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 SinkContext sink_ctx = { .pix_fmts = choose_pixel_fmts(ost) };
565 AVRational sample_aspect_ratio;
569 ost->graph = avfilter_graph_alloc();
571 if (ist->st->sample_aspect_ratio.num) {
572 sample_aspect_ratio = ist->st->sample_aspect_ratio;
574 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
576 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
577 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
578 sample_aspect_ratio.num, sample_aspect_ratio.den);
580 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
581 "src", args, NULL, ost->graph);
584 ret = avfilter_graph_create_filter(&ost->output_video_filter, &sink,
585 "out", NULL, &sink_ctx, ost->graph);
588 last_filter = ost->input_video_filter;
590 if (codec->width || codec->height) {
591 snprintf(args, 255, "%d:%d:flags=0x%X",
594 (unsigned)ost->sws_flags);
595 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
596 NULL, args, NULL, ost->graph)) < 0)
598 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
600 last_filter = filter;
603 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
604 ost->graph->scale_sws_opts = av_strdup(args);
607 AVFilterInOut *outputs = avfilter_inout_alloc();
608 AVFilterInOut *inputs = avfilter_inout_alloc();
610 outputs->name = av_strdup("in");
611 outputs->filter_ctx = last_filter;
612 outputs->pad_idx = 0;
613 outputs->next = NULL;
615 inputs->name = av_strdup("out");
616 inputs->filter_ctx = ost->output_video_filter;
620 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
623 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
627 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
630 codec->width = ost->output_video_filter->inputs[0]->w;
631 codec->height = ost->output_video_filter->inputs[0]->h;
632 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
633 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
634 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
635 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
636 codec->pix_fmt = ost->output_video_filter->inputs[0]->format;
641 static void term_exit(void)
643 av_log(NULL, AV_LOG_QUIET, "");
646 static volatile int received_sigterm = 0;
647 static volatile int received_nb_signals = 0;
650 sigterm_handler(int sig)
652 received_sigterm = sig;
653 received_nb_signals++;
657 static void term_init(void)
659 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
660 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
662 signal(SIGXCPU, sigterm_handler);
666 static int decode_interrupt_cb(void *ctx)
668 return received_nb_signals > 1;
671 static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
673 void exit_program(int ret)
678 for (i = 0; i < nb_output_files; i++) {
679 AVFormatContext *s = output_files[i]->ctx;
680 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
682 avformat_free_context(s);
683 av_dict_free(&output_files[i]->opts);
684 av_freep(&output_files[i]);
686 for (i = 0; i < nb_output_streams; i++) {
687 AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
689 AVBitStreamFilterContext *next = bsfc->next;
690 av_bitstream_filter_close(bsfc);
693 output_streams[i]->bitstream_filters = NULL;
695 if (output_streams[i]->output_frame) {
696 AVFrame *frame = output_streams[i]->output_frame;
697 if (frame->extended_data != frame->data)
698 av_freep(&frame->extended_data);
702 av_freep(&output_streams[i]->avfilter);
703 av_freep(&output_streams[i]);
705 for (i = 0; i < nb_input_files; i++) {
706 avformat_close_input(&input_files[i]->ctx);
707 av_freep(&input_files[i]);
709 for (i = 0; i < nb_input_streams; i++) {
710 av_freep(&input_streams[i]->decoded_frame);
711 av_freep(&input_streams[i]->filtered_frame);
712 av_dict_free(&input_streams[i]->opts);
713 free_buffer_pool(input_streams[i]);
714 av_freep(&input_streams[i]);
719 av_free(vstats_filename);
721 av_freep(&input_streams);
722 av_freep(&input_files);
723 av_freep(&output_streams);
724 av_freep(&output_files);
728 allocated_audio_buf_size = 0;
730 allocated_async_buf_size = 0;
733 avformat_network_deinit();
735 if (received_sigterm) {
736 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
737 (int) received_sigterm);
744 static void assert_avoptions(AVDictionary *m)
746 AVDictionaryEntry *t;
747 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
748 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
753 static void assert_codec_experimental(AVCodecContext *c, int encoder)
755 const char *codec_string = encoder ? "encoder" : "decoder";
757 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
758 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
759 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
760 "results.\nAdd '-strict experimental' if you want to use it.\n",
761 codec_string, c->codec->name);
762 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
763 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
764 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
765 codec_string, codec->name);
770 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
772 if (codec && codec->sample_fmts) {
773 const enum AVSampleFormat *p = codec->sample_fmts;
774 for (; *p != -1; p++) {
775 if (*p == st->codec->sample_fmt)
779 av_log(NULL, AV_LOG_WARNING,
780 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
781 av_get_sample_fmt_name(st->codec->sample_fmt),
783 av_get_sample_fmt_name(codec->sample_fmts[0]));
784 st->codec->sample_fmt = codec->sample_fmts[0];
790 * Update the requested input sample format based on the output sample format.
791 * This is currently only used to request float output from decoders which
792 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
793 * Ideally this will be removed in the future when decoders do not do format
794 * conversion and only output in their native format.
796 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
799 /* if sample formats match or a decoder sample format has already been
800 requested, just return */
801 if (enc->sample_fmt == dec->sample_fmt ||
802 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
805 /* if decoder supports more than one output format */
806 if (dec_codec && dec_codec->sample_fmts &&
807 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
808 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
809 const enum AVSampleFormat *p;
810 int min_dec = -1, min_inc = -1;
812 /* find a matching sample format in the encoder */
813 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
814 if (*p == enc->sample_fmt) {
815 dec->request_sample_fmt = *p;
817 } else if (*p > enc->sample_fmt) {
818 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
820 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
823 /* if none match, provide the one that matches quality closest */
824 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
825 enc->sample_fmt - min_dec;
829 static void choose_sample_rate(AVStream *st, AVCodec *codec)
831 if (codec && codec->supported_samplerates) {
832 const int *p = codec->supported_samplerates;
834 int best_dist = INT_MAX;
836 int dist = abs(st->codec->sample_rate - *p);
837 if (dist < best_dist) {
843 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
845 st->codec->sample_rate = best;
850 get_sync_ipts(const OutputStream *ost, int64_t pts)
852 OutputFile *of = output_files[ost->file_index];
853 return (double)(pts - of->start_time) / AV_TIME_BASE;
856 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
858 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
859 AVCodecContext *avctx = ost->st->codec;
863 * Audio encoders may split the packets -- #frames in != #packets out.
864 * But there is no reordering, so we can limit the number of output packets
865 * by simply dropping them here.
