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  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

  • Le profil des utilisateurs

    12 avril 2011, par

    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 (...)

  • Configurer la prise en compte des langues

    15 novembre 2010, par

    Accéder à la configuration et ajouter des langues prises en compte
    Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
    De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
    Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...)

Sur d’autres sites (7637)

  • How to convert .flv file to .3gp using ffmpeg ? [migrated]

    19 octobre 2011, par Chetana

    I have converted any video format to 3gp file format using ffmpeg on one server.
    But on another server it not works.

    Following is my script :

    exec("ffmpeg -i test.flv -sameq -acodec libmp3lame -ar 22050 -ab 96000
    
    -deinterlace -nr 500 -s 320x240 -aspect 4:3 -r 20 -g 500 -me_range 20
    
    -b 270k -deinterlace -f flv -y test.3gp ");

    Can anyone tell me what is wrong in script ?

    Following is my ffmpeg setting :

    root@ninja [ ]# ffmpeg -formats
    ffmpeg version CVS, build 3277056, Copyright (c) 2000-2004 Fabrice Bellard
    configuration : —enable-mp3lame —enable-libogg —enable-gpl —disable-mmx
    —enable-shared
    built on Jun 17 2009 10:51:43, gcc : 4.1.2 20080704 (Red Hat 4.1.2-44)

  • Android streaming screen [closed]

    21 mai 2013, par blganesh

    Im able to share screen via ffmpeg
    ./ffmpeg -f fbdev -r 24 -i /dev/graphics/fb0 http://localhost:8090/feed1.ffm

    But the output live stream is very slow.
    Following is the conf file which I'm using.

    `Port 8090
    
RTSPPort 7654
    
BindAddress 0.0.0.0
    
RTSPBindAddress 0.0.0.0
    
MaxHTTPConnections 2000
    
MaxClients 1000
    
MaxBandwidth 1000
    
CustomLog -
    
NoDaemon
    
<feed>
    
File /data/live1.ffm
    
FileMaxSize 40M
    
NoAudio
    
ACL allow 127.0.0.1
    
</feed>
    
<stream>
    
Feed live1.ffm
    
Format mpeg2video
    
NoAudio
    
VideoBitRate 1024
    
VideoFrameRate 1
    
VideoBufferSize 10000
    
VideoSize 480x800
    
VideoQMin 1
    
VideoQMax 15
    
</stream>`

    Kindly let me know how should I change my conf file to get a fast video output.

  • Streaming video from an image using FFMPEG on Windows

    26 mai 2013, par Daniel Zohar

    I wrote a program that simulates a camera and converts the output into a video stream. The program is required to be able to run on Windows.
    There are two components in the system :

    1. Camera Simulator. A C++ program that simulates the camera. It copies a pre-generated frame (i.e. PNG file) every 0.1 seconds, using the windows copy command, to a destination path ./target/target_image.png
    2. Video Stream. Using FFmpeg, it creates a video stream out of the copied images. FFmpeg is ran with the following command :
      ffmpeg -loop 1 -i ./target/target_image.png -r 10 -vcodec mpeg4 -f mpegts udp://127.0.0.1:1234

    When running the whole thing together, it works fine for a few seconds until the ffmpeg halts. Here is a log while running in debug mode :

    ffmpeg version N-52458-gaa96439 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Apr 24 2013 22:19:32 with gcc 4.8.0 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
    
  libavutil      52. 27.101 / 52. 27.101
    
  libavcodec     55.  6.100 / 55.  6.100
    
  libavformat    55.  3.100 / 55.  3.100
    
  libavdevice    55.  0.100 / 55.  0.100
    
  libavfilter     3. 60.101 /  3. 60.101
    
  libswscale      2.  2.100 /  2.  2.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  3.100 / 52.  3.100
    
Splitting the commandline.
    
Reading option &#39;-loop&#39; ... matched as AVOption &#39;loop&#39; with argument &#39;1&#39;.
    
