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  • Installation en mode ferme

    4 février 2011, par

    Le mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
    C’est la méthode que nous utilisons sur cette même plateforme.
    L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
    Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...)

  • 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

  • Déploiements possibles

    31 janvier 2010, par

    Deux types de déploiements sont envisageable dépendant de deux aspects : La méthode d’installation envisagée (en standalone ou en ferme) ; Le nombre d’encodages journaliers et la fréquentation envisagés ;
    L’encodage de vidéos est un processus lourd consommant énormément de ressources système (CPU et RAM), il est nécessaire de prendre tout cela en considération. Ce système n’est donc possible que sur un ou plusieurs serveurs dédiés.
    Version mono serveur
    La version mono serveur consiste à n’utiliser qu’une (...)

Sur d’autres sites (3924)

  • Problems with frame rate on video conversion using ffmpeg with libx264

    29 mai 2013, par Lars Schroeter

    I have problems with transcoding some videos. I ran the most simple ffmpeg command and it takes very long time and the output file is about 10 times bigger. If I provide the frame rate parameter -r it works well (small file, fast transcoding). What is the problem and how can I solve it ? I don't want to set a fixed frame rate because I guess it's better to leave it the same as source, isn't it ?.

    Maybe the problem is something else, because I found many examples in web where the -r option isn't used. Also transcoding to a different format or with a different source works well without -r option (I tried with ffmpeg 0.7.15 and also 1.2.1). The videos are provided by the users of my website and automatically converted to be suitable for the web. So I need the most general command for automatic conversion.

    In the following ffmpeg output you will find this two suspicious messages :

    • Frame rate very high for a muxer not effciciently supporting it. Please consider specifiying a lower framerate, a different muxer or -vsync 2
    • MB rate (36000000) > level limit (983040)

    The ffmpeg command and output (without -r option) :

        ffmpeg -i '/tmp/standort_aquarium.mp4' -vcodec libx264 output.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 —enable-version3 —enable-libopenjpeg —enable-libvpx —enable-librtmp —extra-libs=-lgcrypt —disable-altivec —disable-armv5te —disable-armv6 —disable-vis
    
      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
    
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/standort_aquarium.mp4' :
    
      Metadata :
    
        major_brand : mp42
    
        minor_version : 0
    
        compatible_brands : mp423gp4isom
    
        creation_time : 2013-04-19 15:04:05
    
      Duration : 00:00:18.24, start : 0.000000, bitrate : 2095 kb/s
    
        Stream #0.0(und) : Video : mpeg4, yuv420p, 640x480 [PAR 1:1 DAR 4:3], 2001 kb/s, 14.97 fps, 30k tbr, 30k tbn, 30k tbc
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
        Stream #0.1(und) : Audio : aac, 48000 Hz, mono, s16, 96 kb/s
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
    File 'output.mp4' already exists. Overwrite ? [y/N] y
    
    [mp4 @ 0x20eed80] Frame rate very high for a muxer not effciciently supporting it.
    
    Please consider specifiying a lower framerate, a different muxer or -vsync 2
    
    [buffer @ 0x20f8820] w:640 h:480 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param :
    
    [libx264 @ 0x20efde0] Default settings detected, using medium profile
    
    [libx264 @ 0x20efde0] using SAR=1/1
    
    [libx264 @ 0x20efde0] MB rate (36000000) > level limit (983040)
    
    [libx264 @ 0x20efde0] using cpu capabilities : MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
    
    [libx264 @ 0x20efde0] profile High, level 5.1
    
    [libx264 @ 0x20efde0] 264 - core 118 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - 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=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, mp4, to 'output.mp4' :
    
      Metadata :
    
        major_brand : mp42
    
        minor_version : 0
    
        compatible_brands : mp423gp4isom
    
        creation_time : 2013-04-19 15:04:05
    
        encoder : Lavf52.111.0
    
        Stream #0.0(und) : Video : libx264, yuv420p, 640x480 [PAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 30k tbn, 30k tbc
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
        Stream #0.1(und) : Audio : libfaac, 48000 Hz, mono, s16, 64 kb/s
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
    Stream mapping :
    
