static int transcode_init(void) { int ret = 0, i, j, k; AVFormatContext *oc; OutputStream *ost; InputStream *ist; char error[1024] = {0}; int want_sdp = 1; for (i = 0; i < nb_filtergraphs; i++) { FilterGraph *fg = filtergraphs[i]; for (j = 0; j < fg->nb_outputs; j++) { OutputFilter *ofilter = fg->outputs[j]; if (!ofilter->ost || ofilter->ost->source_index >= 0) continue; if (fg->nb_inputs != 1) continue; for (k = nb_input_streams-1; k >= 0 ; k--) if (fg->inputs[0]->ist == input_streams[k]) break; ofilter->ost->source_index = k; } } /* init framerate emulation */ for (i = 0; i < nb_input_files; i++) { InputFile *ifile = input_files[i]; if (ifile->rate_emu) for (j = 0; j < ifile->nb_streams; j++) input_streams[j + ifile->ist_index]->start = av_gettime_relative(); } /* output stream init */ for (i = 0; i < nb_output_files; i++) { oc = output_files[i]->ctx; if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) { av_dump_format(oc, i, oc->filename, 1); av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i); return AVERROR(EINVAL); } } /* init complex filtergraphs */ for (i = 0; i < nb_filtergraphs; i++) if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0) return ret; /* for each output stream, we compute the right encoding parameters */ for (i = 0; i < nb_output_streams; i++) { AVCodecContext *enc_ctx; AVCodecContext *dec_ctx = NULL; ost = output_streams[i]; oc = output_files[ost->file_index]->ctx; ist = get_input_stream(ost); if (ost->attachment_filename) continue; enc_ctx = ost->stream_copy ? ost->st->codec : ost->enc_ctx; if (ist) { dec_ctx = ist->dec_ctx; ost->st->disposition = ist->st->disposition; enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample; enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location; } else { for (j=0; j<oc->nb_streams; j++) { AVStream *st = oc->streams[j]; if (st != ost->st && st->codec->codec_type == enc_ctx->codec_type) break; } if (j == oc->nb_streams) if (enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO || enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) ost->st->disposition = AV_DISPOSITION_DEFAULT; } if (ost->stream_copy) { AVRational sar; uint64_t extra_size; av_assert0(ist && !ost->filter); extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE; if (extra_size > INT_MAX) { return AVERROR(EINVAL); } /* if stream_copy is selected, no need to decode or encode */ enc_ctx->codec_id = dec_ctx->codec_id; enc_ctx->codec_type = dec_ctx->codec_type; if (!enc_ctx->codec_tag) { unsigned int codec_tag; if (!oc->oformat->codec_tag || av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id || !av_codec_get_tag2(oc->oformat->codec_tag, dec_ctx->codec_id, &codec_tag)) enc_ctx->codec_tag = dec_ctx->codec_tag; } enc_ctx->bit_rate = dec_ctx->bit_rate; enc_ctx->rc_max_rate = dec_ctx->rc_max_rate; enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size; enc_ctx->field_order = dec_ctx->field_order; if (dec_ctx->extradata_size) { enc_ctx->extradata = av_mallocz(extra_size); if (!enc_ctx->extradata) { return AVERROR(ENOMEM); } memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size); } enc_ctx->extradata_size= dec_ctx->extradata_size; enc_ctx->bits_per_coded_sample = dec_ctx->bits_per_coded_sample; enc_ctx->time_base = ist->st->time_base; /* * Avi is a special case here because it supports variable fps but * having the fps and timebase differe significantly adds quite some * overhead */ if(!strcmp(oc->oformat->name, "avi")) { if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate) && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base) && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(dec_ctx->time_base) && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(dec_ctx->time_base) < 1.0/500 || copy_tb==2){ enc_ctx->time_base.num = ist->st->r_frame_rate.den; enc_ctx->time_base.den = 2*ist->st->r_frame_rate.num; enc_ctx->ticks_per_frame = 2; } else if ( copy_tb<0 && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > 2*av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500 || copy_tb==0){ enc_ctx->time_base = dec_ctx->time_base; enc_ctx->time_base.num *= dec_ctx->ticks_per_frame; enc_ctx->time_base.den *= 