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Autres articles (63)

Demande de création d’un canal

12 mars 2010, par kent1

En fonction de la configuration de la plateforme, l’utilisateur peu avoir à sa disposition deux méthodes différentes de demande de création de canal. La première est au moment de son inscription, la seconde, après son inscription en remplissant un formulaire de demande.
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1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 21

Sur d’autres sites (14461)

building ffmpeg with openh264 configure results in h264 decoder DISabled ?

7 juillet 2018, par hal497

I’ve got openh264, built from source, installed locally,

pkg-config --libs --cflags openh264

        -I/usr/local/include -L/usr/local/lib64 -lopenh264

Building ffmpeg from src

cd ffmpeg-git

    git checkout origin/release/4.0

    git clean -xfd

    git reset --hard

    git pull

    git log | head

        commit b5106c5aa2ddd00f0c0452432ba8e683a9a06b6f

        Author: Aman Gupta &lt;aman@tmm1.net&gt;

        Date:   Mon Jun 11 00:43:31 2018 -0700



            avformat/mpegts: parse large PMTs with multiple tables



            In 9152c1e4955, the mpegts parser was taught how to parse

            PMT sections which contained multiple tables. That commit

            fixed parsing of PMT packets from some cable providers,

            which included a special SCTE table (0xc0) before the

with a simple config to ENABLE libopenh264 use

./configure --enable-ffmpeg \

--prefix=/usr/local --libdir=/usr/local/lib64 \

--enable-shared --disable-static --enable-rpath \

--enable-libopenh264 --disable-libx264

make

checking the build

ldd ./ffmpeg | egrep "h264|x264"

    (empty)

there are mixed references to libopenh264 and libx264 (despite my config),

for l in lib*/*so; do echo $l; ldd $l | egrep "264"; done

    libavcodec/libavcodec.so

            libopenh264.so.4 => /usr/local/lib64/libopenh264.so.4 (0x00007f82dd74d000)

    libavdevice/libavdevice.so

            libx264.so.152 => /usr/lib64/libx264.so.152 (0x00007f0575c6f000)

    libavfilter/libavfilter.so

            libx264.so.152 => /usr/lib64/libx264.so.152 (0x00007f85bae41000)

    libavformat/libavformat.so

            libx264.so.152 => /usr/lib64/libx264.so.152 (0x00007ff105701000)

    libavutil/libavutil.so

    libswresample/libswresample.so

    libswscale/libswscale.so

and

./ffmpeg -decoders | grep h264

shows h264 as a disabled decoder, (... —enable-libx264 —disable-libopenh264 ...)

ffmpeg version n4.0.1-5-gb5106c5aa2 Copyright (c) 2000-2018 the FFmpeg developers

  built with gcc 8 (SUSE Linux)

  configuration: --enable-ffmpeg --prefix=/usr/local --libdir=/usr/local/lib64 --enable-shared --disable-static --enable-optimizations --enable-rpath --disable-doc --enable-nonfree --enable-libopenh264 --disable-libx264

  WARNING: library configuration mismatch

  avutil      configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --extra-cflags='-grecord-gcc-switches -g -fPIC -I/usr/include/gsm' --disable-static --enable-shared --disable-stripping --enable-optimizations --disable-debug --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-devices --disable-htmlpages --disable-doc --enable-gpl --enable-nonfree --enable-version3 --enable-libx264 --disable-libopenh264 --enable-libfdk-aac --enable-libmp3lame --enable-runtime-cpudetect --enable-postproc --enable-bzlib --enable-swresample --disable-avresample --enable-ladspa --enable-muxers --enable-demuxers --enable-encoders --disable-encoder= --enable-decoders --disable-decoder= --enable-protocol=http --disable-libpulse --enable-pthreads --enable-pic --enable-zlib --disable-mipsdsp --disable-mipsdspr2 --disable-openssl --enable-gnutls --disable-cuda --enable-vaapi --enable-vdpau --enable-libcdio --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-inline-asm --enable-x86asm

