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  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

Sur d’autres sites (2780)

  • Add black video to video with sound

    4 février 2017, par garrettlynch

    I’m trying to insert 13 seconds of black video at the start of a video that has sound using ffmpeg like so :

    ffmpeg -f lavfi -i "color=c=black:s=720x406:r=25:sar=1/1" -i input.mp4 -filter_complex \
    
"[0:v] trim=end=13,setpts=PTS-STARTPTS [blackstart]; \
    
[blackstart] [1:v] concat=n=2:v=1:a=0[out]" \
    
 -map "[out]" -c:a copy output.mp4

    However the sound is not being maintained. What am I doing incorrectly ? -c:a copy does not seem to work should I be using a [1:a] somewhere ?

    garrett-retina:~ garrett-macbookretina$ ffmpeg -f lavfi -i "color=c=red:s=720x406:r=25:sar=1/1" -i input.mp4 -filter_complex \
    
> "[0:v] trim=end=13,setpts=PTS-STARTPTS [blackstart]; \
    
> [blackstart] [1:v] concat=n=2:v=1:a=0[out]" \
    
>  -map "[out]" -c:a copy output.mp4
    
ffmpeg version 3.2.2 Copyright (c) 2000-2016 the FFmpeg developers
    
  built with Apple LLVM version 5.0 (clang-500.2.76) (based on LLVM 3.3svn)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.2 --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
    
  libavutil      55. 34.100 / 55. 34.100
    
  libavcodec     57. 64.101 / 57. 64.101
    
  libavformat    57. 56.100 / 57. 56.100
    
  libavdevice    57.  1.100 / 57.  1.100
    
  libavfilter     6. 65.100 /  6. 65.100
    
  libavresample   3.  1.  0 /  3.  1.  0
    
  libswscale      4.  2.100 /  4.  2.100
    
  libswresample   2.  3.100 /  2.  3.100
    
  libpostproc    54.  1.100 / 54.  1.100
    
Input #0, lavfi, from 'color=c=red:s=720x406:r=25:sar=1/1':
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x406 [SAR 1:1 DAR 360:203], 25 tbr, 25 tbn, 25 tbc
    
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.56.100
    
  Duration: 33:59:47.32, start: 0.000000, bitrate: 179 kb/s
    
    Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 720x406 [SAR 1:1 DAR 360:203], 62 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 16000 Hz, stereo, fltp, 114 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
[libx264 @ 0x7fa344048400] using SAR=1/1
    
[libx264 @ 0x7fa344048400] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 0x7fa344048400] profile High, level 3.0
    
[libx264 @ 0x7fa344048400] 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=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 '/Users/garrett-macbookretina/Desktop/Best of Luck With the Wall/exports/test.mp4':
    
  Metadata:
    
    encoder         : Lavf57.56.100
    
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 720x406 [SAR 1:1 DAR 360:203], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
    
    Metadata:
    
      encoder         : Lavc57.64.101 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
Stream mapping:
    
  Stream #0:0 (rawvideo) -> trim
    
  Stream #1:0 (h264) -> concat:in1:v0
    
  concat -> Stream #0:0 (libx264)
    
Press [q] to stop, [?] for help
    
frame=3060008 fps=432 q=-1.0 Lsize=  957795kB time=34:00:00.20 bitrate=  64.1kbits/s speed=17.3x    
    
video:921972kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.885564%
    
[libx264 @ 0x7fa344048400] frame I:16585 Avg QP:13.67  size: 49743
    
[libx264 @ 0x7fa344048400] frame P:770518 Avg QP:16.48  size:    91
    
[libx264 @ 0x7fa344048400] frame B:2272905 Avg QP:25.11  size:    22
    
[libx264 @ 0x7fa344048400] consecutive B-frames:  0.9%  0.1%  0.4% 98.6%
    
[libx264 @ 0x7fa344048400] mb I  I16..4: 10.2% 39.7% 50.1%
    
[libx264 @ 0x7fa344048400] mb P  I16..4:  0.0%  0.0%  0.0%  P16..4:  0.7%  0.0%  0.0%  0.0%  0.0%    skip:99.1%
    
