Change #265661

Comments

avfilter/scale_eval: reject non-positive output dimensions
When scale filter expressions evaluate to zero or negative output
dimensions (e.g. cascaded scale=...:-2 on extreme aspect ratios),
ff_scale_adjust_dimensions() only checked for int32 overflow and
passed them through, potentially hanging downstream components.

Reject them explicitly so the pipeline fails fast.

Callers that currently ignore the return value will be updated in
the following patches to propagate the error.

Signed-off-by: Jun Zhao <barryjzhao@tencent.com>

Changed files

• libavfilter/scale_eval.c