flvdemux: Bitrate handling and misc fixes

• flvdemux: Answer bitrate queries from upstream

       If upstream (such as queue2 in urisourcebin) asks for our bitrate, check if we
       have stored audio/video bitrates, and use them.

• flvdemux: Handle empty metadata strings

       g_utf8_validate() errors out on empty string. But empty strings are valid,
       so only check if they're not

• flvdemux: Set ACCEPT_TEMPLATE flag on sinkpad

       A demuxer can accept any caps matching its sinkpad template caps

Looks good to me otherwise, thanks :)

added 1 commit

• bdac5d63 - flvdemux: Answer bitrate queries from upstream

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resolved all threads

added 1 commit

• 70f80f32 - flvdemux: Answer bitrate queries from upstream

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assigned to @gstreamer-merge-bot

mentioned in commit bilboed/gst-plugins-good@e8282661

mentioned in commit bilboed/gst-plugins-good@9f5f9065

mentioned in commit bilboed/gst-plugins-good@5dd3643d

added 3 commits

• 9f5f9065 - flvdemux: Set ACCEPT_TEMPLATE flag on sinkpad
• e8282661 - flvdemux: Handle empty metadata strings
• 5dd3643d - flvdemux: Answer bitrate queries from upstream

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assigned to @bilboed and unassigned @gstreamer-merge-bot

I couldn't merge this branch: CI failed!

assigned to @gstreamer-merge-bot and unassigned @bilboed

mentioned in merge request !597 (merged)

assigned to @bilboed and unassigned @gstreamer-merge-bot

I couldn't merge this branch: CI failed!

merged

unassigned @bilboed

changed milestone to %1.17.1