FindKeyFrame
status_t FindKeyFrame(int32 stream, uint32 seekTo,
virtual status_t FindKeyFrame(void* cookie, uint32 flags,
virtual status_t FindKeyFrame(void* cookie, uint32 flags,
return cookie->FindKeyFrame(flags, frame, time);
status_t FindKeyFrame(uint32 flags, int64* frame,
virtual status_t FindKeyFrame(void* cookie, uint32 flags,
return fReader->FindKeyFrame(info.cookie, seekTo, _frame, _time);
status_t result = fExtractor->FindKeyFrame(fStream, flags, &frame, _time);
status_t result = fExtractor->FindKeyFrame(fStream, flags, _frame, &time);