      Stream #0.0 -> #0.0
    
      Stream #0.1 -> #0.1
    
    Press [q] to stop, [?] for help
    
    frame=542630 fps=132 q=33.0 Lsize=   77226kB time=00:00:18.08 bitrate=34976.2kbits/s dup=542358 drop=0
    
    video:68604kB audio:143kB global headers:0kB muxing overhead 12.333275%
    
    frame I:2174  Avg QP:18.72  size : 25040
    
    [libx264 @ 0x20efde0] frame P:136846 Avg QP:25.27  size :    56
    
    [libx264 @ 0x20efde0] frame B:403610 Avg QP:32.99  size :    20
    
    [libx264 @ 0x20efde0] consecutive B-frames :  0.8%  0.0%  0.1% 99.1%
    
    [libx264 @ 0x20efde0] mb I  I16..4 :  5.5% 83.3% 11.1%
    
    [libx264 @ 0x20efde0] mb P  I16..4 :  0.0%  0.0%  0.0%  P16..4 :  0.5%  0.0%  0.0%  0.0%  0.0%    skip:99.4%
    
    [libx264 @ 0x20efde0] mb B  I16..4 :  0.0%  0.0%  0.0%  B16..8 :  0.0%  0.0%  0.0%  direct : 0.0%  skip:100.0%  L0:21.2% L1:78.8% BI : 0.0%
    
    [libx264 @ 0x20efde0] 8x8 transform intra:83.1% inter:85.2%
    
    [libx264 @ 0x20efde0] coded y,uvDC,uvAC intra : 91.2% 95.8% 80.7% inter : 0.0% 0.1% 0.0%
    
    [libx264 @ 0x20efde0] i16 v,h,dc,p : 13% 40% 12% 35%
    
    [libx264 @ 0x20efde0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 19% 34% 15%  4%  4%  5%  6%  7%  8%
    
    [libx264 @ 0x20efde0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu : 20% 38%  6%  4%  6%  6%  8%  6%  6%
    
    [libx264 @ 0x20efde0] i8c dc,h,v,p : 39% 32% 19% 10%
    
    [libx264 @ 0x20efde0] Weighted P-Frames : Y:0.0% UV:0.0%
    
    [libx264 @ 0x20efde0] ref P L0 : 91.5%  5.2%  2.8%  0.4%  0.0%
    
    [libx264 @ 0x20efde0] ref B L0 : 55.7% 43.5%  0.8%
    
    [libx264 @ 0x20efde0] ref B L1 : 97.9%  2.1%
    
    [libx264 @ 0x20efde0] kb/s:31071.04

    The ffmpeg command and output with the -r 24 option :

        ffmpeg -i '/tmp/standort_aquarium.mp4' -r 30000/1001 -vcodec libx264 output.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 —enable-version3 —enable-libopenjpeg —enable-libvpx —enable-librtmp —extra-libs=-lgcrypt —disable-altivec —disable-armv5te —disable-armv6 —disable-vis
    
      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
    
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/standort_aquarium.mp4' :
    
      Metadata :
    
        major_brand : mp42
    
        minor_version : 0
    
        compatible_brands : mp423gp4isom
    
        creation_time : 2013-04-19 15:04:05
    
      Duration : 00:00:18.24, start : 0.000000, bitrate : 2095 kb/s
    
        Stream #0.0(und) : Video : mpeg4, yuv420p, 640x480 [PAR 1:1 DAR 4:3], 2001 kb/s, 14.97 fps, 30k tbr, 30k tbn, 30k tbc
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
        Stream #0.1(und) : Audio : aac, 48000 Hz, mono, s16, 96 kb/s
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
    File 'output.mp4' already exists. Overwrite ? [y/N] y
    
    [buffer @ 0x132e820] w:640 h:480 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param :
    
    [libx264 @ 0x1325de0] Default settings detected, using medium profile
    
    [libx264 @ 0x1325de0] using SAR=1/1
    
    [libx264 @ 0x1325de0] using cpu capabilities : MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
    
    [libx264 @ 0x1325de0] profile High, level 3.0
    
    [libx264 @ 0x1325de0] 264 - core 118 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - 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=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, mp4, to 'output.mp4' :
    
      Metadata :
    
        major_brand : mp42
    
        minor_version : 0
    
        compatible_brands : mp423gp4isom
    
        creation_time : 2013-04-19 15:04:05
    
        encoder : Lavf52.111.0
    
        Stream #0.0(und) : Video : libx264, yuv420p, 640x480 [PAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 30k tbn, 29.97 tbc
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
        Stream #0.1(und) : Audio : libfaac, 48000 Hz, mono, s16, 64 kb/s
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
    Stream mapping :
    
