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Websites made with MediaSPIP

2 mai 2011, par kent1

This page lists some websites based on MediaSPIP.
Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs

12 avril 2011, par kent1

La manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.
Le profil des utilisateurs

12 avril 2011, par kent1

Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 36

Sur d’autres sites (6587)

convert exr filesequence with ffmpeg and x264 [closed]

29 novembre 2012, par user1863947

When i convert a exr sequence into quicktime mov file using ffmpeg and x264 codec it codes the video but in quicktime player and windows media player its just black ! but when i open it up with vlc i can see the image and it looks fine. When i try the same thing with a jpg sequence instead of exr it works perfect ! does anyone have an idea what that could be ?

here is my ffmpeg code :

ffmpeg -y -i C:/seq_v001.%04d.exr -c:v libx264 -preset slow -crf 17 C:/out.mov

Here is the console output :

ffmpeg version N-47062-g26c531c Copyright (c) 2000-2012 the FFmpeg developers

  built on Nov 25 2012 12:25:21 with gcc 4.7.2 (GCC)

  configuration: --enable-gpl --enable-version3 --disable-pthreads --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib

  libavutil      52.  9.100 / 52.  9.100

  libavcodec     54. 77.100 / 54. 77.100

  libavformat    54. 37.100 / 54. 37.100

  libavdevice    54.  3.100 / 54.  3.100

  libavfilter     3. 23.102 /  3. 23.102

  libswscale      2.  1.102 /  2.  1.102

  libswresample   0. 17.101 /  0. 17.101

  libpostproc    52.  2.100 / 52.  2.100

[image2 @ 000000000025e4c0] Stream #0: not enough frames to estimate rate; consider increasing probesize

Input #0, image2, from &#39;C:/seq_v001.%04d.exr&#39;:

  Duration: 00:00:04.00, start: 0.000000, bitrate: N/A

    Stream #0:0: Video: exr, rgb48le, 1920x1080 [SAR 1:1 DAR 16:9], 25 tbr, 25 tbn, 25 tbc

[libx264 @ 0000000001fd0ea0] using SAR=1/1

[libx264 @ 0000000001fd0ea0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2

[libx264 @ 0000000001fd0ea0] profile High 4:4:4 Predictive, level 5.0, 4:4:4 8-bit

[libx264 @ 0000000001fd0ea0] 264 - core 128 r2216 198a7ea - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=5 deblock=1:0:0 analyse=0x3:0x113 me=umh subme=8 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=4 threads=18 lookahead_threads=3 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=50 rc=crf mbtree=1 crf=17.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00

Output #0, mov, to &#39;C:/out.mov&#39;:

  Metadata:

    encoder         : Lavf54.37.100

    Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv444p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 12800 tbn, 25 tbc

Stream mapping:

  Stream #0:0 -> #0:0 (exr -> libx264)

Press [q] to stop, [?] for help

[exr @ 0000000001fddea0] Found more than one compression attribute

[exr @ 0000000001fdda40] Found more than one compression attribute

[exr @ 0000000001fde2e0] Found more than one compression attribute

[exr @ 0000000001fde740] Found more than one compression attribute

[exr @ 0000000001fdeb80] Found more than one compression attribute

[exr @ 0000000001fdefe0] Found more than one compression attribute

frame=    7 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fdf880] Found more than one compression attribute

[exr @ 0000000001fdfcc0] Found more than one compression attribute

[exr @ 0000000001fe0120] Found more than one compression attribute

[exr @ 0000000001fe0560] Found more than one compression attribute

[exr @ 0000000001fe09c0] Found more than one compression attribute

[exr @ 0000000001fe0e00] Found more than one compression attribute

[exr @ 0000000001fddea0] Found more than one compression attribute

[exr @ 0000000001fdda40] Found more than one compression attribute

[exr @ 0000000001fde2e0] Found more than one compression attribute

frame=   17 fps= 16 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fdeb80] Found more than one compression attribute

