Recherche avancée

Médias (2)

Mot : - Tags -/map

Autres articles (37)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

  • 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 (7460)

  • FFmpeg - MP4 file converted from PNG files is not playable [closed]

    2 mai 2024, par StamShamen

    I am attempting to use FFmpeg and JavaScript to convert multiple PNG files to an MP4 video. However, sometimes the output video is not playable (1kb) and no error appears in the output.

    


    This is the command that I run :

    


    ffmpeg -y -r 25 -i "videos-reporter/123/screenshots/%04d.png" -c:v libx264 -preset medium -crf 20 -pix_fmt yuv420p -vf "scale=1200:trunc(ow/a/2)*2,setpts=3.0*PTS" -threads 4 "videos-reporter/123/video.mp4"


    


    Output of playable video :

    


    Input #0, image2, from '/workspace/1/s/videos-reporter/MC4wMDM0NzUwNjg5NTc2NzMwMjI=/a464584b4d03585bd68abc0326e20b9a/screenshots/%04d.png':
  Duration: 00:00:01.44, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: png, rgba(pc), 1920x1080, 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x53a1000] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
[libx264 @ 0x53a1000] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0x53a1000] 264 - core 157 r2935 545de2f - 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=4 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=10 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 'videos-reporter/MC4wMDM0NzUwNjg5NTc2NzMwMjI=/a464584b4d03585bd68abc0326e20b9a/video.mp4':
  Metadata:
    encoder         : Lavf58.24.100
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1200x674, q=-1--1, 10 fps, 10240 tbn, 10 tbc
    Metadata:
      encoder         : Lavc58.42.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame=   52 fps=0.0 q=25.0 size=       0kB time=00:00:00.10 bitrate=   3.8kbits/s dup=34 drop=0 speed=0.125x    
video:84kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.457641%
[libx264 @ 0x53a1000] frame I:4     Avg QP: 5.16  size: 14568
[libx264 @ 0x53a1000] frame P:27    Avg QP:15.86  size:   790
[libx264 @ 0x53a1000] frame B:76    Avg QP:12.71  size:    73
[libx264 @ 0x53a1000] consecutive B-frames:  3.7%  1.9%  8.4% 86.0%
[libx264 @ 0x53a1000] mb I  I16..4: 87.8%  4.1%  8.1%
[libx264 @ 0x53a1000] mb P  I16..4:  3.1%  2.0%  0.4%  P16..4:  0.4%  0.1%  0.0%  0.0%  0.0%    skip:93.9%
[libx264 @ 0x53a1000] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  1.3%  0.1%  0.0%  direct: 0.0%  skip:98.6%  L0:42.1% L1:57.7% BI: 0.2%
[libx264 @ 0x53a1000] 8x8 transform intra:12.8% inter:47.1%
[libx264 @ 0x53a1000] coded y,uvDC,uvAC intra: 5.9% 5.8% 5.1% inter: 0.0% 0.0% 0.0%
[libx264 @ 0x53a1000] i16 v,h,dc,p: 81% 18%  1%  0%
[libx264 @ 0x53a1000] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 16% 60%  0%  0%  0%  0%  0%  1%
[libx264 @ 0x53a1000] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 48% 16%  1%  2%  2%  3%  2%  4%
[libx264 @ 0x53a1000] i8c dc,h,v,p: 90%  7%  2%  0%
[libx264 @ 0x53a1000] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x53a1000] ref P L0: 72.8%  2.5% 14.1% 10.6%
[libx264 @ 0x53a1000] ref B L0: 88.2% 11.0%  0.9%
[libx264 @ 0x53a1000] ref B L1: 99.3%  0.7%
[libx264 @ 0x53a1000] kb/s:63.64


    


    Output of not-playable video :

    


    Input #0, image2, from '/workspace/1/s/videos-reporter/MC4zOTQ2Nzk4NzMwMjU0MTU5Ng==/20ae4ef3d1e642b26d348adc4246965d/screenshots/%04d.png':
  Duration: 00:00:01.60, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: png, rgba(pc), 1920x1080, 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x5490c00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
[libx264 @ 0x5490c00] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0x5490c00] 264 - core 157 r2935 545de2f - 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=4 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=10 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 'videos-reporter/MC4zOTQ2Nzk4NzMwMjU0MTU5Ng==/20ae4ef3d1e642b26d348adc4246965d/video.mp4':
  Metadata:
    encoder         : Lavf58.24.100
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1200x674, q=-1--1, 10 fps, 10240 tbn, 10 tbc
    Metadata:
      encoder         : Lavc58.42.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1

stderr: frame=   19 fps=5.8 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A dup=12 drop=0 speed=   0x    
stderr: frame=   64 fps= 17 q=25.0 size=       0kB time=00:00:01.30 bitrate=   0.3kbits/s dup=42 drop=0 speed=0.343x    
stderr: frame=  119 fps= 25 q=-1.0 Lsize=     153kB time=00:00:11.60 bitrate= 108.2kbits/s dup=79 drop=0 speed=2.46x    
video:151kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.431093%

stderr: [libx264 @ 0x5490c00] frame I:5     Avg QP: 6.42  size: 14533
[libx264 @ 0x5490c00] frame P:32    Avg QP:16.29  size:  2284
[libx264 @ 0x5490c00] frame B:82    Avg QP:14.77  size:   100
[libx264 @ 0x5490c00] consecutive B-frames:  5.9%  1.7% 15.1% 77.3%
[libx264 @ 0x5490c00] mb I  I16..4: 77.0% 14.4%  8.6%