      Stream #0.0 -> #0.0
    
      Stream #0.1 -> #0.1
    
    Press [q] to stop, [?] for help
    
    frame=  542 fps= 36 q=29.0 Lsize=    2059kB time=00:00:18.01 bitrate= 936.3kbits/s dup=270 drop=0
    
    video:1904kB audio:143kB global headers:0kB muxing overhead 0.609224%
    
    frame I:3     Avg QP:22.39  size : 14773
    
    [libx264 @ 0x1325de0] frame P:514   Avg QP:23.98  size :  3675
    
    [libx264 @ 0x1325de0] frame B:25    Avg QP:27.44  size :   643
    
    [libx264 @ 0x1325de0] consecutive B-frames : 93.7%  0.0%  1.1%  5.2%
    
    [libx264 @ 0x1325de0] mb I  I16..4 : 16.4% 78.3%  5.3%
    
    [libx264 @ 0x1325de0] mb P  I16..4 :  1.6%  6.3%  0.3%  P16..4 : 30.8%  8.6%  3.1%  0.0%  0.0%    skip:49.4%
    
    [libx264 @ 0x1325de0] mb B  I16..4 :  0.4%  0.7%  0.0%  B16..8 : 13.2%  1.6%  0.2%  direct : 0.3%  skip:83.6%  L0:50.0% L1:47.1% BI : 2.9%
    
    [libx264 @ 0x1325de0] 8x8 transform intra:77.1% inter:83.1%
    
    [libx264 @ 0x1325de0] coded y,uvDC,uvAC intra : 62.0% 76.4% 24.4% inter : 17.9% 26.3% 2.3%
    
    [libx264 @ 0x1325de0] i16 v,h,dc,p : 14% 60% 13% 13%
    
    [libx264 @ 0x1325de0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 15% 35% 33%  2%  3%  3%  3%  3%  4%
    
    [libx264 @ 0x1325de0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu : 15% 40% 12%  4%  7%  7%  7%  5%  4%
    
    [libx264 @ 0x1325de0] i8c dc,h,v,p : 46% 34% 16%  4%
    
    [libx264 @ 0x1325de0] Weighted P-Frames : Y:8.0% UV:4.5%
    
    [libx264 @ 0x1325de0] ref P L0 : 65.6% 16.7%  8.8%  7.9%  0.9%
    
    [libx264 @ 0x1325de0] ref B L0 : 85.9% 13.3%  0.8%
    
    [libx264 @ 0x1325de0] ref B L1 : 88.7% 11.3%
    
    [libx264 @ 0x1325de0] kb/s:862.28

    The video source is temporarily available under : https://www.dropbox.com/s/4xg147z77u40g87/standort_aquarium.mp4

  • Problems with frame rate on video conversion using ffmpeg with libx264 [migrated]

    29 mai 2013, par Lars Schroeter

    I have problems with transcoding some videos. I ran the most simple ffmpeg command and it takes very long time and the output file is about 10 times bigger. If I provide the frame rate parameter -r it works well (small file, fast transcoding). What is the problem and how can I solve it ? I don't want to set a fixed frame rate because I guess it's better to leave it the same as source, isn't it ?.

    Maybe the problem is something else, because I found many examples in web where the -r option isn't used. Also transcoding to a different format or with a different source works well without -r option (I tried with ffmpeg 0.7.15 and also 1.2.1). The videos are provided by the users of my website and automatically converted to be suitable for the web. So I need the most general command for automatic conversion.

    In the following ffmpeg output you will find this two suspicious messages :

    • Frame rate very high for a muxer not effciciently supporting it. Please consider specifiying a lower framerate, a different muxer or -vsync 2
    • MB rate (36000000) > level limit (983040)

    The ffmpeg command and output (without -r option) :

        ffmpeg -i '/tmp/standort_aquarium.mp4' -vcodec libx264 output.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 —enable-version3 —enable-libopenjpeg —enable-libvpx —enable-librtmp —extra-libs=-lgcrypt —disable-altivec —disable-armv5te —disable-armv6 —disable-vis
    
      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
    
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/standort_aquarium.mp4' :
    
      Metadata :
    
        major_brand : mp42
    
        minor_version : 0
    
        compatible_brands : mp423gp4isom
    
        creation_time : 2013-04-19 15:04:05
    
      Duration : 00:00:18.24, start : 0.000000, bitrate : 2095 kb/s
    
        Stream #0.0(und) : Video : mpeg4, yuv420p, 640x480 [PAR 1:1 DAR 4:3], 2001 kb/s, 14.97 fps, 30k tbr, 30k tbn, 30k tbc
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
        Stream #0.1(und) : Audio : aac, 48000 Hz, mono, s16, 96 kb/s
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
    File 'output.mp4' already exists. Overwrite ? [y/N] y
    
    [mp4 @ 0x20eed80] Frame rate very high for a muxer not effciciently supporting it.
    
