[PATCH v5 0/1] MR7439: winedmo: Find mp3 stream info if channel data is missing.

[Brendan McGrath (＠redmcg)]

This fixes missing mp3 channel data in the FFmpeg demuxer.

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  v5: winedmo: Call avformat_find_stream_info for the mp3 format.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/7439