[exr @ 0000000001fdefe0] Found more than one compression attribute

[exr @ 0000000001fdf420] Found more than one compression attribute

[exr @ 0000000001fdf880] Found more than one compression attribute

[exr @ 0000000001fdfcc0] Found more than one compression attribute

[exr @ 0000000001fe0120] Found more than one compression attribute

[exr @ 0000000001fe0560] Found more than one compression attribute

[exr @ 0000000001fe09c0] Found more than one compression attribute

[exr @ 0000000001fe0e00] Found more than one compression attribute

[exr @ 0000000001fddea0] Found more than one compression attribute

frame=   28 fps= 18 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fde2e0] Found more than one compression attribute

[exr @ 0000000001fde740] Found more than one compression attribute

[exr @ 0000000001fdeb80] Found more than one compression attribute

[exr @ 0000000001fdefe0] Found more than one compression attribute

[exr @ 0000000001fdf420] Found more than one compression attribute

[exr @ 0000000001fdf880] Found more than one compression attribute

[exr @ 0000000001fdfcc0] Found more than one compression attribute

[exr @ 0000000001fe0120] Found more than one compression attribute

[exr @ 0000000001fe0560] Found more than one compression attribute

[exr @ 0000000001fe09c0] Found more than one compression attribute

frame=   39 fps= 19 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fddea0] Found more than one compression attribute

[exr @ 0000000001fdda40] Found more than one compression attribute

[exr @ 0000000001fde2e0] Found more than one compression attribute

[exr @ 0000000001fde740] Found more than one compression attribute

[exr @ 0000000001fdeb80] Found more than one compression attribute

[exr @ 0000000001fdefe0] Found more than one compression attribute

[exr @ 0000000001fdf420] Found more than one compression attribute

[exr @ 0000000001fdf880] Found more than one compression attribute

[exr @ 0000000001fdfcc0] Found more than one compression attribute

[exr @ 0000000001fe0120] Found more than one compression attribute

frame=   50 fps= 19 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fe09c0] Found more than one compression attribute

[exr @ 0000000001fe0e00] Found more than one compression attribute

[exr @ 0000000001fddea0] Found more than one compression attribute

[exr @ 0000000001fdda40] Found more than one compression attribute

[exr @ 0000000001fde2e0] Found more than one compression attribute

[exr @ 0000000001fde740] Found more than one compression attribute

frame=   57 fps= 16 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fdefe0] Found more than one compression attribute

[exr @ 0000000001fdf420] Found more than one compression attribute

[exr @ 0000000001fdf880] Found more than one compression attribute

[exr @ 0000000001fdfcc0] Found more than one compression attribute

[exr @ 0000000001fe0120] Found more than one compression attribute

[exr @ 0000000001fe0560] Found more than one compression attribute

[exr @ 0000000001fe09c0] Found more than one compression attribute

[exr @ 0000000001fe0e00] Found more than one compression attribute

frame=   66 fps= 17 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fdda40] Found more than one compression attribute

[exr @ 0000000001fde2e0] Found more than one compression attribute

[exr @ 0000000001fde740] Found more than one compression attribute

[exr @ 0000000001fdeb80] Found more than one compression attribute

[exr @ 0000000001fdefe0] Found more than one compression attribute

[exr @ 0000000001fdf420] Found more than one compression attribute

[exr @ 0000000001fdf880] Found more than one compression attribute

frame=   74 fps= 16 q=22.0 size=     255kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fe0120] Found more than one compression attribute

[exr @ 0000000001fe0560] Found more than one compression attribute

[exr @ 0000000001fe09c0] Found more than one compression attribute

[exr @ 0000000001fe0e00] Found more than one compression attribute

frame=   79 fps= 16 q=22.0 size=     467kB time=00:00:00.20 bitrate=19134.5kbits/s    

Found more than one compression attribute

[exr @ 0000000001fdda40] Found more than one compression attribute

[exr @ 0000000001fde2e0] Found more than one compression attribute

[exr @ 0000000001fde740] Found more than one compression attribute

frame=   83 fps= 15 q=22.0 size=     652kB time=00:00:00.36 bitrate=14829.5kbits/s    