    Please consider specifiying a lower framerate, a different muxer or -vsync 2
    
    [buffer @ 0x20f8820] w:640 h:480 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param :
    
    [libx264 @ 0x20efde0] Default settings detected, using medium profile
    
    [libx264 @ 0x20efde0] using SAR=1/1
    
    [libx264 @ 0x20efde0] MB rate (36000000) > level limit (983040)
    
    [libx264 @ 0x20efde0] using cpu capabilities : MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
    
    [libx264 @ 0x20efde0] profile High, level 5.1
    
    [libx264 @ 0x20efde0] 264 - core 118 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - 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=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, mp4, to 'output.mp4' :
    
      Metadata :
    
        major_brand : mp42
    
        minor_version : 0
    
        compatible_brands : mp423gp4isom
    
        creation_time : 2013-04-19 15:04:05
    
        encoder : Lavf52.111.0
    
        Stream #0.0(und) : Video : libx264, yuv420p, 640x480 [PAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 30k tbn, 30k tbc
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
        Stream #0.1(und) : Audio : libfaac, 48000 Hz, mono, s16, 64 kb/s
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
    Stream mapping :
    
      Stream #0.0 -> #0.0
    
      Stream #0.1 -> #0.1
    
    Press [q] to stop, [?] for help
    
    frame=542630 fps=132 q=33.0 Lsize=   77226kB time=00:00:18.08 bitrate=34976.2kbits/s dup=542358 drop=0
    
    video:68604kB audio:143kB global headers:0kB muxing overhead 12.333275%
    
    frame I:2174  Avg QP:18.72  size : 25040
    
    [libx264 @ 0x20efde0] frame P:136846 Avg QP:25.27  size :    56
    
    [libx264 @ 0x20efde0] frame B:403610 Avg QP:32.99  size :    20
    
    [libx264 @ 0x20efde0] consecutive B-frames :  0.8%  0.0%  0.1% 99.1%
    
    [libx264 @ 0x20efde0] mb I  I16..4 :  5.5% 83.3% 11.1%
    
    [libx264 @ 0x20efde0] mb P  I16..4 :  0.0%  0.0%  0.0%  P16..4 :  0.5%  0.0%  0.0%  0.0%  0.0%    skip:99.4%
    
    [libx264 @ 0x20efde0] mb B  I16..4 :  0.0%  0.0%  0.0%  B16..8 :  0.0%  0.0%  0.0%  direct : 0.0%  skip:100.0%  L0:21.2% L1:78.8% BI : 0.0%
    
    [libx264 @ 0x20efde0] 8x8 transform intra:83.1% inter:85.2%
    
    [libx264 @ 0x20efde0] coded y,uvDC,uvAC intra : 91.2% 95.8% 80.7% inter : 0.0% 0.1% 0.0%
    
    [libx264 @ 0x20efde0] i16 v,h,dc,p : 13% 40% 12% 35%
    
    [libx264 @ 0x20efde0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 19% 34% 15%  4%  4%  5%  6%  7%  8%
    
    [libx264 @ 0x20efde0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu : 20% 38%  6%  4%  6%  6%  8%  6%  6%
    
    [libx264 @ 0x20efde0] i8c dc,h,v,p : 39% 32% 19% 10%
    
    [libx264 @ 0x20efde0] Weighted P-Frames : Y:0.0% UV:0.0%
    
    [libx264 @ 0x20efde0] ref P L0 : 91.5%  5.2%  2.8%  0.4%  0.0%
    
    [libx264 @ 0x20efde0] ref B L0 : 55.7% 43.5%  0.8%
    
    [libx264 @ 0x20efde0] ref B L1 : 97.9%  2.1%
    
    [libx264 @ 0x20efde0] kb/s:31071.04

    The ffmpeg command and output with the -r 24 option :

        ffmpeg -i '/tmp/standort_aquarium.mp4' -r 30000/1001 -vcodec libx264 output.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 —enable-version3 —enable-libopenjpeg —enable-libvpx —enable-librtmp —extra-libs=-lgcrypt —disable-altivec —disable-armv5te —disable-armv6 —disable-vis
    
      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
    
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/standort_aquarium.mp4' :
    
