[FFmpeg-devel] [PATCH] Set pixel aspect ratio for libxvid encoder

Robert Swain robert.swain
Tue Jan 15 16:58:18 CET 2008


On 15/01/2008, M?ns Rullg?rd <mans at mansr.com> wrote:
> If you thing xvid is so superior, then use it, not FFmpeg.  Wrapping
> every codec under the sun is not the purpose of FFmpeg.  There are
> other apps, e.g. mencoder, doing this task just fine.

I think we should probably try to consolidate and clarify our goals
for the project as some are a little hazy. Here's what I think is

FFmpeg aims to offer a set of libraries providing codec
implementations, container support, audio and video filtering and
probably more.

We aim to support as many formats as possible. Where open source
implementations for formats exist, wrappers will be acceptable if the
existing offerings:
- can not be significantly improved upon
- are well maintained
- can not be reimplemented with a relatively small amount of work

Otherwise we will try to have our own, better, maintained implementation.

If an implementation of a format is offered that satisfies the
aforementioned conditions but has been developed anyway, it will not
be refused if it reaches the required standard for inclusion in

Or to use Kostya's more concise wording:

"FFmpeg preys on weak, unmaintained or closed-source codecs. If your
library does not meet those requirements, ffmpeg won't consume it (and
will use a wrapper if it is good one)."


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