ost->sync_ist != input_streams[ost->source_index])
2576 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2577 ost->sync_ist->file_index,
2578 ost->sync_ist->st->index);
2579 if (ost->stream_copy)
2580 av_log(NULL, AV_LOG_INFO, " (copy)");
2582 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2583 input_streams[ost->source_index]->dec->name : "?",
2584 ost->enc ? ost->enc->name : "?");
2585 av_log(NULL, AV_LOG_INFO, "\n");
2589 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2601 * The following code is the main loop of the file converter
2603 static int transcode(void)
2606 AVFormatContext *is, *os;
2610 int no_packet_count = 0;
2611 int64_t timer_start;
2613 if (!(no_packet = av_mallocz(nb_input_files)))
2616 ret = transcode_init();
2620 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2623 timer_start = av_gettime();
2625 for (; received_sigterm == 0;) {
2626 int file_index, ist_index;
2631 ipts_min = INT64_MAX;
2634 /* select the stream that we must read now by looking at the
2635 smallest output pts */
2637 for (i = 0; i < nb_output_streams; i++) {
2641 ost = output_streams[i];
2642 of = output_files[ost->file_index];
2643 os = output_files[ost->file_index]->ctx;
2644 ist = input_streams[ost->source_index];
2645 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2646 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2648 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2649 ipts = ist->last_dts;
2650 if (!input_files[ist->file_index]->eof_reached) {
2651 if (ipts < ipts_min) {
2654 file_index = ist->file_index;
2656 if (opts < opts_min) {
2658 if (!input_sync) file_index = ist->file_index;
2661 if (ost->frame_number >= ost->max_frames) {
2663 for (j = 0; j < of->ctx->nb_streams; j++)
2664 output_streams[of->ost_index + j]->is_past_recording_time = 1;
2668 /* if none, if is finished */
2669 if (file_index < 0) {
2670 if (no_packet_count) {
2671 no_packet_count = 0;
2672 memset(no_packet, 0, nb_input_files);
2679 /* read a frame from it and output it in the fifo */
2680 is = input_files[file_index]->ctx;
2681 ret = av_read_frame(is, &pkt);
2682 if (ret == AVERROR(EAGAIN)) {
2683 no_packet[file_index] = 1;
2688 input_files[file_index]->eof_reached = 1;
2695 no_packet_count = 0;
2696 memset(no_packet, 0, nb_input_files);
2699 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2700 is->streams[pkt.stream_index]);
2702 /* the following test is needed in case new streams appear
2703 dynamically in stream : we ignore them */
2704 if (pkt.stream_index >= input_files[file_index]->nb_streams)
2705 goto discard_packet;
2706 ist_index = input_files[file_index]->ist_index + pkt.stream_index;
2707 ist = input_streams[ist_index];
2709 goto discard_packet;
2711 if (pkt.dts != AV_NOPTS_VALUE)
2712 pkt.dts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2713 if (pkt.pts != AV_NOPTS_VALUE)
2714 pkt.pts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2716 if (pkt.pts != AV_NOPTS_VALUE)
2717 pkt.pts *= ist->ts_scale;
2718 if (pkt.dts != AV_NOPTS_VALUE)
2719 pkt.dts *= ist->ts_scale;
2721 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
2723 // pkt.dts, input_files[ist->file_index].ts_offset,
2724 // ist->st->codec->codec_type);
2725 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE
2726 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2727 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2728 int64_t delta = pkt_dts - ist->next_dts;
2729 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2730 input_files[ist->file_index]->ts_offset -= delta;
2731 av_log(NULL, AV_LOG_DEBUG,
2732 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2733 delta, input_files[ist->file_index]->ts_offset);
2734 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2735 if (pkt.pts != AV_NOPTS_VALUE)
2736 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2740 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2741 if (output_packet(ist, &pkt) < 0) {
2743 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2744 ist->file_index, ist->st->index);
2747 av_free_packet(&pkt);
2752 av_free_packet(&pkt);
2754 /* dump report by using the output first video and audio streams */
2755 print_report(0, timer_start);
2758 /* at the end of stream, we must flush the decoder buffers */
