On further investigation it's already open upstream. This problem arises because the relevant file's "fmt " chunk specifies type 0x01 (it's in little-endian format, two bytes at offset 0x14), which is uncompressed PCM data.
The file now plays properly in ffplay, and ffmpeg can decode it properly.
I would consider this a problem with the file, but according to the following thread on ffmpeg-devel, it's standard for programs writing DTS audio to do so with a broken header to maintain compatibility with broken CD burning programs. There was a patch proposed, but it wasn't adopted at the time.
As an aside, there's a workaround which I had thought didn't work because I was specifying the options in the wrong order. Using "ffplay -f dts file.wav" or "ffmpeg -f dts -i file.wav output.ogg" skips the codec detection, and works properly.
On further investigation it's already open upstream. This problem arises because the relevant file's "fmt " chunk specifies type 0x01 (it's in little-endian format, two bytes at offset 0x14), which is uncompressed PCM data.
http:// www.sonicspot. com/guide/ wavefiles. html#fmt
$ hexdump -x diatonis_ dts_secret- universe. wav -n 2 -s 0x14
0000014 0001
0000016
Using hexedit to change the bytes at offset 0x14 from 01 00 to 01 20 (0x2001 in little-endian format):
$ hexdump -x diatonis_ dts_secret- universe. wav -n 2 -s 0x14
0000014 2001
0000016
The file now plays properly in ffplay, and ffmpeg can decode it properly.
I would consider this a problem with the file, but according to the following thread on ffmpeg-devel, it's standard for programs writing DTS audio to do so with a broken header to maintain compatibility with broken CD burning programs. There was a patch proposed, but it wasn't adopted at the time.
http:// lists.mplayerhq .hu/pipermail/ ffmpeg- devel/2006- February/ 007703. html
As an aside, there's a workaround which I had thought didn't work because I was specifying the options in the wrong order. Using "ffplay -f dts file.wav" or "ffmpeg -f dts -i file.wav output.ogg" skips the codec detection, and works properly.