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  • 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.

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (6089)

  • Use FFmpeg concat two video, is output video level mistake ?

    27 février, par 哇哈哈
    video1
{
    "index": 0,
    "codec_name": "hevc",
    "codec_long_name": "H.265 / HEVC (High Efficiency Video Coding)",
    "profile": "Main",
    "codec_type": "video",
    "codec_tag_string": "hev1",
    "codec_tag": "0x31766568",
    "width": 1920,
    "height": 1080,
    "coded_width": 1920,
    "coded_height": 1080,
    "has_b_frames": 2,
    "sample_aspect_ratio": "1:1",
    "display_aspect_ratio": "16:9",
    "pix_fmt": "yuv420p",
    "level": 120,
    "color_range": "tv",
    "chroma_location": "left",
    "field_order": "progressive",
    "refs": 1,
    "view_ids_available": "",
    "view_pos_available": "",
    "id": "0x1",
    "r_frame_rate": "30/1",
    "avg_frame_rate": "30/1",
    "time_base": "1/15360",
    "start_pts": 0,
    "start_time": "0.000000",
    "duration_ts": 200192,
    "duration": "13.033333",
    "bit_rate": "10794613",
    "nb_frames": "391",
    "extradata_size": 2496,
    "disposition": {
        "default": 1,
        "dub": 0,
        "original": 0,
        "comment": 0,
        "lyrics": 0,
        "karaoke": 0,
        "forced": 0,
        "hearing_impaired": 0,
        "visual_impaired": 0,
        "clean_effects": 0,
        "attached_pic": 0,
        "timed_thumbnails": 0,
        "non_diegetic": 0,
        "captions": 0,
        "descriptions": 0,
        "metadata": 0,
        "dependent": 0,
        "still_image": 0,
        "multilayer": 0
    },
    "tags": {
        "language": "eng",
        "handler_name": "VideoHandler",
        "vendor_id": "[0][0][0][0]",
        "encoder": "Lavc61.33.100 libx265",
        "timecode": "00:00:00;00"
    }
}

video2 
{
    "index": 0,
    "codec_name": "hevc",
    "codec_long_name": "H.265 / HEVC (High Efficiency Video Coding)",
    "profile": "Main",
    "codec_type": "video",
    "codec_tag_string": "hev1",
    "codec_tag": "0x31766568",
    "width": 1920,
    "height": 1080,
    "coded_width": 1920,
    "coded_height": 1080,
    "has_b_frames": 2,
    "sample_aspect_ratio": "1:1",
    "display_aspect_ratio": "16:9",
    "pix_fmt": "yuv420p",
    "level": 120,
    "color_range": "tv",
    "chroma_location": "left",
    "field_order": "progressive",
    "refs": 1,
    "view_ids_available": "",
    "view_pos_available": "",
    "id": "0x1",
    "r_frame_rate": "25/1",
    "avg_frame_rate": "25/1",
    "time_base": "1/12800",
    "start_pts": 0,
    "start_time": "0.000000",
    "duration_ts": 1309696,
    "duration": "102.320000",
    "bit_rate": "1024122",
    "nb_frames": "2558",
    "extradata_size": 2496,
    "disposition": {
        "default": 1,
        "dub": 0,
        "original": 0,
        "comment": 0,
        "lyrics": 0,
        "karaoke": 0,
        "forced": 0,
        "hearing_impaired": 0,
        "visual_impaired": 0,
        "clean_effects": 0,
        "attached_pic": 0,
        "timed_thumbnails": 0,
        "non_diegetic": 0,
        "captions": 0,
        "descriptions": 0,
        "metadata": 0,
        "dependent": 0,
        "still_image": 0,
        "multilayer": 0
    },
    "tags": {
        "language": "und",
        "handler_name": "VideoHandler",
        "vendor_id": "[0][0][0][0]",
        "encoder": "Lavc61.33.100 libx265"
    }
}

