Aegisub/libaegisub/audio/provider_lock.cpp
wangqr 24d52bb1ee Clearly state int16 Mono of the audio provider in function name
Most code assumes the audio provider is providing int16 single channel audio data, without actually checking them. In this commit, we add a new function to provide the needed int16 mono data with checking.
2019-10-29 21:45:40 -04:00

49 lines
1.6 KiB
C++

// Copyright (c) 2014, Thomas Goyne <plorkyeran@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// Aegisub Project http://www.aegisub.org/
#include "libaegisub/audio/provider.h"
#include <libaegisub/make_unique.h>
#include <mutex>
namespace {
class LockAudioProvider final : public agi::AudioProviderWrapper {
mutable std::mutex mutex;
void FillBuffer(void *buf, int64_t start, int64_t count) const override {
std::unique_lock<std::mutex> lock(mutex);
source->GetAudio(buf, start, count);
}
void FillBufferInt16Mono(int16_t *buf, int64_t start, int64_t count) const override {
std::unique_lock<std::mutex> lock(mutex);
source->GetInt16MonoAudio(buf, start, count);
}
public:
LockAudioProvider(std::unique_ptr<AudioProvider> src)
: AudioProviderWrapper(std::move(src))
{
}
};
}
namespace agi {
std::unique_ptr<AudioProvider> CreateLockAudioProvider(std::unique_ptr<AudioProvider> src) {
return agi::make_unique<LockAudioProvider>(std::move(src));
}
}