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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • La gestion des forums

    3 novembre 2011, par

    Si les forums sont activés sur le site, les administrateurs ont la possibilité de les gérer depuis l’interface d’administration ou depuis l’article même dans le bloc de modification de l’article qui se trouve dans la navigation de la page.
    Accès à l’interface de modération des messages
    Lorsqu’il est identifié sur le site, l’administrateur peut procéder de deux manières pour gérer les forums.
    S’il souhaite modifier (modérer, déclarer comme SPAM un message) les forums d’un article particulier, il a à sa (...)

Sur d’autres sites (12093)

  • May I use OpenCV in a customized FFMPEG filter ?

    20 mai 2016, par Codecodeup

    I am new to FFMPEG and OpenCV. I hope to overlay a heatmap video on top of a video. There could be two solutions :
    (1) Make a customized FFMPEG filter. When looping over each frame, calculate the heatmap for that frame and overlay it with the video frame. Here, I need some matrix operations to calculate the heatmap. May I use OpenCV for these operations inside the FFMPEG filter ?
    (2) Generate the heatmap, using OpenCV, as a video and then use FFMPEG to overly the heatmap video on top of the original video.

    Looks like the first one fits the FFMPEG workflow, but I am still not sure which solution is better, or if there are better solutions. Especially, I am not sure if I can use OpenCV inside FFMPEG.

    Thanks.

  • Using FFmpeg to encode 2pass mp4

    30 juin 2016, par Erin.Yang

    I am trying to use FFmpeg to encode my 4K mp4 file to a 2pass 265 mp4 file for the purposes of testing. I am new to video compression and hope I’m making a simple mistake that someone can correct.

    All infos in command line as below :

    C:\Ying\FF>C:\Ying\FF\ffmpeg.exe -y -i C:\Ying\FF\Xman-4K_50sec_3840x2160.mp4 -preset veryslow -x265-params pass=1 -vcodec hevc -b:v 15M -acodec libvo
    
_aacenc -b:a 128K C:\Ying\FF\Xman-4K_3840x2160_50sec_15M_H265_veryslow_2pass.mp4
    
ffmpeg version N-74286-ge5774f2 Copyright (c) 2000-2015 the FFmpeg developers
    
  built with gcc 4.9.3 (GCC)
    
  configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontco
    
nfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-l
    
ibfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-am
    
rwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-lib
    
twolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --en
    
able-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
    
  libavutil      54. 30.100 / 54. 30.100
    
  libavcodec     56. 57.100 / 56. 57.100
    
  libavformat    56. 40.101 / 56. 40.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 32.100 /  5. 32.100
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.101 /  1.  2.101
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Ying\FF\Xman-4K_50sec_3840x2160.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    title           : X-MEN__DAYS_OF_FUTURE_PAST.Title800
    
    encoder         : Lavf56.40.101
    
  Duration: 00:00:50.01, start: 0.000000, bitrate: 11067 kb/s
    
    Chapter #0:0: start 0.000000, end 50.000000
    
    Metadata:
    
      title           : (26)01:17:27:726
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 3840x2160 [SAR 1:1 DAR 16:9], 11492 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (de
    
fault)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
    Stream #0:2(eng): Subtitle: mov_text (text / 0x74786574), 0 kb/s
    
    Metadata:
    
      handler_name    : SubtitleHandler
    
x265 [info]: HEVC encoder version 1.7
    
x265 [info]: build info [Windows][GCC 4.9.2][64 bit] 8bpp
    
x265 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
x265 [info]: Main profile, Level-5 (Main tier)
    
x265 [info]: Thread pool created using 32 threads
    
x265 [info]: frame threads / pool features       : 8 / wpp(34 rows)
    
x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
    
x265 [info]: Residual QT: max TU size, max depth : 32 / 3 inter / 3 intra
    
x265 [info]: ME / range / subpel / merge         : dia / 57 / 2 / 1
    
x265 [info]: Keyframe min / max / scenecut       : 25 / 250 / 40
    
x265 [info]: Lookahead / bframes / badapt        : 40 / 8 / 2
    
x265 [info]: b-pyramid / weightp / weightb / refs: 1 / 1 / 1 / 1
    
x265 [info]: AQ: mode / str / qg-size / cu-tree  : 1 / 1.0 / 64 / 1
    
x265 [info]: Rate Control / qCompress            : ABR-15000 kbps / 0.60
    
x265 [info]: tools: rd=2 psy-rd=0.30 rdoq=2 psy-rdoq=1.00 early-skip signhide
    
x265 [info]: tools: tmvp b-intra fast-intra strong-intra-smoothing deblock sao
    
x265 [info]: tools: stats-write
    
Output #0, mp4, to 'C:\Ying\FF\Xman-4K_3840x2160_50sec_15M_H265_veryslow_2pass.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    title           : X-MEN__DAYS_OF_FUTURE_PAST.Title800
    
