Andreas Rheinhardt e1f41b4fdc avformat/wavdec: Fix reading files with id3v2 apic before fmt tag ...

Up until now the cover images will get the stream index 0 in this case,
violating the hardcoded assumption that this is the index of the audio
stream. Fix this by creating the audio stream first; this is also in
line with the expectations of ff_pcm_read_seek() and
ff_spdif_read_packet(). It also simplifies the code to parse the fmt and
xma2 tags.

Fixes #8540; regression since f5aad350d3.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

2021-04-18 02:49:43 +02:00

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