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avcodec/get_buffer: use frame pixel format instead of context

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The documentation for get_buffer2() states:

"This callback must use the frame values, not the codec context values, to
calculate the required buffer size."

Fixes wrong output on hbd LCEVC enhanced samples where the base stream is
8bit.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit e1c1b6c558)
This commit is contained in:
James Almer
2026-07-23 10:39:44 -03:00
committed by ffmpeg-devel
parent 9b6ffd74b5
commit 2481392fe5
1 changed files with 2 additions and 2 deletions
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4
libavcodec/get_buffer.c
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@@ -100,7 +100,7 @@ static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
do {
// NOTE: do not align linesizes individually, this breaks e.g. assumptions
// that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
ret = av_image_fill_linesizes(linesize, avctx->pix_fmt, w);
ret = av_image_fill_linesizes(linesize, frame->format, w);
if (ret < 0)
goto fail;
// increase alignment of w for next try (rhs gives the lowest bit set in w)
@@ -113,7 +113,7 @@ static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
for (i = 0; i < 4; i++)
linesize1[i] = linesize[i];
ret = av_image_fill_plane_sizes(size, avctx->pix_fmt, h, linesize1);
ret = av_image_fill_plane_sizes(size, frame->format, h, linesize1);
if (ret < 0)
goto fail;