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  • Modifier la date de publication

    21 juin 2013, par

    Comment changer la date de publication d’un média ?
    Il faut au préalable rajouter un champ "Date de publication" dans le masque de formulaire adéquat :
    Administrer > Configuration des masques de formulaires > Sélectionner "Un média"
    Dans la rubrique "Champs à ajouter, cocher "Date de publication "
    Cliquer en bas de la page sur Enregistrer

  • 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

  • Ajouter notes et légendes aux images

    7 février 2011, par

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

Sur d’autres sites (7768)

  • FFMpeg conversions from avi to mp4 does not succeed with video for safari and IE browsers

    24 septembre 2020, par user27240

    The ffmpeg command below does convert mp4 file from avi file successfully for chrome browser, but with browsers such as 
safari and IE(I have not tested with other browsers yet.) I can not see the video and I only can hear the audio 
which simply means that safari and IE browsers do not accept the conversion of video from avi file to mp4 file.

    



    for i in /xxxxxx/xxxxxxx/xxxxxxx/*.avi; do ffmpeg -i "$i" -pix_fmt yuvj422p "/xxxxxx/xxxxxxx/xxxxxxx/$(basename "$i" .avi).mp4"; done    


    



    By the way, when I tried from flv file to mp4 with the same ffmpeg command both video and audio were successfully converted for chrome, safari, and IE.(I have not tested yet with others.)

    



    The avi file is the one I shot with my camera, and flv file is the one I downloaded from web.

    



    Can anyone please help me out ?

    



    The log file below is for the ffmpeg command from avi to mp4.(avi file is the one I shot with my camera)

    



    [root@server-xxxxxxx-x ~]# for i in /xxxxxx/xxxxxxx/xxxxxxx/09190100_5ba1211c6905e.avi;  do ffmpeg -i "$i" -pix_fmt yuvj422p "/xxxxxx/xxxxxxx/xxxxxxx/$(basename "$i" .avi).mp4"; done
ffmpeg version N-46948-g776cdd1dc8-static https://johnvansickle.com/ffmpeg/  Copyright  (c) 2000-2018 the FFmpeg developers
  built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --  disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 -- enable-libxml2 --enable-libxvid --enable-libzimg
  libavutil      56. 19.101 / 56. 19.101
  libavcodec     58. 30.100 / 58. 30.100
  libavformat    58. 18.100 / 58. 18.100
  libavdevice    58.  4.103 / 58.  4.103
  libavfilter     7. 31.100 /  7. 31.100
  libswscale      5.  2.100 /  5.  2.100
  libswresample   3.  2.100 /  3.  2.100
  libpostproc    55.  2.100 / 55.  2.100
  Guessed Channel Layout for Input Stream #0.1 : mono
  Input #0, avi, from '/xxxxxx/xxxxxxx/xxxxxxx/09190100_5ba1211c6905e.avi':
   Metadata:
    creation_time   : 2018-09-14 00:18:07
    encoder         : CanonMVI06
    Duration: 00:00:04.20, start: 0.000000, bitrate: 12999 kb/s
     Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p(pc,   bt470bg/unknown/unknown), 640x480, 12384 kb/s, 30 fps, 30 tbr, 30 tbn, 30 tbc
      Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, mono, s16, 705 kb/s
  Stream mapping:
   Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
   Stream #0:1 -> #0:1 (pcm_s16le (native) -> aac (native))
  Press [q] to stop, [?] for help
  [libx264 @ 0x66f7c40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2   AVX2
  [libx264 @ 0x66f7c40] profile High 4:2:2, level 3.0, 4:2:2, 8-bit
  [libx264 @ 0x66f7c40] 264 - core 157 r2932 303c484 - 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=3    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=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 '/xxxxxx/xxxxxxx/xxxxxxx/09190100_5ba1211c6905e.mp4':
   Metadata:
     encoder         : Lavf58.18.100
     Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuvj422p(pc), 640x480, q=-1- -1, 30 fps, 1000k tbn, 30 tbc
     Metadata:
       encoder         : Lavc58.30.100 libx264
      Side data:
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
      Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 69 kb/s
      Metadata:
        encoder         : Lavc58.30.100 aac
  frame=  126 fps= 42 q=-1.0 Lsize=     243kB time=00:00:04.20 bitrate= 474.3kbits/s    speed= 1.4x
video:203kB audio:35kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead:    2.440238%
[libx264 @ 0x66f7c40] frame I:1     Avg QP:24.22  size: 16730
[libx264 @ 0x66f7c40] frame P:32    Avg QP:24.48  size:  4020
[libx264 @ 0x66f7c40] frame B:93    Avg QP:25.83  size:   662
[libx264 @ 0x66f7c40] consecutive B-frames:  1.6%  0.0%  0.0% 98.4%
[libx264 @ 0x66f7c40] mb I  I16..4: 11.2% 86.4%  2.4%
[libx264 @ 0x66f7c40] mb P  I16..4:  1.0%  0.8%  0.0%  P16..4: 54.9%  7.1%  6.3%  0.0%     0.0%    skip:29.8%
[libx264 @ 0x66f7c40] mb B  I16..4:  0.1%  0.1%  0.0%  B16..8: 26.0%  0.2%  0.0%  direct:     1.1%  skip:72.5%  L0:47.1% L1:52.0% BI: 1.0%
[libx264 @ 0x66f7c40] 8x8 transform intra:68.3% inter:88.6%
[libx264 @ 0x66f7c40] coded y,uvDC,uvAC intra: 51.1% 78.4% 10.4% inter: 4.8% 24.4% 0.1%
[libx264 @ 0x66f7c40] i16 v,h,dc,p: 17% 26%  5% 52%
[libx264 @ 0x66f7c40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 32% 22%  3%  4%  2%  6%  5%  5%
[libx264 @ 0x66f7c40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 25% 12%  1% 12%  3% 10%  4%  2%
[libx264 @ 0x66f7c40] i8c dc,h,v,p: 48% 23% 25%  4%
[libx264 @ 0x66f7c40] Weighted P-Frames: Y:3.1% UV:3.1%
[libx264 @ 0x66f7c40] ref P L0: 45.3%  9.1% 32.9% 12.4%  0.3%
[libx264 @ 0x66f7c40] ref B L0: 74.7% 20.7%  4.7%
[libx264 @ 0x66f7c40] ref B L1: 88.4% 11.6%
[libx264 @ 0x66f7c40] kb/s:394.12


