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Thumbnails fail to generate for a movie
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Description

When trying to see the thumbnails for https://commons.wikimedia.org/wiki/File:Locomotiv%C4%83_seria_0800_pe_CFB.webm, I get the following error:

``
Error generating thumbnail

Error creating thumbnail: '/usr/bin/ffmpeg' -threads 1 -ss 16385 -y -i 'https://ms-fe.svc.eqiad.wmnet/v1/AUTH_mw/wikipedia-commons-local-public.88/8/88/Locomotiv%C4%83_seria_0800_pe_CFB.webm?temp_url_sig=2619f12ea093daa897ee2155ad9bd612cee018a2&temp_url_expires=1496691052' -ss 3 -s 1920x1080 -f mjpeg -an -vframes 1 '/tmp/transform_e39e61cec9d0.jpg' 2>&1 wgMaxShellMemory: 1048576 ffmpeg version 3.0.2-2~bpo8+1 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 4.9.2 (Debian 4.9.2-10) configuration: --prefix=/usr --extra-version='2~bpo8+1' --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-librubberband --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-chromaprint --enable-libx264 libavutil 55. 17.103 / 55. 17.103 libavcodec 57. 24.102 / 57. 24.102 libavformat 57. 25.100 / 57. 25.100 libavdevice 57. 0.101 / 57. 0.101 libavfilter 6. 31.100 / 6. 31.100 libavresample 3. 0. 0 / 3. 0. 0 libswscale 4. 0.100 / 4. 0.100 libswresample 2. 0.101 / 2. 0.101 libpostproc 54. 0.100 / 54. 0.100 Input #0, matroska,webm, from 'https://ms-fe.svc.eqiad.wmnet/v1/AUTH_mw/wikipedia-commons-local-public.88/8/88/Locomotiv%C4%83_seria_0800_pe_CFB.webm?temp_url_sig=2619f12ea093daa897ee2155ad9bd612cee018a2&temp_url_expires=1496691052': Metadata: encoder : Lavf56.40.101 Duration: 09:06:16.92, start: 32763.746000, bitrate: 3 kb/s Stream #0:0: Audio: vorbis, 44100 Hz, stereo, fltp (default) Stream #0:1: Video: vp8, yuv420p, 1920x1080, SAR 1:1 DAR 16:9, 30 fps, 30 tbr, 1k tbn, 1k tbc (default) [swscaler @ 0x15ec200] deprecated pixel format used, make sure you did set range correctly Output #0, mjpeg, to '/tmp/transform_e39e61cec9d0.jpg': Metadata: encoder : Lavf57.25.100 Stream #0:0: Video: mjpeg, yuvj420p(pc), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 30 fps, 30 tbn, 30 tbc (default) Metadata: encoder : Lavc57.24.102 mjpeg Side data: unknown side data type 10 (24 bytes) Stream mapping: Stream #0:1 -> #0:0 (vp8 (native) -> mjpeg (native)) Press [q] to stop, [?] for help frame= 0 fps=0.0 q=0.0 Lsize= 0kB time=00:00:00.00 bitrate=N/A speed= 0x video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)
``

The file is generated with kdenlive and is correctly reproduced by vlc and the Wikimedia player.

Event Timeline

Strainu created this task.Jun 4 2017, 7:34 PM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptJun 4 2017, 7:34 PM