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180b044ffd
There are reports that since commit2ceb8240fa"coreaudio: port to the new audio backend api" audio playback with CoreAudio is broken. This patch reverts some parts the commit. Because of changes in the audio subsystem the audio clip function in v4.1.0 of coreaudio.c had to be moved to mixeng.c and the generic buffer management code needed a hint about the size of the float type. This patch is based on a patch from Zoltán Kővágó found at https://lists.nongnu.org/archive/html/qemu-devel/2020-01/msg02142.html. Fixes:2ceb8240fa"coreaudio: port to the new audio backend api" Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-id: 20200202140641.4737-1-vr_qemu@t-online.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
59 lines
2.4 KiB
C
59 lines
2.4 KiB
C
/*
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* QEMU Mixing engine header
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*
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* Copyright (c) 2004-2005 Vassili Karpov (malc)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef QEMU_MIXENG_H
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#define QEMU_MIXENG_H
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#ifdef FLOAT_MIXENG
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typedef float mixeng_real;
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struct mixeng_volume { int mute; mixeng_real r; mixeng_real l; };
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struct st_sample { mixeng_real l; mixeng_real r; };
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#else
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struct mixeng_volume { int mute; int64_t r; int64_t l; };
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struct st_sample { int64_t l; int64_t r; };
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#endif
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typedef struct st_sample st_sample;
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typedef void (t_sample) (struct st_sample *dst, const void *src, int samples);
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typedef void (f_sample) (void *dst, const struct st_sample *src, int samples);
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extern t_sample *mixeng_conv[2][2][2][3];
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extern f_sample *mixeng_clip[2][2][2][3];
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void conv_natural_float_to_stereo(struct st_sample *dst, const void *src,
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int samples);
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void clip_natural_float_from_stereo(void *dst, const struct st_sample *src,
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int samples);
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void *st_rate_start (int inrate, int outrate);
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void st_rate_flow(void *opaque, st_sample *ibuf, st_sample *obuf,
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size_t *isamp, size_t *osamp);
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void st_rate_flow_mix(void *opaque, st_sample *ibuf, st_sample *obuf,
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size_t *isamp, size_t *osamp);
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void st_rate_stop (void *opaque);
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void mixeng_clear (struct st_sample *buf, int len);
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void mixeng_volume (struct st_sample *buf, int len, struct mixeng_volume *vol);
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#endif /* QEMU_MIXENG_H */
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