Recherche avancée

Médias (1)

Mot : - Tags -/publishing

Autres articles (56)

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

Sur d’autres sites (8819)

  • ffmpeg image concat file with different file extensions

    4 juillet 2018, par Rich

    I’ve been working with ffmpeg and I have got it to work perfectly quite a few times, but as of recent I am running into an issue where all the images from my text file arent used.

    My text file looks like -

    ffconcat version 1.0
    
file 'gallery-house-77-west-55th-street-01.jpg'
    
duration 4.44
    
file 'img03.jpg'
    
duration 4.44
    
file 'inside.png'
    
duration 4.44
    
file 'placeholder.png'

    (amount of files, file names and extensions will always vary)

    And I’ve tried several combinations but as of now my ffmpeg function looks like —

    ffmpeg -i audio.mp3 -safe 0 -f concat -i paths.txt -c:a copy -c:v libx264 \
    
-vf "scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:(ow-iw)/2:(oh-ih)/2,fps=25,format=yuv420p" -vsync vfr -movflags +faststart -y output.mp4 2>&1');

    When trying to run it, the video seems to convert but has various weird behaviors - sometimes only the middle file(image) in the list is shown or the first 2 only are shown/rendered.

    The audio is playing correctly though.

    I’ve tried setting the framerate for the input and I also tried setting it for the output but it leads to more strange behavior.

    This is what is echoed when running my above ffmpeg command -

     libavutil      56. 15.100 / 56. 15.100
    
  libavcodec     58. 19.100 / 58. 19.100
    
  libavformat    58. 13.100 / 58. 13.100
    
  libavdevice    58.  4.100 / 58.  4.100
    
  libavfilter     7. 18.100 /  7. 18.100
    
  libswscale      5.  2.100 /  5.  2.100
    
  libswresample   3.  2.100 /  3.  2.100
    
  libpostproc    55.  2.100 / 55.  2.100
    
[mp3 @ 0xb46780] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from 'audio.mp3':
    
  Metadata:
    
    encoder         : Lavf57.71.100
    
  Duration: 00:00:19.98, start: 0.000000, bitrate: 48 kb/s
    
    Stream #0:0: Audio: mp3, 22050 Hz, mono, fltp, 48 kb/s
    
Input #1, concat, from 'paths.txt':
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #1:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 754x424 [SAR 72:72 DAR 377:212], 25 tbr, 25 tbn, 25 tbc
    
Stream mapping:
    
  Stream #1:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    
  Stream #0:0 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[swscaler @ 0xba25c0] deprecated pixel format used, make sure you did set range correctly
    
[libx264 @ 0xb710c0] using SAR=3393/3392
    
[libx264 @ 0xb710c0] using cpu capabilities: none!
    
[libx264 @ 0xb710c0] profile High, level 3.1
    
[libx264 @ 0xb710c0] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=22 lookahead_threads=3 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=25 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:
    
    encoder         : Lavf58.13.100
    
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 3393:3392 DAR 377:212], q=-1--1, 25 fps, 12800 tbn, 25 tbc
    
    Metadata:
    
      encoder         : Lavc58.19.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
    Stream #0:1: Audio: mp3 (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 48 kb/s
    
[swscaler @ 0xb93140] deprecated pixel format used, make sure you did set range correctly
    
[swscaler @ 0xb93140] Warning: data is not aligned! This can lead to a speed loss
    
[mjpeg @ 0xb6e200] mjpeg: unsupported coding type (cd)
    
[mjpeg @ 0xb6e200] mjpeg: unsupported coding type (c8)
    
[mjpeg @ 0xb6e200] Found EOI before any SOF, ignoring
    
[mjpeg @ 0xb6e200] mjpeg: unsupported coding type (c7)
    
Error while decoding stream #1:0: Invalid data found when processing input
    
[mjpeg @ 0xb6e200] invalid id 94
    
Error while decoding stream #1:0: Invalid data found when processing input
    
[mp4 @ 0xb6f8c0] Starting second pass: moving the moov atom to the beginning of the file
    
frame=    1 fps=0.0 q=28.0 Lsize=     179kB time=00:00:19.95 bitrate=  73.6kbits/s speed=44.1x    
    
video:58kB audio:117kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.446521%
    