2759 for (i = 0; i < nb_input_streams; i++) {
2760 ist = input_streams[i];
2761 if (ist->decoding_needed) {
2762 output_packet(ist, NULL);
2769 /* write the trailer if needed and close file */
2770 for (i = 0; i < nb_output_files; i++) {
2771 os = output_files[i]->ctx;
2772 av_write_trailer(os);
2775 /* dump report by using the first video and audio streams */
2776 print_report(1, timer_start);
2778 /* close each encoder */
2779 for (i = 0; i < nb_output_streams; i++) {
2780 ost = output_streams[i];
2781 if (ost->encoding_needed) {
2782 av_freep(&ost->st->codec->stats_in);
2783 avcodec_close(ost->st->codec);
2785 avfilter_graph_free(&ost->graph);
2788 /* close each decoder */
2789 for (i = 0; i < nb_input_streams; i++) {
2790 ist = input_streams[i];
2791 if (ist->decoding_needed) {
2792 avcodec_close(ist->st->codec);
2800 av_freep(&no_packet);
2802 if (output_streams) {
2803 for (i = 0; i < nb_output_streams; i++) {
2804 ost = output_streams[i];
2806 if (ost->stream_copy)
2807 av_freep(&ost->st->codec->extradata);
2809 fclose(ost->logfile);
2810 ost->logfile = NULL;
2812 av_fifo_free(ost->fifo); /* works even if fifo is not
2813 initialized but set to zero */
2814 av_freep(&ost->st->codec->subtitle_header);
2815 av_free(ost->forced_kf_pts);
2817 audio_resample_close(ost->resample);
2818 if (ost->reformat_ctx)
2819 av_audio_convert_free(ost->reformat_ctx);
2820 av_dict_free(&ost->opts);
2827 static double parse_frame_aspect_ratio(const char *arg)
2834 p = strchr(arg, ':');
2836 x = strtol(arg, &end, 10);
2838 y = strtol(end + 1, &end, 10);
2840 ar = (double)x / (double)y;
2842 ar = strtod(arg, NULL);
2845 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
2851 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2853 return parse_option(o, "codec:a", arg, options);
2856 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2858 return parse_option(o, "codec:v", arg, options);
2861 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2863 return parse_option(o, "codec:s", arg, options);
2866 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2868 return parse_option(o, "codec:d", arg, options);
2871 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2873 StreamMap *m = NULL;
2874 int i, negative = 0, file_idx;
2875 int sync_file_idx = -1, sync_stream_idx;
2883 map = av_strdup(arg);
2885 /* parse sync stream first, just pick first matching stream */
2886 if (sync = strchr(map, ',')) {
2888 sync_file_idx = strtol(sync + 1, &sync, 0);
2889 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2890 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
2895 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
2896 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
2897 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
2898 sync_stream_idx = i;
2901 if (i == input_files[sync_file_idx]->nb_streams) {
2902 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
2903 "match any streams.\n", arg);
2909 file_idx = strtol(map, &p, 0);
2910 if (file_idx >= nb_input_files || file_idx < 0) {
2911 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
2915 /* disable some already defined maps */
2916 for (i = 0; i < o->nb_stream_maps; i++) {
2917 m = &o->stream_maps[i];
2918 if (file_idx == m->file_index &&
2919 check_stream_specifier(input_files[m->file_index]->ctx,
2920 input_files[m->file_index]->ctx->streams[m->stream_index],
2921 *p == ':' ? p + 1 : p) > 0)
2925 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
2926 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
2927 *p == ':' ? p + 1 : p) <= 0)
2929 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2930 &o->nb_stream_maps, o->nb_stream_maps + 1);
2931 m = &o->stream_maps[o->nb_stream_maps - 1];
2933 m->file_index = file_idx;
2934 m->stream_index = i;
2936 if (sync_file_idx >= 0) {
2937 m->sync_file_index = sync_file_idx;
2938 m->sync_stream_index = sync_stream_idx;
2940 m->sync_file_index = file_idx;
2941 m->sync_stream_index = i;
2946 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
2954 static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
2956 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
2957 &o->nb_attachments, o->nb_attachments + 1);
2958 o->attachments[o->nb_attachments - 1] = arg;
2963 * Parse a metadata specifier in arg.
