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  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Ajouter notes et légendes aux images

    7 février 2011, par

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

  • Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs

    12 avril 2011, par

    La manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
    Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.

Sur d’autres sites (8696)

  • how to add duration to mjpeg or how to make mjpeg faster

    10 octobre 2014, par n2v2rda2

    i have ip-cam mjpeg that i made and it have total 240 frames

    encode souce is
    ffmpeg.exe -framerate 25 -i c :\%06d.jpg\ -s 1920x1080 -qscale 1 -vcodec mjpeg -r 25 C :\result.mjpg -y

    now i want to play result.mjpg by mjpeg player i made

    my problem
    
1. i can't get mjpeg's play time or duration time
    

    
2. playing is slower then other movie player so i want to sync it and play more faster

    below is ffprobe result

    Input #0, mjpeg, from 'result.mjpg':
    
Duration: N/A, bitrate: N/A
    
Stream #0:0: Video: mjpeg, yuvj444p(pc, bt470bg), 1920x1080, 25 tbr, 1200k tbn, 25 tbc

    below is result added -show_frame

    [FRAME]
    
media_type=video
    
key_frame=1
    
pkt_pts=720000
    
pkt_pts_time=0.600000
    
pkt_dts=720000
    
pkt_dts_time=0.600000
    
best_effort_timestamp=720000
    
best_effort_timestamp_time=0.600000
    
pkt_duration=48000
    
pkt_duration_time=0.040000
    
pkt_pos=4731406
    
pkt_size=313289
    
width=1920
    
height=1080
    
pix_fmt=yuvj444p
    
sample_aspect_ratio=333:320
    
pict_type=I
    
coded_picture_number=0
    
display_picture_number=0
    
interlaced_frame=0
    
top_field_first=0
    
repeat_pict=0
    
[/FRAME]

    ffprobe show me there are Duration : N/A, bitrate : N/A

    how do i set Duration and bitrate
    is there any encode-option i have to set ?

    when i decode mjpeg like below

    i can’t get duration just 0

    AVFormatContext*  pFC;
    
int               ret;
    

    
pFC = avformat_alloc_context();
    

    
ret  = avformat_open_input(&pFC, filename, NULL, NULL);
    
if (ret < 0) {
    
    // fail .
    
}
    

    
ret  = avformat_find_stream_info(pFC, NULL);
    
if (ret < 0) {
    
    // fail
    
}
    
printf("duration %ld", pFC->duration);   <----- only 0

  • How can I generate encoded HEVC bitstream using ffmpeg ?

    31 octobre 2014, par jgmao

    I am able to encoded YUV file to mp4 using HEVC :

    ffmpeg.exe -f rawvideo -s 1920x1080 -pix_fmt yuv420p -i input.yuv -c:v hevc -r 30 -x265-params crf=27 -vframes 300 -an -y test.mp4

    Here is the mp4box -info test.mp4 shows :

    * Movie Info *
    
        Timescale 1000 - Duration 00:00:10.000
    
        1 track(s)
    
        Fragmented File: no
    
        File suitable for progressive download (moov before mdat)
    
        File Brand isom - version 512
    
        Created: UNKNOWN DATE   Modified: UNKNOWN DATE File has no MPEG4 IOD/OD
    

    
iTunes Info:
    
        Encoder Software: Lavf56.11.100
    

    
Track # 1 Info - TrackID 1 - TimeScale 15360 - Media Duration 00:00:10.000 Track has 1 edit lists: track duration is 00:00:10.000 Media Info: Language "Undetermined" - Type "vide:hev1" - 300 samples Visual Track layout: x=0 y=0 width=1920 height=1080 MPEG-4 Config: Visual Stream - ObjectTypeIndication 0x23 HEVC Video - Visual Size 1920 x 1080
    
        HEVC Info: Profile Main @ Level 5 - Chroma Format 1
    
        NAL Unit length bits: 32 - general profile compatibility 0x60000000
    
        Parameter Sets: 1 VPS 1 SPS 1 PPS
    
        SPS resolution 1920x1080
    
        Bit Depth luma 8 - Chroma 8 - 1 temporal layers

    But how can I get the decodeble bit stream ? I tried

     mp4box -raw 1 test.mp4 -out out.bin

    It gives :

    Extracting MPEG-H HEVC stream to hevc

    But the out.bin couldn’t be decoded by HM or elecard.

    Thanks

  • Not all portions of video play well after concatenation

    24 septembre 2018, par srgbnd

    Node.JS 8.11.4, fluent-ffmpeg 2.1.2

    I need to concatenate random portions of the same length of different videos in one video file. The concatenation proceeds without errors. But when I play the final concatenated file I see some portions playing well with sound, others have video "frozen" but sounds playing.

    What’s the problem ? I want all portions playing well in the final concatenated file.

    Concatenation config :

    trex@cave:/media/trex/safe1/Development/app$ head concat_config.txt
    
file /media/trex/safe1/Development/app/videos/test/417912400.mp4
    
inpoint 145
    
outpoint 155
    
file /media/trex/safe1/Development/app/videos/test/440386842.mp4
    
inpoint 59
    
outpoint 69
    
file /media/trex/safe1/Development/app/videos/test/417912400.mp4
    
inpoint 144
    
outpoint 154
    
    ...

