Recherche avancée

Médias (17)

Mot : - Tags -/wired

Autres articles (41)

  • 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

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

Sur d’autres sites (5262)

  • FFmpeg avcodec_find_encoder problem

    13 novembre 2012, par net

    I'm newbie in ffmpeg.

    my problem is "avcodec_find_encoder(CODEC_ID_H264) ;" func always returning null.

    ffmpeg configure is below on my ubuntu system.

    ./ffmpeg
    
FFmpeg version SVN-r26306, Copyright (c) 2000-2011 the FFmpeg developers
    
  built on Jan 11 2011 10:34:49 with gcc 4.4.5
    
  configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab
    
  libavutil     50.36. 0 / 50.36. 0
    
  libavcore      0.16. 0 /  0.16. 0
    
  libavcodec    52.108. 0 / 52.108. 0
    
  libavformat   52.92. 0 / 52.92. 0
    
  libavdevice   52. 2. 3 / 52. 2. 3
    
  libavfilter    1.72. 0 /  1.72. 0
    
  libswscale     0.12. 0 /  0.12. 0
    
  libpostproc   51. 2. 0 / 51. 2. 0

    as you can see, configuration contains —enable-libx264

    so I think avcodec_find_encoder(CODEC_ID_H264) ; have to return something not null...
    please let me know how to solve this problem ?

    ps) I call avcodec_init() and av_register_all() in my program.

    when I compile my test program, using below

    gcc -o test test.c -lavutil -lavformat -lavcodec -lx264 -lz -lm

    thanks

  • FFmpeg not encoding with libx264 library

    29 octobre 2011, par bOkeifus

    Hey people of StackOverflow. I have been having a strange issue that I'm not exactly sure what's going on. I am using FFmpeg to convert any incoming video files to h264 mp4 files using the libx264. This is the log that I get from running this line of code :

    ffmpeg -y -i vdoname.flv -acodec libfaac -vcodec libx264 -sameq vid.mp4

    This is the log output after running the line :

    FFmpeg version SVN-r13428, Copyright (c) 2000-2008 Fabrice Bellard, et al.
    
  configuration: --prefix=/usr --disable-static --enable-shared --enable-gpl --enable-nonfree --enable-pthreads --enable-liba52 --enable-liba52bin --enable-libamr-nb --enable-libamr-wb --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --disable-network --disable-ipv6 --disable-ffserver --disable-ffplay
    
  libavutil version: 49.6.0
    
  libavcodec version: 51.57.0
    
  libavformat version: 52.14.0
    
  libavdevice version: 52.0.0
    
  built on Feb 17 2009 09:01:13, gcc: 4.1.2 20071124 (Red Hat 4.1.2-42)
    

    
Seems stream 0 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 49.92 (599/12)
    
Input #0, flv, from '/html/video/937.flv':
    
  Duration: 00:00:10.08, start: 0.000000, bitrate: 48 kb/s
    
    Stream #0.0: Video: flv, yuv420p, 720x480, 49.92 tb(r)
    
    Stream #0.1: Audio: mp3, 22050 Hz, stereo, 48 kb/s
    
Output #0, h264, to '/html/flvideo/new_937.mp4':
    
    Stream #0.0: Video: libx264, yuv420p, 720x480, q=2-31, 200 kb/s, 49.92 tb(c)
    
    Stream #0.1: Audio: libfaac, 22050 Hz, stereo, 64 kb/s
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
  Stream #0.1 -> #0.1
    
[libx264 @ 0x11d58b0]using cpu capabilities: MMX MMXEXT SSE SSE2 3DNow!
    
Press [q] to stop encoding

    Can someone please help me out and tell me what to do to get this to work ? I guessed that the libx264 external library is not installed but it doesn't exactly say that in the log file and it looks as if it does find it but then doesn't actually encode the video.

    Any and all help is greatly appreciated.

  • ffmpeg rotate and resize

    23 août 2014, par user1321964

    I’m trying to resize a movie and to rotate it counter-clockwise using ffmpeg.
    I can achieve one or the other ok individually

    ffmpeg -i MVI_8189.MOV -vf "transpose=2" -ss 00:00:12 -t 00:00:05 rotate.MOV

    OR

    ffmpeg -i MVI_8189.MOV -s 720x406 -ss 00:00:12 -t 00:00:05 resize.MOV

    but if I try to do both, either-

    ffmpeg -i MVI_8189.MOV -s 720x406 -ss 00:00:12 -t 00:00:05 resize.MOV

    ffmpeg -i resize.MOV -vf "transpose=2" toutp.MOV

    OR

    ffmpeg -i MVI_8189.MOV -vf "transpose=2" -ss 00:00:12 -t 00:00:05 rotate.MOV

    ffmpeg -i rotate.MOV -s 406x720 toutp.MOV

    the final movie does not play, only audio, no video ; neither previewing in Finder, nor in Quicktime. More seriously once I have attempted to play it, I can’t then play any other movie whatsoever (only audio) - quicktime won’t quit, constantly need to force-quit it. The only way to then restore seems to be reboot OS-X

