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author | melanson <melanson@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-12-27 05:09:43 +0000 |
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committer | melanson <melanson@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-12-27 05:09:43 +0000 |
commit | a527e0f5080d801e87faf29960ee3f5cfc223e96 (patch) | |
tree | 9e35f7ec8b89b59d8750108413afd5c4737474bc /adpcm.h | |
parent | 5194d8791e30f968e569b6b452f9b4374298a539 (diff) | |
download | mpv-a527e0f5080d801e87faf29960ee3f5cfc223e96.tar.bz2 mpv-a527e0f5080d801e87faf29960ee3f5cfc223e96.tar.xz |
implemented open source MS ADPCM decoder
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3788 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'adpcm.h')
-rw-r--r-- | adpcm.h | 29 |
1 files changed, 6 insertions, 23 deletions
@@ -4,29 +4,12 @@ #define IMA_ADPCM_BLOCK_SIZE 0x22 #define IMA_ADPCM_SAMPLES_PER_BLOCK 0x40 -static int adpcm_step[89] = -{ - 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, - 19, 21, 23, 25, 28, 31, 34, 37, 41, 45, - 50, 55, 60, 66, 73, 80, 88, 97, 107, 118, - 130, 143, 157, 173, 190, 209, 230, 253, 279, 307, - 337, 371, 408, 449, 494, 544, 598, 658, 724, 796, - 876, 963, 1060, 1166, 1282, 1411, 1552, 1707, 1878, 2066, - 2272, 2499, 2749, 3024, 3327, 3660, 4026, 4428, 4871, 5358, - 5894, 6484, 7132, 7845, 8630, 9493, 10442, 11487, 12635, 13899, - 15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794, 32767 -}; +#define MS_ADPCM_BLOCK_SIZE 256 +#define MS_ADPCM_SAMPLES_PER_BLOCK ((256 - 7) * 2) -static int adpcm_index[16] = -{ - -1, -1, -1, -1, 2, 4, 6, 8, - -1, -1, -1, -1, 2, 4, 6, 8 -}; - -static int format_0x62_table[16] = -{ - 1, 3, 5, 7, 9, 11, 13, 15, - -1, -3, -5, -7, -9, -11, -13, -15 -}; +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); #endif |