    In total, I have 16 portions of 2 videos. Duration of a portion is 10 sec. In the future the number of video files and portions will be much bigger.

    trex@cave:/media/trex/safe1/Development/app$ ls -lh videos/test/
    
total 344M
    
-rw-r--r-- 1 trex trex  90M set 23 12:19 417912400.mp4
    
-rw-r--r-- 1 trex trex 254M set 23 12:19 440386842.mp4

    JavaScript code for the concatentaion :

    const fs = require('fs');
    
const path = require('path');
    
const _ = require('lodash');
    
const ffmpegPath = require('@ffmpeg-installer/ffmpeg').path;
    
const ffprobePath = require('@ffprobe-installer/ffprobe').path;
    
const ffmpeg = require('fluent-ffmpeg');
    
ffmpeg.setFfmpegPath(ffmpegPath);
    
ffmpeg.setFfprobePath(ffprobePath);
    

    

    
function getMetadata(absPathToFile) {
    
  return new Promise(function (resolve, reject) {
    
    ffmpeg.ffprobe(absPathToFile, function(err, metadata) {
    
      if (err) {
    
        reject('get video meta: ' + err.toString());
    
      }
    
      resolve(metadata);
    
    });
    
  });
    
}
    

    
async function getFormat(files) {
    
  const pArray = files.map(async f => {
    
    const meta = await getMetadata(f);
    
    meta.format.short_filename = meta.format.filename.split('/').pop();
    
    return meta.format;
    
  });
    
  return await Promise.all(pArray);
    
}
    

    
function getSliceValues(duration, max = 10) {
    
  max = duration < max ? duration * 0.5 : max; // sec
    
  const start = _.random(0, duration * 0.9);
    
  const end = start + max > duration ? duration : start + max;
    
  return `inpoint ${Math.floor(start)}\noutpoint ${Math.floor(end)}\n`;
    
}
    

    
function addPath(arr, aPath) {
    
  return arr.map(e => path.join(aPath, e));
    
}
    

    
function createConfig(meta) {
    
  return meta.map(video => `file ${video.filename}\n${getSliceValues(video.duration)}`).join('');
    
}
    

    
function duplicateMeta(meta) {
    
  for (let i = 0; i < 3; i++) {
    
    meta.push(...meta);
    
  }
    
  return _.shuffle(meta);
    
}
    

    
const videoFolder = path.join(__dirname, 'videos/test');
    
const finalVideo = 'final_video.mp4';
    
const configFile = 'concat_config.txt'; 
    

    
// main
    
(async () => {
    
  let videos = addPath(fs.readdirSync(videoFolder), videoFolder);
    

    
  let meta = await getFormat(videos);
    
  meta = duplicateMeta(meta); // get multiple portions of videos
    

    
  fs.writeFileSync(configFile, createConfig(meta));
    

    
  const mpeg = ffmpeg();
    
  mpeg.input(configFile)
    
    .inputOptions(['-f concat', '-safe 0'])
    
    .outputOptions('-c copy')
    
    .save(finalVideo);
    
})();

    Video files formats :

    { streams: 
    
