Recherche avancée

Médias (1)

Mot : - Tags -/publicité

Autres articles (54)

  • 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 (...)

  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

  • Menus personnalisés

    14 novembre 2010, par

    MediaSPIP utilise le plugin Menus pour gérer plusieurs menus configurables pour la navigation.
    Cela permet de laisser aux administrateurs de canaux la possibilité de configurer finement ces menus.
    Menus créés à l’initialisation du site
    Par défaut trois menus sont créés automatiquement à l’initialisation du site : Le menu principal ; Identifiant : barrenav ; Ce menu s’insère en général en haut de la page après le bloc d’entête, son identifiant le rend compatible avec les squelettes basés sur Zpip ; (...)

Sur d’autres sites (3262)

  • ffmpeg hwmap SW decoded frame to OpenCL and hwmap back to h264 for SW encode

    3 novembre 2019, par Oleksandr Kyrpa

    I trying speed up process and avoid copy frames between GPU and CPU. But got error : "Segmentation fault : 11", so may be I’m doing something wrong ?

    My full ffmpeg command and log here :

    ./ffmpeg -i ../720.mp4 -init_hw_device opencl=ocl:0.1 -filter_hw_device ocl  -filter_complex "hwmap,avgblur_opencl=30,hwmap"  -c:v h264 -an -t 10 -y ../out_blur.mp4 -loglevel debug

    Output :

    ./ffmpeg -i ../720.mp4 -init_hw_device opencl=ocl:0.1 -filter_hw_device ocl  -filter_complex "hwmap,avgblur_opencl=30,hwmap"  -c:v h264 -an -t 10 -y ../out_blur.mp4 -loglevel debug
    
ffmpeg version N-95621-g53c21c2d6b Copyright (c) 2000-2019 the FFmpeg developers
    
  built with Apple LLVM version 10.0.0 (clang-1000.10.44.4)
    
  configuration: --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libfreetype --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --disable-ffplay --enable-nonfree --enable-opencl
    
  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. 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
    
Splitting the commandline.
    
Reading option '-i' ... matched as input url with argument '../720.mp4'.
    
Reading option '-init_hw_device' ... matched as option 'init_hw_device' (initialise hardware device) with argument 'opencl=ocl:0.1'.
    
Reading option '-filter_hw_device' ... matched as option 'filter_hw_device' (set hardware device used when filtering) with argument 'ocl'.
    
Reading option '-filter_complex' ... matched as option 'filter_complex' (create a complex filtergraph) with argument 'hwmap,unsharp_opencl=lx=17:ly=17:la=5,hwmap'.
    
Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'h264'.
    
Reading option '-an' ... matched as option 'an' (disable audio) with argument '1'.
    
Reading option '-t' ... matched as option 't' (record or transcode "duration" seconds of audio/video) with argument '10'.
    
Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
    
Reading option '../out_blur.mp4' ... matched as output url.
    
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'.
    
Finished splitting the commandline.
    
Parsing a group of options: global .
    
Applying option init_hw_device (initialise hardware device) with argument opencl=ocl:0.1.
    
[AVHWDeviceContext @ 0x7fbb1ec08480] 1 OpenCL platforms found.
    
[AVHWDeviceContext @ 0x7fbb1ec08480] 3 OpenCL devices found on platform "Apple".
    
[AVHWDeviceContext @ 0x7fbb1ec08480] 0.1: Apple / HD Graphics 4000
    
Applying option filter_hw_device (set hardware device used when filtering) with argument ocl.
    
Applying option filter_complex (create a complex filtergraph) with argument hwmap,unsharp_opencl=lx=17:ly=17:la=5,hwmap.
    
Applying option y (overwrite output files) with argument 1.
    
Applying option loglevel (set logging level) with argument debug.
    
Successfully parsed a group of options.
    
Parsing a group of options: input url ../720.mp4.
    
Successfully parsed a group of options.
    
Opening an input file: ../720.mp4.
    