Found more than one compression attribute

[exr @ 0000000001fdefe0] Found more than one compression attribute

[exr @ 0000000001fdf420] Found more than one compression attribute

[exr @ 0000000001fdf880] Found more than one compression attribute

[exr @ 0000000001fdfcc0] Found more than one compression attribute

frame=  100 fps= 15 q=22.0 size=    1505kB time=-577014:-32:-22.-77 bitrate=  -0.0kbits/s    

frame=  100 fps=9.6 q=-1.0 Lsize=    3831kB time=00:00:03.92 bitrate=8006.7kbits/s    



video:3829kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.050698%

[libx264 @ 0000000001fd0ea0] frame I:1     Avg QP:18.35  size:168478

[libx264 @ 0000000001fd0ea0] frame P:31    Avg QP:16.10  size: 83540

[libx264 @ 0000000001fd0ea0] frame B:68    Avg QP:20.34  size: 17093

[libx264 @ 0000000001fd0ea0] consecutive B-frames:  7.0%  4.0%  9.0% 80.0%

[libx264 @ 0000000001fd0ea0] mb I  I16..4: 22.6% 67.9%  9.4%

[libx264 @ 0000000001fd0ea0] mb P  I16..4:  1.3%  7.3%  0.6%  P16..4: 20.3% 10.1%  5.7%  0.0%  0.0%    skip:54.6%

[libx264 @ 0000000001fd0ea0] mb B  I16..4:  0.2%  0.8%  0.1%  B16..8: 30.8%  4.8%  1.2%  direct: 1.5%  skip:60.6%  L0:46.0% L1:48.6% BI: 5.4%

[libx264 @ 0000000001fd0ea0] 8x8 transform intra:76.0% inter:78.8%

[libx264 @ 0000000001fd0ea0] direct mvs  spatial:85.3% temporal:14.7%

[libx264 @ 0000000001fd0ea0] coded y,u,v intra: 87.8% 56.3% 53.3% inter: 13.0% 6.1% 5.0%

[libx264 @ 0000000001fd0ea0] i16 v,h,dc,p: 12%  9% 24% 55%

[libx264 @ 0000000001fd0ea0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10%  8% 32%  7% 11%  8%  9%  7%  9%

[libx264 @ 0000000001fd0ea0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12%  8%  5%  8% 23% 14% 11%  9% 11%

[libx264 @ 0000000001fd0ea0] Weighted P-Frames: Y:0.0% UV:0.0%

[libx264 @ 0000000001fd0ea0] ref P L0: 40.6%  9.5% 25.3% 13.3%  9.3%  2.1%

[libx264 @ 0000000001fd0ea0] ref B L0: 64.9% 24.5%  8.7%  1.9%

[libx264 @ 0000000001fd0ea0] ref B L1: 89.8% 10.2%

[libx264 @ 0000000001fd0ea0] kb/s:7841.10

convert exr filesequence with ffmpeg and x264 [closed]

29 novembre 2012, par user1863947

here is my ffmpeg code :

ffmpeg -y -i C:/seq_v001.%04d.exr -c:v libx264 -preset slow -crf 17 C:/out.mov

Here is the console output :

ffmpeg version N-47062-g26c531c Copyright (c) 2000-2012 the FFmpeg developers

  built on Nov 25 2012 12:25:21 with gcc 4.7.2 (GCC)

  configuration: --enable-gpl --enable-version3 --disable-pthreads --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib

  libavutil      52.  9.100 / 52.  9.100

  libavcodec     54. 77.100 / 54. 77.100

  libavformat    54. 37.100 / 54. 37.100

  libavdevice    54.  3.100 / 54.  3.100

  libavfilter     3. 23.102 /  3. 23.102

  libswscale      2.  1.102 /  2.  1.102

  libswresample   0. 17.101 /  0. 17.101

  libpostproc    52.  2.100 / 52.  2.100

[image2 @ 000000000025e4c0] Stream #0: not enough frames to estimate rate; consider increasing probesize

Input #0, image2, from &#39;C:/seq_v001.%04d.exr&#39;:

  Duration: 00:00:04.00, start: 0.000000, bitrate: N/A

    Stream #0:0: Video: exr, rgb48le, 1920x1080 [SAR 1:1 DAR 16:9], 25 tbr, 25 tbn, 25 tbc

