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mpv/adpcm.h
melanson 4bbefcad28 fixed format 0x62 ADPCM audio
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4002 b3059339-0415-0410-9bf9-f77b7e298cf2
2002-01-06 01:56:27 +00:00

31 lines
1.0 KiB
C

#ifndef ADPCM_H
#define ADPCM_H
#define IMA_ADPCM_PREAMBLE_SIZE 2
#define IMA_ADPCM_BLOCK_SIZE 0x22
#define IMA_ADPCM_SAMPLES_PER_BLOCK \
((IMA_ADPCM_BLOCK_SIZE - IMA_ADPCM_PREAMBLE_SIZE) * 2)
#define MS_ADPCM_PREAMBLE_SIZE 7
#define MS_ADPCM_SAMPLES_PER_BLOCK \
((sh_audio->wf->nBlockAlign - MS_ADPCM_PREAMBLE_SIZE) * 2)
#define FOX61_ADPCM_PREAMBLE_SIZE 4
#define FOX61_ADPCM_BLOCK_SIZE 0x200
#define FOX61_ADPCM_SAMPLES_PER_BLOCK \
(((FOX61_ADPCM_BLOCK_SIZE - FOX61_ADPCM_PREAMBLE_SIZE) * 2) + 1)
// pretend there's such a thing as mono for this format
#define FOX62_ADPCM_PREAMBLE_SIZE 8
#define FOX62_ADPCM_BLOCK_SIZE 0x400
// this isn't exact
#define FOX62_ADPCM_SAMPLES_PER_BLOCK 6000
int ima_adpcm_decode_block(unsigned short *output, unsigned char *input,
int channels);
int ms_adpcm_decode_block(unsigned short *output, unsigned char *input,
int channels, int block_size);
int fox61_adpcm_decode_block(unsigned short *output, unsigned char *input);
int fox62_adpcm_decode_block(unsigned short *output, unsigned char *input);
#endif