Reading option &#39;-i&#39; ... matched as input file with argument &#39;./target/target_image.png&#39;.
    
Reading option &#39;-r&#39; ... matched as option &#39;r&#39; (set frame rate (Hz value, fraction or abbreviation)) with argument &#39;10&#39;.
    
Reading option &#39;-vcodec&#39; ... matched as option &#39;vcodec&#39; (force video codec (&#39;copy&#39; to copy stream)) with argument &#39;mpeg4&#39;.
    
Reading option &#39;-f&#39; ... matched as option &#39;f&#39; (force format) with argument &#39;mpegts&#39;.
    
Reading option &#39;udp://127.0.0.1:1234&#39; ... matched as output file.
    
Reading option &#39;-loglevel&#39; ... matched as option &#39;loglevel&#39; (set logging level) with argument &#39;debug&#39;.
    
Finished splitting the commandline.
    
Parsing a group of options: global .
    
Applying option loglevel (set logging level) with argument debug.
    
Successfully parsed a group of options.
    
Parsing a group of options: input file ./target/target_image.png.
    
Successfully parsed a group of options.
    
Opening an input file: ./target/target_image.png.
    
[AVIOContext @ 02678840] Statistics: 234307 bytes read, 0 seeks
    
[AVIOContext @ 02678840] Statistics: 221345 bytes read, 0 seeks
    
    Last message repeated 1 times
    
[AVIOContext @ 02678840] Statistics: 226329 bytes read, 0 seeks
    
    Last message repeated 2 times
    
[AVIOContext @ 02678840] Statistics: 228676 bytes read, 0 seeks
    
    Last message repeated 2 times
    
[AVIOContext @ 02678840] Statistics: 230685 bytes read, 0 seeks
    
    Last message repeated 2 times
    
[AVIOContext @ 02678840] Statistics: 232697 bytes read, 0 seeks
    
    Last message repeated 5 times
    
[AVIOContext @ 02678840] Statistics: 234900 bytes read, 0 seeks
    
    Last message repeated 2 times
    
[AVIOContext @ 02678840] Statistics: 236847 bytes read, 0 seeks
    
[image2 @ 02677ac0] Probe buffer size limit of 5000000 bytes reached
    
Input #0, image2, from &#39;./target/target_image.png&#39;:
    
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    
    Stream #0:0, 22, 1/25: Video: png, rgb24, 1274x772 [SAR 1:1 DAR 637:386], 1/25, 25 fps, 25 tbr, 25 tbn, 25 tbc
    
Successfully opened the file.
    
Parsing a group of options: output file udp://127.0.0.1:1234.
    
Applying option r (set frame rate (Hz value, fraction or abbreviation)) with argument 10.
    
Applying option vcodec (force video codec (&#39;copy&#39; to copy stream)) with argument mpeg4.
    
Applying option f (force format) with argument mpegts.
    
Successfully parsed a group of options.
    
Opening an output file: udp://127.0.0.1:1234.
    
Successfully opened the file.
    
[graph 0 input from stream 0:0 @ 02769280] Setting &#39;video_size&#39; to value &#39;1274x772&#39;
    
[graph 0 input from stream 0:0 @ 02769280] Setting &#39;pix_fmt&#39; to value &#39;2&#39;
    
[graph 0 input from stream 0:0 @ 02769280] Setting &#39;time_base&#39; to value &#39;1/25&#39;
    
[graph 0 input from stream 0:0 @ 02769280] Setting &#39;pixel_aspect&#39; to value &#39;1/1&#39;
    
[graph 0 input from stream 0:0 @ 02769280] Setting &#39;sws_param&#39; to value &#39;flags=2&#39;
    
[graph 0 input from stream 0:0 @ 02769280] Setting &#39;frame_rate&#39; to value &#39;25/1&#39;
    