866 * Counting encoded video frames needs to be done separately because of
867 * reordering, see do_video_out()
869 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
870 if (ost->frame_number >= ost->max_frames) {
878 AVPacket new_pkt = *pkt;
879 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
880 &new_pkt.data, &new_pkt.size,
881 pkt->data, pkt->size,
882 pkt->flags & AV_PKT_FLAG_KEY);
885 new_pkt.destruct = av_destruct_packet;
887 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
888 bsfc->filter->name, pkt->stream_index,
889 avctx->codec ? avctx->codec->name : "copy");
899 pkt->stream_index = ost->index;
900 ret = av_interleaved_write_frame(s, pkt);
902 print_error("av_interleaved_write_frame()", ret);
907 static int check_recording_time(OutputStream *ost)
909 OutputFile *of = output_files[ost->file_index];
911 if (of->recording_time != INT64_MAX &&
912 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
913 AV_TIME_BASE_Q) >= 0) {
914 ost->is_past_recording_time = 1;
920 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
922 int fill_char = 0x00;
923 if (sample_fmt == AV_SAMPLE_FMT_U8)
925 memset(buf, fill_char, size);
928 static int encode_audio_frame(AVFormatContext *s, OutputStream *ost,
929 const uint8_t *buf, int buf_size)
931 AVCodecContext *enc = ost->st->codec;
932 AVFrame *frame = NULL;
936 av_init_packet(&pkt);
941 if (!ost->output_frame) {
942 ost->output_frame = avcodec_alloc_frame();
943 if (!ost->output_frame) {
944 av_log(NULL, AV_LOG_FATAL, "out-of-memory in encode_audio_frame()\n");
948 frame = ost->output_frame;
949 if (frame->extended_data != frame->data)
950 av_freep(&frame->extended_data);
951 avcodec_get_frame_defaults(frame);
953 frame->nb_samples = buf_size /
954 (enc->channels * av_get_bytes_per_sample(enc->sample_fmt));
955 if ((ret = avcodec_fill_audio_frame(frame, enc->channels, enc->sample_fmt,
956 buf, buf_size, 1)) < 0) {
957 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
961 if (!check_recording_time(ost))
964 frame->pts = ost->sync_opts;
965 ost->sync_opts += frame->nb_samples;
969 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
970 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
975 if (pkt.pts != AV_NOPTS_VALUE)
976 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
977 if (pkt.dts != AV_NOPTS_VALUE)
978 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
979 if (pkt.duration > 0)
980 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
982 write_frame(s, &pkt, ost);
984 audio_size += pkt.size;
990 static int alloc_audio_output_buf(AVCodecContext *dec, AVCodecContext *enc,
993 int64_t audio_buf_samples;
996 /* calculate required number of samples to allocate */
997 audio_buf_samples = ((int64_t)nb_samples * enc->sample_rate + dec->sample_rate) /
999 audio_buf_samples = 4 * audio_buf_samples + 16; // safety factors for resampling
1000 audio_buf_samples = FFMAX(audio_buf_samples, enc->frame_size);
1001 if (audio_buf_samples > INT_MAX)
1002 return AVERROR(EINVAL);
1004 audio_buf_size = av_samples_get_buffer_size(NULL, enc->channels,
1006 enc->sample_fmt, 0);
1007 if (audio_buf_size < 0)
1008 return audio_buf_size;
1010 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
1012 return AVERROR(ENOMEM);
1017 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
1018 InputStream *ist, AVFrame *decoded_frame)
1022 int size_out, frame_bytes, resample_changed;
1023 AVCodecContext *enc = ost->st->codec;
1024 AVCodecContext *dec = ist->st->codec;
1025 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1026 int isize = av_get_bytes_per_sample(dec->sample_fmt);
1027 uint8_t *buf = decoded_frame->data[0];
1028 int size = decoded_frame->nb_samples * dec->channels * isize;
1030 if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples) < 0) {
1031 av_log(NULL, AV_LOG_FATAL, "Error allocating audio buffer\n");
1035 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
1036 ost->audio_resample = 1;
1038 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
1039 ost->resample_channels != dec->channels ||
1040 ost->resample_sample_rate != dec->sample_rate;
1042 if ((ost->audio_resample && !ost->resample) || resample_changed) {
1043 if (resample_changed) {
1044 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",
1045 ist->file_index, ist->st->index,
1046 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
1047 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
1048 ost->resample_sample_fmt = dec->sample_fmt;
1049 ost->resample_channels = dec->channels;
1050 ost->resample_sample_rate = dec->sample_rate;
1052 audio_resample_close(ost->resample);
1054 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
1055 if (audio_sync_method <= 1 &&
1056 ost->resample_sample_fmt == enc->sample_fmt &&
1057 ost->resample_channels == enc->channels &&
1058 ost->resample_sample_rate == enc->sample_rate) {
1059 ost->resample = NULL;
1060 ost->audio_resample = 0;
1061 } else if (ost->audio_resample) {
1062 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
1063 av_log(NULL, AV_LOG_WARNING, "Using s16 intermediate sample format for resampling\n");
1064 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
1065 enc->sample_rate, dec->sample_rate,
1066 enc->sample_fmt, dec->sample_fmt,
1068 if (!ost->resample) {
1069 av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
1070 dec->channels, dec->sample_rate,
1071 enc->channels, enc->sample_rate);
1077 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
1078 if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt &&
1079 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt) != ost->reformat_pair) {
1080 if (ost->reformat_ctx)
1081 av_audio_convert_free(ost->reformat_ctx);
1082 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
1083 dec->sample_fmt, 1, NULL, 0);
1084 if (!ost->reformat_ctx) {
1085 av_log(NULL, AV_LOG_FATAL, "Cannot convert %s sample format to %s sample format\n",
1086 av_get_sample_fmt_name(dec->sample_fmt),
1087 av_get_sample_fmt_name(enc->sample_fmt));
1090 ost->reformat_pair = MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
1093 if (audio_sync_method > 0) {
1094 double delta = get_sync_ipts(ost, ist->last_dts) * enc->sample_rate - ost->sync_opts -
1095 av_fifo_size(ost->fifo) / (enc->channels * osize);
1096 int idelta = delta * dec->sample_rate / enc->sample_rate;
1097 int byte_delta = idelta * isize * dec->channels;
1099 // FIXME resample delay
1100 if (fabs(delta) > 50) {
1101 if (ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate) {
1102 if (byte_delta < 0) {
1103 byte_delta = FFMAX(byte_delta, -size);
1106 av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
1107 -byte_delta / (isize * dec->channels));
1112 av_fast_malloc(&async_buf, &allocated_async_buf_size,
1115 av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
1119 if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples + idelta) < 0) {
1120 av_log(NULL, AV_LOG_FATAL, "Error allocating audio buffer\n");
1125 generate_silence(async_buf, dec->sample_fmt, byte_delta);
1126 memcpy(async_buf + byte_delta, buf, size);
1129 av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
1131 } else if (audio_sync_method > 1) {
1132 int comp = av_clip(delta, -audio_sync_method, audio_sync_method);
1133 av_assert0(ost->audio_resample);
1134 av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
1135 delta, comp, enc->sample_rate);
1136 // 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));
1137 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
1140 } else if (audio_sync_method == 0)
1141 ost->sync_opts = lrintf(get_sync_ipts(ost, ist->last_dts) * enc->sample_rate) -
1142 av_fifo_size(ost->fifo) / (enc->channels * osize); // FIXME wrong
1144 if (ost->audio_resample) {
1146 size_out = audio_resample(ost->resample,
1147 (short *)buftmp, (short *)buf,
1148 size / (dec->channels * isize));
1149 size_out = size_out * enc->channels * osize;
1155 if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt) {
1156 const void *ibuf[6] = { buftmp };
1157 void *obuf[6] = { audio_buf };
1158 int istride[6] = { isize };
1159 int ostride[6] = { osize };
1160 int len = size_out / istride[0];
1161 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len) < 0) {
1162 printf("av_audio_convert() failed\n");
1168 size_out = len * osize;
1171 /* now encode as many frames as possible */
1172 if (!(enc->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1173 /* output resampled raw samples */
1174 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
1175 av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
1178 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
1180 frame_bytes = enc->frame_size * osize * enc->channels;
1182 while (av_fifo_size(ost->fifo) >= frame_bytes) {
1183 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
1184 encode_audio_frame(s, ost, audio_buf, frame_bytes);
1187 encode_audio_frame(s, ost, buftmp, size_out);
1191 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1193 AVCodecContext *dec;
1194 AVPicture *picture2;
1195 AVPicture picture_tmp;
1198 dec = ist->st->codec;
1200 /* deinterlace : must be done before any resize */
1201 if (do_deinterlace) {
1204 /* create temporary picture */
1205 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1206 buf = av_malloc(size);
1210 picture2 = &picture_tmp;
1211 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1213 if (avpicture_deinterlace(picture2, picture,
1214 dec->pix_fmt, dec->width, dec->height) < 0) {
1215 /* if error, do not deinterlace */
1216 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
1225 if (picture != picture2)
1226 *picture = *picture2;
1230 static void do_subtitle_out(AVFormatContext *s,
1236 static uint8_t *subtitle_out = NULL;
1237 int subtitle_out_max_size = 1024 * 1024;
1238 int subtitle_out_size, nb, i;
1239 AVCodecContext *enc;
1242 if (pts == AV_NOPTS_VALUE) {
1243 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1249 enc = ost->st->codec;
1251 if (!subtitle_out) {
1252 subtitle_out = av_malloc(subtitle_out_max_size);
1255 /* Note: DVB subtitle need one packet to draw them and one other
1256 packet to clear them */
1257 /* XXX: signal it in the codec context ? */
1258 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1263 for (i = 0; i < nb; i++) {
1264 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
1265 if (!check_recording_time(ost))
1268 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1269 // start_display_time is required to be 0
1270 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1271 sub->end_display_time -= sub->start_display_time;
1272 sub->start_display_time = 0;
1273 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1274 subtitle_out_max_size, sub);
1275 if (subtitle_out_size < 0) {
1276 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1280 av_init_packet(&pkt);
1281 pkt.data = subtitle_out;
1282 pkt.size = subtitle_out_size;
1283 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1284 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1285 /* XXX: the pts correction is handled here. Maybe handling
1286 it in the codec would be better */
1288 pkt.pts += 90 * sub->start_display_time;
1290 pkt.pts += 90 * sub->end_display_time;
1292 write_frame(s, &pkt, ost);
1296 static void do_video_out(AVFormatContext *s,
1298 AVFrame *in_picture,
1299 int *frame_size, float quality)
1301 int nb_frames, i, ret, format_video_sync;
1302 AVCodecContext *enc;
1303 double sync_ipts, delta;
1305 enc = ost->st->codec;
1307 sync_ipts = get_sync_ipts(ost, in_picture->pts) / av_q2d(enc->time_base);