[NULL @ 0x7fbb1f818c00] Opening '../720.mp4' for reading
    
[file @ 0x7fbb1ec3d600] Setting default whitelist 'file,crypto'
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbb1f818c00] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbb1f818c00] ISO: File Type Major Brand: isom
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbb1f818c00] Unknown dref type 0x206c7275 size 12
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbb1f818c00] Processing st: 0, edit list 0 - media time: 0, duration: 300300
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbb1f818c00] Before avformat_find_stream_info() pos: 4123312 bytes read:34929 seeks:1 nb_streams:1
    
[h264 @ 0x7fbb1f9ae800] nal_unit_type: 7(SPS), nal_ref_idc: 1
    
[h264 @ 0x7fbb1f9ae800] nal_unit_type: 8(PPS), nal_ref_idc: 1
    
[h264 @ 0x7fbb1f9ae800] nal_unit_type: 6(SEI), nal_ref_idc: 0
    
[h264 @ 0x7fbb1f9ae800] nal_unit_type: 5(IDR), nal_ref_idc: 1
    
[h264 @ 0x7fbb1f9ae800] Format yuv420p chosen by get_format().
    
[h264 @ 0x7fbb1f9ae800] Reinit context to 1280x720, pix_fmt: yuv420p
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbb1f818c00] All info found
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbb1f818c00] After avformat_find_stream_info() pos: 38244 bytes read:73125 seeks:2 frames:1
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '../720.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.33.100
    
  Duration: 00:00:10.01, start: 0.000000, bitrate: 3295 kb/s
    
    Stream #0:0(und), 1, 1/30000: Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1280x720 [SAR 1:1 DAR 16:9], 0/1, 3293 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 60k tbc (default)
    
    Metadata:
    
      handler_name    : ISO Media file produced by Google Inc. Created on: 10/24/2018.
    
Successfully opened the file.
    
[Parsed_unsharp_opencl_1 @ 0x7fbb1ec45640] Setting 'lx' to value '17'
    
[Parsed_unsharp_opencl_1 @ 0x7fbb1ec45640] Setting 'ly' to value '17'
    
[Parsed_unsharp_opencl_1 @ 0x7fbb1ec45640] Setting 'la' to value '5'
    
Parsing a group of options: output url ../out_blur.mp4.
    
Applying option c:v (codec name) with argument h264.
    
Applying option an (disable audio) with argument 1.
    
Applying option t (record or transcode "duration" seconds of audio/video) with argument 10.
    
Successfully parsed a group of options.
    
Opening an output file: ../out_blur.mp4.
    
Matched encoder 'libx264' for codec 'h264'.
    
[file @ 0x7fbb1ec44680] Setting default whitelist 'file,crypto'
    
Successfully opened the file.
    
detected 8 logical cores
    
[h264 @ 0x7fbb1f9a9800] nal_unit_type: 7(SPS), nal_ref_idc: 1
    
[h264 @ 0x7fbb1f9a9800] nal_unit_type: 8(PPS), nal_ref_idc: 1
    
Stream mapping:
    
  Stream #0:0 (h264) -> hwmap
    
  hwmap -> Stream #0:0 (libx264)
    
Press [q] to stop, [?] for help
    
cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
    
    Last message repeated 1 times
    
[h264 @ 0x7fbb1f9a9800] nal_unit_type: 6(SEI), nal_ref_idc: 0
    
[h264 @ 0x7fbb1f9a9800] nal_unit_type: 5(IDR), nal_ref_idc: 1
    
[h264 @ 0x7fbb1f9a9800] Format yuv420p chosen by get_format().
    
[h264 @ 0x7fbb1f9a9800] Reinit context to 1280x720, pix_fmt: yuv420p
    
cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
    
[h264 @ 0x7fbb1f9b7e00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
    
cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
    
[h264 @ 0x7fbb1f9cf200] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
    
cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
    
[h264 @ 0x7fbb1fa04c00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
    
cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
    
[h264 @ 0x7fbb1fa1b000] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
    
cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
    
[h264 @ 0x7fbb1fa24800] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
    
cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
    
[h264 @ 0x7fbb1fa24e00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
    
cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
    
[h264 @ 0x7fbb1fa25400] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
    
[h264 @ 0x7fbb22809200] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
    
[Parsed_unsharp_opencl_1 @ 0x7fbb1ed04e80] Setting 'lx' to value '17'
    
[Parsed_unsharp_opencl_1 @ 0x7fbb1ed04e80] Setting 'ly' to value '17'
    
[Parsed_unsharp_opencl_1 @ 0x7fbb1ed04e80] Setting 'la' to value '5'
    
[graph 0 input from stream 0:0 @ 0x7fbb1ee09040] Setting 'video_size' to value '1280x720'
    
