[FFmpeg-trac] #10969(undetermined:new): animated webp cannot be processed by ffmpeg or ffplay

[FFmpeg]

#10969: animated webp cannot be processed by ffmpeg or ffplay
-------------------------------------+-------------------------------------
             Reporter:  rabcor       |                     Type:  defect
               Status:  new          |                 Priority:  critical
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  webp ffplay  |               Blocked By:
  anim                               |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 ffmpeg fails to read animated webp files. (Sample File:
 [https://mathiasbynens.be/demo/animated-webp-supported.webp])

 Gives errors:
 {{{
 [webp @ 0x7b87000020c0] skipping unsupported chunk: ANIM 0B
 [webp @ 0x7b87000020c0] skipping unsupported chunk: ANMF
 [webp @ 0x7b87000020c0] image data not found
 }}}

 == How to reproduce:
 {{{
 ffplay any-animated.webp
 #or
 ffmpeg -i any-animated.webp output.anyformat
 }}}


 == Other Info:
 ffmpeg -version:
 {{{
 ffmpeg version N-114897-gbba996d6cd Copyright (c) 2000-2024 the FFmpeg
 developers
 built with gcc 13.2.1 (GCC) 20230801
 configuration: --prefix=/usr --disable-debug --disable-static --disable-
 stripping --disable-htmlpages --enable-amf --enable-avisynth --enable-
 cuda-llvm --enable-lto --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-
 libbluray --enable-libbs2b --enable-libdav1d --enable-libdrm --enable-
 libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883
 --enable-libjack --enable-libjxl --enable-libmodplug --enable-libmp3lame
 --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg
 --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librav1e
 --enable-librsvg --enable-libsoxr --enable-libspeex --enable-libsrt
 --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2
 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpl
 --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265
 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg
 --enable-nvdec --enable-nvenc --enable-opencl --enable-opengl --enable-
 shared --enable-version3 --enable-vulkan
 libavutil      59. 15.100 / 59. 15.100
 libavcodec     61.  5.103 / 61.  5.103
 libavformat    61.  3.100 / 61.  3.100
 libavdevice    61.  2.100 / 61.  2.100
 libavfilter    10.  2.101 / 10.  2.101
 libswscale      8.  2.100 /  8.  2.100
 libswresample   5.  2.100 /  5.  2.100
 libpostproc    58.  2.100 / 58.  2.100
 }}}

 ffmpeg -v 9 -loglevel 99 -i animated-webp-supported.webp:
 {{{
 Splitting the commandline.
 Reading option '-v' ... matched as option 'v' (set logging level) with
 argument '9'.
 Reading option '-loglevel' ... matched as option 'loglevel' (set logging
 level) with argument '99'.
 Reading option '-i' ... matched as input url with argument 'animated-webp-
 supported.webp'.
 Finished splitting the commandline.
 Parsing a group of options: global .
 Applying option v (set logging level) with argument 9.
 Successfully parsed a group of options.
 Parsing a group of options: input url animated-webp-supported.webp.
 Successfully parsed a group of options.
 Opening an input file: animated-webp-supported.webp.
 [AVFormatContext @ 0x59fb643aa980] Opening 'animated-webp-supported.webp'
 for reading
 [file @ 0x59fb6436bb40] Setting default whitelist 'file,crypto,data'
 Probing image2 score:50 size:2048
 Probing mp3 score:1 size:2048
 Probing webp_pipe score:99 size:2048
 [webp_pipe @ 0x59fb643aa980] Format webp_pipe probed with size=2048 and
 score=99
 [webp_pipe @ 0x59fb643aa980] Before avformat_find_stream_info() pos: 0
 bytes read:32768 seeks:0 nb_streams:1
 [webp @ 0x59fb643abb40] skipping unsupported chunk: ANIM
 [webp @ 0x59fb643abb40] skipping unsupported chunk: ANMF
     Last message repeated 11 times
 [webp @ 0x59fb643abb40] image data not found
 [webp_pipe @ 0x59fb643aa980] stream 0: start_time: NOPTS duration: NOPTS
 [webp_pipe @ 0x59fb643aa980] format: start_time: NOPTS duration: NOPTS
 (estimate from bit rate) bitrate=0 kb/s
 [webp_pipe @ 0x59fb643aa980] Could not find codec parameters for stream 0
 (Video: webp, 1 reference frame, none): unspecified size
 Consider increasing the value for the 'analyzeduration' (0) and
 'probesize' (5000000) options
 [webp_pipe @ 0x59fb643aa980] After avformat_find_stream_info() pos: 37342
 bytes read:37342 seeks:0 frames:1
 Input #0, webp_pipe, from 'animated-webp-supported.webp':
   Duration: N/A, bitrate: N/A
   Stream #0:0, 1, 1/25: Video: webp, 1 reference frame, none, 25 fps, 25
 tbr, 25 tbn
 Successfully opened the file.
 At least one output file must be specified
 [AVIOContext @ 0x59fb643b3000] Statistics: 37342 bytes read, 0 seeks
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10969>
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