out:
{
    "index": 0,
    "codec_name": "hevc",
    "codec_long_name": "H.265 / HEVC (High Efficiency Video Coding)",
    "profile": "Main",
    "codec_type": "video",
    "codec_tag_string": "hev1",
    "codec_tag": "0x31766568",
    "width": 1920,
    "height": 1080,
    "coded_width": 1920,
    "coded_height": 1080,
    "has_b_frames": 2,
    "sample_aspect_ratio": "1:1",
    "display_aspect_ratio": "16:9",
    "pix_fmt": "yuv420p",
    "level": 186,
    "color_range": "tv",
    "chroma_location": "left",
    "field_order": "progressive",
    "refs": 1,
    "view_ids_available": "",
    "view_pos_available": "",
    "id": "0x1",
    "r_frame_rate": "30/1",
    "avg_frame_rate": "147450/5767",
    "time_base": "1/1000000",
    "start_pts": 0,
    "start_time": "0.000000",
    "duration_ts": 115340000,
    "duration": "115.340000",
    "bit_rate": "1060604",
    "nb_frames": "2949",
    "extradata_size": 2500,
    "disposition": {
        "default": 1,
        "dub": 0,
        "original": 0,
        "comment": 0,
        "lyrics": 0,
        "karaoke": 0,
        "forced": 0,
        "hearing_impaired": 0,
        "visual_impaired": 0,
        "clean_effects": 0,
        "attached_pic": 0,
        "timed_thumbnails": 0,
        "non_diegetic": 0,
        "captions": 0,
        "descriptions": 0,
        "metadata": 0,
        "dependent": 0,
        "still_image": 0,
        "multilayer": 0
    },
    "tags": {
        "language": "und",
        "handler_name": "VideoHandler",
        "vendor_id": "[0][0][0][0]",
        "encoder": "Lavc61.33.100 libx265"
    }
}


    


    output video level is 6.2 ? i wiki level refer to fps resolusion or bitrate,but not suit this output video.
0。0 ! Could Someone HELP me ?

    


    ffmpeg -i .\HEVC_1080p_30P_yellowtree.mp4 -i .\HEVC_1080p_24fps_happy.mp4 -filter_complex "[0:v][1:v]concat=n=2:v=1:a=0[outv]" -map "[outv]" -c:v libx265 concat_output.mp4

    


    ffmpeg version N-118448-g43be8d0728-20250209 Copyright (c) 2000-2025 the FFmpeg developers
built with gcc 14.2.0 (crosstool-NG 1.26.0.120_4d36f27)
configuration : —prefix=/ffbuild/prefix —pkg-config-flags=—static —pkg-config=pkg-config —cross-prefix=x86_64-w64-mingw32- —arch=x86_64 —target-os=mingw32 —enable-gpl —enable-version3 —disable-debug —enable-shared —disable-static —disable-w32threads —enable-pthreads —enable-iconv —enable-zlib —enable-libfreetype —enable-libfribidi —enable-gmp —enable-libxml2 —enable-lzma —enable-fontconfig —enable-libharfbuzz —enable-libvorbis —enable-opencl —disable-libpulse —enable-libvmaf —disable-libxcb —disable-xlib —enable-amf —enable-libaom —enable-libaribb24 —enable-avisynth —enable-chromaprint —enable-libdav1d —enable-libdavs2 —enable-libdvdread —enable-libdvdnav —disable-libfdk-aac —enable-ffnvcodec —enable-cuda-llvm —enable-frei0r —enable-libgme —enable-libkvazaar —enable-libaribcaption —enable-libass —enable-libbluray —enable-libjxl —enable-libmp3lame —enable-libopus —enable-librist —enable-libssh —enable-libtheora —enable-libvpx —enable-libwebp —enable-libzmq —enable-lv2 —enable-libvpl —enable-openal —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenh264 —enable-libopenjpeg —enable-libopenmpt —enable-librav1e —enable-librubberband —enable-schannel —enable-sdl2 —enable-libsnappy —enable-libsoxr —enable-libsrt —enable-libsvtav1 —enable-libtwolame —enable-libuavs3d —disable-libdrm —enable-vaapi —enable-libvidstab —enable-vulkan —enable-libshaderc —enable-libplacebo —disable-libvvenc —enable-libx264 —enable-libx265 —enable-libxavs2 —enable-libxvid —enable-libzimg —enable-libzvbi —extra-cflags=-DLIBTWOLAME_STATIC —extra-cxxflags= —extra-libs=-lgomp —extra-ldflags=-pthread —extra-ldexeflags= —cc=x86_64-w64-mingw32-gcc —cxx=x86_64-w64-mingw32-g++ —ar=x86_64-w64-mingw32-gcc-ar —ranlib=x86_64-w64-mingw32-gcc-ranlib —nm=x86_64-w64-mingw32-gcc-nm —extra-version=20250209
libavutil 59. 56.100 / 59. 56.100
libavcodec 61. 33.100 / 61. 33.100
libavformat 61. 9.107 / 61. 9.107
libavdevice 61. 4.100 / 61. 4.100
libavfilter 10. 9.100 / 10. 9.100
libswscale 8. 13.100 / 8. 13.100
libswresample 5. 4.100 / 5. 4.100
libpostproc 58. 4.100 / 58. 4.100

