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  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • 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 (...)

Sur d’autres sites (6919)

  • How to make multiple edits to a single video file, and then encode once in ffmpeg ?

    4 juin 2022, par Edesem

    I simply want to be able to do actions such as trimming videos and concatenate videos possibly mulitples times for one video file without encoding each time, and then finally at the end encode once. This would be similar to how normal video editors work where you can make all the edits first and then encode at the end ?

    


    Is this possible ? Alternatives ? Currently it is very inefficient and bad for quality that if I want to cut out some parts of a video I have to wait for it to reencode and then do the next edit one after the other.

    


    Thank you.

    


  • ffmpeg pipe to mediainfo

    16 octobre 2017, par Macheneso R.

    I need to get infos from the raw h264 track of a mkv file.

    Some times ago, I used to extract the h264 raw stream, and analyze it by itself.

    now, I would like to limit the disk usage, avoiding the extract process, so there are 2 choices :

    • use ffmpeg to pipe h264 to mediainfo

    • use a sort of ramdisk

    I tried

    ffmpeg -i original.mkv -map 0:v:0 -c copy -bsf:v h264_mp4toannexb -f h264 - | mediainfo -

    but it returns none

    where am I wrong ?

  • What is wrong with the following ffmpeg command

    14 août 2013, par Brad

    What is wrong with the following ffmpeg command. Originally this had -sameq instead of the -qscale:a 0

    Command :

    ffmpeg -loglevel debug -threads 4 -i sample-in.mpg -ss 00:00:01 -t 00:00:05 -f image2 -y sample-frames/frame%d.png -acodec copy -qscale:a 0  -y sample.mp3

    Output
    

    
ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Jul  9 2013 04:36:42 with Apple clang version 4.1 (tags/Apple/clang-421.11.66) (based on LLVM 3.1svn)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/1.2.1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=cc --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid --enable-ffplay
    
  libavutil      52. 18.100 / 52. 18.100
    
  libavcodec     54. 92.100 / 54. 92.100
    
  libavformat    54. 63.104 / 54. 63.104
    
  libavdevice    54.  3.103 / 54.  3.103
    
  libavfilter     3. 42.103 /  3. 42.103
    
  libswscale      2.  2.100 /  2.  2.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  2.100 / 52.  2.100
    

    
Splitting the commandline.
    
Reading option '-loglevel' ... matched as option 'loglevel' (set libav* logging level) with argument 'debug'.
    
Reading option '-threads' ... matched as AVOption 'threads' with argument '4'.
    
Reading option '-i' ... matched as input file with argument 'sample-in.mpg'.
    
Reading option '-ss' ... matched as option 'ss' (set the start time offset) with argument '00:00:01'.
    
Reading option '-t' ... matched as option 't' (record or transcode "duration" seconds of audio/video) with argument '00:00:05'.
    
Reading option '-f' ... matched as option 'f' (force format) with argument 'image2'.
    
Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
    
Reading option 'sample-frames/frame%d.png' ... matched as output file.
    
Reading option '-acodec' ... matched as option 'acodec' (force audio codec ('copy' to copy stream)) with argument 'copy'.
    
Reading option '-qscale:a' ... matched as option 'qscale' (use fixed quality scale (VBR)) with argument '0'.
    
Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
    
Reading option 'sample.mp3' ... matched as output file.
    
Finished splitting the commandline.
    
Parsing a group of options: global .
    
Applying option loglevel (set libav* logging level) with argument debug.
    
Applying option y (overwrite output files) with argument 1.
    
    Last message repeated 1 times
    
Successfully parsed a group of options.
    
Parsing a group of options: input file sample-in.mpg.
    
Successfully parsed a group of options.
    
Opening an input file: sample-in.mpg.
    
[mpeg @ 0x7ffb4a80f200] Format mpeg probed with size=16384 and score=52
    
[mpeg @ 0x7ffb4a80f200] File position before avformat_find_stream_info() is 0
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2500
    
[mpeg @ 0x7ffb4a80f200] Probe with size=2002, packets=1 detected mpegvideo with score=25
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2499
    
[mpeg @ 0x7ffb4a80f200] Probe with size=4043, packets=2 detected mpegvideo with score=25
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2498
    
[mpeg @ 0x7ffb4a80f200] Probe with size=6084, packets=3 detected mpegvideo with score=25
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2497
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2496
    
[mpeg @ 0x7ffb4a80f200] Probe with size=10166, packets=5 detected mpegvideo with score=25
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2495
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2494
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2493
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2492
    
[mpeg @ 0x7ffb4a80f200] Probe with size=18330, packets=9 detected mpegvideo with score=25
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2491
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2490
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2489
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2488
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2487
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2486
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2485
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2484
    
[mpeg @ 0x7ffb4a80f200] Probe with size=34658, packets=17 detected mpegvideo with score=25
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2483
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2482
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2481
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2480
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2479
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2478
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2477
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2476
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2475
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2474
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2473
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2472
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2471
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2470
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2469
    
[mpeg @ 0x7ffb4a80f200] probing stream 0 pp:2468
    
[mpeg @ 0x7ffb4a80f200] Probe with size=67266, packets=33 detected mpegvideo with score=51
    
[mpeg @ 0x7ffb4a80f200] probed stream 0
    
[mpeg @ 0x7ffb4a80f200] first_dts 86997 not matching first dts 93003 in the queue
    
    Last message repeated 3 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 86997 not matching first dts 108018 in the queue
    
    Last message repeated 3 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 111600 in the queue
    