[libx264 @ 0xb710c0] frame I:1     Avg QP:28.86  size: 58683
    
[libx264 @ 0xb710c0] mb I  I16..4: 21.2% 59.8% 19.0%
    
[libx264 @ 0xb710c0] 8x8 transform intra:59.8%
    
[libx264 @ 0xb710c0] coded y,uvDC,uvAC intra: 50.5% 65.2% 31.6%
    
[libx264 @ 0xb710c0] i16 v,h,dc,p: 10% 60%  3% 28%
    
[libx264 @ 0xb710c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 27% 26%  4%  4%  4%  6%  4%  7%
    
[libx264 @ 0xb710c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 33% 10%  5%  6%  5%  8%  5%  7%
    
[libx264 @ 0xb710c0] i8c dc,h,v,p: 47% 34% 11%  8%
    
[libx264 @ 0xb710c0] kb/s:11736.60

    Any ideas whats causing the image sequence to fail ?

    EDIT

    After some more debugging I think it may be related to the fact that all the files dont have the same extension. How can I make it so that it doesn’t have to be that way or is that already a default setting and the issue is else where ?

    EDIT 2

    I can get it to work when all the image extensions are the same but when it gets to png or any other image extension it renders the movie but the movie stops (incomplete) when it gets to that frame. This happens when I -
    1. place all the jpgs before the png
    2. run the following command ----

    ffmpeg -safe 0 -f concat -i paths.txt -c:v libx264 \
    
-vf "scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:(ow-iw)/2:(oh-ih)/2" -pix_fmt yuv420p -movflags +faststart -y output.mp4 2>&1

    So my last guess may be correct and it’s because I am mixing multiple image extensions in my ffmpeg command.

    How can I correct it so that it allows a mix of any image files ?

  • ffmpeg image sequence from text file not rendering correctly

    4 juillet 2018, par Rich

    I’ve been working with ffmpeg and I have got it to work perfectly quite a few times, but as of recent I am running into an issue where all the images from my text file arent used.

    My text file looks like -

    ffconcat version 1.0
    
file 'gallery-house-77-west-55th-street-01.jpg'
    
duration 4.44
    
file 'img03.jpg'
    
duration 4.44
    
file 'inside.png'
    
duration 4.44
    
file 'placeholder.png'

    (amount of files, file names and extensions will always vary)

    And I’ve tried several combinations but as of now my ffmpeg function looks like —

    ffmpeg -i audio.mp3 -safe 0 -f concat -i paths.txt -c:a copy -c:v libx264 \
    
-vf "scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:(ow-iw)/2:(oh-ih)/2,fps=25,format=yuv420p" -vsync vfr -movflags +faststart -y output.mp4 2>&1');

    When trying to run it, the video seems to convert but has various weird behaviors - sometimes only the middle file(image) in the list is shown or the first 2 only are shown/rendered.

    The audio is playing correctly though.

    I’ve tried setting the framerate for the input and I also tried setting it for the output but it leads to more strange behavior.

    This is what is echoed when running my above ffmpeg command -

     libavutil      56. 15.100 / 56. 15.100
    
  libavcodec     58. 19.100 / 58. 19.100
    
  libavformat    58. 13.100 / 58. 13.100
    
  libavdevice    58.  4.100 / 58.  4.100
    
  libavfilter     7. 18.100 /  7. 18.100
    
  libswscale      5.  2.100 /  5.  2.100
    
  libswresample   3.  2.100 /  3.  2.100
    
  libpostproc    55.  2.100 / 55.  2.100
    
[mp3 @ 0xb46780] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from 'audio.mp3':
    
  Metadata:
    
    encoder         : Lavf57.71.100
    
  Duration: 00:00:19.98, start: 0.000000, bitrate: 48 kb/s
    
    Stream #0:0: Audio: mp3, 22050 Hz, mono, fltp, 48 kb/s
    
Input #1, concat, from 'paths.txt':
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #1:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 754x424 [SAR 72:72 DAR 377:212], 25 tbr, 25 tbn, 25 tbc
    
Stream mapping:
    
  Stream #1:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    
  Stream #0:0 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[swscaler @ 0xba25c0] deprecated pixel format used, make sure you did set range correctly
    
[libx264 @ 0xb710c0] using SAR=3393/3392
    
[libx264 @ 0xb710c0] using cpu capabilities: none!
    