1308 delta = sync_ipts - ost->sync_opts;
1310 /* by default, we output a single frame */
1315 format_video_sync = video_sync_method;
1316 if (format_video_sync == VSYNC_AUTO)
1317 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
1318 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
1320 switch (format_video_sync) {
1322 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1325 else if (delta > 1.1)
1326 nb_frames = lrintf(delta);
1331 else if (delta > 0.6)
1332 ost->sync_opts = lrintf(sync_ipts);
1334 case VSYNC_PASSTHROUGH:
1335 ost->sync_opts = lrintf(sync_ipts);
1341 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1342 if (nb_frames == 0) {
1344 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1346 } else if (nb_frames > 1) {
1347 nb_frames_dup += nb_frames - 1;
1348 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
1351 if (!ost->frame_number)
1352 ost->first_pts = ost->sync_opts;
1354 /* duplicates frame if needed */
1355 for (i = 0; i < nb_frames; i++) {
1357 av_init_packet(&pkt);
1361 if (!check_recording_time(ost))
1364 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1365 enc->codec->id == CODEC_ID_RAWVIDEO) {
1366 /* raw pictures are written as AVPicture structure to
1367 avoid any copies. We support temporarily the older
1369 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1370 enc->coded_frame->top_field_first = in_picture->top_field_first;
1371 pkt.data = (uint8_t *)in_picture;
1372 pkt.size = sizeof(AVPicture);
1373 pkt.pts = av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1374 pkt.flags |= AV_PKT_FLAG_KEY;
1376 write_frame(s, &pkt, ost);
1379 AVFrame big_picture;
1381 big_picture = *in_picture;
1382 /* better than nothing: use input picture interlaced
1384 big_picture.interlaced_frame = in_picture->interlaced_frame;
1385 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1386 if (ost->top_field_first == -1)
1387 big_picture.top_field_first = in_picture->top_field_first;
1389 big_picture.top_field_first = !!ost->top_field_first;
1392 /* handles same_quant here. This is not correct because it may
1393 not be a global option */
1394 big_picture.quality = quality;
1395 if (!enc->me_threshold)
1396 big_picture.pict_type = 0;
1397 big_picture.pts = ost->sync_opts;
1398 if (ost->forced_kf_index < ost->forced_kf_count &&
1399 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1400 big_picture.pict_type = AV_PICTURE_TYPE_I;
1401 ost->forced_kf_index++;
1403 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
1405 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1410 if (pkt.pts != AV_NOPTS_VALUE)
1411 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1412 if (pkt.dts != AV_NOPTS_VALUE)
1413 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1415 write_frame(s, &pkt, ost);
1416 *frame_size = pkt.size;
1417 video_size += pkt.size;
1419 /* if two pass, output log */
1420 if (ost->logfile && enc->stats_out) {
1421 fprintf(ost->logfile, "%s", enc->stats_out);
1427 * For video, number of frames in == number of packets out.
1428 * But there may be reordering, so we can't throw away frames on encoder
1429 * flush, we need to limit them here, before they go into encoder.
1431 ost->frame_number++;
1435 static double psnr(double d)
1437 return -10.0 * log(d) / log(10.0);
1440 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1443 AVCodecContext *enc;
1445 double ti1, bitrate, avg_bitrate;
1447 /* this is executed just the first time do_video_stats is called */
1449 vstats_file = fopen(vstats_filename, "w");
1456 enc = ost->st->codec;
1457 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1458 frame_number = ost->frame_number;
1459 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1460 if (enc->flags&CODEC_FLAG_PSNR)
1461 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1463 fprintf(vstats_file,"f_size= %6d ", frame_size);
1464 /* compute pts value */
1465 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1469 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1470 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1471 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1472 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1473 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1477 static void print_report(int is_last_report, int64_t timer_start)
1481 AVFormatContext *oc;
1483 AVCodecContext *enc;
1484 int frame_number, vid, i;
1485 double bitrate, ti1, pts;
1486 static int64_t last_time = -1;
1487 static int qp_histogram[52];
1489 if (!print_stats && !is_last_report)
1492 if (!is_last_report) {
1494 /* display the report every 0.5 seconds */
1495 cur_time = av_gettime();
1496 if (last_time == -1) {
1497 last_time = cur_time;
1500 if ((cur_time - last_time) < 500000)
1502 last_time = cur_time;
1506 oc = output_files[0]->ctx;
1508 total_size = avio_size(oc->pb);
1509 if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
1510 total_size = avio_tell(oc->pb);
1515 for (i = 0; i < nb_output_streams; i++) {
1517 ost = output_streams[i];
1518 enc = ost->st->codec;
1519 if (!ost->stream_copy && enc->coded_frame)
1520 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1521 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1522 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1524 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1525 float t = (av_gettime() - timer_start) / 1000000.0;
1527 frame_number = ost->frame_number;
1528 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1529 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
1531 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1535 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1537 for (j = 0; j < 32; j++)
1538 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
1540 if (enc->flags&CODEC_FLAG_PSNR) {
1542 double error, error_sum = 0;
1543 double scale, scale_sum = 0;
1544 char type[3] = { 'Y','U','V' };
1545 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1546 for (j = 0; j < 3; j++) {
1547 if (is_last_report) {
1548 error = enc->error[j];
1549 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1551 error = enc->coded_frame->error[j];
1552 scale = enc->width * enc->height * 255.0 * 255.0;
1558 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
1560 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1564 /* compute min output value */
1565 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1566 if ((pts < ti1) && (pts > 0))
1572 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1574 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1575 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1576 (double)total_size / 1024, ti1, bitrate);
1578 if (nb_frames_dup || nb_frames_drop)
1579 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1580 nb_frames_dup, nb_frames_drop);
1582 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1586 if (is_last_report) {
1587 int64_t raw= audio_size + video_size + extra_size;
1588 av_log(NULL, AV_LOG_INFO, "\n");
1589 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1590 video_size / 1024.0,
1591 audio_size / 1024.0,
1592 extra_size / 1024.0,
1593 100.0 * (total_size - raw) / raw
1598 static void flush_encoders(void)
1602 for (i = 0; i < nb_output_streams; i++) {
1603 OutputStream *ost = output_streams[i];
1604 AVCodecContext *enc = ost->st->codec;
1605 AVFormatContext *os = output_files[ost->file_index]->ctx;
1606 int stop_encoding = 0;
1608 if (!ost->encoding_needed)
1611 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1613 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
1618 int fifo_bytes, got_packet;
1619 av_init_packet(&pkt);
1623 switch (ost->st->codec->codec_type) {
1624 case AVMEDIA_TYPE_AUDIO:
1625 fifo_bytes = av_fifo_size(ost->fifo);
1626 if (fifo_bytes > 0) {
1627 /* encode any samples remaining in fifo */
1628 int frame_bytes = fifo_bytes;
1630 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1632 /* pad last frame with silence if needed */
1633 if (!(enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME)) {
1634 frame_bytes = enc->frame_size * enc->channels *
1635 av_get_bytes_per_sample(enc->sample_fmt);
1636 if (allocated_audio_buf_size < frame_bytes)
1638 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1640 encode_audio_frame(os, ost, audio_buf, frame_bytes);
1642 /* flush encoder with NULL frames until it is done
1643 returning packets */
1644 if (encode_audio_frame(os, ost, NULL, 0) == 0) {
1650 case AVMEDIA_TYPE_VIDEO:
1651 ret = avcodec_encode_video2(enc, &pkt, NULL, &got_packet);
1653 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1657 if (ost->logfile && enc->stats_out) {
1658 fprintf(ost->logfile, "%s", enc->stats_out);
1664 if (pkt.pts != AV_NOPTS_VALUE)
1665 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1666 if (pkt.dts != AV_NOPTS_VALUE)
1667 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1668 write_frame(os, &pkt, ost);
1680 * Check whether a packet from ist should be written into ost at this time
1682 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1684 OutputFile *of = output_files[ost->file_index];
1685 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1687 if (ost->source_index != ist_index)
1690 if (of->start_time && ist->last_dts < of->start_time)
1696 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1698 OutputFile *of = output_files[ost->file_index];
1699 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1702 av_init_packet(&opkt);
1704 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1705 !ost->copy_initial_nonkeyframes)
1708 if (of->recording_time != INT64_MAX &&
1709 ist->last_dts >= of->recording_time + of->start_time) {
1710 ost->is_past_recording_time = 1;
1714 /* force the input stream PTS */
1715 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1716 audio_size += pkt->size;
1717 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1718 video_size += pkt->size;
1722 if (pkt->pts != AV_NOPTS_VALUE)
1723 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1725 opkt.pts = AV_NOPTS_VALUE;
1727 if (pkt->dts == AV_NOPTS_VALUE)
1728 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1730 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1731 opkt.dts -= ost_tb_start_time;
1733 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1734 opkt.flags = pkt->flags;
1736 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1737 if ( ost->st->codec->codec_id != CODEC_ID_H264
1738 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1739 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1740 && ost->st->codec->codec_id != CODEC_ID_VC1
1742 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1743 opkt.destruct = av_destruct_packet;
1745 opkt.data = pkt->data;
1746 opkt.size = pkt->size;
1749 write_frame(of->ctx, &opkt, ost);
1750 ost->st->codec->frame_number++;
1751 av_free_packet(&opkt);
1754 static void rate_emu_sleep(InputStream *ist)
1756 if (input_files[ist->file_index]->rate_emu) {
1757 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
1758 int64_t now = av_gettime() - ist->start;
1764 static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1766 AVFrame *decoded_frame;
1767 AVCodecContext *avctx = ist->st->codec;
1768 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1771 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1772 return AVERROR(ENOMEM);
1774 avcodec_get_frame_defaults(ist->decoded_frame);
1775 decoded_frame = ist->decoded_frame;
1777 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1783 /* no audio frame */
1787 /* if the decoder provides a pts, use it instead of the last packet pts.
