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• ffmpeg failing to expand drawtext

  26 novembre 2015, par charlie80

  I am trying to overlay a seconds:milliseconds timestamp on my video, but I have been breaking my head over this for some hours without any result. If I write :

  ffmpeg -f lavfi -i testsrc=duration=5:size=800x600:rate=30 -vf drawtext="fontfile=C\\:/Windows/Fonts/arial.ttf:text='%{pts}': x=(w-tw)/2: y=h-(2*lh): fontcolor=white: box=1: boxcolor=0x00000000@1" -preset ultrafast output.mp4

  the %{pts} does not get expanded, and only shows the literal text {pts} on the frame.

  Please note that I have read a ton of guides around the web (ffmpeg docs/guides/wikis, stackoverflow, blogs, etc.) on this timestamp overlay stuff, but none of the solutions/syntaxes work : it simply overlays the literal text.

  Some context :

  • using Windows 7x64 and TCC/LE
  • ffmpeg Zeranoe build version git-12a419d (2015-11-23)

  The full output log :

  [E:\]ffmpeg -f lavfi -i testsrc=duration=5:size=800x600:rate=30 -vf drawtext="fontfile=C\\:/Windows/Fonts/arial.ttf:text=%{pts}: x=(w-tw)/2: y=h-(2*lh): fontcolor=white: box=1: boxcolor=0x00000000@1" -preset ultrafast output.mp4
  
  ffmpeg version N-76822-g12a419d Copyright (c) 2000-2015 the FFmpeg developers
  
    built with gcc 5.2.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-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 --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
  
    libavutil      55.  9.100 / 55.  9.100
  
    libavcodec     57. 16.100 / 57. 16.100
  
    libavformat    57. 19.100 / 57. 19.100
  
    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
  
  Input #0, lavfi, from 'testsrc=duration=5:size=800x600:rate=30':
  
    Duration: N/A, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 800x600 [SAR 1:1 DAR 4:3], 30 tbr, 30 tbn, 30 tbc
  
  File 'output.mp4' already exists. Overwrite ? [y/N] y
  
  No pixel format specified, yuv444p for H.264 encoding chosen.
  
  Use -pix_fmt yuv420p for compatibility with outdated media players.
  
  [libx264 @ 00000000003f83c0] using SAR=1/1
  
  [libx264 @ 00000000003f83c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64 SlowShuffle
  
  [libx264 @ 00000000003f83c0] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit
  
  [libx264 @ 00000000003f83c0] 264 - core 148 r2638 7599210 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=6 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
  
  Output #0, mp4, to 'output.mp4':
  
    Metadata:
  
      encoder         : Lavf57.19.100
  
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p, 800x600 [SAR 1:1 DAR 4:3], q=-1--1, 30 fps, 15360 tbn, 30 tbc
  
      Metadata:
  
        encoder         : Lavc57.16.100 libx264
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  frame=  150 fps= 61 q=-1.0 Lsize=     185kB time=00:00:05.00 bitrate= 303.2kbits/s
  
  video:184kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.755086%
  
  [libx264 @ 00000000003f83c0] frame I:1     Avg QP:20.00  size: 18409
  
  [libx264 @ 00000000003f83c0] frame P:149   Avg QP:16.11  size:  1135
  
  [libx264 @ 00000000003f83c0] mb I  I16..4: 100.0%  0.0%  0.0%
  
  [libx264 @ 00000000003f83c0] mb P  I16..4:  0.7%  0.0%  0.0%  P16..4:  5.1%  0.0%  0.0%  0.0%  0.0%    skip:94.2%
  
  [libx264 @ 00000000003f83c0] coded y,u,v intra: 5.0% 3.3% 2.8% inter: 1.1% 1.0% 0.9%
  
  [libx264 @ 00000000003f83c0] i16 v,h,dc,p: 81%  6%  2% 11%
  
  [libx264 @ 00000000003f83c0] kb/s:299.93
  
  
  
  [E:\]

• Piwik analytics database : migrating from MySQL to MariaDB

  11 novembre 2015, par Piwik Core Team — Meta

  This short blog post is an announcement regarding the Piwik technology stack.

  Piwik compatible with MySQL and MariaDB

  Since our first public release Piwik uses the open source database server MySQL to store the analytics data.

  Piwik is also compatible with MariaDB. MariaDB is an enhanced, drop-in replacement for MySQL.

  Upgrading to MariaDB

  Many users from our community as well as Piwik Scalability Experts have confirmed that using MariaDB for Piwik has several advantages. MariaDB has in some cases significantly improved query performance and reliability of Piwik. Because MariaDB 5.5 is a complete drop-in-replacement for MySQL 5.5, upgrading can be as easy as running apt-get install mariadb-server (or equivalent for your platform). Existing third party techologies such as TokuDB (FAQ) and Galera are fully compatible with MariaDB.

  Learn more about upgrading to MariaDB : Upgrading from MySQL to MariaDB

  In the future, Piwik will stay compatible with both MySQL and MariaDB.

• FFmpeg destroys my Images

  14 septembre 2015, par dazzafact

  Rightnow iam trying to render a Video reading my image Folder with about 83 Images. Iam using this FFMPEG Snip :

   ffmpeg -f image2   -i images/*.jpg  -b 450k -r 30  zoom100.avi  2>&1

  But iam really frustrated, FFMPEG always replace all my Images with the first Image. And The video it also creates me is about 2 Frames long
  Here the FFMPEF Feedback

  ffmpeg version 0.8.17-4:0.8.17-0ubuntu0.12.04.1, Copyright (c) 2000-2014 the Libav developers
  
    built on Mar 16 2015 13:26:50 with gcc 4.6.3
  
  The ffmpeg program is only provided for script compatibility and will be removed
  
  in a future release. It has been deprecated in the Libav project to allow for
  
  incompatible command line syntax improvements in its replacement called avconv
  
  (see Changelog for details). Please use avconv instead.
  
  Input #0, image2, from 'images/0750.jpg':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
  
      Stream #0.0: Video: mjpeg, yuvj420p, 1280x1280 [PAR 72:72 DAR 1:1], 25 tbr, 25 tbn, 25 tbc
  
  [buffer @ 0x24a4220] w:1280 h:1280 pixfmt:yuvj420p
  
  [buffer @ 0x24a4a00] w:1280 h:1280 pixfmt:yuvj420p
  
  [buffer @ 0x24a52c0] w:1280 h:1280 pixfmt:yuvj420p
  
  [buffer @ 0x24a5b20] w:1280 h:1280 pixfmt:yuvj420p
  
  .....
  
  .....
  
  .....
  
  .....
  
  .....
  
  .....
  
  
  
  [buffer @ 0x24d4320] w:1280 h:1280 pixfmt:yuvj420p
  
  Incompatible pixel format 'yuvj420p' for codec 'mpeg4', auto-selecting format 'yuv420p'
  
  [buffer @ 0x24d03c0] w:1280 h:1280 pixfmt:yuvj420p
  
  [avsink @ 0x24ceea0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
  
  [scale @ 0x24cc460] w:1280 h:1280 fmt:yuvj420p -> w:1280 h:1280 fmt:yuv420p flags:0x4
  
  Output #0, image2, to 'images/0751.jpg':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #0.0: Video: mjpeg, yuvj420p, 1280x1280 [PAR 72:72 DAR 1:1], q=2-31, 200 kb/s, 90k tbn, 25 tbc
  
  Output #1, image2, to 'images/0752.jpg':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #1.0: Video: mjpeg, yuvj420p, 1280x1280 [PAR 72:72 DAR 1:1], q=2-31, 200 kb/s, 90k tbn, 25 tbc
  
  Output #2, image2, to 'images/0753.jpg':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #2.0: Video: mjpeg, yuvj420p, 1280x1280 [PAR 72:72 DAR 1:1], q=2-31, 200 kb/s, 90k tbn, 25 tbc
  
      ....
  
      ....
  
      ....
  
      ....
  
  Output #82, image2, to 'images/0833.jpg':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #82.0: Video: mjpeg, yuvj420p, 1280x1280 [PAR 72:72 DAR 1:1], q=2-31, 200 kb/s, 90k tbn, 25 tbc
  
  Output #83, avi, to 'zoom100.avi':
  
    Metadata:
  
      ISFT            : Lavf53.21.1
  
      Stream #83.0: Video: mpeg4, yuv420p, 1280x1280 [PAR 1:1 DAR 1:1], q=2-31, 450 kb/s, 30 tbn, 30 tbc
  
  Stream mapping:
  
    Stream #0.0 -> #0.0
  
    Stream #0.0 -> #1.0
  
    Stream #0.0 -> #2.0
  
    Stream #0.0 -> #3.0
  
    Stream #0.0 -> #4.0
  
      ....
  
      ....
  
  
  
    Stream #0.0 -> #80.0
  
    Stream #0.0 -> #81.0
  
    Stream #0.0 -> #82.0
  
    Stream #0.0 -> #83.0
  
  Press ctrl-c to stop encoding
  
  frame=    1 fps=  0 q=7.0 Lq=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=6.5 size=      -0kB time=0.03 bitrate=  -5.3kbits/s    
  
  video:16698kB audio:0kB global headers:0kB muxing overhead -100.000129%