[Bug 574461] mpeg2dec: Lower rank and make avdec_mpeg2video PRIMARY

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=574461
  GStreamer | gst-plugins-ugly | git

--- Comment #12 from Edward Hervey <bilboed at gmail.com> 2013-07-28 13:25:22 UTC ---
Yah, we really should switch back to having the libav decoder as PRIMARY.
libmpeg2 hasn't been maintained in ... 7 years :(

Items to check before switching:

(In reply to comment #7)
> * on amd64 I'm seeing ffdec_mpeg2video being 10-20% slower than mpeg2dec (on
> any video size)

[FIXED] It's now faster, by 50%.

> * the interlaced format handling in ffmpeg is bad/poor

That is a generic issue (See also bug #687684)

> * the colorspace isn't properly respected (it clamps the values)

Check colorimetry.

> * the timestamping is a mess in ffmpeg to say the least (EVEN after the X-th
> attempt at fixing it in gst-ffmpeg)

[FIXED]

> * mpeg2dec *HAS* a documented exhaustive API

[FIXED]

> * mpeg2dec has always been more resilient to errors.

Debatable nowadays :)

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