Package: ffmpeg Version: 7:2.8.6-1+b1 Severity: normal Hello,
I have encoded a video as VP9 using ffmpeg with the following settings and I am unable to seek forward in the video (tested with mpv and ffplay). ``` ffmpeg -i raw/00040.MTS -c:v libvpx-vp9 -b:v 3500K -threads 8 -speed 1 -tile-columns 6 -frame-parallel 1 -auto-alt-ref 1 -lag-in-frames 25 -c:a libopus -b:a 64k -f webm 00040_1pass.webm ``` The output I get from ffplay: ``` ffplay version 2.8.6-1+b1 Copyright (c) 2003-2016 the FFmpeg developers built with gcc 5.3.1 (Debian 5.3.1-8) 20160205 configuration: --prefix=/usr --extra-version=1+b1 --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 --enabl e-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv libavutil 54. 31.100 / 54. 31.100 libavcodec 56. 60.100 / 56. 60.100 libavformat 56. 40.101 / 56. 40.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 40.101 / 5. 40.101 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.101 / 1. 2.101 libpostproc 53. 3.100 / 53. 3.100 Input #0, matroska,webm, from '00040_1pass.webm': sq= 0B f=0/0 Metadata: encoder : Lavf56.40.101 Duration: 00:01:44.68, start: 0.007000, bitrate: 2594 kb/s Stream #0:0: Video: vp9 (Profile 0), yuv420p(tv), 1920x1080, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 1k tbn, 1k tbc (default) Stream #0:1: Audio: opus, 48000 Hz, 5.1, fltp (default) [matroska,webm @ 0x7fe7d4009240] seek_frame_generic failed as this stream seems to contain no keyframes after the target timestamp, 1002 non keyframes found [matroska,webm @ 0x7fe7d4009240] seek_frame_generic failed as this stream seems to contain no keyframes after the target timestamp, 1002 non keyframes found 00040_1pass.webm: error while seeking ``` You can find the file here: https://gir.me.uk/files/tmp/20160223-ffmpeg_bug/00040_1pass.webm Thanks, George -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.3.0-1-amd64 (SMP w/8 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages ffmpeg depends on: ii libavcodec-ffmpeg56 7:2.8.6-1+b1 ii libavdevice-ffmpeg56 7:2.8.6-1+b1 ii libavfilter-ffmpeg5 7:2.8.6-1+b1 ii libavformat-ffmpeg56 7:2.8.6-1+b1 ii libavresample-ffmpeg2 7:2.8.6-1+b1 ii libavutil-ffmpeg54 7:2.8.6-1+b1 ii libc6 2.21-9 ii libpostproc-ffmpeg53 7:2.8.6-1+b1 ii libsdl1.2debian 1.2.15+dfsg1-2 ii libswresample-ffmpeg1 7:2.8.6-1+b1 ii libswscale-ffmpeg3 7:2.8.6-1+b1 ii libvdpau1 1.1.1-3 ii libx11-6 2:1.6.3-1 ffmpeg recommends no packages. Versions of packages ffmpeg suggests: pn ffmpeg-doc <none> -- no debconf information