2; enc_ctx->ticks_per_frame = 2; } } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS) && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp") && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod") && strcmp(oc->oformat->name, "f4v") ) { if( copy_tb<0 && dec_ctx->time_base.den && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500 || copy_tb==0){ enc_ctx->time_base = dec_ctx->time_base; enc_ctx->time_base.num *= dec_ctx->ticks_per_frame; } } if ( enc_ctx->codec_tag == AV_RL32("tmcd") && dec_ctx->time_base.num < dec_ctx->time_base.den && dec_ctx->time_base.num > 0 && 121LL*dec_ctx->time_base.num > dec_ctx->time_base.den) { enc_ctx->time_base = dec_ctx->time_base; } if (ist && !ost->frame_rate.num) ost->frame_rate = ist->framerate; if(ost->frame_rate.num) enc_ctx->time_base = av_inv_q(ost->frame_rate); av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den, enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX); if (ist->st->nb_side_data) { ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data, sizeof(*ist->st->side_data)); if (!ost->st->side_data) return AVERROR(ENOMEM); for (j = 0; j < ist->st->nb_side_data; j++) { const AVPacketSideData *sd_src = &ist->st->side_data[j]; AVPacketSideData *sd_dst = &ost->st->side_data[j]; sd_dst->data = av_malloc(sd_src->size); if (!sd_dst->data) return AVERROR(ENOMEM); memcpy(sd_dst->data, sd_src->data, sd_src->size); sd_dst->size = sd_src->size; sd_dst->type = sd_src->type; ost->st->nb_side_data++; } } ost->parser = av_parser_init(enc_ctx->codec_id); switch (enc_ctx->codec_type) { case AVMEDIA_TYPE_AUDIO: if (audio_volume != 256) { av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n"); exit_program(1); } enc_ctx->channel_layout = dec_ctx->channel_layout; enc_ctx->sample_rate = dec_ctx->sample_rate; enc_ctx->channels = dec_ctx->channels; enc_ctx->frame_size = dec_ctx->frame_size; enc_ctx->audio_service_type = dec_ctx->audio_service_type; enc_ctx->block_align = dec_ctx->block_align; enc_ctx->initial_padding = dec_ctx->delay; #if FF_API_AUDIOENC_DELAY enc_ctx->delay = dec_ctx->delay; #endif if((enc_ctx->block_align == 1 || enc_ctx->block_align == 1152 || enc_ctx->block_align == 576) && enc_ctx->codec_id == AV_CODEC_ID_MP3) enc_ctx->block_align= 0; if(enc_ctx->codec_id == AV_CODEC_ID_AC3) enc_ctx->block_align= 0; break; case AVMEDIA_TYPE_VIDEO: enc_ctx->pix_fmt = dec_ctx->pix_fmt; enc_ctx->width = dec_ctx->width; enc_ctx->height = dec_ctx->height; enc_ctx->has_b_frames = dec_ctx->has_b_frames; if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option sar = av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }); av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio " "with stream copy may produce invalid files\n"); } else if (ist->st->sample_aspect_ratio.num) sar = ist->st->sample_aspect_ratio; else sar = dec_ctx->sample_aspect_ratio; ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar; ost->st->avg_frame_rate = ist->st->avg_frame_rate; ost->st->r_frame_rate = ist->st->r_frame_rate; break; case AVMEDIA_TYPE_SUBTITLE: enc_ctx->width = dec_ctx->width; enc_ctx->height = dec_ctx->height; break; case AVMEDIA_TYPE_DATA: case AVMEDIA_TYPE_ATTACHMENT: break; default: abort(); } } else { if (!ost->enc) ost->enc = avcodec_find_encoder(enc_ctx->codec_id); if (!ost->enc) { /* should only happen when a default codec is not present. */ snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d", avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index); ret = AVERROR(EINVAL); goto dump_format; } if (ist) ist->decoding_needed |= DECODING_FOR_OST; ost->encoding_needed = 1; set_encoder_id(output_files[ost->file_index], ost); if (!ost->filter && (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO || enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) { FilterGraph *fg; fg = init_simple_filtergraph(ist, ost); if (configure_filtergraph(fg)) { av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n"); exit_program(1); } } if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) { if (ost->filter && !ost->frame_rate.num) ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter); if (ist && !ost->frame_rate.num) ost->frame_rate = ist->framerate; if (ist && !ost->frame_rate.num) ost->frame_rate = ist->st->r_frame_rate; if (ist && !ost->frame_rate.num) { ost->frame_rate = (AVRational){25, 1}; av_log(NULL, AV_LOG_WARNING, "No information " "about the input framerate is available. Falling " "back to a default value of 25fps for output stream #%d:%d. Use the -r option " "if you want a different framerate.