// Implementation of FilterThread
FilterThread::FilterThread(Filter* filter, int32 i, int32 n, bool runInCurrentThread)
: fFilter(filter)
, fI(i)
, fN(n)
{
if (runInCurrentThread) {
Run();
} else {
thread_id tid;
tid = spawn_thread(worker_thread, "filter", suggest_thread_priority(B_STATUS_RENDERING), this);
if (tid >= 0) {
resume_thread(tid);
} else {
delete this;
}
}
}
status_t
TVideoPreviewView::Connected(
const media_source & producer,
const media_destination & where,
const media_format & with_format,
media_input* out_input)
{
FUNCTION("TVideoPreviewView::Connected()\n");
out_input->node = Node();
out_input->source = mProducer = producer;
out_input->destination = mDestination;
out_input->format = with_format;
sprintf(out_input->name, "TVideoPreviewView");
mXSize = with_format.u.raw_video.display.line_width;
mYSize = with_format.u.raw_video.display.line_count;
mRowBytes = with_format.u.raw_video.display.bytes_per_row;
mColorspace = with_format.u.raw_video.display.format;
mBufferAvailable = create_sem (0, "Video buffer available");
if (mBufferAvailable < B_NO_ERROR) {
ERROR("TVideoPreviewView: couldn't create semaphore\n");
return B_ERROR;
}
mBufferQueue = new BTimedBufferQueue();
// Create offscreen
if (m_Bitmap == NULL) {
m_Bitmap = new BBitmap(BRect(0, 0, (mXSize-1), (mYSize - 1)), mColorspace, false, false);
}
if (vThread == 0) {
mDisplayQuit = false;
int drawPrio = suggest_thread_priority(B_VIDEO_PLAYBACK, 30, 1000, 5000);
PROGRESS("Suggested draw thread priority: %d\n", drawPrio);
vThread = spawn_thread(vRun, "TVideoPreviewView:draw", drawPrio, this);
resume_thread(vThread);
}
mConnected = true;
return B_OK;
}