I'm creating a minimal build of FFmpeg that only has the features I need. Right now, it only has the MOV demuxer. I'm trying to get the sample aspect ratio from the media, but I notice it isn't getting set from the demuxer. If I add the H.264 decoder to the build, even if I don't use it, then the SAR gets set. I think this is because the demuxer tries to decode some frames to fill in some fields.
My question is: is there a way to have the MOV demuxer fill in the SAR without the full decoder present? Or is there a way to parse the SAR out of the codec extra data? I tried using the H.264 parser (even though it is internal-only), but it didn't work.
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