    


  • Revision 36454 : uniformiser les inputs du formulaire de login

    19 mars 2010, par brunobergot@… — Log

    uniformiser les inputs du formulaire de login

  • ffmpeg conversion using libx264 looks terrible - interlaced

    17 juin 2016, par justin

    I’m in the process of converting some files from my set-top box (.ASF) format to something more portable that will work with plex and roku more readily. In doing so I’m using ffmpeg, but having unsatisfying results. Whereas the original doesn’t have ANY notable interlacing defects, the converted file does. I think it has something to do with the libx264 converter because of the following experiment :

    Running this command :

    ffmpeg -i file.asf -vcodec copy -acodec copy -bsf:a aac_adtstoasc -ss 150 -t 15 short.mp4

    ffmpeg version 3.0.2 Copyright (c) 2000-2016 the FFmpeg developers
    
  built with Apple LLVM version 7.3.0 (clang-703.0.29)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.0.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libxvid --enable-vda
    
  libavutil      55. 17.103 / 55. 17.103
    
  libavcodec     57. 24.102 / 57. 24.102
    
  libavformat    57. 25.100 / 57. 25.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 31.100 /  6. 31.100
    
  libavresample   3.  0.  0 /  3.  0.  0
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.101 /  2.  0.101
    
  libpostproc    54.  0.100 / 54.  0.100
    
[asf @ 0x7f9f84000000] Could not find codec parameters for stream 2 (Unknown: none): unknown codec
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
Input #0, asf, from 'file.asf':
    
  Metadata:
    
    title           : Slingbox
    
    artist          : Sling Media
    
    comment         : test
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: h264 (High) (h264 / 0x34363268), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 30.30 fps, 30 tbr, 1k tbn, 59.94 tbc
    
    Stream #0:1: Audio: aac (LC) ([255][0][0][0] / 0x00FF), 32000 Hz, stereo, fltp, 96 kb/s
    
    Stream #0:2: Unknown: none
    
File 'short.mp4' already exists. Overwrite ? [y/N] y
    
Output #0, mp4, to 'short.mp4':
    
  Metadata:
    
    title           : Slingbox
    
    artist          : Sling Media
    
    comment         : test
    
    encoder         : Lavf57.25.100
    
    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 30.30 fps, 30 tbr, 16k tbn, 1k tbc
    
    Stream #0:1: Audio: aac (LC) ([64][0][0][0] / 0x0040), 32000 Hz, stereo, 96 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[mp4 @ 0x7f9f8388c200] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
    
[mp4 @ 0x7f9f8388c200] pts has no value
    
    Last message repeated 449 times
    
frame=  450 fps=0.0 q=-1.0 Lsize=    9002kB time=00:00:15.02 bitrate=4907.9kbits/s speed=92.1x    
    
video:8817kB audio:173kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.125406%

    Which produces a file which has no interlacing artifact and appears to be same exact file size as the original (if run without the -ss and -t commands).

    But running this command (without any options) :

    ffmpeg -i test.asf -ss 150 -t 15 short2.mp4

    ffmpeg version 3.0.2 Copyright (c) 2000-2016 the FFmpeg developers
    
  built with Apple LLVM version 7.3.0 (clang-703.0.29)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.0.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libxvid --enable-vda
    
  libavutil      55. 17.103 / 55. 17.103
    
  libavcodec     57. 24.102 / 57. 24.102
    
  libavformat    57. 25.100 / 57. 25.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 31.100 /  6. 31.100
    
  libavresample   3.  0.  0 /  3.  0.  0
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.101 /  2.  0.101
    
  libpostproc    54.  0.100 / 54.  0.100
    
[asf @ 0x7fec32801400] Could not find codec parameters for stream 2 (Unknown: none): unknown codec
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
Input #0, asf, from 'test.asf':
    
  Metadata:
    
    title           : Slingbox
    
    artist          : Sling Media
    
    comment         : test
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: h264 (High) (h264 / 0x34363268), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 30.30 fps, 30 tbr, 1k tbn, 59.94 tbc
    
