Recherche avancée

Médias (21)

Mot : - Tags -/Nine Inch Nails

Autres articles (52)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • MediaSPIP en mode privé (Intranet)

    17 septembre 2013, par

    À partir de la version 0.3, un canal de MediaSPIP peut devenir privé, bloqué à toute personne non identifiée grâce au plugin "Intranet/extranet".
    Le plugin Intranet/extranet, lorsqu’il est activé, permet de bloquer l’accès au canal à tout visiteur non identifié, l’empêchant d’accéder au contenu en le redirigeant systématiquement vers le formulaire d’identification.
    Ce système peut être particulièrement utile pour certaines utilisations comme : Atelier de travail avec des enfants dont le contenu ne doit pas (...)

  • Installation en mode standalone

    4 février 2011, par

    L’installation de la distribution MediaSPIP se fait en plusieurs étapes : la récupération des fichiers nécessaires. À ce moment là deux méthodes sont possibles : en installant l’archive ZIP contenant l’ensemble de la distribution ; via SVN en récupérant les sources de chaque modules séparément ; la préconfiguration ; l’installation définitive ;
    [mediaspip_zip]Installation de l’archive ZIP de MediaSPIP
    Ce mode d’installation est la méthode la plus simple afin d’installer l’ensemble de la distribution (...)

Sur d’autres sites (13140)

  • Static image and a folder of mp3's ?

    28 juin 2013, par Shirohige

    I want to create a bunch of videos consisting of an single image which is shown throughout the whole video but each video has a different audio file. I can do it manually with various tools but the problem is that I have a lot of audio files and I can't optimize the frame rate (more on that later) and it takes a lot of time to do it that way but ffmpeg offers everything I need but the problem is that I don't know how to batch process everything.

    The basic code :
    ffmpeg -i song-name.mp3 -loop 1 -i cover.jpg -r frame-rate -t song-length -acodec copy output.mp4

    What I want to achieve :
    Let's say that I have a folder which consists of several audio files : song-name-1.mp3, song-name-2.mp3, ..., song-name-n.mp3 and cover.jpg.

    I need a batch file which takes the name of every mp3 file in a folder (a FOR loop I suppose) and processes it with the same command :
    ffmpeg -i song-name.mp3 -loop 1 -i cover.jpg -r frame-rate -t song-length -acodec copy output.mp4

    So the image is always the same for every video. The song length can be taken with the tool mp3info and the corresponding command :
    mp3info.exe -p %S song-name.mp3

    Since I only have one image throughout the whole video, the optimal frame rate would be the inverse of the video length which is 1/length (where length is a variable in seconds which we get from mp3info).

    So the final code should look something like this :
    ffmpeg -i song-name.mp3 -loop 1 -i cover.jpg -r 1/length -t length -acodec copy song-name.mp4

    Where "song-name" is a variable which changes for every iteration of the FOR loop (i.e. for every audio file in the folder) and length is a variable whose value we get with the command :
    mp3info.exe -p %S song-name.mp3

    I found examples of a FOR loop to fetch all file names of all mp3's in a specific folder but I do not know how to integrate mp3info. I hope that somebody can help me and I have some knowledge of the C programming language if that can be used in any way.

  • Concatenate MOV files without re-encoding on iOS with ffmpeg libs

    2 juillet 2013, par Developer82

    I would like to concatenate MOV files without re-encoding. I want to do it on iOS (iPhone). All the MOV files are recorded with the same settings, no difference in dimensions or encoding profiles.

    I have succeeded to do it with the command line ffmpeg :
    ffmpeg -re -f concat -i files.txt -c copy ...
    But I have difficulties using the libraries.

    I think the demuxing part is ok, I have the h.264+AAC packets. After demuxing I shift the PTS and DTS info of each packet to have ascending values in the joined MOV file.
    The hard part is the muxing.

    I have built the ffmpeg libs with x264 lib, so it can be used if necessary, but I am not sure whether I need the x264 codec since I don't want to re-encode the MOV files, I just want to join them.

    Problems I have encountered :

    1. In this case I do not use x264 codec. At muxing I create the stream with NULL codec parameter. I have successful writing of header, packets and trailer. All the function calls return with zero error code. However, the output can be opened, but black "screen" is displayed during playback. FFprobe report is attached. I have also examined the output with MediaInfo tool. I have attached that report as well (MediaInfo report - without x264 codec.txt). As you can see there is no h.264 profile or pixel info found that might be a problem.

