Olivier Crête f13c757696 h264parse: Require codec_data when receiving stream-format=avc or avc3
It's not really possible to safely interpret the content afterwards if
it's missing.

Even for AVC3, the codec_data doesn't need to contain a SPS/PPS, but
it still needs to be present to tell downstream elements about the size
of the nal unit length field.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8955>
2025-05-12 18:31:46 -04:00
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