diff options
Diffstat (limited to 'media/libnbaio/Pipe.cpp')
-rw-r--r-- | media/libnbaio/Pipe.cpp | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/media/libnbaio/Pipe.cpp b/media/libnbaio/Pipe.cpp index 1c21f9c..6e0ec8c 100644 --- a/media/libnbaio/Pipe.cpp +++ b/media/libnbaio/Pipe.cpp @@ -25,19 +25,22 @@ namespace android { -Pipe::Pipe(size_t maxFrames, NBAIO_Format format) : +Pipe::Pipe(size_t maxFrames, const NBAIO_Format& format, void *buffer) : NBAIO_Sink(format), mMaxFrames(roundup(maxFrames)), - mBuffer(malloc(mMaxFrames * Format_frameSize(format))), + mBuffer(buffer == NULL ? malloc(mMaxFrames * Format_frameSize(format)) : buffer), mRear(0), - mReaders(0) + mReaders(0), + mFreeBufferInDestructor(buffer == NULL) { } Pipe::~Pipe() { ALOG_ASSERT(android_atomic_acquire_load(&mReaders) == 0); - free(mBuffer); + if (mFreeBufferInDestructor) { + free(mBuffer); + } } ssize_t Pipe::write(const void *buffer, size_t count) @@ -52,13 +55,13 @@ ssize_t Pipe::write(const void *buffer, size_t count) if (CC_LIKELY(written > count)) { written = count; } - memcpy((char *) mBuffer + (rear << mBitShift), buffer, written << mBitShift); + memcpy((char *) mBuffer + (rear * mFrameSize), buffer, written * mFrameSize); if (CC_UNLIKELY(rear + written == mMaxFrames)) { if (CC_UNLIKELY((count -= written) > rear)) { count = rear; } if (CC_LIKELY(count > 0)) { - memcpy(mBuffer, (char *) buffer + (written << mBitShift), count << mBitShift); + memcpy(mBuffer, (char *) buffer + (written * mFrameSize), count * mFrameSize); written += count; } } |