    


  • FFmpeg uses xface to merge videos without transition effects

    30 avril 2024, par soapbar

    ffmpeg -i ./first.mp4 -i ./first.mp4 -filter_complex "xfade=transition=circlecrop:duration=1:offset=4,format=yuv420p" -y output.mp4

    


    FFMPEG version 6.1.1, the video is generated normally without any error prompts, but the generated video does not have any transition effects.

    


    output

    


    
ffmpeg version 6.1.1-tessus  https://evermeet.cx/ffmpeg/  Copyright (c) 2000-2023 the FFmpeg developers
  built with Apple clang version 11.0.0 (clang-1100.0.33.17)
  configuration : —cc=/usr/bin/clang —prefix=/opt/ffmpeg —extra-version=tessus —enable-avisynth —enable-fontconfig —enable-gpl —enable-libaom —enable-libass —enable-libbluray —enable-libdav1d —enable-libfreetype —enable-libgsm —enable-libmodplug —enable-libmp3lame —enable-libmysofa —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenh264 —enable-libopenjpeg —enable-libopus —enable-librubberband —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libspeex —enable-libtheora —enable-libtwolame —enable-libvidstab —enable-libvmaf —enable-libvo-amrwbenc —enable-libvorbis —enable-libvpx —enable-libwebp —enable-libx264 —enable-libx265 —enable-libxavs —enable-libxml2 —enable-libxvid —enable-libzimg —enable-libzmq —enable-libzvbi —enable-version3 —pkg-config-flags=—static —disable-ffplay
  libavutil      58. 29.100 / 58. 29.100
  libavcodec     60. 31.102 / 60. 31.102
  libavformat    60. 16.100 / 60. 16.100
  libavdevice    60.  3.100 / 60.  3.100
  libavfilter     9. 12.100 /  9. 12.100
  libswscale      7.  5.100 /  7.  5.100
  libswresample   4. 12.100 /  4. 12.100
  libpostproc    57.  3.100 / 57.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './first.mp4' :
  Metadata :
    major_brand : isom
    minor_version : 512
    compatible_brands : isomiso2avc1mp41
    encoder : Lavf61.1.100
  Duration : 00:00:05.00, start : 0.000000, bitrate : 110 kb/s
  Stream #0:0[0x1](und) : Video : h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1080x1920 [SAR 4095:4096 DAR 36855:65536], 109 kb/s, SAR 14317:14320 DAR 128853:229120, 0.20 fps, 0.20 tbr, 16384 tbn (default)
    Metadata :
      handler_name : VideoHandler
      vendor_id : [0][0][0][0]
      encoder : Lavc61.3.100 libx264
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from './first.mp4' :
  Metadata :
    major_brand : isom
    minor_version : 512
    compatible_brands : isomiso2avc1mp41
    encoder : Lavf61.1.100
  Duration : 00:00:05.00, start : 0.000000, bitrate : 110 kb/s
