[mythtv-users] problem with playback of hd recordings

[Nick Rout]

On Mon, Feb 2, 2009 at 7:58 AM, Bert Haverkamp <bert at bertenselena.net> wrote:
>
>
> 2009/2/1 Gareth Glaccum <gareth.glaccum at btopenworld.com>
>>
>> >I'm building a new  mythtv box, for recording dvb-c.
>> >The  mainboard is a Gigabyte GA-EG45M-DS2H  and I use a Intel Core 2 Duo
>> > E7200 (2.53Ghz)
>> >The mythfrontend.real process shows over 100% cpu load and the playback
>> > freezes every few seconds.
>> >Other 1080p content plays smoothly at a much lower cpu load.
>> What other 1080p content and how are you testing it?
>
> I'm using  "ffmpeg -i filename" to get the file information.
> Some other 1080 files are:
>
>  Duration: 01:37:25.6, start: 0.000000, bitrate: N/A
>     Stream #0.0(eng): Video: h264, yuv420p, 1920x800 [PAR 1:1 DAR 12:5],
> 23.98 tb(r)
>     Stream #0.1(eng): Audio: dca, 48000 Hz, 5:1
>     Stream #0.2(eng): Subtitle: 0x0000
>
> and
>
> Duration: 02:02:32.3, start: 600.000000, bitrate: 16062 kb/s
>   Program 1
>     Stream #0.0[0x1011]: Video: h264, yuv420p, 1920x800 [PAR 1:1 DAR 12:5],
> 23.98 tb(r)
>     Stream #0.1[0x1100]: Audio: liba52, 48000 Hz, 5:1, 640 kb/s
>
> With the last one, which has the highest bitrate, CPU for instance is
> between 60 and 70%, but playback is smooth.
>
> The recording is
>
>   Duration: 00:59:53.0, start: 88885.258133, bitrate: 12658 kb/s
>   Program 1
>     Stream #0.0[0xc82](eng): Audio: liba52, 48000 Hz, 5:1, 384 kb/s
>     Stream #0.1[0xc85](dut): Audio: mp2, 48000 Hz, stereo, 192 kb/s
>     Stream #0.2[0xc8a]: Video: h264, yuv420p, 1920x1080 [PAR 1:1 DAR 16:9],
> 25.00 tb(r)
>
> on the recording, both mythtv and xine barf with to high bitrate.
> mplayer outputs a warning:
> MBAFF + spatial direct mode is not implemented
> Is that any indication?

yes your mplayer (or maybe ffmpeg or libavcodec) is not up to date
enough to do MBAFF encoded video.

update, but I am not sure where from as you don't mention distro.