[FFmpeg-trac] #328(undetermined:open): PGM to JPEG-LS identify error

FFmpeg trac at avcodec.org
Mon Jul 4 09:56:06 CEST 2011

#328: PGM to JPEG-LS identify error
Reporter:  sebastian0   |       Owner:  michael
    Type:  defect       |      Status:  open
Priority:  normal       |   Component:  undetermined
 Version:  unspecified  |  Resolution:
Keywords:               |  Blocked By:
Blocking:               |  Reproduced:  0
Analyzed:  0            |

Comment (by sebastian0):

 Yes, tested it with very latest HEAD-git-version this morning, and... it
 still failes.
 I am worry about the identify output.

 I have an university project with a JPEG-LS implementation (en/decrypt)
 which is only able to work with gray (pgm) images.
 So I tried to interchange with ffmpeg, but it seems incompatible at all.
 Encode a pgm to jpeg-ls with ffmpeg and tried to decode it back with my
 source code from university, it failed all the time.

 So my current tasks was actually, to implement color images (ppm), but I
 do not know how. ;(

 So is this actually a ffmpeg bug, or simply the "they do not work
 together" note? :/

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/328#comment:2>
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