Recherche avancée

Médias (91)

Autres articles (74)

  • 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 (...)

  • Submit enhancements and plugins

    13 avril 2011

    If you have developed a new extension to add one or more useful features to MediaSPIP, let us know and its integration into the core MedisSPIP functionality will be considered.
    You can use the development discussion list to request for help with creating a plugin. As MediaSPIP is based on SPIP - or you can use the SPIP discussion list SPIP-Zone.

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

Sur d’autres sites (6909)

  • FFMPEG-jpg sequence to H.264 generate best result

    18 octobre 2015, par Ziki

    I have a jpg sequence which I need to convert to mp4, and I need to get the best result.

    As I understood, I need to supply the ’ffmpeg’ cmdln the following : bitrate, minrate, maxrate and bufsize.

    The only thing that I found about calculating the above params, is if I have the final output file size. But considering I want the best quality, I don’t know the final output file size, and I don’t care what it will be.

    Of course I have the framerate and the total frames.

    Here’s my ffmpeg cmdln :

    ffmpeg
    -r 24
    -start_number 0
    -i "C:\pathToSequence\%06d.jpg"
    -c copy
    -vframes 792
    -threads 16
    -pix_fmt yuv420p
    -c:v libx264
    "C:\pathToOutput\result.mp4"

    The total size of the sequence is 128MB, 792 frames, 24 framerate, resolution 1280x720.

    Until now I used to add the following to the ffmpeg cmdln :

    -b:v 10000k -minrate 10000k -maxrate 10000k -bufsize 10000k

    And if it was 1080p :

    -b:v 20000k -minrate 20000k -maxrate 20000k -bufsize 20000k

    And I figured that if I put the max value that ffmpeg can handle (2147480) it will generate almost the same result as the above. But I think it’s a bad approach(correct me if I’m wrong).

    So if I need to get the best result, how do I calculate it(or I can simply put the max value) ?

    Also I would like if you have another helpful flags to add to make the best final result.

    —EDIT—

    Here’s the updated command :

    O:\tools\ffmpeg -framerate 24 -start_number 0 -i "C:\share\localProcess\test\%05d.jpg" -vframes 54 -pix_fmt yuv420p -c:v libx264 -preset veryslow -qp 1 "C:\share\localProcess\result\result.mp4"

    And this is the ouptout :