[libx264 @ 0x7fa344048400] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.2%  0.0%  0.0%  direct: 0.0%  skip:99.8%  L0:46.9% L1:53.1% BI: 0.1%
    
[libx264 @ 0x7fa344048400] 8x8 transform intra:39.9% inter:52.0%
    
[libx264 @ 0x7fa344048400] coded y,uvDC,uvAC intra: 86.1% 77.1% 60.4% inter: 0.0% 0.1% 0.0%
    
[libx264 @ 0x7fa344048400] i16 v,h,dc,p: 66% 10% 13% 11%
    
[libx264 @ 0x7fa344048400] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 20% 14%  6%  7%  7%  7%  7% 11%
    
[libx264 @ 0x7fa344048400] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 19% 11%  7%  9%  8%  8%  7%  9%
    
[libx264 @ 0x7fa344048400] i8c dc,h,v,p: 59% 19% 17%  5%
    
[libx264 @ 0x7fa344048400] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x7fa344048400] ref P L0: 53.9%  4.0% 16.6% 25.5%  0.0%
    
[libx264 @ 0x7fa344048400] ref B L0: 27.9% 71.6%  0.5%
    
[libx264 @ 0x7fa344048400] ref B L1: 97.6%  2.4%
    
[libx264 @ 0x7fa344048400] kb/s:61.71
    
garrett-retina:~ garrett-macbookretina$

  • FFmpeg audio dont work in converted videos

    28 octobre 2013, par Bar Cumberworth

    NOTICE : when i convert videos via terminal and download them from ftp into pc the audio works fine. I use :

    if($ext == "avi" && $convert_avi == true)
    
            {
    
                $convert_source = _VIDEOS_DIR_PATH.$new_name;
    
                $conv_name = substr(md5($file['name'].rand(1,888)), 2, 10).".mp4";
    
                $converted_file  = _VIDEOS_DIR_PATH.$conv_name;
    
                $ffmpeg_command = 'ffmpeg -i '.$convert_source.' -acodec libmp3lame -vcodec libx264 -s 1280x720 -ar 44100 -async 44100 -r 29.970 -ac 2 -qscale 5 '.$converted_file;
    
                echo exec($ffmpeg_command);
    
                $sql = "UPDATE pm_temp SET url = '".$conv_name."' WHERE url = '".$new_name."' LIMIT 1";
    
                $result = @mysql_query($sql);
    
                unlink($convert_source);    
    
            }

    This code to convert avi to mp4 ffmpeg concole output :

    root@1tb:~# ffmpeg -i sample.avi -acodec libmp3lame -vcodec libx264 -s 1280x720 -ar 44100 -async 44100 -r 29.970 -ac 2 -qscale 5 goodsample.mp4
    
ffmpeg version 0.7.15, Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Feb 22 2013 07:18:58 with gcc 4.4.5
    
  configuration: --enable-libdc1394 --prefix=/usr --extra-cflags='-Wall -g ' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-avfilter --enable-libdirac --disable-decoder=libdirac --enable-libfreetype --enable-libschroedinger --disable-encoder=libschroedinger -                                                                                                                                                             s
    
  libavutil    50. 43. 0 / 50. 43. 0
    
  libavcodec   52.123. 0 / 52.123. 0
    
  libavformat  52.111. 0 / 52.111. 0
    
  libavdevice  52.  5. 0 / 52.  5. 0
    
  libavfilter   1. 80. 0 /  1. 80. 0
    
  libswscale    0. 14. 1 /  0. 14. 1
    
  libpostproc  51.  2. 0 / 51.  2. 0
    
[mp3 @ 0x191d4100] Header missing
    
[mpeg4 @ 0x191d1dc0] Invalid and inefficient vfw-avi packed B frames detected
    
Input #0, avi, from 'sample.avi':
    
  Metadata:
    
    encoder         : VirtualDubMod 1.5.10.2 (build 2540/release)
    
