status_t
BMediaFormats::RewindFormats()
{
if (!sLock.IsLocked() || sLock.LockingThread() != find_thread(NULL)) {
// TODO: Shouldn't we simply drop into the debugger in this case?
return B_NOT_ALLOWED;
}
fIteratorIndex = 0;
return B_OK;
}
status_t
BMediaFormats::GetNextFormat(media_format* _format,
media_format_description* _description)
{
if (!sLock.IsLocked() || sLock.LockingThread() != find_thread(NULL)) {
// TODO: Shouldn't we simply drop into the debugger in this case?
return B_NOT_ALLOWED;
}
if (fIteratorIndex == 0) {
// This is the first call, so let's make sure we have current data to
// operate on.
status_t status = update_media_formats();
if (status < B_OK)
return status;
}
meta_format* format = sFormats.ItemAt(fIteratorIndex++);
if (format == NULL)
return B_BAD_INDEX;
return B_OK;
}