2964 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
2965 * @param index for type c/p, chapter/program index is written here
2966 * @param stream_spec for type s, the stream specifier is written here
2968 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
2976 if (*(++arg) && *arg != ':') {
2977 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
2980 *stream_spec = *arg == ':' ? arg + 1 : "";
2984 if (*(++arg) == ':')
2985 *index = strtol(++arg, NULL, 0);
2988 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
2995 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
2997 AVDictionary **meta_in = NULL;
2998 AVDictionary **meta_out;
3000 char type_in, type_out;
3001 const char *istream_spec = NULL, *ostream_spec = NULL;
3002 int idx_in = 0, idx_out = 0;
3004 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
3005 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
3007 if (type_in == 'g' || type_out == 'g')
3008 o->metadata_global_manual = 1;
3009 if (type_in == 's' || type_out == 's')
3010 o->metadata_streams_manual = 1;
3011 if (type_in == 'c' || type_out == 'c')
3012 o->metadata_chapters_manual = 1;
3014 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3015 if ((index) < 0 || (index) >= (nb_elems)) {\
3016 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
3021 #define SET_DICT(type, meta, context, index)\
3024 meta = &context->metadata;\
3027 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
3028 meta = &context->chapters[index]->metadata;\
3031 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
3032 meta = &context->programs[index]->metadata;\
3036 SET_DICT(type_in, meta_in, ic, idx_in);
3037 SET_DICT(type_out, meta_out, oc, idx_out);
3039 /* for input streams choose first matching stream */
3040 if (type_in == 's') {
3041 for (i = 0; i < ic->nb_streams; i++) {
3042 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3043 meta_in = &ic->streams[i]->metadata;
3049 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3054 if (type_out == 's') {
3055 for (i = 0; i < oc->nb_streams; i++) {
3056 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3057 meta_out = &oc->streams[i]->metadata;
3058 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3063 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3068 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
3070 const char *codec_string = encoder ? "encoder" : "decoder";
3074 avcodec_find_encoder_by_name(name) :
3075 avcodec_find_decoder_by_name(name);
3077 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
3080 if (codec->type != type) {
3081 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
3087 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
3089 char *codec_name = NULL;
3091 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
3093 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3094 st->codec->codec_id = codec->id;
3097 return avcodec_find_decoder(st->codec->codec_id);
3101 * Add all the streams from the given input file to the global
3102 * list of input streams.
3104 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
3108 for (i = 0; i < ic->nb_streams; i++) {
3109 AVStream *st = ic->streams[i];
3110 AVCodecContext *dec = st->codec;
3111 InputStream *ist = av_mallocz(sizeof(*ist));
3116 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3117 input_streams[nb_input_streams - 1] = ist;
3120 ist->file_index = nb_input_files;
3122 st->discard = AVDISCARD_ALL;
3123 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3125 ist->ts_scale = 1.0;
3126 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
3128 ist->dec = choose_decoder(o, ic, st);
3130 switch (dec->codec_type) {
3131 case AVMEDIA_TYPE_VIDEO:
3133 dec->flags |= CODEC_FLAG_EMU_EDGE;
3134 dec->height >>= dec->lowres;
3135 dec->width >>= dec->lowres;
3138 ist->resample_height = dec->height;
3139 ist->resample_width = dec->width;
3140 ist->resample_pix_fmt = dec->pix_fmt;
3143 case AVMEDIA_TYPE_AUDIO:
3144 case AVMEDIA_TYPE_DATA:
3145 case AVMEDIA_TYPE_SUBTITLE:
3146 case AVMEDIA_TYPE_ATTACHMENT:
3147 case AVMEDIA_TYPE_UNKNOWN:
3155 static void assert_file_overwrite(const char *filename)
3157 if (!file_overwrite &&
3158 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3159 av_strstart(filename, "file:", NULL))) {
3160 if (avio_check(filename, 0) == 0) {
3162 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3164 if (!read_yesno()) {
3165 fprintf(stderr, "Not overwriting - exiting\n");
3170 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3177 static void dump_attachment(AVStream *st, const char *filename)
3180 AVIOContext *out = NULL;
3181 AVDictionaryEntry *e;
3183 if (!st->codec->extradata_size) {
3184 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3185 nb_input_files - 1, st->index);
3188 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3189 filename = e->value;
3191 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3192 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3196 assert_file_overwrite(filename);
3198 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
3199 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3204 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3209 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
3211 AVFormatContext *ic;
3212 AVInputFormat *file_iformat = NULL;
3216 AVDictionary **opts;
3217 int orig_nb_streams; // number of streams before avformat_find_stream_info
3220 if (!(file_iformat = av_find_input_format(o->format))) {
3221 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
3226 if (!strcmp(filename, "-"))
3229 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3230 !strcmp(filename, "/dev/stdin");
