Recherche avancée

Médias (0)

Mot : - Tags -/metadatas

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (111)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, 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 (...)

  • 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 (...)

Sur d’autres sites (11807)

  • ffmpeg generate thumbnails on GPU

    22 juin 2018, par Oleksandr Kyrpa

    I try to generate thumbnails with acceleration on GPU, so compile ffmpeg 3.4.1 and run command :

    ./ffmpeg  -i ~/Videos/1080.mp4 -vf "hwupload_cuda,thumbnail_cuda=100,scale_cuda=107:60,hwdownload,format=yuv420p" -vframes 1 -y ~/Videos/thumbs/thumb%03d.jpg

    But I get wrong output picture (the color of thumbnail is green) :

    enter image description here

    Correct image must be black.
    How to make first image with correct color ?

    enter image description here

    log : -loglevel verbose

    ffmpeg version N-89707-g89b84cb Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
    
  configuration: --cpu=native --enable-pthreads --extra-version=hd --enable-gnutls --enable-vaapi --enable-vdpau --enable-nonfree --enable-gpl --enable-swscale --enable-libx264 --enable-version3 --enable-nvenc --enable-libnpp --enable-cuda --enable-cuvid --enable-cuda-sdk --enable-filter=scale_cuda --enable-filter=thumbnail_cuda --extra-cflags=-I/usr/local/cuda-8.0/include --extra-ldflags=-L/usr/local/cuda-8.0/lib64
    
  libavutil      56.  7.100 / 56.  7.100
    
  libavcodec     58.  9.100 / 58.  9.100
    
  libavformat    58.  3.100 / 58.  3.100
    
  libavdevice    58.  0.100 / 58.  0.100
    
  libavfilter     7. 11.100 /  7. 11.100
    
  libswscale      5.  0.101 /  5.  0.101
    
  libswresample   3.  0.101 /  3.  0.101
    
  libpostproc    55.  0.100 / 55.  0.100
    
[h264 @ 0x392ed40] Reinit context to 1920x1088, pix_fmt: yuv420p
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/alex/Videos/1080.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    creation_time   : 2012-05-30T20:01:34.000000Z
    
  Duration: 00:01:14.21, start: 0.000000, bitrate: 5476 kb/s
    
    Stream #0:0(und): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1920x1080 (1920x1088), 5321 kb/s, 29.97 fps, 29.97 tbr, 60k tbn, 59.94 tbc (default)
    
    Metadata:
    
      creation_time   : 1970-01-01T00:00:00.000000Z
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 152 kb/s (default)
    
    Metadata:
    
      creation_time   : 2012-05-30T20:01:34.000000Z
    
      handler_name    : IsoMedia File Produced by Google, 5-11-2011
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
    
Press [q] to stop, [?] for help
    
[h264 @ 0x3a38280] Reinit context to 1920x1088, pix_fmt: yuv420p
    
[Parsed_thumbnail_cuda_1 @ 0x4e3d8c0] batch size: 100 frames
    
[graph 0 input from stream 0:0 @ 0x4e8b640] w:1920 h:1080 pixfmt:yuv420p tb:1/60000 fr:30000/1001 sar:0/1 sws_param:flags=2
    
[auto_scaler_0 @ 0x4e8ca00] w:iw h:ih flags:'bicubic' interl:0
    
[format @ 0x4e8b540] auto-inserting filter 'auto_scaler_0' between the filter 'Parsed_format_4' and the filter 'format'
    
[Parsed_scale_cuda_2 @ 0x4e89380] w:1920 h:1080 -> w:107 h:60
    
[swscaler @ 0x4ebf0c0] deprecated pixel format used, make sure you did set range correctly
    
[auto_scaler_0 @ 0x4e8ca00] w:107 h:60 fmt:yuv420p sar:0/1 -> w:107 h:60 fmt:yuvj420p sar:0/1 flags:0x4
    
Output #0, image2, to '/home/alex/Videos/thumbs/thumb%03d.jpg':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    encoder         : Lavf58.3.100
    
    Stream #0:0(und): Video: mjpeg, 1 reference frame, yuvj420p(pc, left), 107x60, q=2-31, 200 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc (default)
    
    Metadata:
    
      creation_time   : 1970-01-01T00:00:00.000000Z
    
      handler_name    : VideoHandler
    
      encoder         : Lavc58.9.100 mjpeg
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
    
[Parsed_thumbnail_cuda_1 @ 0x4e3d8c0] frame id #76 (pts_time=2.535867) selected from a set of 100 images
    
No more output streams to write to, finishing.
    
frame=    1 fps=0.9 q=3.1 Lsize=N/A time=00:00:02.56 bitrate=N/A speed=2.26x    
    
video:2kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
    
Input file #0 (/home/alex/Videos/1080.mp4):
    
  Input stream #0:0 (video): 115 packets read (134655 bytes); 101 frames decoded; 
    
  Input stream #0:1 (audio): 1 packets read (9 bytes); 
    
  Total: 116 packets (134664 bytes) demuxed
    
Output file #0 (/home/alex/Videos/thumbs/thumb%03d.jpg):
    
  Output stream #0:0 (video): 1 frames encoded; 1 packets muxed (1864 bytes); 
    
