[FFmpeg-devel] [PATCH] avcodec/cbs_av1: fix setting FrameWidth in frame_size_with_refs()

[James Almer]

Section 5.9.7 of the spec states

    UpscaledWidth = RefUpscaledWidth[ ref_frame_idx[ i ] ]
    FrameWidth    = UpscaledWidth
    FrameHeight   = RefFrameHeight[ ref_frame_idx[ i ] ]
    RenderWidth   = RefRenderWidth[ ref_frame_idx[ i ] ]
    RenderHeight  = RefRenderHeight[ ref_frame_idx[ i ] ]

Meaning FrameWidth must not be set to RefFrameWidth[ ref_frame_idx[ i ] ]
as we're currently doing.

Signed-off-by: James Almer <jamrial at gmail.com>
---
 libavcodec/cbs_av1_syntax_template.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/cbs_av1_syntax_template.c b/libavcodec/cbs_av1_syntax_template.c
index dedd549572..d6b79dacd3 100644
--- a/libavcodec/cbs_av1_syntax_template.c
+++ b/libavcodec/cbs_av1_syntax_template.c
@@ -553,7 +553,7 @@ static int FUNC(frame_size_with_refs)(CodedBitstreamContext *ctx, RWContext *rw,
             infer(render_height_minus_1, ref->render_height - 1);
 
             priv->upscaled_width = ref->upscaled_width;
-            priv->frame_width    = ref->frame_width;
+            priv->frame_width    = priv->upscaled_width;
             priv->frame_height   = ref->frame_height;
             priv->render_width   = ref->render_width;
             priv->render_height  = ref->render_height;
-- 
2.27.0