#5672: concat demuxer truncates output duration ----------------------------------------+---------------------------------- Reporter: jseeley78 | Type: defect Status: new | Priority: normal Component: ffmpeg | Version: 3.0.2 Keywords: concat demuxer | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------------+---------------------------------- Summary of the bug: The Concat demuxer is truncating output; I didn't start seeing this until moving to version 3.0.2. Normally I'm joining multiple files, but for simplicity the steps below are using the concat demuxer with a single file. The source file is about 90secs, but after running via the concat demuxer the output is only 7secs. ffmpeg lists the error 'concat.txt: Invalid argument' however I am getting a 0 exit code.
How to reproduce: {{{ ffmpeg -f concat -i concat.txt -c copy -y output.flv ffmpeg version 3.0.2 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 4.9.2 (Debian 4.9.2-10) configuration: --prefix=/usr --extra-version=streamme --build- suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --disable-debug --disable-shared --enable-static --extra-cflags=--static --enable-gpl --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- openal --enable-libopus --enable-libpulse --enable-librtmp --enable- libschroedinger --enable-libshine --enable-libsnappy --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-opengl --enable-nonfree --enable-libfdk-aac --enable-libx264 --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv 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 [flv @ 0x3a72620] Auto-inserting h264_mp4toannexb bitstream filter Input #0, concat, from 'concat.txt': Duration: N/A, start: 0.000000, bitrate: 3 kb/s Stream #0:0: Video: h264 (Baseline), yuv420p(tv), 640x360 [SAR 1:1 DAR 16:9], 30.30 fps, 30 tbr, 1k tbn, 60 tbc Stream #0:1: Audio: speex, 16000 Hz, mono, s16, 3 kb/s Output #0, flv, to 'output.flv': Metadata: encoder : Lavf57.25.100 Stream #0:0: Video: h264 ([7][0][0][0] / 0x0007), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=2-31, 30.30 fps, 30 tbr, 1k tbn, 1k tbc Stream #0:1: Audio: speex ([11][0][0][0] / 0x000B), 16000 Hz, mono, 3 kb/s Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Press [q] to stop, [?] for help concat.txt: Invalid argument frame= 150 fps=0.0 q=-1.0 Lsize= 712kB time=00:00:07.37 bitrate= 791.0kbits/s speed= 186x video:702kB audio:4kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.923229% }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/5672> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker _______________________________________________ FFmpeg-trac mailing list FFmpeg-trac@avcodec.org http://ffmpeg.org/mailman/listinfo/ffmpeg-trac