Recherche avancée

Médias (91)

Autres articles (84)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

  • Le plugin : Gestion de la mutualisation

    2 mars 2010, par

    Le plugin de Gestion de mutualisation permet de gérer les différents canaux de mediaspip depuis un site maître. Il a pour but de fournir une solution pure SPIP afin de remplacer cette ancienne solution.
    Installation basique
    On installe les fichiers de SPIP sur le serveur.
    On ajoute ensuite le plugin "mutualisation" à la racine du site comme décrit ici.
    On customise le fichier mes_options.php central comme on le souhaite. Voilà pour l’exemple celui de la plateforme mediaspip.net :
    < ?php (...)

  • 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 (11718)

  • Get Timecode from MP4 generated in Adobe Premiere / Encoder in Python and FFMPEG

    3 novembre 2019, par russellaugust

    I’m writing a script that needs to either convert or re-container an MP4 as an MOV with timecode.

    I have an MP4 generated from Adobe Premiere. If I bring that file back into Premiere, I have timecode. I can see it so I know it is there.

    I can’t seem to extract the timecode track from the MP4. I’ve looked everywhere online and found some discussions around it, but no actual success in extracting the timecode.

    I’ve been using ffprobe to see if there’s any mention of the timecode in the MP4, but having no luck. I’ve tried PyMediaInfo with no success.

    Here’s what ffprobe shows :

    ffprobe version 4.2.1 Copyright (c) 2007-2019 the FFmpeg developers
    
  built with Apple clang version 11.0.0 (clang-1100.0.33.8)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.1_1 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-13.jdk/Contents/Home/include/darwin -fno-stack-check' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
    
  libavutil      56. 31.100 / 56. 31.100
    
  libavcodec     58. 54.100 / 58. 54.100
    
  libavformat    58. 29.100 / 58. 29.100
    
  libavdevice    58.  8.100 / 58.  8.100
    
  libavfilter     7. 57.100 /  7. 57.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  5.100 /  5.  5.100
    
  libswresample   3.  5.100 /  3.  5.100
    
  libpostproc    55.  5.100 / 55.  5.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'demo_SequenceV3.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42mp41
    
    creation_time   : 2019-11-01T23:34:45.000000Z
    
  Duration: 00:00:27.69, start: 0.000000, bitrate: 10463 kb/s
    
    Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 2304x1152 [SAR 1:1 DAR 2:1], 10142 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 48k tbc (default)
    
    Metadata:
    
      creation_time   : 2019-11-01T23:34:45.000000Z
    
      handler_name    : ?Mainconcept Video Media Handler
    
      encoder         : AVC Coding
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
    
    Metadata:
    
      creation_time   : 2019-11-01T23:34:46.000000Z
    
      handler_name    : #Mainconcept MP4 Sound Media Handler
    
[STREAM]
    
index=0
    
codec_name=h264
    
codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
    
profile=Main
    
codec_type=video
    
codec_time_base=1001/48000
    
codec_tag_string=avc1
    
codec_tag=0x31637661
    
width=2304
    
height=1152
    
coded_width=2304
    
coded_height=1152
    
has_b_frames=0
    
sample_aspect_ratio=1:1
    
display_aspect_ratio=2:1
    
pix_fmt=yuv420p
    
level=50
    
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=0.000000
    
duration_ts=663663
    
duration=27.652625
    
bit_rate=10142082
    
max_bit_rate=N/A
    
bits_per_raw_sample=8
    
nb_frames=663
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
DISPOSITION:default=1
    
DISPOSITION:dub=0
    
DISPOSITION:original=0
    
DISPOSITION:comment=0
    
DISPOSITION:lyrics=0
    
DISPOSITION:karaoke=0
    
DISPOSITION:forced=0
    
DISPOSITION:hearing_impaired=0
    
DISPOSITION:visual_impaired=0
    
DISPOSITION:clean_effects=0
    
DISPOSITION:attached_pic=0
    
DISPOSITION:timed_thumbnails=0
    
TAG:creation_time=2019-11-01T23:34:45.000000Z
    
TAG:language=eng
    
TAG:handler_name=Mainconcept Video Media Handler
    
TAG:encoder=AVC Coding
    
[/STREAM]
    
[STREAM]
    
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=0.000000
    
duration_ts=1327326
    
duration=27.652625
    
bit_rate=317375
    
max_bit_rate=335623
    
bits_per_raw_sample=N/A
    
nb_frames=1298
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
DISPOSITION:default=1
    
