long CoreAudioEncoder::inputDataProc(UInt32 *npackets, AudioBufferList *abl)
{
prepareInputBuffer(abl, *npackets);
AudioBuffer &ab = abl->mBuffers[0];
try {
*npackets = readSamples(ab.mData, *npackets);
} catch (...) {
/* treat as EOF */
*npackets = 0;
}
ab.mDataByteSize = *npackets * m_input_desc.mBytesPerFrame;
if (*npackets == 0)
ab.mData = 0;
return 0;
}
bool EncodeInputSurface::init(const char* inputFileName, uint32_t fourcc, int width, int height)
{
m_width = width;
m_height = height;
int surfaceWidth = width;
int surfaceHeight = height;
static sp<SurfaceComposerClient> client = new SurfaceComposerClient();
//create surface
static sp<SurfaceControl> surfaceCtl = client->createSurface(String8("testsurface"),
surfaceWidth, surfaceHeight, HAL_PIXEL_FORMAT_NV12_Y_TILED_INTEL, 0);
DEBUG("create surface with size %dx%d, format: 0x%x", surfaceWidth, surfaceHeight, HAL_PIXEL_FORMAT_NV12_Y_TILED_INTEL);
// configure surface
SurfaceComposerClient::openGlobalTransaction();
surfaceCtl->setLayer(100000);
surfaceCtl->setPosition(100, 100);
surfaceCtl->setSize(surfaceWidth, surfaceHeight);
SurfaceComposerClient::closeGlobalTransaction();
m_surface = surfaceCtl->getSurface();
mNativeWindow = m_surface;
int bufWidth = width;
int bufHeight = height;
int ret;
INFO("set buffers geometry %dx%d\n", width, height);
ret = native_window_set_buffers_dimensions(GET_ANATIVEWINDOW(mNativeWindow), width, height);
CHECK_RET(ret, "native_window_set_buffers_dimensions");
uint32_t format = HAL_PIXEL_FORMAT_NV12_Y_TILED_INTEL;
INFO("set buffers format %x\n", format);
ret = native_window_set_buffers_format(GET_ANATIVEWINDOW(mNativeWindow), format);
CHECK_RET(ret, "native_window_set_buffers_format");
INFO("set buffer usage\n");
ret = native_window_set_usage(GET_ANATIVEWINDOW(mNativeWindow),
GRALLOC_USAGE_HW_VIDEO_ENCODER | GRALLOC_USAGE_HW_TEXTURE);
CHECK_RET(ret, "native_window_set_usage");
INFO("set buffer count %d\n", m_bufferCount);
ret = native_window_set_buffer_count(GET_ANATIVEWINDOW(mNativeWindow), m_bufferCount);
CHECK_RET(ret, "native_window_set_buffer_count");
prepareInputBuffer();
return true;
}
long CoreAudioEncoder::inputDataProc(UInt32 *npackets, AudioBufferList *abl)
{
prepareInputBuffer(abl, *npackets);
AudioBuffer &ab = abl->mBuffers[0];
try {
#if defined(_MSC_VER) && defined(_DEBUG)
_CrtCheckMemory();
#endif
*npackets = m_src->readSamples(ab.mData, *npackets);
#if defined(_MSC_VER) && defined(_DEBUG)
_CrtCheckMemory();
#endif
} catch (...) {
return -39; // eofError
}
if (*npackets == 0) {
ab.mData = 0;
ab.mDataByteSize = 0;
} else
ab.mDataByteSize = *npackets * m_input_desc.mBytesPerFrame;
m_stat.updateRead(*npackets);
return 0;
}