This makes the format metadata null (instead of an empty Metadata
object) when it is not provided, and is therefore consistent with the
other extractors behavior.
PiperOrigin-RevId: 284171148
1. Allow retaining a decoder without any reconfiguration, in addition
to retaining with reconfiguration (and not retaining)
2. Fix retention logic for video decoders to take into account changing
ColorInfo
3. Allow retention of audio decoders when possible
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187500285
Partial reads were performed once using a partial size of 1 byte.
This was not enough to detect problems which only occur in combination
with IOExceptions. Partial reads are now only applied when no exception
is thrown.
Moreover, the tests didn't check whether the total number of sampled bytes
is what it is supposed to be. Added a field to the data dumps checking
the total number of bytes in the sampled data.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=181296545
