mirror of
https://github.com/mpv-player/mpv.git
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c87224bf1b
All authors have agreed to the relicensing. The code was pretty much rewritten by Stefano Pigozzi. Since the rewrite happened incrementally, and seems to include refactored portions of older code, this relicensing was done on the pre-refactor code do. The original commit adding this AO (as ao_macosx.c) credits Timothy J. Wood as original author. He was asked and agreed to LGPL. It's not entirely sure from which project this code came from, but it's probably libao. In that project, Stanley Seibert made some changes to it (who as a major developer of libao was asked just to be sure), and also Ralph Giles and Ben Hines made two small changes. The latter were not asked, but none of their code survived anyway.
104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Abstractions on the CoreAudio API to make property setting/getting suck les
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*/
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#include "audio/out/ao_coreaudio_properties.h"
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#include "audio/out/ao_coreaudio_utils.h"
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#include "mpv_talloc.h"
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OSStatus ca_get(AudioObjectID id, ca_scope scope, ca_sel selector,
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uint32_t size, void *data)
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{
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AudioObjectPropertyAddress p_addr = (AudioObjectPropertyAddress) {
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.mSelector = selector,
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.mScope = scope,
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.mElement = kAudioObjectPropertyElementMaster,
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};
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return AudioObjectGetPropertyData(id, &p_addr, 0, NULL, &size, data);
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}
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OSStatus ca_set(AudioObjectID id, ca_scope scope, ca_sel selector,
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uint32_t size, void *data)
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{
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AudioObjectPropertyAddress p_addr = (AudioObjectPropertyAddress) {
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.mSelector = selector,
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.mScope = scope,
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.mElement = kAudioObjectPropertyElementMaster,
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};
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return AudioObjectSetPropertyData(id, &p_addr, 0, NULL, size, data);
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}
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OSStatus ca_get_ary(AudioObjectID id, ca_scope scope, ca_sel selector,
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uint32_t element_size, void **data, size_t *elements)
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{
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OSStatus err;
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uint32_t p_size;
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AudioObjectPropertyAddress p_addr = (AudioObjectPropertyAddress) {
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.mSelector = selector,
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.mScope = scope,
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.mElement = kAudioObjectPropertyElementMaster,
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};
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err = AudioObjectGetPropertyDataSize(id, &p_addr, 0, NULL, &p_size);
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CHECK_CA_ERROR_SILENT_L(coreaudio_error);
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*data = talloc_zero_size(NULL, p_size);
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*elements = p_size / element_size;
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err = ca_get(id, scope, selector, p_size, *data);
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CHECK_CA_ERROR_SILENT_L(coreaudio_error_free);
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return err;
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coreaudio_error_free:
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talloc_free(*data);
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coreaudio_error:
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return err;
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}
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OSStatus ca_get_str(AudioObjectID id, ca_scope scope, ca_sel selector,
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char **data)
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{
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CFStringRef string;
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OSStatus err =
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ca_get(id, scope, selector, sizeof(CFStringRef), (void **)&string);
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CHECK_CA_ERROR_SILENT_L(coreaudio_error);
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*data = cfstr_get_cstr(string);
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CFRelease(string);
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coreaudio_error:
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return err;
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}
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Boolean ca_settable(AudioObjectID id, ca_scope scope, ca_sel selector,
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Boolean *data)
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{
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AudioObjectPropertyAddress p_addr = (AudioObjectPropertyAddress) {
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.mSelector = selector,
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.mScope = kAudioObjectPropertyScopeGlobal,
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.mElement = kAudioObjectPropertyElementMaster,
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};
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return AudioObjectIsPropertySettable(id, &p_addr, data);
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}
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