[Bug 556648] [typefind] detect lossless jpeg
bugzilla at gnome.org
Tue Apr 26 13:30:22 PDT 2011
GStreamer | gst-plugins-base | git
--- Comment #12 from Philip Jägenstedt <philipj at opera.com> 2011-04-26 20:30:20 UTC ---
Created an attachment (id=186687)
typefind: extract profile (SOF) in jpeg typefinder (integer)
The profiles are given in the spec numerically as SOF0-SOF15 (sans 4,8,12).
Simply using this makes things much easier, we avoid the need for any
int<->string mappings at all, as the strings won't be very pretty anyway. Are
there objections to this approach?
Exposing the correct values on jpegdec and ffdec_mjpeg should be easy enough,
but what is the correct way to do this in demuxers? Is it to update all
demuxers to plug a typefinder for image/jpeg, or is it to make sure that
jpegparse is autoplugged and then replaced? What I want is for my AVI files
made with ffenc_ljpeg to work with decodebin2, so any pointers on what code is
likely to be accepted in code review would be helpful.
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