Gimp's webp output

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racer-x

Post subject: Gimp's webp output

Posted: Sun Jun 25, 2023 4:25 pm (#1)

GimpChat Member

Joined: Apr 15, 2017
Posts: 1826

I believe there is a problem with Gimp's WebP animation output. It's a hit or miss when upload to FireFox and it reports errors when imported into ffmpeg.

Code: Select all

[webp @ 0x55a7067f2980] skipping unsupported chunk: ANIM
[webp @ 0x55a7067f2980] skipping unsupported chunk: ANMF
    Last message repeated 17 times
[webp @ 0x55a7067f2980] skipping unsupported chunk: XMP 
[webp @ 0x55a7067f2980] image data not found
[webp_pipe @ 0x55a7067f0740] decoding for stream 0 failed
[webp_pipe @ 0x55a7067f0740] Could not find codec parameters for stream 0 (Video: webp, none): 
unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, webp_pipe, from '/home/racer/Downloads/Gimp-versions/Frog.webp':
  Duration: N/A, bitrate: N/A
  Stream #0:0: Video: webp, none, 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (webp (native) -> gif (native))
Press [q] to stop, [?] for help
[webp @ 0x55a706848fc0] skipping unsupported chunk: ANIM
[webp @ 0x55a706848fc0] skipping unsupported chunk: ANMF
    Last message repeated 17 times
[webp @ 0x55a706848fc0] skipping unsupported chunk: XMP 
[webp @ 0x55a706848fc0] image data not found
Error while decoding stream #0:0: Invalid data found when processing input
Cannot determine format of input stream 0:0 after EOF
Error marking filters as finished

Now, if I exported and encode with ffmpeg to webp, no such errors occur. Not sure why??

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Tas_mania

Post subject: Re: Gimp's webp output

Posted: Sun Jun 25, 2023 6:32 pm (#2)