    encoder         : Lavf56.40.101
    
    Chapter #0:0: start 0.000000, end 50.000000
    
    Metadata:
    
      title           : (26)01:17:27:726
    
    Stream #0:0(und): Video: hevc (libx265) ([35][0][0][0] / 0x0023), yuv420p, 3840x2160 [SAR 1:1 DAR 16:9], q=2-31, 15000 kb/s, 30 fps, 15360 tbn, 30
    
 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
      encoder         : Lavc56.57.100 libx265
    
    Stream #0:1(und): Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
      encoder         : Lavc56.57.100 libvo_aacenc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265))
    
  Stream #0:1 -> #0:1 (aac (native) -> aac (libvo_aacenc))
    
Press [q] to stop, [?] for help
    
frame= 1502 fps=2.6 q=-0.0 Lsize=  100652kB time=00:00:50.01 bitrate=16485.9kbits/s dup=75 drop=0
    
video:99814kB audio:782kB subtitle:0kB other streams:0kB global headers:1kB muxing overhead: 0.054657%
    
x265 [info]: frame I:     11, Avg QP:13.26  kb/s: 59293.48
    
x265 [info]: frame P:    443, Avg QP:15.21  kb/s: 33977.10
    
x265 [info]: frame B:   1048, Avg QP:18.35  kb/s: 8420.64
    
x265 [info]: global :   1502, Avg QP:17.39  kb/s: 16330.84
    
x265 [info]: Weighted P-Frames: Y:4.5% UV:4.5%
    
x265 [info]: Weighted B-Frames: Y:1.9% UV:1.6%
    
x265 [info]: consecutive B-frames: 23.8% 11.9% 14.8% 22.9% 17.8% 7.0% 0.0% 0.0% 1.8%
    

    
C:\Ying\FF>C:\Ying\FF\ffmpeg.exe -y -i C:\Ying\FF\Xman-4K_50sec_3840x2160.mp4 -preset veryslow -x265-params pass=2 -vcodec hevc -b:v 15M -acodec libvo
    
_aacenc -b:a 128K C:\Ying\FF\Xman-4K_3840x2160_50sec_15M_H265_veryslow_2pass.mp4
    
ffmpeg version N-74286-ge5774f2 Copyright (c) 2000-2015 the FFmpeg developers
    
  built with gcc 4.9.3 (GCC)
    
  configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontco
    
nfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-l
    
ibfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-am
    
rwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-lib
    
twolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --en
    
able-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
    
  libavutil      54. 30.100 / 54. 30.100
    
  libavcodec     56. 57.100 / 56. 57.100
    
  libavformat    56. 40.101 / 56. 40.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 32.100 /  5. 32.100
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.101 /  1.  2.101
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Ying\FF\Xman-4K_50sec_3840x2160.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    title           : X-MEN__DAYS_OF_FUTURE_PAST.Title800
    
    encoder         : Lavf56.40.101
    
  Duration: 00:00:50.01, start: 0.000000, bitrate: 11067 kb/s
    
    Chapter #0:0: start 0.000000, end 50.000000
    
    Metadata:
    
      title           : (26)01:17:27:726
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 3840x2160 [SAR 1:1 DAR 16:9], 11492 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (de
    
fault)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
    Stream #0:2(eng): Subtitle: mov_text (text / 0x74786574), 0 kb/s
    
    Metadata:
    
      handler_name    : SubtitleHandler
    
x265 [info]: HEVC encoder version 1.7
    
x265 [info]: build info [Windows][GCC 4.9.2][64 bit] 8bpp
    
x265 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
x265 [info]: Main profile, Level-6 (Main tier)
    
x265 [info]: Thread pool created using 32 threads
    
x265 [info]: frame threads / pool features       : 8 / wpp(34 rows)
    
x265 [error]: statistics are damaged at line 1495, parser out=1
    
[libx265 @ 0000000001e97d00] Cannot open libx265 encoder.
    
Output #0, mp4, to 'C:\Ying\FF\Xman-4K_3840x2160_50sec_15M_H265_veryslow_2pass.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    title           : X-MEN__DAYS_OF_FUTURE_PAST.Title800
    
    encoder         : Lavf56.40.101
    
    Chapter #0:0: start 0.000000, end 50.000000
    
    Metadata:
    
      title           : (26)01:17:27:726
    
    Stream #0:0(und): Video: hevc, none, q=2-31, 128 kb/s, SAR 1:1 DAR 0:0, 30 fps (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
      encoder         : Lavc56.57.100 libx265
    
    Stream #0:1(und): Audio: aac, 0 channels, 128 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
      encoder         : Lavc56.57.100 libvo_aacenc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265))
    
  Stream #0:1 -> #0:1 (aac (native) -> aac (libvo_aacenc))
    
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

    MediaInfo :

    General
    
Complete name                            : E:\4K\2ndRound\Xman-4K_50sec_3840x2160.mp4.mp4
    
Format                                   : MPEG-4
    
Format profile                           : Base Media
    
Codec ID                                 : isom
    
File size                                : 66.0 MiB
    
Duration                                 : 50s 6ms
    
Overall bit rate                         : 11.1 Mbps
    
Movie name                               : X-MEN__DAYS_OF_FUTURE_PAST.Title800
    
Writing application                      : Lavf56.40.101
    

    
Video
    
ID                                       : 1
    
Format                                   : AVC
    
Format/Info                              : Advanced Video Codec
    
Format profile                           : High@L5.1
    
Format settings, CABAC                   : Yes
    
Format settings, ReFrames                : 4 frames
    
Codec ID                                 : avc1
    
Codec ID/Info                            : Advanced Video Coding
    
Duration                                 : 47s 567ms
    
Bit rate                                 : 11.5 Mbps
    
Width                                    : 3 840 pixels
    
Height                                   : 2 160 pixels
    
Display aspect ratio                     : 16:9
    
Frame rate mode                          : Constant
    
Frame rate                               : 30.000 fps
    
Color space                              : YUV
    
Chroma subsampling                       : 4:2:0
    
Bit depth                                : 8 bits
    
Scan type                                : Progressive
    
Bits/(Pixel*Frame)                       : 0.046
    
Stream size                              : 65.2 MiB (99%)
    

    
Audio
    
ID                                       : 2
    
Format                                   : AAC
    
Format/Info                              : Advanced Audio Codec
    
Format profile                           : LC
    
Codec ID                                 : 40
    
Duration                                 : 50s 6ms
    
Bit rate mode                            : Constant
    
Bit rate                                 : 128 Kbps
    
Channel(s)                               : 2 channels
    
Channel positions                        : Front: L R
    
Sampling rate                            : 48.0 KHz
    
Compression mode                         : Lossy
    
Stream size                              : 781 KiB (1%)
    

    
Menu #1
    
ID                                       : 3
    
Codec ID                                 : text
    
Duration                                 : 50s 0ms
    
Language                                 : English
    

    
Menu #2
    
00:00:00.000                             : (26)01:17:27:726
    

    
​

  • How to pass command line arguments to FFMpeg in iOS

    23 septembre 2014, par Arif Nadeem

    This is a beginner question, since I am new to iOS(I started it today), so please pardon my ignorance and lack of iOS knowledge.

    After building and successfully using FFMpeg for Android I wanted to do the same for iOS.
    So I built FFMpeg successfully for iOS by following this link, but after all that pain I am confused as how to use FFMpeg in iOS, I mean how can I pass command line arguments to libffmpeg.a file ?

    I am assuming that there must be a way to run the .a file as an executable and then pass command line arguments and hope for FFMpeg to do the magic, I did the same in Android and it worked beautifully.

    I am also aware that I can use ffmpeg.c class and use its main method, but the question remains ; how do I pass those command line arguments ?

    Is there something I am supposed to be aware of here, is the thing what I am doing now correct or am I falling short on my approach ?

    I wanted to mix two audio files, so the command for doing that would be ffmpeg -i firstSound.wav -i secondSound.wav -filter_complex amix=inputs=2:duration=longest finalOutput.wav, how do I do the same in iOS ?

    Can someone please shed some light on this ?

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