From 8b23a6c7e1aee255004dd19098d4c2462b61b849 Mon Sep 17 00:00:00 2001 From: The Android Open Source Project Date: Tue, 3 Mar 2009 19:30:32 -0800 Subject: auto import from //depot/cupcake/@135843 --- audio/mixeng.h | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 audio/mixeng.h (limited to 'audio/mixeng.h') diff --git a/audio/mixeng.h b/audio/mixeng.h new file mode 100644 index 0000000..95b68df --- /dev/null +++ b/audio/mixeng.h @@ -0,0 +1,51 @@ +/* + * QEMU Mixing engine header + * + * Copyright (c) 2004-2005 Vassili Karpov (malc) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#ifndef QEMU_MIXENG_H +#define QEMU_MIXENG_H + +#ifdef FLOAT_MIXENG +typedef float real_t; +typedef struct { int mute; real_t r; real_t l; } volume_t; +typedef struct { real_t l; real_t r; } st_sample_t; +#else +typedef struct { int mute; int64_t r; int64_t l; } volume_t; +typedef struct { int64_t l; int64_t r; } st_sample_t; +#endif + +typedef void (t_sample) (st_sample_t *dst, const void *src, + int samples, volume_t *vol); +typedef void (f_sample) (void *dst, const st_sample_t *src, int samples); + +extern t_sample *mixeng_conv[2][2][2][3]; +extern f_sample *mixeng_clip[2][2][2][3]; + +void *st_rate_start (int inrate, int outrate); +void st_rate_flow (void *opaque, st_sample_t *ibuf, st_sample_t *obuf, + int *isamp, int *osamp); +void st_rate_flow_mix (void *opaque, st_sample_t *ibuf, st_sample_t *obuf, + int *isamp, int *osamp); +void st_rate_stop (void *opaque); +void mixeng_clear (st_sample_t *buf, int len); + +#endif /* mixeng.h */ -- cgit v1.1