1788 the decoder could be delaying output by a packet or more. */
1789 if (decoded_frame->pts != AV_NOPTS_VALUE)
1790 ist->next_dts = decoded_frame->pts;
1792 /* increment next_dts to use for the case where the input stream does not
1793 have timestamps or there are multiple frames in the packet */
1794 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1797 // preprocess audio (volume)
1798 if (audio_volume != 256) {
1799 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1800 void *samples = decoded_frame->data[0];
1801 switch (avctx->sample_fmt) {
1802 case AV_SAMPLE_FMT_U8:
1804 uint8_t *volp = samples;
1805 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1806 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1807 *volp++ = av_clip_uint8(v);
1811 case AV_SAMPLE_FMT_S16:
1813 int16_t *volp = samples;
1814 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1815 int v = ((*volp) * audio_volume + 128) >> 8;
1816 *volp++ = av_clip_int16(v);
1820 case AV_SAMPLE_FMT_S32:
1822 int32_t *volp = samples;
1823 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1824 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
1825 *volp++ = av_clipl_int32(v);
1829 case AV_SAMPLE_FMT_FLT:
1831 float *volp = samples;
1832 float scale = audio_volume / 256.f;
1833 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1838 case AV_SAMPLE_FMT_DBL:
1840 double *volp = samples;
1841 double scale = audio_volume / 256.;
1842 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1848 av_log(NULL, AV_LOG_FATAL,
1849 "Audio volume adjustment on sample format %s is not supported.\n",
1850 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
1855 rate_emu_sleep(ist);
1857 for (i = 0; i < nb_output_streams; i++) {
1858 OutputStream *ost = output_streams[i];
1860 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1862 do_audio_out(output_files[ost->file_index]->ctx, ost, ist, decoded_frame);
1868 static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
1870 AVFrame *decoded_frame, *filtered_frame = NULL;
1871 void *buffer_to_free = NULL;
1872 int i, ret = 0, resample_changed;
1874 int frame_available = 1;
1876 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1877 return AVERROR(ENOMEM);
1879 avcodec_get_frame_defaults(ist->decoded_frame);
1880 decoded_frame = ist->decoded_frame;
1881 pkt->pts = *pkt_pts;
1882 pkt->dts = ist->last_dts;
1883 *pkt_pts = AV_NOPTS_VALUE;
1885 ret = avcodec_decode_video2(ist->st->codec,
1886 decoded_frame, got_output, pkt);
1890 quality = same_quant ? decoded_frame->quality : 0;
1892 /* no picture yet */
1895 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1896 decoded_frame->pkt_dts);
1898 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
1900 rate_emu_sleep(ist);
1902 if (ist->st->sample_aspect_ratio.num)
1903 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1905 resample_changed = ist->resample_width != decoded_frame->width ||
1906 ist->resample_height != decoded_frame->height ||
1907 ist->resample_pix_fmt != decoded_frame->format;
1908 if (resample_changed) {
1909 av_log(NULL, AV_LOG_INFO,
1910 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1911 ist->file_index, ist->st->index,
1912 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1913 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1915 ist->resample_width = decoded_frame->width;
1916 ist->resample_height = decoded_frame->height;
1917 ist->resample_pix_fmt = decoded_frame->format;
1920 for (i = 0; i < nb_output_streams; i++) {
1921 OutputStream *ost = output_streams[i];
1924 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1927 if (resample_changed) {
1928 avfilter_graph_free(&ost->graph);
1929 if (configure_video_filters(ist, ost)) {
1930 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1935 if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
1936 FrameBuffer *buf = decoded_frame->opaque;
1937 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
1938 decoded_frame->data, decoded_frame->linesize,
1939 AV_PERM_READ | AV_PERM_PRESERVE,
1940 ist->st->codec->width, ist->st->codec->height,
1941 ist->st->codec->pix_fmt);
1943 avfilter_copy_frame_props(fb, decoded_frame);
1944 fb->buf->priv = buf;
1945 fb->buf->free = filter_release_buffer;
1948 av_buffersrc_buffer(ost->input_video_filter, fb);
1950 av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame,
1951 decoded_frame->pts, decoded_frame->sample_aspect_ratio);
1953 if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
1954 ret = AVERROR(ENOMEM);
1957 avcodec_get_frame_defaults(ist->filtered_frame);
1958 filtered_frame = ist->filtered_frame;
1960 frame_available = avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1961 while (frame_available) {
1962 AVFilterBufferRef *picref;
1963 AVRational ist_pts_tb;
1964 if ((ret = get_filtered_video_frame(ost->output_video_filter,
1965 filtered_frame, &picref,
1968 filtered_frame->pts = av_rescale_q(picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1969 if (!ost->frame_aspect_ratio)
1970 ost->st->codec->sample_aspect_ratio = picref->video->pixel_aspect;
1972 do_video_out(output_files[ost->file_index]->ctx, ost, filtered_frame, &frame_size,
1973 same_quant ? quality : ost->st->codec->global_quality);
1974 if (vstats_filename && frame_size)
1975 do_video_stats(output_files[ost->file_index]->ctx, ost, frame_size);
1976 frame_available = ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1977 avfilter_unref_buffer(picref);
1982 av_free(buffer_to_free);
1986 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1988 AVSubtitle subtitle;
1989 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1990 &subtitle, got_output, pkt);
1996 rate_emu_sleep(ist);
1998 for (i = 0; i < nb_output_streams; i++) {
1999 OutputStream *ost = output_streams[i];
2001 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2004 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
2007 avsubtitle_free(&subtitle);
2011 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2012 static int output_packet(InputStream *ist, const AVPacket *pkt)
2016 int64_t pkt_pts = AV_NOPTS_VALUE;
2019 if (ist->next_dts == AV_NOPTS_VALUE)
2020 ist->next_dts = ist->last_dts;
2024 av_init_packet(&avpkt);
2032 if (pkt->dts != AV_NOPTS_VALUE)
2033 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2034 if (pkt->pts != AV_NOPTS_VALUE)
2035 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2037 // while we have more to decode or while the decoder did output something on EOF
2038 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2042 ist->last_dts = ist->next_dts;
2044 if (avpkt.size && avpkt.size != pkt->size) {
2045 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2046 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2047 ist->showed_multi_packet_warning = 1;
2050 switch (ist->st->codec->codec_type) {
2051 case AVMEDIA_TYPE_AUDIO:
2052 ret = transcode_audio (ist, &avpkt, &got_output);
2054 case AVMEDIA_TYPE_VIDEO:
2055 ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
2057 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
2058 else if (ist->st->r_frame_rate.num)
2059 ist->next_dts += av_rescale_q(1, (AVRational){ist->st->r_frame_rate.den,
2060 ist->st->r_frame_rate.num},
2062 else if (ist->st->codec->time_base.num != 0) {
2063 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
2064 ist->st->codec->ticks_per_frame;
2065 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
2068 case AVMEDIA_TYPE_SUBTITLE:
