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  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Les tâches Cron régulières de la ferme

    1er décembre 2010, par

    La gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
    Le super Cron (gestion_mutu_super_cron)
    Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...)

  • Emballe Médias : Mettre en ligne simplement des documents

    29 octobre 2010, par

    Le plugin emballe médias a été développé principalement pour la distribution mediaSPIP mais est également utilisé dans d’autres projets proches comme géodiversité par exemple. Plugins nécessaires et compatibles
    Pour fonctionner ce plugin nécessite que d’autres plugins soient installés : CFG Saisies SPIP Bonux Diogène swfupload jqueryui
    D’autres plugins peuvent être utilisés en complément afin d’améliorer ses capacités : Ancres douces Légendes photo_infos spipmotion (...)

Sur d’autres sites (8424)

  • ffmpeg save video in segments, time does not match

    22 août 2022, par Yohann

    I use ffmpeg to save the rtsp live stream to the local, specify the fragment size of 2 seconds and use the current time to name the video file

    


    But the length of the returned video is not equal to 2 seconds and the interval between file names is not 2 seconds

    


    I have tried several command line arguments

    


    ffmpeg -i rtsp://192.168.18.119/live/test -f segment -strftime 1 -segment_time 2 -segment_atclocktime 1 -reset_timestamps 1 -an -vcodec copy ./%Y-%m-%d-%H.%M.%S.mp4

# execute result
2022-08-22-17.20.16.mp4  duration：00:03
2022-08-22-17.20.17.mp4  duration：00:03
2022-08-22-17.20.18.mp4  duration：00:07
2022-08-22-17.20.19.mp4  duration：00:03
2022-08-22-17.20.20.mp4  duration：00:03
# file names are not time aligned


    


    ffmpeg -i rtsp://192.168.18.119/live/test -f segment -strftime 1 -segment_time 2 -reset_timestamps 1 -an -vcodec copy ./%Y-%m-%d-%H.%M.%S.mp4

# execute result
2022-08-22-17.42.36.mp4 duration：00:03
2022-08-22-17.42.37.mp4 duration：00:03
2022-08-22-17.42.41.mD4 duration：00:03
2022-08-22-17.42.44.mp4 duration：00:03
2022-08-22-17.42.48.mp4 duration：00:03
2022-08-22-17.42.51.mp4 duration：00:03
# file names are not time aligned


    


    Expect to generate video

    


    2022-08-22-17.50.00.mp4 时长：00:02
2022-08-22-17.50.02.mp4 时长：00:02
2022-08-22-17.50.04.mD4 时长：00:02
2022-08-22-17.50.06.mp4 时长：00:02
2022-08-22-17.50.08.mp4 时长：00:02
2022-08-22-17.50.10.mp4 时长：00:02
...


    


  • ffmpeg - Can't stably save rtsp stream to file

    20 août 2022, par André Luís

    I'm trying to save the RTSP stream of this camera to file. However, at some point I'll get the following errors, which will stop the process.

    


    


    video:331639kB audio:5199kB subtitle:0kB other streams:0kB global
headers:0kB muxing overhead : unknown

    


    


    And a bunch of these, before the previous one :

    


    


    Non-monotonous DTS in output stream 0:1 ; previous : 5439375, current :
5439283 ; changing to 5439376. This may result in incorrect timestamps
in the output file.

    


    


    Here is the command I'm running :

    


    ffmpeg "rtsp://192.168.0.100:554/cam/realmonitor?channel=1&subtype=0" -c copy -f segment -segment_time 00:01:00 -reset_timestamps 1 -segment_format mkv -strftime 1 /home/user/.camera/recordings/2022/8/19/%H_%M_%S.mkv


    


    I've tried adding each of these parameters and they all together :

    


    -fflags +autobsf+genpts -y -threads 1 -use_wallclock_as_timestamps 1 -dts_delta_threshold 0 -rtsp_transport tcp -i


    


    ffprobe :

    


