fre 2022-09-23 klockan 17:41 +0200 skrev Andreas Rheinhardt:
> This could be improved further by not allocating the buffers
> that won't be needed lateron in the first place.
My parallellization patches do this
>
> Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
> ---
> libavcodec/jpeg2000dec.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c
> index c3f2a7aa03..63a706fbf5 100644
> --- a/libavcodec/jpeg2000dec.c
> +++ b/libavcodec/jpeg2000dec.c
> @@ -2523,6 +2523,11 @@ static int
> jpeg2000_decode_frame(AVCodecContext *avctx, AVFrame *picture,
> avctx->sample_aspect_ratio = s->sar;
> s->sar.num = s->sar.den = 0;
>
> + if (avctx->skip_frame >= AVDISCARD_ALL) {
> + jpeg2000_dec_cleanup(s);
> + return 0;
> + }
> +
> /* get picture buffer */
> if ((ret = ff_thread_get_buffer(avctx, picture, 0)) < 0)
> goto end;
> @@ -2587,4 +2592,5 @@ const FFCodec ff_jpeg2000_decoder = {
> .p.priv_class = &jpeg2000_class,
> .p.max_lowres = 5,
> .p.profiles = NULL_IF_CONFIG_SMALL(ff_jpeg2000_profiles),
> + .caps_internal = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
Looks good
/Tomas
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