  Stream #1:0[0x1](und) : Video : h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1080x1920 [SAR 4095:4096 DAR 36855:65536], 109 kb/s, SAR 14317:14320 DAR 128853:229120, 0.20 fps, 0.20 tbr, 16384 tbn (default)
    Metadata :
      handler_name : VideoHandler
      vendor_id : [0][0][0][0]
      encoder : Lavc61.3.100 libx264
Stream mapping :
  Stream #0:0 (h264) -> xfade
  Stream #1:0 (h264) -> xfade
  format:default -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
[libx264 @ 0x7f9f99fc87c0] using SAR=4095/4096
[libx264 @ 0x7f9f99fc87c0] using cpu capabilities : MMX2 SSE2Fast SSSE3 SSE4.2
[libx264 @ 0x7f9f99fc87c0] profile High, level 4.0, 4:2:0, 8-bit
[libx264 @ 0x7f9f99fc87c0] 264 - core 164 r3172 c1c9931 - H.264/MPEG-4 AVC codec - Copyleft 2003-2023 - 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=1 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 : isom
    minor_version : 512
    compatible_brands : isomiso2avc1mp41
    encoder : Lavf60.16.100
  Stream #0:0 : Video : h264 (avc1 / 0x31637661), yuv420p(tv, progressive), 1080x1920 [SAR 14317:14320 DAR 128853:229120], q=2-31, 0.20 fps, 16384 tbn
    Metadata :
      encoder : Lavc60.31.102 libx264
    Side data :
      cpb : bitrate max/min/avg : 0/0/0 buffer size : 0 vbv_delay : N/A
[out#0/mp4 @ 0x7f9f99fc74c0] video:72kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead : 1.190217%
frame=    2 fps=0.0 q=-1.0 Lsize=      73kB time=00:00:05.00 bitrate= 118.9kbits/s speed=45.5x    
[libx264 @ 0x7f9f99fc87c0] frame I:1     Avg QP:12.25  size : 72527
[libx264 @ 0x7f9f99fc87c0] frame P:1     Avg QP:13.77  size :   216
[libx264 @ 0x7f9f99fc87c0] mb I  I16..4 : 51.4% 34.9% 13.8%
[libx264 @ 0x7f9f99fc87c0] mb P  I16..4 :  0.0%  0.0%  0.0%  P16..4 :  0.8%  0.0%  0.0%  0.0%  0.0%    skip:99.2%
[libx264 @ 0x7f9f99fc87c0] 8x8 transform intra:34.9% inter:0.0%
[libx264 @ 0x7f9f99fc87c0] coded y,uvDC,uvAC intra : 9.2% 9.6% 6.9% inter : 0.0% 0.6% 0.0%
[libx264 @ 0x7f9f99fc87c0] i16 v,h,dc,p : 79% 20%  2%  0%
[libx264 @ 0x7f9f99fc87c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu :  1% 97%  2%  0%  0%  0%  0%  0%  0%
[libx264 @ 0x7f9f99fc87c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu : 36% 32% 10%  3%  3%  3%  4%  3%  4%
[libx264 @ 0x7f9f99fc87c0] i8c dc,h,v,p : 80% 15%  4%  0%
[libx264 @ 0x7f9f99fc87c0] Weighted P-Frames : Y:0.0% UV:0.0%
[libx264 @ 0x7f9f99fc87c0] kb/s:58.19


    


  • ffmpeg : corrupt audio in usage of avfoundation

    3 janvier 2016, par Andy

    I am trying to record my desktop screen (MacBook Pro (Retina, 15-inch, Mid 2014), OSX 10.10.5) with audio. First, I have to find the devices for recording, video:1 and audio:0 in my case.