    2. In this case I use x264 codec with functions : avcodec_find_encoder, avformat_new_stream and avcodec_open2. Again : no decode-encode ! In this case I have much more metadata in the output file like h.264 profile and pixel info (YUV), but the av_interleaved_write_frame call simply does nothing but returns success code (0). No packet is written to the file. :( I don't know how this could happen. fwrite works, but results in un-openable file. I have also attached the MediaInfo report of this output (MediaInfo report - with x264 codec.txt).

    Questions :

    • How should I process the demuxed packets to feed the muxer ?
    • What format context and codec context setting should be done including AVOption settings ?
    • Should I use the x264 codec to do this ? I just vant to re-mux the chunks into a single joined file.
    • The chunks have their own header/trailer. Should I somehow filter the demuxed packets to skip them ?
    • The final goal is creating a network stream (RTP or RTMP) - also with re-muxing and without re-encoding. It works with command line ffmpeg :
      ffmpeg -re -f concat -i files.txt -vcodec copy -an -f rtp rtp://127.0.0.1:20000 -vn -acodec copy -f rtp rtp://127.0.0.1:30000

    Concatenating to MOV format is only an intermediate pilot. Is it recommended to work on the network format since it is so different task that there is no benefit of solving the MOV format muxing ?

    Any help, advice, suggestion is greatly appreciated.
    I can reveal code to make deeper investigation possible.

    Thanks !

  • ffmpeg command failed

    25 octobre 2015, par Asad kamran

    I am experimenting FFMPEG command to convert any video format to mp4.

    Server admin execute the below command created by me and show me the errors :

    ffmpeg -ss 00:03:00  -i  /video/1444107854.mov -c:v libx264 /video/player/1444107854.mp4  -vframes 1 /video/thumb/1444107854.jpg

    This is error :

    [aac @ 0x2b845a0] The encoder ’aac’ is experimental but experimental
    codecs are not enabled, add ’-strict -2’ if you want to use it.

    how can i avoid this error and also experimental codec, so can any one let me know what can be best codec if i explicitly specify it.

    my ffmpeg and server are as follow :

    ffmpeg version N-75903-g14573b9 Copyright (c) 2000-2015 the FFmpeg
    developers built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)

    EDIT 1 :
    I change the command a bit and add -c:a copy to copy audio stream as it is but still no hope :

    New command :

    ffmpeg -ss 00:03:00  -i  /video/1444107854.mov -c:v libx264 -c:a copy /video/player/1444107854.mp4  -vframes 1 /video/thumb/1444107854.jpg

    After executing this i got a file of 23k size, apparently as in log it only copy audio stream and no video is added in final output.
    Its Log is as follow :

    > ffmpeg version N-75903-g14573b9 Copyright (c) 2000-2015 the FFmpeg
    
> developers   built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)  
    
> configuration: --enable-libx264 --enable-gpl   libavutil      55. 
    
> 3.100 / 55.  3.100   libavcodec     57.  5.100 / 57.  5.100   libavformat    57.  3.100 / 57.  3.100   libavdevice    57.  0.100 /
    
> 57.  0.100   libavfilter     6. 10.100 /  6. 10.100   libswscale      4.  0.100 /  4.  0.100   libswresample   2.  0.100 /  2.  0.100   libpostproc    54.  0.100 / 54.  0.100 Input #0, mpeg, from
    
> '/video/1444108714.mpg':  
    
> Duration: 00:00:02.14, start: 0.184278, bitrate: 15689 kb/s
    
>     Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], max. 38810 kb/s, 29.97 fps, 29.97 tbr,
    
> 90k tbn, 59.94 tbc
    
>     Stream #0:1[0x80]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s [swscaler @ 0x347fda0] deprecated pixel format used, make sure you did
    
> set range correctly [libx264 @ 0x34708a0] using SAR=1/1 [libx264 @
    
> 0x34708a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 [libx264
    
> @ 0x34708a0] profile High, level 4.0 [libx264 @ 0x34708a0] 264 - core
    
> 148 r2597 e86f3a1 - 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=34
    
> lookahead_threads=5 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 [mp4 @ 0x346f6c0] Codec for stream 1 does not use global
    