[libx264 @ 0000000001fd0ea0] using SAR=1/1

[libx264 @ 0000000001fd0ea0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2

[libx264 @ 0000000001fd0ea0] profile High 4:4:4 Predictive, level 5.0, 4:4:4 8-bit

[libx264 @ 0000000001fd0ea0] 264 - core 128 r2216 198a7ea - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=5 deblock=1:0:0 analyse=0x3:0x113 me=umh subme=8 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=4 threads=18 lookahead_threads=3 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=50 rc=crf mbtree=1 crf=17.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00

Output #0, mov, to &#39;C:/out.mov&#39;:

  Metadata:

    encoder         : Lavf54.37.100

    Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv444p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 12800 tbn, 25 tbc

Stream mapping:

  Stream #0:0 -> #0:0 (exr -> libx264)

Press [q] to stop, [?] for help

[exr @ 0000000001fddea0] Found more than one compression attribute

[exr @ 0000000001fdda40] Found more than one compression attribute

[exr @ 0000000001fde2e0] Found more than one compression attribute

[exr @ 0000000001fde740] Found more than one compression attribute

[exr @ 0000000001fdeb80] Found more than one compression attribute

[exr @ 0000000001fdefe0] Found more than one compression attribute

frame=    7 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fdf880] Found more than one compression attribute

[exr @ 0000000001fdfcc0] Found more than one compression attribute

[exr @ 0000000001fe0120] Found more than one compression attribute

[exr @ 0000000001fe0560] Found more than one compression attribute

[exr @ 0000000001fe09c0] Found more than one compression attribute

[exr @ 0000000001fe0e00] Found more than one compression attribute

[exr @ 0000000001fddea0] Found more than one compression attribute

[exr @ 0000000001fdda40] Found more than one compression attribute

[exr @ 0000000001fde2e0] Found more than one compression attribute

frame=   17 fps= 16 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fdeb80] Found more than one compression attribute

[exr @ 0000000001fdefe0] Found more than one compression attribute

[exr @ 0000000001fdf420] Found more than one compression attribute

[exr @ 0000000001fdf880] Found more than one compression attribute

[exr @ 0000000001fdfcc0] Found more than one compression attribute

[exr @ 0000000001fe0120] Found more than one compression attribute

[exr @ 0000000001fe0560] Found more than one compression attribute

[exr @ 0000000001fe09c0] Found more than one compression attribute

[exr @ 0000000001fe0e00] Found more than one compression attribute

[exr @ 0000000001fddea0] Found more than one compression attribute

frame=   28 fps= 18 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fde2e0] Found more than one compression attribute

[exr @ 0000000001fde740] Found more than one compression attribute

[exr @ 0000000001fdeb80] Found more than one compression attribute

[exr @ 0000000001fdefe0] Found more than one compression attribute

[exr @ 0000000001fdf420] Found more than one compression attribute

[exr @ 0000000001fdf880] Found more than one compression attribute

[exr @ 0000000001fdfcc0] Found more than one compression attribute

[exr @ 0000000001fe0120] Found more than one compression attribute

[exr @ 0000000001fe0560] Found more than one compression attribute

[exr @ 0000000001fe09c0] Found more than one compression attribute

frame=   39 fps= 19 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fddea0] Found more than one compression attribute

[exr @ 0000000001fdda40] Found more than one compression attribute

[exr @ 0000000001fde2e0] Found more than one compression attribute

[exr @ 0000000001fde740] Found more than one compression attribute

[exr @ 0000000001fdeb80] Found more than one compression attribute

[exr @ 0000000001fdefe0] Found more than one compression attribute

[exr @ 0000000001fdf420] Found more than one compression attribute

[exr @ 0000000001fdf880] Found more than one compression attribute

[exr @ 0000000001fdfcc0] Found more than one compression attribute

[exr @ 0000000001fe0120] Found more than one compression attribute

frame=   50 fps= 19 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fe09c0] Found more than one compression attribute

