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avfilter/src_movie: dr support

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This commit is contained in:
Paul B Mahol 2023-05-15 21:54:25 +02:00
parent d81b6cbd42
commit 3546f70410
1 changed files with 55 additions and 2 deletions
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57
libavfilter/src_movie.c
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@ -23,7 +23,6 @@
* @file
* movie video source
*
* @todo use direct rendering (no allocation of a new frame)
* @todo support a PTS correction mechanism
*/
@ -156,6 +155,56 @@ static AVStream *find_stream(void *log, AVFormatContext *avf, const char *spec)
return found;
}
static int get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
{
int linesize_align[AV_NUM_DATA_POINTERS];
AVFilterLink *outlink = frame->opaque;
int w, h, ow, oh, copy = 0;
AVFrame *new;
h = oh = frame->height;
w = ow = frame->width;
copy = frame->format != outlink->format;
switch (avctx->codec_type) {
case AVMEDIA_TYPE_VIDEO:
if (w != outlink->w || h != outlink->h)
copy |= 1;
break;
case AVMEDIA_TYPE_AUDIO:
if (outlink->sample_rate != frame->sample_rate ||
av_channel_layout_compare(&outlink->ch_layout, &frame->ch_layout))
copy |= 1;
break;
}
if (copy || !(avctx->codec->capabilities & AV_CODEC_CAP_DR1))
return avcodec_default_get_buffer2(avctx, frame, flags);
switch (avctx->codec_type) {
case AVMEDIA_TYPE_VIDEO:
avcodec_align_dimensions2(avctx, &w, &h, linesize_align);
new = ff_default_get_video_buffer(outlink, w, h);
break;
case AVMEDIA_TYPE_AUDIO:
new = ff_default_get_audio_buffer(outlink, frame->nb_samples);
break;
default:
return -1;
}
av_frame_copy_props(new, frame);
av_frame_unref(frame);
av_frame_move_ref(frame, new);
av_frame_free(&new);
frame->opaque = outlink;
frame->width = ow;
frame->height = oh;
return 0;
}
static int open_stream(AVFilterContext *ctx, MovieStream *st, int dec_threads)
{
const AVCodec *codec;
@ -171,6 +220,8 @@ static int open_stream(AVFilterContext *ctx, MovieStream *st, int dec_threads)
if (!st->codec_ctx)
return AVERROR(ENOMEM);
st->codec_ctx->flags |= AV_CODEC_FLAG_COPY_OPAQUE;
st->codec_ctx->get_buffer2 = get_buffer;
ret = avcodec_parameters_to_context(st->codec_ctx, st->st->codecpar);
if (ret < 0)
return ret;
@ -479,8 +530,10 @@ static int movie_decode_packet(AVFilterContext *ctx)
/* send the packet to its decoder, if any */
pkt_out_id = pkt.stream_index > movie->max_stream_index ? -1 :
movie->out_index[pkt.stream_index];
if (pkt_out_id >= 0)
if (pkt_out_id >= 0) {
pkt.opaque = ctx->outputs[pkt_out_id];
ret = avcodec_send_packet(movie->st[pkt_out_id].codec_ctx, &pkt);
}
av_packet_unref(&pkt);
return ret;