> headers but container format requires global headers [mp4 @ 0x346f6c0]
    
> track 1: codec frame size is not set Output #0, mp4, to
    
> '/video/player/1444108714.mp4':  
    
> Metadata:
    
>     encoder         : Lavf57.3.100
    
>     Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 30k tbn,
    
> 29.97 tbc
    
>     Metadata:
    
>       encoder         : Lavc57.5.100 libx264
    
>     Stream #0:1: Audio: ac3 ([165][0][0][0] / 0x00A5), 48000 Hz, 5.1(side), 448 kb/s Output #1, image2, to '/video/thumb/1444108714.jpg':  
    
> Metadata:
    
>     encoder         : Lavf57.3.100
    
>     Stream #1:0: Video: mjpeg, yuvj420p(pc), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc
    
>     Metadata:
    
>       encoder         : Lavc57.5.100 mjpeg Stream mapping:   Stream #0:0 -> #0:0 (mpeg2video (native) -> h264 (libx264))   Stream #0:1 -> #0:1 (copy)   Stream #0:0 -> #1:0 (mpeg2video (native) -> mjpeg (native)) Press [q] to stop, [?] for help [mp4 @ 0x346f6c0]
    
> Non-monotonous DTS in output stream 0:1; previous: 2208, current: 672;
    
> changing to 2209. This may result in incorrect timestamps in the
    
> output file. frame=    0 fps=0.0 q=0.0 Lq=0.0 size=      23kB
    
> time=00:00:00.07 bitrate=2447.5kbits/s video:0kB audio:23kB
    
> subtitle:0kB other streams:0kB global headers:0kB muxing overhead:
    
> 3.457839%

    EDIT 2 :

    ffmpeg -y -i ./1445675270.m4b -c:v libx264  -crf 20 -preset slow -pix_fmt yuv420p -movflags +faststart -c:a libfdk_aac -b:a 128k  ./player/1445675270.mp4 -vframes 1 ./thumb/1445675270.jpg

    Above command output the below message, i will appreciate if you can suggest.

    ffmpeg version git-2015-10-11-49f4967 Copyright (c) 2000-2015 the FFmpeg developers
    
  built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)
    
  configuration: --prefix=/root/ffmpeg_build --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265
    
  libavutil      55.  3.100 / 55.  3.100
    
  libavcodec     57.  5.100 / 57.  5.100
    
  libavformat    57.  3.100 / 57.  3.100
    
  libavdevice    57.  0.100 / 57.  0.100
    
  libavfilter     6. 11.100 /  6. 11.100
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.100 /  2.  0.100
    
  libpostproc    54.  0.100 / 54.  0.100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x31e07c0] stream 0, timescale not set
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './1445675270.m4b':
    
  Metadata:
    
    major_brand     : M4A 
    
    minor_version   : 0
    
    compatible_brands: M4A mp42isom
    
    creation_time   : 2005-08-01 07:26:16
    
    tool            : ?
    
    title           : MAKE_2005-08-01
    
    artist          : MAKE Magazine
    
    composer        : MAKE Magazine - Phillip Torrone
    
    album           : Interview with Janus Wireless
    
    grouping        : MAKE Magazine enhanced podcast
    
    genre           : Podcast
    
    date            : 2005
    
    comment         : Interview with Janus wireless and their 5 Wi-Fi card packet capturing Linux box. This is a special enhanced podcast (this file plays images and links in iTunes and on iPod color devices).
    
  Duration: 00:02:57.54, start: 0.000000, bitrate: 162 kb/s
    
    Chapter #0:0: start 0.000000, end 17.000000
    
    Metadata:
    
      title           : MAKE Magazine @ DEFCON with JANUS
    
    Chapter #0:1: start 17.000000, end 37.000000
    
    Metadata:
    
      title           : Janus
    
    Chapter #0:2: start 37.000000, end 83.000000
    
    Metadata:
    
      title           : Construction
    
    Chapter #0:3: start 83.000000, end 109.000000
    
    Metadata:
    
      title           : The MAKERs
    
    Chapter #0:4: start 109.000000, end 177.540000
    
    Metadata:
    
      title           : Display
    
    Stream #0:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
    Stream #0:1(eng): Subtitle: mov_text (text / 0x74786574), 0 kb/s
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
    Stream #0:2(eng): Video: tiff (tiff / 0x66666974), rgb24, 167x166, 126 kb/s, SAR 206:275 DAR 17201:22825, 0.03 fps, 1 tbr, 22050 tbn, 22050 tbc (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
      encoder         : TIFF (Uncompressed)
    