    User@User-MacBook-Pro:~/test$ ffmpeg -hide_banner -f avfoundation -list_devices true -i ""
    
[AVFoundation input device @ 0x7ff19a422320] AVFoundation video devices:
    
[AVFoundation input device @ 0x7ff19a422320] [0] FaceTime HD Camera
    
[AVFoundation input device @ 0x7ff19a422320] [1] Capture screen 0
    
[AVFoundation input device @ 0x7ff4b9c22320] [2] Capture screen 1
    
[AVFoundation input device @ 0x7ff19a422320] AVFoundation audio devices:
    
[AVFoundation input device @ 0x7ff19a422320] [0] Soundflower (2ch)
    
[AVFoundation input device @ 0x7ff19a422320] [1] Built-in Microphone
    
[AVFoundation input device @ 0x7ff19a422320] [2] Soundflower (64ch)
    
: Input/output error

    Then I run to capture the screen :

    ffmpeg -f avfoundation -i "1:0" out_desktop.mkv

    and the audio of the output stutters terribly.
    But if I use the second external screen (which is connect via HDMI) :

    ffmpeg -f avfoundation -i "2:0" out_ext.mkv

    Then I have no audio problems.

    So, what could be the cause of this behaviour ? Somehow the video device "Capture screen 0" causes the audio stutter.

    Here are the full outputs of the two commands above, Screen 0 :

    User@User-MacBook-Pro:~/test$ ffmpeg -f avfoundation -i "1:0" out.mkv
    
ffmpeg version 2.8.4 Copyright (c) 2000-2015 the FFmpeg developers
    
  built with Apple LLVM version 7.0.2 (clang-700.1.81)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/2.8.4 --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-libvo-aacenc --enable-libxvid --enable-libfreetype --enable-libtheora --enable-libvorbis --enable-libvpx --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libass --enable-ffplay --enable-libspeex --enable-libschroedinger --enable-libfdk-aac --enable-libopus --enable-frei0r --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/1.5.2_1/include/openjpeg-1.5 --enable-nonfree --enable-vda
    
  libavutil      54. 31.100 / 54. 31.100
    
  libavcodec     56. 60.100 / 56. 60.100
    
  libavformat    56. 40.101 / 56. 40.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 40.101 /  5. 40.101
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.101 /  1.  2.101
    
  libpostproc    53.  3.100 / 53.  3.100
    
[avfoundation @ 0x7fca1200da00] Selected pixel format (yuv420p) is not supported by the input device.
    
[avfoundation @ 0x7fca1200da00] Supported pixel formats:
    
[avfoundation @ 0x7fca1200da00]   uyvy422
    
[avfoundation @ 0x7fca1200da00]   yuyv422
    
[avfoundation @ 0x7fca1200da00]   nv12
    
[avfoundation @ 0x7fca1200da00]   0rgb
    
[avfoundation @ 0x7fca1200da00]   bgr0
    
[avfoundation @ 0x7fca1200da00] Overriding selected pixel format to use uyvy422 instead.
    
[avfoundation @ 0x7fca1200da00] Stream #0: not enough frames to estimate rate; consider increasing probesize
    
Input #0, avfoundation, from '1:0':
    
  Duration: N/A, start: 11734.092500, bitrate: 2822 kb/s
    
    Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 2880x1800, 1000k tbr, 1000k tbn, 1000k tbc
    
    Stream #0:1: Audio: pcm_f32le, 44100 Hz, stereo, flt, 2822 kb/s
    
File 'out.mkv' already exists. Overwrite ? [y/N] y
    
No pixel format specified, yuv422p for H.264 encoding chosen.
    
Use -pix_fmt yuv420p for compatibility with outdated media players.
    
[libx264 @ 0x7fca1390e000] MB rate (20340000000) > level limit (2073600)
    
[libx264 @ 0x7fca1390e000] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    
[libx264 @ 0x7fca1390e000] profile High 4:2:2, level 5.2, 4:2:2 8-bit
    
[libx264 @ 0x7fca1390e000] 264 - core 148 r2601 a0cd7d3 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - 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, matroska, to 'out.mkv':
    
  Metadata:
    
    encoder         : Lavf56.40.101
    
    Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv422p, 2880x1800, q=-1--1, 1000k fps, 1k tbn, 1000k tbc
    
    Metadata:
    
      encoder         : Lavc56.60.100 libx264
    
    Stream #0:1: Audio: vorbis (libvorbis) (oV[0][0] / 0x566F), 44100 Hz, stereo, fltp
    