3232 /* get default parameters from command line */
3233 ic = avformat_alloc_context();
3235 print_error(filename, AVERROR(ENOMEM));
3238 if (o->nb_audio_sample_rate) {
3239 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
3240 av_dict_set(&format_opts, "sample_rate", buf, 0);
3242 if (o->nb_audio_channels) {
3243 snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
3244 av_dict_set(&format_opts, "channels", buf, 0);
3246 if (o->nb_frame_rates) {
3247 av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
3249 if (o->nb_frame_sizes) {
3250 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
3252 if (o->nb_frame_pix_fmts)
3253 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
3255 ic->flags |= AVFMT_FLAG_NONBLOCK;
3256 ic->interrupt_callback = int_cb;
3258 /* open the input file with generic libav function */
3259 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3261 print_error(filename, err);
3264 assert_avoptions(format_opts);
3266 /* apply forced codec ids */
3267 for (i = 0; i < ic->nb_streams; i++)
3268 choose_decoder(o, ic, ic->streams[i]);
3270 /* Set AVCodecContext options for avformat_find_stream_info */
3271 opts = setup_find_stream_info_opts(ic, codec_opts);
3272 orig_nb_streams = ic->nb_streams;
3274 /* If not enough info to get the stream parameters, we decode the
3275 first frames to get it. (used in mpeg case for example) */
3276 ret = avformat_find_stream_info(ic, opts);
3278 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
3279 avformat_close_input(&ic);
3283 timestamp = o->start_time;
3284 /* add the stream start time */
3285 if (ic->start_time != AV_NOPTS_VALUE)
3286 timestamp += ic->start_time;
3288 /* if seeking requested, we execute it */
3289 if (o->start_time != 0) {
3290 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3292 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
3293 filename, (double)timestamp / AV_TIME_BASE);
3297 /* update the current parameters so that they match the one of the input stream */
3298 add_input_streams(o, ic);
3300 /* dump the file content */
3301 av_dump_format(ic, nb_input_files, filename, 0);
3303 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3304 if (!(input_files[nb_input_files - 1] = av_mallocz(sizeof(*input_files[0]))))
3307 input_files[nb_input_files - 1]->ctx = ic;
3308 input_files[nb_input_files - 1]->ist_index = nb_input_streams - ic->nb_streams;
3309 input_files[nb_input_files - 1]->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3310 input_files[nb_input_files - 1]->nb_streams = ic->nb_streams;
3311 input_files[nb_input_files - 1]->rate_emu = o->rate_emu;
3313 for (i = 0; i < o->nb_dump_attachment; i++) {
3316 for (j = 0; j < ic->nb_streams; j++) {
3317 AVStream *st = ic->streams[j];
3319 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3320 dump_attachment(st, o->dump_attachment[i].u.str);
3324 for (i = 0; i < orig_nb_streams; i++)
3325 av_dict_free(&opts[i]);
3332 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3333 AVCodecContext *avctx)
3339 for (p = kf; *p; p++)
3342 ost->forced_kf_count = n;
3343 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3344 if (!ost->forced_kf_pts) {
3345 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3348 for (i = 0; i < n; i++) {
3349 p = i ? strchr(p, ',') + 1 : kf;
3350 t = parse_time_or_die("force_key_frames", p, 1);
3351 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3355 static uint8_t *get_line(AVIOContext *s)
3361 if (avio_open_dyn_buf(&line) < 0) {
3362 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
3366 while ((c = avio_r8(s)) && c != '\n')
3369 avio_close_dyn_buf(line, &buf);
3374 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
3377 char filename[1000];
3378 const char *base[3] = { getenv("AVCONV_DATADIR"),
3383 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
3387 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
3388 i != 1 ? "" : "/.avconv", codec_name, preset_name);
3389 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3392 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
3393 i != 1 ? "" : "/.avconv", preset_name);
3394 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3400 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
3402 char *codec_name = NULL;
3404 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
3406 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
3407 NULL, ost->st->codec->codec_type);
3408 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
3409 } else if (!strcmp(codec_name, "copy"))
3410 ost->stream_copy = 1;
3412 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
3413 ost->st->codec->codec_id = ost->enc->id;
3417 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
3420 AVStream *st = avformat_new_stream(oc, NULL);
3421 int idx = oc->nb_streams - 1, ret = 0;
3422 char *bsf = NULL, *next, *codec_tag = NULL;
3423 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
3425 char *buf = NULL, *arg = NULL, *preset = NULL;
3426 AVIOContext *s = NULL;
3429 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
3433 if (oc->nb_streams - 1 < o->nb_streamid_map)
3434 st->id = o->streamid_map[oc->nb_streams - 1];
3436 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3437 nb_output_streams + 1);
3438 if (!(ost = av_mallocz(sizeof(*ost))))
3440 output_streams[nb_output_streams - 1] = ost;
3442 ost->file_index = nb_output_files;
3445 st->codec->codec_type = type;
3446 choose_encoder(o, oc, ost);
3448 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3451 avcodec_get_context_defaults3(st->codec, ost->enc);
3452 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3454 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
