On 11/15/2019 9:42 PM, James Almer wrote:
> In scearios where a Temporal Unit is written right after reading it using the 
> same
> CBS context (av1_metadata, av1_frame_merge, etc), the reference frame state 
> used
> by the writer must not be the state that's the result of the reader having 
> already
> parsed the current frame in question.
> 
> This fixes writing frames of type Switch.
> 
> Signed-off-by: James Almer <jamr...@gmail.com>
> ---
> This may be needed for other modules as well. I see at least VP9 and h264/hevc
> keeping some sort of state.
> 
> Alternatively, we could just require a given CBS context to be used to either 
> read
> or write, but not both.
> 
> v2: Simpler version

Here's a sample using Switch frames:
https://code.videolan.org/videolan/dav1d-test-data/raw/658e23584d5add2929abe14b3592073fc711e768/8-bit/sframe/autostitch-480p-240p-160p-10s.ivf
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