Dana 2. 6. 2015. 17:50 osoba "Donny Yang" <w...@kota.moe> napisala je:
>
> Signed-off-by: Donny Yang <w...@kota.moe>
> ---
> libavcodec/pngdec.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c
> index 1f5c433..1667530 100644
> --- a/libavcodec/pngdec.c
> +++ b/libavcodec/pngdec.c
> @@ -891,7 +891,8 @@ static int handle_p_frame_apng(AVCodecContext *avctx,
PNGDecContext *s,
> return AVERROR(ENOMEM);
>
> if (s->blend_op == APNG_BLEND_OP_OVER &&
> - avctx->pix_fmt != AV_PIX_FMT_RGBA) {
> + avctx->pix_fmt != AV_PIX_FMT_RGBA &&
> + avctx->pix_fmt != AV_PIX_FMT_GRAY8A) {
> avpriv_request_sample(avctx, "Blending with pixel format %s",
> av_get_pix_fmt_name(avctx->pix_fmt));
> return AVERROR_PATCHWELCOME;
> @@ -935,6 +936,11 @@ static int handle_p_frame_apng(AVCodecContext
*avctx, PNGDecContext *s,
> foreground_alpha = foreground[3];
> background_alpha = background[3];
> break;
> +
> + case AV_PIX_FMT_GRAY8A:
> + foreground_alpha = foreground[1];
> + background_alpha = background[1];
> + break;
> }
>
> if (foreground_alpha == 0)
> --
> 2.4.0
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
Is there actual sample?
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