diff options
Diffstat (limited to 'include/media/AudioSystem.h')
| -rw-r--r-- | include/media/AudioSystem.h | 55 |
1 files changed, 20 insertions, 35 deletions
diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h index b427036..0cbcdb1 100644 --- a/include/media/AudioSystem.h +++ b/include/media/AudioSystem.h @@ -19,6 +19,7 @@ #include <hardware/audio_effect.h> #include <media/AudioPolicy.h> +#include <media/AudioIoDescriptor.h> #include <media/IAudioFlingerClient.h> #include <media/IAudioPolicyServiceClient.h> #include <system/audio.h> @@ -157,33 +158,6 @@ public: // or no HW sync source is used. static audio_hw_sync_t getAudioHwSyncForSession(audio_session_t sessionId); - // types of io configuration change events received with ioConfigChanged() - enum io_config_event { - OUTPUT_OPENED, - OUTPUT_CLOSED, - OUTPUT_CONFIG_CHANGED, - INPUT_OPENED, - INPUT_CLOSED, - INPUT_CONFIG_CHANGED, - STREAM_CONFIG_CHANGED, - NUM_CONFIG_EVENTS - }; - - // audio output descriptor used to cache output configurations in client process to avoid - // frequent calls through IAudioFlinger - class OutputDescriptor { - public: - OutputDescriptor() - : samplingRate(0), format(AUDIO_FORMAT_DEFAULT), channelMask(0), frameCount(0), latency(0) - {} - - uint32_t samplingRate; - audio_format_t format; - audio_channel_mask_t channelMask; - size_t frameCount; - uint32_t latency; - }; - // Events used to synchronize actions between audio sessions. // For instance SYNC_EVENT_PRESENTATION_COMPLETE can be used to delay recording start until // playback is complete on another audio session. @@ -366,9 +340,16 @@ private: class AudioFlingerClient: public IBinder::DeathRecipient, public BnAudioFlingerClient { public: - AudioFlingerClient() { + AudioFlingerClient() : + mInBuffSize(0), mInSamplingRate(0), + mInFormat(AUDIO_FORMAT_DEFAULT), mInChannelMask(AUDIO_CHANNEL_NONE) { } + void clearIoCache(); + status_t getInputBufferSize(uint32_t sampleRate, audio_format_t format, + audio_channel_mask_t channelMask, size_t* buffSize); + sp<AudioIoDescriptor> getIoDescriptor(audio_io_handle_t ioHandle); + // DeathRecipient virtual void binderDied(const wp<IBinder>& who); @@ -376,7 +357,17 @@ private: // indicate a change in the configuration of an output or input: keeps the cached // values for output/input parameters up-to-date in client process - virtual void ioConfigChanged(int event, audio_io_handle_t ioHandle, const void *param2); + virtual void ioConfigChanged(audio_io_config_event event, + const sp<AudioIoDescriptor>& ioDesc); + private: + Mutex mLock; + DefaultKeyedVector<audio_io_handle_t, sp<AudioIoDescriptor> > mIoDescriptors; + + // cached values for recording getInputBufferSize() queries + size_t mInBuffSize; // zero indicates cache is invalid + uint32_t mInSamplingRate; + audio_format_t mInFormat; + audio_channel_mask_t mInChannelMask; }; class AudioPolicyServiceClient: public IBinder::DeathRecipient, @@ -408,8 +399,6 @@ private: friend class AudioPolicyServiceClient; static Mutex gLock; // protects gAudioFlinger and gAudioErrorCallback, - static Mutex gLockCache; // protects gOutputs, gPrevInSamplingRate, gPrevInFormat, - // gPrevInChannelMask and gInBuffSize static Mutex gLockAPS; // protects gAudioPolicyService and gAudioPolicyServiceClient static sp<IAudioFlinger> gAudioFlinger; static audio_error_callback gAudioErrorCallback; @@ -422,10 +411,6 @@ private: static audio_channel_mask_t gPrevInChannelMask; static sp<IAudioPolicyService> gAudioPolicyService; - - // list of output descriptors containing cached parameters - // (sampling rate, framecount, channel count...) - static DefaultKeyedVector<audio_io_handle_t, OutputDescriptor *> gOutputs; }; }; // namespace android |