  Total: 1 packets (1864 bytes) muxed

    UPDATE, working !
    Add format=nv12 before hwupload

    -vf "format=nv12,hwupload_cuda,thumbnail_cuda,scale_cuda=1280:72‌​0,hwdownload,format=‌​nv12"

  • FFMPEG : watermark 4k Video failed

    10 janvier 2018, par Diaa Saada

    I’m using FFMPEG to watermark my videos and it is working fine when the output is 1080p or lower even if the input is 4K

    ffmpeg -i 4k.mkv -i watermark.png -filter_complex "scale=-2:1080,overlay=10:10" output1080.mp4

    But if I tried to output a 4K video

    ffmpeg -i 4k.mkv -i watermark.png -filter_complex "overlay=10:10" output4k.mp4

    I get this error message

        x264 [error]: malloc of size 26199520 failedme=00:00:00.88 bitrate=   0.0kbits/s speed=1.72x
    
Video encoding failed
    
[aac @ 0xaa42240] Qavg: 17612.034
    
[aac @ 0xaa42240] 2 frames left in the queue on closing
    
Conversion failed!

    the linux I am working on is 32x so I’m using 32 version of ffmpeg

    how can I fix this ?

  • FFmpeg, MPEG4 video rotate and Windows

    25 décembre 2017, par user3768884

    I have this kind of video recorded in some Samsung Galaxy phone (info from : "ffprobe -v error -show_format -show_streams filename.mp4")

    [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=7048499/423000000
    
codec_tag_string=avc1
    
codec_tag=0x31637661
    
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=yuv420p
    
level=40
    
color_range=unknown
    
color_space=unknown
    
color_transfer=unknown
    
color_primaries=unknown
    
chroma_location=left
    
field_order=unknown
    
timecode=N/A
    
refs=1
    
is_avc=true
    
nal_length_size=4
    
id=N/A
    
r_frame_rate=30/1
    
avg_frame_rate=211500000/7048499
    
time_base=1/90000
    
start_pts=0
    
start_time=0.000000
    
duration_ts=7048499
    
duration=78.316656
    
bit_rate=17010472
    
max_bit_rate=N/A
    
bits_per_raw_sample=8
    
nb_frames=2350
    
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:rotate=90
    
TAG:creation_time=2017-12-17T13:42:14.000000Z
    
TAG:language=eng
    
TAG:handler_name=VideoHandle
    
[SIDE_DATA]
    
side_data_type=Display Matrix
    
displaymatrix=
    
00000000:            0       65536           0
    
00000001:       -65536           0           0
    
00000002:            0           0  1073741824
    

    
rotation=-90
    
[/SIDE_DATA]
    
[/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=3772416
    
duration=78.592000
    
bit_rate=126154
    
max_bit_rate=128000
    
bits_per_raw_sample=N/A
    
nb_frames=3684
    
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=2017-12-17T13:42:14.000000Z
    
TAG:language=eng
    
TAG:handler_name=SoundHandle
    
[/STREAM]
    
[FORMAT]
    
filename=original_galaxy.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=78.592000
    
size=167808936
    
bit_rate=17081528
    
probe_score=100
    
TAG:major_brand=isom
    
TAG:minor_version=0
    
TAG:compatible_brands=isom3gp4
    
TAG:creation_time=2017-12-17T13:42:14.000000Z
    
[/FORMAT]

    Since all my media players does not support rotate-knowledge, I have turned the video over again, and at the same time slightly decreased the resolution of command "ffmpeg -i "input.mp4" -vf "scale=720:1280,transpose=0,transpose=0" -c:a copy "output.mp4""

    [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=1/60
    
codec_tag_string=avc1
    
codec_tag=0x31637661
    
width=720
    
height=1280
    
coded_width=720
    
coded_height=1280
    
has_b_frames=2
    
sample_aspect_ratio=0:1
    
display_aspect_ratio=0:1
    
pix_fmt=yuv420p
    
level=31
    
color_range=unknown
    
color_space=unknown
    
color_transfer=unknown
    
color_primaries=unknown
    
chroma_location=left
    
field_order=unknown
    
timecode=N/A
    
refs=1
    
is_avc=true
    
nal_length_size=4
    
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=1203717
    
duration=78.366992
    
bit_rate=2570692
    
max_bit_rate=N/A
    
bits_per_raw_sample=8
    
nb_frames=2351
    
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=VideoHandler
    
[/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=3772416
    
duration=78.592000
    
bit_rate=126154
    
max_bit_rate=126154
    
bits_per_raw_sample=N/A
    
nb_frames=3684
    
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=SoundHandler
    
[/STREAM]
    
[FORMAT]
    
filename=from_ffmpeg.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=78.592000
    
size=26503544
    
bit_rate=2697836
    
probe_score=100
    
TAG:major_brand=isom
    
TAG:minor_version=512
    
TAG:compatible_brands=isomiso2avc1mp41
    
TAG:encoder=Lavf57.41.100
    
[/FORMAT]

    This works very well in VLC, for example. However, Windows Media Player or Samsung TV does not play it. Windows Explorer does not even show a video thumbnail, so the video file is broken by Windows.

    Is not FFmpeg able to produce a standard MPEG4 file, or what the hell is this about ? I’ve tried all the alternatives presented, such as "-fflags +genpts", "-fflags genpts", "-movflags faststart", "-movflags +faststart", "pix_fmt=yuv420p" etc. but nothing worked.

    The sound I copied directly.

Navigation