[exr @ 0000000001fe0e00] Found more than one compression attribute

[exr @ 0000000001fddea0] Found more than one compression attribute

[exr @ 0000000001fdda40] Found more than one compression attribute

[exr @ 0000000001fde2e0] Found more than one compression attribute

[exr @ 0000000001fde740] Found more than one compression attribute

frame=   57 fps= 16 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fdefe0] Found more than one compression attribute

[exr @ 0000000001fdf420] Found more than one compression attribute

[exr @ 0000000001fdf880] Found more than one compression attribute

[exr @ 0000000001fdfcc0] Found more than one compression attribute

[exr @ 0000000001fe0120] Found more than one compression attribute

[exr @ 0000000001fe0560] Found more than one compression attribute

[exr @ 0000000001fe09c0] Found more than one compression attribute

[exr @ 0000000001fe0e00] Found more than one compression attribute

frame=   66 fps= 17 q=0.0 size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fdda40] Found more than one compression attribute

[exr @ 0000000001fde2e0] Found more than one compression attribute

[exr @ 0000000001fde740] Found more than one compression attribute

[exr @ 0000000001fdeb80] Found more than one compression attribute

[exr @ 0000000001fdefe0] Found more than one compression attribute

[exr @ 0000000001fdf420] Found more than one compression attribute

[exr @ 0000000001fdf880] Found more than one compression attribute

frame=   74 fps= 16 q=22.0 size=     255kB time=00:00:00.00 bitrate=   0.0kbits/s    

Found more than one compression attribute

[exr @ 0000000001fe0120] Found more than one compression attribute

[exr @ 0000000001fe0560] Found more than one compression attribute

[exr @ 0000000001fe09c0] Found more than one compression attribute

[exr @ 0000000001fe0e00] Found more than one compression attribute

frame=   79 fps= 16 q=22.0 size=     467kB time=00:00:00.20 bitrate=19134.5kbits/s    

Found more than one compression attribute

[exr @ 0000000001fdda40] Found more than one compression attribute

[exr @ 0000000001fde2e0] Found more than one compression attribute

[exr @ 0000000001fde740] Found more than one compression attribute

frame=   83 fps= 15 q=22.0 size=     652kB time=00:00:00.36 bitrate=14829.5kbits/s    

Found more than one compression attribute

[exr @ 0000000001fdefe0] Found more than one compression attribute

[exr @ 0000000001fdf420] Found more than one compression attribute

[exr @ 0000000001fdf880] Found more than one compression attribute

[exr @ 0000000001fdfcc0] Found more than one compression attribute

frame=  100 fps= 15 q=22.0 size=    1505kB time=-577014:-32:-22.-77 bitrate=  -0.0kbits/s    

frame=  100 fps=9.6 q=-1.0 Lsize=    3831kB time=00:00:03.92 bitrate=8006.7kbits/s    



video:3829kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.050698%

[libx264 @ 0000000001fd0ea0] frame I:1     Avg QP:18.35  size:168478

[libx264 @ 0000000001fd0ea0] frame P:31    Avg QP:16.10  size: 83540

[libx264 @ 0000000001fd0ea0] frame B:68    Avg QP:20.34  size: 17093

[libx264 @ 0000000001fd0ea0] consecutive B-frames:  7.0%  4.0%  9.0% 80.0%

[libx264 @ 0000000001fd0ea0] mb I  I16..4: 22.6% 67.9%  9.4%

[libx264 @ 0000000001fd0ea0] mb P  I16..4:  1.3%  7.3%  0.6%  P16..4: 20.3% 10.1%  5.7%  0.0%  0.0%    skip:54.6%

[libx264 @ 0000000001fd0ea0] mb B  I16..4:  0.2%  0.8%  0.1%  B16..8: 30.8%  4.8%  1.2%  direct: 1.5%  skip:60.6%  L0:46.0% L1:48.6% BI: 5.4%

[libx264 @ 0000000001fd0ea0] 8x8 transform intra:76.0% inter:78.8%

[libx264 @ 0000000001fd0ea0] direct mvs  spatial:85.3% temporal:14.7%

[libx264 @ 0000000001fd0ea0] coded y,u,v intra: 87.8% 56.3% 53.3% inter: 13.0% 6.1% 5.0%