      Metadata :
    
        major_brand : mp42
    
        minor_version : 0
    
        compatible_brands : mp423gp4isom
    
        creation_time : 2013-04-19 15:04:05
    
      Duration : 00:00:18.24, start : 0.000000, bitrate : 2095 kb/s
    
        Stream #0.0(und) : Video : mpeg4, yuv420p, 640x480 [PAR 1:1 DAR 4:3], 2001 kb/s, 14.97 fps, 30k tbr, 30k tbn, 30k tbc
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
        Stream #0.1(und) : Audio : aac, 48000 Hz, mono, s16, 96 kb/s
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
    File 'output.mp4' already exists. Overwrite ? [y/N] y
    
    [buffer @ 0x132e820] w:640 h:480 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param :
    
    [libx264 @ 0x1325de0] Default settings detected, using medium profile
    
    [libx264 @ 0x1325de0] using SAR=1/1
    
    [libx264 @ 0x1325de0] using cpu capabilities : MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
    
    [libx264 @ 0x1325de0] profile High, level 3.0
    
    [libx264 @ 0x1325de0] 264 - core 118 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - 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=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, mp4, to 'output.mp4' :
    
      Metadata :
    
        major_brand : mp42
    
        minor_version : 0
    
        compatible_brands : mp423gp4isom
    
        creation_time : 2013-04-19 15:04:05
    
        encoder : Lavf52.111.0
    
        Stream #0.0(und) : Video : libx264, yuv420p, 640x480 [PAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 30k tbn, 29.97 tbc
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
        Stream #0.1(und) : Audio : libfaac, 48000 Hz, mono, s16, 64 kb/s
    
        Metadata :
    
          creation_time : 2013-04-19 15:04:05
    
    Stream mapping :
    
      Stream #0.0 -> #0.0
    
      Stream #0.1 -> #0.1
    
    Press [q] to stop, [?] for help
    
    frame=  542 fps= 36 q=29.0 Lsize=    2059kB time=00:00:18.01 bitrate= 936.3kbits/s dup=270 drop=0
    
    video:1904kB audio:143kB global headers:0kB muxing overhead 0.609224%
    
    frame I:3     Avg QP:22.39  size : 14773
    
    [libx264 @ 0x1325de0] frame P:514   Avg QP:23.98  size :  3675
    
    [libx264 @ 0x1325de0] frame B:25    Avg QP:27.44  size :   643
    
    [libx264 @ 0x1325de0] consecutive B-frames : 93.7%  0.0%  1.1%  5.2%
    
    [libx264 @ 0x1325de0] mb I  I16..4 : 16.4% 78.3%  5.3%
    
    [libx264 @ 0x1325de0] mb P  I16..4 :  1.6%  6.3%  0.3%  P16..4 : 30.8%  8.6%  3.1%  0.0%  0.0%    skip:49.4%
    
    [libx264 @ 0x1325de0] mb B  I16..4 :  0.4%  0.7%  0.0%  B16..8 : 13.2%  1.6%  0.2%  direct : 0.3%  skip:83.6%  L0:50.0% L1:47.1% BI : 2.9%
    
    [libx264 @ 0x1325de0] 8x8 transform intra:77.1% inter:83.1%
    
    [libx264 @ 0x1325de0] coded y,uvDC,uvAC intra : 62.0% 76.4% 24.4% inter : 17.9% 26.3% 2.3%
    
    [libx264 @ 0x1325de0] i16 v,h,dc,p : 14% 60% 13% 13%
    
    [libx264 @ 0x1325de0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 15% 35% 33%  2%  3%  3%  3%  3%  4%
    
    [libx264 @ 0x1325de0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu : 15% 40% 12%  4%  7%  7%  7%  5%  4%
    
    [libx264 @ 0x1325de0] i8c dc,h,v,p : 46% 34% 16%  4%
    
    [libx264 @ 0x1325de0] Weighted P-Frames : Y:8.0% UV:4.5%
    
    [libx264 @ 0x1325de0] ref P L0 : 65.6% 16.7%  8.8%  7.9%  0.9%
    
    [libx264 @ 0x1325de0] ref B L0 : 85.9% 13.3%  0.8%
    
    [libx264 @ 0x1325de0] ref B L1 : 88.7% 11.3%
    
    [libx264 @ 0x1325de0] kb/s:862.28

    The video source is temporarily available under : https://www.dropbox.com/s/4xg147z77u40g87/standort_aquarium.mp4

  • Android FFMPEG example to get frames from video using NDK

    22 avril 2016, par Mihir Shah

    I want to develop video merge application in android. I just able to generate ffmpeg.so file using NDK and JNI. But now I want to get frames of input video(around 15 sec.). Any one have an idea how to get the frames from video using ffmpeg ? Is there direct native method available for that to get frames in ffmpeg ? And how to pass command from java class to native mathod to perform video merging functionality ? Just give me solution for that.

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