[graph 0 input from stream 0:0 @ 02769280] w:1274 h:772 pixfmt:rgb24 tb:1/25 fr:25/1 sar:1/1 sws_param:flags=2
    
[format @ 02768ba0] compat: called with args=[yuv420p]
    
[format @ 02768ba0] Setting &#39;pix_fmts&#39; to value &#39;yuv420p&#39;
    
[auto-inserted scaler 0 @ 02768740] Setting &#39;w&#39; to value &#39;0&#39;
    
[auto-inserted scaler 0 @ 02768740] Setting &#39;h&#39; to value &#39;0&#39;
    
[auto-inserted scaler 0 @ 02768740] Setting &#39;flags&#39; to value &#39;0x4&#39;
    
[auto-inserted scaler 0 @ 02768740] w:0 h:0 flags:&#39;0x4&#39; interl:0
    
[format @ 02768ba0] auto-inserting filter &#39;auto-inserted scaler 0&#39; between the filter &#39;Parsed_null_0&#39; and the filter &#39;format&#39;
    
[AVFilterGraph @ 026772c0] query_formats: 4 queried, 3 merged, 1 already done, 0 delayed
    
[auto-inserted scaler 0 @ 02768740] w:1274 h:772 fmt:rgb24 sar:1/1 -> w:1274 h:772 fmt:yuv420p sar:1/1 flags:0x4
    
[mpeg4 @ 02785020] detected 4 logical cores
    
[mpeg4 @ 02785020] intra_quant_bias = 0 inter_quant_bias = -64
    
[mpegts @ 0277da40] muxrate VBR, pcr every 1 pkts, sdt every 200, pat/pmt every 40 pkts
    
Output #0, mpegts, to &#39;udp://127.0.0.1:1234&#39;:
    
  Metadata:
    
    encoder         : Lavf55.3.100
    
    Stream #0:0, 0, 1/90000: Video: mpeg4, yuv420p, 1274x772 [SAR 1:1 DAR 637:386], 1/10, q=2-31, 200 kb/s, 90k tbn, 10 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (png -> mpeg4)
    
Press [q] to stop, [?] for help
    
*** drop!
    
    Last message repeated 10 times
    
frame=   11 fps=0.0 q=4.0 size=     118kB time=00:00:01.10 bitrate= 875.1kbits/s dup=0 drop=11    
    
Statistics: 242771 bytes read, 0 seeks
    
[AVIOContext @ 02674a60] Statistics: 246525 bytes read, 0 seeks
    
*** drop!
    
[AVIOContext @ 02674a60] Statistics: 230678 bytes read, 0 seeks
    
[AVIOContext @ 02674a60] Statistics: 244023 bytes read, 0 seeks
    
*** drop!
    
[AVIOContext @ 02674a60] Statistics: 246389 bytes read, 0 seeks
    

    
*** drop!
    
[AVIOContext @ 02674a60] Statistics: 224478 bytes read, 0 seeks
    
[AVIOContext @ 02674a60] Statistics: 228013 bytes read, 0 seeks
    
*** drop!
    
[image2 @ 02677ac0] Could not open file : ./target/target_image.png
    
./target/target_image.png: Input/output error
    
[output stream 0:0 @ 02768c20] EOF on sink link output stream 0:0:default.
    
No more output streams to write to, finishing.
    
frame=  164 fps= 17 q=31.0 Lsize=     959kB time=00:00:16.40 bitrate= 478.9kbits/s dup=0 drop=240    
    

    
video:869kB audio:0kB subtitle:0 global headers:0kB muxing overhead 10.285235%
    
404 frames successfully decoded, 0 decoding errors
    
[AVIOContext @ 026779c0] Statistics: 0 seeks, 746 writeouts

    It seems to me there's some kind of collision between the reading and writing to/from the same file. What's also interesting is that on Linux (while replacing the copy with cp) the program works just fine.

    Can someone suggest a way to solve this issue ? Alternatives solutions are also acceptable as long as the logical workflow remains the same.

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