    This though does work -

    ffmpeg -i MVI_8189.MOV -vf "transpose=2" -ss 00:00:12 -t 00:00:05 rotate.MOV

    ffmpeg -i rotate.MOV -s 720x406 toutp.MOV

    but doesn’t do what I want - it stretches the movie in the wrong direction

    Any ideas ?

    ffmpeg version 1.0.git Copyright (c) 2000-2012 the FFmpeg developers
    built on Dec 24 2012 18:43:25 with llvm-gcc 4.2.1 (LLVM build 2336.1.00)

    MAC OSX 10.7.5

    ==========
    output from

    ffmpeg -i MVI_8189.MOV -vf "transpose=2" -ss 00:00:12 -t 00:00:05 rotate.MOV
    
ffmpeg -i rotate.MOV -s 406x720  toutp.MOV
    

    

    

    
ffmpeg version 1.0.git Copyright (c) 2000-2012 the FFmpeg developers
    
  built on Dec 24 2012 18:43:25 with llvm-gcc 4.2.1 (LLVM build 2336.1.00)
    
  configuration: --prefix=/usr/local --enable-shared --disable-mmx --enable-libmp3lame --enable-gpl --enable-zlib --enable-libvorbis --enable-libfaac --enable-nonfree --enable-libx264 --enable-pthreads
    
  libavutil      52. 12.100 / 52. 12.100
    
  libavcodec     54. 81.100 / 54. 81.100
    
  libavformat    54. 49.102 / 54. 49.102
    
  libavdevice    54.  3.102 / 54.  3.102
    
  libavfilter     3. 29.101 /  3. 29.101
    
  libswscale      2.  1.103 /  2.  1.103
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  2.100 / 52.  2.100
    
Guessed Channel Layout for  Input Stream #0.1 : stereo
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'MVI_8189.MOV':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 537331968
    
    compatible_brands: qt  CAEP
    
    creation_time   : 2014-08-17 23:13:43
    
  Duration: 00:01:32.40, start: 0.000000, bitrate: 44677 kb/s
    
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuvj420p, 1920x1080, 43132 kb/s, 25 fps, 25 tbr, 25k tbn, 50k tbc
    
    Metadata:
    
      creation_time   : 2014-08-17 23:13:43
    
    Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s
    
    Metadata:
    
      creation_time   : 2014-08-17 23:13:43
    
[libx264 @ 0x7fc67c043600] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
    
[libx264 @ 0x7fc67c043600] profile High, level 4.0
    
[libx264 @ 0x7fc67c043600] 264 - core 128 - 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=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, mov, to 'rotate.MOV':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 537331968
    
    compatible_brands: qt  CAEP
    
    encoder         : Lavf54.49.102
    
    Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuvj420p, 1080x1920, q=-1--1, 12800 tbn, 25 tbc
    
    Metadata:
    
      creation_time   : 2014-08-17 23:13:43
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, s16, 128 kb/s
    
    Metadata:
    
      creation_time   : 2014-08-17 23:13:43
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> libx264)
    
  Stream #0:1 -> #0:1 (pcm_s16le -> libfaac)
    
Press [q] to stop, [?] for help
    
frame=  125 fps=5.7 q=-2.0 Lsize=    6394kB time=00:00:05.00 bitrate=10470.5kbits/s    /s    
    
video:6322kB audio:67kB subtitle:0 global headers:0kB muxing overhead 0.079207%
    
[libx264 @ 0x7fc67c043600] frame I:1     Avg QP:25.87  size:113032
    
[libx264 @ 0x7fc67c043600] frame P:65    Avg QP:25.78  size: 64251
    
[libx264 @ 0x7fc67c043600] frame B:59    Avg QP:26.73  size: 37017
    
[libx264 @ 0x7fc67c043600] consecutive B-frames:  5.6% 94.4%  0.0%  0.0%
    
[libx264 @ 0x7fc67c043600] mb I  I16..4: 10.7% 79.9%  9.3%
    
[libx264 @ 0x7fc67c043600] mb P  I16..4:  3.6% 12.0%  0.3%  P16..4: 52.0% 19.1% 11.3%  0.0%  0.0%    skip: 1.7%
    
[libx264 @ 0x7fc67c043600] mb B  I16..4:  0.9%  1.7%  0.0%  B16..8: 45.4%  5.1%  0.8%  direct:24.2%  skip:21.9%  L0:50.1% L1:44.5% BI: 5.3%
    
[libx264 @ 0x7fc67c043600] 8x8 transform intra:74.5% inter:79.5%
    
[libx264 @ 0x7fc67c043600] coded y,uvDC,uvAC intra: 59.4% 94.3% 79.5% inter: 38.2% 80.5% 30.1%
    
[libx264 @ 0x7fc67c043600] i16 v,h,dc,p: 30% 21% 22% 28%
    
[libx264 @ 0x7fc67c043600] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 14% 24%  6%  8%  9%  7%  8%  7%
    