2069 ret = transcode_subtitles(ist, &avpkt, &got_output);
2077 // touch data and size only if not EOF
2087 /* handle stream copy */
2088 if (!ist->decoding_needed) {
2089 rate_emu_sleep(ist);
2090 ist->last_dts = ist->next_dts;
2091 switch (ist->st->codec->codec_type) {
2092 case AVMEDIA_TYPE_AUDIO:
2093 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2094 ist->st->codec->sample_rate;
2096 case AVMEDIA_TYPE_VIDEO:
2097 if (ist->st->codec->time_base.num != 0) {
2098 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
2099 ist->next_dts += ((int64_t)AV_TIME_BASE *
2100 ist->st->codec->time_base.num * ticks) /
2101 ist->st->codec->time_base.den;
2106 for (i = 0; pkt && i < nb_output_streams; i++) {
2107 OutputStream *ost = output_streams[i];
2109 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2112 do_streamcopy(ist, ost, pkt);
2118 static void print_sdp(void)
2122 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
2126 for (i = 0; i < nb_output_files; i++)
2127 avc[i] = output_files[i]->ctx;
2129 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
2130 printf("SDP:\n%s\n", sdp);
2135 static void get_default_channel_layouts(OutputStream *ost, InputStream *ist)
2137 char layout_name[256];
2138 AVCodecContext *enc = ost->st->codec;
2139 AVCodecContext *dec = ist->st->codec;
2141 if (!dec->channel_layout) {
2142 if (enc->channel_layout && dec->channels == enc->channels) {
2143 dec->channel_layout = enc->channel_layout;
2145 dec->channel_layout = av_get_default_channel_layout(dec->channels);
2147 if (!dec->channel_layout) {
2148 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
2149 "layout for Input Stream #%d.%d\n", ist->file_index,
2154 av_get_channel_layout_string(layout_name, sizeof(layout_name),
2155 dec->channels, dec->channel_layout);
2156 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
2157 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
2159 if (!enc->channel_layout) {
2160 if (dec->channels == enc->channels) {
2161 enc->channel_layout = dec->channel_layout;
2164 enc->channel_layout = av_get_default_channel_layout(enc->channels);
2166 if (!enc->channel_layout) {
2167 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel layout "
2168 "for Output Stream #%d.%d\n", ost->file_index,
2172 av_get_channel_layout_string(layout_name, sizeof(layout_name),
2173 enc->channels, enc->channel_layout);
2174 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Output Stream "
2175 "#%d.%d : %s\n", ost->file_index, ost->st->index, layout_name);
2180 static int init_input_stream(int ist_index, char *error, int error_len)
2183 InputStream *ist = input_streams[ist_index];
2184 if (ist->decoding_needed) {
2185 AVCodec *codec = ist->dec;
2187 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
2188 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2189 return AVERROR(EINVAL);
2192 /* update requested sample format for the decoder based on the
2193 corresponding encoder sample format */
2194 for (i = 0; i < nb_output_streams; i++) {
2195 OutputStream *ost = output_streams[i];
2196 if (ost->source_index == ist_index) {
2197 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2202 if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
2203 ist->st->codec->get_buffer = codec_get_buffer;
2204 ist->st->codec->release_buffer = codec_release_buffer;
2205 ist->st->codec->opaque = ist;
2208 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2209 av_dict_set(&ist->opts, "threads", "auto", 0);
2210 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2211 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
2212 ist->file_index, ist->st->index);
2213 return AVERROR(EINVAL);
2215 assert_codec_experimental(ist->st->codec, 0);
2216 assert_avoptions(ist->opts);
2218 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2219 for (i = 0; i < nb_output_streams; i++) {
2220 OutputStream *ost = output_streams[i];
2221 if (ost->source_index == ist_index) {
2222 if (!ist->st->codec->channel_layout || !ost->st->codec->channel_layout)
2223 get_default_channel_layouts(ost, ist);
2230 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;
2231 ist->next_dts = AV_NOPTS_VALUE;
2232 init_pts_correction(&ist->pts_ctx);
2238 static int transcode_init(void)
2240 int ret = 0, i, j, k;
2241 AVFormatContext *oc;
2242 AVCodecContext *codec, *icodec;
2248 /* init framerate emulation */
2249 for (i = 0; i < nb_input_files; i++) {
2250 InputFile *ifile = input_files[i];
2251 if (ifile->rate_emu)
2252 for (j = 0; j < ifile->nb_streams; j++)
2253 input_streams[j + ifile->ist_index]->start = av_gettime();
2256 /* output stream init */
2257 for (i = 0; i < nb_output_files; i++) {
2258 oc = output_files[i]->ctx;
2259 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2260 av_dump_format(oc, i, oc->filename, 1);
2261 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2262 return AVERROR(EINVAL);
2266 /* for each output stream, we compute the right encoding parameters */
2267 for (i = 0; i < nb_output_streams; i++) {
2268 ost = output_streams[i];
2269 oc = output_files[ost->file_index]->ctx;
2270 ist = input_streams[ost->source_index];
2272 if (ost->attachment_filename)
2275 codec = ost->st->codec;
2276 icodec = ist->st->codec;
2278 ost->st->disposition = ist->st->disposition;
2279 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2280 codec->chroma_sample_location = icodec->chroma_sample_location;
2282 if (ost->stream_copy) {
2283 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2285 if (extra_size > INT_MAX) {
2286 return AVERROR(EINVAL);
2289 /* if stream_copy is selected, no need to decode or encode */
2290 codec->codec_id = icodec->codec_id;
2291 codec->codec_type = icodec->codec_type;
2293 if (!codec->codec_tag) {
2294 if (!oc->oformat->codec_tag ||
2295 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2296 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2297 codec->codec_tag = icodec->codec_tag;
2300 codec->bit_rate = icodec->bit_rate;
2301 codec->rc_max_rate = icodec->rc_max_rate;
2302 codec->rc_buffer_size = icodec->rc_buffer_size;
2303 codec->field_order = icodec->field_order;
2304 codec->extradata = av_mallocz(extra_size);
2305 if (!codec->extradata) {
2306 return AVERROR(ENOMEM);
2308 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2309 codec->extradata_size = icodec->extradata_size;
2311 codec->time_base = icodec->time_base;
2312 codec->time_base.num *= icodec->ticks_per_frame;
2313 av_reduce(&codec->time_base.num, &codec->time_base.den,
2314 codec->time_base.num, codec->time_base.den, INT_MAX);
2316 codec->time_base = ist->st->time_base;
2318 switch (codec->codec_type) {
2319 case AVMEDIA_TYPE_AUDIO:
2320 if (audio_volume != 256) {
2321 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2324 codec->channel_layout = icodec->channel_layout;
2325 codec->sample_rate = icodec->sample_rate;
2326 codec->channels = icodec->channels;
2327 codec->frame_size = icodec->frame_size;
2328 codec->audio_service_type = icodec->audio_service_type;
2329 codec->block_align = icodec->block_align;
2331 case AVMEDIA_TYPE_VIDEO:
2332 codec->pix_fmt = icodec->pix_fmt;
2333 codec->width = icodec->width;
2334 codec->height = icodec->height;
2335 codec->has_b_frames = icodec->has_b_frames;
2336 if (!codec->sample_aspect_ratio.num) {
2337 codec->sample_aspect_ratio =
2338 ost->st->sample_aspect_ratio =
2339 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2340 ist->st->codec->sample_aspect_ratio.num ?