  Duration: 00:01:01.81, start: 0.000000, bitrate: 1194 kb/s
    
    Stream #0.0: Video: mpeg4, yuv420p, 640x352 [PAR 1:1 DAR 20:11], 23.98 tbr,
    
    Stream #0.1: Audio: mp3, 48000 Hz, stereo, s16, 128 kb/s
    
[buffer @ 0x191d1c80] w:640 h:352 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:
    
[scale @ 0x191d6880] w:640 h:352 fmt:yuv420p -> w:1280 h:720 fmt:yuv420p flags:0
    
[libx264 @ 0x191ce5a0] Default settings detected, using medium profile
    
[libx264 @ 0x191ce5a0] using SAR=45/44
    
[libx264 @ 0x191ce5a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle S
    
[libx264 @ 0x191ce5a0] profile High, level 3.1
    
[libx264 @ 0x191ce5a0] 264 - core 118 - H.264/MPEG-4 AVC codec - Copyleft 2003-2                                                                                                                                                             6 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_off                                                                                                                                                             1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_l
    
Output #0, mp4, to 'goodsample.mp4':
    
  Metadata:
    
    encoder         : Lavf52.111.0
    
    Stream #0.0: Video: libx264, yuv420p, 1280x720 [PAR 45:44 DAR 20:11], q=2-31
    
    Stream #0.1: Audio: libmp3lame, 44100 Hz, stereo, s16, 64 kb/s
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
  Stream #0.1 -> #0.1
    
Press [q] to stop, [?] for help
    
[mp3 @ 0x191d4100] Header missing
    
Error while decoding stream #0.1
    
[mpeg4 @ 0x191d1dc0] Invalid and inefficient vfw-avi packed B frames detected
    
[mp3 @ 0x191d4100] incomplete frame 9467kB time=00:01:00.32 bitrate=1285.5kbits/
    
Error while decoding stream #0.1
    
frame= 1852 fps= 20 q=29.0 Lsize=    9652kB time=00:01:01.72 bitrate=1280.9kbits
    
video:9121kB audio:483kB global headers:0kB muxing overhead 0.499688%
    
frame I:11    Avg QP:16.78  size: 51456
    
[libx264 @ 0x191ce5a0] frame P:784   Avg QP:20.81  size:  8954
    
[libx264 @ 0x191ce5a0] frame B:1057  Avg QP:26.06  size:  1659
    
[libx264 @ 0x191ce5a0] consecutive B-frames: 22.0%  3.1%  7.5% 67.4%
    
[libx264 @ 0x191ce5a0] mb I  I16..4: 31.1% 59.8%  9.1%
    
[libx264 @ 0x191ce5a0] mb P  I16..4:  1.8%  2.6%  0.2%  P16..4: 24.3%  7.0%  4.0
    
[libx264 @ 0x191ce5a0] mb B  I16..4:  0.1%  0.1%  0.0%  B16..8: 22.7%  0.8%  0.2
    
[libx264 @ 0x191ce5a0] 8x8 transform intra:57.0% inter:72.6%
    
[libx264 @ 0x191ce5a0] coded y,uvDC,uvAC intra: 44.4% 33.3% 10.3% inter: 7.6% 5.
    
[libx264 @ 0x191ce5a0] i16 v,h,dc,p: 68% 14%  8% 10%
    
[libx264 @ 0x191ce5a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 14% 27%  5%  7%  7%  6
    
[libx264 @ 0x191ce5a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 14% 14%  6% 10%  9%  7
    
[libx264 @ 0x191ce5a0] i8c dc,h,v,p: 67% 13% 17%  3%
    
[libx264 @ 0x191ce5a0] Weighted P-Frames: Y:1.9% UV:0.4%
    
[libx264 @ 0x191ce5a0] ref P L0: 62.2% 12.8% 10.3% 14.5%  0.2%
    
[libx264 @ 0x191ce5a0] ref B L0: 88.1%  5.5%  6.4%
    
[libx264 @ 0x191ce5a0] ref B L1: 95.7%  4.3%
    
[libx264 @ 0x191ce5a0] kb/s:1209.03

    I know there is couple errors tough, but i dont know hot to fix it. Also i would be very thankfull if someone can help reduce video size but is not main problem video weights as original avi but sill.

