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-rw-r--r--include/media/AudioTrack.h5
-rw-r--r--include/media/IAudioTrack.h4
2 files changed, 7 insertions, 2 deletions
diff --git a/include/media/AudioTrack.h b/include/media/AudioTrack.h
index ebb7ef3..453c106 100644
--- a/include/media/AudioTrack.h
+++ b/include/media/AudioTrack.h
@@ -227,6 +227,7 @@ public:
* - INVALID_OPERATION: AudioTrack is already initialized
* - BAD_VALUE: invalid parameter (channelMask, format, sampleRate...)
* - NO_INIT: audio server or audio hardware not initialized
+ * If status is not equal to NO_ERROR, don't call any other APIs on this AudioTrack.
* If sharedBuffer is non-0, the frameCount parameter is ignored and
* replaced by the shared buffer's total allocated size in frame units.
*
@@ -249,7 +250,7 @@ public:
transfer_type transferType = TRANSFER_DEFAULT,
const audio_offload_info_t *offloadInfo = NULL);
- /* Result of constructing the AudioTrack. This must be checked
+ /* Result of constructing the AudioTrack. This must be checked for successful initialization
* before using any AudioTrack API (except for set()), because using
* an uninitialized AudioTrack produces undefined results.
* See set() method above for possible return codes.
@@ -646,7 +647,7 @@ protected:
bool isOffloaded() const
{ return (mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; }
- // may be changed if IAudioTrack is re-created
+ // Next 3 fields may be changed if IAudioTrack is re-created, but always != 0
sp<IAudioTrack> mAudioTrack;
sp<IMemory> mCblkMemory;
audio_track_cblk_t* mCblk; // re-load after mLock.unlock()
diff --git a/include/media/IAudioTrack.h b/include/media/IAudioTrack.h
index 1014403..afac4ae 100644
--- a/include/media/IAudioTrack.h
+++ b/include/media/IAudioTrack.h
@@ -26,6 +26,7 @@
#include <binder/IMemory.h>
#include <utils/LinearTransform.h>
#include <utils/String8.h>
+#include <media/AudioTimestamp.h>
namespace android {
@@ -86,6 +87,9 @@ public:
/* Send parameters to the audio hardware */
virtual status_t setParameters(const String8& keyValuePairs) = 0;
+
+ /* Return NO_ERROR if timestamp is valid */
+ virtual status_t getTimestamp(AudioTimestamp& timestamp) = 0;
};
// ----------------------------------------------------------------------------