    Metadata:
    
      encoder         : Lavc56.60.100 libvorbis
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (pcm_f32le (native) -> vorbis (libvorbis))
    
Press [q] to stop, [?] for help
    
frame=  969 fps= 29 q=-1.0 Lsize=    6911kB time=00:00:34.80 bitrate=1626.8kbits/s    
    
video:6475kB audio:396kB subtitle:0kB other streams:0kB global headers:4kB muxing overhead: 0.591309%
    
[libx264 @ 0x7fca1390e000] frame I:4     Avg QP:15.77  size:1461092
    
[libx264 @ 0x7fca1390e000] frame P:246   Avg QP:16.00  size:  2608
    
[libx264 @ 0x7fca1390e000] frame B:719   Avg QP:13.91  size:   200
    
[libx264 @ 0x7fca1390e000] consecutive B-frames:  0.9%  0.4%  0.0% 98.7%
    
[libx264 @ 0x7fca1390e000] mb I  I16..4: 11.6% 43.3% 45.2%
    
[libx264 @ 0x7fca1390e000] mb P  I16..4:  0.0%  0.0%  0.1%  P16..4:  0.4%  0.0%  0.0%  0.0%  0.0%    skip:99.5%
    
[libx264 @ 0x7fca1390e000] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.2%  0.0%  0.0%  direct: 0.0%  skip:99.8%  L0:39.9% L1:60.0% BI: 0.1%
    
[libx264 @ 0x7fca1390e000] 8x8 transform intra:41.6% inter:38.8%
    
[libx264 @ 0x7fca1390e000] coded y,uvDC,uvAC intra: 76.9% 77.9% 75.5% inter: 0.0% 0.1% 0.0%
    
[libx264 @ 0x7fca1390e000] i16 v,h,dc,p: 51% 34% 11%  4%
    
[libx264 @ 0x7fca1390e000] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 17% 19%  7%  4%  3%  8%  5% 16%
    
[libx264 @ 0x7fca1390e000] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 24% 10%  7%  6%  5%  8%  7% 12%
    
[libx264 @ 0x7fca1390e000] i8c dc,h,v,p: 59% 14% 18%  9%
    
[libx264 @ 0x7fca1390e000] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x7fca1390e000] ref P L0: 71.5%  3.4% 13.0% 12.1%
    
[libx264 @ 0x7fca1390e000] ref B L0: 46.6% 52.3%  1.1%
    
[libx264 @ 0x7fca1390e000] ref B L1: 95.1%  4.9%
    
[libx264 @ 0x7fca1390e000] kb/s:1525.48

    and Screen 1 :

    User@User-MacBook-Pro:~/test$ ffmpeg -f avfoundation -i "2:0" out.mkv
    
ffmpeg version 2.8.4 Copyright (c) 2000-2015 the FFmpeg developers
    
  built with Apple LLVM version 7.0.2 (clang-700.1.81)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/2.8.4 --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-libvo-aacenc --enable-libxvid --enable-libfreetype --enable-libtheora --enable-libvorbis --enable-libvpx --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libass --enable-ffplay --enable-libspeex --enable-libschroedinger --enable-libfdk-aac --enable-libopus --enable-frei0r --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/1.5.2_1/include/openjpeg-1.5 --enable-nonfree --enable-vda
    
  libavutil      54. 31.100 / 54. 31.100
    
  libavcodec     56. 60.100 / 56. 60.100
    
  libavformat    56. 40.101 / 56. 40.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 40.101 /  5. 40.101
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.101 /  1.  2.101
    
  libpostproc    53.  3.100 / 53.  3.100
    
[avfoundation @ 0x7fc2e900da00] Selected pixel format (yuv420p) is not supported by the input device.
    
[avfoundation @ 0x7fc2e900da00] Supported pixel formats:
    
[avfoundation @ 0x7fc2e900da00]   uyvy422
    
[avfoundation @ 0x7fc2e900da00]   yuyv422
    
[avfoundation @ 0x7fc2e900da00]   nv12
    
[avfoundation @ 0x7fc2e900da00]   0rgb
    
[avfoundation @ 0x7fc2e900da00]   bgr0
    
[avfoundation @ 0x7fc2e900da00] Overriding selected pixel format to use uyvy422 instead.
    
