[mythtv-users] How to transcode HD recording

John Pilkington J.Pilk at tesco.net
Sat Jan 11 23:30:48 UTC 2014


On 11/01/14 22:24, HP-mini wrote:
> On Sat, 2014-01-11 at 13:07 +0000, John Pilkington wrote:
>> On 11/01/14 12:50, John Pilkington wrote:
>>> On 11/01/14 02:04, HP-mini wrote:
>>>> On Thu, 2014-01-09 at 20:14 +0000, John Pilkington wrote:
>>>>> On 07/01/14 23:29, John Pilkington wrote:
>>>>
>>>> How about a 100MB sample cut from beginning of recording using "dd" ?
>>>>
>>>> The UK freeview H264 HD sample clips (I have here) behave well..my
>>>> seektables had to be generated by mythcommflag..
>>>>
>>>> Broadcast OTA H264 uses intra-refresh so the peak bitrate is
>>>> constrained. All the broadcast samples (I have seen) use this & have
>>>> about 2 sec keyframe intervals.
>>>>
> Actually more like every second... it's the hdpvr that is about 2
> seconds.
>
>>>
>>> http://code.mythtv.org/trac/ticket/12010
>>>
>>> I will attach markup files and a link to a short clip asap.
>>>
>>
>> http://www.mediafire.com/watch/xeufvnx3etw9umi/1104_20140111121300.mpg
>>
> At a glance...
> mythcommflag in master has the same problem (with your sample)..
>
> Can make it work with "-O FFMPEGTS=1" but then cut editor seeking is
> really slow compared to my prodn system.
>
> It works fine (on my prodn system) with
> master(v0.28-pre-467-gf600ddf-dirty) last build on Nov 06 2013 with
> patches.
>

Just tried mythcommflag -O FFMPEGTS=1 --rebuild and got the short list 
again.  ffmpeg -version 0.10,9, myth V0.27-131-g4c12503  SL6 i686



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