[MPlayer-dev-eng] QuickTime

[ktolis]

On Wednesday, Sep 18, 2002, at 22:31 Europe/Athens, D Richard Felker 
III wrote:

> On Wed, Sep 18, 2002 at 09:23:15PM +0300, ktolis wrote:
>>> Using the entire framework is silly; you might as well just use
>>> Apple's junky player. There have already been efforts to load just 
>>> the
>>> needed stuff for Quicktime and call into it directly, but it's hard
>>> work reverse engineering the interface. Read the archives for info:
>>>
>> i didn't mean the whole api just the calls required to decode the
>> frames. so reading would be done in mplayer, the frame converted to a
>> QT compatible format and the decoded data sent back to mplayer to be
>> displayed through any available display module. I was talking only on
>> the decoding mechanism but using the api and not by reverse
>> engineering. Wouldn't it be easier?
>
> If Apple provided this, yes, it would be much easier. However, they do
> not, because they're proprietary scum. So if you want to use just the
> codec without all their other mess, you have to reverse engineer the
> libraries and find out how to make the calls to the codecs yourself.
See Arpi's last post in qt-codecs-porting list and you will see that it 
is easier than reverse engineering. It just needs a little patience

>
>>> Huh? You don't need quicktime or some proprietary Apple lib for DVD,
>>> it's just mpeg2. MPlayer already has both libmpeg2 and libavcodec
>>> which can decode mpeg2. If DVD support isn't working on OSX, it's a
>>> matter of the DVD reading code not being ready, NOT a codec issue.
>> It IS working under OSX it is just not *accelerated*. In specific it 
>> is
>> not being able to use acceleration for the most important parts:
>>
>> libmpeg2: No accelerated IDCT transform found
>> libmpeg2: No accelerated motion compensation found
>>
>> it would be a nice feature if libmpeg2 would support those things 
>> under
>> OSX but even better if the altivec or hardware accelerated version of
>> the mpeg2 lib supported by the os itself could be used.
>
> Try -vc ffmpeg12. I think there are some altivec optimizations in
> libavcodec, so it might be faster.
>
i got a G3 (non-altivec) like many many people...

> Rich
>
ktolis