\n", ost->file_index, ost->index); } // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1}; if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) { int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates); ost->frame_rate = ost->enc->supported_framerates[idx]; } // reduce frame rate for mpeg4 to be within the spec limits if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) { av_reduce(&ost->frame_rate.num, &ost->frame_rate.den, ost->frame_rate.num, ost->frame_rate.den, 65535); } } switch (enc_ctx->codec_type) { case AVMEDIA_TYPE_AUDIO: enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format; enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate; enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout; enc_ctx->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]); enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate }; break; case AVMEDIA_TYPE_VIDEO: enc_ctx->time_base = av_inv_q(ost->frame_rate); if (ost->filter && !(enc_ctx->time_base.num && enc_ctx->time_base.den)) enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base; if ( av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH && (video_sync_method == VSYNC_CFR || video_sync_method == VSYNC_VSCFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){ av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n" "Please consider specifying a lower framerate, a different muxer or -vsync 2\n"); } for (j = 0; j < ost->forced_kf_count; j++) ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j], AV_TIME_BASE_Q, enc_ctx->time_base); enc_ctx->width = ost->filter->filter->inputs[0]->w; enc_ctx->height = ost->filter->filter->inputs[0]->h; enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio = ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) : ost->filter->filter->inputs[0]->sample_aspect_ratio; if (!strncmp(ost->enc->name, "libx264", 7) && enc_ctx->pix_fmt == AV_PIX_FMT_NONE && ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P) av_log(NULL, AV_LOG_WARNING, "No pixel format specified, %s for H.264 encoding chosen.\n" "Use -pix_fmt yuv420p for compatibility with outdated media players.\n", av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format)); if (!strncmp(ost->enc->name, "mpeg2video", 10) && enc_ctx->pix_fmt == AV_PIX_FMT_NONE && ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P) av_log(NULL, AV_LOG_WARNING, "No pixel format specified, %s for MPEG-2 encoding chosen.\n" "Use -pix_fmt yuv420p for compatibility with outdated media players.\n", av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format)); enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format; ost->st->avg_frame_rate = ost->frame_rate; if (!dec_ctx || enc_ctx->width != dec_ctx->width || enc_ctx->height != dec_ctx->height || enc_ctx->pix_fmt != dec_ctx->pix_fmt) { enc_ctx->bits_per_raw_sample = frame_bits_per_raw_sample; } if (ost->forced_keyframes) { if (!strncmp(ost->forced_keyframes, "expr:", 5)) { ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5, forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL); if (ret < 0) { av_log(NULL, AV_LOG_ERROR, "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5); return ret; } ost->forced_keyframes_expr_const_values[FKF_N] = 0; ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0; ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN; ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN; } else { parse_forced_key_frames(ost->forced_keyframes, ost, ost->enc_ctx); } } break; case AVMEDIA_TYPE_SUBTITLE: enc_ctx->time_base = (AVRational){1, 1000}; if (!enc_ctx->width) { enc_ctx->width = input_streams[ost->source_index]->st->codec->width; enc_ctx->height = input_streams[ost->source_index]->st->codec->height; } break; case AVMEDIA_TYPE_DATA: break; default: abort(); break; } /* two pass mode */ if (enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) { char logfilename[1024]; FILE *f; snprintf(logfilename, sizeof(logfilename), "%s-%d.log", ost->logfile_prefix ? ost->logfile_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX, i); if (!strcmp(ost->enc->name, "libx264")) { av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE); } else { if (enc_ctx->flags & CODEC_FLAG_PASS2) { char *logbuffer; size_t logbuffer_size; if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) { av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n", logfilename); exit_program(1); } enc_ctx->stats_in = logbuffer; } if (enc_ctx->flags & CODEC_FLAG_PASS1) { f = av_fopen_utf8(logfilename, "wb"); if (!f) { av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno)); exit_program(1); } ost->logfile = f; } } } } if (ost->disposition) { static const AVOption opts[] = { { "disposition" , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" }, { "default" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DEFAULT }, .unit = "flags" }, { "dub" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DUB }, .unit = "flags" }, { "original" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_ORIGINAL }, .unit = "flags" }, { "comment" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_COMMENT }, .unit = "flags" }, { "lyrics" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_LYRICS }, .unit = "flags" }, { "karaoke" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_KARAOKE }, .unit = "flags" }, { "forced" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_FORCED }, .unit = "flags" }, { "hearing_impaired" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_HEARING_IMPAIRED }, .unit = "flags" }, { "visual_impaired" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_VISUAL_IMPAIRED }, .unit = "flags" }, { "clean_effects" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CLEAN_EFFECTS }, .unit = "flags" }, { "captions" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CAPTIONS }, .unit = "flags" }, { "descriptions" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DESCRIPTIONS }, .unit = "flags" }, { "metadata" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_METADATA }, .unit = "flags" }, { NULL }, }; static const AVClass class = { .class_name = "", .item_name = av_default_item_name, .option = opts, .version = LIBAVUTIL_VERSION_INT, }; const AVClass *pclass = &class; ret = av_opt_eval_flags(&pclass, &opts[0], ost->disposition, &ost->st->disposition); if (ret < 0) goto dump_format; } } /* open each encoder */ for (i = 0; i < nb_output_streams; i++) { ost = output_streams[i]; if (ost->encoding_needed) { AVCodec *codec = ost->enc; AVCodecContext *dec = NULL; if ((ist = get_input_stream(ost))) dec = ist->dec_ctx; if (dec && dec->subtitle_header) { /* ASS code assumes this buffer is null terminated so add extra byte. */ ost->enc_ctx->subtitle_header = av_mallocz(dec->subtitle_header_size + 1); if (!ost->enc_ctx->subtitle_header) { ret = AVERROR(ENOMEM); goto dump_format; } memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size); ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size; } if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0)) av_dict_set(&ost->encoder_opts, "threads", "auto", 0); av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0); if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) { if (ret == AVERROR_EXPERIMENTAL) abort_codec_experimental(codec, 1); snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height", ost->file_index, ost->index); goto dump_format; } if (ost->enc->type == AVMEDIA_TYPE_AUDIO && !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) av_buffersink_set_frame_size(ost->filter->filter, ost->enc_ctx->frame_size); assert_avoptions(ost->encoder_opts); if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000) av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low." " It takes bits/s as argument, not kbits/s\n"); ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx); if (ret < 0) { av_log(NULL, AV_LOG_FATAL, "Error initializing the output stream codec context.