  avcodec     configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --extra-cflags='-grecord-gcc-switches -g -fPIC -I/usr/include/gsm' --disable-static --enable-shared --disable-stripping --enable-optimizations --disable-debug --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-devices --disable-htmlpages --disable-doc --enable-gpl --enable-nonfree --enable-version3 --enable-libx264 --disable-libopenh264 --enable-libfdk-aac --enable-libmp3lame --enable-runtime-cpudetect --enable-postproc --enable-bzlib --enable-swresample --disable-avresample --enable-ladspa --enable-muxers --enable-demuxers --enable-encoders --disable-encoder= --enable-decoders --disable-decoder= --enable-protocol=http --disable-libpulse --enable-pthreads --enable-pic --enable-zlib --disable-mipsdsp --disable-mipsdspr2 --disable-openssl --enable-gnutls --disable-cuda --enable-vaapi --enable-vdpau --enable-libcdio --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-inline-asm --enable-x86asm

  avformat    configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --extra-cflags='-grecord-gcc-switches -g -fPIC -I/usr/include/gsm' --disable-static --enable-shared --disable-stripping --enable-optimizations --disable-debug --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-devices --disable-htmlpages --disable-doc --enable-gpl --enable-nonfree --enable-version3 --enable-libx264 --disable-libopenh264 --enable-libfdk-aac --enable-libmp3lame --enable-runtime-cpudetect --enable-postproc --enable-bzlib --enable-swresample --disable-avresample --enable-ladspa --enable-muxers --enable-demuxers --enable-encoders --disable-encoder= --enable-decoders --disable-decoder= --enable-protocol=http --disable-libpulse --enable-pthreads --enable-pic --enable-zlib --disable-mipsdsp --disable-mipsdspr2 --disable-openssl --enable-gnutls --disable-cuda --enable-vaapi --enable-vdpau --enable-libcdio --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-inline-asm --enable-x86asm

  avdevice    configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --extra-cflags='-grecord-gcc-switches -g -fPIC -I/usr/include/gsm' --disable-static --enable-shared --disable-stripping --enable-optimizations --disable-debug --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-devices --disable-htmlpages --disable-doc --enable-gpl --enable-nonfree --enable-version3 --enable-libx264 --disable-libopenh264 --enable-libfdk-aac --enable-libmp3lame --enable-runtime-cpudetect --enable-postproc --enable-bzlib --enable-swresample --disable-avresample --enable-ladspa --enable-muxers --enable-demuxers --enable-encoders --disable-encoder= --enable-decoders --disable-decoder= --enable-protocol=http --disable-libpulse --enable-pthreads --enable-pic --enable-zlib --disable-mipsdsp --disable-mipsdspr2 --disable-openssl --enable-gnutls --disable-cuda --enable-vaapi --enable-vdpau --enable-libcdio --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-inline-asm --enable-x86asm

  avfilter    configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --extra-cflags='-grecord-gcc-switches -g -fPIC -I/usr/include/gsm' --disable-static --enable-shared --disable-stripping --enable-optimizations --disable-debug --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-devices --disable-htmlpages --disable-doc --enable-gpl --enable-nonfree --enable-version3 --enable-libx264 --disable-libopenh264 --enable-libfdk-aac --enable-libmp3lame --enable-runtime-cpudetect --enable-postproc --enable-bzlib --enable-swresample --disable-avresample --enable-ladspa --enable-muxers --enable-demuxers --enable-encoders --disable-encoder= --enable-decoders --disable-decoder= --enable-protocol=http --disable-libpulse --enable-pthreads --enable-pic --enable-zlib --disable-mipsdsp --disable-mipsdspr2 --disable-openssl --enable-gnutls --disable-cuda --enable-vaapi --enable-vdpau --enable-libcdio --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-inline-asm --enable-x86asm

