C++ (Cpp) MediaBuffer::reset Examples

Example #1

File: MediaBufferGroup.cpp Project: AOSP-JF/platform_frameworks_av

status_t MediaBufferGroup::acquire_buffer(
        MediaBuffer **out, bool nonBlocking) {
    Mutex::Autolock autoLock(mLock);

    for (;;) {
        for (MediaBuffer *buffer = mFirstBuffer;
             buffer != NULL; buffer = buffer->nextBuffer()) {
            if (buffer->refcount() == 0) {
                buffer->add_ref();
                buffer->reset();

                *out = buffer;
                goto exit;
            }
        }

        if (nonBlocking) {
            *out = NULL;
            return WOULD_BLOCK;
        }

        // All buffers are in use. Block until one of them is returned to us.
        mCondition.wait(mLock);
    }

exit:
    return OK;
}