vp90-2-22-svc_1280x720_3.ivf decodes almost correctly

[dwlsalmeida]

This is a SVC stream, so there's a few resolution changes at a few points. Looking at YUV, the output is mostly right, but sometimes both resolutions can be seen, with the lower resolution overlaying the larger one by the top-corner.

SVC is quite important in video-conferencing and there's only two test vectors to test this.

Note: This also does not pass on GStreamer.

Largest layer is 720p

ccdec.tar.gz