[Live-devel] Problem with fMaxSize after signalNewFrame() for live source

[Ross Finlayson]

> I'm writing an application that encodes screen capture (using MS media foundation h264 encoder) and transmits it via RTSP using liveMedia.
> 
> I've written a wrapper for interfacing with the encoder (based on DeviceSource.cpp).
> When the encoding starts,  maxFrameSize eventually grows to BANK_SIZE

This implies that (in your “createNewStreamSource()” implementation) you are feeding incoming H.264 NAL units to a “ H264VideoStreamFramer”.  That is wrong; “H264VideoStreamFramer” is used only when reading a H.264 file as a byte stream.

If your encoder “FramedSource” subclass is delivering discrete H.264 NAL units (i.e., one NAL unit at a time), then you must feed it into a “H264VideoStreamDiscreteFramer”, *not* a “H264VideoStreamFramer”.  (Also, each NAL unit that you feed into the “H264VideoStreamDiscreteFramer” must *not* begin with a ‘start code’ (0x00 0x00 0x00 0x01).)


Ross Finlayson
Live Networks, Inc.
http://www.live555.com/

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