[FFmpeg-devel] Bounties?

Panagiotis Issaris takis.issaris
Thu May 24 08:43:55 CEST 2007


Mike Melanson wrote:
> Piero Bugoni wrote:
>   
>> This sounds fine, but while we are on the subject, and
>> since I do not know, what are the codec and storage
>> parameters used by iPods? Is ffmpeg currently unable
>>     
>
> http://en.wikipedia.org/wiki/Video_ipod
>
>   
>> to produce such output? Is the goal to load and manage
>> the  iPod with ffmpeg, or simply to produce a file
>> that can be loaded on an iPod using iTunes, or some
>> other program?
>>     
>
> Scenario: End user wants to convert random-video-file.avi to a file that 
> will play on his video iPod. We could overload the user with a bunch of 
> jargon about container formats, A/V codecs, maximum bitrates and an 
> endless array of tweakable options.
>
> Or we can just give the user a '-ipod' option that will "do the right 
> thing" (convert to 320x240, chooses the right framerate and bitrate). 
> Or, more likely, '-profile ipod', which will allow for more profiles 
> like PSP, another popular target.
>   

As Victor noted, that was the exact purpose of these patches:

http://article.gmane.org/gmane.comp.video.ffmpeg.devel/37220
http://article.gmane.org/gmane.comp.video.ffmpeg.devel/37244

The idea was that people could then maintain their own website with
different profiles for different devices.

The reason I did not repost the patch yet, is that -if I recall
correctly- for it to work, the AVOptions conversion stuff should be
completed first.

> It may not be quite that easy. Not sure about all the parameters, but 
> there are probably different capability levels for different iPods (ones 
> that support MPEG-4 video and ones that support H.264). But that's the idea.
>
>   
With friendly regards,
Takis




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