   [ { index: 0,
    
       codec_name: 'h264',
    
       codec_long_name: 'H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10',
    
       profile: 'High',
    
       codec_type: 'video',
    
       codec_time_base: '1001/60000',
    
       codec_tag_string: 'avc1',
    
       codec_tag: '0x31637661',
    
       width: 1920,
    
       height: 1080,
    
       coded_width: 1920,
    
       coded_height: 1088,
    
       has_b_frames: 2,
    
       sample_aspect_ratio: '1:1',
    
       display_aspect_ratio: '16:9',
    
       pix_fmt: 'yuv420p',
    
       level: 40,
    
       color_range: 'tv',
    
       color_space: 'bt709',
    
       color_transfer: 'bt709',
    
       color_primaries: 'bt709',
    
       chroma_location: 'left',
    
       field_order: 'unknown',
    
       timecode: 'N/A',
    
       refs: 1,
    
       is_avc: 'true',
    
       nal_length_size: 4,
    
       id: 'N/A',
    
       r_frame_rate: '30000/1001',
    
       avg_frame_rate: '30000/1001',
    
       time_base: '1/30000',
    
       start_pts: 0,
    
       start_time: 0,
    
       duration_ts: 4936900,
    
       duration: 164.563333,
    
       bit_rate: 4323409,
    
       max_bit_rate: 'N/A',
    
       bits_per_raw_sample: 8,
    
       nb_frames: 4932,
    
       nb_read_frames: 'N/A',
    
       nb_read_packets: 'N/A',
    
       tags: [Object],
    
       disposition: [Object] },
    
     { index: 1,
    
       codec_name: 'aac',
    
       codec_long_name: 'AAC (Advanced Audio Coding)',
    
       profile: 'LC',
    
       codec_type: 'audio',
    
       codec_time_base: '1/48000',
    
       codec_tag_string: 'mp4a',
    
       codec_tag: '0x6134706d',
    
       sample_fmt: 'fltp',
    
       sample_rate: 48000,
    
       channels: 2,
    
       channel_layout: 'stereo',
    
       bits_per_sample: 0,
    
       id: 'N/A',
    
       r_frame_rate: '0/0',
    
       avg_frame_rate: '0/0',
    
       time_base: '1/48000',
    
       start_pts: 0,
    
       start_time: 0,
    
       duration_ts: 7899120,
    
       duration: 164.565,
    
       bit_rate: 256000,
    
       max_bit_rate: 263232,
    
       bits_per_raw_sample: 'N/A',
    
       nb_frames: 7714,
    
       nb_read_frames: 'N/A',
    
       nb_read_packets: 'N/A',
    
       tags: [Object],
    
       disposition: [Object] } ],
    
  format: 
    
   { filename: '/media/trex/safe1/Development/app/videos/test/417912400.mp4',
    
     nb_streams: 2,
    
     nb_programs: 0,
    
     format_name: 'mov,mp4,m4a,3gp,3g2,mj2',
    
     format_long_name: 'QuickTime / MOV',
    
     start_time: 0,
    
     duration: 164.565,
    
     size: 94298844,
    
     bit_rate: 4584150,
    
     probe_score: 100,
    
     tags: 
    
      { major_brand: 'mp42',
    
        minor_version: '0',
    
        compatible_brands: 'mp42mp41isomavc1',
    
        creation_time: '2015-09-21T19:11:21.000000Z' } },
    
  chapters: [] }
    
{ streams: 
    
   [ { index: 0,
    
       codec_name: 'h264',
    
       codec_long_name: 'H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10',
    
       profile: 'High',
    
       codec_type: 'video',
    
       codec_time_base: '1001/48000',
    
       codec_tag_string: 'avc1',
    
       codec_tag: '0x31637661',
    
       width: 2560,
    
       height: 1440,
    
       coded_width: 2560,
    
       coded_height: 1440,
    
       has_b_frames: 2,
    
       sample_aspect_ratio: '1:1',
    
       display_aspect_ratio: '16:9',
    
       pix_fmt: 'yuv420p',
    
       level: 51,
    
       color_range: 'tv',
    
       color_space: 'bt709',
    
       color_transfer: 'bt709',
    
       color_primaries: 'bt709',
    
       chroma_location: 'left',
    
       field_order: 'unknown',
    
       timecode: 'N/A',
    
       refs: 1,
    
       is_avc: 'true',
    
       nal_length_size: 4,
    
       id: 'N/A',
    
       r_frame_rate: '24000/1001',
    
       avg_frame_rate: '24000/1001',
    
       time_base: '1/24000',
    
       start_pts: 0,
    
       start_time: 0,
    
       duration_ts: 4206200,
    
       duration: 175.258333,
    
       bit_rate: 11891834,
    
       max_bit_rate: 'N/A',
    
       bits_per_raw_sample: 8,
    
       nb_frames: 4202,
    
       nb_read_frames: 'N/A',
    
       nb_read_packets: 'N/A',
    
       tags: [Object],
    
       disposition: [Object] },
    
     { index: 1,
    
       codec_name: 'aac',
    
       codec_long_name: 'AAC (Advanced Audio Coding)',
    
       profile: 'LC',
    
       codec_type: 'audio',
    
       codec_time_base: '1/48000',
    
       codec_tag_string: 'mp4a',
    
       codec_tag: '0x6134706d',
    
       sample_fmt: 'fltp',
    
       sample_rate: 48000,
    
       channels: 2,
    
       channel_layout: 'stereo',
    
       bits_per_sample: 0,
    
       id: 'N/A',
    
       r_frame_rate: '0/0',
    
       avg_frame_rate: '0/0',
    
       time_base: '1/48000',
    
       start_pts: 0,
    
       start_time: 0,
    
       duration_ts: 8414160,
    
       duration: 175.295,
    
       bit_rate: 256000,
    
       max_bit_rate: 262152,
    
       bits_per_raw_sample: 'N/A',
    
       nb_frames: 8217,
    
       nb_read_frames: 'N/A',
    
       nb_read_packets: 'N/A',
    
       tags: [Object],
    
       disposition: [Object] } ],
    
  format: 
    
   { filename: '/media/trex/safe1/Development/app/videos/test/440386842.mp4',
    
     nb_streams: 2,
    
     nb_programs: 0,
    
     format_name: 'mov,mp4,m4a,3gp,3g2,mj2',
    
     format_long_name: 'QuickTime / MOV',
    
     start_time: 0,
    
     duration: 175.295,
    
     size: 266214940,
    
     bit_rate: 12149345,
    
     probe_score: 100,
    
     tags: 
    
      { major_brand: 'mp42',
    
        minor_version: '0',
    
        compatible_brands: 'mp42mp41isomavc1',
    
        creation_time: '2015-11-15T19:30:49.000000Z' } },
    
  chapters: [] }

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