Commit Graph

4 Commits

Author SHA1 Message Date
Christian Schmidt
aca25104ea pcm-dvd: Minor leftovers
Drop a pointless branch in uninit and use the compact copyright.
2013-09-13 12:14:05 +02:00
Christian Schmidt
d9cdb7d8d6 pcm-dvd: Support channel configuration changes
The sample buffering logic does not take into account that the blocksize
could change. Reset the buffer if the channel configuration changes,
since if there are leftover samples, it is most likely a broken or
misconcatenated stream. This could lead to negative numbers for
missing_samples during decoding.

Thanks to Michael Niedermeyer for pointing these out.
2013-09-13 12:14:05 +02:00
Martin Storsjö
21ffd41011 pcm-dvd: Fix build on big endian
Signed-off-by: Martin Storsjö <martin@martin.st>
2013-08-31 18:06:26 +02:00
Christian Schmidt
a42e3a6700 pcm_dvd: consolidate pieces from pcm.c and mpeg.c
Remove the header decoding for PCM audio from mpeg.c and the
20/24bit parts from pcm.c and merge them into a new decoder in
pcm-dvd.c.

The decoder has added support for samples that span multiple
packets and modified 20/24bit group decoding. Both is needed to
decode samples that have been generated with DVD-Lab Pro 2. The
decoding of 16bit PCM and two channel 24bit is identical to
before. No other samples are known to verify the correctness of
the encoding this software does.
The complete list of tested formats is
48kHz/16bit/2-8 channels
48kHz/24bit/2-5 channels
96kHz/16bit/2-4 channels
96kHz/24bit/2 channels

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2013-08-31 11:26:29 +02:00