#8598: Drawtext displays incorrect timecode -------------------------------------+------------------------------------- Reporter: aalexgabi | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: drawtext, | Blocked By: timecode | Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: Drawtext with timecode option writes incorrect second number for a given frame. How to reproduce: {{{ ffmpeg -filter_complex "testsrc=size=200x100:r=1000/70[testsrc];[testsrc]drawtext=timecode='00\:00\:00\:00':r=1000/70:fontsize=32:y=4:x=4[timecode];sine=frequency=1000[audio]" -map '[timecode]' -map '[audio]' -pix_fmt yuv420p -t 3.5 -y testsrc- timecode-200x100@14.28-3.5s-sine.mp4 ffmpeg -i testsrc-timecode-200x100@14.28-3.5s-sine.mp4 frame%04d.png }}} Frame 29 that is displayed between 1960ms and 2030ms has the timecode: 00:00:02:00 Documentation says vaguely that "value" (no idea what value it talks about) is rounded: {{{ timecode_rate, rate, r Set the timecode frame rate (timecode only). Value will be rounded to nearest integer. Minimum value is "1". Drop-frame timecode is supported for frame rates 30 & 60. }}} Regardless of what the documentation says I think this is incorrect Version: {{{ % ffmpeg -version ffmpeg version n4.2.2 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9.2.1 (Arch Linux 9.2.1+20200130-2) 20200130 configuration: --prefix=/usr --disable-debug --disable-static --disable- stripping --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libjack --enable-libmfx --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable- libpulse --enable-libsoxr --enable-libspeex --enable-libssh --enable- libtheora --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-nvdec --enable- nvenc --enable-omx --enable-shared --enable-version3 libavutil 56. 31.100 / 56. 31.100 libavcodec 58. 54.100 / 58. 54.100 libavformat 58. 29.100 / 58. 29.100 libavdevice 58. 8.100 / 58. 8.100 libavfilter 7. 57.100 / 7. 57.100 libswscale 5. 5.100 / 5. 5.100 libswresample 3. 5.100 / 3. 5.100 libpostproc 55. 5.100 / 55. 5.100 }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/8598> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker