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  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
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  • La sauvegarde automatique de canaux SPIP

    1er avril 2010, par

    Dans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
    Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...)

Sur d’autres sites (8173)

  • FFmpeg CPU utilization

    9 août 2013, par user2565986

    I have a server running Scientific Linux. I'm trying to convert a large amount of videos and want to maximize cpu usage. My ffmpeg version is git-2013-08-06-a68b6ec.

    FFmpeg command :

    ffmpeg -y -i "$i" -c:v libx264 -preset fast -b:v "$VID_BIT" -threads 0 -c:a libfdk_aac -b:a "$AUD_BIT" -f mp4 /"$OUT_DIR"/"$MD5"

    top output :

    top - 10:47:25 up 3 days, 22:05,  5 users,  load average: 1.94, 0.49, 0.16
    
Tasks: 578 total,   1 running, 574 sleeping,   3 stopped,   0 zombie
    
Cpu0  :  0.0%us,  0.6%sy, 63.2%ni, 36.1%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu1  :  0.0%us,  0.6%sy, 60.1%ni, 39.3%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu2  :  0.0%us,  0.3%sy, 59.5%ni, 40.1%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu3  :  0.0%us,  0.6%sy, 57.1%ni, 42.2%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu4  :  0.0%us,  0.3%sy, 55.0%ni, 44.7%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu5  :  0.0%us,  0.6%sy, 50.2%ni, 49.2%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu6  :  0.0%us,  0.3%sy, 56.4%ni, 43.3%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu7  :  0.0%us,  0.6%sy, 50.3%ni, 49.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu8  :  0.0%us,  0.6%sy, 47.7%ni, 51.6%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu9  :  0.3%us,  0.3%sy, 46.8%ni, 52.6%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu10 :  0.0%us,  0.3%sy, 50.2%ni, 49.5%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu11 :  0.0%us,  0.7%sy, 49.0%ni, 50.3%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu12 :  0.0%us,  0.6%sy, 49.4%ni, 50.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu13 :  0.0%us,  0.6%sy, 43.2%ni, 56.1%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu14 :  0.0%us,  0.3%sy, 44.5%ni, 55.2%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu15 :  0.0%us,  0.6%sy, 46.3%ni, 53.1%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu16 :  0.0%us,  0.7%sy, 44.6%ni, 54.8%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu17 :  0.0%us,  0.3%sy, 43.3%ni, 56.4%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu18 :  0.0%us,  0.3%sy, 41.6%ni, 58.1%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu19 :  0.0%us,  0.3%sy, 34.3%ni, 65.4%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu20 :  0.0%us,  0.6%sy, 32.5%ni, 66.9%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu21 :  0.0%us,  0.3%sy, 37.9%ni, 61.4%id,  0.3%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu22 :  0.0%us,  0.3%sy, 36.9%ni, 62.8%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Cpu23 :  0.0%us,  1.0%sy, 37.6%ni, 61.4%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    
Mem:  198345032k total, 10135568k used, 188209464k free,   144212k buffers
    
Swap: 55640056k total,        0k used, 55640056k free,  5066724k cached

    I'm not sure why user usage is at 0% and the niced usage is all I see, but either way I'm looking for a way to get the usage up to 100%. Is there anyway to bolster the usage or is this the best I'm gonna get ?

  • ffmpeg error when cutting video (aac bitstream error)

    15 août 2013, par user4455

    I'm trying to use ffmpeg to cut out a 5 minute chunk from a video. For some reason on this particular video I get an error "aac bitstream error". The resulting video is 5 minutes long with no audio or video.

    ffmpeg -i testvideo.mp4 -ss 00:05:00 -t 00:10:00 -c:v copy -c:a copy testvideo_5min_test.mp4
    
ffmpeg version N-55540-g93f4277 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Aug 14 2013 12:15:34 with gcc 4.3.2 (Debian 4.3.2-1.1)
    
  configuration: --enable-libx264 --enable-gpl --enable-shared --enable-libfaac --enable-nonfree
    
  libavutil      52. 42.100 / 52. 42.100
    
  libavcodec     55. 28.100 / 55. 28.100
    
  libavformat    55. 13.102 / 55. 13.102
    
  libavdevice    55.  3.100 / 55.  3.100
    
  libavfilter     3. 82.100 /  3. 82.100
    
  libswscale      2.  4.100 /  2.  4.100
    
  libswresample   0. 17.103 /  0. 17.103
    
  libpostproc    52.  3.100 / 52.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'testvideo.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42mp41
    
    creation_time   : 2013-05-10 17:42:36
    
  Duration: 00:35:21.47, start: 0.000000, bitrate: 8684 kb/s
    
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 8490 kb/s, 29.97 fps, 29.97 tbr, 29970 tbn, 59.94 tbc
    
    Metadata:
    
      creation_time   : 2013-05-10 17:42:36
    
      handler_name    : Mainconcept MP4 Video Media Handler
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s
    
    Metadata:
    
      creation_time   : 2013-05-10 17:42:36
    
      handler_name    : Mainconcept MP4 Sound Media Handler
    
File 'testvideo_5min_test.mp4' already exists. Overwrite ? [y/N] y
    
Output #0, mp4, to 'testvideo_5min_test.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42mp41
    
    encoder         : Lavf55.13.102
    
    Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 8490 kb/s, 29.97 fps, 29970 tbn, 29970 tbc
    
    Metadata:
    
      creation_time   : 2013-05-10 17:42:36
    
      handler_name    : Mainconcept MP4 Video Media Handler
    
    Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 189 kb/s
    
    Metadata:
    
      creation_time   : 2013-05-10 17:42:36
    
      handler_name    : Mainconcept MP4 Sound Media Handler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[mp4 @ 0x8088740] aac bitstream error5886kB time=00:01:13.63 bitrate=8442.8kbits/s    
    
[mp4 @ 0x8088740] aac bitstream error8357kB time=00:04:15.24 bitrate=8612.9kbits/s    
    
[mp4 @ 0x8088740] aac bitstream error6128kB time=00:05:00.25 bitrate=8625.0kbits/s    
    
[mp4 @ 0x8088740] aac bitstream error6415kB time=00:07:12.56 bitrate=8643.7kbits/s    
    
frame=17952 fps=2429 q=-1.0 Lsize=  635531kB time=00:10:00.01 bitrate=8677.0kbits/s    
    
video:621056kB audio:13870kB subtitle:0 global headers:0kB muxing overhead 0.095223%

  • convert yuv to mp4 by ffmpeg on android

    10 août 2013, par worldask

    i have to convert yuv to mp4 by ffmpeg on android. When I convert wav to mp4 it works well. but when i convert yuv or yuv + wav to mp4, i got errer message said

    Error decoding AAC frame header

    anybody knows what happened ?

    following is the full debug log

    transferYUV2MP4() enter
    
__transfer_yuv_to_mp4() enter
    
__transfer_yuv_to_mp4() argv[00/17] = ffmpeg
    
__transfer_yuv_to_mp4() argv[01/17] = -loglevel
    
__transfer_yuv_to_mp4() argv[02/17] = debug
    
__transfer_yuv_to_mp4() argv[03/17] = -y
    
__transfer_yuv_to_mp4() argv[04/17] = -i
    
__transfer_yuv_to_mp4() argv[05/17] = /sdcard/111.yuv
    
__transfer_yuv_to_mp4() argv[06/17] = -i
    
__transfer_yuv_to_mp4() argv[07/17] = /sdcard/3.wav
    
__transfer_yuv_to_mp4() argv[08/17] = -c:a
    
__transfer_yuv_to_mp4() argv[09/17] = aac
    
__transfer_yuv_to_mp4() argv[10/17] = -strict
    
__transfer_yuv_to_mp4() argv[11/17] = experimental
    
__transfer_yuv_to_mp4() argv[12/17] = -b:a
    
__transfer_yuv_to_mp4() argv[13/17] = 56k
    
__transfer_yuv_to_mp4() argv[14/17] = -preset
    
__transfer_yuv_to_mp4() argv[15/17] = ultrafast
    
__transfer_yuv_to_mp4() argv[16/17] = /sdcard/111.mp4
    
__run_ffmpeg_main() enter
    
__run_ffmpeg_main() handle=0xb000f7f8
    
__run_ffmpeg_main() dlfunc=0x4b5a2728
    
ffmpeg version 1.2.2
    
 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Aug 10 2013 16:34:45 with gcc 4.6 (GCC) 20120106 (prerelease)
    
