mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
avconv: factor out initializing stream parameters for streamcopy
This commit is contained in:
Anton Khirnov
parent
5fa255b65c
commit
6ed0f70f97
209
avconv.c
209
avconv.c
@ -1663,6 +1663,111 @@ static int init_output_bsfs(OutputStream *ost)
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return 0;
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}
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static int init_output_stream_streamcopy(OutputStream *ost)
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{
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OutputFile *of = output_files[ost->file_index];
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InputStream *ist = get_input_stream(ost);
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AVCodecParameters *par_dst = ost->st->codecpar;
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AVCodecParameters *par_src = ist->st->codecpar;
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AVRational sar;
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int i;
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uint64_t extra_size;
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extra_size = (uint64_t)par_src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE;
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if (extra_size > INT_MAX) {
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return AVERROR(EINVAL);
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}
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ost->st->disposition = ist->st->disposition;
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/* if stream_copy is selected, no need to decode or encode */
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par_dst->codec_id = par_src->codec_id;
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par_dst->codec_type = par_src->codec_type;
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if (!par_dst->codec_tag) {
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if (!of->ctx->oformat->codec_tag ||
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av_codec_get_id (of->ctx->oformat->codec_tag, par_src->codec_tag) == par_dst->codec_id ||
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av_codec_get_tag(of->ctx->oformat->codec_tag, par_src->codec_id) <= 0)
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par_dst->codec_tag = par_src->codec_tag;
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}
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par_dst->bit_rate = par_src->bit_rate;
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par_dst->field_order = par_src->field_order;
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par_dst->chroma_location = par_src->chroma_location;
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if (par_src->extradata) {
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par_dst->extradata = av_mallocz(extra_size);
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if (!par_dst->extradata) {
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return AVERROR(ENOMEM);
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}
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memcpy(par_dst->extradata, par_src->extradata, par_src->extradata_size);
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par_dst->extradata_size = par_src->extradata_size;
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}
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ost->st->time_base = ist->st->time_base;
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if (ist->st->nb_side_data) {
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ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
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sizeof(*ist->st->side_data));
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if (!ost->st->side_data)
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return AVERROR(ENOMEM);
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for (i = 0; i < ist->st->nb_side_data; i++) {
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const AVPacketSideData *sd_src = &ist->st->side_data[i];
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AVPacketSideData *sd_dst = &ost->st->side_data[i];
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sd_dst->data = av_malloc(sd_src->size);
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if (!sd_dst->data)
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return AVERROR(ENOMEM);
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memcpy(sd_dst->data, sd_src->data, sd_src->size);
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sd_dst->size = sd_src->size;
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sd_dst->type = sd_src->type;
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ost->st->nb_side_data++;
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}
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}
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ost->parser = av_parser_init(par_dst->codec_id);
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ost->parser_avctx = avcodec_alloc_context3(NULL);
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if (!ost->parser_avctx)
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return AVERROR(ENOMEM);
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switch (par_dst->codec_type) {
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case AVMEDIA_TYPE_AUDIO:
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if (audio_volume != 256) {
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av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
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exit_program(1);
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}
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par_dst->channel_layout = par_src->channel_layout;
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par_dst->sample_rate = par_src->sample_rate;
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par_dst->channels = par_src->channels;
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par_dst->block_align = par_src->block_align;
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break;
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case AVMEDIA_TYPE_VIDEO:
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par_dst->format = par_src->format;
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par_dst->width = par_src->width;
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par_dst->height = par_src->height;
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if (ost->frame_aspect_ratio)
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sar = av_d2q(ost->frame_aspect_ratio * par_dst->height / par_dst->width, 255);
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else if (ist->st->sample_aspect_ratio.num)
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sar = ist->st->sample_aspect_ratio;
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else
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sar = par_src->sample_aspect_ratio;
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ost->st->sample_aspect_ratio = par_dst->sample_aspect_ratio = sar;
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break;
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case AVMEDIA_TYPE_SUBTITLE:
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par_dst->width = par_src->width;
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par_dst->height = par_src->height;
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break;
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case AVMEDIA_TYPE_DATA:
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case AVMEDIA_TYPE_ATTACHMENT:
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break;
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default:
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abort();
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}
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return 0;
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}
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static int init_output_stream(OutputStream *ost, char *error, int error_len)
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{
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int ret = 0;
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@ -1735,6 +1840,10 @@ static int init_output_stream(OutputStream *ost, char *error, int error_len)
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ost->st->time_base = ost->enc_ctx->time_base;
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} else if (ost->stream_copy) {
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ret = init_output_stream_streamcopy(ost);
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if (ret < 0)
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return ret;
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/*
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* FIXME: will the codec context used by the parser during streamcopy
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* This should go away with the new parser API.