[avfoundation @ 0x7fc2e900da00] Stream #0: not enough frames to estimate rate; consider increasing probesize
    
Input #0, avfoundation, from '2:0':
    
  Duration: N/A, start: 11809.126333, bitrate: 2822 kb/s
    
    Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 2560x1080, 1000k tbr, 1000k tbn, 1000k tbc
    
    Stream #0:1: Audio: pcm_f32le, 44100 Hz, stereo, flt, 2822 kb/s
    
File 'out.mkv' already exists. Overwrite ? [y/N] y
    
No pixel format specified, yuv422p for H.264 encoding chosen.
    
Use -pix_fmt yuv420p for compatibility with outdated media players.
    
[libx264 @ 0x7fc2ea82ac00] MB rate (10880000000) > level limit (2073600)
    
[libx264 @ 0x7fc2ea82ac00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    
[libx264 @ 0x7fc2ea82ac00] profile High 4:2:2, level 5.2, 4:2:2 8-bit
    
[libx264 @ 0x7fc2ea82ac00] 264 - core 148 r2601 a0cd7d3 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - 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, matroska, to 'out.mkv':
    
  Metadata:
    
    encoder         : Lavf56.40.101
    
    Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv422p, 2560x1080, q=-1--1, 1000k fps, 1k tbn, 1000k tbc
    
    Metadata:
    
      encoder         : Lavc56.60.100 libx264
    
    Stream #0:1: Audio: vorbis (libvorbis) (oV[0][0] / 0x566F), 44100 Hz, stereo, fltp
    
    Metadata:
    
      encoder         : Lavc56.60.100 libvorbis
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (pcm_f32le (native) -> vorbis (libvorbis))
    
Press [q] to stop, [?] for help
    
frame=  755 fps= 30 q=-1.0 Lsize=    1025kB time=00:00:26.65 bitrate= 315.1kbits/s    
    
video:680kB audio:326kB subtitle:0kB other streams:0kB global headers:4kB muxing overhead: 2.003084%
    
[libx264 @ 0x7fc2ea82ac00] frame I:4     Avg QP:13.22  size:145661
    
[libx264 @ 0x7fc2ea82ac00] frame P:191   Avg QP:19.87  size:   250
    
[libx264 @ 0x7fc2ea82ac00] frame B:560   Avg QP:28.31  size:   116
    
[libx264 @ 0x7fc2ea82ac00] consecutive B-frames:  1.1%  0.0%  0.4% 98.5%
    
[libx264 @ 0x7fc2ea82ac00] mb I  I16..4: 54.5% 29.2% 16.2%
    
[libx264 @ 0x7fc2ea82ac00] mb P  I16..4:  0.2%  0.1%  0.0%  P16..4:  0.1%  0.0%  0.0%  0.0%  0.0%    skip:99.6%
    
[libx264 @ 0x7fc2ea82ac00] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.3%  0.0%  0.0%  direct: 0.0%  skip:99.7%  L0:69.2% L1:30.8% BI: 0.0%
    
[libx264 @ 0x7fc2ea82ac00] 8x8 transform intra:31.7% inter:13.1%
    
[libx264 @ 0x7fc2ea82ac00] coded y,uvDC,uvAC intra: 10.9% 8.8% 8.5% inter: 0.0% 0.0% 0.0%
    
[libx264 @ 0x7fc2ea82ac00] i16 v,h,dc,p: 69% 31%  0%  0%
    
[libx264 @ 0x7fc2ea82ac00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27%  5% 67%  0%  0%  0%  0%  0%  0%
    
[libx264 @ 0x7fc2ea82ac00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 38% 25% 14%  3%  3%  4%  5%  4%  5%
    
[libx264 @ 0x7fc2ea82ac00] i8c dc,h,v,p: 92%  3%  4%  0%
    
[libx264 @ 0x7fc2ea82ac00] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x7fc2ea82ac00] ref P L0: 76.3%  1.7% 16.8%  5.2%
    
[libx264 @ 0x7fc2ea82ac00] ref B L0: 38.9% 56.9%  4.2%
    
[libx264 @ 0x7fc2ea82ac00] ref B L1: 97.3%  2.7%
    
[libx264 @ 0x7fc2ea82ac00] kb/s:208.84

    EDIT

    The main differences between the two (lengthy) outputs above via

    wdiff -n output1 output2 |colordiff

    is the resolution ([-2880x1800,-] {+2560x1080,+}) and the resulting MB rate ([-(20340000000)-] {+(10880000000)+}). So, what could increase the performance of ffmpeg ?

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