[graph 0 input from stream 0:0 @ 0x7fbb1ee09040] Setting 'pix_fmt' to value '0'
    
[graph 0 input from stream 0:0 @ 0x7fbb1ee09040] Setting 'time_base' to value '1/30000'
    
[graph 0 input from stream 0:0 @ 0x7fbb1ee09040] Setting 'pixel_aspect' to value '1/1'
    
[graph 0 input from stream 0:0 @ 0x7fbb1ee09040] Setting 'sws_param' to value 'flags=2'
    
[graph 0 input from stream 0:0 @ 0x7fbb1ee09040] Setting 'frame_rate' to value '30000/1001'
    
[graph 0 input from stream 0:0 @ 0x7fbb1ee09040] w:1280 h:720 pixfmt:yuv420p tb:1/30000 fr:30000/1001 sar:1/1 sws_param:flags=2
    
[format @ 0x7fbb1ed0a080] Setting 'pix_fmts' to value 'yuv420p|yuvj420p|yuv422p|yuvj422p|yuv444p|yuvj444p|nv12|nv16|nv21|yuv420p10le|yuv422p10le|yuv444p10le|nv20le'
    
[AVFilterGraph @ 0x7fbb21004240] query_formats: 7 queried, 6 merged, 0 already done, 0 delayed
    
[Parsed_hwmap_2 @ 0x7fbb1ed03e00] picking yuv420p out of 13 ref:opencl alpha:1
    
[Parsed_hwmap_0 @ 0x7fbb1ed09940] Configure hwmap yuv420p -> opencl.
    
[Parsed_hwmap_2 @ 0x7fbb1ed03e00] Configure hwmap opencl -> yuv420p.
    
[hwmap @ 0x7fbb1ed03940] Filter input: yuv420p, 1280x720 (0).
    
Segmentation fault: 11

  • Process substitution error : Impossible to open /dev/fd/11 : No such file or directory

    3 novembre 2019, par theonlygusti

    My shell is zsh 5.7.1 (x86_64-apple-darwin18.2.0). I am on macOS Catalina 10.15.

    I just tried to run

    ffmpeg -f concat -i <(for i in {1..6}; do printf "file '%s'\n" '_-cyshqII4UOw.webm'; done) everyne.mp4

    But got this error (from ffmpeg)

    Impossible to open '/dev/fd/_-cyshqII4UOw.webm'
    
/dev/fd/11: No such file or directory

    Creating a file myself works

    for i in {1..6}; do printf "file '%s'\n" '_-cyshqII4UOw.webm' >> files.txt; done
    
ffmpeg -f concat -i files.txt everyne.mp4

    Why doesn’t the process substitution method work ? And how can I ensure it works next time ?

  • ffmpeg does not copy custom metadata

    20 juin 2015, par e110c0

    I’m trying to fix some videos made with an iDevice. The videos have a rotation in the metadata which is only understood by Apple and its software but noone else. Fixing this is quite simple, but I also would like to keep the other metadata in the files like the geolocation.

    I tried a couple of versions, all with the same result, e.g. :

    ffmpeg -i input.mov -vf vflip,hflip -map_metadata 0 -metadata:s:v:0 rotate=0  -acodec copy output.mp4

    This should work, it already gives the correct preview of metadata :

    ffmpeg version 1.1.2 Copyright (c) 2000-2013 the FFmpeg developers
    
built on Feb  8 2013 23:55:22 with Apple clang version 4.0 (tags/Apple/clang-421.0.60) (based on LLVM 3.1svn)
    
configuration: --prefix=/usr/local/Cellar/ffmpeg/1.1.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --cc=cc --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid
    
libavutil      52. 13.100 / 52. 13.100
    
libavcodec     54. 86.100 / 54. 86.100
    
libavformat    54. 59.106 / 54. 59.106
    
libavdevice    54.  3.102 / 54.  3.102
    
libavfilter     3. 32.100 /  3. 32.100
    
libswscale      2.  1.103 /  2.  1.103
    
libswresample   0. 17.102 /  0. 17.102
    
libpostproc    52.  2.100 / 52.  2.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '2013-02-17 00.39.36.mov':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 0
    
    compatible_brands: qt  
    
    creation_time   : 2013-02-16 23:39:25
    
    model           : iPhone 5
    
    model-deu       : iPhone 5
    
    encoder         : 6.1
    
    encoder-deu     : 6.1
    
    date            : 2013-02-17T00:39:25+0100
    
    date-deu        : 2013-02-17T00:39:25+0100
    
    location        : +48.2683+007.7205+172.710/
    
    location-deu    : +48.2683+007.7205+172.710/
    
    make            : Apple
    
    make-deu        : Apple
    
  Duration: 00:00:09.67, start: 0.000000, bitrate: 16764 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 16696 kb/s, 24 fps, 24 tbr, 600 tbn, 1200 tbc
    