  swscale     configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --extra-cflags='-grecord-gcc-switches -g -fPIC -I/usr/include/gsm' --disable-static --enable-shared --disable-stripping --enable-optimizations --disable-debug --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-devices --disable-htmlpages --disable-doc --enable-gpl --enable-nonfree --enable-version3 --enable-libx264 --disable-libopenh264 --enable-libfdk-aac --enable-libmp3lame --enable-runtime-cpudetect --enable-postproc --enable-bzlib --enable-swresample --disable-avresample --enable-ladspa --enable-muxers --enable-demuxers --enable-encoders --disable-encoder= --enable-decoders --disable-decoder= --enable-protocol=http --disable-libpulse --enable-pthreads --enable-pic --enable-zlib --disable-mipsdsp --disable-mipsdspr2 --disable-openssl --enable-gnutls --disable-cuda --enable-vaapi --enable-vdpau --enable-libcdio --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-inline-asm --enable-x86asm

  swresample  configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --extra-cflags='-grecord-gcc-switches -g -fPIC -I/usr/include/gsm' --disable-static --enable-shared --disable-stripping --enable-optimizations --disable-debug --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-devices --disable-htmlpages --disable-doc --enable-gpl --enable-nonfree --enable-version3 --enable-libx264 --disable-libopenh264 --enable-libfdk-aac --enable-libmp3lame --enable-runtime-cpudetect --enable-postproc --enable-bzlib --enable-swresample --disable-avresample --enable-ladspa --enable-muxers --enable-demuxers --enable-encoders --disable-encoder= --enable-decoders --disable-decoder= --enable-protocol=http --disable-libpulse --enable-pthreads --enable-pic --enable-zlib --disable-mipsdsp --disable-mipsdspr2 --disable-openssl --enable-gnutls --disable-cuda --enable-vaapi --enable-vdpau --enable-libcdio --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-inline-asm --enable-x86asm

  libavutil      56. 14.100 / 56. 14.100

  libavcodec     58. 18.100 / 58. 18.100

  libavformat    58. 12.100 / 58. 12.100

  libavdevice    58.  3.100 / 58.  3.100

  libavfilter     7. 16.100 /  7. 16.100

  libswscale      5.  1.100 /  5.  1.100

  libswresample   3.  1.100 /  3.  1.100

 VFS..D h264                 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10

 V..... h264_v4l2m2m         V4L2 mem2mem H.264 decoder wrapper (codec h264)

The question is — why ? And what needs to change so that libopenh264 is consistently & correctly used ?

Anomalie #4159 (Nouveau) : empêcher l’upgrade en 3.1 si le code n’est plus compatible avec la vers...

11 juillet 2018, par touti touti

Concernant la version PHP, il reste encore 49% des sites SPIP en PHP5.3 …

Il faudrait peut-être comme sur la 3.2 empêcher l’upgrade en 3.1 si il y a incompatibilité avec la version PHP ?

voir https://blog.spip.net/Statistiques-Mars-2018.html

et notamment https://blog.spip.net/local/cache-vignettes/L672xH398/repartition_php_2018-03-22-19445.png?153004875...
QuTip Example 'bloch-sphere-animation' - video renders blank

15 juillet 2018, par damien murphy.
On MacOSX Using Python3 running the following example code provided without modification : https://github.com/qutip/qutip-notebooks/blob/master/examples/bloch-sphere-animation.ipynb

I get a blank video and no errors.

I have installed libav and ffmpeg so I am not sure what else is missing with any error.

What codec did you install on mac when running these samples ?

Looking at the source of qutip I can see what it is using to render the video : https://github.com/qutip/qutip/blob/master/qutip/ipynbtools.py#L392
```
anim.save(name + '.mp4', fps=10, writer="avconv", codec="libx264")
```
I have avconv on the command line working without errors

This is the debug outout of matploylib.animation

INFO:matplotlib.animation:Animation.save using DEBUG:matplotlib.animation:frame
size in pixels is 576 x 576 INFO:matplotlib.animation:MovieWriter.run :
running command : [’avconv’, ’-f’, ’rawvideo’, ’-vcodec’, ’rawvideo’,
’-s’, ’576x576’, ’-pix_fmt’, ’rgba’, ’-r’, ’10’, ’-i’, ’pipe :’,
’-vcodec’, ’libx264’, ’-y’, ’movie.mp4’]
DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
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DEBUG:matplotlib.animation:MovieWriter — Command stdout : b’’
DEBUG:matplotlib.animation:MovieWriter — Command stderr : b"avconv
version 12.3, Copyright (c) 2000-2018 the Libav developers\n built on
Feb 13 2018 11:17:07 with Apple LLVM version 9.0.0
(clang-900.0.39.2)\n[rawvideo @ 0x7f963c000000] Estimating duration
from bitrate, this may be inaccurate\nInput #0, rawvideo, from
’pipe :’ :\n Duration : N/A, start : 0.000000, bitrate : N/A\n Stream