    ffmpeg version N-72383-g7206b94 Copyright (c) 2000-2015 the FFmpeg developers
     built with gcc 4.9.2 (GCC)
     configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmfx --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
     libavutil      54. 26.100 / 54. 26.100
     libavcodec     56. 41.100 / 56. 41.100
     libavformat    56. 33.101 / 56. 33.101
     libavdevice    56.  4.100 / 56.  4.100
     libavfilter     5. 16.101 /  5. 16.101
     libswscale      3.  1.101 /  3.  1.101
     libswresample   1.  1.100 /  1.  1.100
     libpostproc    53.  3.100 / 53.  3.100
    Input #0, image2, from 'C:\share\localProcess\test\%05d.jpg':
     Duration: 00:00:02.25, start: 0.000000, bitrate: N/A
       Stream #0:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 1280x720 [SAR 72:72 DAR 16:9], 24 fps, 24 tbr, 24 tbn, 24 tbc
    [swscaler @ 0000000004d6bf60] deprecated pixel format used, make sure you did set range correctly
    [libx264 @ 0000000004d7a9e0] using SAR=1/1
    [libx264 @ 0000000004d7a9e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    [libx264 @ 0000000004d7a9e0] profile High, level 5.0
    [libx264 @ 0000000004d7a9e0] 264 - core 146 r2538 121396c - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=16 deblock=1:0:0 analyse=0x3:0x133 me=umh subme=9 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=24 chroma_me=1 trellis=2 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=8 b_pyramid=2 b_adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=24 scenecut=40 intra_refresh=0 rc=cqp mbtree=0 qp=1 ip_ratio=1.40 pb_ratio=1.30 aq=0
    Output #0, mp4, to 'C:\share\localProcess\result\result.mp4':
     Metadata:
       encoder         : Lavf56.33.101
       Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 24 fps, 12288 tbn, 24 tbc
       Metadata:
         encoder         : Lavc56.41.100 libx264
    Stream mapping:
     Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    Press [q] to stop, [?] for help
    frame=   54 fps= 38 q=-1.0 Lsize=     542kB time=00:00:02.16 bitrate=2050.0kbits/s
    video:541kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.251171%
    [libx264 @ 0000000004d7a9e0] frame I:1     Avg QP: 0.00  size: 23629
    [libx264 @ 0000000004d7a9e0] frame P:22    Avg QP: 1.00  size: 16146
    [libx264 @ 0000000004d7a9e0] frame B:31    Avg QP: 2.81  size:  5623
    [libx264 @ 0000000004d7a9e0] consecutive B-frames: 16.7% 29.6% 16.7%  0.0%  9.3%  0.0% 13.0% 14.8%  0.0%
    [libx264 @ 0000000004d7a9e0] mb I  I16..4: 74.9% 20.2%  4.9%
    [libx264 @ 0000000004d7a9e0] mb P  I16..4:  0.3%  0.1%  1.2%  P16..4:  2.7%  0.4%  0.8%  0.2%  0.1%    skip:94.2%
    [libx264 @ 0000000004d7a9e0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  3.0%  0.4%  0.5%  direct: 0.3%  skip:95.7%  L0:56.0% L1:40.5% BI: 3.5%
    [libx264 @ 0000000004d7a9e0] 8x8 transform intra:16.5% inter:18.4%
    [libx264 @ 0000000004d7a9e0] direct mvs  spatial:54.8% temporal:45.2%
    [libx264 @ 0000000004d7a9e0] coded y,uvDC,uvAC intra: 33.9% 49.8% 49.5% inter: 1.3% 2.9% 2.9%
    [libx264 @ 0000000004d7a9e0] i16 v,h,dc,p: 79% 13%  4%  4%
    [libx264 @ 0000000004d7a9e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 22% 48%  2%  4%  6%  3%  1%  2%
    [libx264 @ 0000000004d7a9e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 13% 13% 43%  5%  6%  4%  5%  5%  6%
    [libx264 @ 0000000004d7a9e0] i8c dc,h,v,p: 78% 12%  7%  3%
    [libx264 @ 0000000004d7a9e0] Weighted P-Frames: Y:0.0% UV:0.0%
    [libx264 @ 0000000004d7a9e0] ref P L0: 65.7%  2.4%  8.9%  4.5%  2.3%  3.0%  2.8%  3.9%  3.5%  0.8%  0.3%  0.5%  0.3%  0.5%  0.2%  0.3%
    [libx264 @ 0000000004d7a9e0] ref B L0: 76.9% 12.0%  3.4%  0.7%  3.6%  0.5%  2.1%  0.4%  0.1%  0.0%  0.1%  0.0%  0.1%  0.1%
    [libx264 @ 0000000004d7a9e0] ref B L1: 98.2%  1.8%
    [libx264 @ 0000000004d7a9e0] kb/s:1966.80

    Link to download JPG sequence.

    Link to download the result.

  • FFMPEG-jpg sequence to H.264 generate best result

    18 octobre 2015, par Ziki

    I have a jpg sequence which I need to convert to mp4, and I need to get the best result.

    As I understood, I need to supply the ’ffmpeg’ cmdln the following : bitrate, minrate, maxrate and bufsize.

    The only thing that I found about calculating the above params, is if I have the final output file size. But considering I want the best quality, I don’t know the final output file size, and I don’t care what it will be.

    Of course I have the framerate and the total frames.

    Here’s my ffmpeg cmdln :

    ffmpeg
    -r 24
    -start_number 0
    -i "C:\pathToSequence\%06d.jpg"
    -c copy
    -vframes 792
    -threads 16
    -pix_fmt yuv420p
    -c:v libx264
    "C:\pathToOutput\result.mp4"

    The total size of the sequence is 128MB, 792 frames, 24 framerate, resolution 1280x720.