\n"); exit_program(1); } // copy timebase while removing common factors ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1}); ost->st->codec->codec= ost->enc_ctx->codec; } else { ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts); if (ret < 0) { av_log(NULL, AV_LOG_FATAL, "Error setting up codec context options.\n"); return ret; } // copy timebase while removing common factors ost->st->time_base = av_add_q(ost->st->codec->time_base, (AVRational){0, 1}); } } /* init input streams */ for (i = 0; i < nb_input_streams; i++) if ((ret = init_input_stream(i, error, sizeof(error))) < 0) { for (i = 0; i < nb_output_streams; i++) { ost = output_streams[i]; avcodec_close(ost->enc_ctx); } goto dump_format; } /* discard unused programs */ for (i = 0; i < nb_input_files; i++) { InputFile *ifile = input_files[i]; for (j = 0; j < ifile->ctx->nb_programs; j++) { AVProgram *p = ifile->ctx->programs[j]; int discard = AVDISCARD_ALL; for (k = 0; k < p->nb_stream_indexes; k++) if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) { discard = AVDISCARD_DEFAULT; break; } p->discard = discard; } } /* open files and write file headers */ for (i = 0; i < nb_output_files; i++) { oc = output_files[i]->ctx; oc->interrupt_callback = int_cb; if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) { snprintf(error, sizeof(error), "Could not write header for output file #%d " "(incorrect codec parameters ?): %s", i, av_err2str(ret)); ret = AVERROR(EINVAL); goto dump_format; } // assert_avoptions(output_files[i]->opts); if (strcmp(oc->oformat->name, "rtp")) { want_sdp = 0; } } dump_format: /* dump the file output parameters - cannot be done before in case of stream copy */ for (i = 0; i < nb_output_files; i++) { av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1); } /* dump the stream mapping */ av_log(NULL, AV_LOG_INFO, "Stream mapping:\n"); for (i = 0; i < nb_input_streams; i++) { ist = input_streams[i]; for (j = 0; j < ist->nb_filters; j++) { if (ist->filters[j]->graph->graph_desc) { av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s", ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?", ist->filters[j]->name); if (nb_filtergraphs > 1) av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index); av_log(NULL, AV_LOG_INFO, "\n"); } } } for (i = 0; i < nb_output_streams; i++) { ost = output_streams[i]; if (ost->attachment_filename) { /* an attached file */ av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n", ost->attachment_filename, ost->file_index, ost->index); continue; } if (ost->filter && ost->filter->graph->graph_desc) { /* output from a complex graph */ av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name); if (nb_filtergraphs > 1) av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index); av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index, ost->index, ost->enc ? ost->enc->name : "?"); continue; } av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d", input_streams[ost->source_index]->file_index, input_streams[ost->source_index]->st->index, ost->file_index, ost->index); if (ost->sync_ist != input_streams[ost->source_index]) av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]", ost->sync_ist->file_index, ost->sync_ist->st->index); if (ost->stream_copy) av_log(NULL, AV_LOG_INFO, " (copy)"); else { const AVCodec *in_codec = input_streams[ost->source_index]->dec; const AVCodec *out_codec = ost->enc; const char *decoder_name = "?"; const char *in_codec_name = "?"; const char *encoder_name = "?"; const char *out_codec_name = "?"; const AVCodecDescriptor *desc; if (in_codec) { decoder_name = in_codec->name; desc = avcodec_descriptor_get(in_codec->id); if (desc) in_codec_name = desc->name; if (!strcmp(decoder_name, in_codec_name)) decoder_name = "native"; } if (out_codec) { encoder_name = out_codec->name; desc = avcodec_descriptor_get(out_codec->id); if (desc) out_codec_name = desc->name; if (!strcmp(encoder_name, out_codec_name)) encoder_name = "native"; } av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))", in_codec_name, decoder_name, out_codec_name, encoder_name); } av_log(NULL, AV_LOG_INFO, "\n"); } if (ret) { av_log(NULL, AV_LOG_ERROR, "%s\n", error); return ret; } if (sdp_filename || want_sdp) { print_sdp(); } transcode_init_done = 1; return 0; }