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  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 est la première version de MediaSPIP stable.
    Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • XMP PHP

    13 mai 2011, par

    Dixit Wikipedia, XMP signifie :
    Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
    Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
    XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

Sur d’autres sites (14044)

  • Solved : ffmpeg : How can a MOV with transparent background be created ?

    25 mars 2017, par Mat

    (Remark : the error sat, as usual, between back-rest and keyboard. Thanks, Mulvya !)

    Hi, specialists !

    I’m trying - with no success at all - to convert the green pixels of a background into transparent ones and output the result as clip with ffmpeg. N.b. I do not want to lay the clip over anything ; I’m not having a problem with that. What I want is a clip with transparent background for the OpenShot video editor (the chromakey filter of which doesn’t work satisfyingly).

    What I have tried (amongst a felt 1 zillion other things over the last 15 hrs.) was

    ffmpeg.exe -i in.mov -vf chromakey=0x008001:0.115:0.0 -c:v qtrle out.mov

    but the pixels simply would not be transparent. Seemingly, nothing happens. I reckon the filter is ok, because it works fine in a complex chain (overlaying a background image).

    The output of ffprompt -show_stream -show_format of out.mov is as follows :

    [STREAM]
    
index=0
    
codec_name=qtrle
    
codec_long_name=QuickTime Animation (RLE) video
    
profile=unknown
    
codec_type=video
    
codec_time_base=1/30
    
codec_tag_string=rle
    
codec_tag=0x20656c72
    
width=1920
    
height=1080
    
coded_width=1920
    
coded_height=1080
    
has_b_frames=0
    
sample_aspect_ratio=1:1
    
display_aspect_ratio=16:9
    
pix_fmt=bgra
    
level=-99
    
color_range=N/A
    
color_space=unknown
    
color_transfer=unknown
    
color_primaries=unknown
    
chroma_location=unspecified
    
field_order=progressive
    
timecode=N/A
    
refs=1
    
id=N/A
    
r_frame_rate=30/1
    
avg_frame_rate=30/1
    
time_base=1/15360
    
start_pts=0
    
start_time=0.000000
    
duration_ts=54789
    
duration=3.566992
    
bit_rate=822383192
    
max_bit_rate=N/A
    
bits_per_raw_sample=N/A
    
nb_frames=107
    
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:language=eng
    
TAG:handler_name=DataHandler
    
TAG:encoder=Lavc57.64.101 qtrle
    
[/STREAM]
    
[STREAM]
    
index=1
    
codec_name=aac
    
codec_long_name=AAC (Advanced Audio Coding)
    
profile=LC
    
codec_type=audio
    
codec_time_base=1/44100
    
codec_tag_string=mp4a
    
codec_tag=0x6134706d
    
sample_fmt=fltp
    
sample_rate=44100
    
channels=2
    
channel_layout=stereo
    
bits_per_sample=0
    
id=N/A
    
r_frame_rate=0/0
    
avg_frame_rate=0/0
    
time_base=1/44100
    
start_pts=926
    
start_time=0.020998
    
duration_ts=157481
    
duration=3.570998
    
bit_rate=132103
    
max_bit_rate=132103
    
bits_per_raw_sample=N/A
    
nb_frames=153
    
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:language=eng
    
TAG:handler_name=DataHandler
    
[/STREAM]
    
[FORMAT]
    
filename=out.mov
    
nb_streams=2
    
nb_programs=0
    
format_name=mov,mp4,m4a,3gp,3g2,mj2
    
format_long_name=QuickTime / MOV
    
start_time=0.000000
    
duration=3.567000
    
size=366708874
    
bit_rate=822447712
    
probe_score=100
    
TAG:major_brand=qt
    
TAG:minor_version=512
    
TAG:compatible_brands=qt
    
TAG:encoder=Lavf57.56.101
    
[/FORMAT]

    I have a "sample" clip which shows the behaviour I want, with the following stream and information :

    [STREAM]
    
index=0
    
codec_name=qtrle
    
codec_long_name=QuickTime Animation (RLE) video
    
profile=unknown
    
codec_type=video
    
codec_time_base=1/24
    
codec_tag_string=rle
    
codec_tag=0x20656c72
    
width=1920
    
height=1080
    
coded_width=1920
    
coded_height=1080
    
has_b_frames=0
    
sample_aspect_ratio=0:1
    
display_aspect_ratio=0:1
    
pix_fmt=bgra
    
level=-99
    
color_range=N/A
    
color_space=unknown
    
color_transfer=unknown
    
color_primaries=unknown
    
chroma_location=unspecified
    
field_order=progressive
    
timecode=N/A
    
refs=1
    
id=N/A
    
r_frame_rate=24/1
    
avg_frame_rate=24/1
    
time_base=1/12288
    
start_pts=0
    
start_time=0.000000
    
duration_ts=74760
    
duration=6.083984
    
bit_rate=49226848
    
max_bit_rate=N/A
    
bits_per_raw_sample=N/A
    
nb_frames=146
    
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:language=eng
    
TAG:handler_name=DataHandler
    
TAG:encoder=Lavc57.24.102 qtrle
    
[/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=293856
    
duration=6.122000
    
bit_rate=53537
    
max_bit_rate=128000
    
bits_per_raw_sample=N/A
    
nb_frames=288
    
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:language=eng
    
TAG:handler_name=DataHandler
    
[/STREAM]
    
