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Fixed compile errors for audio resampling. I'm not sure how this got missed...

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--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%403171
This commit is contained in:
Sam Lantinga 2008-08-26 02:26:18 +00:00
parent 2d697eb0ad
commit a1b6c39a96
1 changed files with 6 additions and 1 deletions
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7
include/SDL_audio.h
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@ -142,10 +142,15 @@ typedef struct SDL_AudioCVT
SDL_AudioFormat dst_format; /* Target audio format */
double rate_incr; /* Rate conversion increment */
Uint8 *buf; /* Buffer to hold entire audio data */
Uint8 *coeff; /* Filter coefficients: either big windowed sinc filter, or 6 IIR lowpass coefficients */
Uint8 *state_buf; /* Sample history for either the FIR or IIR filter. For IIR filter, first two elements are X, second two are Y, and state_pos toggles the order */
int state_pos; /* Position in the state */
int len_sinc; /* Length of windowed sinc filter, in appropriate units (not necessarily bytes) */
int len; /* Length of original audio buffer */
int len_cvt; /* Length of converted audio buffer */
int len_mult; /* buffer must be len*len_mult big */
double len_ratio; /* Given len, final size is len*len_ratio */
int len_div; /* destination length = len_mult / len_div * src length */
double len_ratio; /* Given len, final size is len*len_ratio ( len_ratio = len_mult / len_div ) */
SDL_AudioFilter filters[10]; /* Filter list */
int filter_index; /* Current audio conversion function */
} SDL_AudioCVT;