  configuration: --target-os=linux --prefix=./android/armv7-a --sysroot=/Users/pht/android/ndks/android-ndk-r9/platforms/android-8/arch-arm/ --enable-gpl --enable-version3 --disable-shared --enable-static --disable-ffprobe --disable-ffplay --disable-ffserver --disable-network --enable-avformat --enable-avcodec --enable-cross-compile --arch=arm --cc=/Users/pht/android-standalone-toolchain/bin/arm-linux-androideabi-gcc --nm=/Users/pht/android-standalone-toolchain/bin/arm-linux-androideabi-nm --cross-prefix=/Users/pht/android-standalone-toolchain/bin/arm-linux-androideabi- --extra-cflags=' -I../fdk-aac/include -I../x264 -O3 -fpic -DANDROID -DHAVE_SYS_UIO_H=1 -Dipv6mr_interface=ipv6mr_ifindex -fasm -Wno-psabi -fno-short-enums -fno-strict-aliasing -finline-limit=300 -mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=armv7-a ' --extra-ldflags=' -L../fdk-aac/lib -L../x264 -Wl,-rpath-link=/Users/pht/android/ndks/android-ndk-r9/platforms/android-8/arch-arm//usr/lib -L/Users/pht/android/ndks/android-ndk-r9/platforms/andr
    
  libavutil      52. 18.100 / 52. 18.100
    
  libavcodec     54. 92.100 / 54. 92.100
    
  libavformat    54. 63.104 / 54. 63.104
    
  libavdevice    54.  3.103 / 54.  3.103
    
  libavfilter     3. 42.103 /  3. 42.103
    
  libswscale      2.  2.100 /  2.  2.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  2.100 / 52.  2.100
    
Splitting the commandline.
    
Reading option '-loglevel' ...
    
 matched as option 'loglevel' (set libav* logging level) with argument 'debug'.
    
Reading option '-y' ...
    
 matched as option 'y' (overwrite output files) with argument '1'.
    
Reading option '-i' ...
    
 matched as input file with argument '/sdcard/111.yuv'.
    
Reading option '-i' ...
    
 matched as input file with argument '/sdcard/3.wav'.
    
Reading option '-c:a' ...
    
 matched as option 'c' (codec name) with argument 'aac'.
    
Reading option '-strict' ...
    
 matched as AVOption 'strict' with argument 'experimental'.
    
Reading option '-b:a' ...
    
 matched as option 'b' (video bitrate (please use -b:v)) with argument '56k'.
    
Reading option '-preset' ...
    
 matched as AVOption 'preset' with argument 'ultrafast'.
    
Reading option '/sdcard/111.mp4' ...
    
 matched as output file.
    
Finished splitting the commandline.
    
Parsing a group of options: global .
    
Applying option loglevel (set libav* logging level) with argument debug.
    
Applying option y (overwrite output files) with argument 1.
    
Successfully parsed a group of options.
    
Parsing a group of options: input file /sdcard/111.yuv.
    
Successfully parsed a group of options.
    
Opening an input file: /sdcard/111.yuv.
    
Format aac detected only with low score of 1, misdetection possible!
    
File position before avformat_find_stream_info() is 0
    
get_buffer() failed
    
Error decoding AAC frame header.
    
channel element 2.12 is not allocated
    
More than one AAC RDB per ADTS frame is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
    
channel element 3.4 is not allocated
    
channel element 2.2 is not allocated
    
Number of scalefactor bands in group (44) exceeds limit (40).
    
channel element 2.10 is not allocated
    
channel element 1.15 is not allocated
    
channel element 3.6 is not allocated
    
channel element 2.0 is not allocated
    
channel element 3.3 is not allocated
    
Sample rate index in program config element does not match the sample rate index configured by the container.
    
channel element 2.8 is not allocated
    
Sample rate index in program config element does not match the sample rate index configured by the container.
    
channel element 3.2 is not allocated
    
Reserved bit set.
    
channel element 2.6 is not allocated
    
channel element 2.1 is not allocated
    
Dependent coupling is not supported together with LTP
    
Dependent coupling is not supported together with LTP
    
Dependent coupling is not supported together with LTP
    
Dependent coupling is not supported together with LTP
    
Dependent coupling is not supported together with LTP

    and the "Dependent coupling..." line loops thousands of times

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