2341 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2344 case AVMEDIA_TYPE_SUBTITLE:
2345 codec->width = icodec->width;
2346 codec->height = icodec->height;
2348 case AVMEDIA_TYPE_DATA:
2349 case AVMEDIA_TYPE_ATTACHMENT:
2356 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2358 ist->decoding_needed = 1;
2359 ost->encoding_needed = 1;
2361 switch (codec->codec_type) {
2362 case AVMEDIA_TYPE_AUDIO:
2363 ost->fifo = av_fifo_alloc(1024);
2365 return AVERROR(ENOMEM);
2367 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2369 if (!codec->sample_rate)
2370 codec->sample_rate = icodec->sample_rate;
2371 choose_sample_rate(ost->st, ost->enc);
2372 codec->time_base = (AVRational){ 1, codec->sample_rate };
2374 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2375 codec->sample_fmt = icodec->sample_fmt;
2376 choose_sample_fmt(ost->st, ost->enc);
2378 if (!codec->channels)
2379 codec->channels = icodec->channels;
2380 codec->channel_layout = icodec->channel_layout;
2381 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2382 codec->channel_layout = 0;
2384 ost->audio_resample = codec-> sample_rate != icodec->sample_rate || audio_sync_method > 1;
2385 icodec->request_channels = codec-> channels;
2386 ost->resample_sample_fmt = icodec->sample_fmt;
2387 ost->resample_sample_rate = icodec->sample_rate;
2388 ost->resample_channels = icodec->channels;
2390 case AVMEDIA_TYPE_VIDEO:
2392 * We want CFR output if and only if one of those is true:
2393 * 1) user specified output framerate with -r
2394 * 2) user specified -vsync cfr
2395 * 3) output format is CFR and the user didn't force vsync to
2396 * something else than CFR
2398 * in such a case, set ost->frame_rate
2400 if (!ost->frame_rate.num &&
2401 (video_sync_method == VSYNC_CFR ||
2402 (video_sync_method == VSYNC_AUTO &&
2403 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
2404 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
2405 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2406 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2407 ost->frame_rate = ost->enc->supported_framerates[idx];
2410 if (ost->frame_rate.num) {
2411 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2412 video_sync_method = VSYNC_CFR;
2414 codec->time_base = ist->st->time_base;
2416 if (configure_video_filters(ist, ost)) {
2417 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2421 if (codec->width != icodec->width ||
2422 codec->height != icodec->height ||
2423 codec->pix_fmt != icodec->pix_fmt) {
2424 codec->bits_per_raw_sample = 0;
2428 case AVMEDIA_TYPE_SUBTITLE:
2429 codec->time_base = (AVRational){1, 1000};
2436 if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2437 char logfilename[1024];
2440 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2441 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2443 if (!strcmp(ost->enc->name, "libx264")) {
2444 av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
2446 if (codec->flags & CODEC_FLAG_PASS1) {
2447 f = fopen(logfilename, "wb");
2449 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2450 logfilename, strerror(errno));
2456 size_t logbuffer_size;
2457 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2458 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2462 codec->stats_in = logbuffer;
2469 /* open each encoder */
2470 for (i = 0; i < nb_output_streams; i++) {
2471 ost = output_streams[i];
2472 if (ost->encoding_needed) {
2473 AVCodec *codec = ost->enc;
2474 AVCodecContext *dec = input_streams[ost->source_index]->st->codec;
2476 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d:%d",
2477 ost->st->codec->codec_id, ost->file_index, ost->index);
2478 ret = AVERROR(EINVAL);
2481 if (dec->subtitle_header) {
2482 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2483 if (!ost->st->codec->subtitle_header) {
2484 ret = AVERROR(ENOMEM);
2487 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2488 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2490 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2491 av_dict_set(&ost->opts, "threads", "auto", 0);
2492 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2493 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2494 ost->file_index, ost->index);
2495 ret = AVERROR(EINVAL);
2498 assert_codec_experimental(ost->st->codec, 1);
2499 assert_avoptions(ost->opts);
2500 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2501 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2502 "It takes bits/s as argument, not kbits/s\n");
2503 extra_size += ost->st->codec->extradata_size;
2505 if (ost->st->codec->me_threshold)
2506 input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
2510 /* init input streams */
2511 for (i = 0; i < nb_input_streams; i++)
2512 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2515 /* discard unused programs */
2516 for (i = 0; i < nb_input_files; i++) {
2517 InputFile *ifile = input_files[i];
2518 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2519 AVProgram *p = ifile->ctx->programs[j];
2520 int discard = AVDISCARD_ALL;
2522 for (k = 0; k < p->nb_stream_indexes; k++)
2523 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2524 discard = AVDISCARD_DEFAULT;
2527 p->discard = discard;
2531 /* open files and write file headers */
2532 for (i = 0; i < nb_output_files; i++) {
2533 oc = output_files[i]->ctx;
2534 oc->interrupt_callback = int_cb;
2535 if (avformat_write_header(oc, &output_files[i]->opts) < 0) {
2536 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2537 ret = AVERROR(EINVAL);
2540 assert_avoptions(output_files[i]->opts);
2541 if (strcmp(oc->oformat->name, "rtp")) {
2547 /* dump the file output parameters - cannot be done before in case
2549 for (i = 0; i < nb_output_files; i++) {
2550 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
2553 /* dump the stream mapping */
2554 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2555 for (i = 0; i < nb_output_streams; i++) {
2556 ost = output_streams[i];
2558 if (ost->attachment_filename) {
2559 /* an attached file */
2560 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2561 ost->attachment_filename, ost->file_index, ost->index);
2564 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2565 input_streams[ost->source_index]->file_index,
2566 input_streams[ost->source_index]->st->index,
2569 if (ost->sync_ist != input_streams[ost->source_index])
2570 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2571 ost->sync_ist->file_index,
2572 ost->sync_ist->st->index);
2573 if (ost->stream_copy)
2574 av_log(NULL, AV_LOG_INFO, " (copy)");
2576 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2577 input_streams[ost->source_index]->dec->name : "?",
2578 ost->enc ? ost->enc->name : "?");
2579 av_log(NULL, AV_LOG_INFO, "\n");
2583 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2595 * The following code is the main loop of the file converter
2597 static int transcode(void)
2600 AVFormatContext *is, *os;
2604 int no_packet_count = 0;
2605 int64_t timer_start;
2607 if (!(no_packet = av_mallocz(nb_input_files)))
2610 ret = transcode_init();
2614 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2617 timer_start = av_gettime();
2619 for (; received_sigterm == 0;) {
2620 int file_index, ist_index;
2625 ipts_min = INT64_MAX;
2628 /* select the stream that we must read now by looking at the
2629 smallest output pts */
2631 for (i = 0; i < nb_output_streams; i++) {
2635 ost = output_streams[i];
2636 of = output_files[ost->file_index];
2637 os = output_files[ost->file_index]->ctx;
2638 ist = input_streams[ost->source_index];
2639 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2640 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2642 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2643 ipts = ist->last_dts;
2644 if (!input_files[ist->file_index]->eof_reached) {
2645 if (ipts < ipts_min) {
2648 file_index = ist->file_index;
2650 if (opts < opts_min) {
2652 if (!input_sync) file_index = ist->file_index;
2655 if (ost->frame_number >= ost->max_frames) {
2657 for (j = 0; j < of->ctx->nb_streams; j++)
2658 output_streams[of->ost_index + j]->is_past_recording_time = 1;
2662 /* if none, if is finished */
2663 if (file_index < 0) {
2664 if (no_packet_count) {
2665 no_packet_count = 0;
2666 memset(no_packet, 0, nb_input_files);
2673 /* read a frame from it and output it in the fifo */
2674 is = input_files[file_index]->ctx;
2675 ret = av_read_frame(is, &pkt);
2676 if (ret == AVERROR(EAGAIN)) {
2677 no_packet[file_index] = 1;
2682 input_files[file_index]->eof_reached = 1;
2689 no_packet_count = 0;
2690 memset(no_packet, 0, nb_input_files);
2693 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2694 is->streams[pkt.stream_index]);
2696 /* the following test is needed in case new streams appear
2697 dynamically in stream : we ignore them */
2698 if (pkt.stream_index >= input_files[file_index]->nb_streams)
2699 goto discard_packet;
2700 ist_index = input_files[file_index]->ist_index + pkt.stream_index;
