Currently if a file doesn't contain a fmt tag as the first section in the header wavparse will search for it until it either finds it or comes across an unknown tag. The present implementation is configured to ignore a number of known header sections, however this doesn't include headers from the Broadcast Wave Format (BWF). This can result in wavparse failing to play wave files with additional BWF metadata (if this metadata precedes the fmt section).

This can be reproduced with the attached sample which was produced by a Sound Devices 702 audio recorder. When played via a simple playbin it produces the following output:

Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
ERROR: from element /GstPlayBin:playbin0/GstURIDecodeBin:uridecodebin0/GstDecodeBin:decodebin0/GstWavParse:wavparse0: Could not determine type of stream.
Additional debug info:
gstwavparse.c(1966): gst_wavparse_stream_headers (): /GstPlayBin:playbin0/GstURIDecodeBin:uridecodebin0/GstDecodeBin:decodebin0/GstWavParse:wavparse0:
Invalid WAV header (no fmt at start): iXML
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...

The attached patch makes wavparse aware of all the BWF tags and so allows the clip to play correctly.