0:0 : Video : rawvideo\n rgba, 576x576\n 10 fps, 10 tbn\nStream mapping :\n Stream #0:0 -> #0:0 (rawvideo (native) -> h264

(libx264))\nPress ctrl-c to stop encoding\n[libx264 @ 0x7f963e001800]
using cpu capabilities : MMX2 SSE2Fast SSSE3 SSE4.2 AVX\n[libx264 @
0x7f963e001800] profile High, level 2.2\n[libx264 @ 0x7f963e001800]
264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft
2003-2017 - 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=10 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\nOutput #0, mp4, to ’movie.mp4’ :\n Metadata :\n encoder
: Lavf57.7.2\n Stream #0:0 : Video : h264 [[33][0][0][0] / 0x0021]\n
yuv420p, 576x576, q=2-31\n 10 fps, 10 tbn\n Metadata :\n
encoder : Lavc57.25.0 libx264\n Side data :\n cpb :
bitrate max/min/avg : 0/0/0 buffer size : 0 vbv_delay : -1\nframe= 6
fps= 0 q=0.0 size= 0kB time=10000000000.00 bitrate=
0.0kbits/s \rframe= 10 fps= 8 q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s \rframe= 13 fps= 7
q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s
\rframe= 16 fps= 7 q=0.0 size= 0kB time=10000000000.00
bitrate= 0.0kbits/s \rframe= 19 fps= 6 q=0.0 size= 0kB
time=10000000000.00 bitrate= 0.0kbits/s \rframe= 22 fps= 6
q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s
\rframe= 26 fps= 6 q=0.0 size= 0kB time=10000000000.00
bitrate= 0.0kbits/s \rframe= 30 fps= 6 q=0.0 size= 0kB
time=10000000000.00 bitrate= 0.0kbits/s \rframe= 33 fps= 6
q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s
\rframe= 36 fps= 6 q=0.0 size= 0kB time=10000000000.00
bitrate= 0.0kbits/s \rframe= 39 fps= 6 q=0.0 size= 0kB
time=10000000000.00 bitrate= 0.0kbits/s \rframe= 42 fps= 6
q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s
\rframe= 45 fps= 6 q=0.0 size= 0kB time=10000000000.00
bitrate= 0.0kbits/s \rframe= 48 fps= 6 q=0.0 size= 0kB
time=10000000000.00 bitrate= 0.0kbits/s \rframe= 51 fps= 6
q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s
\rframe= 55 fps= 6 q=0.0 size= 0kB time=10000000000.00
bitrate= 0.0kbits/s \rframe= 59 fps= 6 q=25.0 size= 1kB
time=10000000000.00 bitrate= 0.0kbits/s \rframe= 63 fps= 6
q=25.0 size= 1kB time=0.40 bitrate= 19.8kbits/s \rframe=
67 fps= 6 q=25.0 size= 1kB time=0.80 bitrate= 10.9kbits/s
\rframe= 71 fps= 6 q=25.0 size= 1kB time=1.20 bitrate=
7.9kbits/s \rframe= 75 fps= 6 q=25.0 size= 1kB time=1.60 bitrate= 6.4kbits/s \rframe= 79 fps= 6 q=25.0 size= 1kB
time=2.00 bitrate= 5.5kbits/s \rframe= 82 fps= 6 q=25.0 size=
1kB time=2.30 bitrate= 5.0kbits/s \rframe= 86 fps= 6 q=25.0
