mirror of
https://github.com/love2d/love.git
synced 2026-08-12 08:30:56 +02:00
John Doe
157 lines
3.4 KiB
C++
157 lines
3.4 KiB
C++
/**
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* Copyright (c) 2006-2025 LOVE Development Team
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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**/
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#include "RecordingDevice.h"
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#include "Audio.h"
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#include "sound/Sound.h"
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namespace love
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{
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namespace audio
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{
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namespace openal
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{
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#define soundInstance() (Module::getInstance<love::sound::Sound>(Module::M_SOUND))
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class InvalidFormatException : public love::Exception
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{
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public:
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InvalidFormatException(int channels, int bitdepth)
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: Exception("Recording %d channels with %d bits per sample is not supported.", channels, bitdepth)
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{
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}
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};
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RecordingDevice::RecordingDevice(const char *name)
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: name(name)
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{
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}
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RecordingDevice::~RecordingDevice()
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{
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stop();
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}
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bool RecordingDevice::start(int samples, int sampleRate, int bitDepth, int channels)
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{
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ALenum format = Audio::getFormat(bitDepth, channels);
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if (format == AL_NONE)
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throw InvalidFormatException(channels, bitDepth);
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if (samples <= 0)
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throw love::Exception("Invalid number of samples.");
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if (sampleRate <= 0)
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throw love::Exception("Invalid sample rate.");
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if (isRecording())
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stop();
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// This hard-crashes on iOS with Apple's OpenAL implementation, even when
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// the user gives permission to the app.
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#ifndef LOVE_IOS
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device = alcCaptureOpenDevice(name.c_str(), sampleRate, format, samples);
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#endif
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if (device == nullptr)
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return false;
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alcCaptureStart(device);
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this->samples = samples;
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this->sampleRate = sampleRate;
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this->bitDepth = bitDepth;
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this->channels = channels;
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return true;
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}
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void RecordingDevice::stop()
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{
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if (!isRecording())
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return;
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alcCaptureStop(device);
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alcCaptureCloseDevice(device);
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device = nullptr;
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}
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love::sound::SoundData *RecordingDevice::getData()
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{
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if (!isRecording())
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return nullptr;
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int samples = getSampleCount();
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if (samples == 0)
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return nullptr;
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love::sound::SoundData *soundData = soundInstance()->newSoundData(samples, sampleRate, bitDepth, channels);
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alcCaptureSamples(device, soundData->getData(), samples);
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return soundData;
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}
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int RecordingDevice::getSampleCount() const
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{
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if (!isRecording())
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return 0;
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ALCint samples;
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alcGetIntegerv(device, ALC_CAPTURE_SAMPLES, sizeof(ALCint), &samples);
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return (int)samples;
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}
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int RecordingDevice::getMaxSamples() const
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{
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return samples;
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}
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int RecordingDevice::getSampleRate() const
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{
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return sampleRate;
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}
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int RecordingDevice::getBitDepth() const
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{
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return bitDepth;
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}
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int RecordingDevice::getChannelCount() const
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{
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return channels;
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}
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const char *RecordingDevice::getName() const
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{
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return name.c_str();
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}
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bool RecordingDevice::isRecording() const
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{
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return device != nullptr;
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}
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} //openal
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} //audio
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} //love
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