    {
    "streams": [
        {
            "index": 0,
            "codec_name": "h264",
            "codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
            "profile": "Main",
            "codec_type": "video",
            "codec_tag_string": "[0][0][0][0]",
            "codec_tag": "0x0000",
            "width": 1920,
            "height": 1080,
            "coded_width": 1920,
            "coded_height": 1080,
            "closed_captions": 0,
            "film_grain": 0,
            "has_b_frames": 0,
            "pix_fmt": "yuvj420p",
            "level": 40,
            "color_range": "pc",
            "chroma_location": "left",
            "field_order": "progressive",
            "refs": 1,
            "is_avc": "false",
            "nal_length_size": "0",
            "r_frame_rate": "100/1",
            "avg_frame_rate": "0/0",
            "time_base": "1/90000",
            "start_pts": 9000,
            "start_time": "0.100000",
            "bits_per_raw_sample": "8",
            "extradata_size": 27,
            "disposition": {
                "default": 0,
                "dub": 0,
                "original": 0,
                "comment": 0,
                "lyrics": 0,
                "karaoke": 0,
                "forced": 0,
                "hearing_impaired": 0,
                "visual_impaired": 0,
                "clean_effects": 0,
                "attached_pic": 0,
                "timed_thumbnails": 0,
                "captions": 0,
                "descriptions": 0,
                "metadata": 0,
                "dependent": 0,
                "still_image": 0
            }
        },
        {
            "index": 1,
            "codec_name": "aac",
            "codec_long_name": "AAC (Advanced Audio Coding)",
            "profile": "LC",
            "codec_type": "audio",
            "codec_tag_string": "[0][0][0][0]",
            "codec_tag": "0x0000",
            "sample_fmt": "fltp",
            "sample_rate": "16000",
            "channels": 1,
            "channel_layout": "mono",
            "bits_per_sample": 0,
            "r_frame_rate": "0/0",
            "avg_frame_rate": "0/0",
            "time_base": "1/16000",
            "start_pts": 0,
            "start_time": "0.000000",
            "extradata_size": 2,
            "disposition": {
                "default": 0,
                "dub": 0,
                "original": 0,
                "comment": 0,
                "lyrics": 0,
                "karaoke": 0,
                "forced": 0,
                "hearing_impaired": 0,
                "visual_impaired": 0,
                "clean_effects": 0,
                "attached_pic": 0,
                "timed_thumbnails": 0,
                "captions": 0,
                "descriptions": 0,
                "metadata": 0,
                "dependent": 0,
                "still_image": 0
            }
        }
    ]
}


    


    I honestly don't know what else to do.

    


  • how to remux/fix video file saved with testdisk that reports error "Invalid NAL unit size"

    18 août 2022, par Luka

    I have deleted a video file from an SD card and then 'undeleted' it with tool called testdisk for Linux. It saved complete file (6Gb), but video seems broken (can't be played by any video players) and ffprobe reports :

    


    [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55c613baef00] st: 0 edit list: 1 Missing key frame while searching for timestamp: 1000
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x55c613baef00] st: 0 edit list 1 Cannot find an index entry before timestamp: 1000.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x55c613baef00] Found duplicated MOOV Atom. Skipped it
[aac @ 0x55c613bb6dc0] channel element 3.6 is not allocated
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-2119335523 > 644375).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (1846222201 > 61596).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-864346179 > 57764).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (822755552 > 161099).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (188456672 > 131075).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-2009136561 > 113517).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-821906870 > 228207).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-516947408 > 120554).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (268246533 > 115897).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-1483463928 > 238451).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-1693450506 > 114421).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (1048922816 > 114846).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-600883429 > 357422).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-1612859848 > 93601).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-600474974 > 111975).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (321873764 > 211226).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-665491613 > 92183).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (258461639 > 95290).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (713914840 > 195792).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-556556768 > 93998).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-1864278243 > 94783).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-333442404 > 203732).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (1836887686 > 95706).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (125657193 > 96573).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-2049008956 > 342294).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (650110420 > 98067).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (694115932 > 100359).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (955742608 > 204098).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (1004021052 > 100944).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-885264782 > 100557).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[h264 @ 0x55c613bb0cc0] Invalid NAL unit size (-1074298568 > 209804).
[h264 @ 0x55c613bb0cc0] Error splitting the input into NAL units.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x55c613baef00] decoding for stream 0 failed
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x55c613baef00] Could not find codec parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none(pc, bt709), 1920x1080, 29593 kb/s): unspecified pixel format
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'MVI_1399.MP4':
  Metadata:
    creation_time   : 2022-08-17T17:13:19.000000Z
    major_brand     : mp42
    minor_version   : 1
    make            : 
    make-eng        : 
    model           : 
    model-eng       : 
    compatible_brands: mp42avc1CAEP
  Duration: 00:29:59.08, start: 0.000000, bitrate: 29879 kb/s
    Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), none(pc, bt709), 1920x1080, 29593 kb/s, 25 fps, 25 tbr, 25k tbn, 50k tbc (default)
    Metadata:
      creation_time   : 2022-08-17T17:13:19.000000Z
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 253 kb/s (default)
    Metadata:
      creation_time   : 2022-08-17T17:13:19.000000Z


    


    I'm no programmer, but have used ffmpeg a lot. How can I remux (or even re-encode) such file to fix this and make the file usable for further work ?

    


    I have created a 10seconds snippet with ffmpeg -i MVI_1399.MP4 -t 00:00:10 -c copy MVI_1399_10sec.mp4 for anyone to check. I also created a ten second snippet from a functioning clip from the same camera (I presume same codec parameters etc) :

    


    https://cb.emanat.si/s/WzTCxHDkzGw3gM3

    


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