DISPOSITION:dub=0
    
DISPOSITION:original=0
    
DISPOSITION:comment=0
    
DISPOSITION:lyrics=0
    
DISPOSITION:karaoke=0
    
DISPOSITION:forced=0
    
DISPOSITION:hearing_impaired=0
    
DISPOSITION:visual_impaired=0
    
DISPOSITION:clean_effects=0
    
DISPOSITION:attached_pic=0
    
DISPOSITION:timed_thumbnails=0
    
TAG:creation_time=2019-11-01T23:34:46.000000Z
    
TAG:language=eng
    
TAG:handler_name=#Mainconcept MP4 Sound Media Handler
    
[/STREAM]
    
[FORMAT]
    
filename=demo_SequenceV3.mp4
    
nb_streams=2
    
nb_programs=0
    
format_name=mov,mp4,m4a,3gp,3g2,mj2
    
format_long_name=QuickTime / MOV
    
start_time=0.000000
    
duration=27.690667
    
size=36216937
    
bit_rate=10463290
    
probe_score=100
    
TAG:major_brand=mp42
    
TAG:minor_version=0
    
TAG:compatible_brands=mp42mp41
    
TAG:creation_time=2019-11-01T23:34:45.000000Z
    
[/FORMAT]

    And here was what I started experimenting with in Python.

    from pymediainfo import MediaInfo
    

    
media_info = MediaInfo.parse('demo_SequenceV3.mp4')
    
for track in media_info.tracks:
    
    if track.bit_rate is not None:
    
        print ("%s: %s" % (track.track_type, track.bit_rate))
    
    else:
    
        print ("""%s tracks do not have bit rate associated with them.""" % track.track_type)

    I know I’m not using MediaInfo correctly, but I couldn’t find any documentation on timecode, and to be honest I’m pretty confident it’ll just use FFMPEG’s system of searching for a data track that doesn’t appear to exist.

    Anyone here know enough about this to either get it working or to point me in the right direction ?

    The goal is to re-wrap an MP4 as an MOV and translate the timecode so it is back where it normally is on the MOV.

    EDIT : here is an example MP4 that I need to extract the timecode from :

    https://www.dropbox.com/s/a1euiumiapkpzhn/timecode_demo.mp4?dl=0

    And as you can see in this image, the MP4 does have timecode that is being read by Premiere on the bottom left of frame. TC starts at 10:11:12:13.

    https://www.dropbox.com/s/pafqicnnsqu93rl/timecode_window_in_premiere.png

  • FFmpeg giving me failed to open segment error. Trying to parse .wav file into 30-second files

    7 novembre 2019, par Requiem_7

    Here is the command I used and the output when I try and parse the .wav file into 30-second clips :

    C:\Users\hmkur>ffmpeg -i C:\Users\hmkur\Desktop\Python\Transcribing_Audio\source\valve.wav -f segment -segment_time 30 -c copy parts/out%09d.wav
    
ffmpeg version git-2019-11-05-c54268c Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 9.2.1 (GCC) 20191010
    
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
    
  libavutil      56. 35.101 / 56. 35.101
    
  libavcodec     58. 60.100 / 58. 60.100
    
  libavformat    58. 34.101 / 58. 34.101
    
  libavdevice    58.  9.100 / 58.  9.100
    
  libavfilter     7. 66.100 /  7. 66.100
    
  libswscale      5.  6.100 /  5.  6.100
    
  libswresample   3.  6.100 /  3.  6.100
    
  libpostproc    55.  6.100 / 55.  6.100
    
[wav @ 0000023133098a00] Discarding ID3 tags because more suitable tags were found.
    
Guessed Channel Layout for Input Stream #0.0 : stereo
    
Input #0, wav, from 'C:\Users\hmkur\Desktop\Python\Transcribing_Audio\source\valve.wav':
    
  Metadata:
    
    title           : valve
    
    encoder         : Lavf58.20.100 (libsndfile-1.0.24)
    
  Duration: 00:06:47.20, bitrate: 1411 kb/s
    
    Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
    
[segment @ 00000231334d18c0] Opening 'parts/out000000000.wav' for writing
    
[segment @ 00000231334d18c0] Failed to open segment 'parts/out000000000.wav'
    
Could not write header for output file #0 (incorrect codec parameters ?): No such file or directory
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
    Last message repeated 1 times