  • FFmpeg : no image is displayed when broadcasting flv made of speex / mellymoser and libx264

    15 septembre 2013, par wvxvw
    ffmpeg -f alsa -i hw:PCH,0 -f x11grab -s 1920x1200 -r 15 -i :0.0 \
    
    -acodec nellymoser -ar 22050 -ac 1 -audio_preload 1000000 -vcodec libx264 \
    
    -preset fast -pix_fmt yuv420p -s 1280x800 -maxrate 1000k -threads 0 -f flv "$URL"

    This is the command I'm using, but I don't get any visible output, only sound. FFmpeg gives no warnings. What am I doing wrong ?

    If I remove -audio_preload, the streaming works, but the audio comes with increasing delay (grows about a minute every minute).

    The output, as per request :

    ffmpeg version 1.0.7 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on May 14 2013 21:59:35 with gcc 4.7.2 (GCC) 20121109 (Red Hat 4.7.2-8)
    
  configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic' --enable-bzlib --disable-crystalhd --enable-frei0r --enable-gnutls --enable-libass --enable-libcdio --enable-libcelt --enable-libdc1394 --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab --enable-avfilter --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
    
  libavutil      51. 73.101 / 51. 73.101
    
  libavcodec     54. 59.100 / 54. 59.100
    
  libavformat    54. 29.104 / 54. 29.104
    
  libavdevice    54.  2.101 / 54.  2.101
    
  libavfilter     3. 17.100 /  3. 17.100
    
  libswscale      2.  1.101 /  2.  1.101
    
  libswresample   0. 15.100 /  0. 15.100
    
  libpostproc    52.  0.100 / 52.  0.100
    
[alsa @ 0xc5e8e0] Estimating duration from bitrate, this may be inaccurate
    
Guessed Channel Layout for  Input Stream #0.0 : stereo
    
Input #0, alsa, from 'hw:PCH,0':
    
  Duration: N/A, start: 1379234523.677560, bitrate: 1536 kb/s
    
    Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
    
[x11grab @ 0xc6cda0] device: :0.0 -> display: :0.0 x: 0 y: 0 width: 1920 height: 1200
    
[x11grab @ 0xc6cda0] shared memory extension found
    
[x11grab @ 0xc6cda0] Estimating duration from bitrate, this may be inaccurate
    
Input #1, x11grab, from ':0.0':
    
  Duration: N/A, start: 1379234523.843273, bitrate: 1105920 kb/s
    
    Stream #1:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 1920x1200, 1105920 kb/s, 15 tbr, 1000k tbn, 15 tbc
    
[libx264 @ 0xc59e00] VBV maxrate specified, but no bufsize, ignored
    
[libx264 @ 0xc59e00] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
    
[libx264 @ 0xc59e00] profile High, level 3.2
    
[libx264 @ 0xc59e00] 264 - core 128 r2223 f6a8615 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=2 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=6 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=1 keyint=250 keyint_min=15 scenecut=40 intra_refresh=0 rc_lookahead=30 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, flv, to 'rtmp://live.justin.tv/app/live_key':
    
  Metadata:
    
    encoder         : Lavf54.29.104
    
    Stream #0:0: Video: h264 ([7][0][0][0] / 0x0007), yuv420p, 1280x800, q=-1--1, 1k tbn, 15 tbc
    
    Stream #0:1: Audio: nellymoser ([6][0][0][0] / 0x0006), 22050 Hz, mono, flt, 128 kb/s
    
Stream mapping:
    
  Stream #1:0 -> #0:0 (rawvideo -> libx264)
    
  Stream #0:0 -> #0:1 (pcm_s16le -> nellymoser)
    
Press [q] to stop, [?] for help
    
[alsa @ 0xc5e8e0] ALSA buffer xrun.

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