2701 ist = input_streams[ist_index];
2703 goto discard_packet;
2705 if (pkt.dts != AV_NOPTS_VALUE)
2706 pkt.dts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2707 if (pkt.pts != AV_NOPTS_VALUE)
2708 pkt.pts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2710 if (pkt.pts != AV_NOPTS_VALUE)
2711 pkt.pts *= ist->ts_scale;
2712 if (pkt.dts != AV_NOPTS_VALUE)
2713 pkt.dts *= ist->ts_scale;
2715 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
2717 // pkt.dts, input_files[ist->file_index].ts_offset,
2718 // ist->st->codec->codec_type);
2719 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE
2720 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2721 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2722 int64_t delta = pkt_dts - ist->next_dts;
2723 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2724 input_files[ist->file_index]->ts_offset -= delta;
2725 av_log(NULL, AV_LOG_DEBUG,
2726 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2727 delta, input_files[ist->file_index]->ts_offset);
2728 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2729 if (pkt.pts != AV_NOPTS_VALUE)
2730 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2734 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2735 if (output_packet(ist, &pkt) < 0) {
2737 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2738 ist->file_index, ist->st->index);
2741 av_free_packet(&pkt);
2746 av_free_packet(&pkt);
2748 /* dump report by using the output first video and audio streams */
2749 print_report(0, timer_start);
2752 /* at the end of stream, we must flush the decoder buffers */
2753 for (i = 0; i < nb_input_streams; i++) {
2754 ist = input_streams[i];
2755 if (ist->decoding_needed) {
2756 output_packet(ist, NULL);
2763 /* write the trailer if needed and close file */
2764 for (i = 0; i < nb_output_files; i++) {
2765 os = output_files[i]->ctx;
2766 av_write_trailer(os);
2769 /* dump report by using the first video and audio streams */
2770 print_report(1, timer_start);
2772 /* close each encoder */
2773 for (i = 0; i < nb_output_streams; i++) {
2774 ost = output_streams[i];
2775 if (ost->encoding_needed) {
2776 av_freep(&ost->st->codec->stats_in);
2777 avcodec_close(ost->st->codec);
2779 avfilter_graph_free(&ost->graph);
2782 /* close each decoder */
2783 for (i = 0; i < nb_input_streams; i++) {
2784 ist = input_streams[i];
2785 if (ist->decoding_needed) {
2786 avcodec_close(ist->st->codec);
2794 av_freep(&no_packet);
2796 if (output_streams) {
2797 for (i = 0; i < nb_output_streams; i++) {
2798 ost = output_streams[i];
2800 if (ost->stream_copy)
2801 av_freep(&ost->st->codec->extradata);
2803 fclose(ost->logfile);
2804 ost->logfile = NULL;
2806 av_fifo_free(ost->fifo); /* works even if fifo is not
2807 initialized but set to zero */
2808 av_freep(&ost->st->codec->subtitle_header);
2809 av_free(ost->forced_kf_pts);
2811 audio_resample_close(ost->resample);
2812 if (ost->reformat_ctx)
2813 av_audio_convert_free(ost->reformat_ctx);
2814 av_dict_free(&ost->opts);
2821 static double parse_frame_aspect_ratio(const char *arg)
2828 p = strchr(arg, ':');
2830 x = strtol(arg, &end, 10);
2832 y = strtol(end + 1, &end, 10);
2834 ar = (double)x / (double)y;
2836 ar = strtod(arg, NULL);
2839 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
2845 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2847 return parse_option(o, "codec:a", arg, options);
2850 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2852 return parse_option(o, "codec:v", arg, options);
2855 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2857 return parse_option(o, "codec:s", arg, options);
2860 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2862 return parse_option(o, "codec:d", arg, options);
2865 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2867 StreamMap *m = NULL;
2868 int i, negative = 0, file_idx;
2869 int sync_file_idx = -1, sync_stream_idx;
2877 map = av_strdup(arg);
2879 /* parse sync stream first, just pick first matching stream */
2880 if (sync = strchr(map, ',')) {
2882 sync_file_idx = strtol(sync + 1, &sync, 0);
2883 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2884 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
2889 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
2890 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
2891 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
2892 sync_stream_idx = i;
2895 if (i == input_files[sync_file_idx]->nb_streams) {
2896 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
2897 "match any streams.\n", arg);
2903 file_idx = strtol(map, &p, 0);
2904 if (file_idx >= nb_input_files || file_idx < 0) {
2905 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
2909 /* disable some already defined maps */
2910 for (i = 0; i < o->nb_stream_maps; i++) {
2911 m = &o->stream_maps[i];
2912 if (file_idx == m->file_index &&
2913 check_stream_specifier(input_files[m->file_index]->ctx,
2914 input_files[m->file_index]->ctx->streams[m->stream_index],
2915 *p == ':' ? p + 1 : p) > 0)
2919 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
2920 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
2921 *p == ':' ? p + 1 : p) <= 0)
2923 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2924 &o->nb_stream_maps, o->nb_stream_maps + 1);
2925 m = &o->stream_maps[o->nb_stream_maps - 1];
2927 m->file_index = file_idx;
2928 m->stream_index = i;
2930 if (sync_file_idx >= 0) {
2931 m->sync_file_index = sync_file_idx;
2932 m->sync_stream_index = sync_stream_idx;
2934 m->sync_file_index = file_idx;
2935 m->sync_stream_index = i;
2940 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
2948 static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
2950 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
2951 &o->nb_attachments, o->nb_attachments + 1);
2952 o->attachments[o->nb_attachments - 1] = arg;
2957 * Parse a metadata specifier in arg.
2958 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
2959 * @param index for type c/p, chapter/program index is written here
2960 * @param stream_spec for type s, the stream specifier is written here
2962 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
2970 if (*(++arg) && *arg != ':') {
2971 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
2974 *stream_spec = *arg == ':' ? arg + 1 : "";
2978 if (*(++arg) == ':')
2979 *index = strtol(++arg, NULL, 0);
2982 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
2989 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
2991 AVDictionary **meta_in = NULL;
2992 AVDictionary **meta_out;
2994 char type_in, type_out;
2995 const char *istream_spec = NULL, *ostream_spec = NULL;
2996 int idx_in = 0, idx_out = 0;
2998 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
2999 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
3001 if (type_in == 'g' || type_out == 'g')
3002 o->metadata_global_manual = 1;
3003 if (type_in == 's' || type_out == 's')
3004 o->metadata_streams_manual = 1;
3005 if (type_in == 'c' || type_out == 'c')
3006 o->metadata_chapters_manual = 1;
3008 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3009 if ((index) < 0 || (index) >= (nb_elems)) {\
3010 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
3015 #define SET_DICT(type, meta, context, index)\
3018 meta = &context->metadata;\
3021 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
3022 meta = &context->chapters[index]->metadata;\
3025 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
3026 meta = &context->programs[index]->metadata;\
3030 SET_DICT(type_in, meta_in, ic, idx_in);
3031 SET_DICT(type_out, meta_out, oc, idx_out);
3033 /* for input streams choose first matching stream */
3034 if (type_in == 's') {
3035 for (i = 0; i < ic->nb_streams; i++) {
3036 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3037 meta_in = &ic->streams[i]->metadata;
3043 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3048 if (type_out == 's') {
3049 for (i = 0; i < oc->nb_streams; i++) {
3050 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3051 meta_out = &oc->streams[i]->metadata;
3052 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3057 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3062 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
3064 const char *codec_string = encoder ? "encoder" : "decoder";
3068 avcodec_find_encoder_by_name(name) :
3069 avcodec_find_decoder_by_name(name);
3071 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
3074 if (codec->type != type) {
3075 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
3081 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
3083 char *codec_name = NULL;
3085 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
3087 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3088 st->codec->codec_id = codec->id;
3091 return avcodec_find_decoder(st->codec->codec_id);
3095 * Add all the streams from the given input file to the global
3096 * list of input streams.
