2 * Copyright (c) 2000-2003 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * multimedia converter based on the FFmpeg libraries
35 #include "libavformat/avformat.h"
36 #include "libavdevice/avdevice.h"
37 #include "libswscale/swscale.h"
38 #include "libavutil/opt.h"
39 #include "libavcodec/audioconvert.h"
40 #include "libavutil/audioconvert.h"
41 #include "libavutil/parseutils.h"
42 #include "libavutil/samplefmt.h"
43 #include "libavutil/colorspace.h"
44 #include "libavutil/fifo.h"
45 #include "libavutil/intreadwrite.h"
46 #include "libavutil/dict.h"
47 #include "libavutil/mathematics.h"
48 #include "libavutil/pixdesc.h"
49 #include "libavutil/avstring.h"
50 #include "libavutil/libm.h"
51 #include "libavutil/imgutils.h"
52 #include "libavformat/os_support.h"
53 #include "libswresample/swresample.h"
55 #include "libavformat/ffm.h" // not public API
58 # include "libavfilter/avcodec.h"
59 # include "libavfilter/avfilter.h"
60 # include "libavfilter/avfiltergraph.h"
61 # include "libavfilter/buffersink.h"
62 # include "libavfilter/buffersrc.h"
63 # include "libavfilter/vsrc_buffer.h"
66 #if HAVE_SYS_RESOURCE_H
67 #include <sys/types.h>
69 #include <sys/resource.h>
70 #elif HAVE_GETPROCESSTIMES
73 #if HAVE_GETPROCESSMEMORYINFO
79 #include <sys/select.h>
84 #include <sys/ioctl.h>
94 #include "libavutil/avassert.h"
97 #define VSYNC_PASSTHROUGH 0
100 #define VSYNC_DROP 0xff
102 const char program_name[] = "ffmpeg";
103 const int program_birth_year = 2000;
105 /* select an input stream for an output stream */
106 typedef struct StreamMap {
107 int disabled; /** 1 is this mapping is disabled by a negative map */
111 int sync_stream_index;
115 int file_idx, stream_idx, channel_idx; // input
116 int ofile_idx, ostream_idx; // output
120 * select an input file for an output file
122 typedef struct MetadataMap {
123 int file; ///< file index
124 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
125 int index; ///< stream/chapter/program number
128 static const OptionDef options[];
130 #define MAX_STREAMS 1024 /* arbitrary sanity check value */
132 static int frame_bits_per_raw_sample = 0;
133 static int video_discard = 0;
134 static int same_quant = 0;
135 static int do_deinterlace = 0;
136 static int intra_dc_precision = 8;
137 static int qp_hist = 0;
138 static int intra_only = 0;
139 static const char *video_codec_name = NULL;
140 static const char *audio_codec_name = NULL;
141 static const char *subtitle_codec_name = NULL;
143 static int file_overwrite = 0;
144 static int no_file_overwrite = 0;
145 static int do_benchmark = 0;
146 static int do_hex_dump = 0;
147 static int do_pkt_dump = 0;
148 static int do_psnr = 0;
149 static int do_pass = 0;
150 static const char *pass_logfilename_prefix;
151 static int video_sync_method = VSYNC_AUTO;
152 static int audio_sync_method = 0;
153 static float audio_drift_threshold = 0.1;
154 static int copy_ts = 0;
155 static int copy_tb = -1;
156 static int opt_shortest = 0;
157 static char *vstats_filename;
158 static FILE *vstats_file;
160 static int audio_volume = 256;
162 static int exit_on_error = 0;
163 static int using_stdin = 0;
164 static int run_as_daemon = 0;
165 static volatile int received_nb_signals = 0;
166 static int64_t video_size = 0;
167 static int64_t audio_size = 0;
168 static int64_t extra_size = 0;
169 static int nb_frames_dup = 0;
170 static int nb_frames_drop = 0;
171 static int input_sync;
173 static float dts_delta_threshold = 10;
174 static float dts_error_threshold = 3600*30;
176 static int print_stats = 1;
178 static uint8_t *audio_buf;
179 static unsigned int allocated_audio_buf_size;
181 static uint8_t *input_tmp= NULL;
183 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
185 typedef struct FrameBuffer {
191 enum PixelFormat pix_fmt;
194 struct InputStream *ist;
195 struct FrameBuffer *next;
198 typedef struct InputStream {
201 int discard; /* true if stream data should be discarded */
202 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
204 AVFrame *decoded_frame;
205 AVFrame *filtered_frame;
207 int64_t start; /* time when read started */
208 /* predicted dts of the next packet read for this stream or (when there are
209 * several frames in a packet) of the next frame in current packet */
211 /* dts of the last packet read for this stream */
214 int64_t next_pts; ///< synthetic pts for the next decode frame
215 int64_t pts; ///< current pts of the decoded frame
217 int is_start; /* is 1 at the start and after a discontinuity */
218 int showed_multi_packet_warning;
221 /* a pool of free buffers for decoded data */
222 FrameBuffer *buffer_pool;
226 typedef struct InputFile {
227 AVFormatContext *ctx;
228 int eof_reached; /* true if eof reached */
229 int ist_index; /* index of first stream in input_streams */
230 int buffer_size; /* current total buffer size */
232 int nb_streams; /* number of stream that ffmpeg is aware of; may be different
233 from ctx.nb_streams if new streams appear during av_read_frame() */
237 typedef struct OutputStream {
238 int file_index; /* file index */
239 int index; /* stream index in the output file */
240 int source_index; /* InputStream index */
241 AVStream *st; /* stream in the output file */
242 int encoding_needed; /* true if encoding needed for this stream */
244 /* input pts and corresponding output pts
246 struct InputStream *sync_ist; /* input stream to sync against */
247 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
248 AVBitStreamFilterContext *bitstream_filters;
251 AVFrame *output_frame;
255 AVFrame resample_frame; /* temporary frame for image resampling */
256 struct SwsContext *img_resample_ctx; /* for image resampling */
259 int resample_pix_fmt;
260 AVRational frame_rate;
264 float frame_aspect_ratio;
266 /* forced key frames */
267 int64_t *forced_kf_pts;
273 int audio_channels_map[SWR_CH_MAX]; ///< list of the channels id to pick from the source stream
274 int audio_channels_mapped; ///< number of channels in audio_channels_map
275 int resample_sample_fmt;
276 int resample_channels;
277 int resample_sample_rate;
278 float rematrix_volume;
279 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
282 struct SwrContext *swr;
285 AVFilterContext *output_video_filter;
286 AVFilterContext *input_video_filter;
287 AVFilterBufferRef *picref;
289 AVFilterGraph *graph;
294 int is_past_recording_time;
296 const char *attachment_filename;
297 int copy_initial_nonkeyframes;
303 /* init terminal so that we can grab keys */
304 static struct termios oldtty;
305 static int restore_tty;
308 typedef struct OutputFile {
309 AVFormatContext *ctx;
311 int ost_index; /* index of the first stream in output_streams */
312 int64_t recording_time; /* desired length of the resulting file in microseconds */
313 int64_t start_time; /* start time in microseconds */
314 uint64_t limit_filesize; /* filesize limit expressed in bytes */
317 static InputStream *input_streams = NULL;
318 static int nb_input_streams = 0;
319 static InputFile *input_files = NULL;
320 static int nb_input_files = 0;
322 static OutputStream *output_streams = NULL;
323 static int nb_output_streams = 0;
324 static OutputFile *output_files = NULL;
325 static int nb_output_files = 0;
327 typedef struct OptionsContext {
328 /* input/output options */
332 SpecifierOpt *codec_names;
334 SpecifierOpt *audio_channels;
335 int nb_audio_channels;
336 SpecifierOpt *audio_sample_rate;
337 int nb_audio_sample_rate;
338 SpecifierOpt *rematrix_volume;
339 int nb_rematrix_volume;
340 SpecifierOpt *frame_rates;
342 SpecifierOpt *frame_sizes;
344 SpecifierOpt *frame_pix_fmts;
345 int nb_frame_pix_fmts;
348 int64_t input_ts_offset;
351 SpecifierOpt *ts_scale;
353 SpecifierOpt *dump_attachment;
354 int nb_dump_attachment;
357 StreamMap *stream_maps;
359 AudioChannelMap *audio_channel_maps; ///< one info entry per -map_channel
360 int nb_audio_channel_maps; ///< number of (valid) -map_channel settings
361 /* first item specifies output metadata, second is input */
362 MetadataMap (*meta_data_maps)[2];
363 int nb_meta_data_maps;
364 int metadata_global_manual;
365 int metadata_streams_manual;
366 int metadata_chapters_manual;
367 const char **attachments;
370 int chapters_input_file;
372 int64_t recording_time;
373 uint64_t limit_filesize;
379 int subtitle_disable;
382 /* indexed by output file stream index */
386 SpecifierOpt *metadata;
388 SpecifierOpt *max_frames;
390 SpecifierOpt *bitstream_filters;
391 int nb_bitstream_filters;
392 SpecifierOpt *codec_tags;
394 SpecifierOpt *sample_fmts;
396 SpecifierOpt *qscale;
398 SpecifierOpt *forced_key_frames;
399 int nb_forced_key_frames;
400 SpecifierOpt *force_fps;
402 SpecifierOpt *frame_aspect_ratios;
403 int nb_frame_aspect_ratios;
404 SpecifierOpt *rc_overrides;
406 SpecifierOpt *intra_matrices;
407 int nb_intra_matrices;
408 SpecifierOpt *inter_matrices;
409 int nb_inter_matrices;
410 SpecifierOpt *top_field_first;
411 int nb_top_field_first;
412 SpecifierOpt *metadata_map;
414 SpecifierOpt *presets;
416 SpecifierOpt *copy_initial_nonkeyframes;
417 int nb_copy_initial_nonkeyframes;
419 SpecifierOpt *filters;
424 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
427 for (i = 0; i < o->nb_ ## name; i++) {\
428 char *spec = o->name[i].specifier;\
429 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
430 outvar = o->name[i].u.type;\
436 static void reset_options(OptionsContext *o, int is_input)
438 const OptionDef *po = options;
439 OptionsContext bak= *o;
441 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
443 void *dst = (uint8_t*)o + po->u.off;
445 if (po->flags & OPT_SPEC) {
446 SpecifierOpt **so = dst;
447 int i, *count = (int*)(so + 1);
448 for (i = 0; i < *count; i++) {
449 av_freep(&(*so)[i].specifier);
450 if (po->flags & OPT_STRING)
451 av_freep(&(*so)[i].u.str);
455 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
460 av_freep(&o->stream_maps);
461 av_freep(&o->audio_channel_maps);
462 av_freep(&o->meta_data_maps);
463 av_freep(&o->streamid_map);
465 memset(o, 0, sizeof(*o));
467 if(is_input) o->recording_time = bak.recording_time;
468 else o->recording_time = INT64_MAX;
469 o->mux_max_delay = 0.7;
470 o->limit_filesize = UINT64_MAX;
471 o->chapters_input_file = INT_MAX;
477 static int alloc_buffer(AVCodecContext *s, InputStream *ist, FrameBuffer **pbuf)
479 FrameBuffer *buf = av_mallocz(sizeof(*buf));
481 const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
482 int h_chroma_shift, v_chroma_shift;
483 int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1
484 int w = s->width, h = s->height;
487 return AVERROR(ENOMEM);
489 if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
494 avcodec_align_dimensions(s, &w, &h);
495 if ((ret = av_image_alloc(buf->base, buf->linesize, w, h,
496 s->pix_fmt, 32)) < 0) {
500 /* XXX this shouldn't be needed, but some tests break without this line
501 * those decoders are buggy and need to be fixed.
