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FS#9577 - SNES player missing tracks on certain SPCs

Attached to Project: Rockbox
Opened by Alfred Hoppe (DoomRater) - Tuesday, 25 November 2008, 21:48 GMT+2
Last edited by Michael Sevakis (MikeS) - Tuesday, 21 May 2013, 10:30 GMT+2
Task Type Bugs
Category Codecs
Status Closed
Assigned To No-one
Player Type Sansa e200
Severity Low
Priority Normal
Reported Version Release 3.0
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Private No

Details

Most notable on Dragon: the Bruce Lee Story. There are certain notes that do not play on the rockbox player but do play on SNESAmp as well as real carts.

recordings from Dragon_01.spc from both SNESAmp and the Rockbox player starting from about 45 seconds in for comparison. Also Dragon_01.spc included.
   SNES Plugin bug.zip (896.7 KiB)
This task depends upon

Closed by  Michael Sevakis (MikeS)
Tuesday, 21 May 2013, 10:30 GMT+2
Reason for closing:  Fixed
Additional comments about closing:  Fixed in 71b9685
Comment by Michael Sevakis (MikeS) - Thursday, 21 April 2011, 12:20 GMT+2
Confirmed on e200. On my Gigabeat S it plays correctly but that uses realtime BRR decode.
Comment by Michael Sevakis (MikeS) - Tuesday, 21 May 2013, 07:56 GMT+2
I figured out what this is. BRR caching assumes samples are self contained and that loops are inside the initial wave but Dragon_01 breaks that assumption by stitching various waves together. This doesn't bother realtime BRR decoding but does mess up the cache. I will try to come up with a fix but it looks a wee bit tricky.

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