> > > "Variable and constant bit rate up to 15 Mb/sec" under Features and > > Benefits / Video Encoding > > > > At the moment the cx18 still reports 27 Mbps as the max in v4l2-ctl > > -L, which I think is just a carry over from the earlier 15/16 chip. > > Just wanted to flag it before it slipped my mind. > > > I put it low on the list, because mucking with those means more > regression testing than normal to make sure I didn't screw up the ivtv, > pvrusb2, cx88, or cx23885 drivers, as they all call out to those too > (IIRC). > > I suspected that might be the case, just wanted to mention it before I forgot.
In a similar vein, we were doing some testing with VBR versus CBR last night and noticed that the current structure, which I believe is also carried over from ivtv, does not allow changing the bitrate on the fly. However, the chip does allow changing the bitrate on the fly, but changing that will also create regression issues potentially. However, that being said, I used to be able to change the BR on the fly with ivtv and some time in the last year or so it changed so you could not write that while the device was in use. Not sure why that was done, perhaps for a different device in the same family? -Jeff
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