    Until now I used to add the following to the ffmpeg cmdln :

    -b:v 10000k -minrate 10000k -maxrate 10000k -bufsize 10000k

    And if it was 1080p :

    -b:v 20000k -minrate 20000k -maxrate 20000k -bufsize 20000k

    And I figured that if I put the max value that ffmpeg can handle (2147480) it will generate almost the same result as the above. But I think it’s a bad approach(correct me if I’m wrong).

    So if I need to get the best result, how do I calculate it(or I can simply put the max value) ?

    Also I would like if you have another helpful flags to add to make the best final result.

    —EDIT—

    Here’s the updated command :

    O:\tools\ffmpeg -framerate 24 -start_number 0 -i "C:\share\localProcess\test\%05d.jpg" -vframes 54 -pix_fmt yuv420p -c:v libx264 -preset veryslow -qp 1 "C:\share\localProcess\result\result.mp4"

    And this is the ouptout :

    ffmpeg version N-72383-g7206b94 Copyright (c) 2000-2015 the FFmpeg developers
     built with gcc 4.9.2 (GCC)
     configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmfx --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
     libavutil      54. 26.100 / 54. 26.100
     libavcodec     56. 41.100 / 56. 41.100
     libavformat    56. 33.101 / 56. 33.101
     libavdevice    56.  4.100 / 56.  4.100
     libavfilter     5. 16.101 /  5. 16.101
     libswscale      3.  1.101 /  3.  1.101
     libswresample   1.  1.100 /  1.  1.100
     libpostproc    53.  3.100 / 53.  3.100
    Input #0, image2, from 'C:\share\localProcess\test\%05d.jpg':
     Duration: 00:00:02.25, start: 0.000000, bitrate: N/A
       Stream #0:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 1280x720 [SAR 72:72 DAR 16:9], 24 fps, 24 tbr, 24 tbn, 24 tbc
    [swscaler @ 0000000004d6bf60] deprecated pixel format used, make sure you did set range correctly
    [libx264 @ 0000000004d7a9e0] using SAR=1/1
    [libx264 @ 0000000004d7a9e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    [libx264 @ 0000000004d7a9e0] profile High, level 5.0
    [libx264 @ 0000000004d7a9e0] 264 - core 146 r2538 121396c - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=16 deblock=1:0:0 analyse=0x3:0x133 me=umh subme=9 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=24 chroma_me=1 trellis=2 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=8 b_pyramid=2 b_adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=24 scenecut=40 intra_refresh=0 rc=cqp mbtree=0 qp=1 ip_ratio=1.40 pb_ratio=1.30 aq=0
    Output #0, mp4, to 'C:\share\localProcess\result\result.mp4':
     Metadata:
       encoder         : Lavf56.33.101
       Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 24 fps, 12288 tbn, 24 tbc
       Metadata:
         encoder         : Lavc56.41.100 libx264
    Stream mapping:
     Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    Press [q] to stop, [?] for help
    frame=   54 fps= 38 q=-1.0 Lsize=     542kB time=00:00:02.16 bitrate=2050.0kbits/s
    video:541kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.251171%
    [libx264 @ 0000000004d7a9e0] frame I:1     Avg QP: 0.00  size: 23629
    [libx264 @ 0000000004d7a9e0] frame P:22    Avg QP: 1.00  size: 16146
    [libx264 @ 0000000004d7a9e0] frame B:31    Avg QP: 2.81  size:  5623
    [libx264 @ 0000000004d7a9e0] consecutive B-frames: 16.7% 29.6% 16.7%  0.0%  9.3%  0.0% 13.0% 14.8%  0.0%
    [libx264 @ 0000000004d7a9e0] mb I  I16..4: 74.9% 20.2%  4.9%
    [libx264 @ 0000000004d7a9e0] mb P  I16..4:  0.3%  0.1%  1.2%  P16..4:  2.7%  0.4%  0.8%  0.2%  0.1%    skip:94.2%
    [libx264 @ 0000000004d7a9e0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  3.0%  0.4%  0.5%  direct: 0.3%  skip:95.7%  L0:56.0% L1:40.5% BI: 3.5%
    [libx264 @ 0000000004d7a9e0] 8x8 transform intra:16.5% inter:18.4%
    [libx264 @ 0000000004d7a9e0] direct mvs  spatial:54.8% temporal:45.2%
    [libx264 @ 0000000004d7a9e0] coded y,uvDC,uvAC intra: 33.9% 49.8% 49.5% inter: 1.3% 2.9% 2.9%
    [libx264 @ 0000000004d7a9e0] i16 v,h,dc,p: 79% 13%  4%  4%
    [libx264 @ 0000000004d7a9e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 22% 48%  2%  4%  6%  3%  1%  2%
    [libx264 @ 0000000004d7a9e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 13% 13% 43%  5%  6%  4%  5%  5%  6%
    [libx264 @ 0000000004d7a9e0] i8c dc,h,v,p: 78% 12%  7%  3%
    [libx264 @ 0000000004d7a9e0] Weighted P-Frames: Y:0.0% UV:0.0%
    [libx264 @ 0000000004d7a9e0] ref P L0: 65.7%  2.4%  8.9%  4.5%  2.3%  3.0%  2.8%  3.9%  3.5%  0.8%  0.3%  0.5%  0.3%  0.5%  0.2%  0.3%
    [libx264 @ 0000000004d7a9e0] ref B L0: 76.9% 12.0%  3.4%  0.7%  3.6%  0.5%  2.1%  0.4%  0.1%  0.0%  0.1%  0.0%  0.1%  0.1%
    [libx264 @ 0000000004d7a9e0] ref B L1: 98.2%  1.8%
    [libx264 @ 0000000004d7a9e0] kb/s:1966.80

    Link to download JPG sequence.

    Link to download the result.

  • Unable to find a suitable output format for '–' – : Invalid argument [duplicate]

    16 octobre 2015, par Priyo Chatterjee

    This question already has an answer here :

    My ffmpeg command is :
    ffmpeg -y -i -f inputfile.mp4 -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -r 24 – g 24 -b:v 1500k -maxrate 1500k -bufsize 1000k -vf "scale=-1:720" outputfile720.mp4

    and the terminal output is:ffmpeg -y -i original.mp4 -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -r 24 – g 24 -b:v 1500k -maxrate 1500k -bufsize 1000k -vf "scale=-1:720" outputfile720.mp4
    ffmpeg version git-2015-10-13-e652f69 Copyright (c) 2000-2015 the FFmpeg developers
    built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1 14.04)
    configuration : —prefix=/usr/local/src/ffmpeg_build —extra-cflags=-I/usr/local/src/ffmpeg_build/include —extra-ldflags=-L/usr/local/src/ffmpeg_build/lib —bindir=/usr/local/bin —extra-libs=-ldl —enable-gpl —enable-libass —enable-libfaac —enable-libfdk-aac —enable-libmp3lame —enable-libopus —enable-postproc —enable-libtheora —enable-libvorbis —enable-libvpx —enable-libx264 —enable-nonfree
    libavutil 55. 3.100 / 55. 3.100
    libavcodec 57. 5.100 / 57. 5.100
    libavformat 57. 3.100 / 57. 3.100
    libavdevice 57. 0.100 / 57. 0.100
    libavfilter 6. 11.100 / 6. 11.100
    libswscale 4. 0.100 / 4. 0.100
    libswresample 2. 0.100 / 2. 0.100
    libpostproc 54. 0.100 / 54. 0.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ’original.mp4’ :
    Metadata :
    major_brand : isom
    minor_version : 1
    compatible_brands : isom
    creation_time : 2014-04-28 02:38:40
    Duration : 00:28:28.71, start : 0.000000, bitrate : 1177 kb/s
    Stream #0:0(und) : Audio : aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 107 kb/s (default)
    Metadata :
    creation_time : 2014-04-28 02:38:40
    handler_name : GPAC ISO Audio Handler
    Stream #0:1(und) : Video : h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709/unknown/unknown), 720x404, 1066 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
    Metadata :
    creation_time : 2014-04-28 02:25:52
    handler_name : L-SMASH Video Media Handler
    encoder : AVC Coding
    [NULL @ 0x2925920] Unable to find a suitable output format for ’–’
    – : Invalid argument