    Stream #0:3(eng): Subtitle: mov_text (tx3g / 0x67337874), 160x160, 0 kb/s (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
    Stream #0:4: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 167x166 [SAR 1:1 DAR 167:166], 90k tbr, 90k tbn, 90k tbc
    
[swscaler @ 0x3242360] deprecated pixel format used, make sure you did set range correctly
    
[libx264 @ 0x3228c40] width not divisible by 2 (167x166)
    
Output #0, mp4, to './player/1445675270.mp4':
    
  Metadata:
    
    major_brand     : M4A 
    
    minor_version   : 0
    
    compatible_brands: M4A mp42isom
    
    comment         : Interview with Janus wireless and their 5 Wi-Fi card packet capturing Linux box. This is a special enhanced podcast (this file plays images and links in iTunes and on iPod color devices).
    
    tool            : ?
    
    title           : MAKE_2005-08-01
    
    artist          : MAKE Magazine
    
    composer        : MAKE Magazine - Phillip Torrone
    
    album           : Interview with Janus Wireless
    
    grouping        : MAKE Magazine enhanced podcast
    
    genre           : Podcast
    
    date            : 2005
    
    Chapter #0:0: start 0.000000, end 17.000000
    
    Metadata:
    
      title           : MAKE Magazine @ DEFCON with JANUS
    
    Chapter #0:1: start 17.000000, end 37.000000
    
    Metadata:
    
      title           : Janus
    
    Chapter #0:2: start 37.000000, end 83.000000
    
    Metadata:
    
      title           : Construction
    
    Chapter #0:3: start 83.000000, end 109.000000
    
    Metadata:
    
      title           : The MAKERs
    
    Chapter #0:4: start 109.000000, end 177.540000
    
    Metadata:
    
      title           : Display
    
    Stream #0:0(eng): Video: h264, none, q=2-31, 128 kb/s, SAR 206:275 DAR 0:0, 1 fps (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
      encoder         : Lavc57.5.100 libx264
    
    Stream #0:1(eng): Audio: aac, 0 channels, 128 kb/s (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
      encoder         : Lavc57.5.100 libfdk_aac
    
Output #1, image2, to './thumb/1445675270.jpg':
    
  Metadata:
    
    major_brand     : M4A 
    
    minor_version   : 0
    
    compatible_brands: M4A mp42isom
    
    comment         : Interview with Janus wireless and their 5 Wi-Fi card packet capturing Linux box. This is a special enhanced podcast (this file plays images and links in iTunes and on iPod color devices).
    
    tool            : ?
    
    title           : MAKE_2005-08-01
    
    artist          : MAKE Magazine
    
    composer        : MAKE Magazine - Phillip Torrone
    
    album           : Interview with Janus Wireless
    
    grouping        : MAKE Magazine enhanced podcast
    
    genre           : Podcast
    
    date            : 2005
    
    Chapter #1:0: start 0.000000, end 17.000000
    
    Metadata:
    
      title           : MAKE Magazine @ DEFCON with JANUS
    
    Chapter #1:1: start 17.000000, end 37.000000
    
    Metadata:
    
      title           : Janus
    
    Chapter #1:2: start 37.000000, end 83.000000
    
    Metadata:
    
      title           : Construction
    
    Chapter #1:3: start 83.000000, end 109.000000
    
    Metadata:
    
      title           : The MAKERs
    
    Chapter #1:4: start 109.000000, end 177.540000
    
    Metadata:
    
      title           : Display
    
    Stream #1:0(eng): Video: mjpeg, none, q=2-31, 128 kb/s, SAR 206:275 DAR 0:0, 1 fps (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
      encoder         : Lavc57.5.100 mjpeg
    
Stream mapping:
    
  Stream #0:2 -> #0:0 (tiff (native) -> h264 (libx264))
    
  Stream #0:0 -> #0:1 (aac (native) -> aac (libfdk_aac))
    
  Stream #0:2 -> #1:0 (tiff (native) -> mjpeg (native))
    
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

Navigation