Rockbox

With one particular FLAC/CUE combination, if I try to seek to track 2 in the CUE, I end up in the next file in the playlist. This happens because flac_sync fails to sync in 10 tries at one point. Then, flac_seek fails, flac_decode_frame fails, and the codec returns CODEC_ERROR.

I am attaching "frame_sync problem.flac", which consists of two frames cut from the FLAC file. The file seek gets to what corresponds to offset 0x5F9, a place inside the first frame. The code ought to find the second frame, but it gives up after 10 tries in the "for(unparseable_count" loop. Increasing the limit to 20 ("unparseable_count < 20") causes the seek to succeed, but that is probably a workaround, and not an ideal fix.

The same file also triggered  FS#10476 . However, I think that bug is not related.

I noticed the problem on my 5G iPod running r22076, and I performed debugging on the r22076 5G iPod sim.