On 06.12.13 21:49, John Q wrote:
> Which H264 parameters does ffmpeg use to produce a stream with
> higher resolution, higher frame rate but same bitrate?
> Or what is the relationship between resolution, frame rate
> and bit rate?
>
> Any input is much appreciated.
Probably not quite your question but pjsua uses "vid codec size", "vid
codec fps" and "vid codec bitrate" for these parameters (which are at
some point passed to ffmpeg).
Where is your priority, do you want to transmit a
1. larger picture?
2. better picture (in respect to compression artefacts)?
3. fluent motion?
For 1 increase frame size, for 2 increase bitrate, for 3 increase fps.
Having an upper bound on network bandwidth, increasing something can
obviously only happen at the expense of decreasing something else.
Eeri Kask