[libx264 @ 0x7fc67c043600] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 18% 17%  6%  7%  8%  6%  6%  4%
    
[libx264 @ 0x7fc67c043600] i8c dc,h,v,p: 60% 14% 18%  8%
    
[libx264 @ 0x7fc67c043600] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x7fc67c043600] ref P L0: 43.9% 12.6% 26.8% 16.7%
    
[libx264 @ 0x7fc67c043600] ref B L0: 68.6% 31.4%
    
[libx264 @ 0x7fc67c043600] kb/s:10357.28
    
ffmpeg version 1.0.git Copyright (c) 2000-2012 the FFmpeg developers
    
  built on Dec 24 2012 18:43:25 with llvm-gcc 4.2.1 (LLVM build 2336.1.00)
    
  configuration: --prefix=/usr/local --enable-shared --disable-mmx --enable-libmp3lame --enable-gpl --enable-zlib --enable-libvorbis --enable-libfaac --enable-nonfree --enable-libx264 --enable-pthreads
    
  libavutil      52. 12.100 / 52. 12.100
    
  libavcodec     54. 81.100 / 54. 81.100
    
  libavformat    54. 49.102 / 54. 49.102
    
  libavdevice    54.  3.102 / 54.  3.102
    
  libavfilter     3. 29.101 /  3. 29.101
    
  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 'rotate.MOV':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 512
    
    compatible_brands: qt  
    
    encoder         : Lavf54.49.102
    
  Duration: 00:00:05.01, start: 0.010667, bitrate: 10446 kb/s
    
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p, 1080x1920, 10358 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
    
    Metadata:
    
      handler_name    : DataHandler
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 109 kb/s
    
    Metadata:
    
      handler_name    : DataHandler
    
[libx264 @ 0x7fcf1c05ba00] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
    
[libx264 @ 0x7fcf1c05ba00] profile High, level 3.0
    
[libx264 @ 0x7fcf1c05ba00] 264 - core 128 - 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=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, mov, to 'toutp.MOV':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 512
    
    compatible_brands: qt  
    
    encoder         : Lavf54.49.102
    
    Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuvj420p, 406x720, q=-1--1, 12800 tbn, 25 tbc
    
    Metadata:
    
      handler_name    : DataHandler
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, s16, 128 kb/s
    
    Metadata:
    
      handler_name    : DataHandler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> libx264)
    
  Stream #0:1 -> #0:1 (aac -> libfaac)
    
Press [q] to stop, [?] for help
    
frame=  125 fps= 32 q=-2.0 Lsize=     469kB time=00:00:05.01 bitrate= 766.2kbits/s    
    
video:396kB audio:68kB subtitle:0 global headers:0kB muxing overhead 1.088481%
    
[libx264 @ 0x7fcf1c05ba00] frame I:1     Avg QP:24.20  size: 31395
    
[libx264 @ 0x7fcf1c05ba00] frame P:42    Avg QP:24.51  size:  7137
    
[libx264 @ 0x7fcf1c05ba00] frame B:82    Avg QP:27.71  size:   893
    
[libx264 @ 0x7fcf1c05ba00] consecutive B-frames:  0.8% 16.0% 57.6% 25.6%
    
[libx264 @ 0x7fcf1c05ba00] mb I  I16..4:  7.0% 62.2% 30.8%
    
[libx264 @ 0x7fcf1c05ba00] mb P  I16..4:  0.2%  0.8%  0.1%  P16..4: 52.8% 18.7% 12.5%  0.0%  0.0%    skip:14.9%
    
[libx264 @ 0x7fcf1c05ba00] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8: 30.0%  0.8%  0.1%  direct: 0.9%  skip:68.2%  L0:36.0% L1:62.1% BI: 2.0%
    
[libx264 @ 0x7fcf1c05ba00] 8x8 transform intra:66.4% inter:78.3%
    
[libx264 @ 0x7fcf1c05ba00] coded y,uvDC,uvAC intra: 79.3% 93.6% 84.9% inter: 13.6% 32.2% 10.4%
    
[libx264 @ 0x7fcf1c05ba00] i16 v,h,dc,p: 50% 19%  7% 24%
    
[libx264 @ 0x7fcf1c05ba00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 20% 11%  5%  8% 10%  9%  7%  8%
    
[libx264 @ 0x7fcf1c05ba00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 22%  8%  5%  8%  8% 10%  5%  5%
    
[libx264 @ 0x7fcf1c05ba00] i8c dc,h,v,p: 42% 22% 24% 13%
    
[libx264 @ 0x7fcf1c05ba00] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x7fcf1c05ba00] ref P L0: 48.7% 16.3% 25.6%  9.4%
    
[libx264 @ 0x7fcf1c05ba00] ref B L0: 73.7% 21.3%  5.0%
    
[libx264 @ 0x7fcf1c05ba00] ref B L1: 90.7%  9.3%
    
[libx264 @ 0x7fcf1c05ba00] kb/s:647.04

Navigation