    Stream #0:1: Audio: aac (LC) ([255][0][0][0] / 0x00FF), 32000 Hz, stereo, fltp, 96 kb/s
    
    Stream #0:2: Unknown: none
    
[libx264 @ 0x7fec32102800] using SAR=1/1
    
[libx264 @ 0x7fec32102800] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    
[libx264 @ 0x7fec32102800] profile High, level 4.0
    
[libx264 @ 0x7fec32102800] 264 - core 148 r2668 fd2c324 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - - 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=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 'short2.mp4':
    
  Metadata:
    
    title           : Slingbox
    
    artist          : Sling Media
    
    comment         : test
    
    encoder         : Lavf57.25.100
    
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 30 fps, 15360 tbn, 30 tbc
    
    Metadata:
    
      encoder         : Lavc57.24.102 libx264
    
    Side data:
    
      unknown side data type 10 (24 bytes)
    
    Stream #0:1: Audio: aac (LC) ([64][0][0][0] / 0x0040), 32000 Hz, stereo, fltp, 128 kb/s
    
    Metadata:
    
      encoder         : Lavc57.24.102 aac
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    
Press [q] to stop, [?] for help
    
frame=  450 fps= 20 q=-1.0 Lsize=    6732kB time=00:00:15.00 bitrate=3674.9kbits/s speed=0.657x    
    
video:6481kB audio:240kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.168370%
    
[libx264 @ 0x7fec32102800] frame I:12    Avg QP:18.85  size: 39804
    
[libx264 @ 0x7fec32102800] frame P:291   Avg QP:21.40  size: 17543
    
[libx264 @ 0x7fec32102800] frame B:147   Avg QP:22.61  size:  7167
    
[libx264 @ 0x7fec32102800] consecutive B-frames: 42.9% 36.9% 11.3%  8.9%
    
[libx264 @ 0x7fec32102800] mb I  I16..4: 43.2% 52.0%  4.8%
    
[libx264 @ 0x7fec32102800] mb P  I16..4: 11.9% 16.0%  1.0%  P16..4: 30.2%  3.0%  1.7%  0.0%  0.0%    skip:36.2%
    
[libx264 @ 0x7fec32102800] mb B  I16..4:  0.6%  0.9%  0.1%  B16..8: 25.7%  1.4%  0.2%  direct: 4.6%  skip:66.6%  L0:49.0% L1:49.4% BI: 1.6%
    
[libx264 @ 0x7fec32102800] 8x8 transform intra:55.1% inter:92.0%
    
[libx264 @ 0x7fec32102800] coded y,uvDC,uvAC intra: 22.5% 38.6% 6.6% inter: 6.5% 17.3% 0.5%
    
[libx264 @ 0x7fec32102800] i16 v,h,dc,p: 28% 47%  8% 17%
    
[libx264 @ 0x7fec32102800] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 34% 15% 42%  1%  1%  2%  1%  2%  1%
    
[libx264 @ 0x7fec32102800] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 78%  6%  1%  1%  1%  1%  1%  1%
    
[libx264 @ 0x7fec32102800] i8c dc,h,v,p: 59% 19% 19%  3%
    
[libx264 @ 0x7fec32102800] Weighted P-Frames: Y:14.4% UV:3.8%
    
[libx264 @ 0x7fec32102800] ref P L0: 65.5%  6.6% 19.0%  8.4%  0.4%
    
[libx264 @ 0x7fec32102800] ref B L0: 89.6%  8.9%  1.5%
    
[libx264 @ 0x7fec32102800] ref B L1: 98.6%  1.4%
    
[libx264 @ 0x7fec32102800] kb/s:3539.34
    
[aac @ 0x7fec32103a00] Qavg: 573.580

    Produces a file which has quite a bit of interlacing defect when playing on my HD projector thru Roku via Plex (direct play enabled, apparently no transcoding).

    still frame from second transcode showing visual defect

    Lest I be overly picky, I engaged my wife in this test, showing her the two files and she agreed that the one that used libx264 was significantly worse and unwatchable. Can’t figure out how to shrink this file down without causing these interlacing defects — it happens even when I don’t try to shrink it ! Any thoughts ?

    Video files :

    https://dl.dropboxusercontent.com/u/23091/m1/short.mp4
    https://dl.dropboxusercontent.com/u/23091/m1/short2.mp4

    Update : Additionally, I tried a few settings to generate a MPEG4 (.AVI) file and had similar lack of success. Similar interlacing defects.

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