size= 2kB time=2.70 bitrate= 4.6kbits/s \rframe= 90 fps=
6 q=25.0 size= 2kB time=3.10 bitrate= 4.2kbits/s \rframe=
93 fps= 6 q=25.0 size= 2kB time=3.40 bitrate= 4.0kbits/s
\rframe= 97 fps= 6 q=25.0 size= 2kB time=3.80 bitrate=
3.8kbits/s \rframe= 101 fps= 6 q=25.0 size= 2kB time=4.20 bitrate= 3.6kbits/s \rframe= 105 fps= 6 q=25.0 size= 2kB
time=4.60 bitrate= 3.4kbits/s \rframe= 109 fps= 6 q=25.0 size=
2kB time=5.00 bitrate= 3.3kbits/s \rframe= 112 fps= 6 q=25.0
size= 2kB time=5.30 bitrate= 3.2kbits/s \rframe= 116 fps=
6 q=25.0 size= 2kB time=5.70 bitrate= 3.2kbits/s \rframe=
120 fps= 6 q=25.0 size= 2kB time=6.10 bitrate= 3.1kbits/s
\rframe= 123 fps= 6 q=25.0 size= 2kB time=6.40 bitrate=
3.0kbits/s \rframe= 126 fps= 6 q=25.0 size= 2kB time=6.70 bitrate= 3.0kbits/s \rframe= 129 fps= 6 q=25.0 size= 2kB
time=7.00 bitrate= 2.9kbits/s \rframe= 132 fps= 6 q=25.0 size=
3kB time=7.30 bitrate= 2.9kbits/s \rframe= 135 fps= 6 q=25.0
size= 3kB time=7.60 bitrate= 2.8kbits/s \rframe= 138 fps=
6 q=25.0 size= 3kB time=7.90 bitrate= 2.8kbits/s \rframe=
141 fps= 6 q=25.0 size= 3kB time=8.20 bitrate= 2.8kbits/s
\rframe= 144 fps= 6 q=25.0 size= 3kB time=8.50 bitrate=
2.7kbits/s \rframe= 148 fps= 6 q=25.0 size= 3kB time=8.90 bitrate= 2.7kbits/s \rframe= 150 fps= 6 q=-1.0 Lsize= 7kB
time=14.70 bitrate= 4.1kbits/s \r\nvideo:4kB audio:0kB other
streams:0kB global headers:0kB muxing overhead : 74.948143%\n[libx264 @
0x7f963e001800] frame I:1 Avg QP : 6.00 size : 112\n[libx264 @
0x7f963e001800] frame P:38 Avg QP : 6.21 size : 30\n[libx264 @
0x7f963e001800] frame B:111 Avg QP : 9.67 size : 22\n[libx264 @
0x7f963e001800] consecutive B-frames : 1.3% 0.0% 0.0%
98.7%\n[libx264 @ 0x7f963e001800] mb I I16..4 : 100.0% 0.0% 0.0%\n[libx264 @ 0x7f963e001800] mb P I16..4 : 0.0% 0.0% 0.0% P16..4 : 0.0% 0.0% 0.0% 0.0% 0.0% skip:100.0%\n[libx264 @
0x7f963e001800] mb B I16..4 : 0.0% 0.0% 0.0% B16..8 : 0.0% 0.0%
0.0% direct : 0.0% skip:100.0%\n[libx264 @ 0x7f963e001800] 8x8 transform intra:0.0%\n[libx264 @ 0x7f963e001800] coded y,uvDC,uvAC
intra : 0.0% 0.0% 0.0% inter : 0.0% 0.0% 0.0%\n[libx264 @
0x7f963e001800] i16 v,h,dc,p : 97% 0% 3% 0%\n[libx264 @
0x7f963e001800] i8c dc,h,v,p : 100% 0% 0% 0%\n[libx264 @
0x7f963e001800] Weighted P-Frames : Y:0.0% UV:0.0%\n[libx264 @
0x7f963e001800] kb/s:1.95\n"

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0:0 : Video : rawvideo\n rgba, 576x576\n 10 fps, 10 tbn\nStream mapping :\n Stream #0:0 -> #0:0 (rawvideo (native) -> h264

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