From 2481392fe5928a4cd413caad8045c0094e39026a Mon Sep 17 00:00:00 2001 From: James Almer Date: Thu, 23 Jul 2026 10:39:44 -0300 Subject: [PATCH] avcodec/get_buffer: use frame pixel format instead of context 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 (cherry picked from commit e1c1b6c55835d13647636340d478d370aa48fb8d) --- libavcodec/get_buffer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/get_buffer.c b/libavcodec/get_buffer.c index 1f691334f0..6582c47315 100644 --- a/libavcodec/get_buffer.c +++ b/libavcodec/get_buffer.c @@ -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;