[PATCH v2 0/1] MR8719: winegstreamer: Only add the capsfilter for avdec_h264.

[Brendan McGrath (＠redmcg)]

avdec_h264 will fail when combined with h264parse and a drain request
is made during caps neg.

To fix this, a capsfilter was added to force a stream-format of
byte-stream for all h.264 decoders. However, this introduced a new
issue with the vtdec element, as it only supports the avc stream-format.

Therefore, this patch looks to address both problems by only introducing
the capsfilter when the avdec_h264 element is used.

It also removes the stream-format and alignment requirements from
the parsed caps, applying them only to the capsfilter.

--
  v2: winegstreamer: Only add the capsfilter for avdec_h264.

https://gitlab.winehq.org/wine/wine/-/merge_requests/8719