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Specify maximum sample rate of MLP by defining the factor relative to 48000

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instead of directly.
This makes clear that the code assumes the maximum sample rate to be
a multiple of 48000 and also removes the division from the MAX_BLOCKSIZE
macros, which causes an issue with the Solaris assembler where "/" is
a comment marker unless the --divide option is used.

Originally committed as revision 20026 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger 2009-09-26 16:04:35 +00:00
parent a8c7a3d2c1
commit a55247e761
1 changed files with 5 additions and 3 deletions
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8
libavcodec/mlp.h
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@ -47,13 +47,15 @@
*/ */
#define MAX_SUBSTREAMS 3 #define MAX_SUBSTREAMS 3
/** which multiple of 48000 the maximum sample rate is */
#define MAX_RATEFACTOR 4
/** maximum sample frequency seen in files */ /** maximum sample frequency seen in files */
#define MAX_SAMPLERATE 192000 #define MAX_SAMPLERATE (MAX_RATEFACTOR * 48000)
/** maximum number of audio samples within one access unit */ /** maximum number of audio samples within one access unit */
#define MAX_BLOCKSIZE (40 * (MAX_SAMPLERATE / 48000)) #define MAX_BLOCKSIZE (40 * MAX_RATEFACTOR)
/** next power of two greater than MAX_BLOCKSIZE */ /** next power of two greater than MAX_BLOCKSIZE */
#define MAX_BLOCKSIZE_POW2 (64 * (MAX_SAMPLERATE / 48000)) #define MAX_BLOCKSIZE_POW2 (64 * MAX_RATEFACTOR)
/** number of allowed filters */ /** number of allowed filters */
#define NUM_FILTERS 2 #define NUM_FILTERS 2