The fact that you've run later versions in production is a good indicator
that we can upgrade with confidence.  If there are no objections to
upgrading, will you be updating the 3rd party tool installation script in
trunk Rüdiger?

Josh

2011/5/5 Rubén Pérez <[email protected]>

> +1 to Rüdiger. I think that most of the problems we experienced in the past
> with ffmpeg were caused because of our lack of experience at using it. I
> think that the operations used in matterhorn are stable enough and they're
> not likely to change between versions.
>
>
> 2011/5/5 Ruediger Rolf <[email protected]>
>
>> I don't think that changing the ffmpeg version is something that need many
>> QA work. For 1.0 and 1.1 we always used a ffmpeg trunk version (to get the
>> -vf option). I have never encountered a problem with the ffmpeg version with
>> matterhorn.
>>
>> By the way the recent versions have a better multi-threading support, just
>> as an additional bonus for switching.
>>
>> Rüdiger
>>
>> Am 04.05.2011 18:33, schrieb Christopher Brooks:
>>
>>  On Wed, 04 May 2011 17:37:51 +0200
>>> Ruediger Rolf<[email protected]>  wrote:
>>>
>>>  Hi list,
>>>>
>>>> in our local 1.1 system we added a new workflow that creates videos
>>>> in different qualities for different internet bandwith:
>>>> http://video.virtuos.uni-osnabrueck.de:8080/engage/ui/watch.html?id=195
>>>> Change the "Quality" setting in the lower right to see the different
>>>> qualities.
>>>>
>>>> We would like to too add this feature to the trunk too, but the
>>>> creation of the different qualities requires a more recent ffmpeg
>>>> version that supports the -vf (video filter) option. With -vf scale
>>>> it is possible use different resolutions for each quality and still
>>>> keep the correct aspect ratio.
>>>>
>>>> I added an additonal workflow definition that encodes the video in
>>>> different qualities. If we keep our ffmpeg version these videos might
>>>> get the wrong aspect ratio if they are not in 4:3 ratio.
>>>>
>>>> Any objections against an update of ffmpeg?
>>>>
>>>> Rüdiger
>>>>
>>>>  I like the idea of upgrading to a newer version, but it means a big qa
>>> effort.....
>>>
>>> Chris
>>>
>>>
>>
>> --
>>
>> ________________________________________________
>> Rüdiger Rolf, M.A.
>> Universität Osnabrück - Zentrum virtUOS
>> Heger-Tor-Wall 12, 49069 Osnabrück
>> Telefon: (0541) 969-6511 - Fax: (0541) 969-16511
>> E-Mail: [email protected]
>> Internet: www.virtuos.uni-osnabrueck.de
>>
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