#3337: ffmpeg cannot convert videos created with Virtual Box --------------------------------------+---------------------------------- Reporter: basinilya | Type: defect Status: new | Priority: normal Component: undetermined | Version: 2.1.3 Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | --------------------------------------+---------------------------------- I've captured a .webm video with vbox. It plays fine and I'm trying to convert it to .avi. But ffmpeg prints a warning and produces a video containing just one frame. {{{ ffmpeg -i win2003-wc-2014-01-21T08-50-31-513188200Z.webm win2003-wc-2014-01-21T08-50-31-513188200Z.avi ffmpeg version 2.1.3 Copyright (c) 2000-2013 the FFmpeg developers built on Jan 15 2014 20:51:13 with gcc 4.8.2 (GCC) 20131219 (prerelease) configuration: --prefix=/usr --disable-debug --disable-static --enable- avresample --enable-dxva2 --enable-fontconfig --enable-gnutls --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable- libpulse --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libv4l2 --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-pic --enable-postproc --enable- runtime-cpudetect --enable-shared --enable-swresample --enable-vdpau --enable-version3 --enable-x11grab libavutil 52. 48.101 / 52. 48.101 libavcodec 55. 39.101 / 55. 39.101 libavformat 55. 19.104 / 55. 19.104 libavdevice 55. 5.100 / 55. 5.100 libavfilter 3. 90.100 / 3. 90.100 libavresample 1. 1. 0 / 1. 1. 0 libswscale 2. 5.101 / 2. 5.101 libswresample 0. 17.104 / 0. 17.104 libpostproc 52. 3.100 / 52. 3.100 Input #0, matroska,webm, from 'win2003-wc-2014-01-21T08-50-31-513188200Z.webm': Duration: 20:53:05.71, start: 0.000000, bitrate: 2 kb/s Stream #0:0(eng): Video: vp8, yuv420p, 1024x768, SAR 1:1 DAR 4:3, 30 fps, 30 tbr, 1k tbn, 1k tbc (default) File 'win2003-wc-2014-01-21T08-50-31-513188200Z.avi' already exists. Overwrite ? [y/N] y Output #0, avi, to 'win2003-wc-2014-01-21T08-50-31-513188200Z.avi': Metadata: ISFT : Lavf55.19.104 Stream #0:0(eng): Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 1024x768 [SAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 30 tbn, 30 tbc (default) Stream mapping: Stream #0:0 -> #0:0 (vp8 -> mpeg4) Press [q] to stop, [?] for help [avi @ 0x1cefa20] Too large number of skipped frames 2244170 > 60000 av_interleaved_write_frame(): Invalid argument }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/3337> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker