[mythtv-users] Mythtranscode and H264?

[Raymond Wagner]

On 5/1/2013 4:55 AM, Paul Gardiner wrote:
> On 01/05/2013 07:36, Kenni Lund wrote:
>>
>> Den 01/05/2013 07.18 skrev "Alexander Puchmayr"
>> <alexander.puchmayr at linznet.at <mailto:alexander.puchmayr at linznet.at>>:
>>  >
>>  > Am Dienstag, 30. April 2013, 14:43:02 schrieb Raymond Wagner:
>>  > > > From: Alexander Puchmayr
>>  > > > Sent: Tuesday, April 30, 2013 2:17 PM
>>  > > >
>>  > > > Mythtranscode (I'm using 0.25) seems to have trouble with H264,
>> when
>>  > > > trying to convert a mpeg-ts with h264 (as received from my
>> cable tv
>>  > > > provider), it failes with
>>  > > >
>>  > > > transcode.cpp:1326 (TranscodeFile) - Unknown video codec: H.264
>>  > > >
>>  > > > Is there a way to transcode material with h264?
>>  > > > Is it supported in 0.26?
>>  > >
>>  > > It _should_ work, but there is really no reason to want to do this.
>>  > > Anything MythTranscode has the ability to transcode into will be
>> larger and
>>  > > lower quality than what you already have.
>>  > >
>>  >
>>  > Removing commercials is reason enough for me to want that ...
>>  >
>>
>> No... As Raymond already said, anything that mythtranscode generates
>> will result in larger files and lower quality.
>
> Unless you use --fifodir mode and run the piped output of mythtranscode
> into ffmpeg. That way you can choose exactly the format you want, and
> if smaller files is what you are after then scaling down to 720p30
> (or 720p60 for 1080i source) a good option.

The raw, frameserver output of --fifodir will be vastly larger than any 
input file you may have fed to mythtranscode.