    Metadata:
    
      rotate          : 180
    
      creation_time   : 2013-02-16 23:39:25
    
      handler_name    : Core Media Data Handler
    
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 61 kb/s
    
    Metadata:
    
      creation_time   : 2013-02-16 23:39:25
    
      handler_name    : Core Media Data Handler
    
w:1920 h:1080 pixfmt:yuv420p tb:1/600 fr:24/1 sar:0/1 sws_param:flags=2
    
[libx264 @ 0x7fc248829a00] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
    
[libx264 @ 0x7fc248829a00] profile High, level 4.0
    
[libx264 @ 0x7fc248829a00] 264 - core 125 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=24 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    

    
Output #0, mp4, to 'output.mp4':
    
Metadata:
    
  major_brand     : qt  
    
  minor_version   : 0
    
  compatible_brands: qt  
    
  creation_time   : 2013-02-16 23:39:25
    
  model           : iPhone 5
    
  model-deu       : iPhone 5
    
  encoder-deu     : 6.1
    
  date            : 2013-02-17T00:39:25+0100
    
  date-deu        : 2013-02-17T00:39:25+0100
    
  location        : +48.2683+007.7205+172.710/
    
  location-deu    : +48.2683+007.7205+172.710/
    
  make            : Apple
    
  make-deu        : Apple
    
  encoder         : Lavf54.59.106
    
Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1920x1080, q=-1--1, 12288 tbn, 24 tbc
    
Metadata:
    
  handler_name    : Core Media Data Handler
    
  creation_time   : 2013-02-16 23:39:25
    
  rotate          : 0
    
Stream #0:1(und): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, mono, 61 kb/s
    
Metadata:
    
  creation_time   : 2013-02-16 23:39:25
    
  handler_name    : Core Media Data Handler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> libx264)
    
  Stream #0:1 -> #0:1 (copy)

    But the resulting file keeps only some of these metadata tags :

    ffmpeg -i output.mp4

    shows :

    fmpeg version 1.1.2 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Feb  8 2013 23:55:22 with Apple clang version 4.0 (tags/Apple/clang-421.0.60) (based on LLVM 3.1svn)
    
configuration: --prefix=/usr/local/Cellar/ffmpeg/1.1.2 --enable-shared --enable-pthreads -  -enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --cc=cc --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid
    
libavutil      52. 13.100 / 52. 13.100
    
libavcodec     54. 86.100 / 54. 86.100
    
libavformat    54. 59.106 / 54. 59.106
    
libavdevice    54.  3.102 / 54.  3.102
    
libavfilter     3. 32.100 /  3. 32.100
    
libswscale      2.  1.103 /  2.  1.103
    
libswresample   0. 17.102 /  0. 17.102
    
libpostproc    52.  2.100 / 52.  2.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':
    
Metadata:
    
  major_brand     : isom
    
  minor_version   : 512
    
  compatible_brands: isomiso2mp41
    
  creation_time   : 2013-02-16 23:39:25
    
  date            : 2013-02-17T00:39:25+0100
    
  encoder         : Lavf54.59.106
    
Duration: 00:00:09.67, start: 0.000000, bitrate: 3286 kb/s
    
  Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 3219 kb/s, 24 fps, 24 tbr, 12288 tbn, 24 tbc
    
  Metadata:
    
    creation_time   : 2013-02-16 23:39:25
    
    handler_name    : VideoHandler
    
  Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 61 kb/s
    
  Metadata:
    
    creation_time   : 2013-02-16 23:39:25
    
    handler_name    : SoundHandler

    I also tried to add the one tag I’m interested in by hand with

    -metadata:g location=+48.2683+007.7205+172.710/

    with no change in the result.

    Output as .mov doesn’t change anything, neither.

    Is there any trick to add non-standard metadata ? How do I get the location back in there ?

    Thanks in advance to anyone who can give some insight on this.

Navigation