  • ffmpeg complex filtering : how to get around

    19 janvier 2020, par Melvin Roest

    Alright, I have my own compiled ffmpeg with --enable-lv2. This allows for 3rd-party plugins to work. The plugin I use is : https://github.com/lucianodato/speech-denoiser it’s a plugin that wraps around this RNN noise reduction library : https://github.com/GregorR/rnnoise-models

    The following commands work :

    (1) ffmpeg -i input.mov -filter_complex '[0:a]lv2=plugin=https\\://github.com/lucianodato/speech-denoiser[audio]' -map "[audio]" output.wav

    (2) ffmpeg -i input.mov -filter_complex '[0:v]copy[video]' -map "[video]" output.mov

    But when I do the combination, that doesn’t work.

    ffmpeg -i input.mov -filter_complex '[0:a]lv2=plugin=https\\://github.com/lucianodato/speech-denoiser[audio];[0:v]copy[video]' -map "[audio]" -map "[video]" output.mov

    I think the error is essentially this :

    Channel layout change is not supported
    
Error while filtering: Not yet implemented in FFmpeg, patches welcome
    
Failed to inject frame into filter network: Not yet implemented in FFmpeg, patches welcome
    
Error while processing the decoded data for stream #0:0

    My guess : this 3rd-party filter is not configure to work with any other output stream other than audio.

    My question : can I somehow trick this 3rd-party plugin that it is outputting to an audio file, while still outputting everything to a video file ?

    Note : I know, I can simply split this up in 2 commands and be done with it, so I’m wondering if I can accomplish this via one ffmpeg command. How I would split it up in 2 commands is as follows :

    ffmpeg -i out_cropped.mov -af 'lv2=plugin=https\\://github.com/lucianodato/speech-denoiser' -vcodec copy out_cropped_denoised.wav 
    

    
&amp;&amp;
    

    
ffmpeg -i out_cropped.mov -i out_cropped_denoised.wav -c:v copy -map 0:v:0 -map 1:a:0 out_cropped_denoised.mov

    But I want to be able to put it all in one complex filter (ideally) or at least in one ffmpeg command.

    Appendix : here is the full interaction

    ffmpeg -i input.mov -filter_complex '[0:a]lv2=plugin=https\\://github.com/lucianodato/speech-denoiser[audio];[0:v]copy[video]' -map "[audio]" -map "[video]" output.mov
    
ffmpeg version N-95577-g68f623d644 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with Apple clang version 11.0.0 (clang-1100.0.33.8)
    
  configuration: --prefix=/usr/local --enable-gpl --enable-nonfree --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libopus --enable-libxvid --enable-lv2 --samples=fate-suite/
    
  libavutil      56. 35.101 / 56. 35.101
    
  libavcodec     58. 60.100 / 58. 60.100
    
  libavformat    58. 33.100 / 58. 33.100
    
  libavdevice    58.  9.100 / 58.  9.100
    
  libavfilter     7. 65.100 /  7. 65.100
    
  libswscale      5.  6.100 /  5.  6.100
    
  libswresample   3.  6.100 /  3.  6.100
    
  libpostproc    55.  6.100 / 55.  6.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mov':
    
  Metadata:
    
    major_brand     : qt
    
    minor_version   : 512
    
    compatible_brands: qt
    
    encoder         : Lavf58.29.100
    
  Duration: 00:16:19.11, start: 0.000000, bitrate: 1341 kb/s
    
    Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1080x960, 1262 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    
    Metadata:
    
      handler_name    : Core Media Video
    
      encoder         : Lavc58.54.100 libx264
    
    Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 69 kb/s (default)
    
    Metadata:
    
      handler_name    : Core Media Audio
    
File 'output.mov' already exists. Overwrite? [y/N] y

    #ote : I typed yes and then this came.

    Stream mapping:
    
  Stream #0:0 (h264) -> copy
    
  Stream #0:1 (aac) -> lv2
    
  lv2 -> Stream #0:0 (aac)
    
  copy -> Stream #0:1 (libx264)
    
Press [q] to stop, [?] for help
    
[out_0_0 @ 0x7fa6811066c0] Channel layout change is not supported
    
Error while filtering: Not yet implemented in FFmpeg, patches welcome
    
Failed to inject frame into filter network: Not yet implemented in FFmpeg, patches welcome
    
Error while processing the decoded data for stream #0:0

Navigation