[libx264 @ 0000000001fd0ea0] i16 v,h,dc,p: 12%  9% 24% 55%

[libx264 @ 0000000001fd0ea0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10%  8% 32%  7% 11%  8%  9%  7%  9%

[libx264 @ 0000000001fd0ea0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12%  8%  5%  8% 23% 14% 11%  9% 11%

[libx264 @ 0000000001fd0ea0] Weighted P-Frames: Y:0.0% UV:0.0%

[libx264 @ 0000000001fd0ea0] ref P L0: 40.6%  9.5% 25.3% 13.3%  9.3%  2.1%

[libx264 @ 0000000001fd0ea0] ref B L0: 64.9% 24.5%  8.7%  1.9%

[libx264 @ 0000000001fd0ea0] ref B L1: 89.8% 10.2%

[libx264 @ 0000000001fd0ea0] kb/s:7841.10

Converting from FLV to MP4 using ffmpeg

14 juillet 2016, par Brad

I have a library of several thousand flv files which I need to convert to mp4. I’m trying to use ffmpeg to do so but I’m running into some issues.

Primarily :

1) I can’t switch from FLV to MP4 without re-encoding. If I do I get a message from ffmpeg saying "Could not find tag for codec flv1 in stream #0, codec not currently supported in container"

2) If I re-encode the videos, the resultant videos are lower quality (I see artifacting in VLC) AND larger. For example one video went from 2.5MB to 4.3MB (almost double in size)

Given number two you may be asking yourself - why convert then ?

The answer is I need to stream these to mobile devices (phones/tablets etc) and flv isn’t supported. So I need to convert the files but I can’t tolerate more than a minimum change in quality, and preferably zero to no increase in size.

Here’s the ffmpeg command I’m running :

ffmpeg -i $_.FullName -movflags faststart -profile:v baseline -level 3.0 "$($_.BaseName).mp4"

(Note that I’m running ffmpeg from powershell so :

$_.FullName = the original file name 

"$($_.BaseName).mp4" = the original file name with mp4 extension)

Can any FFMPEG guru’s help me to understand what I’m doing wrong ? Is there some set of parameters I can use to make this conversion result in less loss of quality and similar size ?

Note I’ve also tried "-c:v libx264 -preset veryslow -crf 23 -c:a copy". Using present "veryslow" doesn’t result in any appreciable difference.

UPDATE
I’m using the following options :

ffmpeg -i $_.FullName -c:v libx264 -preset veryslow -crf 19 -c:a copy "$($_.BaseName).mp4"

Here’s the full output :

    ffmpeg version 2.8.4 Copyright (c) 2000-2015 the FFmpeg developers

      built with gcc 5.2.0 (GCC)

      configuration : —enable-gpl —enable-version3 —disable-w32threads —enable-avisynth —enable-bzlib —enable-fontconfi

    g —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-libm

    p3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenjpeg —enable-libopus —enable-librtmp —en

    able-libschroedinger —enable-libsoxr —enable-libspeex —enable-libtheora —enable-libtwolame —enable-libvidstab —ena

    ble-libvo-aacenc —enable-libvo-amrwbenc —enable-libvorbis —enable-libvpx —enable-libwavpack —enable-libwebp —enabl

    e-libx264 —enable-libx265 —enable-libxavs —enable-libxvid —enable-lzma —enable-decklink —enable-zlib

      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

      libswscale      3.  1.101 /  3.  1.101

      libswresample   1.  2.101 /  1.  2.101

      libpostproc    53.  3.100 / 53.  3.100

    Input #0, flv, from ’C :\Users\brad\Desktop\ffmpeg\Originals\1019800-1278575542468.flv’ :

