mirror of
https://github.com/mpv-player/mpv
synced 2024-10-18 10:25:02 +02:00
ba4694f4bb
(including MS, DK4 and DK3 ADPCM) git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4855 b3059339-0415-0410-9bf9-f77b7e298cf2
32 lines
1.0 KiB
C
32 lines
1.0 KiB
C
#ifndef ADPCM_H
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#define ADPCM_H
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#define IMA_ADPCM_PREAMBLE_SIZE 2
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#define IMA_ADPCM_BLOCK_SIZE 0x22
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#define IMA_ADPCM_SAMPLES_PER_BLOCK \
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((IMA_ADPCM_BLOCK_SIZE - IMA_ADPCM_PREAMBLE_SIZE) * 2)
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#define MS_ADPCM_PREAMBLE_SIZE 7
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#define MS_ADPCM_SAMPLES_PER_BLOCK \
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((sh_audio->wf->nBlockAlign - MS_ADPCM_PREAMBLE_SIZE) * 2)
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#define DK4_ADPCM_PREAMBLE_SIZE 4
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#define DK4_ADPCM_SAMPLES_PER_BLOCK \
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(((sh_audio->wf->nBlockAlign - DK4_ADPCM_PREAMBLE_SIZE) * 2) + 1)
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// pretend there's such a thing as mono for this format
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#define DK3_ADPCM_PREAMBLE_SIZE 8
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#define DK3_ADPCM_BLOCK_SIZE 0x400
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// this isn't exact
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#define DK3_ADPCM_SAMPLES_PER_BLOCK 6000
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int ima_adpcm_decode_block(unsigned short *output, unsigned char *input,
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int channels);
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int ms_adpcm_decode_block(unsigned short *output, unsigned char *input,
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int channels, int block_size);
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int dk4_adpcm_decode_block(unsigned short *output, unsigned char *input,
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int channels, int block_size);
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int dk3_adpcm_decode_block(unsigned short *output, unsigned char *input);
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#endif
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