Quoting Paul B Mahol (2023-05-18 12:22:07)
> From af73b69a0be9033fddf222b6e9ac60799de85691 Mon Sep 17 00:00:00 2001
> From: Paul B Mahol <one...@gmail.com>
> Date: Mon, 15 May 2023 21:54:25 +0200
> Subject: [PATCH 26/27] avfilter/src_movie: dr support
>
> Signed-off-by: Paul B Mahol <one...@gmail.com>
> ---
> libavfilter/src_movie.c | 44 +++++++++++++++++++++++++++++++++++++++--
> 1 file changed, 42 insertions(+), 2 deletions(-)
>
> diff --git a/libavfilter/src_movie.c b/libavfilter/src_movie.c
> index 5937613d13..a2ecc5a625 100644
> --- a/libavfilter/src_movie.c
> +++ b/libavfilter/src_movie.c
> @@ -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 +155,43 @@ 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;
This is not guaranteed to be set. Use AVCodecContext.opaque instead.
> + int w, h, ow, oh;
> + AVFrame *new;
> +
> + h = oh = frame->height;
> + w = ow = frame->width;
> +
> + if (!(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;
For what purpose?
--
Anton Khirnov
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