      Metadata :

        canSeekToEnd : false

        createdby : FMS 3.5

        creationdate : Thu Jul 08 03:52:25 2010

      Duration : 00:00:56.94, start : 0.000000, bitrate : 360 kb/s

        Stream #0:0 : Video : flv1, yuv420p, 320x240, 1k tbr, 1k tbn, 1k tbc

        [libx264 @ 02cf7300] using cpu capabilities : MMX2 SSE2Fast SSSE3 SSE4.2

        [libx264 @ 02cf7300] profile High, level 4.2

        [libx264 @ 02cf7300] 264 - core 148 r2638 7599210 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.or

    g/x264.html - options : cabac=1 ref=16 deblock=1:0:0 analyse=0x3:0x133 me=umh subme=10 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=7 lookahead_th

    reads=1 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=25 scenecut=40 intra_refresh=0 rc_lookahead=60

    rc=crf mbtree=1 crf=19.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00

    Output #0, mp4, to ’1019800-1278575542468.mp4’ :

      Metadata :

        canSeekToEnd : false

        createdby : FMS 3.5

        creationdate : Thu Jul 08 03:52:25 2010

        encoder : Lavf56.40.101

        Stream #0:0 : Video : h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 320x240, q=-1—1, 1k fps, 16k tbn, 1k tbc

        Metadata :

          encoder : Lavc56.60.100 libx264

    Stream mapping :

      Stream #0:0 -> #0:0 (flv1 (flv) -> h264 (libx264))

    Press [q] to stop, [?] for help

    frame=57117 fps=199 q=-1.0 Lsize=    5611kB time=00:00:57.11 bitrate= 804.8kbits/s dup=56685 drop=0

    video:5184kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead : 8.229259%

    [libx264 @ 02cf7300] frame I:230   Avg QP:15.92  size :  8828

    [libx264 @ 02cf7300] frame P:6399  Avg QP:17.19  size :   385

    [libx264 @ 02cf7300] frame B:50488 Avg QP:27.13  size :    16

    [libx264 @ 02cf7300] consecutive B-frames :  0.4%  0.0%  0.0%  0.0%  0.0%  2.3%  0.0%  0.0% 97.2%

    [libx264 @ 02cf7300] mb I  I16..4 :  2.9% 92.6%  4.5%

    [libx264 @ 02cf7300] mb P  I16..4 :  0.1%  2.0%  0.2%  P16..4 :  2.4%  1.2%  1.1%  0.1%  0.0%    skip:92.9%

    [libx264 @ 02cf7300] mb B  I16..4 :  0.0%  0.0%  0.0%  B16..8 :  2.6%  0.0%  0.0%  direct : 0.0%  skip:97.3%  L0:45.0% L1:5

4.9% BI : 0.0%

    [libx264 @ 02cf7300] 8x8 transform intra:90.7% inter:76.5%

    [libx264 @ 02cf7300] direct mvs  spatial:75.2% temporal:24.8%

    [libx264 @ 02cf7300] coded y,uvDC,uvAC intra : 94.4% 96.8% 64.8% inter : 0.3% 0.4% 0.1%

    [libx264 @ 02cf7300] i16 v,h,dc,p : 16% 25% 18% 41%

    [libx264 @ 02cf7300] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 19% 28% 30%  4%  3%  3%  4%  4%  5%

    [libx264 @ 02cf7300] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu : 18% 22%  9% 11%  8%  7% 10%  8%  7%

    [libx264 @ 02cf7300] i8c dc,h,v,p : 30% 34% 23% 13%

    [libx264 @ 02cf7300] Weighted P-Frames : Y:0.1% UV:0.1%

    [libx264 @ 02cf7300] ref P L0 : 74.1% 19.7%  4.5%  0.6%  0.1%  0.2%  0.0%  0.1%  0.0%  0.1%  0.0%  0.2%  0.0%  0.2%  0.0%

  0.1%

    [libx264 @ 02cf7300] ref B L0 : 95.5%  1.6%  0.7%  0.5%  0.4%  0.3%  0.3%  0.2%  0.1%  0.1%  0.1%  0.1%  0.1%  0.0%  0.0%
    [libx264 @ 02cf7300] ref B L1 : 84.5% 15.5%

    [libx264 @ 02cf7300] kb/s:743.46

Original Video Size: 2.44 MB

New Video Size: 5.6 MB

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Converting from FLV to MP4 using ffmpeg

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