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@ -1843,105 +1952,7 @@ static int transcode_init(void)
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ost->st->disposition = ist->st->disposition;
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}
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if (ost->stream_copy) {
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AVCodecParameters *par_dst = ost->st->codecpar;
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AVCodecParameters *par_src = ist->st->codecpar;
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AVRational sar;
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uint64_t extra_size;
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av_assert0(ist && !ost->filter);
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extra_size = (uint64_t)par_src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE;
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if (extra_size > INT_MAX) {
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return AVERROR(EINVAL);
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}
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/* if stream_copy is selected, no need to decode or encode */
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par_dst->codec_id = par_src->codec_id;
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par_dst->codec_type = par_src->codec_type;
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if (!par_dst->codec_tag) {
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if (!oc->oformat->codec_tag ||
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av_codec_get_id (oc->oformat->codec_tag, par_src->codec_tag) == par_dst->codec_id ||
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av_codec_get_tag(oc->oformat->codec_tag, par_src->codec_id) <= 0)
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par_dst->codec_tag = par_src->codec_tag;
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}
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par_dst->bit_rate = par_src->bit_rate;
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par_dst->field_order = par_src->field_order;
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par_dst->chroma_location = par_src->chroma_location;
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if (par_src->extradata != NULL) {
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par_dst->extradata = av_mallocz(extra_size);
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if (!par_dst->extradata) {
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return AVERROR(ENOMEM);
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}
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memcpy(par_dst->extradata, par_src->extradata,
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par_src->extradata_size);
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par_dst->extradata_size = par_src->extradata_size;
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}
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ost->st->time_base = ist->st->time_base;
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if (ist->st->nb_side_data) {
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ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
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sizeof(*ist->st->side_data));
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if (!ost->st->side_data)
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return AVERROR(ENOMEM);
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for (j = 0; j < ist->st->nb_side_data; j++) {
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const AVPacketSideData *sd_src = &ist->st->side_data[j];
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AVPacketSideData *sd_dst = &ost->st->side_data[j];
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sd_dst->data = av_malloc(sd_src->size);
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if (!sd_dst->data)
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return AVERROR(ENOMEM);
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memcpy(sd_dst->data, sd_src->data, sd_src->size);
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sd_dst->size = sd_src->size;
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sd_dst->type = sd_src->type;
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ost->st->nb_side_data++;
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}
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}
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ost->parser = av_parser_init(par_dst->codec_id);
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ost->parser_avctx = avcodec_alloc_context3(NULL);
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if (!ost->parser_avctx)
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return AVERROR(ENOMEM);
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switch (par_dst->codec_type) {
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case AVMEDIA_TYPE_AUDIO:
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if (audio_volume != 256) {
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av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
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exit_program(1);
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}
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par_dst->channel_layout = par_src->channel_layout;
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par_dst->sample_rate = par_src->sample_rate;
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par_dst->channels = par_src->channels;
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par_dst->block_align = par_src->block_align;
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break;
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case AVMEDIA_TYPE_VIDEO:
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par_dst->format = par_src->format;
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par_dst->width = par_src->width;
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par_dst->height = par_src->height;
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if (ost->frame_aspect_ratio)
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sar = av_d2q(ost->frame_aspect_ratio * par_dst->height / par_dst->width, 255);
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else if (ist->st->sample_aspect_ratio.num)
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sar = ist->st->sample_aspect_ratio;
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else
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sar = par_src->sample_aspect_ratio;
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ost->st->sample_aspect_ratio = par_dst->sample_aspect_ratio = sar;
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break;
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case AVMEDIA_TYPE_SUBTITLE:
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par_dst->width = par_src->width;
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par_dst->height = par_src->height;
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break;
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case AVMEDIA_TYPE_DATA:
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case AVMEDIA_TYPE_ATTACHMENT:
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break;
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default:
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abort();
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}
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} else {
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if (!ost->stream_copy) {
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AVCodecContext *enc_ctx = ost->enc_ctx;
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AVCodecContext *dec_ctx = NULL;
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