stderr: [libx264 @ 0x5490c00] mb P  I16..4:  9.2%  3.4%  1.3%  P16..4:  2.5%  0.2%  0.1%  0.0%  0.0%    skip:83.3%
[libx264 @ 0x5490c00] mb B  I16..4:  0.1%  0.0%  0.0%  B16..8:  1.8%  0.1%  0.0%  direct: 0.0%  skip:97.9%  L0:42.9% L1:56.4% BI: 0.7%
[libx264 @ 0x5490c00] 8x8 transform intra:19.2% inter:66.1%
[libx264 @ 0x5490c00] coded y,uvDC,uvAC intra: 6.1% 7.5% 5.4% inter: 0.3% 0.4% 0.0%
[libx264 @ 0x5490c00] i16 v,h,dc,p: 61% 38%  1%  0%
[libx264 @ 0x5490c00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 47% 15% 37%  0%  0%  0%  0%  0%  0%
[libx264 @ 0x5490c00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 46% 14%  1%  2%  2%  3%  2%  3%
[libx264 @ 0x5490c00] i8c dc,h,v,p: 85% 13%  3%  0%
[libx264 @ 0x5490c00] Weighted P-Frames: Y:6.2% UV:6.2%
[libx264 @ 0x5490c00] ref P L0: 75.1%  5.0% 16.0%  3.9%  0.0%
[libx264 @ 0x5490c00] ref B L0: 77.6% 19.7%  2.7%
[libx264 @ 0x5490c00] ref B L1: 97.9%  2.1%
[libx264 @ 0x5490c00] kb/s:103.49


    


    Your help is appreciated since I couldn't find any solution for it.

    


  • Why does FFMPEG work with 1080p but doesn't work with 720p size… (code included)

    2 avril 2017, par JavaRunner

    I’ve uploaded my fully compiled code with its Makefile here :

    https://pastebin.com/xtCTj06F

    If I set 1280x720 I get the segmentation fault :

    [libx264 @ 0x7fdf4d25a600] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    
[libx264 @ 0x7fdf4d25a600] profile High, level 3.1
    
[libx264 @ 0x7fdf4d25a600] 264 - core 148 r2748 97eaef2 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - 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=12 keyint_min=1 scenecut=40 intra_refresh=0 rc_lookahead=12 rc=abr mbtree=1 bitrate=3400 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
Output #0, mp4, to '1.mp4':
    
    Stream #0:0: Video: h264, yuv420p, 1280x720, q=2-31, 3400 kb/s, 20 tbn
    
    Stream #0:1: Audio: aac (LC), 44100 Hz, stereo, fltp, 64 kb/s
    
sws_scale BEGIN
    
./MakeVideo.sh: line 2: 26422 Segmentation fault: 11  ./MakeVideo 1.mp4

    There’s some problem with this line :

    std::cout << "sws_scale BEGIN\n";
    
sws_scale( sws_context, ( const uint8_t * const * ) &rgb, inLinesize, 0, frame->height, frame->data, frame->linesize );
    
std::cout << "sws_scale END\n";

    but if I set the size of a video to 1920x1080 or to 320x240 - all works fine.

    Is that some sort of a magick ?? Or a bug ?

    OS X 10.12.3
    ffmpeg/3.2.4 —enable-shared —enable-pthreads —enable-gpl —enable-version3 —enable-hardcoded-tables —enable-avresample —cc=clang —host-cflags= —host-ldflags= —enable-libmp3lame —enable-libx264 —enable-libxvid —enable-opencl —disable-lzma —enable-vda

  • FFmpeg - Merge two images (.png) to video (.mp4) doesn't work

    12 juin 2019, par Jokoe

    I want to merge two images (names are not numbered in a sequence) to a video, but the result includes only a video of the first image.

    I would appreciate any kind of help !

    ffmpeg.exe -r 1/5 -i image_x.png -r 1/5 -i image_y.png -codec:v libx264 -vf fps=50 video.mp4

    Output :

    Input #0, png_pipe, from
    ’C :\Users\khj\Desktop\SpeakerLayoutTool\Images_video\iamge_x.png’ :
    Duration : N/A, bitrate : N/A
    Stream #0:0 : Video : png, rgba(pc), 3840x2160, 25 tbr, 25 tbn, 25 tbc Input #1, png_pipe, from
    ’C :\Users\khj\Desktop\SpeakerLayoutTool\Images_video\image_y.png’ :
    Duration : N/A, bitrate : N/A
    Stream #1:0 : Video : png, rgba(pc), 3840x2160, 25 tbr, 25 tbn, 25 tbc File ’C :\Users\khj\Desktop\SpeakerLayoutTool\video.mp4’ already
    exists. Overwrite ? [y/N] y Stream mapping : Stream #0:0 -> #0:0 (png
    (native) -> h264 (libx264)) Press [q] to stop, [?] for help [libx264 @
    0000016c2a46e000] using cpu capabilities : MMX2 SSE2Fast SSSE3 SSE4.2
    AVX FMA3 BMI2 AVX2 [libx264 @ 0000016c2a46e000] profile High 4:4:4
    Predictive, level 5.2, 4:4:4, 8-bit [libx264 @ 0000016c2a46e000] 264 -
    core 157 r2970 5493be8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 -
    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=4 threads=12
    lookahead_threads=2 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
    ’C :\Users\khj\Desktop\SpeakerLayoutTool\video.mp4’ : Metadata :
    encoder : Lavf58.27.103
    Stream #0:0 : Video : h264 (libx264) (avc1 / 0x31637661), yuv444p, 3840x2160, q=-1—1, 50 fps, 12800 tbn, 50 tbc
    Metadata :
    encoder : Lavc58.52.100 libx264
    Side data :
    cpb : bitrate max/min/avg : 0/0/0 buffer size : 0 vbv_delay : -1 frame= 250 fps= 22 q=-1.0 Lsize= 162kB time=00:00:04.94 bitrate=
    268.1kbits/s speed=0.444x

Navigation