502 * the following tests fail:
503 * bethsoft-vid, cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit
505 memset(buf->base[0], 128, ret);
507 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
508 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
509 const int h_shift = i==0 ? 0 : h_chroma_shift;
510 const int v_shift = i==0 ? 0 : v_chroma_shift;
511 if (s->flags & CODEC_FLAG_EMU_EDGE)
512 buf->data[i] = buf->base[i];
514 buf->data[i] = buf->base[i] +
515 FFALIGN((buf->linesize[i]*edge >> v_shift) +
516 (pixel_size*edge >> h_shift), 32);
520 buf->pix_fmt = s->pix_fmt;
527 static void free_buffer_pool(InputStream *ist)
529 FrameBuffer *buf = ist->buffer_pool;
531 ist->buffer_pool = buf->next;
532 av_freep(&buf->base[0]);
534 buf = ist->buffer_pool;
538 static void unref_buffer(InputStream *ist, FrameBuffer *buf)
540 av_assert0(buf->refcount);
542 if (!buf->refcount) {
543 buf->next = ist->buffer_pool;
544 ist->buffer_pool = buf;
548 static int codec_get_buffer(AVCodecContext *s, AVFrame *frame)
550 InputStream *ist = s->opaque;
554 if(av_image_check_size(s->width, s->height, 0, s))
557 if (!ist->buffer_pool && (ret = alloc_buffer(s, ist, &ist->buffer_pool)) < 0)
560 buf = ist->buffer_pool;
561 ist->buffer_pool = buf->next;
563 if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) {
564 av_freep(&buf->base[0]);
567 if ((ret = alloc_buffer(s, ist, &buf)) < 0)
573 frame->type = FF_BUFFER_TYPE_USER;
574 frame->extended_data = frame->data;
575 frame->pkt_pts = s->pkt ? s->pkt->pts : AV_NOPTS_VALUE;
577 for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
578 frame->base[i] = buf->base[i]; // XXX h264.c uses base though it shouldn't
579 frame->data[i] = buf->data[i];
580 frame->linesize[i] = buf->linesize[i];
586 static void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
588 InputStream *ist = s->opaque;
589 FrameBuffer *buf = frame->opaque;
592 if(frame->type!=FF_BUFFER_TYPE_USER)
593 return avcodec_default_release_buffer(s, frame);
595 for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++)
596 frame->data[i] = NULL;
598 unref_buffer(ist, buf);
601 static void filter_release_buffer(AVFilterBuffer *fb)
603 FrameBuffer *buf = fb->priv;
605 unref_buffer(buf->ist, buf);
610 static int configure_video_filters(InputStream *ist, OutputStream *ost)
612 AVFilterContext *last_filter, *filter;
613 /** filter graph containing all filters including input & output */
614 AVCodecContext *codec = ost->st->codec;
615 AVCodecContext *icodec = ist->st->codec;
616 enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE };
617 AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
618 AVRational sample_aspect_ratio;
622 ost->graph = avfilter_graph_alloc();
624 if (ist->st->sample_aspect_ratio.num) {
625 sample_aspect_ratio = ist->st->sample_aspect_ratio;
627 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
629 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
630 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
631 sample_aspect_ratio.num, sample_aspect_ratio.den);
633 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
634 "src", args, NULL, ost->graph);
638 #if FF_API_OLD_VSINK_API
639 ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
640 "out", NULL, pix_fmts, ost->graph);
642 buffersink_params->pixel_fmts = pix_fmts;
643 ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
644 "out", NULL, buffersink_params, ost->graph);
646 av_freep(&buffersink_params);
650 last_filter = ost->input_video_filter;
652 if (codec->width != icodec->width || codec->height != icodec->height) {
653 snprintf(args, 255, "%d:%d:flags=0x%X",
656 (unsigned)ost->sws_flags);
657 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
658 NULL, args, NULL, ost->graph)) < 0)
660 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
662 last_filter = filter;
665 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
666 ost->graph->scale_sws_opts = av_strdup(args);
669 AVFilterInOut *outputs = avfilter_inout_alloc();
670 AVFilterInOut *inputs = avfilter_inout_alloc();
672 outputs->name = av_strdup("in");
673 outputs->filter_ctx = last_filter;
674 outputs->pad_idx = 0;
675 outputs->next = NULL;
677 inputs->name = av_strdup("out");
678 inputs->filter_ctx = ost->output_video_filter;
682 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0)
684 av_freep(&ost->avfilter);
686 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
690 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
693 codec->width = ost->output_video_filter->inputs[0]->w;
694 codec->height = ost->output_video_filter->inputs[0]->h;
695 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
696 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
697 av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
698 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
702 #endif /* CONFIG_AVFILTER */
704 static void term_exit(void)
706 av_log(NULL, AV_LOG_QUIET, "%s", "");
709 tcsetattr (0, TCSANOW, &oldtty);
713 static volatile int received_sigterm = 0;
715 static void sigterm_handler(int sig)
717 received_sigterm = sig;
718 received_nb_signals++;
720 if(received_nb_signals > 3)
724 static void term_init(void)
730 if (tcgetattr (0, &tty) == 0) {
735 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
736 |INLCR|IGNCR|ICRNL|IXON);
737 tty.c_oflag |= OPOST;
738 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
739 tty.c_cflag &= ~(CSIZE|PARENB);
744 tcsetattr (0, TCSANOW, &tty);
746 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
749 avformat_network_deinit();
751 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
752 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
754 signal(SIGXCPU, sigterm_handler);
758 /* read a key without blocking */
759 static int read_key(void)
771 n = select(1, &rfds, NULL, NULL, &tv);
780 # if HAVE_PEEKNAMEDPIPE
782 static HANDLE input_handle;
785 input_handle = GetStdHandle(STD_INPUT_HANDLE);
786 is_pipe = !GetConsoleMode(input_handle, &dw);
789 if (stdin->_cnt > 0) {
794 /* When running under a GUI, you will end here. */
795 if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL))
812 static int decode_interrupt_cb(void *ctx)
814 return received_nb_signals > 1;
817 static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
819 void av_noreturn exit_program(int ret)
824 for (i = 0; i < nb_output_files; i++) {
825 AVFormatContext *s = output_files[i].ctx;
826 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
828 avformat_free_context(s);
829 av_dict_free(&output_files[i].opts);
831 for (i = 0; i < nb_output_streams; i++) {
832 AVBitStreamFilterContext *bsfc = output_streams[i].bitstream_filters;
834 AVBitStreamFilterContext *next = bsfc->next;
835 av_bitstream_filter_close(bsfc);
838 output_streams[i].bitstream_filters = NULL;
840 if (output_streams[i].output_frame) {
841 AVFrame *frame = output_streams[i].output_frame;
842 if (frame->extended_data != frame->data)
843 av_freep(&frame->extended_data);
847 for (i = 0; i < nb_input_files; i++) {
848 avformat_close_input(&input_files[i].ctx);
850 for (i = 0; i < nb_input_streams; i++) {
851 av_freep(&input_streams[i].decoded_frame);
852 av_freep(&input_streams[i].filtered_frame);
853 av_dict_free(&input_streams[i].opts);
854 free_buffer_pool(&input_streams[i]);
859 av_free(vstats_filename);
861 av_freep(&input_streams);
862 av_freep(&input_files);
863 av_freep(&output_streams);
864 av_freep(&output_files);
868 allocated_audio_buf_size = 0;
873 avformat_network_deinit();
875 av_freep(&input_tmp);
877 if (received_sigterm) {
878 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
879 (int) received_sigterm);
883 exit(ret); /* not all OS-es handle main() return value */
886 static void assert_avoptions(AVDictionary *m)
888 AVDictionaryEntry *t;
889 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
890 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
895 static void assert_codec_experimental(AVCodecContext *c, int encoder)
897 const char *codec_string = encoder ? "encoder" : "decoder";
899 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
900 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
901 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
902 "results.\nAdd '-strict experimental' if you want to use it.\n",
903 codec_string, c->codec->name);
904 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
905 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
906 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
907 codec_string, codec->name);
912 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
914 if (codec && codec->sample_fmts) {
915 const enum AVSampleFormat *p = codec->sample_fmts;
916 for (; *p != -1; p++) {
917 if (*p == st->codec->sample_fmt)
921 if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
922 av_log(NULL, AV_LOG_ERROR, "Conversion will not be lossless.\n");
923 if(av_get_sample_fmt_name(st->codec->sample_fmt))
924 av_log(NULL, AV_LOG_WARNING,
925 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
926 av_get_sample_fmt_name(st->codec->sample_fmt),
928 av_get_sample_fmt_name(codec->sample_fmts[0]));
929 st->codec->sample_fmt = codec->sample_fmts[0];
934 static void choose_sample_rate(AVStream *st, AVCodec *codec)
936 if (codec && codec->supported_samplerates) {
937 const int *p = codec->supported_samplerates;
939 int best_dist = INT_MAX;
941 int dist = abs(st->codec->sample_rate - *p);
942 if (dist < best_dist) {
948 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
950 st->codec->sample_rate = best;
954 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
956 if (codec && codec->pix_fmts) {
957 const enum PixelFormat *p = codec->pix_fmts;
958 int has_alpha= av_pix_fmt_descriptors[st->codec->pix_fmt].nb_components % 2 == 0;
959 enum PixelFormat best= PIX_FMT_NONE;
960 if (st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
961 if (st->codec->codec_id == CODEC_ID_MJPEG) {
962 p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE };
963 } else if (st->codec->codec_id == CODEC_ID_LJPEG) {
964 p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P,
965 PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE };
968 for (; *p != PIX_FMT_NONE; p++) {
969 best= avcodec_find_best_pix_fmt2(best, *p, st->codec->pix_fmt, has_alpha, NULL);
970 if (*p == st->codec->pix_fmt)
973 if (*p == PIX_FMT_NONE) {
974 if (st->codec->pix_fmt != PIX_FMT_NONE)
975 av_log(NULL, AV_LOG_WARNING,
976 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
977 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
979 av_pix_fmt_descriptors[best].name);
980 st->codec->pix_fmt = best;
986 get_sync_ipts(const OutputStream *ost, int64_t pts)
988 OutputFile *of = &output_files[ost->file_index];
989 return (double)(pts - of->start_time) / AV_TIME_BASE;
992 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
994 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
995 AVCodecContext *avctx = ost->st->codec;
999 * Audio encoders may split the packets -- #frames in != #packets out.
1000 * But there is no reordering, so we can limit the number of output packets
1001 * by simply dropping them here.