3098 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
3102 for (i = 0; i < ic->nb_streams; i++) {
3103 AVStream *st = ic->streams[i];
3104 AVCodecContext *dec = st->codec;
3105 InputStream *ist = av_mallocz(sizeof(*ist));
3110 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3111 input_streams[nb_input_streams - 1] = ist;
3114 ist->file_index = nb_input_files;
3116 st->discard = AVDISCARD_ALL;
3117 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3119 ist->ts_scale = 1.0;
3120 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
3122 ist->dec = choose_decoder(o, ic, st);
3124 switch (dec->codec_type) {
3125 case AVMEDIA_TYPE_VIDEO:
3127 dec->flags |= CODEC_FLAG_EMU_EDGE;
3128 dec->height >>= dec->lowres;
3129 dec->width >>= dec->lowres;
3132 ist->resample_height = dec->height;
3133 ist->resample_width = dec->width;
3134 ist->resample_pix_fmt = dec->pix_fmt;
3137 case AVMEDIA_TYPE_AUDIO:
3138 case AVMEDIA_TYPE_DATA:
3139 case AVMEDIA_TYPE_SUBTITLE:
3140 case AVMEDIA_TYPE_ATTACHMENT:
3141 case AVMEDIA_TYPE_UNKNOWN:
3149 static void assert_file_overwrite(const char *filename)
3151 if (!file_overwrite &&
3152 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3153 av_strstart(filename, "file:", NULL))) {
3154 if (avio_check(filename, 0) == 0) {
3156 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3158 if (!read_yesno()) {
3159 fprintf(stderr, "Not overwriting - exiting\n");
3164 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3171 static void dump_attachment(AVStream *st, const char *filename)
3174 AVIOContext *out = NULL;
3175 AVDictionaryEntry *e;
3177 if (!st->codec->extradata_size) {
3178 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3179 nb_input_files - 1, st->index);
3182 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3183 filename = e->value;
3185 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3186 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3190 assert_file_overwrite(filename);
3192 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
3193 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3198 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3203 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
3205 AVFormatContext *ic;
3206 AVInputFormat *file_iformat = NULL;
3210 AVDictionary **opts;
3211 int orig_nb_streams; // number of streams before avformat_find_stream_info
3214 if (!(file_iformat = av_find_input_format(o->format))) {
3215 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
3220 if (!strcmp(filename, "-"))
3223 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3224 !strcmp(filename, "/dev/stdin");
3226 /* get default parameters from command line */
3227 ic = avformat_alloc_context();
3229 print_error(filename, AVERROR(ENOMEM));
3232 if (o->nb_audio_sample_rate) {
3233 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
3234 av_dict_set(&format_opts, "sample_rate", buf, 0);
3236 if (o->nb_audio_channels) {
3237 snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
3238 av_dict_set(&format_opts, "channels", buf, 0);
3240 if (o->nb_frame_rates) {
3241 av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
3243 if (o->nb_frame_sizes) {
3244 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
3246 if (o->nb_frame_pix_fmts)
3247 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
3249 ic->flags |= AVFMT_FLAG_NONBLOCK;
3250 ic->interrupt_callback = int_cb;
3252 /* open the input file with generic libav function */
3253 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3255 print_error(filename, err);
3258 assert_avoptions(format_opts);
3260 /* apply forced codec ids */
3261 for (i = 0; i < ic->nb_streams; i++)
3262 choose_decoder(o, ic, ic->streams[i]);
3264 /* Set AVCodecContext options for avformat_find_stream_info */
3265 opts = setup_find_stream_info_opts(ic, codec_opts);
3266 orig_nb_streams = ic->nb_streams;
3268 /* If not enough info to get the stream parameters, we decode the
3269 first frames to get it. (used in mpeg case for example) */
3270 ret = avformat_find_stream_info(ic, opts);
3272 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
3273 avformat_close_input(&ic);
3277 timestamp = o->start_time;
3278 /* add the stream start time */
3279 if (ic->start_time != AV_NOPTS_VALUE)
3280 timestamp += ic->start_time;
3282 /* if seeking requested, we execute it */
3283 if (o->start_time != 0) {
3284 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3286 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
3287 filename, (double)timestamp / AV_TIME_BASE);
3291 /* update the current parameters so that they match the one of the input stream */
3292 add_input_streams(o, ic);
3294 /* dump the file content */
3295 av_dump_format(ic, nb_input_files, filename, 0);
3297 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3298 if (!(input_files[nb_input_files - 1] = av_mallocz(sizeof(*input_files[0]))))
3301 input_files[nb_input_files - 1]->ctx = ic;
3302 input_files[nb_input_files - 1]->ist_index = nb_input_streams - ic->nb_streams;
3303 input_files[nb_input_files - 1]->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3304 input_files[nb_input_files - 1]->nb_streams = ic->nb_streams;
3305 input_files[nb_input_files - 1]->rate_emu = o->rate_emu;
3307 for (i = 0; i < o->nb_dump_attachment; i++) {
3310 for (j = 0; j < ic->nb_streams; j++) {
3311 AVStream *st = ic->streams[j];
3313 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3314 dump_attachment(st, o->dump_attachment[i].u.str);
3318 for (i = 0; i < orig_nb_streams; i++)
3319 av_dict_free(&opts[i]);
3326 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3327 AVCodecContext *avctx)
3333 for (p = kf; *p; p++)
3336 ost->forced_kf_count = n;
3337 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3338 if (!ost->forced_kf_pts) {
3339 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3342 for (i = 0; i < n; i++) {
3343 p = i ? strchr(p, ',') + 1 : kf;
3344 t = parse_time_or_die("force_key_frames", p, 1);
3345 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3349 static uint8_t *get_line(AVIOContext *s)
3355 if (avio_open_dyn_buf(&line) < 0) {
3356 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
3360 while ((c = avio_r8(s)) && c != '\n')
3363 avio_close_dyn_buf(line, &buf);
3368 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
3371 char filename[1000];
3372 const char *base[3] = { getenv("AVCONV_DATADIR"),
3377 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
3381 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
3382 i != 1 ? "" : "/.avconv", codec_name, preset_name);
3383 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3386 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
3387 i != 1 ? "" : "/.avconv", preset_name);
3388 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3394 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
3396 char *codec_name = NULL;
3398 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
3400 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
3401 NULL, ost->st->codec->codec_type);
3402 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
3403 } else if (!strcmp(codec_name, "copy"))
3404 ost->stream_copy = 1;
3406 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
3407 ost->st->codec->codec_id = ost->enc->id;
3411 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
3414 AVStream *st = avformat_new_stream(oc, NULL);
3415 int idx = oc->nb_streams - 1, ret = 0;
3416 char *bsf = NULL, *next, *codec_tag = NULL;
3417 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
3419 char *buf = NULL, *arg = NULL, *preset = NULL;
3420 AVIOContext *s = NULL;
3423 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
3427 if (oc->nb_streams - 1 < o->nb_streamid_map)
3428 st->id = o->streamid_map[oc->nb_streams - 1];
3430 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3431 nb_output_streams + 1);
3432 if (!(ost = av_mallocz(sizeof(*ost))))
3434 output_streams[nb_output_streams - 1] = ost;
3436 ost->file_index = nb_output_files;
3439 st->codec->codec_type = type;
3440 choose_encoder(o, oc, ost);
3442 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3445 avcodec_get_context_defaults3(st->codec, ost->enc);
3446 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3448 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
3449 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
3452 if (!buf[0] || buf[0] == '#') {
3456 if (!(arg = strchr(buf, '='))) {
3457 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
3461 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
3463 } while (!s->eof_reached);
3467 av_log(NULL, AV_LOG_FATAL,
3468 "Preset %s specified for stream %d:%d, but could not be opened.\n",
3469 preset, ost->file_index, ost->index);
3473 ost->max_frames = INT64_MAX;
3474 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
3476 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
3478 if (next = strchr(bsf, ','))
3480 if (!(bsfc = av_bitstream_filter_init(bsf))) {
3481 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
3485 bsfc_prev->next = bsfc;
3487 ost->bitstream_filters = bsfc;
3493 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
3495 uint32_t tag = strtol(codec_tag, &next, 0);
3497 tag = AV_RL32(codec_tag);
3498 st->codec->codec_tag = tag;
3501 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
3502 if (qscale >= 0 || same_quant) {
3503 st->codec->flags |= CODEC_FLAG_QSCALE;
3504 st->codec->global_quality = FF_QP2LAMBDA * qscale;
3507 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
3508 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
3510 av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
3512 ost->pix_fmts[0] = ost->pix_fmts[1] = PIX_FMT_NONE;
3517 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3520 const char *p = str;
3527 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3534 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3538 AVCodecContext *video_enc;
3540 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3542 video_enc = st->codec;
3544 if (!ost->stream_copy) {
3545 const char *p = NULL;
3546 char *forced_key_frames = NULL, *frame_rate = NULL, *frame_size = NULL;
3547 char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
3548 char *intra_matrix = NULL, *inter_matrix = NULL, *filters = NULL;
3551 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
3552 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
3553 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
3557 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
3558 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
3559 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
3563 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
3564 if (frame_aspect_ratio)
3565 ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
3567 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
3568 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
3569 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
3572 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3574 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
3576 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
3577 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
3580 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
3582 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
3584 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
3585 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
3588 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
3591 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
3592 for (i = 0; p; i++) {
3594 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
3596 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
3599 video_enc->rc_override =
3600 av_realloc(video_enc->rc_override,
3601 sizeof(RcOverride) * (i + 1));
3602 video_enc->rc_override[i].start_frame = start;
3603 video_enc->rc_override[i].end_frame = end;
3605 video_enc->rc_override[i].qscale = q;
3606 video_enc->rc_override[i].quality_factor = 1.0;
3609 video_enc->rc_override[i].qscale = 0;
3610 video_enc->rc_override[i].quality_factor = -q/100.0;
3615 video_enc->rc_override_count = i;
3616 if (!video_enc->rc_initial_buffer_occupancy)
3617 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size * 3 / 4;
3618 video_enc->intra_dc_precision = intra_dc_precision - 8;
3623 video_enc->flags |= CODEC_FLAG_PASS1;
3625 video_enc->flags |= CODEC_FLAG_PASS2;
3629 MATCH_PER_STREAM_OPT(forced_key_frames, str, forced_key_frames, oc, st);
3630 if (forced_key_frames)
3631 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3633 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
3635 ost->top_field_first = -1;
3636 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
3638 MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
3640 ost->avfilter = av_strdup(filters);
3642 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
3648 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
3652 AVCodecContext *audio_enc;
3654 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
3657 audio_enc = st->codec;
3658 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3660 if (!ost->stream_copy) {
3661 char *sample_fmt = NULL;
3663 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
3665 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
3667 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
3668 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
3672 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
3678 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
3682 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
3683 if (!ost->stream_copy) {
3684 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
3691 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
3693 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
3694 ost->stream_copy = 1;
3698 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
3702 AVCodecContext *subtitle_enc;
3704 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
3706 subtitle_enc = st->codec;
3708 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3713 /* arg format is "output-stream-index:streamid-value". */