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Video Playback

 
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schubige



Joined: 24 Jul 2015
Posts: 49
Location: Switzerland

PostPosted: Sat Jan 23, 2016 12:23 am    Post subject: Video Playback Reply with quote

I'm currently working on making Previous more real-time aware (branch_realtime). Until now, timing in Previous was mostly based on (virtual) CPU cycles. Depending on your host hardware, this was either faster or slower than reality. I'm linking now various time sources in the NeXT hardware (such as vertical blank, microsecond timer, sound, etc.) to the host system. Thus time elapsed inside Previous is not only counted in CPU cycles but also in microseconds elapsed in reality.

One of the tests I do is video playback with NEXTTIME. Video playback is a great test because it heavily loads the system (I/O, decoding, sound, pumping video frame to the NeXTdimension, etc) and all that has to be synchronized and happens in real-time.

I'm having troubles with this video http://1drv.ms/1PtSB2b. Audio stops at roughly 1:30 and shortly after, frames start to drop as well.

Could anyone of you who has a real NeXTdimension play that video with NEXTTIME, record it e.g. with a phone-camera directly from the screen and upload/send it to me for comparison, please?

Thanks a lot, Simon
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