[libx264 @ 0xb710c0] profile High, level 3.1
    
[libx264 @ 0xb710c0] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=22 lookahead_threads=3 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=25 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:
    
    encoder         : Lavf58.13.100
    
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 3393:3392 DAR 377:212], q=-1--1, 25 fps, 12800 tbn, 25 tbc
    
    Metadata:
    
      encoder         : Lavc58.19.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
    Stream #0:1: Audio: mp3 (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 48 kb/s
    
[swscaler @ 0xb93140] deprecated pixel format used, make sure you did set range correctly
    
[swscaler @ 0xb93140] Warning: data is not aligned! This can lead to a speed loss
    
[mjpeg @ 0xb6e200] mjpeg: unsupported coding type (cd)
    
[mjpeg @ 0xb6e200] mjpeg: unsupported coding type (c8)
    
[mjpeg @ 0xb6e200] Found EOI before any SOF, ignoring
    
[mjpeg @ 0xb6e200] mjpeg: unsupported coding type (c7)
    
Error while decoding stream #1:0: Invalid data found when processing input
    
[mjpeg @ 0xb6e200] invalid id 94
    
Error while decoding stream #1:0: Invalid data found when processing input
    
[mp4 @ 0xb6f8c0] Starting second pass: moving the moov atom to the beginning of the file
    
frame=    1 fps=0.0 q=28.0 Lsize=     179kB time=00:00:19.95 bitrate=  73.6kbits/s speed=44.1x    
    
video:58kB audio:117kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.446521%
    
[libx264 @ 0xb710c0] frame I:1     Avg QP:28.86  size: 58683
    
[libx264 @ 0xb710c0] mb I  I16..4: 21.2% 59.8% 19.0%
    
[libx264 @ 0xb710c0] 8x8 transform intra:59.8%
    
[libx264 @ 0xb710c0] coded y,uvDC,uvAC intra: 50.5% 65.2% 31.6%
    
[libx264 @ 0xb710c0] i16 v,h,dc,p: 10% 60%  3% 28%
    
[libx264 @ 0xb710c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 27% 26%  4%  4%  4%  6%  4%  7%
    
[libx264 @ 0xb710c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 33% 10%  5%  6%  5%  8%  5%  7%
    
[libx264 @ 0xb710c0] i8c dc,h,v,p: 47% 34% 11%  8%
    
[libx264 @ 0xb710c0] kb/s:11736.60

    Any ideas whats causing the image sequence to fail ?

    EDIT

    After some more debugging I think it may be related to the fact that all the files dont have the same extension. How can I make it so that it doesn’t have to be that way or is that already a default setting and the issue is else where ?

  • ffmpeg - MXF with 4-channel audio : how to create proxies (high quality / small file size) and preserve the audio mapping

    8 juillet 2018, par WhatsYourFunction

    We’ve got MXF sources (h.264 video at UHD (3840x2160) with 4-channels of (4 - PCM S24 mono sources)
    We want Proxies — smallest file size at highest picture quality
    The compression applied to the video and audio essences can be anything,
    And the wrapper can be either MXF or QuickTime
    but we need to preserve the audio mapping (i.e. the Proxy must be 4-channel audio)

    How to do that with ffmpeg ?

    • EDIT Adding ffprobe :

    Metadata :

    uid : ***

    generation_uid : ***

    company_name : CANON

    product_name : EOS C300 Mark II

    product_version : 1.00

    product_uid : ***

    modification_date : 2018-06-28T08:29:24.000000Z

    material_package_umid : ***

    timecode : 02:50:31:17

    Duration : 00:06:35.40, start : 0.000000, bitrate : 395842 kb/s

    Stream #0:0 : Video : h264 (High 4:2:2 Intra), yuv422p10le(tv, progressive), 3840x2160, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 23.98 tbn, 47.95 tbc

    Metadata :

     file_package_umid: ***

    Stream #0:1 : Audio : pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s

    Metadata :

     file_package_umid: ***

    Stream #0:2 : Audio : pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s

    Metadata :

     file_package_umid: ***

    Stream #0:3 : Audio : pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s

    Metadata :

     file_package_umid: ***

    Stream #0:4 : Audio : pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s

    Metadata :

     file_package_umid: ***

Navigation