1002 * Counting encoded video frames needs to be done separately because of
1003 * reordering, see do_video_out()
1005 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
1006 if (ost->frame_number >= ost->max_frames)
1008 ost->frame_number++;
1012 AVPacket new_pkt = *pkt;
1013 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
1014 &new_pkt.data, &new_pkt.size,
1015 pkt->data, pkt->size,
1016 pkt->flags & AV_PKT_FLAG_KEY);
1018 av_free_packet(pkt);
1019 new_pkt.destruct = av_destruct_packet;
1021 av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
1022 bsfc->filter->name, pkt->stream_index,
1023 avctx->codec ? avctx->codec->name : "copy");
1033 pkt->stream_index = ost->index;
1034 ret = av_interleaved_write_frame(s, pkt);
1036 print_error("av_interleaved_write_frame()", ret);
1041 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1043 int fill_char = 0x00;
1044 if (sample_fmt == AV_SAMPLE_FMT_U8)
1046 memset(buf, fill_char, size);
1049 static int encode_audio_frame(AVFormatContext *s, OutputStream *ost,
1050 const uint8_t *buf, int buf_size)
1052 AVCodecContext *enc = ost->st->codec;
1053 AVFrame *frame = NULL;
1055 int ret, got_packet;
1057 av_init_packet(&pkt);
1062 if (!ost->output_frame) {
1063 ost->output_frame = avcodec_alloc_frame();
1064 if (!ost->output_frame) {
1065 av_log(NULL, AV_LOG_FATAL, "out-of-memory in encode_audio_frame()\n");
1069 frame = ost->output_frame;
1070 if (frame->extended_data != frame->data)
1071 av_freep(&frame->extended_data);
1072 avcodec_get_frame_defaults(frame);
1074 frame->nb_samples = buf_size /
1075 (enc->channels * av_get_bytes_per_sample(enc->sample_fmt));
1076 if ((ret = avcodec_fill_audio_frame(frame, enc->channels, enc->sample_fmt,
1077 buf, buf_size, 1)) < 0) {
1078 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1082 ost->sync_opts += frame->nb_samples;
1086 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
1087 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
1094 if (pkt.pts != AV_NOPTS_VALUE)
1095 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1096 if (pkt.duration > 0)
1097 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1099 write_frame(s, &pkt, ost);
1101 audio_size += pkt.size;
1103 av_free_packet(&pkt);
1109 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
1110 InputStream *ist, AVFrame *decoded_frame)
1113 int64_t audio_buf_size, size_out;
1115 int frame_bytes, resample_changed;
1116 AVCodecContext *enc = ost->st->codec;
1117 AVCodecContext *dec = ist->st->codec;
1118 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1119 int isize = av_get_bytes_per_sample(dec->sample_fmt);
1120 uint8_t *buf = decoded_frame->data[0];
1121 int size = decoded_frame->nb_samples * dec->channels * isize;
1122 int64_t allocated_for_size = size;
1125 audio_buf_size = (allocated_for_size + isize * dec->channels - 1) / (isize * dec->channels);
1126 audio_buf_size = (audio_buf_size * enc->sample_rate + dec->sample_rate) / dec->sample_rate;
1127 audio_buf_size = audio_buf_size * 2 + 10000; // safety factors for the deprecated resampling API
1128 audio_buf_size = FFMAX(audio_buf_size, enc->frame_size);
1129 audio_buf_size *= osize * enc->channels;
1131 if (audio_buf_size > INT_MAX) {
1132 av_log(NULL, AV_LOG_FATAL, "Buffer sizes too large\n");
1136 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
1138 av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
1142 if (enc->channels != dec->channels
1143 || enc->sample_fmt != dec->sample_fmt
1144 || enc->sample_rate!= dec->sample_rate
1146 ost->audio_resample = 1;
1148 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
1149 ost->resample_channels != dec->channels ||
1150 ost->resample_sample_rate != dec->sample_rate;
1152 if ((ost->audio_resample && !ost->swr) || resample_changed || ost->audio_channels_mapped) {
1153 if (resample_changed) {
1154 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",
1155 ist->file_index, ist->st->index,
1156 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
1157 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
1158 ost->resample_sample_fmt = dec->sample_fmt;
1159 ost->resample_channels = dec->channels;
1160 ost->resample_sample_rate = dec->sample_rate;
1161 swr_free(&ost->swr);
1163 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
1164 if (audio_sync_method <= 1 && !ost->audio_channels_mapped &&
1165 ost->resample_sample_fmt == enc->sample_fmt &&
1166 ost->resample_channels == enc->channels &&
1167 ost->resample_sample_rate == enc->sample_rate) {
1169 ost->audio_resample = 0;
1171 ost->swr = swr_alloc_set_opts(ost->swr,
1172 enc->channel_layout, enc->sample_fmt, enc->sample_rate,
1173 dec->channel_layout, dec->sample_fmt, dec->sample_rate,
1175 if (ost->audio_channels_mapped)
1176 swr_set_channel_mapping(ost->swr, ost->audio_channels_map);
1177 av_opt_set_double(ost->swr, "rmvol", ost->rematrix_volume, 0);
1178 if (ost->audio_channels_mapped) {
1179 av_opt_set_int(ost->swr, "icl", av_get_default_channel_layout(ost->audio_channels_mapped), 0);
1180 av_opt_set_int(ost->swr, "uch", ost->audio_channels_mapped, 0);
1182 if (av_opt_set_int(ost->swr, "ich", dec->channels, 0) < 0) {
1183 av_log(NULL, AV_LOG_FATAL, "Unsupported number of input channels\n");
1186 if (av_opt_set_int(ost->swr, "och", enc->channels, 0) < 0) {
1187 av_log(NULL, AV_LOG_FATAL, "Unsupported number of output channels\n");
1190 if(audio_sync_method>1) av_opt_set_int(ost->swr, "flags", SWR_FLAG_RESAMPLE, 0);
1191 if(ost->swr && swr_init(ost->swr) < 0){
1192 av_log(NULL, AV_LOG_FATAL, "swr_init() failed\n");
1193 swr_free(&ost->swr);
1197 av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
1198 dec->channels, dec->sample_rate,
1199 enc->channels, enc->sample_rate);
1205 av_assert0(ost->audio_resample || dec->sample_fmt==enc->sample_fmt);
1207 if (audio_sync_method) {
1208 double delta = get_sync_ipts(ost, ist->pts) * enc->sample_rate - ost->sync_opts -
1209 av_fifo_size(ost->fifo) / (enc->channels * osize);
1210 int idelta = delta * dec->sample_rate / enc->sample_rate;
1211 int byte_delta = idelta * isize * dec->channels;
1213 // FIXME resample delay
1214 if (fabs(delta) > 50) {
1215 if (ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate) {
1216 if (byte_delta < 0) {
1217 byte_delta = FFMAX(byte_delta, -size);
1220 av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
1221 -byte_delta / (isize * dec->channels));
1226 input_tmp = av_realloc(input_tmp, byte_delta + size);
1228 if (byte_delta > allocated_for_size - size) {
1229 allocated_for_size = byte_delta + (int64_t)size;
1234 generate_silence(input_tmp, dec->sample_fmt, byte_delta);
1235 memcpy(input_tmp + byte_delta, buf, size);
1238 av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
1240 } else if (audio_sync_method > 1) {
1241 int comp = av_clip(delta, -audio_sync_method, audio_sync_method);
1242 av_assert0(ost->audio_resample);
1243 av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
1244 delta, comp, enc->sample_rate);
1245 // 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));
1246 swr_set_compensation(ost->swr, comp, enc->sample_rate);
1250 ost->sync_opts = lrintf(get_sync_ipts(ost, ist->pts) * enc->sample_rate) -
1251 av_fifo_size(ost->fifo) / (enc->channels * osize); // FIXME wrong
1253 if (ost->audio_resample || ost->audio_channels_mapped) {
1255 size_out = swr_convert(ost->swr, ( uint8_t*[]){buftmp}, audio_buf_size / (enc->channels * osize),
1256 (const uint8_t*[]){buf }, size / (dec->channels * isize));
1257 size_out = size_out * enc->channels * osize;
1263 av_assert0(ost->audio_resample || dec->sample_fmt==enc->sample_fmt);
1265 /* now encode as many frames as possible */
1266 if (!(enc->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
1267 /* output resampled raw samples */
1268 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
1269 av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
1272 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
1274 frame_bytes = enc->frame_size * osize * enc->channels;
1276 while (av_fifo_size(ost->fifo) >= frame_bytes) {
1277 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
1278 encode_audio_frame(s, ost, audio_buf, frame_bytes);
1281 encode_audio_frame(s, ost, buftmp, size_out);
1285 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1287 AVCodecContext *dec;
1288 AVPicture *picture2;
1289 AVPicture picture_tmp;
1292 dec = ist->st->codec;
1294 /* deinterlace : must be done before any resize */
1295 if (do_deinterlace) {
1298 /* create temporary picture */
1299 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1300 buf = av_malloc(size);
1304 picture2 = &picture_tmp;
1305 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1307 if (avpicture_deinterlace(picture2, picture,
1308 dec->pix_fmt, dec->width, dec->height) < 0) {
1309 /* if error, do not deinterlace */
1310 av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
1319 if (picture != picture2)
1320 *picture = *picture2;
1324 static void do_subtitle_out(AVFormatContext *s,
1330 static uint8_t *subtitle_out = NULL;
1331 int subtitle_out_max_size = 1024 * 1024;
1332 int subtitle_out_size, nb, i;
1333 AVCodecContext *enc;
1336 if (pts == AV_NOPTS_VALUE) {
1337 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
1343 enc = ost->st->codec;
1345 if (!subtitle_out) {
1346 subtitle_out = av_malloc(subtitle_out_max_size);
1349 /* Note: DVB subtitle need one packet to draw them and one other
1350 packet to clear them */
1351 /* XXX: signal it in the codec context ? */
1352 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1357 for (i = 0; i < nb; i++) {
1358 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
1360 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1361 // start_display_time is required to be 0
1362 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
1363 sub->end_display_time -= sub->start_display_time;
1364 sub->start_display_time = 0;
1365 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1366 subtitle_out_max_size, sub);
1367 if (subtitle_out_size < 0) {
1368 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
1372 av_init_packet(&pkt);
1373 pkt.data = subtitle_out;
1374 pkt.size = subtitle_out_size;
1375 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1376 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1377 /* XXX: the pts correction is handled here. Maybe handling
1378 it in the codec would be better */
1380 pkt.pts += 90 * sub->start_display_time;
1382 pkt.pts += 90 * sub->end_display_time;
1384 write_frame(s, &pkt, ost);
1388 static void do_video_resample(OutputStream *ost,
1390 AVFrame *in_picture,
1391 AVFrame **out_picture)
1394 *out_picture = in_picture;
1396 AVCodecContext *dec = ist->st->codec;
1397 AVCodecContext *enc = ost->st->codec;
1398 int resample_changed = ost->resample_width != in_picture->width ||
1399 ost->resample_height != in_picture->height ||
1400 ost->resample_pix_fmt != in_picture->format;
1402 *out_picture = in_picture;
1403 if (resample_changed) {
1404 av_log(NULL, AV_LOG_INFO,
1405 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s / frm size:%dx%d fmt:%s\n",
1406 ist->file_index, ist->st->index,
1407 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1408 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt),
1409 in_picture->width, in_picture->height, av_get_pix_fmt_name(in_picture->format));
1410 ost->resample_width = in_picture->width;
1411 ost->resample_height = in_picture->height;
1412 ost->resample_pix_fmt = in_picture->format;
1415 ost->video_resample = in_picture->width != enc->width ||
1416 in_picture->height != enc->height ||
1417 in_picture->format != enc->pix_fmt;
1419 if (ost->video_resample) {
1420 *out_picture = &ost->resample_frame;
1421 if (!ost->img_resample_ctx || resample_changed) {
1422 /* initialize the destination picture */
1423 if (!ost->resample_frame.data[0]) {
1424 avcodec_get_frame_defaults(&ost->resample_frame);
1425 if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
1426 enc->width, enc->height)) {
1427 av_log(NULL, AV_LOG_FATAL, "Cannot allocate temp picture, check pix fmt\n");
1431 /* initialize a new scaler context */
1432 sws_freeContext(ost->img_resample_ctx);
1433 ost->img_resample_ctx = sws_getContext(in_picture->width, in_picture->height, in_picture->format,
1434 enc->width, enc->height, enc->pix_fmt,
1435 ost->sws_flags, NULL, NULL, NULL);
1436 if (ost->img_resample_ctx == NULL) {
1437 av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
1441 sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1442 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1447 static double psnr(double d)
1449 return -10.0 * log(d) / log(10.0);
1452 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1455 AVCodecContext *enc;
1457 double ti1, bitrate, avg_bitrate;
1459 /* this is executed just the first time do_video_stats is called */
1461 vstats_file = fopen(vstats_filename, "w");
1468 enc = ost->st->codec;
1469 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1470 frame_number = ost->frame_number;
1471 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
1472 if (enc->flags&CODEC_FLAG_PSNR)
1473 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
1475 fprintf(vstats_file,"f_size= %6d ", frame_size);
1476 /* compute pts value */
1477 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1481 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1482 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1483 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1484 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1485 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1490 static void do_video_out(AVFormatContext *s,
1493 AVFrame *in_picture,
1496 int nb_frames, i, ret, format_video_sync;
1497 AVFrame *final_picture;
1498 AVCodecContext *enc;
1500 double duration = 0;
1503 enc = ost->st->codec;
1505 if (ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE) {
1506 duration = FFMAX(av_q2d(ist->st->time_base), av_q2d(ist->st->codec->time_base));
1507 if(ist->st->avg_frame_rate.num)
1508 duration= FFMAX(duration, 1/av_q2d(ist->st->avg_frame_rate));
1510 duration /= av_q2d(enc->time_base);
1513 sync_ipts = get_sync_ipts(ost, in_picture->pts) / av_q2d(enc->time_base);
1515 /* by default, we output a single frame */
1518 format_video_sync = video_sync_method;
1519 if (format_video_sync == VSYNC_AUTO)
1520 format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : 1;
1522 if (format_video_sync != VSYNC_PASSTHROUGH && format_video_sync != VSYNC_DROP) {
1523 double vdelta = sync_ipts - ost->sync_opts + duration;
1524 // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1527 else if (format_video_sync == VSYNC_VFR) {
1528 if (vdelta <= -0.6) {
1530 } else if (vdelta > 0.6)
1531 ost->sync_opts = lrintf(sync_ipts);
1532 } else if (vdelta > 1.1)
1533 nb_frames = lrintf(vdelta);
1534 if (nb_frames == 0) {
1536 av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
1537 } else if (nb_frames > 1) {
1538 nb_frames_dup += nb_frames - 1;
1539 av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
1542 ost->sync_opts = lrintf(sync_ipts);
1544 nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1548 do_video_resample(ost, ist, in_picture, &final_picture);
1550 /* duplicates frame if needed */
1551 for (i = 0; i < nb_frames; i++) {
1553 av_init_packet(&pkt);
1557 if (s->oformat->flags & AVFMT_RAWPICTURE &&
1558 enc->codec->id == CODEC_ID_RAWVIDEO) {
1559 /* raw pictures are written as AVPicture structure to
1560 avoid any copies. We support temporarily the older
1562 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1563 enc->coded_frame->top_field_first = in_picture->top_field_first;
1564 pkt.data = (uint8_t *)final_picture;
1565 pkt.size = sizeof(AVPicture);
1566 pkt.pts = av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1567 pkt.flags |= AV_PKT_FLAG_KEY;
1569 write_frame(s, &pkt, ost);
1572 AVFrame big_picture;
1574 big_picture = *final_picture;
1575 /* better than nothing: use input picture interlaced
1577 big_picture.interlaced_frame = in_picture->interlaced_frame;
1578 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1579 if (ost->top_field_first == -1)
1580 big_picture.top_field_first = in_picture->top_field_first;
1582 big_picture.top_field_first = !!ost->top_field_first;
1585 /* handles same_quant here. This is not correct because it may
1586 not be a global option */
1587 big_picture.quality = quality;
1588 if (!enc->me_threshold)
1589 big_picture.pict_type = 0;
1590 big_picture.pts = ost->sync_opts;
1591 if (ost->forced_kf_index < ost->forced_kf_count &&
1592 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1593 big_picture.pict_type = AV_PICTURE_TYPE_I;
1594 ost->forced_kf_index++;
1596 ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
1598 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1603 if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
1604 pkt.pts = ost->sync_opts;
1606 if (pkt.pts != AV_NOPTS_VALUE)
1607 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1608 if (pkt.dts != AV_NOPTS_VALUE)
1609 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1611 if (format_video_sync == VSYNC_DROP)
1612 pkt.pts = pkt.dts = AV_NOPTS_VALUE;
1614 write_frame(s, &pkt, ost);
1615 frame_size = pkt.size;
1616 video_size += pkt.size;
1618 /* if two pass, output log */
1619 if (ost->logfile && enc->stats_out) {
1620 fprintf(ost->logfile, "%s", enc->stats_out);
1626 * For video, number of frames in == number of packets out.
