[x264-devel] Any control over NAL sizes?

Patrick White patrick.white at magorcorp.com
Thu Feb 10 18:17:40 CET 2011


Hi Dennis,

There is indeed a parameter to change, in the x264_param_t struct, the "i_slice_max_size" variable.

There are also related options for macro-blocks and slices.

Cheers,
Patrick

On 2011-02-10, at 12:13 PM, Dennis Munsie wrote:

> I didn't see anything pop out at me in the x264.h file, but is there any control over NAL sizes exposed in the library? Something like setting a target NAL size based on the available payload in a UDP packet, for example.  So instead of having to take one NAL and split it over N packets, the NALs would have an upper limit and the encoder would output variable sized slices to hit that limit and each NAL would fit in a packet.
> 
> In this case, I'm only talking about slice (type 1) and IDR slice (type 5) NALs -- I'm not concerned about any of the others.
> 
> thanks!
> dennis
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