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    21 juin 2013, par

    Présentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
    Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
    Vous pouvez personnaliser le formulaire de création d’une actualité.
    Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
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  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
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Sur d’autres sites (14451)

  • mp4 plays only sound but no video on ios

    5 avril 2018, par Chen

    I have a video that I get from a third party provide in my App, I want to play using react-native-video. It works fine on simulator, but on a real iphone 7 it has only sound but no video.

    After further research I found, when I try to airdrop/move via itunes the video to my iphone. It shows something like the following :

    enter image description here

    I have checked the codec with ffprobe and here is the output.
    ```

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'bad.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42mp41
    
    creation_time   : 2018-03-28T21:30:13.000000Z
    
  Duration: 00:00:45.55, start: 0.000000, bitrate: 1373 kb/s
    
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 1042 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    
    Metadata:
    
      creation_time   : 2018-03-28T21:30:13.000000Z
    
      handler_name    : Alias Data Handler
    
      encoder         : AVC Coding
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
    
    Metadata:
    
      creation_time   : 2018-03-28T21:30:13.000000Z
    
      handler_name    : Alias Data Handler
    
[STREAM]
    
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=1080
    
has_b_frames=1
    
sample_aspect_ratio=1:1
    
display_aspect_ratio=16:9
    
pix_fmt=yuv420p
    
level=41
    
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=0.000000
    
duration_ts=1365364
    
duration=45.512133
    
bit_rate=1042237
    
max_bit_rate=N/A
    
bits_per_raw_sample=8
    
nb_frames=1364
    
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=2018-03-28T21:30:13.000000Z
    
TAG:language=eng
    
TAG:handler_name=Alias Data 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=2184582
    
duration=45.512125
    
bit_rate=317375
    
max_bit_rate=458625
    
bits_per_raw_sample=N/A
    
nb_frames=2135
    
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=2018-03-28T21:30:13.000000Z
    
TAG:language=eng
    
TAG:handler_name=Alias Data Handler
    
[/STREAM]

    Then I tried VLC on iOS the video played without problem (it has both video and sound), except at the beginning it shows a grey pixel screen.

    enter image description here

    Next, what i did was using ffmpeg to re-encode the video stream via :

    ffmpeg -i bad.mp4 -c:a copy new.mp4

    After this new.mp4 plays with no problem.
    This is really confusing as the codec does not change and both videos works with no problem on my Mac.

    I have tried to play around with the b_frames, profile level on the new video to reproduce the problem but with no luck.

    I really do not want to process every video via ffmpeg after get it from the third party. Just wondering what might be the problem with the video ?

  • poster adjustment after getting it from video

    30 juin 2016, par Jass

    I am capturing poster from this video https://www.youtube.com/watch?v=wg-kEWsL6Xc using following code. Video can be any, I am just giving example.

    shell_exec('ffmpeg -y  -itsoffset -4  -i "'.base_path().'/assets/videos/'.$file_name.'.mp4" -vcodec mjpeg -vframes 1 -an -f rawvideo -filter:v scale=1170:ih*1170/iw "'.base_path().'/assets/videos/thumbnail/'.$file_name.'.jpg"')

    Width = 1170px,

    Height= 300px (as it is background image so it does not matter)

    But I am facing adjustment problem. Following are my current views

    First : Head is cutting, here I am using css property background : url(’completepath’) center no-repeat ;
    enter image description here

    Second : Showing black portion on top of head. This is the original image that I am getting from ffmpeg code.

    enter image description here

    My Question : But I need image like in you tube, you can notice that in all videos we can see top portion of humans without being cutting even black portion is well adjusted.

    Currently I am downloading and testing with youtube videos but in actual job seekers will make their own videos using android/iphone or any camera and will upload on our site.

    so how i can overcome this issue means show image with proper human face and body ?

    thanks in advance.

  • What is the bitrate of my audio file based on ffmpeg output ?

    21 avril 2015, par blueether

    Is it the 40kb/s under Format, or is it the 16kb/s under Stream ? What is the relationship between the Format and the Stream ?
    The below output is for a file generated using Core Audio on an iphone, with an Audio Unit. The output format was specified by an AudioStreamBasicDescription descriptor

    Updated :
    Output from ffprobe -v error -show_format -show_streams 123_1429602551009.051025.m4a :

    [STREAM]
    
index=0
    
codec_name=aac
    
codec_long_name=AAC (Advanced Audio Coding)
    
profile=LC
    
codec_type=audio
    
codec_time_base=1/8000
    
codec_tag_string=mp4a
    
codec_tag=0x6134706d
    
sample_fmt=fltp
    
sample_rate=8000
    
channels=1
    
channel_layout=mono
    
bits_per_sample=0
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/8000
    
start_pts=0
    
start_time=0.000000
    
duration_ts=43008
    
duration=5.376000
    
bit_rate=16501
    
max_bit_rate=N/A
    
bits_per_raw_sample=N/A
    
nb_frames=42
    
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
    
TAG:creation_time=1970-04-16 22:36:01
    
TAG:language=eng
    
[/STREAM]
    
[FORMAT]
    
filename=123_1429602551009.051025.m4a
    
nb_streams=1
    
nb_programs=0
    
format_name=mov,mp4,m4a,3gp,3g2,mj2
    
format_long_name=QuickTime / MOV
    
start_time=0.000000
    
duration=5.376000
    
size=27473
    
bit_rate=40882
    
probe_score=100
    
TAG:major_brand=M4A
    
TAG:minor_version=0
    
TAG:compatible_brands=M4A mp42isom
    
TAG:creation_time=1970-04-16 22:36:01
    
TAG:iTunSMPB= 00000000 00000840 00000361 0000000000009C5F 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    
[/FORMAT]

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