Thanks for your fast response. I will try with with the git master next week,
I'm pretty new to FFmpeg but i developped an application which create theses video stream from images. Every video are created with ffmpeg within a custom application, so they all have the same parameters, They play very well in VLC. Meanwhile, please find below the complete console output. ffmpeg -concat -i video_bribes.list -c:v copy -acodec none -movflags faststart -y v_5.mp4 ffmpeg version N-76776-g3c110b0 Copyright (c) 2000-2015 the FFmpeg developers built with gcc 5.2.0 (GCC) configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --ena ble-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --e nable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable- libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --ena ble-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable- libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-lib vo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-li bwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --e nable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib libavutil 55. 8.100 / 55. 8.100 libavcodec 57. 15.100 / 57. 15.100 libavformat 57. 18.100 / 57. 18.100 libavdevice 57. 0.100 / 57. 0.100 libavfilter 6. 15.100 / 6. 15.100 libswscale 4. 0.100 / 4. 0.100 libswresample 2. 0.101 / 2. 0.101 libpostproc 54. 0.100 / 54. 0.100 [mov,mp4,m4a,3gp,3g2,mj2 @ 00c56ca0] Auto-inserting h264_mp4toannexb bitstream f ilter Input #0, concat, from 'video_bribes.list': Duration: N/A, start: 0.000000, bitrate: 898 kb/s Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 898 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc Metadata: handler_name : VideoHandler [mp4 @ 02d607e0] Codec for stream 0 does not use global headers but container fo rmat requires global headers Output #0, mp4, to 'v_5.mp4': Metadata: encoder : Lavf57.18.100 Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1280x720, q =2-31, 898 kb/s, 30 fps, 30 tbr, 15360 tbn, 15360 tbc Metadata: handler_name : VideoHandler Stream mapping: Stream #0:0 -> #0:0 (copy) Press [q] to stop, [?] for help [mov,mp4,m4a,3gp,3g2,mj2 @ 00c56ca0] Auto-inserting h264_mp4toannexb bitstream f ilter [mov,mp4,m4a,3gp,3g2,mj2 @ 0299a0a0] Auto-inserting h264_mp4toannexb bitstream f ilter [mp4 @ 02d607e0] Starting second pass: moving the moov atom to the beginning of the file frame= 1062 fps=0.0 q=-1.0 Lsize= 3905kB time=00:00:35.36 bitrate= 904.6kbits /s video:3897kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.207633% Thanks for your help. -----Message d'origine----- De : ffmpeg-user [mailto:ffmpeg-user-boun...@ffmpeg.org] De la part de Moritz Barsnick Envoyé : jeudi 21 janvier 2016 17:37 À : FFmpeg user discussions Objet : Re: [FFmpeg-user] Concat introduce artifact between streams On Thu, Jan 21, 2016 at 17:29:10 +0100, Moro Alexandre wrote: > ffmpeg.exe -f concat -i clips.list -codec:v copy -acodec none > -movflags faststart -y out.mp4 Please show us the complete, uncut console output. > I use 2.8.2, but i try with different version down to 2.5.2 and > artifact are still here. How about a newer version instead of an older one (though I acknowledge that you could find a regression by going backwards)? git master HEAD is recommended on this list. > - Every media are from the same codec h264. That does not suffice. From the docs: https://www.ffmpeg.org/ffmpeg-formats.html#concat-1 All files must have the same streams (same codecs, same time base, etc.). The duration of each file is used to adjust the timestamps of the next file: if the duration is incorrect (because it was computed using the bit-rate or because the file is truncated, for example), it can cause artifacts. The duration directive can be used to override the duration stored in each file. Cheers, Moritz _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user