1627 * But there may be reordering, so we can't throw away frames on encoder
1628 * flush, we need to limit them here, before they go into encoder.
1630 ost->frame_number++;
1632 if (vstats_filename && frame_size)
1633 do_video_stats(output_files[ost->file_index].ctx, ost, frame_size);
1636 static void print_report(OutputFile *output_files,
1637 OutputStream *ost_table, int nb_ostreams,
1638 int is_last_report, int64_t timer_start, int64_t cur_time)
1642 AVFormatContext *oc;
1644 AVCodecContext *enc;
1645 int frame_number, vid, i;
1647 int64_t pts = INT64_MAX;
1648 static int64_t last_time = -1;
1649 static int qp_histogram[52];
1650 int hours, mins, secs, us;
1652 if (!print_stats && !is_last_report)
1655 if (!is_last_report) {
1656 if (last_time == -1) {
1657 last_time = cur_time;
1660 if ((cur_time - last_time) < 500000)
1662 last_time = cur_time;
1666 oc = output_files[0].ctx;
1668 total_size = avio_size(oc->pb);
1669 if (total_size < 0) { // FIXME improve avio_size() so it works with non seekable output too
1670 total_size = avio_tell(oc->pb);
1677 for (i = 0; i < nb_ostreams; i++) {
1679 ost = &ost_table[i];
1680 enc = ost->st->codec;
1681 if (!ost->stream_copy && enc->coded_frame)
1682 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
1683 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1684 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1686 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1687 float t = (cur_time-timer_start) / 1000000.0;
1689 frame_number = ost->frame_number;
1690 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1691 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
1693 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1697 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
1699 for (j = 0; j < 32; j++)
1700 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
1702 if (enc->flags&CODEC_FLAG_PSNR) {
1704 double error, error_sum = 0;
1705 double scale, scale_sum = 0;
1706 char type[3] = { 'Y','U','V' };
1707 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1708 for (j = 0; j < 3; j++) {
1709 if (is_last_report) {
1710 error = enc->error[j];
1711 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1713 error = enc->coded_frame->error[j];
1714 scale = enc->width * enc->height * 255.0 * 255.0;
1720 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
1722 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1726 /* compute min output value */
1727 pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
1728 ost->st->time_base, AV_TIME_BASE_Q));
1731 secs = pts / AV_TIME_BASE;
1732 us = pts % AV_TIME_BASE;
1738 bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1740 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1741 "size=%8.0fkB time=", total_size / 1024.0);
1742 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1743 "%02d:%02d:%02d.%02d ", hours, mins, secs,
1744 (100 * us) / AV_TIME_BASE);
1745 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1746 "bitrate=%6.1fkbits/s", bitrate);
1748 if (nb_frames_dup || nb_frames_drop)
1749 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1750 nb_frames_dup, nb_frames_drop);
1752 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1756 if (is_last_report) {
1757 int64_t raw= audio_size + video_size + extra_size;
1758 av_log(NULL, AV_LOG_INFO, "\n");
1759 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1760 video_size / 1024.0,
1761 audio_size / 1024.0,
1762 extra_size / 1024.0,
1763 100.0 * (total_size - raw) / raw
1765 if(video_size + audio_size + extra_size == 0){
1766 av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
1771 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1775 for (i = 0; i < nb_ostreams; i++) {
1776 OutputStream *ost = &ost_table[i];
1777 AVCodecContext *enc = ost->st->codec;
1778 AVFormatContext *os = output_files[ost->file_index].ctx;
1779 int stop_encoding = 0;
1781 if (!ost->encoding_needed)
1784 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1786 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
1791 int fifo_bytes, got_packet;
1792 av_init_packet(&pkt);
1796 switch (ost->st->codec->codec_type) {
1797 case AVMEDIA_TYPE_AUDIO:
1798 fifo_bytes = av_fifo_size(ost->fifo);
1799 if (fifo_bytes > 0) {
1800 /* encode any samples remaining in fifo */
1801 int frame_bytes = fifo_bytes;
1803 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1805 /* pad last frame with silence if needed */
1806 if (!(enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME)) {
1807 frame_bytes = enc->frame_size * enc->channels *
1808 av_get_bytes_per_sample(enc->sample_fmt);
1809 if (allocated_audio_buf_size < frame_bytes)
1811 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1813 encode_audio_frame(os, ost, audio_buf, frame_bytes);
1815 /* flush encoder with NULL frames until it is done
1816 returning packets */
1817 if (encode_audio_frame(os, ost, NULL, 0) == 0) {
1823 case AVMEDIA_TYPE_VIDEO:
1824 ret = avcodec_encode_video2(enc, &pkt, NULL, &got_packet);
1826 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
1829 video_size += pkt.size;
1830 if (ost->logfile && enc->stats_out) {
1831 fprintf(ost->logfile, "%s", enc->stats_out);
1837 if (pkt.pts != AV_NOPTS_VALUE)
1838 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1839 if (pkt.dts != AV_NOPTS_VALUE)
1840 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1841 write_frame(os, &pkt, ost);
1853 * Check whether a packet from ist should be written into ost at this time
1855 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1857 OutputFile *of = &output_files[ost->file_index];
1858 int ist_index = ist - input_streams;
1860 if (ost->source_index != ist_index)
1863 if (of->start_time && ist->pts < of->start_time)
1866 if (of->recording_time != INT64_MAX &&
1867 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1868 (AVRational){ 1, 1000000 }) >= 0) {
1869 ost->is_past_recording_time = 1;
1876 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1878 OutputFile *of = &output_files[ost->file_index];
1879 int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1883 av_init_packet(&opkt);
1885 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1886 !ost->copy_initial_nonkeyframes)
1889 /* force the input stream PTS */
1890 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1891 audio_size += pkt->size;
1892 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1893 video_size += pkt->size;
1897 if (pkt->pts != AV_NOPTS_VALUE)
1898 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1900 opkt.pts = AV_NOPTS_VALUE;
1902 if (pkt->dts == AV_NOPTS_VALUE)
1903 opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
1905 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1906 opkt.dts -= ost_tb_start_time;
1908 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1909 opkt.flags = pkt->flags;
1911 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1912 if ( ost->st->codec->codec_id != CODEC_ID_H264
1913 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1914 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1916 if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
1917 opkt.destruct = av_destruct_packet;
1919 opkt.data = pkt->data;
1920 opkt.size = pkt->size;
1922 if (of->ctx->oformat->flags & AVFMT_RAWPICTURE) {
1923 /* store AVPicture in AVPacket, as expected by the output format */
1924 avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1925 opkt.data = (uint8_t *)&pict;
1926 opkt.size = sizeof(AVPicture);
1927 opkt.flags |= AV_PKT_FLAG_KEY;
1930 write_frame(of->ctx, &opkt, ost);
1931 ost->st->codec->frame_number++;
1932 av_free_packet(&opkt);
1935 static void rate_emu_sleep(InputStream *ist)
1937 if (input_files[ist->file_index].rate_emu) {
1938 int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
1939 int64_t now = av_gettime() - ist->start;
1945 static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1947 AVFrame *decoded_frame;
1948 AVCodecContext *avctx = ist->st->codec;
1949 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1952 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
1953 return AVERROR(ENOMEM);
1955 avcodec_get_frame_defaults(ist->decoded_frame);
1956 decoded_frame = ist->decoded_frame;
1958 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1964 /* no audio frame */
1968 /* if the decoder provides a pts, use it instead of the last packet pts.
1969 the decoder could be delaying output by a packet or more. */
1970 if (decoded_frame->pts != AV_NOPTS_VALUE)
1971 ist->dts = ist->next_dts = ist->pts = ist->next_pts = decoded_frame->pts;
1973 /* increment next_dts to use for the case where the input stream does not
1974 have timestamps or there are multiple frames in the packet */
1975 ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1977 ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
1981 // preprocess audio (volume)
1982 if (audio_volume != 256) {
1983 int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
1984 void *samples = decoded_frame->data[0];
1985 switch (avctx->sample_fmt) {
1986 case AV_SAMPLE_FMT_U8:
1988 uint8_t *volp = samples;
1989 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1990 int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
1991 *volp++ = av_clip_uint8(v);
1995 case AV_SAMPLE_FMT_S16:
1997 int16_t *volp = samples;
1998 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
1999 int v = ((*volp) * audio_volume + 128) >> 8;
2000 *volp++ = av_clip_int16(v);
2004 case AV_SAMPLE_FMT_S32:
2006 int32_t *volp = samples;
2007 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
2008 int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
2009 *volp++ = av_clipl_int32(v);
2013 case AV_SAMPLE_FMT_FLT:
2015 float *volp = samples;
2016 float scale = audio_volume / 256.f;
2017 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
2022 case AV_SAMPLE_FMT_DBL:
2024 double *volp = samples;
2025 double scale = audio_volume / 256.;
2026 for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
2032 av_log(NULL, AV_LOG_FATAL,
2033 "Audio volume adjustment on sample format %s is not supported.\n",
2034 av_get_sample_fmt_name(ist->st->codec->sample_fmt));
2039 rate_emu_sleep(ist);
2041 for (i = 0; i < nb_output_streams; i++) {
2042 OutputStream *ost = &output_streams[i];
2044 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2046 do_audio_out(output_files[ost->file_index].ctx, ost, ist, decoded_frame);
2052 static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
2054 AVFrame *decoded_frame;
2055 void *buffer_to_free = NULL;
2058 int64_t *best_effort_timestamp;
2059 AVRational *frame_sample_aspect;
2061 if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
2062 return AVERROR(ENOMEM);
2064 avcodec_get_frame_defaults(ist->decoded_frame);
2065 decoded_frame = ist->decoded_frame;
2066 pkt->pts = *pkt_pts;
2067 pkt->dts = ist->dts;
2068 *pkt_pts = AV_NOPTS_VALUE;
2070 ret = avcodec_decode_video2(ist->st->codec,
2071 decoded_frame, got_output, pkt);
2075 quality = same_quant ? decoded_frame->quality : 0;
2077 /* no picture yet */
2081 best_effort_timestamp= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "best_effort_timestamp");
2082 if(*best_effort_timestamp != AV_NOPTS_VALUE)
2083 ist->next_pts = ist->pts = decoded_frame->pts = *best_effort_timestamp;
2087 pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
