185571bc7Sbellard /* 285571bc7Sbellard * QEMU Mixing engine header 385571bc7Sbellard * 4*1d14ffa9Sbellard * Copyright (c) 2004-2005 Vassili Karpov (malc) 585571bc7Sbellard * 685571bc7Sbellard * Permission is hereby granted, free of charge, to any person obtaining a copy 785571bc7Sbellard * of this software and associated documentation files (the "Software"), to deal 885571bc7Sbellard * in the Software without restriction, including without limitation the rights 985571bc7Sbellard * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 1085571bc7Sbellard * copies of the Software, and to permit persons to whom the Software is 1185571bc7Sbellard * furnished to do so, subject to the following conditions: 1285571bc7Sbellard * 1385571bc7Sbellard * The above copyright notice and this permission notice shall be included in 1485571bc7Sbellard * all copies or substantial portions of the Software. 1585571bc7Sbellard * 1685571bc7Sbellard * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 1785571bc7Sbellard * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 1885571bc7Sbellard * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 1985571bc7Sbellard * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 2085571bc7Sbellard * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 2185571bc7Sbellard * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 2285571bc7Sbellard * THE SOFTWARE. 2385571bc7Sbellard */ 2485571bc7Sbellard #ifndef QEMU_MIXENG_H 2585571bc7Sbellard #define QEMU_MIXENG_H 2685571bc7Sbellard 27*1d14ffa9Sbellard #ifdef FLOAT_MIXENG 28*1d14ffa9Sbellard typedef float real_t; 29*1d14ffa9Sbellard typedef struct { int mute; real_t r; real_t l; } volume_t; 30*1d14ffa9Sbellard typedef struct { real_t l; real_t r; } st_sample_t; 31*1d14ffa9Sbellard #else 32*1d14ffa9Sbellard typedef struct { int mute; int64_t r; int64_t l; } volume_t; 3385571bc7Sbellard typedef struct { int64_t l; int64_t r; } st_sample_t; 34*1d14ffa9Sbellard #endif 3585571bc7Sbellard 36*1d14ffa9Sbellard typedef void (t_sample) (st_sample_t *dst, const void *src, 37*1d14ffa9Sbellard int samples, volume_t *vol); 38*1d14ffa9Sbellard typedef void (f_sample) (void *dst, const st_sample_t *src, int samples); 39*1d14ffa9Sbellard 40*1d14ffa9Sbellard extern t_sample *mixeng_conv[2][2][2][2]; 41*1d14ffa9Sbellard extern f_sample *mixeng_clip[2][2][2][2]; 4285571bc7Sbellard 4385571bc7Sbellard void *st_rate_start (int inrate, int outrate); 4485571bc7Sbellard void st_rate_flow (void *opaque, st_sample_t *ibuf, st_sample_t *obuf, 4585571bc7Sbellard int *isamp, int *osamp); 46*1d14ffa9Sbellard void st_rate_flow_mix (void *opaque, st_sample_t *ibuf, st_sample_t *obuf, 47*1d14ffa9Sbellard int *isamp, int *osamp); 4885571bc7Sbellard void st_rate_stop (void *opaque); 49*1d14ffa9Sbellard void mixeng_clear (st_sample_t *buf, int len); 5085571bc7Sbellard 5185571bc7Sbellard #endif /* mixeng.h */ 52