    Last message repeated 9 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 135360 in the queue
    
    Last message repeated 8 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 156960 in the queue
    
    Last message repeated 9 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 180720 in the queue
    
    Last message repeated 8 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 202320 in the queue
    
    Last message repeated 9 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 226080 in the queue
    
    Last message repeated 8 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 247680 in the queue
    
    Last message repeated 9 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 271440 in the queue
    
    Last message repeated 9 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 295200 in the queue
    
    Last message repeated 8 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 316800 in the queue
    
    Last message repeated 9 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 340560 in the queue
    
    Last message repeated 8 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 362160 in the queue
    
    Last message repeated 9 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 385920 in the queue
    
    Last message repeated 8 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 407520 in the queue
    
    Last message repeated 9 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 431280 in the queue
    
    Last message repeated 8 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 452880 in the queue
    
    Last message repeated 9 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 476640 in the queue
    
    Last message repeated 8 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 498240 in the queue
    
    Last message repeated 9 times
    
[mpeg @ 0x7ffb4a80f200] first_dts 90000 not matching first dts 522000 in the queue
    
    Last message repeated 9 times
    
[mpeg @ 0x7ffb4a80f200] max_analyze_duration 5000000 reached at 5005000 microseconds
    
[mpeg @ 0x7ffb4a80f200] File position after avformat_find_stream_info() is 0
    
Input #0, mpeg, from 'sample-in.mpg':
    
  Duration: 00:00:05.97, start: 1.000000, bitrate: 6827 kb/s
    
    Stream #0:0[0x1e0], 152, 1/90000: Video: mpeg1video, yuv420p, 704x480 [SAR 200:219 DAR 880:657], 1001/30000, 104857 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 29.97 tbc
    
    Stream #0:1[0x1c0], 211, 1/90000: Audio: mp2, 48000 Hz, stereo, s16p, 64 kb/s
    
Successfully opened the file.
    
Parsing a group of options: output file sample-frames/frame%d.png.
    
Applying option ss (set the start time offset) with argument 00:00:01.
    
Applying option t (record or transcode "duration" seconds of audio/video) with argument 00:00:05.
    
Applying option f (force format) with argument image2.
    
Successfully parsed a group of options.
    
Opening an output file: sample-frames/frame%d.png.
    
Successfully opened the file.
    
Parsing a group of options: output file sample.mp3.
    
Applying option acodec (force audio codec ('copy' to copy stream)) with argument copy.
    
Applying option qscale:a (use fixed quality scale (VBR)) with argument 0.
    
Successfully parsed a group of options.
    
Opening an output file: sample.mp3.
    
Successfully opened the file.
    
[buffer @ 0x7ffb4a411e40] Setting entry with key 'video_size' to value '704x480'
    
[buffer @ 0x7ffb4a411e40] Setting entry with key 'pix_fmt' to value '0'
    
[buffer @ 0x7ffb4a411e40] Setting entry with key 'time_base' to value '1/90000'
    
[buffer @ 0x7ffb4a411e40] Setting entry with key 'pixel_aspect' to value '200/219'
    
[buffer @ 0x7ffb4a411e40] Setting entry with key 'sws_param' to value 'flags=2'
    
[buffer @ 0x7ffb4a411e40] Setting entry with key 'frame_rate' to value '30000/1001'
    
[graph 0 input from stream 0:0 @ 0x7ffb4a411de0] w:704 h:480 pixfmt:yuv420p tb:1/90000 fr:30000/1001 sar:200/219 sws_param:flags=2
    
[scale @ 0x7ffb4a414800] Setting 'w' to value '0'
    
[scale @ 0x7ffb4a414800] Setting 'h' to value '0'
    
[scale @ 0x7ffb4a414800] Setting 'flags' to value '0x4'
    
[auto-inserted scaler 0 @ 0x7ffb4a414740] w:0 h:0 flags:'0x4' interl:0
    
[format @ 0x7ffb4a42aa20] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed_null_0' and the filter 'format'
    
[auto-inserted scaler 0 @ 0x7ffb4a414740] picking rgb24 out of 7 ref:yuv420p alpha:0
    
[auto-inserted scaler 0 @ 0x7ffb4a414740] w:704 h:480 fmt:yuv420p sar:200/219 -> w:704 h:480 fmt:rgb24 sar:200/219 flags:0x4
    
[png @ 0x7ffb4a831000] detected 4 logical cores
    
[mp3 @ 0x7ffb4a831600] Invalid audio stream. Exactly one MP3 audio stream is required.
    
Output #0, image2, to 'sample-frames/frame%d.png':
    
  Metadata:
    
    encoder         : Lavf54.63.104
    
    Stream #0:0, 0, 1/90000: Video: png, rgb24, 704x480 [SAR 200:219 DAR 880:657], 1001/30000, q=2-31, 200 kb/s, 90k tbn, 29.97 tbc
    
Output #1, mp3, to 'sample.mp3':
    
  Metadata:
    
    encoder         : Lavf54.63.104
    
    Stream #1:0, 0, 1/90000: Audio: mp2, 48000 Hz, stereo, 64 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mpeg1video -> png)
    
  Stream #0:1 -> #1:0 (copy)
    
Could not write header for output file #1 (incorrect codec parameters ?): Invalid argument
    
Statistics: 4542608 bytes read, 2 seeks

    I found the code above from : http://kwlug.org/node/854
    I did a few edits removing the -sameq and replacing it with -qscale:a 0 which probably is wrong.

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