2090 frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
2091 for(i=0;i<nb_output_streams;i++) {
2092 OutputStream *ost = ost = &output_streams[i];
2093 if(check_output_constraints(ist, ost) && ost->encoding_needed){
2094 if (!frame_sample_aspect->num)
2095 *frame_sample_aspect = ist->st->sample_aspect_ratio;
2096 decoded_frame->pts = ist->pts;
2097 if (ist->dr1 && decoded_frame->type==FF_BUFFER_TYPE_USER) {
2098 FrameBuffer *buf = decoded_frame->opaque;
2099 AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
2100 decoded_frame->data, decoded_frame->linesize,
2101 AV_PERM_READ | AV_PERM_PRESERVE,
2102 ist->st->codec->width, ist->st->codec->height,
2103 ist->st->codec->pix_fmt);
2105 avfilter_copy_frame_props(fb, decoded_frame);
2106 fb->buf->priv = buf;
2107 fb->buf->free = filter_release_buffer;
2110 av_buffersrc_buffer(ost->input_video_filter, fb);
2112 if((av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame, AV_VSRC_BUF_FLAG_OVERWRITE)) < 0){
2113 av_log(0, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
2120 rate_emu_sleep(ist);
2122 for (i = 0; i < nb_output_streams; i++) {
2123 OutputStream *ost = &output_streams[i];
2125 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2129 while (av_buffersink_poll_frame(ost->output_video_filter)) {
2130 AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
2131 AVFrame *filtered_frame;
2133 if (av_buffersink_get_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0){
2134 av_log(0, AV_LOG_WARNING, "AV Filter told us it has a frame available but failed to output one\n");
2137 if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
2138 ret = AVERROR(ENOMEM);
2141 avcodec_get_frame_defaults(ist->filtered_frame);
2142 filtered_frame = ist->filtered_frame;
2143 *filtered_frame= *decoded_frame; //for me_threshold
2145 avfilter_fill_frame_from_video_buffer_ref(filtered_frame, ost->picref);
2146 filtered_frame->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
2148 if (ost->picref->video && !ost->frame_aspect_ratio)
2149 ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
2150 do_video_out(output_files[ost->file_index].ctx, ost, ist, filtered_frame,
2151 same_quant ? quality : ost->st->codec->global_quality);
2153 avfilter_unref_buffer(ost->picref);
2156 do_video_out(output_files[ost->file_index].ctx, ost, ist, decoded_frame,
2157 same_quant ? quality : ost->st->codec->global_quality);
2162 av_free(buffer_to_free);
2166 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
2168 AVSubtitle subtitle;
2169 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
2170 &subtitle, got_output, pkt);
2176 rate_emu_sleep(ist);
2178 for (i = 0; i < nb_output_streams; i++) {
2179 OutputStream *ost = &output_streams[i];
2181 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
2184 do_subtitle_out(output_files[ost->file_index].ctx, ost, ist, &subtitle, pkt->pts);
2187 avsubtitle_free(&subtitle);
2191 /* pkt = NULL means EOF (needed to flush decoder buffers) */
2192 static int output_packet(InputStream *ist,
2193 OutputStream *ost_table, int nb_ostreams,
2194 const AVPacket *pkt)
2198 int64_t pkt_pts = AV_NOPTS_VALUE;
2202 if (ist->next_dts == AV_NOPTS_VALUE)
2203 ist->next_dts = ist->dts;
2204 if (ist->next_pts == AV_NOPTS_VALUE)
2205 ist->next_pts = ist->pts;
2209 av_init_packet(&avpkt);
2217 if (pkt->dts != AV_NOPTS_VALUE) {
2218 ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2219 if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
2220 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
2222 if(pkt->pts != AV_NOPTS_VALUE)
2223 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
2225 // while we have more to decode or while the decoder did output something on EOF
2226 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
2230 ist->pts = ist->next_pts;
2231 ist->dts = ist->next_dts;
2233 if (avpkt.size && avpkt.size != pkt->size) {
2234 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
2235 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
2236 ist->showed_multi_packet_warning = 1;
2239 switch (ist->st->codec->codec_type) {
2240 case AVMEDIA_TYPE_AUDIO:
2241 ret = transcode_audio (ist, &avpkt, &got_output);
2243 case AVMEDIA_TYPE_VIDEO:
2244 ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
2245 if (avpkt.duration) {
2246 duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
2247 } else if(ist->st->codec->time_base.num != 0) {
2248 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
2249 duration = ((int64_t)AV_TIME_BASE *
2250 ist->st->codec->time_base.num * ticks) /
2251 ist->st->codec->time_base.den;
2255 if(ist->dts != AV_NOPTS_VALUE && duration) {
2256 ist->next_dts += duration;
2258 ist->next_dts = AV_NOPTS_VALUE;
2261 ist->next_pts += duration; //FIXME the duration is not correct in some cases
2263 case AVMEDIA_TYPE_SUBTITLE:
2264 ret = transcode_subtitles(ist, &avpkt, &got_output);
2274 avpkt.pts= AV_NOPTS_VALUE;
2276 // touch data and size only if not EOF
2278 if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
2288 /* handle stream copy */
2289 if (!ist->decoding_needed) {
2290 rate_emu_sleep(ist);
2291 ist->dts = ist->next_dts;
2292 switch (ist->st->codec->codec_type) {
2293 case AVMEDIA_TYPE_AUDIO:
2294 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
2295 ist->st->codec->sample_rate;
2297 case AVMEDIA_TYPE_VIDEO:
2298 if (pkt->duration) {
2299 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
2300 } else if(ist->st->codec->time_base.num != 0) {
2301 int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
2302 ist->next_dts += ((int64_t)AV_TIME_BASE *
2303 ist->st->codec->time_base.num * ticks) /
2304 ist->st->codec->time_base.den;
2308 ist->pts = ist->dts;
2309 ist->next_pts = ist->next_dts;
2311 for (i = 0; pkt && i < nb_ostreams; i++) {
2312 OutputStream *ost = &ost_table[i];
2314 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
2317 do_streamcopy(ist, ost, pkt);
2323 static void print_sdp(OutputFile *output_files, int n)
2327 AVFormatContext **avc = av_malloc(sizeof(*avc) * n);
2331 for (i = 0; i < n; i++)
2332 avc[i] = output_files[i].ctx;
2334 av_sdp_create(avc, n, sdp, sizeof(sdp));
2335 printf("SDP:\n%s\n", sdp);
2340 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
2341 char *error, int error_len)
2343 InputStream *ist = &input_streams[ist_index];
2344 if (ist->decoding_needed) {
2345 AVCodec *codec = ist->dec;
2347 snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
2348 avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
2349 return AVERROR(EINVAL);
2352 ist->dr1 = codec->capabilities & CODEC_CAP_DR1;
2353 if (codec->type == AVMEDIA_TYPE_VIDEO && ist->dr1) {
2354 ist->st->codec->get_buffer = codec_get_buffer;
2355 ist->st->codec->release_buffer = codec_release_buffer;
2356 ist->st->codec->opaque = ist;
2359 if (!av_dict_get(ist->opts, "threads", NULL, 0))
2360 av_dict_set(&ist->opts, "threads", "auto", 0);
2361 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2362 snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
2363 ist->file_index, ist->st->index);
2364 return AVERROR(EINVAL);
2366 assert_codec_experimental(ist->st->codec, 0);
2367 assert_avoptions(ist->opts);
2370 ist->dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
2371 ist->next_pts = AV_NOPTS_VALUE;
2372 ist->next_dts = AV_NOPTS_VALUE;
2378 static int transcode_init(OutputFile *output_files, int nb_output_files,
2379 InputFile *input_files, int nb_input_files)
2381 int ret = 0, i, j, k;
2382 AVFormatContext *oc;
2383 AVCodecContext *codec, *icodec;
2389 /* init framerate emulation */
2390 for (i = 0; i < nb_input_files; i++) {
2391 InputFile *ifile = &input_files[i];
2392 if (ifile->rate_emu)
2393 for (j = 0; j < ifile->nb_streams; j++)
2394 input_streams[j + ifile->ist_index].start = av_gettime();
2397 /* output stream init */
2398 for (i = 0; i < nb_output_files; i++) {
2399 oc = output_files[i].ctx;
2400 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
2401 av_dump_format(oc, i, oc->filename, 1);
2402 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
2403 return AVERROR(EINVAL);
2407 /* for each output stream, we compute the right encoding parameters */
2408 for (i = 0; i < nb_output_streams; i++) {
2409 ost = &output_streams[i];
2410 oc = output_files[ost->file_index].ctx;
2411 ist = &input_streams[ost->source_index];
2413 if (ost->attachment_filename)
2416 codec = ost->st->codec;
2417 icodec = ist->st->codec;
2419 ost->st->disposition = ist->st->disposition;
2420 codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
2421 codec->chroma_sample_location = icodec->chroma_sample_location;
2423 if (ost->stream_copy) {
2424 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2426 if (extra_size > INT_MAX) {
2427 return AVERROR(EINVAL);
2430 /* if stream_copy is selected, no need to decode or encode */
2431 codec->codec_id = icodec->codec_id;
2432 codec->codec_type = icodec->codec_type;
2434 if (!codec->codec_tag) {
2435 if (!oc->oformat->codec_tag ||
2436 av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
2437 av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
2438 codec->codec_tag = icodec->codec_tag;
2441 codec->bit_rate = icodec->bit_rate;
2442 codec->rc_max_rate = icodec->rc_max_rate;
2443 codec->rc_buffer_size = icodec->rc_buffer_size;
2444 codec->field_order = icodec->field_order;
2445 codec->extradata = av_mallocz(extra_size);
2446 if (!codec->extradata) {
2447 return AVERROR(ENOMEM);
2449 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2450 codec->extradata_size= icodec->extradata_size;
2452 codec->time_base = ist->st->time_base;
2454 * Avi is a special case here because it supports variable fps but
2455 * having the fps and timebase differe significantly adds quite some
2458 if(!strcmp(oc->oformat->name, "avi")) {
2459 if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
2460 && av_q2d(ist->st->time_base) < 1.0/500
2462 codec->time_base = icodec->time_base;
2463 codec->time_base.num *= icodec->ticks_per_frame;
2464 codec->time_base.den *= 2;
2466 } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
2467 && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
2468 && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
2470 if( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
2471 && av_q2d(ist->st->time_base) < 1.0/500
2473 codec->time_base = icodec->time_base;
2474 codec->time_base.num *= icodec->ticks_per_frame;
2477 av_reduce(&codec->time_base.num, &codec->time_base.den,
2478 codec->time_base.num, codec->time_base.den, INT_MAX);
2480 switch (codec->codec_type) {
2481 case AVMEDIA_TYPE_AUDIO:
2482 if (audio_volume != 256) {
2483 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
2486 codec->channel_layout = icodec->channel_layout;
2487 codec->sample_rate = icodec->sample_rate;
2488 codec->channels = icodec->channels;
2489 codec->frame_size = icodec->frame_size;
2490 codec->audio_service_type = icodec->audio_service_type;
2491 codec->block_align = icodec->block_align;
2493 case AVMEDIA_TYPE_VIDEO:
2494 codec->pix_fmt = icodec->pix_fmt;
2495 codec->width = icodec->width;
2496 codec->height = icodec->height;
2497 codec->has_b_frames = icodec->has_b_frames;
2498 if (!codec->sample_aspect_ratio.num) {
2499 codec->sample_aspect_ratio =
2500 ost->st->sample_aspect_ratio =
2501 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2502 ist->st->codec->sample_aspect_ratio.num ?
