Could not find codec parameters for stream 0 (Video: webp, none): unspecified size

[Tiago Ferezin]

Summary of the bug:
How to reproduce:

% ffmpeg -probesize 10M -analyzeduration 10M -i input.mp4 -t 00:00:15 -vf "movie=giphy.webp [watermark]; [in][watermark] overlay=main_w-overlay_w-5:main_h-overlay_h-5 [out]" -strict -2 output.mp4
ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv

ffmpeg

like command below running on ubuntu

ffmpeg -probesize 10M -analyzeduration 10M -i input.mp4 -t 00:00:15 -vf "movie=giphy.webp [watermark]; [in][watermark] overlay=main_w-overlay_w-5:main_h-overlay_h-5 [out]" -strict -2 output.mp4

return in log this:

[webp @ 0x247e160] image data not found
[webp_pipe @ 0x247d180] decoding for stream 0 failed
[webp_pipe @ 0x247d180] Could not find codec parameters for stream 0 (Video: webp, none): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[Parsed_movie_0 @ 0x247cea0] Failed to find stream info
Impossible to convert between the formats supported by the filter 'Parsed_movie_0' and the filter 'auto-inserted scaler 0'
Error opening filters!

[Carl Eugen Hoyos]

Please test current FFmpeg git head and provide the command line you tested together with the complete, uncut console output and the input sample to make this a valid ticket.