[Kdenlive-devel] project profile matching

[Dan Dennedy]

On Sun, Sep 19, 2010 at 6:42 PM, Dan Dennedy <dan at dennedy.org> wrote:
> I noticed some recent commits to suggest a matching profile for the
> first clip added.
> I just noticed that it does not appear to checking aspect ratio.
> Therefore, for DV or DVD and similar SD sources, it does not pickup
> anamorphic widescreen. I tried to take a look at commit 4907 to see
> what you are doing, but, man, that is so littered with unrelated
> changes I lacked the patience to look through it.
>
> I want you to  know that I have a branch in MLT where I am doing
> auto-profile, and I have added some new properties that you might want
> to use. I do not have details at the moment, but I will make some
> available when I merge it.

Not yet merged, but here is more info. These new properties reflect
MLT's "cooked" values that represent the detected media properties by
taking into consideration heuristics between the muxer and codec
values, selected stream indexes, and overrides (e.g. force_fps):

meta.media.sample_aspect_num=1
meta.media.sample_aspect_den=1
meta.media.frame_rate_num=30
meta.media.frame_rate_den=1
meta.media.width=1280
meta.media.height=720
meta.media.top_field_first=0
meta.media.progressive=1

However, they are not guaranteed to be set and final until you at
least get_frame(), get_image(), and get_frame() one more time. This is
what melt will do to generate an automatic profile when none is
provided.

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