2503 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2505 ost->st->avg_frame_rate = ist->st->avg_frame_rate;
2507 case AVMEDIA_TYPE_SUBTITLE:
2508 codec->width = icodec->width;
2509 codec->height = icodec->height;
2511 case AVMEDIA_TYPE_DATA:
2512 case AVMEDIA_TYPE_ATTACHMENT:
2519 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2521 ist->decoding_needed = 1;
2522 ost->encoding_needed = 1;
2524 switch (codec->codec_type) {
2525 case AVMEDIA_TYPE_AUDIO:
2526 ost->fifo = av_fifo_alloc(1024);
2528 return AVERROR(ENOMEM);
2530 if (!codec->sample_rate)
2531 codec->sample_rate = icodec->sample_rate;
2532 choose_sample_rate(ost->st, ost->enc);
2533 codec->time_base = (AVRational){ 1, codec->sample_rate };
2535 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2536 codec->sample_fmt = icodec->sample_fmt;
2537 choose_sample_fmt(ost->st, ost->enc);
2539 if (ost->audio_channels_mapped) {
2540 /* the requested output channel is set to the number of
2541 * -map_channel only if no -ac are specified */
2542 if (!codec->channels) {
2543 codec->channels = ost->audio_channels_mapped;
2544 codec->channel_layout = av_get_default_channel_layout(codec->channels);
2545 if (!codec->channel_layout) {
2546 av_log(NULL, AV_LOG_FATAL, "Unable to find an appropriate channel layout for requested number of channel\n");
2550 /* fill unused channel mapping with -1 (which means a muted
2551 * channel in case the number of output channels is bigger
2552 * than the number of mapped channel) */
2553 for (j = ost->audio_channels_mapped; j < FF_ARRAY_ELEMS(ost->audio_channels_map); j++)
2554 ost->audio_channels_map[j] = -1;
2555 } else if (!codec->channels) {
2556 codec->channels = icodec->channels;
2557 codec->channel_layout = icodec->channel_layout;
2559 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2560 codec->channel_layout = 0;
2562 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2563 ost->audio_resample |= codec->sample_fmt != icodec->sample_fmt
2564 || codec->channel_layout != icodec->channel_layout;
2565 icodec->request_channels = codec->channels;
2566 ost->resample_sample_fmt = icodec->sample_fmt;
2567 ost->resample_sample_rate = icodec->sample_rate;
2568 ost->resample_channels = icodec->channels;
2570 case AVMEDIA_TYPE_VIDEO:
2571 if (codec->pix_fmt == PIX_FMT_NONE)
2572 codec->pix_fmt = icodec->pix_fmt;
2573 choose_pixel_fmt(ost->st, ost->enc);
2575 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2576 av_log(NULL, AV_LOG_FATAL, "Video pixel format is unknown, stream cannot be encoded\n");
2580 if (!codec->width || !codec->height) {
2581 codec->width = icodec->width;
2582 codec->height = icodec->height;
2585 ost->video_resample = codec->width != icodec->width ||
2586 codec->height != icodec->height ||
2587 codec->pix_fmt != icodec->pix_fmt;
2588 if (ost->video_resample) {
2589 codec->bits_per_raw_sample = frame_bits_per_raw_sample;
2592 ost->resample_height = icodec->height;
2593 ost->resample_width = icodec->width;
2594 ost->resample_pix_fmt = icodec->pix_fmt;
2596 if (!ost->frame_rate.num)
2597 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational) { 25, 1 };
2598 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
2599 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2600 ost->frame_rate = ost->enc->supported_framerates[idx];
2602 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2603 if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
2604 && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
2605 av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
2606 "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
2608 for (j = 0; j < ost->forced_kf_count; j++)
2609 ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
2614 if (configure_video_filters(ist, ost)) {
2615 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
2620 case AVMEDIA_TYPE_SUBTITLE:
2621 codec->time_base = (AVRational){1, 1000};
2628 if (codec->codec_id != CODEC_ID_H264 &&
2629 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2630 char logfilename[1024];
2633 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2634 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2636 if (codec->flags & CODEC_FLAG_PASS2) {
2638 size_t logbuffer_size;
2639 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2640 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
2644 codec->stats_in = logbuffer;
2646 if (codec->flags & CODEC_FLAG_PASS1) {
2647 f = fopen(logfilename, "wb");
2649 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
2650 logfilename, strerror(errno));
2659 /* open each encoder */
2660 for (i = 0; i < nb_output_streams; i++) {
2661 ost = &output_streams[i];
2662 if (ost->encoding_needed) {
2663 AVCodec *codec = ost->enc;
2664 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2666 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
2667 avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2668 ret = AVERROR(EINVAL);
2671 if (dec->subtitle_header) {
2672 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2673 if (!ost->st->codec->subtitle_header) {
2674 ret = AVERROR(ENOMEM);
2677 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2678 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2680 if (!av_dict_get(ost->opts, "threads", NULL, 0))
2681 av_dict_set(&ost->opts, "threads", "auto", 0);
2682 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2683 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2684 ost->file_index, ost->index);
2685 ret = AVERROR(EINVAL);
2688 assert_codec_experimental(ost->st->codec, 1);
2689 assert_avoptions(ost->opts);
2690 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2691 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2692 " It takes bits/s as argument, not kbits/s\n");
2693 extra_size += ost->st->codec->extradata_size;
2695 if (ost->st->codec->me_threshold)
2696 input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
2700 /* init input streams */
2701 for (i = 0; i < nb_input_streams; i++)
2702 if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2705 /* discard unused programs */
2706 for (i = 0; i < nb_input_files; i++) {
2707 InputFile *ifile = &input_files[i];
2708 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2709 AVProgram *p = ifile->ctx->programs[j];
2710 int discard = AVDISCARD_ALL;
2712 for (k = 0; k < p->nb_stream_indexes; k++)
2713 if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
2714 discard = AVDISCARD_DEFAULT;
2717 p->discard = discard;
2721 /* open files and write file headers */
2722 for (i = 0; i < nb_output_files; i++) {
2723 oc = output_files[i].ctx;
2724 oc->interrupt_callback = int_cb;
2725 if (avformat_write_header(oc, &output_files[i].opts) < 0) {
2726 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2727 ret = AVERROR(EINVAL);
2730 // assert_avoptions(output_files[i].opts);
2731 if (strcmp(oc->oformat->name, "rtp")) {
2737 /* dump the file output parameters - cannot be done before in case
2739 for (i = 0; i < nb_output_files; i++) {
2740 av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2743 /* dump the stream mapping */
2744 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2745 for (i = 0; i < nb_output_streams; i++) {
2746 ost = &output_streams[i];
2748 if (ost->attachment_filename) {
2749 /* an attached file */
2750 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2751 ost->attachment_filename, ost->file_index, ost->index);
2754 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2755 input_streams[ost->source_index].file_index,
2756 input_streams[ost->source_index].st->index,
2759 if (ost->audio_channels_mapped) {
2760 av_log(NULL, AV_LOG_INFO, " [ch:");
2761 for (j = 0; j < ost->audio_channels_mapped; j++)
2762 if (ost->audio_channels_map[j] == -1)
2763 av_log(NULL, AV_LOG_INFO, " M");
2765 av_log(NULL, AV_LOG_INFO, " %d", ost->audio_channels_map[j]);
2766 av_log(NULL, AV_LOG_INFO, "]");
2768 if (ost->sync_ist != &input_streams[ost->source_index])
2769 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2770 ost->sync_ist->file_index,
2771 ost->sync_ist->st->index);
2772 if (ost->stream_copy)
2773 av_log(NULL, AV_LOG_INFO, " (copy)");
2775 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ?
2776 input_streams[ost->source_index].dec->name : "?",
2777 ost->enc ? ost->enc->name : "?");
2778 av_log(NULL, AV_LOG_INFO, "\n");
2782 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2787 print_sdp(output_files, nb_output_files);
2794 * The following code is the main loop of the file converter
2796 static int transcode(OutputFile *output_files, int nb_output_files,
2797 InputFile *input_files, int nb_input_files)
2800 AVFormatContext *is, *os;
2804 int no_packet_count = 0;
2805 int64_t timer_start;
2808 if (!(no_packet = av_mallocz(nb_input_files)))
2811 ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2816 av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
2819 timer_start = av_gettime();
2821 for (; received_sigterm == 0;) {
2822 int file_index, ist_index;
2826 int64_t cur_time= av_gettime();
2828 ipts_min = INT64_MAX;
2830 /* if 'q' pressed, exits */
2832 static int64_t last_time;
2833 if (received_nb_signals)
2835 /* read_key() returns 0 on EOF */
2836 if(cur_time - last_time >= 100000 && !run_as_daemon){
2838 last_time = cur_time;
2843 if (key == '+') av_log_set_level(av_log_get_level()+10);
2844 if (key == '-') av_log_set_level(av_log_get_level()-10);
2845 if (key == 's') qp_hist ^= 1;
2848 do_hex_dump = do_pkt_dump = 0;
2849 } else if(do_pkt_dump){
2853 av_log_set_level(AV_LOG_DEBUG);
2856 if (key == 'c' || key == 'C'){
2857 char buf[4096], target[64], command[256], arg[256] = {0};
2860 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2862 while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
2867 (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
2868 av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
2869 target, time, command, arg);
2870 for (i = 0; i < nb_output_streams; i++) {
2871 ost = &output_streams[i];
2874 ret = avfilter_graph_send_command(ost->graph, target, command, arg, buf, sizeof(buf),
2875 key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2876 fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
2878 ret = avfilter_graph_queue_command(ost->graph, target, command, arg, 0, time);
2883 av_log(NULL, AV_LOG_ERROR,
2884 "Parse error, at least 3 arguments were expected, "
2885 "only %d given in string '%s'\n", n, buf);
2889 if (key == 'd' || key == 'D'){
2892 debug = input_streams[0].st->codec->debug<<1;
2893 if(!debug) debug = 1;
2894 while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2897 if(scanf("%d", &debug)!=1)
2898 fprintf(stderr,"error parsing debug value\n");
2899 for(i=0;i<nb_input_streams;i++) {
2900 input_streams[i].st->codec->debug = debug;
2902 for(i=0;i<nb_output_streams;i++) {
2903 ost = &output_streams[i];
2904 ost->st->codec->debug = debug;
2906 if(debug) av_log_set_level(AV_LOG_DEBUG);
2907 fprintf(stderr,"debug=%d\n", debug);
2910 fprintf(stderr, "key function\n"
2911 "? show this help\n"
2912 "+ increase verbosity\n"
2913 "- decrease verbosity\n"
2914 "c Send command to filtergraph\n"
2915 "D cycle through available debug modes\n"
2916 "h dump packets/hex press to cycle through the 3 states\n"
2918 "s Show QP histogram\n"
2923 /* select the stream that we must read now by looking at the
2924 smallest output pts */
2926 for (i = 0; i < nb_output_streams; i++) {
2930 ost = &output_streams[i];
2931 of = &output_files[ost->file_index];
2932 os = output_files[ost->file_index].ctx;
2933 ist = &input_streams[ost->source_index];
2934 if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2935 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2937 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2939 if (!input_files[ist->file_index].eof_reached) {
2940 if (ipts < ipts_min) {
2943 file_index = ist->file_index;
2945 if (opts < opts_min) {
2947 if (!input_sync) file_index = ist->file_index;
2950 if (ost->frame_number >= ost->max_frames) {
2952 for (j = 0; j < of->ctx->nb_streams; j++)
2953 output_streams[of->ost_index + j].is_past_recording_time = 1;
2957 /* if none, if is finished */
2958 if (file_index < 0) {
2959 if (no_packet_count) {
2960 no_packet_count = 0;
2961 memset(no_packet, 0, nb_input_files);
2968 /* read a frame from it and output it in the fifo */
2969 is = input_files[file_index].ctx;
2970 ret = av_read_frame(is, &pkt);
2971 if (ret == AVERROR(EAGAIN)) {
2972 no_packet[file_index] = 1;
2977 input_files[file_index].eof_reached = 1;
2984 no_packet_count = 0;
2985 memset(no_packet, 0, nb_input_files);
2988 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2989 is->streams[pkt.stream_index]);
2991 /* the following test is needed in case new streams appear
2992 dynamically in stream : we ignore them */
2993 if (pkt.stream_index >= input_files[file_index].nb_streams)
2994 goto discard_packet;
2995 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2996 ist = &input_streams[ist_index];
2998 goto discard_packet;
3000 if (pkt.dts != AV_NOPTS_VALUE)
3001 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3002 if (pkt.pts != AV_NOPTS_VALUE)
3003 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
3005 if (pkt.pts != AV_NOPTS_VALUE)
3006 pkt.pts *= ist->ts_scale;
3007 if (pkt.dts != AV_NOPTS_VALUE)
3008 pkt.dts *= ist->ts_scale;
3010 //fprintf(stderr, "next:%"PRId64" dts:%"PRId64"/%"PRId64" off:%"PRId64" %d\n",
3012 // ist->dts, av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q), input_files[ist->file_index].ts_offset,
3013 // ist->st->codec->codec_type);
3014 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE && !copy_ts) {
3015 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
3016 int64_t delta = pkt_dts - ist->next_dts;
3017 if (is->iformat->flags & AVFMT_TS_DISCONT) {
3018 if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
3019 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
3020 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
3021 pkt_dts+1<ist->pts){
3022 input_files[ist->file_index].ts_offset -= delta;
3023 av_log(NULL, AV_LOG_DEBUG,
3024 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
3025 delta, input_files[ist->file_index].ts_offset);
3026 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3027 if (pkt.pts != AV_NOPTS_VALUE)
3028 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
3031 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3032 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
3033 pkt_dts+1<ist->pts){
3034 av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid droping\n", pkt.dts, ist->next_dts, pkt.stream_index);
3035 pkt.dts = AV_NOPTS_VALUE;
3037 if (pkt.pts != AV_NOPTS_VALUE){
3038 int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
3039 delta = pkt_pts - ist->next_dts;
3040 if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
3041 (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)) {
