diff options
Diffstat (limited to 'include/private')
| -rw-r--r-- | include/private/media/AudioTrackShared.h | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/include/private/media/AudioTrackShared.h b/include/private/media/AudioTrackShared.h index 2d033e6..5116d1e 100644 --- a/include/private/media/AudioTrackShared.h +++ b/include/private/media/AudioTrackShared.h @@ -20,6 +20,7 @@ #include <stdint.h> #include <sys/types.h> +#include <audio_utils/minifloat.h> #include <utils/threads.h> #include <utils/Log.h> #include <utils/RefBase.h> @@ -48,7 +49,7 @@ namespace android { #define CBLK_STREAM_END_DONE 0x400 // set by server on render completion, cleared by client //EL_FIXME 20 seconds may not be enough and must be reconciled with new obtainBuffer implementation -#define MAX_RUN_OFFLOADED_TIMEOUT_MS 20000 //assuming upto a maximum of 20 seconds of offloaded +#define MAX_RUN_OFFLOADED_TIMEOUT_MS 20000 // assuming up to a maximum of 20 seconds of offloaded struct AudioTrackSharedStreaming { // similar to NBAIO MonoPipe @@ -98,11 +99,7 @@ struct audio_track_cblk_t // The value should be used "for entertainment purposes only", // which means don't make important decisions based on it. - size_t frameCount_; // used during creation to pass actual track buffer size - // from AudioFlinger to client, and not referenced again - // FIXME remove here and replace by createTrack() in/out - // parameter - // renamed to "_" to detect incorrect use + uint32_t mPad1; // unused volatile int32_t mFutex; // event flag: down (P) by client, // up (V) by server or binderDied() or interrupt() @@ -114,11 +111,8 @@ private: // force to 32-bit. The client and server may have different typedefs for size_t. uint32_t mMinimum; // server wakes up client if available >= mMinimum - // Channel volumes are fixed point U4.12, so 0x1000 means 1.0. - // Left channel is in [0:15], right channel is in [16:31]. - // Always read and write the combined pair atomically. - // For AudioTrack only, not used by AudioRecord. - uint32_t mVolumeLR; + // Stereo gains for AudioTrack only, not used by AudioRecord. + gain_minifloat_packed_t mVolumeLR; uint32_t mSampleRate; // AudioTrack only: client's requested sample rate in Hz // or 0 == default. Write-only client, read-only server. @@ -289,8 +283,8 @@ public: mCblk->mSendLevel = uint16_t(sendLevel * 0x1000); } - // caller must limit to 0 <= volumeLR <= 0x10001000 - void setVolumeLR(uint32_t volumeLR) { + // set stereo gains + void setVolumeLR(gain_minifloat_packed_t volumeLR) { mCblk->mVolumeLR = volumeLR; } @@ -409,7 +403,7 @@ public: // return value of these methods must be validated by the caller uint32_t getSampleRate() const { return mCblk->mSampleRate; } uint16_t getSendLevel_U4_12() const { return mCblk->mSendLevel; } - uint32_t getVolumeLR() const { return mCblk->mVolumeLR; } + gain_minifloat_packed_t getVolumeLR() const { return mCblk->mVolumeLR; } // estimated total number of filled frames available to server to read, // which may include non-contiguous frames |