[mythtv-users] Build of Android Mythfrontend

[Peter Bennett]

On 1/11/22 9:01 AM, James Abernathy wrote:
>
>
> On Mon, Jan 10, 2022 at 9:16 PM James Abernathy <jfabernathy at gmail.com 
> <mailto:jfabernathy at gmail.com>> wrote:
>
>
>
>     On Mon, Jan 10, 2022 at 9:11 PM Gary Buhrmaster
>     <gary.buhrmaster at gmail.com <mailto:gary.buhrmaster at gmail.com>> wrote:
>
>         On Tue, Jan 11, 2022 at 1:19 AM Peter Bennett
>         <pb.mythtv at gmail.com <mailto:pb.mythtv at gmail.com>> wrote:
>
>         >
>         > I don't have a 4k max, but it should have better performance
>         than the 4k, not worse.
>
>         I do not have any Fire devices (for reasons), but on other
>         forums it has been stated that the 4K Max (but not the 4K)
>         has some issues (with MPEG2 decode) that require one
>         to use software playback for (at least) some types of content.
>
>
>     That meshes with what I've found.  I set the Max to OpenGL 4CPUs
>     Low Quality Deinterlace and the picture is great if you don't
>     skip. In fact on the regular FireTV 4K I do the same and it's a
>     little poorer picture, but usable.  However, You can skip all you
>     want.
>
>     Jim A
>
>
> I did some testing on the FireTV 4K Max this morning and This included 
> Android Medicodec. MediaCodec is definitely worse on MPEG2 content. 
> The Max will not play a video with sound unless the Audio Read Ahead 
> is at least 800.  If you try to skip forward it will fail on the first 
> skip.  With Read Ahead set to 1000, you might get 2 skips, with Read 
> Ahead at 2000, you might get 2 or 3 before the FPS goes to 40 or 50 
> instead of 30.
>
> I did a factory reset on the MAX and only install mythfrontend and the 
> results were the same.  All of this was on the V32 version.
>
> If there is something wrong with my MAX it doesn not affect playing 
> Prime Video at 4K or Leanfront on v32 content.
>
> Peter, I can capture any log you want or you can email me directly and 
> we can see how I can loan you my Max for testing?
>
> I'm going to switch back to my FireTV 4K regular and continue testing 
> there. I also have a Shield TV (2017) to test with.
>
> Jim A
>
>
Actually I am not using mythfrontend on android at the moment, just 
building it and posting the package when necessary. There was some 
problem with the ffmpeg interface to mediacodec that affected mpeg2 on 
the fire stick. I do not remember if that was ever resolved. Perhaps 
there are other problems with it now. Since leanfront works fine, 
mediacodec must be ok. Leanfront only uses mediacodec, it does not have 
a software decode method for video.

The problem with skipping on mythfrontend - does if affect recordings 
and videos the same? Recordings have a seek table on the database to 
speed up jumps, videos do not (unless you have done something to delete, 
change or create a seek table). When there is a seek table mythfrontend 
uses that to skip. When there is no seek table it uses ffmpeg to skip.

At some point I may get a fire stick 4K Max but I do not have time to 
deal with it now.

Peter

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