[mythtv-users] Android Mythfrontend on Chromebook

Stephen Worthington stephen_agent at jsw.gen.nz
Wed May 18 05:48:04 UTC 2022


On Tue, 17 May 2022 21:57:24 +0000, you wrote:

>On Tue, May 17, 2022 at 9:49 PM Ken Mandelberg <km at mathcs.emory.edu> wrote:
>
>> All my recordings are from Xfinity, and it turns out almost all of those
>> in recent years are in 720. If I go quite a few years back into my
>> recordings, Xfinity had them in 1080 and those do run ok. Now that I
>> look harder there are in fact some newly recorded ones from a nostalgia
>> channel that are in 1080 and they do play.
>
>Check the encoding.  (Pretty much) all the newer
>720p's are going to be MPEG4, and at least some
>of the older recordings are likely MPEG2.
>
>Some hardware (or the OS) may report it supports
>codecs that they do not actually properly support
>(so the result is either hangs/black screens, or
>bad visual artifacts).  Chromebooks all over the
>place in terms of proper support (even when
>the hardware supports the codes, the OS version
>may not).  Some vendors have a list of known
>devices that they override the selection for
>(and fall back to software decode, which itself
>may not work if the processor is not sufficiently
>capable).

TV programmes that are 1080 are usually 1080i, and deinterlacing is
always a problem on any except the best GPUs.  If it has to be done on
the CPU, you will likely need to select a lower mode that the CPU can
cope with.


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