3455 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
3458 if (!buf[0] || buf[0] == '#') {
3462 if (!(arg = strchr(buf, '='))) {
3463 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
3467 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
3469 } while (!s->eof_reached);
3473 av_log(NULL, AV_LOG_FATAL,
3474 "Preset %s specified for stream %d:%d, but could not be opened.\n",
3475 preset, ost->file_index, ost->index);
3479 ost->max_frames = INT64_MAX;
3480 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
3482 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
3484 if (next = strchr(bsf, ','))
3486 if (!(bsfc = av_bitstream_filter_init(bsf))) {
3487 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
3491 bsfc_prev->next = bsfc;
3493 ost->bitstream_filters = bsfc;
3499 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
3501 uint32_t tag = strtol(codec_tag, &next, 0);
3503 tag = AV_RL32(codec_tag);
3504 st->codec->codec_tag = tag;
3507 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
3508 if (qscale >= 0 || same_quant) {
3509 st->codec->flags |= CODEC_FLAG_QSCALE;
3510 st->codec->global_quality = FF_QP2LAMBDA * qscale;
3513 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
3514 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
3516 av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
3518 ost->pix_fmts[0] = ost->pix_fmts[1] = PIX_FMT_NONE;
3523 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3526 const char *p = str;
3533 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3540 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3544 AVCodecContext *video_enc;
3546 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3548 video_enc = st->codec;
3550 if (!ost->stream_copy) {
3551 const char *p = NULL;
3552 char *forced_key_frames = NULL, *frame_rate = NULL, *frame_size = NULL;
3553 char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
3554 char *intra_matrix = NULL, *inter_matrix = NULL, *filters = NULL;
3557 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
3558 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
3559 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
3563 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
3564 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
3565 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
3569 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
3570 if (frame_aspect_ratio)
3571 ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
3573 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
3574 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
3575 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
3578 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3580 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
3582 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
3583 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
3586 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
3588 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
3590 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
3591 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
3594 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
3597 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
3598 for (i = 0; p; i++) {
3600 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
3602 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
3605 video_enc->rc_override =
3606 av_realloc(video_enc->rc_override,
3607 sizeof(RcOverride) * (i + 1));
3608 video_enc->rc_override[i].start_frame = start;
3609 video_enc->rc_override[i].end_frame = end;
3611 video_enc->rc_override[i].qscale = q;
3612 video_enc->rc_override[i].quality_factor = 1.0;
3615 video_enc->rc_override[i].qscale = 0;
3616 video_enc->rc_override[i].quality_factor = -q/100.0;
3621 video_enc->rc_override_count = i;
3622 if (!video_enc->rc_initial_buffer_occupancy)
3623 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size * 3 / 4;
3624 video_enc->intra_dc_precision = intra_dc_precision - 8;
3629 video_enc->flags |= CODEC_FLAG_PASS1;
3631 video_enc->flags |= CODEC_FLAG_PASS2;
3635 MATCH_PER_STREAM_OPT(forced_key_frames, str, forced_key_frames, oc, st);
3636 if (forced_key_frames)
3637 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3639 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
3641 ost->top_field_first = -1;
3642 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
3644 MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
3646 ost->avfilter = av_strdup(filters);
3648 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
3654 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
3658 AVCodecContext *audio_enc;
3660 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
3663 audio_enc = st->codec;
3664 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3666 if (!ost->stream_copy) {
3667 char *sample_fmt = NULL;
3669 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
3671 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
3673 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
3674 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
3678 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
3684 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
3688 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
3689 if (!ost->stream_copy) {
3690 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
3697 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
3699 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
3700 ost->stream_copy = 1;
3704 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
3708 AVCodecContext *subtitle_enc;
3710 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);