[FORMAT]
    
filename=templateOK.mov
    
nb_streams=2
    
nb_programs=0
    
format_name=mov,mp4,m4a,3gp,3g2,mj2
    
format_long_name=QuickTime / MOV
    
start_time=0.000000
    
duration=6.144000
    
size=37478506
    
bit_rate=48800138
    
probe_score=100
    
TAG:major_brand=qt
    
TAG:minor_version=512
    
TAG:compatible_brands=qt
    
TAG:encoder=Lavf57.25.100
    
[/FORMAT]

    and I simply am not able to spot the relevant difference.

    Any suggestions would be highly appreciated !

    Cheers,

    Mat

    The input, output and the working template can be found here.

    (The security issue you might see when clicking the link comes from the server certificate being self-signed. You can accept a temporal exception. Btw : The ridiculous file size of the output file will be the next nut to crack. Probably s.t. about compression.)

  • ffmpeg won't recognize x265 options (solved)

    31 janvier 2017, par cdpp

    So basically trying to use ffmpeg’s built-in x265 library to process .VOB files through h.265codec.

    What I understood from the ffmpeg documentation was that :

    -c:v libx265 tells ffmpeg to use the h.265 codec for video streams

    -x265-params passes options to x265 encoder instead of ffmpeg

    But whenever try to run the command, ffmpeg doesn’t seem to recognize/pass the options to x265.

    It gives the error

    Unrecognized option '-y4m'.<br />
    Error splitting the argument list: Option not found

    What gives ?

    Here’s the command (edited spacing) :

    C:\ffmpeg (20170123-e371f03-win64-static)\bin> 
    
   ffmpeg -i concat:'input1.VOB'\'input.VOB'
    
   -map 0:v -map 0:a -r 24000/1001 -f yuv4mpegpipe 
    
   -c:v libx265 -x265-params 
    
   --y4m --fps 24000/1001 -p veryslow --open-gop --bframes 16 
    
   --b-p yramid --bitrate 2500 --rect --amp --aq-mode 3 --no-sao --qcomp 0.75 
    
   --no-strong -intra-smoothing --psy-rd 1.6 --psy-rdoq 5.0 --rdoq-level 1 
    
   --tu-inter-depth 4 --tu-intra-depth 4 --ctu 32 --max-tu-size 16 --pass 1 
    
   --slow-firstpass --stats v. stats --sar 1 --range full 'E:\output.hevc'
    

    

    

    

    
ffmpeg version N-83195-ge371f03 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 5.4.0 (GCC)
    
  configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --e
    
nable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --
    
enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv
    
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-li
    
bfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug -
    
-enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enabl
    
e-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-li
    
bsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolam
    
e --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
    
 --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable
    
-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --ena
    
ble-zlib
    
  libavutil      55. 44.100 / 55. 44.100
    
  libavcodec     57. 75.100 / 57. 75.100
    
  libavformat    57. 63.100 / 57. 63.100
    
  libavdevice    57.  2.100 / 57.  2.100
    
  libavfilter     6. 69.100 /  6. 69.100
    
  libswscale      4.  3.101 /  4.  3.101
    
  libswresample   2.  4.100 /  2.  4.100
    
  libpostproc    54.  2.100 / 54.  2.100
    
Unrecognized option '-y4m'.
    
Error splitting the argument list: Option not found

    Thanks in advance !

  • how to solved Build fingerprint :'samsung/a5xeltexx/a5xelte:6.0.1/MMB29KB/A510Fx:user/release-keys'error in android

    14 novembre 2016, par Virani Ashish
    Build fingerprint:'samsung/a5xeltexx/a5xelte:6.0.1/MMB29KB/A510Fx:user/release-keys
    
                                                                         Revision: "0"
    
                                                                         ABI "arm"
    
                                                                         pid 1716, tid 3690,name Thread-44811 >>> com.aspiration.gifmaker &lt;&lt;&lt;
    
                                                                         Fatal signal 11 (SIGSEGV), code 1, (SEGV_MAPERR),fault addr 0x18
    
                                                                         r0 00000018 r1 00000010 r2 c01047f0 r3 00000088
    
                                                                         r4 c0104768 r5 00000000 r6 vv589v10 r7 c89f7190
    
                                                                         r8 00000000 r9 7fffffff s1 c89f7190 fp c89f706c
    
                                                                         ip c42dd180 sp c89f7008 lr bf8a71a8 pc c00b1d00 cpse 200f0010
    

    
                                                                         backtrace :
    
                                                                            #00 pc 008f2d00 /data/app/com.aspiration.gifmaker-1/lib/arm/libvideokit.so (av_log+20)

    Build fingerprint :’samsung/a5xeltexx/a5xelte:6.0.1/MMB29KB/A510Fx:user/release-keys’error in android

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