[mythtv-users] HTTP Live Stream Quality

[Byron Poland]

On Mon, May 14, 2012 at 5:50 PM, Chris Pinkham <cpinkham at bc2va.org> wrote:

> * On Sun May 13, 2012 at 10:28:54PM -0400, Byron Poland wrote:
> > Following up on this -  After changing the  "c->level                 =
> > 13;" line to "c->level                 = 31;" in the avformatwritter.cpp
> > file and recompiling, the baseline is now reporting 3.1 from myth and the
> > HLS stream looks great on my iPad.
> >
> > Is there any hope to getting this changed in the 0.26 or fixes/0.25?
>
> Can you test the following patch?
>
> http://pastebin.ca/2148415
>
> Something will definitely go into 0.26, but to get into fixes/0.25, it
> will need to be pretty non-invasive, so checking for low resolution and
> bitrate as in this patch should be pretty safe.
>
> This is based on the presets in the ffpresets directory and should use
> the following in this order:
>
> - Main 4.1 for anything with a width of over 1000 pixels (ie, iPad, etc.)
> - Main 3.1 for anything with a width of over 960 pixels (ie, iPhone 4/4s)
> - Baseline 1.3 for anything <= 320x240 and 768K bitrate
> - Baseline 3.0 for anything else
>
> This is a quick patch, and hasn't been tested on any of my devices yet
> (iPhone 3/3G, iPod Touch 2g, Android Tablet w/ Honeycomb).  Perhaps this
> will fix my Android issue, I'll try to test that tonight.
>
> --
> Chris



Thanks for the patch.

I was able to apply this and playing around with a few tests, and running
the ts files through mediainfo.. shows the stream doing pretty much as you
describe... Baseline based on the chosen size.
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