3042 av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid droping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
3043 pkt.pts = AV_NOPTS_VALUE;
3049 // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
3050 if (output_packet(ist, output_streams, nb_output_streams, &pkt) < 0) {
3052 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
3053 ist->file_index, ist->st->index);
3056 av_free_packet(&pkt);
3061 av_free_packet(&pkt);
3063 /* dump report by using the output first video and audio streams */
3064 print_report(output_files, output_streams, nb_output_streams, 0, timer_start, cur_time);
3067 /* at the end of stream, we must flush the decoder buffers */
3068 for (i = 0; i < nb_input_streams; i++) {
3069 ist = &input_streams[i];
3070 if (ist->decoding_needed) {
3071 output_packet(ist, output_streams, nb_output_streams, NULL);
3074 flush_encoders(output_streams, nb_output_streams);
3078 /* write the trailer if needed and close file */
3079 for (i = 0; i < nb_output_files; i++) {
3080 os = output_files[i].ctx;
3081 av_write_trailer(os);
3084 /* dump report by using the first video and audio streams */
3085 print_report(output_files, output_streams, nb_output_streams, 1, timer_start, av_gettime());
3087 /* close each encoder */
3088 for (i = 0; i < nb_output_streams; i++) {
3089 ost = &output_streams[i];
3090 if (ost->encoding_needed) {
3091 av_freep(&ost->st->codec->stats_in);
3092 avcodec_close(ost->st->codec);
3095 avfilter_graph_free(&ost->graph);
3099 /* close each decoder */
3100 for (i = 0; i < nb_input_streams; i++) {
3101 ist = &input_streams[i];
3102 if (ist->decoding_needed) {
3103 avcodec_close(ist->st->codec);
3111 av_freep(&no_packet);
3113 if (output_streams) {
3114 for (i = 0; i < nb_output_streams; i++) {
3115 ost = &output_streams[i];
3117 if (ost->stream_copy)
3118 av_freep(&ost->st->codec->extradata);
3120 fclose(ost->logfile);
3121 ost->logfile = NULL;
3123 av_fifo_free(ost->fifo); /* works even if fifo is not
3124 initialized but set to zero */
3125 av_freep(&ost->st->codec->subtitle_header);
3126 av_free(ost->resample_frame.data[0]);
3127 av_free(ost->forced_kf_pts);
3128 if (ost->video_resample)
3129 sws_freeContext(ost->img_resample_ctx);
3130 swr_free(&ost->swr);
3131 av_dict_free(&ost->opts);
3138 static int opt_frame_crop(const char *opt, const char *arg)
3140 av_log(NULL, AV_LOG_FATAL, "Option '%s' has been removed, use the crop filter instead\n", opt);
3141 return AVERROR(EINVAL);
3144 static int opt_pad(const char *opt, const char *arg)
3146 av_log(NULL, AV_LOG_FATAL, "Option '%s' has been removed, use the pad filter instead\n", opt);
3150 static int opt_video_channel(const char *opt, const char *arg)
3152 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
3153 return opt_default("channel", arg);
3156 static int opt_video_standard(const char *opt, const char *arg)
3158 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
3159 return opt_default("standard", arg);
3162 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
3164 audio_codec_name = arg;
3165 return parse_option(o, "codec:a", arg, options);
3168 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
3170 video_codec_name = arg;
3171 return parse_option(o, "codec:v", arg, options);
3174 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
3176 subtitle_codec_name = arg;
3177 return parse_option(o, "codec:s", arg, options);
3180 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
3182 return parse_option(o, "codec:d", arg, options);
3185 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
3187 StreamMap *m = NULL;
3188 int i, negative = 0, file_idx;
3189 int sync_file_idx = -1, sync_stream_idx = 0;
3197 map = av_strdup(arg);
3199 /* parse sync stream first, just pick first matching stream */
3200 if (sync = strchr(map, ',')) {
3202 sync_file_idx = strtol(sync + 1, &sync, 0);
3203 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
3204 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
3209 for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
3210 if (check_stream_specifier(input_files[sync_file_idx].ctx,
3211 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
3212 sync_stream_idx = i;
3215 if (i == input_files[sync_file_idx].nb_streams) {
3216 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
3217 "match any streams.\n", arg);
3223 file_idx = strtol(map, &p, 0);
3224 if (file_idx >= nb_input_files || file_idx < 0) {
3225 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
3229 /* disable some already defined maps */
3230 for (i = 0; i < o->nb_stream_maps; i++) {
3231 m = &o->stream_maps[i];
3232 if (file_idx == m->file_index &&
3233 check_stream_specifier(input_files[m->file_index].ctx,
3234 input_files[m->file_index].ctx->streams[m->stream_index],
3235 *p == ':' ? p + 1 : p) > 0)
3239 for (i = 0; i < input_files[file_idx].nb_streams; i++) {
3240 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
3241 *p == ':' ? p + 1 : p) <= 0)
3243 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
3244 &o->nb_stream_maps, o->nb_stream_maps + 1);
3245 m = &o->stream_maps[o->nb_stream_maps - 1];
3247 m->file_index = file_idx;
3248 m->stream_index = i;
3250 if (sync_file_idx >= 0) {
3251 m->sync_file_index = sync_file_idx;
3252 m->sync_stream_index = sync_stream_idx;
3254 m->sync_file_index = file_idx;
3255 m->sync_stream_index = i;
3260 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
3268 static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
3270 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
3271 &o->nb_attachments, o->nb_attachments + 1);
3272 o->attachments[o->nb_attachments - 1] = arg;
3276 static int opt_map_channel(OptionsContext *o, const char *opt, const char *arg)
3282 o->audio_channel_maps =
3283 grow_array(o->audio_channel_maps, sizeof(*o->audio_channel_maps),
3284 &o->nb_audio_channel_maps, o->nb_audio_channel_maps + 1);
3285 m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
3287 /* muted channel syntax */
3288 n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
3289 if ((n == 1 || n == 3) && m->channel_idx == -1) {
3290 m->file_idx = m->stream_idx = -1;
3292 m->ofile_idx = m->ostream_idx = -1;
3297 n = sscanf(arg, "%d.%d.%d:%d.%d",
3298 &m->file_idx, &m->stream_idx, &m->channel_idx,
3299 &m->ofile_idx, &m->ostream_idx);
3301 if (n != 3 && n != 5) {
3302 av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
3303 "[file.stream.channel|-1][:syncfile:syncstream]\n");
3307 if (n != 5) // only file.stream.channel specified
3308 m->ofile_idx = m->ostream_idx = -1;
3311 if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
3312 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
3316 if (m->stream_idx < 0 ||
3317 m->stream_idx >= input_files[m->file_idx].nb_streams) {
3318 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
3319 m->file_idx, m->stream_idx);
3322 st = input_files[m->file_idx].ctx->streams[m->stream_idx];
3323 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
3324 av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
3325 m->file_idx, m->stream_idx);
3328 if (m->channel_idx < 0 || m->channel_idx >= st->codec->channels) {
3329 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
3330 m->file_idx, m->stream_idx, m->channel_idx);
3337 * Parse a metadata specifier in arg.
3338 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
3339 * @param index for type c/p, chapter/program index is written here
3340 * @param stream_spec for type s, the stream specifier is written here
3342 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
3350 if (*(++arg) && *arg != ':') {
3351 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
3354 *stream_spec = *arg == ':' ? arg + 1 : "";
3358 if (*(++arg) == ':')
3359 *index = strtol(++arg, NULL, 0);
3362 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
3369 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
3371 AVDictionary **meta_in = NULL;
3372 AVDictionary **meta_out = NULL;
3374 char type_in, type_out;
3375 const char *istream_spec = NULL, *ostream_spec = NULL;
3376 int idx_in = 0, idx_out = 0;
3378 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
3379 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
3381 if (type_in == 'g' || type_out == 'g')
3382 o->metadata_global_manual = 1;
3383 if (type_in == 's' || type_out == 's')
3384 o->metadata_streams_manual = 1;
3385 if (type_in == 'c' || type_out == 'c')
3386 o->metadata_chapters_manual = 1;
3388 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3389 if ((index) < 0 || (index) >= (nb_elems)) {\
3390 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
3395 #define SET_DICT(type, meta, context, index)\
3398 meta = &context->metadata;\
3401 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
3402 meta = &context->chapters[index]->metadata;\
3405 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
3406 meta = &context->programs[index]->metadata;\
3410 SET_DICT(type_in, meta_in, ic, idx_in);
3411 SET_DICT(type_out, meta_out, oc, idx_out);
3413 /* for input streams choose first matching stream */
3414 if (type_in == 's') {
3415 for (i = 0; i < ic->nb_streams; i++) {
3416 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
3417 meta_in = &ic->streams[i]->metadata;
3423 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
3428 if (type_out == 's') {
3429 for (i = 0; i < oc->nb_streams; i++) {
3430 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
3431 meta_out = &oc->streams[i]->metadata;
3432 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3437 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
3442 static int opt_recording_timestamp(OptionsContext *o, const char *opt, const char *arg)
3445 int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
3446 struct tm time = *gmtime((time_t*)&recording_timestamp);
3447 strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
3448 parse_option(o, "metadata", buf, options);
3450 av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
3451 "tag instead.\n", opt);
3455 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
3457 const char *codec_string = encoder ? "encoder" : "decoder";
3461 avcodec_find_encoder_by_name(name) :
3462 avcodec_find_decoder_by_name(name);
3464 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
3467 if (codec->type != type) {
3468 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
3474 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
3476 char *codec_name = NULL;
3478 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
3480 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
3481 st->codec->codec_id = codec->id;
3484 return avcodec_find_decoder(st->codec->codec_id);
3488 * Add all the streams from the given input file to the global
3489 * list of input streams.
3491 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
3494 char *next, *codec_tag = NULL;
3496 for (i = 0; i < ic->nb_streams; i++) {
3497 AVStream *st = ic->streams[i];
3498 AVCodecContext *dec = st->codec;
3501 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3502 ist = &input_streams[nb_input_streams - 1];
3504 ist->file_index = nb_input_files;
3506 ist->opts = filter_codec_opts(codec_opts, choose_decoder(o, ic, st), ic, st);
3508 ist->ts_scale = 1.0;
3509 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
3511 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
3513 uint32_t tag = strtol(codec_tag, &next, 0);
3515 tag = AV_RL32(codec_tag);
3516 st->codec->codec_tag = tag;
3519 ist->dec = choose_decoder(o, ic, st);
3521 switch (dec->codec_type) {
3522 case AVMEDIA_TYPE_AUDIO:
3524 ist->dec = avcodec_find_decoder(dec->codec_id);
3525 if (o->audio_disable)
3526 st->discard = AVDISCARD_ALL;
3528 case AVMEDIA_TYPE_VIDEO:
3530 ist->dec = avcodec_find_decoder(dec->codec_id);
3532 dec->flags |= CODEC_FLAG_EMU_EDGE;
3535 if (o->video_disable)
3536 st->discard = AVDISCARD_ALL;
3537 else if (video_discard)
3538 st->discard = video_discard;
3540 case AVMEDIA_TYPE_DATA:
3541 if (o->data_disable)
3542 st->discard= AVDISCARD_ALL;
3544 case AVMEDIA_TYPE_SUBTITLE:
3546 ist->dec = avcodec_find_decoder(dec->codec_id);
3547 if(o->subtitle_disable)
3548 st->discard = AVDISCARD_ALL;
3550 case AVMEDIA_TYPE_ATTACHMENT:
3551 case AVMEDIA_TYPE_UNKNOWN:
3559 static void assert_file_overwrite(const char *filename)
3561 if ((!file_overwrite || no_file_overwrite) &&
3562 (strchr(filename, ':') == NULL || filename[1] == ':' ||
3563 av_strstart(filename, "file:", NULL))) {
3564 if (avio_check(filename, 0) == 0) {
3565 if (!using_stdin && (!no_file_overwrite || file_overwrite)) {
3566 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3569 signal(SIGINT, SIG_DFL);
3570 if (!read_yesno()) {
3571 av_log(0, AV_LOG_FATAL, "Not overwriting - exiting\n");
3577 av_log(0, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
3584 static void dump_attachment(AVStream *st, const char *filename)
3587 AVIOContext *out = NULL;
3588 AVDictionaryEntry *e;
3590 if (!st->codec->extradata_size) {
3591 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
3592 nb_input_files - 1, st->index);
3595 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
3596 filename = e->value;
3598 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
3599 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
3603 assert_file_overwrite(filename);
3605 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
3606 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
3611 avio_write(out, st->codec->extradata, st->codec->extradata_size);
3616 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
3618 AVFormatContext *ic;
3619 AVInputFormat *file_iformat = NULL;
3623 AVDictionary **opts;
3624 int orig_nb_streams; // number of streams before avformat_find_stream_info
3627 if (!(file_iformat = av_find_input_format(o->format))) {
3628 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
3633 if (!strcmp(filename, "-"))
3636 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3637 !strcmp(filename, "/dev/stdin");
3639 /* get default parameters from command line */
3640 ic = avformat_alloc_context();
3642 print_error(filename, AVERROR(ENOMEM));
3645 if (o->nb_audio_sample_rate) {
3646 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
3647 av_dict_set(&format_opts, "sample_rate", buf, 0);
3649 if (o->nb_audio_channels) {
3650 snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
3651 av_dict_set(&format_opts, "channels", buf, 0);
3653 if (o->nb_frame_rates) {
3654 av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
3656 if (o->nb_frame_sizes) {
3657 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
3659 if (o->nb_frame_pix_fmts)
3660 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
3662 ic->video_codec_id = video_codec_name ?
3663 find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0)->id : CODEC_ID_NONE;
3664 ic->audio_codec_id = audio_codec_name ?
3665 find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0)->id : CODEC_ID_NONE;
3666 ic->subtitle_codec_id= subtitle_codec_name ?
