[FFmpeg-devel] [PATCH, v3] lavc/vp9: fix reference frame dimensions check for SINGLE_REFERENCE mode

[Carl Eugen Hoyos]

Am Di., 17. März 2020 um 10:45 Uhr schrieb Linjie Fu <linjie.fu at intel.com>:
>
> With the description in frame size with refs semantics (SPEC 7.2.5),
> it is a requirement of bitstream conformance that for at least one
> reference frame has the valid dimensions.
>
> Modify the check to make sure the decoder works well in SINGLE_REFERENCE
> mode that not all reference frames have valid dimensions.
>
> Check and error out if invalid reference frame is used in inter_recon.

I strongly suspect we only want to error out if explode > default.

Not necessarily related to this patch:
In general, FFmpeg should not unnecessarily copy the behaviour
of other libraries.

Carl Eugen