Recherche avancée

Médias (91)

Autres articles (52)

  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

Sur d’autres sites (10094)

  • FFmpeg uses all memory and crashes when inputs used multiple times in filter_complex

    28 octobre 2020, par ed22

    If I define some dummy filter_complex say :

    


    [3:v]split=2[3_1][3_2]
[3_1]format=yuv420p,scale='640:360',setsar='1/1'[1]
[3_2]format=yuv420p,scale='640:360',setsar='1/1'[2]
[4:v]split=2[4_1][4_2]
[4_1]format=yuv420p,scale='640:360',setsar='1/1'[3]
[4_2]format=yuv420p,scale='640:360',setsar='1/1'[4]
[1][2][3][4]concat=n=4:v=1:a=0[video_out]


    


    FFmpeg uses all the memory and crashes. What might be the reason ?
The same happens for :

    


    [3:v]format=yuv420p,scale='640:360',setsar='1/1'[1]
[3:v]format=yuv420p,scale='640:360',setsar='1/1'[2]
[4:v]format=yuv420p,scale='640:360',setsar='1/1'[3]
[4:v]format=yuv420p,scale='640:360',setsar='1/1'[4]
[1][2][3][4]concat=n=4:v=1:a=0[video_out]


    


    I know the examples are silly but I am here asking about why this uses all my RAM ? (and how to work around this)

    


    This works great by the way (inputs used once) :

    


    [3:v]format=yuv420p,scale='640:360',setsar='1/1'[1]
[4:v]format=yuv420p,scale='640:360',setsar='1/1'[2]
[1][2]concat=n=2:v=1:a=0[video_out]


    


    UPDATE :
The full log. While it runs it reaches 2GB memory usage in about 5s and continues to grow.

    


    ffmpeg.exe -y -f lavfi -i nullsrc=s=640x360 -i 1000211803.mp4 -i 220710.mp4 -i 223157.mp4 -i 232365.mp4 -i 1000000046.mp4 -i 1000238585.mp4 -filter_complex_script "c:\Users\wojtek\Desktop\Development\video_grid_ffmpeg_nodejs\filter_complex_param.txt" -vsync 2 -map "[video_out]" out.mp4
ffmpeg version n4.3.1-20-g8a2acdc6da Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9.3-win32 (GCC) 20200320
  configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-version3 --disable-debug --enable-iconv --enable-zlib --enable-libxml2 --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-opencl --enable-libvmaf --disable-vulkan --enable-libvorbis --enable-amf --enable-libaom --disable-avisynth --enable-libdav1d --disable-libdavs2 --enable-ffnvcodec --enable-cuda-llvm --disable-libglslang --enable-libass --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvpx --enable-libwebp --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librav1e --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libtwolame --disable-libvidstab --disable-libx264 --disable-libx265 --disable-libxavs2 --disable-libxvid --enable-libzimg --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-libs=-lgomp
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
Input #0, lavfi, from 'nullsrc=s=640x360':
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 25 tbr, 25 tbn, 25 tbc
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '1000211803.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.33.100
  Duration: 00:55:35.33, start: 0.000000, bitrate: 136 kb/s
    Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 376x210 [SAR 1:1 DAR 188:105], 134 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from '220710.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.33.100
  Duration: 00:57:21.43, start: 0.000000, bitrate: 102 kb/s
    Stream #2:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 376x210 [SAR 1:1 DAR 188:105], 99 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
Input #3, mov,mp4,m4a,3gp,3g2,mj2, from '223157.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.33.100
  Duration: 01:01:11.27, start: 0.000000, bitrate: 156 kb/s
    Stream #3:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 376x210 [SAR 1:1 DAR 188:105], 153 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
Input #4, mov,mp4,m4a,3gp,3g2,mj2, from '232365.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.33.100
  Duration: 01:01:07.20, start: 0.000000, bitrate: 127 kb/s
    Stream #4:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 376x210 [SAR 1:1 DAR 188:105], 124 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
Input #5, mov,mp4,m4a,3gp,3g2,mj2, from '1000000046.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.33.100
  Duration: 00:52:17.23, start: 0.000000, bitrate: 190 kb/s
    Stream #5:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 376x210 [SAR 1:1 DAR 188:105], 188 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
Input #6, mov,mp4,m4a,3gp,3g2,mj2, from '1000238585.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.33.100
  Duration: 00:50:58.77, start: 0.000000, bitrate: 106 kb/s
    Stream #6:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 376x210 [SAR 1:1 DAR 188:105], 103 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
Stream mapping:
  Stream #3:0 (h264) -> format
  Stream #3:0 (h264) -> format
  Stream #4:0 (h264) -> format
  Stream #4:0 (h264) -> format
  concat -> Stream #0:0 (mpeg4)
Press [q] to stop, [?] for help
Output #0, mp4, to 'out.mp4':
  Metadata:
    encoder         : Lavf58.45.100
    Stream #0:0: Video: mpeg4 (mp4v / 0x7634706D), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 30 fps, 15360 tbn, 30 tbc (default)
    Metadata:
      encoder         : Lavc58.91.100 mpeg4
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
frame= 6130 fps=610 q=20.6 Lsize=    5334kB time=00:03:24.30 bitrate= 213.9kbits/s speed=20.3x
video:5307kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.507003%


    


    The above has been produced using this filter_complex parameter value :

    


    [3:v]format=yuv420p,scale='-1:360',crop='640:in_h',setsar='1/1'[i2_640_360]
[3:v]format=yuv420p,scale='-1:360',crop='640:in_h',setsar='1/1'[i2_320_360]
[4:v]format=yuv420p,scale='-1:360',crop='640:in_h',setsar='1/1'[i3_320_360]
[4:v]format=yuv420p,scale='-1:360',crop='640:in_h',setsar='1/1'[i3_640_360]
[i2_640_360][i2_320_360][i3_320_360][i3_640_360]concat=n=4:v=1:a=0[video_out]


    


    I did not wait for it to give the out of memory error.

    


  • Revision cf3d2c8d5a : Corerctly sets frame type in the 2 pass case This patch sets frame types correc

    4 janvier 2014, par Deb Mukherjee

    Changed Paths :
     Modify /vp9/encoder/vp9_firstpass.c


     Modify /vp9/encoder/vp9_onyx_if.c


     Modify /vp9/encoder/vp9_ratectrl.c



    Corerctly sets frame type in the 2 pass case

    This patch sets frame types correctly in the new
    vp9_get_second_pass_params() function called prior
    to encode_frame_to_data_rate() function, so that the
    latter function can just work with what is passed to
    it. This will allow multiple vp9_get_second_pass_params()
    to be created for various encode strategies without
    messing with the core encode function.

    There is no difference in derf and yt. stdhd/hd are pending.

    Change-Id : I70dfb97e9f497e9cee04052e0e8e0c2892eab0c3

  • Revision 63c5bf2b9c : Fix Tsan errors This patch fixed 2 reported Tsan errors while running VP9 real-

    15 avril 2015, par Yunqing Wang

    Changed Paths :
     Modify /vp9/encoder/vp9_encodeframe.c


     Modify /vp9/encoder/vp9_encodeframe.h


     Modify /vp9/encoder/vp9_encoder.c


     Modify /vp9/encoder/vp9_pickmode.c



    Fix Tsan errors

    This patch fixed 2 reported Tsan errors while running VP9 real-time
    encoder.

    Change-Id : Ib0278fe802852862c3ce87c4a500e544d7089f67

Navigation