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• Notes on Linux for Dreamcast

  23 février 2011, par Multimedia Mike — Sega Dreamcast, VP8

  I wanted to write down some notes about compiling Linux on Dreamcast (which I have yet to follow through to success). But before I do, allow me to follow up on my last post where I got Google’s libvpx library decoding VP8 video on the DC. Remember when I said the graphics hardware could only process variations of RGB color formats ? I was mistaken. Reading over some old documentation, I noticed that the DC’s PowerVR hardware can also handle packed YUV textures (UYVY, specifically) :

  
  
  

  The video looks pretty sharp in the small photo. Up close, less so, due to the low resolution and high quantization of the test vector combined with the naive chroma upscaling. For the curious, the grey box surrounding the image highlights the 256-square texture that the video frame gets plotted on. Texture dimensions have to be powers of 2.

  Notes on Linux for Dreamcast
  I’ve occasionally dabbled with Linux on my Dreamcast. There’s an ancient (circa 2001) distro based around a build of kernel 2.4.5 out there. But I wanted to try to get something more current compiled. Thus far, I have figured out how to cross compile kernels pretty handily but have been unsuccessful in making them run.

  Here are notes are the compilation portion :
  

  • kernel.org provides a very useful set of cross compiling toolchains
  • get the gcc 4.5.1 cross toolchain for SH-4 (the gcc 4.3.3 one won’t work because the binutils is too old ; it will fail to assemble certain instructions as described in this post)
  • working off of Linux kernel 2.6.37, edit the top-level Makefile ; find the ARCH and CROSS_COMPILE variables and set appropriately :

    ARCH ?= sh
    CROSS_COMPILE ?= /path/to/gcc-4.5.1-nolibc/sh4-linux/bin/sh4-linux-
    

  • $ make dreamcast_defconfig
  • $ make menuconfig ... if any changes to the default configuration are desired
  • manually edit arch/sh/Makefile, changing :

    cflags-$(CONFIG_CPU_SH4) := $(call cc-option,-m4,) \
            $(call cc-option,-mno-implicit-fp,-m4-nofpu)
    

    to :

    cflags-$(CONFIG_CPU_SH4) := $(call cc-option,-m4,) \
            $(call cc-option,-mno-implicit-fp)
    

    I.e., remove the '-m4-nofpu' option. According to the gcc man page, this will "Generate code for the SH4 without a floating-point unit." Why this is a default is a mystery since the DC’s SH-4 has an FPU and compilation fails when enabling this option.

  • On that note, I was always under the impression that the DC sported an SH-4 CPU with the model number SH7750. According to this LinuxSH wiki page as well as the Linux kernel help, it actually has an SH7091 variant. This photo of the physical DC hardware corroborates the model number.
  • $ make ... to build a Linux kernel for the Sega Dreamcast

  Running
  So I can compile the kernel but running the kernel (the resulting vmlinux ELF file) gives me trouble. The default kernel ELF file reports an entry point of 0x8c002000. Attempting to upload this through the serial uploading facility I have available to me triggers a system reset almost immediately, probably because that’s the same place that the bootloader calls home. I have attempted to alter the starting address via ’make menuconfig’ -> System type -> Memory management options -> Physical memory start address. This allows the upload to complete but it still does not run. It’s worth noting that the 2.4.5 vmlinux file from the old distribution can be executed when uploaded through the serial loader, and it begins at 0x8c210000.

• merge 4 videos and put audio in different tracks/channels

  4 septembre 2013, par Gijserman

  I'm pretty new to ffmpeg, so I'm having a bit of a struggle.

  I have found a way to merge 4 videos into one side-by-side video grid (2x2) with following code :

  ffmpeg -y -i vid1.mp4 -i vid2.mp4 -i vid3.mp4 -i vid4.mp4 -filter_complex "[0:0]pad=iw*2:ih*2[a];[1:0]null[b];[2:0]null[c];[3:0]null[d];[a][b]overlay=w[x];[x][c]overlay=0:h[y];[y][d]overlay=w:h" multiple_input_grid.mp4

  What I would like to do is distribute the audio of each video as follows

  • Audio from vid1 to audiotrack 1 -> left channel
  • Audio from vid2 to audiotrack 1 -> right channel
  • Audio from vid3 to audiotrack 2 -> left channel
  • Audio from vid4 to audiotrack 2 -> right channel

  So multiple_input_grid.mp4 will have 2 audio tracks with different left/right audio

  Is there a way of doing this in ffmpeg ?

  Thanks

  The command I'm using (this should have 4 different sources, but has 4x the same) :

  C:\Users\Gijs\Documents\ffmpeg-20130820-git-68b63a3-win64-static\bin>ffmpeg -y -
  
  i VIDEO0050.mp4 -i VIDEO0050.mp4 -i VIDEO0050.mp4 -i VIDEO0050.mp4 -filter_compl
  
  ex "[0:0]pad=iw*2:ih*2[a];[1:0]null[b];[2:0]null[c];[3:0]null[d];[a][b]overlay=w
  
  [x];[x][c]overlay=0:h[y];[y][d]overlay=w:h" multiple_input_grid.mp4

  Output :

  ffmpeg version N-55644-g68b63a3 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Aug 19 2013 20:32:00 with gcc 4.7.3 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
  
  isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
  
  le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
  
  e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
  
  ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
  
  ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
  
  eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-
  
  amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --
  
  enable-libxvid --enable-zlib
  
    libavutil      52. 42.100 / 52. 42.100
  
    libavcodec     55. 28.100 / 55. 28.100
  
    libavformat    55. 13.103 / 55. 13.103
  
    libavdevice    55.  3.100 / 55.  3.100
  
    libavfilter     3. 82.100 /  3. 82.100
  
    libswscale      2.  5.100 /  2.  5.100
  
    libswresample   0. 17.103 /  0. 17.103
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'VIDEO0050.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 0
  
      compatible_brands: isom3gp4
  
      creation_time   : 2013-08-13 13:32:27
  
    Duration: 00:00:28.35, start: 0.000000, bitrate: 5298 kb/s
  
      Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yu
  
  v420p, 720x1280, 5001 kb/s, SAR 65536:65536 DAR 9:16, 29.40 fps, 30.17 tbr, 90k
  
  tbn, 180k tbc
  
      Metadata:
  
        creation_time   : 2013-08-13 13:32:27
  
        handler_name    : VideoHandle
  
      Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 95 k
  
  b/s
  
      Metadata:
  
        creation_time   : 2013-08-13 13:32:27
  
        handler_name    : SoundHandle
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'VIDEO0050.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 0
  
      compatible_brands: isom3gp4
  
      creation_time   : 2013-08-13 13:32:27
  
    Duration: 00:00:28.35, start: 0.000000, bitrate: 5298 kb/s
  
      Stream #1:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yu
  
  v420p, 720x1280, 5001 kb/s, SAR 65536:65536 DAR 9:16, 29.40 fps, 30.17 tbr, 90k
  
  tbn, 180k tbc
  
      Metadata:
  
        creation_time   : 2013-08-13 13:32:27
  
        handler_name    : VideoHandle
  
      Stream #1:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 95 k
  
  b/s
  
      Metadata:
  
        creation_time   : 2013-08-13 13:32:27
  
        handler_name    : SoundHandle
  
  Input #2, mov,mp4,m4a,3gp,3g2,mj2, from 'VIDEO0050.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 0
  
      compatible_brands: isom3gp4
  
      creation_time   : 2013-08-13 13:32:27
  
    Duration: 00:00:28.35, start: 0.000000, bitrate: 5298 kb/s
  
      Stream #2:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yu
  
  v420p, 720x1280, 5001 kb/s, SAR 65536:65536 DAR 9:16, 29.40 fps, 30.17 tbr, 90k
  
  tbn, 180k tbc
  
      Metadata:
  
        creation_time   : 2013-08-13 13:32:27
  
        handler_name    : VideoHandle
  
      Stream #2:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 95 k
  
  b/s
  
      Metadata:
  
        creation_time   : 2013-08-13 13:32:27
  
        handler_name    : SoundHandle
  
  Input #3, mov,mp4,m4a,3gp,3g2,mj2, from 'VIDEO0050.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 0
  
      compatible_brands: isom3gp4
  
      creation_time   : 2013-08-13 13:32:27
  
    Duration: 00:00:28.35, start: 0.000000, bitrate: 5298 kb/s
  
      Stream #3:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yu
  
  v420p, 720x1280, 5001 kb/s, SAR 65536:65536 DAR 9:16, 29.40 fps, 30.17 tbr, 90k
  
  tbn, 180k tbc
  
      Metadata:
  
        creation_time   : 2013-08-13 13:32:27
  
        handler_name    : VideoHandle
  
      Stream #3:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 95 k
  
  b/s
  
      Metadata:
  
        creation_time   : 2013-08-13 13:32:27
  
        handler_name    : SoundHandle
  
  [libx264 @ 0000000002788fc0] using SAR=1/1
  
  [libx264 @ 0000000002788fc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
  AVX
  
  [libx264 @ 0000000002788fc0] profile High, level 5.0
  
  [libx264 @ 0000000002788fc0] 264 - core 135 r2345 f0c1c53 - H.264/MPEG-4 AVC cod
  
  ec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 r
  
  ef=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed
  
  _ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pski
  
  p=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 deci
  
  mate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_
  
  adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=2
  
  5 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.6
  
  0 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to 'multiple_input_grid.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 0
  
      compatible_brands: isom3gp4
  
      encoder         : Lavf55.13.103
  
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1440x2
  
  560 [SAR 1:1 DAR 9:16], q=-1--1, 11584 tbn, 30.17 tbc
  
      Stream #0:1(eng): Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 44100
  
  Hz, mono, s16, 128 kb/s
  
      Metadata:
  
        creation_time   : 2013-08-13 13:32:27
  
        handler_name    : SoundHandle
  
  Stream mapping:
  
    Stream #0:0 (h264) -> pad (graph 0)
  
    Stream #1:0 (h264) -> null (graph 0)
  
    Stream #2:0 (h264) -> null (graph 0)
  
    Stream #3:0 (h264) -> null (graph 0)
  
    overlay (graph 0) -> Stream #0:0 (libx264)
  
    Stream #0:1 -> #0:1 (aac -> libvo_aacenc)
  
  Press [q] to stop, [?] for help
  
  frame=   19 fps=0.0 q=0.0 size=       0kB time=00:00:00.94 bitrate=   0.4kbits/s
  
  frame=   42 fps= 41 q=0.0 size=       0kB time=00:00:01.64 bitrate=   0.2kbits/s
  
  frame=   46 fps= 23 q=0.0 size=       0kB time=00:00:01.76 bitrate=   0.2kbits/s
  
  frame=   54 fps= 21 q=29.0 size=     179kB time=00:00:01.99 bitrate= 735.9kbits/
  
  frame=   58 fps= 19 q=29.0 size=     338kB time=00:00:02.22 bitrate=1245.2kbits/
  
  frame=   65 fps= 17 q=29.0 size=     546kB time=00:00:02.34 bitrate=1908.9kbits/
  
  frame=   73 fps= 16 q=29.0 size=     778kB time=00:00:02.57 bitrate=2476.6kbits/
  
  frame=   80 fps= 16 q=29.0 size=     927kB time=00:00:02.92 bitrate=2599.0kbits/
  
  frame=   85 fps= 15 q=29.0 size=    1089kB time=00:00:02.92 bitrate=3053.5kbits/
  
  frame=   91 fps= 14 q=29.0 size=    1268kB time=00:00:03.15 bitrate=3293.1kbits/
  
  frame=   99 fps= 14 q=29.0 size=    1481kB time=00:00:03.50 bitrate=3462.3kbits/
  
  frame=  107 fps= 14 q=29.0 size=    1666kB time=00:00:03.73 bitrate=3653.1kbits/
  
  frame=  115 fps= 14 q=29.0 size=    1898kB time=00:00:03.96 bitrate=3919.8kbits/
  
  frame=  123 fps= 13 q=29.0 size=    2121kB time=00:00:04.19 bitrate=4137.0kbits/
  
  frame=  130 fps= 13 q=29.0 size=    2267kB time=00:00:04.43 bitrate=4190.3kbits/
  
  frame=  135 fps= 13 q=29.0 size=    2428kB time=00:00:04.66 bitrate=4265.3kbits/
  
  frame=  143 fps= 13 q=29.0 size=    2625kB time=00:00:04.89 bitrate=4392.4kbits/
  
  frame=  149 fps= 13 q=29.0 size=    2783kB time=00:00:05.01 bitrate=4548.5kbits/
  
  frame=  155 fps= 13 q=29.0 size=    2984kB time=00:00:05.36 bitrate=4560.0kbits/
  
  frame=  163 fps= 13 q=29.0 size=    3195kB time=00:00:05.59 bitrate=4680.1kbits/
  
  frame=  171 fps= 13 q=29.0 size=    3396kB time=00:00:05.82 bitrate=4776.1kbits/
  
  frame=  179 fps= 13 q=29.0 size=    3573kB time=00:00:06.05 bitrate=4832.0kbits/
  
  frame=  186 fps= 13 q=29.0 size=    3785kB time=00:00:06.28 bitrate=4929.5kbits/
  
  frame=  192 fps= 13 q=29.0 size=    3949kB time=00:00:06.52 bitrate=4960.0kbits/
  
  frame=  200 fps= 13 q=29.0 size=    4150kB time=00:00:06.75 bitrate=5033.0kbits/
  
  frame=  206 fps= 13 q=29.0 size=    4306kB time=00:00:06.87 bitrate=5134.7kbits/
  
  frame=  212 fps= 12 q=29.0 size=    4513kB time=00:00:07.21 bitrate=5121.3kbits/
  
  frame=  220 fps= 12 q=29.0 size=    4707kB time=00:00:07.45 bitrate=5175.1kbits/
  
  frame=  228 fps= 12 q=29.0 size=    4918kB time=00:00:07.68 bitrate=5244.0kbits/
  
  frame=  235 fps= 12 q=29.0 size=    5068kB time=00:00:07.91 bitrate=5245.4kbits/
  
  frame=  241 fps= 12 q=29.0 size=    5249kB time=00:00:08.14 bitrate=5277.5kbits/
  
  frame=  248 fps= 12 q=29.0 size=    5444kB time=00:00:08.37 bitrate=5321.9kbits/
  
  frame=  256 fps= 12 q=29.0 size=    5666kB time=00:00:08.61 bitrate=5390.4kbits/
  
  frame=  264 fps= 12 q=29.0 size=    5869kB time=00:00:08.84 bitrate=5436.2kbits/
  
  frame=  268 fps= 12 q=29.0 size=    5976kB time=00:00:09.07 bitrate=5393.6kbits/
  
  frame=  276 fps= 12 q=29.0 size=    6201kB time=00:00:09.30 bitrate=5457.8kbits/
  
  frame=  284 fps= 12 q=29.0 size=    6416kB time=00:00:09.54 bitrate=5509.1kbits/
  
  frame=  292 fps= 12 q=29.0 size=    6622kB time=00:00:09.77 bitrate=5551.1kbits/
  
  frame=  297 fps= 12 q=29.0 size=    6744kB time=00:00:10.00 bitrate=5521.7kbits/
  
  frame=  306 fps= 12 q=29.0 size=    7125kB time=00:00:10.23 bitrate=5701.5kbits/
  
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  frame=  337 fps= 12 q=29.0 size=    8025kB time=00:00:11.28 bitrate=5827.0kbits/
  
  frame=  342 fps= 12 q=29.0 size=    8191kB time=00:00:11.39 bitrate=5887.2kbits/
  
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  frame=  372 fps= 12 q=29.0 size=    9100kB time=00:00:12.44 bitrate=5991.4kbits/
  
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  frame=  382 fps= 12 q=29.0 size=    9435kB time=00:00:12.79 bitrate=6042.7kbits/
  
  frame=  389 fps= 12 q=29.0 size=    9633kB time=00:00:13.02 bitrate=6059.2kbits/
  
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  frame=  405 fps= 12 q=29.0 size=   10104kB time=00:00:13.48 bitrate=6137.0kbits/
  
  frame=  412 fps= 12 q=29.0 size=   10289kB time=00:00:13.83 bitrate=6091.8kbits/
  
  frame=  417 fps= 12 q=29.0 size=   10465kB time=00:00:13.95 bitrate=6144.6kbits/
  
  frame=  424 fps= 12 q=29.0 size=   10691kB time=00:00:14.18 bitrate=6174.5kbits/
  
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  frame=  434 fps= 12 q=29.0 size=   11068kB time=00:00:14.41 bitrate=6289.4kbits/
  
  frame=  441 fps= 12 q=29.0 size=   11281kB time=00:00:14.76 bitrate=6258.8kbits/
  
  frame=  448 fps= 12 q=29.0 size=   11507kB time=00:00:14.99 bitrate=6285.4kbits/
  
  frame=  453 fps= 12 q=29.0 size=   11713kB time=00:00:15.11 bitrate=6348.8kbits/
  
  frame=  460 fps= 12 q=29.0 size=   11936kB time=00:00:15.34 bitrate=6372.2kbits/
  
  frame=  464 fps= 12 q=29.0 size=   12124kB time=00:00:15.57 bitrate=6375.6kbits/
  
  frame=  471 fps= 12 q=29.0 size=   12394kB time=00:00:15.80 bitrate=6422.1kbits/
  
  frame=  474 fps= 12 q=29.0 size=   12519kB time=00:00:15.80 bitrate=6486.8kbits/
  
  frame=  481 fps= 12 q=29.0 size=   12790kB time=00:00:16.04 bitrate=6531.2kbits/
  
  frame=  488 fps= 12 q=29.0 size=   13020kB time=00:00:16.27 bitrate=6553.7kbits/
  
  frame=  493 fps= 11 q=29.0 size=   13261kB time=00:00:16.50 bitrate=6581.2kbits/
  
  frame=  499 fps= 11 q=29.0 size=   13430kB time=00:00:16.73 bitrate=6572.9kbits/
  
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  frame=  544 fps= 11 q=29.0 size=   15172kB time=00:00:18.13 bitrate=6854.6kbits/
  
  frame=  553 fps= 11 q=29.0 size=   15667kB time=00:00:18.48 bitrate=6945.0kbits/
  
  frame=  558 fps= 11 q=29.0 size=   15829kB time=00:00:18.59 bitrate=6972.8kbits/
  
  frame=  564 fps= 11 q=29.0 size=   16067kB time=00:00:18.82 bitrate=6990.6kbits/
  
  frame=  570 fps= 11 q=29.0 size=   16264kB time=00:00:18.94 bitrate=7033.1kbits/
  
  frame=  576 fps= 11 q=29.0 size=   16530kB time=00:00:19.29 bitrate=7019.1kbits/
  
  frame=  582 fps= 11 q=29.0 size=   16754kB time=00:00:19.40 bitrate=7071.5kbits/
  
  frame=  588 fps= 11 q=29.0 size=   17015kB time=00:00:19.64 bitrate=7096.9kbits/
  
  frame=  595 fps= 11 q=29.0 size=   17255kB time=00:00:19.87 bitrate=7112.8kbits/
  
  frame=  601 fps= 11 q=29.0 size=   17491kB time=00:00:19.98 bitrate=7168.3kbits/
  
  frame=  606 fps= 11 q=29.0 size=   17659kB time=00:00:20.22 bitrate=7153.8kbits/
  
  frame=  611 fps= 11 q=29.0 size=   17835kB time=00:00:20.45 bitrate=7143.0kbits/
  
  frame=  618 fps= 11 q=29.0 size=   18125kB time=00:00:20.56 bitrate=7218.1kbits/
  
  frame=  624 fps= 11 q=29.0 size=   18306kB time=00:00:20.80 bitrate=7208.9kbits/
  
  frame=  631 fps= 11 q=29.0 size=   18510kB time=00:00:21.15 bitrate=7169.4kbits/
  
  frame=  638 fps= 11 q=29.0 size=   18771kB time=00:00:21.26 bitrate=7230.6kbits/
  
  frame=  644 fps= 11 q=29.0 size=   18953kB time=00:00:21.49 bitrate=7221.9kbits/
  
  frame=  647 fps= 11 q=29.0 size=   19065kB time=00:00:21.61 bitrate=7225.8kbits/
  
  frame=  653 fps= 11 q=29.0 size=   19312kB time=00:00:21.73 bitrate=7280.0kbits/
  
  frame=  660 fps= 11 q=29.0 size=   19499kB time=00:00:22.07 bitrate=7234.8kbits/
  
  frame=  666 fps= 11 q=29.0 size=   19717kB time=00:00:22.19 bitrate=7277.2kbits/
  
  frame=  673 fps= 11 q=29.0 size=   19897kB time=00:00:22.42 bitrate=7267.7kbits/
  
  frame=  679 fps= 11 q=29.0 size=   20081kB time=00:00:22.54 bitrate=7297.2kbits/
  
  frame=  685 fps= 11 q=29.0 size=   20324kB time=00:00:22.89 bitrate=7273.1kbits/
  
  frame=  692 fps= 11 q=29.0 size=   20536kB time=00:00:23.12 bitrate=7275.0kbits/
  
  frame=  700 fps= 11 q=29.0 size=   20776kB time=00:00:23.47 bitrate=7251.0kbits/
  
  frame=  707 fps= 11 q=29.0 size=   20948kB time=00:00:23.58 bitrate=7275.1kbits/
  
  frame=  711 fps= 11 q=29.0 size=   21160kB time=00:00:23.70 bitrate=7312.5kbits/
  
  frame=  716 fps= 11 q=29.0 size=   21299kB time=00:00:23.82 bitrate=7324.8kbits/
  
  frame=  722 fps= 11 q=29.0 size=   21472kB time=00:00:24.16 bitrate=7277.8kbits/
  
  frame=  728 fps= 11 q=29.0 size=   21674kB time=00:00:24.28 bitrate=7311.2kbits/
  
  frame=  736 fps= 11 q=29.0 size=   21912kB time=00:00:24.63 bitrate=7287.1kbits/
  
  frame=  744 fps= 11 q=29.0 size=   22163kB time=00:00:24.86 bitrate=7301.6kbits/
  
  frame=  749 fps= 11 q=29.0 size=   22354kB time=00:00:24.98 bitrate=7330.2kbits/
  
  frame=  755 fps= 11 q=29.0 size=   22555kB time=00:00:25.09 bitrate=7362.0kbits/
  
  frame=  761 fps= 11 q=29.0 size=   22739kB time=00:00:25.33 bitrate=7354.2kbits/
  
  frame=  767 fps= 11 q=29.0 size=   23006kB time=00:00:25.56 bitrate=7372.7kbits/
  
  frame=  774 fps= 11 q=29.0 size=   23232kB time=00:00:25.79 bitrate=7378.2kbits/
  
  frame=  781 fps= 11 q=29.0 size=   23464kB time=00:00:26.02 bitrate=7385.5kbits/
  
  frame=  788 fps= 11 q=29.0 size=   23711kB time=00:00:26.14 bitrate=7430.0kbits/
  
  frame=  792 fps= 11 q=29.0 size=   23853kB time=00:00:26.25 bitrate=7441.6kbits/
  
  frame=  799 fps= 11 q=29.0 size=   24083kB time=00:00:26.60 bitrate=7414.9kbits/
  
  frame=  806 fps= 11 q=29.0 size=   24519kB time=00:00:26.83 bitrate=7483.7kbits/
  
  frame=  813 fps= 11 q=29.0 size=   24713kB time=00:00:27.07 bitrate=7478.3kbits/
  
  frame=  818 fps= 11 q=29.0 size=   24926kB time=00:00:27.18 bitrate=7510.7kbits/
  
  frame=  823 fps= 11 q=29.0 size=   25074kB time=00:00:27.41 bitrate=7491.2kbits/
  
  frame=  830 fps= 11 q=29.0 size=   25314kB time=00:00:27.65 bitrate=7499.2kbits/
  
  frame=  836 fps= 11 q=29.0 size=   25541kB time=00:00:27.76 bitrate=7535.0kbits/
  
  frame=  841 fps= 11 q=29.0 size=   25669kB time=00:00:28.00 bitrate=7510.0kbits/
  
  frame=  850 fps= 11 q=29.0 size=   25971kB time=-577014:-32:-22.-77 bitrate=N/A
  
  frame=  850 fps= 10 q=-1.0 Lsize=   27415kB time=00:00:28.37 bitrate=7915.7kbits
  
  /s dup=21 drop=0
  
  video:26940kB audio:444kB subtitle:0 global headers:0kB muxing overhead 0.113344
  
  %
  
  [libx264 @ 0000000002788fc0] frame I:4     Avg QP:20.92  size:166382
  
  [libx264 @ 0000000002788fc0] frame P:246   Avg QP:23.11  size: 60370
  
  [libx264 @ 0000000002788fc0] frame B:600   Avg QP:26.45  size: 20116
  
  [libx264 @ 0000000002788fc0] consecutive B-frames:  4.2%  1.9%  9.2% 84.7%
  
  [libx264 @ 0000000002788fc0] mb I  I16..4: 12.5% 73.1% 14.4%
  
  [libx264 @ 0000000002788fc0] mb P  I16..4:  1.9%  3.4%  0.5%  P16..4: 55.6% 14.5
  
  %  7.5%  0.0%  0.0%    skip:16.6%
  
  [libx264 @ 0000000002788fc0] mb B  I16..4:  0.2%  0.3%  0.1%  B16..8: 43.8%  3.9
  
  %  0.8%  direct: 2.9%  skip:48.0%  L0:50.7% L1:46.7% BI: 2.6%
  
  [libx264 @ 0000000002788fc0] 8x8 transform intra:60.5% inter:79.4%
  
  [libx264 @ 0000000002788fc0] coded y,uvDC,uvAC intra: 50.1% 56.3% 11.6% inter: 1
  
  4.5% 16.6% 0.1%
  
  [libx264 @ 0000000002788fc0] i16 v,h,dc,p: 35% 23% 12% 31%
  
  [libx264 @ 0000000002788fc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 15% 25%  6%  4%
  
   5%  4%  9%  5%
  
  [libx264 @ 0000000002788fc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 37% 14% 13%  6%  6%
  
   7%  4%  8%  4%
  
  [libx264 @ 0000000002788fc0] i8c dc,h,v,p: 61% 14% 21%  3%
  
  [libx264 @ 0000000002788fc0] Weighted P-Frames: Y:2.8% UV:2.0%
  
  [libx264 @ 0000000002788fc0] ref P L0: 58.0%  6.9% 26.5%  8.4%  0.1%
  
  [libx264 @ 0000000002788fc0] ref B L0: 86.3% 10.7%  3.0%
  
  [libx264 @ 0000000002788fc0] ref B L1: 93.4%  6.6%
  
  [libx264 @ 0000000002788fc0] kb/s:7832.26

• Revision 30966 : eviter le moche ’doctype_ecrire’ lors de l’upgrade

  17 août 2009, par fil@… — Log

  eviter le moche ’doctype_ecrire’ lors de l’upgrade