CoreAudioCaptureSource.h [plain text]
#pragma once
#if ENABLE(MEDIA_STREAM)
#include "CAAudioStreamDescription.h"
#include "CaptureDevice.h"
#include "RealtimeMediaSource.h"
#include <AudioToolbox/AudioToolbox.h>
#include <CoreAudio/CoreAudioTypes.h>
#include <wtf/HashMap.h>
#include <wtf/Lock.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
#include <wtf/text/WTFString.h>
typedef struct OpaqueCMClock* CMClockRef;
namespace WTF {
class MediaTime;
}
namespace WebCore {
class AudioSampleBufferList;
class AudioSampleDataSource;
class CaptureDeviceInfo;
class WebAudioSourceProviderAVFObjC;
class CoreAudioCaptureSource : public RealtimeMediaSource {
public:
static CaptureSourceOrError create(const String& deviceID, const MediaConstraints*);
WEBCORE_EXPORT static AudioCaptureFactory& factory();
void addEchoCancellationSource(AudioSampleDataSource&);
void removeEchoCancellationSource(AudioSampleDataSource&);
using MicrophoneDataCallback = WTF::Function<void(const MediaTime& sampleTime, const PlatformAudioData& audioData, const AudioStreamDescription& description, size_t sampleCount)>;
uint64_t addMicrophoneDataConsumer(MicrophoneDataCallback&&);
void removeMicrophoneDataConsumer(uint64_t);
CMClockRef timebaseClock();
void beginInterruption();
void endInterruption();
void scheduleReconfiguration();
protected:
CoreAudioCaptureSource(const String& deviceID, const String& label, uint32_t persistentID);
virtual ~CoreAudioCaptureSource();
private:
friend class CoreAudioSharedUnit;
friend class CoreAudioCaptureSourceFactory;
bool isCaptureSource() const final { return true; }
void startProducingData() final;
void stopProducingData() final;
bool applyVolume(double) final { return true; }
bool applySampleRate(int) final;
bool applyEchoCancellation(bool) final;
const RealtimeMediaSourceCapabilities& capabilities() const final;
const RealtimeMediaSourceSettings& settings() const final;
void settingsDidChange() final;
bool interrupted() const final;
uint32_t m_captureDeviceID { 0 };
mutable std::optional<RealtimeMediaSourceCapabilities> m_capabilities;
mutable std::optional<RealtimeMediaSourceSettings> m_currentSettings;
enum class SuspensionType { None, WhilePaused, WhilePlaying };
SuspensionType m_suspendType { SuspensionType::None };
enum class ReconfigurationState { None, Required, Ongoing };
ReconfigurationState m_reconfigurationState { ReconfigurationState::None };
bool m_reconfigurationRequired { false };
bool m_suspendPending { false };
bool m_resumePending { false };
};
}
#endif // ENABLE(MEDIA_STREAM)