3667 find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : CODEC_ID_NONE;
3668 ic->flags |= AVFMT_FLAG_NONBLOCK;
3669 ic->interrupt_callback = int_cb;
3671 /* open the input file with generic avformat function */
3672 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3674 print_error(filename, err);
3677 assert_avoptions(format_opts);
3679 /* apply forced codec ids */
3680 for (i = 0; i < ic->nb_streams; i++)
3681 choose_decoder(o, ic, ic->streams[i]);
3683 /* Set AVCodecContext options for avformat_find_stream_info */
3684 opts = setup_find_stream_info_opts(ic, codec_opts);
3685 orig_nb_streams = ic->nb_streams;
3687 /* If not enough info to get the stream parameters, we decode the
3688 first frames to get it. (used in mpeg case for example) */
3689 ret = avformat_find_stream_info(ic, opts);
3691 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
3692 avformat_close_input(&ic);
3696 timestamp = o->start_time;
3697 /* add the stream start time */
3698 if (ic->start_time != AV_NOPTS_VALUE)
3699 timestamp += ic->start_time;
3701 /* if seeking requested, we execute it */
3702 if (o->start_time != 0) {
3703 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3705 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
3706 filename, (double)timestamp / AV_TIME_BASE);
3710 /* update the current parameters so that they match the one of the input stream */
3711 add_input_streams(o, ic);
3713 /* dump the file content */
3714 av_dump_format(ic, nb_input_files, filename, 0);
3716 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3717 input_files[nb_input_files - 1].ctx = ic;
3718 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3719 input_files[nb_input_files - 1].ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3720 input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3721 input_files[nb_input_files - 1].rate_emu = o->rate_emu;
3723 for (i = 0; i < o->nb_dump_attachment; i++) {
3726 for (j = 0; j < ic->nb_streams; j++) {
3727 AVStream *st = ic->streams[j];
3729 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
3730 dump_attachment(st, o->dump_attachment[i].u.str);
3734 for (i = 0; i < orig_nb_streams; i++)
3735 av_dict_free(&opts[i]);
3738 reset_options(o, 1);
3742 static void parse_forced_key_frames(char *kf, OutputStream *ost)
3747 for (p = kf; *p; p++)
3750 ost->forced_kf_count = n;
3751 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3752 if (!ost->forced_kf_pts) {
3753 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3756 for (i = 0; i < n; i++) {
3757 p = i ? strchr(p, ',') + 1 : kf;
3758 ost->forced_kf_pts[i] = parse_time_or_die("force_key_frames", p, 1);
3762 static uint8_t *get_line(AVIOContext *s)
3768 if (avio_open_dyn_buf(&line) < 0) {
3769 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
3773 while ((c = avio_r8(s)) && c != '\n')
3776 avio_close_dyn_buf(line, &buf);
3781 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
3784 char filename[1000];
3785 const char *base[3] = { getenv("AVCONV_DATADIR"),
3790 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
3794 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
3795 i != 1 ? "" : "/.avconv", codec_name, preset_name);
3796 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3799 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
3800 i != 1 ? "" : "/.avconv", preset_name);
3801 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
3807 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
3809 char *codec_name = NULL;
3811 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
3813 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
3814 NULL, ost->st->codec->codec_type);
3815 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
3816 } else if (!strcmp(codec_name, "copy"))
3817 ost->stream_copy = 1;
3819 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
3820 ost->st->codec->codec_id = ost->enc->id;
3824 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
3827 AVStream *st = avformat_new_stream(oc, NULL);
3828 int idx = oc->nb_streams - 1, ret = 0;
3829 char *bsf = NULL, *next, *codec_tag = NULL;
3830 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
3832 char *buf = NULL, *arg = NULL, *preset = NULL;
3833 AVIOContext *s = NULL;
3836 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
3840 if (oc->nb_streams - 1 < o->nb_streamid_map)
3841 st->id = o->streamid_map[oc->nb_streams - 1];
3843 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3844 nb_output_streams + 1);
3845 ost = &output_streams[nb_output_streams - 1];
3846 ost->file_index = nb_output_files;
3849 st->codec->codec_type = type;
3850 choose_encoder(o, oc, ost);
3852 ost->opts = filter_codec_opts(codec_opts, ost->enc, oc, st);
3855 avcodec_get_context_defaults3(st->codec, ost->enc);
3856 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3858 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
3859 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
3862 if (!buf[0] || buf[0] == '#') {
3866 if (!(arg = strchr(buf, '='))) {
3867 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
3871 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
3873 } while (!s->eof_reached);
3877 av_log(NULL, AV_LOG_FATAL,
3878 "Preset %s specified for stream %d:%d, but could not be opened.\n",
3879 preset, ost->file_index, ost->index);
3883 ost->max_frames = INT64_MAX;
3884 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
3886 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
3888 if (next = strchr(bsf, ','))
3890 if (!(bsfc = av_bitstream_filter_init(bsf))) {
3891 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
3895 bsfc_prev->next = bsfc;
3897 ost->bitstream_filters = bsfc;
3903 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
3905 uint32_t tag = strtol(codec_tag, &next, 0);
3907 tag = AV_RL32(codec_tag);
3908 st->codec->codec_tag = tag;
3911 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
3912 if (qscale >= 0 || same_quant) {
3913 st->codec->flags |= CODEC_FLAG_QSCALE;
3914 st->codec->global_quality = FF_QP2LAMBDA * qscale;
3917 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
3918 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
3920 av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
3924 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3927 const char *p = str;
3934 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3941 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3945 AVCodecContext *video_enc;
3947 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3949 video_enc = st->codec;
3951 if (!ost->stream_copy) {
3952 const char *p = NULL;
3953 char *forced_key_frames = NULL, *frame_rate = NULL, *frame_size = NULL;
3954 char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
3955 char *intra_matrix = NULL, *inter_matrix = NULL, *filters = NULL;
3958 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
3959 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
3960 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
3964 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
3965 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
3966 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
3970 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
3971 if (frame_aspect_ratio) {
3973 if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
3974 q.num <= 0 || q.den <= 0) {
3975 av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
3978 ost->frame_aspect_ratio = av_q2d(q);
3981 video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3982 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
3983 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
3984 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
3987 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3990 video_enc->gop_size = 0;
3991 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
3993 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
3994 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
3997 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
3999 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
4001 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
4002 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
4005 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
4008 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
4009 for (i = 0; p; i++) {
4011 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
4013 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
4016 /* FIXME realloc failure */
4017 video_enc->rc_override =
4018 av_realloc(video_enc->rc_override,
4019 sizeof(RcOverride) * (i + 1));
4020 video_enc->rc_override[i].start_frame = start;
4021 video_enc->rc_override[i].end_frame = end;
4023 video_enc->rc_override[i].qscale = q;
4024 video_enc->rc_override[i].quality_factor = 1.0;
4027 video_enc->rc_override[i].qscale = 0;
4028 video_enc->rc_override[i].quality_factor = -q/100.0;
4033 video_enc->rc_override_count = i;
4034 if (!video_enc->rc_initial_buffer_occupancy)
4035 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size * 3 / 4;
4036 video_enc->intra_dc_precision = intra_dc_precision - 8;
4039 video_enc->flags|= CODEC_FLAG_PSNR;
4044 video_enc->flags |= CODEC_FLAG_PASS1;
4047 video_enc->flags |= CODEC_FLAG_PASS2;
4051 MATCH_PER_STREAM_OPT(forced_key_frames, str, forced_key_frames, oc, st);
4052 if (forced_key_frames)
4053 parse_forced_key_frames(forced_key_frames, ost);
4055 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
4057 ost->top_field_first = -1;
4058 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
4061 MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
4063 ost->avfilter = av_strdup(filters);
4066 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
4072 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
4077 AVCodecContext *audio_enc;
4079 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
4082 audio_enc = st->codec;
4083 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
4085 if (!ost->stream_copy) {
4086 char *sample_fmt = NULL;
4088 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
4090 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
4092 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
4093 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
4097 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
4099 ost->rematrix_volume=1.0;
4100 MATCH_PER_STREAM_OPT(rematrix_volume, f, ost->rematrix_volume, oc, st);
4103 /* check for channel mapping for this audio stream */
4104 for (n = 0; n < o->nb_audio_channel_maps; n++) {
4105 AudioChannelMap *map = &o->audio_channel_maps[n];
4106 InputStream *ist = &input_streams[ost->source_index];
4107 if ((map->channel_idx == -1 || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) &&
4108 (map->ofile_idx == -1 || ost->file_index == map->ofile_idx) &&
4109 (map->ostream_idx == -1 || ost->st->index == map->ostream_idx)) {
4110 if (ost->audio_channels_mapped < FF_ARRAY_ELEMS(ost->audio_channels_map))
4111 ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
4113 av_log(NULL, AV_LOG_FATAL, "Max channel mapping for output %d.%d reached\n",
4114 ost->file_index, ost->st->index);
4121 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
4125 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
4126 if (!ost->stream_copy) {
4127 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
4134 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
4136 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
4137 ost->stream_copy = 1;
4141 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
4145 AVCodecContext *subtitle_enc;
4147 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
4149 subtitle_enc = st->codec;
4151 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
4156 /* arg format is "output-stream-index:streamid-value". */
4157 static int opt_streamid(OptionsContext *o, const char *opt, const char *arg)
4163 av_strlcpy(idx_str, arg, sizeof(idx_str));
4164 p = strchr(idx_str, ':');
4166 av_log(NULL, AV_LOG_FATAL,
4167 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
4172 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
4173 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
4174 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
4178 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
4180 AVFormatContext *is = ifile->ctx;
4181 AVFormatContext *os = ofile->ctx;
4184 for (i = 0; i < is->nb_chapters; i++) {
4185 AVChapter *in_ch = is->chapters[i], *out_ch;
4186 int64_t ts_off = av_rescale_q(ofile->start_time - ifile->ts_offset,
4187 AV_TIME_BASE_Q, in_ch->time_base);
4188 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
4189 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
4192 if (in_ch->end < ts_off)
4194 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
4197 out_ch = av_mallocz(sizeof(AVChapter));
4199 return AVERROR(ENOMEM);
4201 out_ch->id = in_ch->id;
4202 out_ch->time_base = in_ch->time_base;
4203 out_ch->start = FFMAX(0, in_ch->start - ts_off);
4204 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
4207 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
4210 os->chapters = av_realloc_f(os->chapters, os->nb_chapters, sizeof(AVChapter));
4212 return AVERROR(ENOMEM);
4213 os->chapters[os->nb_chapters - 1] = out_ch;
4218 static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
4221 AVFormatContext *ic = avformat_alloc_context();
4223 ic->interrupt_callback = int_cb;
4224 err = avformat_open_input(&ic, filename, NULL, NULL);
4227 /* copy stream format */
4228 for(i=0;i<ic->nb_streams;i++) {
4232 AVCodecContext *avctx;
4234 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
4235 ost = new_output_stream(o, s, codec->type);
4240 // FIXME: a more elegant solution is needed
4241 memcpy(st, ic->streams[i], sizeof(AVStream));
4242 st->info = av_malloc(sizeof(*st->info));
4243 memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
4245 avcodec_copy_context(st->codec, ic->streams[i]->codec);
4247 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
4248 choose_sample_fmt(st, codec);
4249 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
4250 choose_pixel_fmt(st, codec);
4253 avformat_close_input(&ic);
4257 static void opt_output_file(void *optctx, const char *filename)
4259 OptionsContext *o = optctx;
4260 AVFormatContext *oc;
4262 AVOutputFormat *file_oformat;
4266 if (!strcmp(filename, "-"))
4269 err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
4271 print_error(filename, err);
4274 file_oformat= oc->oformat;
4275 oc->interrupt_callback = int_cb;
4277 if (!strcmp(file_oformat->name, "ffm") &&
4278 av_strstart(filename, "http:", NULL)) {
4280 /* special case for files sent to ffserver: we get the stream
4281 parameters from ffserver */
4282 int err = read_ffserver_streams(o, oc, filename);
4284 print_error(filename, err);
4287 for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
4288 ost = &output_streams[j];
4289 for (i = 0; i < nb_input_streams; i++) {
4290 ist = &input_streams[i];
4291 if(ist->st->codec->codec_type == ost->st->codec->codec_type){
4293 ost->source_index= i;
4299 av_log(NULL, AV_LOG_FATAL, "Missing %s stream which is required by this ffm\n", av_get_media_type_string(ost->st->codec->codec_type));
4303 } else if (!o->nb_stream_maps) {
4304 /* pick the "best" stream of each type */
4305 #define NEW_STREAM(type, index)\
4307 ost = new_ ## type ## _stream(o, oc);\
4308 ost->source_index = index;\
4309 ost->sync_ist = &input_streams[index];\
4310 input_streams[index].discard = 0;\
4313 /* video: highest resolution */
4314 if (!o->video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
4315 int area = 0, idx = -1;
4316 for (i = 0; i < nb_input_streams; i++) {
4317 ist = &input_streams[i];
4318 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
4319 ist->st->codec->width * ist->st->codec->height > area) {
4320 area = ist->st->codec->width * ist->st->codec->height;
4324 NEW_STREAM(video, idx);
4327 /* audio: most channels */
4328 if (!o->audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
4329 int channels = 0, idx = -1;
4330 for (i = 0; i < nb_input_streams; i++) {
4331 ist = &input_streams[i];
4332 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
4333 ist->st->codec->channels > channels) {
4334 channels = ist->st->codec->channels;
4338 NEW_STREAM(audio, idx);
4341 /* subtitles: pick first */
4342 if (!o->subtitle_disable && (oc->oformat->subtitle_codec != CODEC_ID_NONE || subtitle_codec_name)) {
4343 for (i = 0; i < nb_input_streams; i++)
4344 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {