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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 (...)

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

  • Problèmes fréquents

    10 mars 2010, par

    PHP et safe_mode activé
    Une des principales sources de problèmes relève de la configuration de PHP et notamment de l’activation du safe_mode
    La solution consiterait à soit désactiver le safe_mode soit placer le script dans un répertoire accessible par apache pour le site

Sur d’autres sites (6885)

  • How to merge mp4 audio dash fragment with another audio

    19 décembre 2016, par mosvov

    I have 1 audio file from dash stream

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'file_191282-377206_header.mp4':   Metadata:

    major_brand     : iso6
    minor_version   : 1
    compatible_brands: mp42dashmsdhmsixiso6avc1isom
    creation_time   : 2016-04-29T11:04:26.000000Z   Duration: 00:00:30.02, start: 14.997333, bitrate: 49 kb/s
    Stream #0:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 48 kb/s (default)

    Also in exiftool output :

    Movie Data Size                 : 180193
    Movie Data Offset               : 6388

    I try to merge with another audio and save metadata info like Movie Data Size/Offset and start/duration time.
    I try with ffmpeg/MP4Box commands like :

    MP4Box -new -add file_191282-377206_header.mp4 -add out000.mp4
    ffmpeg -i file_191282-377206_header.mp4 -i out000.mp4 -codec copy -shortest output.mp4
    ffmpeg -i file_191282-377206_header.mp4 -i out000.mp4 -filter_complex amerge -ac 2 -c:a aac output.mp4

    All the time information erased or changed.

    So question is how to merge 2 audio files inside mp4 and not change Movie Size/Offset and start/duration time ?

  • dnn/vf_dnn_detect.c : add tensorflow output parse support

    6 mai 2021, par Ting Fu
    dnn/vf_dnn_detect.c : add tensorflow output parse support
    

    Testing model is tensorflow offical model in github repo, please refer
    https://github.com/tensorflow/models/blob/master/research/object_detection/g3doc/tf2_detection_zoo.md
    to download the detect model as you need.
    For example, local testing was carried on with 'ssd_mobilenet_v2_coco_2018_03_29.tar.gz', and
    used one image of dog in
    https://github.com/tensorflow/models/blob/master/research/object_detection/test_images/image1.jpg

    Testing command is :
    ./ffmpeg -i image1.jpg -vf dnn_detect=dnn_backend=tensorflow:input=image_tensor:output=\
    "num_detections&detection_scores&detection_classes&detection_boxes":model=ssd_mobilenet_v2_coco.pb,\
    showinfo -f null -

    We will see the result similar as below :
    [Parsed_showinfo_1 @ 0x33e65f0] side data - detection bounding boxes :
    [Parsed_showinfo_1 @ 0x33e65f0] source : ssd_mobilenet_v2_coco.pb
    [Parsed_showinfo_1 @ 0x33e65f0] index : 0, region : (382, 60) -> (1005, 593), label : 18, confidence : 9834/10000.
    [Parsed_showinfo_1 @ 0x33e65f0] index : 1, region : (12, 8) -> (328, 549), label : 18, confidence : 8555/10000.
    [Parsed_showinfo_1 @ 0x33e65f0] index : 2, region : (293, 7) -> (682, 458), label : 1, confidence : 8033/10000.
    [Parsed_showinfo_1 @ 0x33e65f0] index : 3, region : (342, 0) -> (690, 325), label : 1, confidence : 5878/10000.

    There are two boxes of dog with cores 94.05% & 93.45% and two boxes of person with scores 80.33% & 58.78%.

    Signed-off-by : Ting Fu <ting.fu@intel.com>
    Signed-off-by : Guo, Yejun <yejun.guo@intel.com>

    • [DH] libavfilter/vf_dnn_detect.c
  • ffmpeg - convert movie AND show original input (as resized picture-in-picture, top-left corner) in the final output file

    2 octobre 2019, par raven

    this is my first post on this forum, so please be gentle in case I accidentally do trip over any forum rules that I would not know of yet :).

    I would like to apply some color-grading to underwater GoPro footage. To quicker gauge the effect of my color settings (trial-and-error, as of yet), would like to see the original input video stream as a PIP (e.g., scaled down 50%), in the top-left corner of the converted output movie.

    I have one input movie that is going to be color graded. The PIP should use the original as an input, just a scaled-down version of it.

    I would like to use ffmpeg’s -filter_complex option to do the PIP, but all examples I can find on "-filter_complex" would use two already existing movies. Instead, I would like to make the color-corrected stream an on-the-fly input to "-filter_complex", which then renders the PIP.

    Is that doable, all in one go ?

    Both the individual snippets below work fine, I now would like to combine these and skip the creation of an intermediate color-graded video. Your help combining these two steps into one single process is greatly appreciated !

    Thanks in advance,
    raven.

    [existing code snippets (M$ batch files)]

    ::declarations/defines::
    set "INPUT="
    set "TMP="
    set "OUTPUT="
    set "FFMPG="
    set "QU=9" :: quality settings

    set "CONV='"0 -1 0 -1 5 -1 0 -1 0:0 -1 0 -1 5 -1 0 -1 0:0 -1 0 -1 5 -1
    0 -1 0:0 -1 0 -1 5 -1 0 -1 0'"" :: sharpening convolution filter

    ::color-grading part::
    %FFMPG% -i %INPUT% -vf convolution=%CONV%,colorbalance=rs=%rs%:gs=%gs%:bs=%bs%:rm=%rm%:gm=%gm%:bm=%bm%:rh=%rh%:gh=%gh%:bh=%bh% -q:v %QU% -codec:v mpeg4 %TMP%

    ::PIP part::
    %FFMPG% -i %INPUT% -i %TMP% -filter_complex "[1]scale=iw/3:ih/3
    [pip]; [0][pip] overlay=main_w-overlay_w-10:main_h-overlay_h-10" -q:v
    %QU% -codec:v mpeg4 %OUTPUT%

    [/existing code]