Recherche avancée

Médias (91)

Autres articles (38)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 is the first MediaSPIP stable release.
    Its official release date is June 21, 2013 and is announced here.
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Emballe Médias : Mettre en ligne simplement des documents

    29 octobre 2010, par

    Le plugin emballe médias a été développé principalement pour la distribution mediaSPIP mais est également utilisé dans d’autres projets proches comme géodiversité par exemple. Plugins nécessaires et compatibles
    Pour fonctionner ce plugin nécessite que d’autres plugins soient installés : CFG Saisies SPIP Bonux Diogène swfupload jqueryui
    D’autres plugins peuvent être utilisés en complément afin d’améliorer ses capacités : Ancres douces Légendes photo_infos spipmotion (...)

  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

Sur d’autres sites (5069)

  • adding silent audio in ffmpeg

    10 février 2017, par jon

    I’m trying to use ffmpeg to add a silent audio track to a MOV file.

    I created a silent audio track longer than the video, and intend to use the -shortest option with ffmpeg.

    Using SoX v14.3.1, I run this to generate a wav file :

    sox -n -r 44100 -b 16 -c 2 -L silence.wav trim 0.0 60.000
    

    
# -n  = Sox's null file
    
# -r = sample rate 
    
# -b = bits per sample
    
# -c = num of channels
    
# -L = little endian
    
# filename
    
# trim - is an effect, args start and length.

    My basic ffmpeg command looks like this :

    ffmpeg -shortest \
    
-i silence.wav -acodec pcm_s16le \
    
-i vid_no_sound.mov -vcodec copy vid_with_sound.mov

    The result of this is :

    ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
    
  built on Aug 27 2012 13:11:25 with gcc 4.4.5
    
  configuration: --extra-cflags=-static --prefix=/root/ffmpeg_build/src/ffmpeg-0.11.1 --enable-bzlib --enable-gnutls --enable-libfreetype --enable-libmp3lame --enable-libdc1394 --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-openssl --enable-zlib --enable-gpl --enable-nonfree --enable-version3
    
  libavutil      51. 54.100 / 51. 54.100
    
  libavcodec     54. 23.100 / 54. 23.100
    
  libavformat    54.  6.100 / 54.  6.100
    
  libavdevice    54.  0.100 / 54.  0.100
    
  libavfilter     2. 77.100 /  2. 77.100
    
  libswscale      2.  1.100 /  2.  1.100
    
  libswresample   0. 15.100 /  0. 15.100
    
  libpostproc    52.  0.100 / 52.  0.100
    
[wav @ 0x29ab2e0] max_analyze_duration 5000000 reached at 5015510
    
Guessed Channel Layout for  Input Stream #0.0 : stereo
    
Input #0, wav, from 'silence.wav':
    
  Duration: 00:01:00.00, bitrate: 1411 kb/s
    
    Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
    
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'vid_no_sound.mov':
    
  Metadata:
    
    major_brand     : qt
    
    minor_version   : 537199360
    
    compatible_brands: qt
    
    creation_time   : 2012-07-25 13:41:44
    
  Duration: 00:00:14.50, start: 0.000000, bitrate: 27457 kb/s
    
    Stream #1:0(eng): Video: qtrle (rle  / 0x20656C72), rgb24, 1920x1080, 27450 kb/s, SAR 1920:1920 DAR 16:9, 24 fps, 24 tbr, 24 tbn, 24 tbc
    
    Metadata:
    
      creation_time   : 2012-07-25 13:41:44
    
      handler_name    : Apple Alias Data Handler
    
    Stream #1:1(eng): Data: none (tmcd / 0x64636D74)
    
    Metadata:
    
      creation_time   : 2012-07-25 13:42:06
    
      handler_name    : Apple Alias Data Handler
    
      timecode        : 00:00:00:00
    
File 'vid_with_sound.mov' already exists. Overwrite ? [y/N] y
    
auto-inserting filter 'auto-inserted resampler 0' between the filter 'src' and the filter 'aformat'
    
[aresample @ 0x2ab3b00] chl:stereo fmt:s16 r:44100Hz -> chl:stereo fmt:flt r:44100Hz
    
[NULL @ 0x2994320] Codec is experimental but experimental codecs are not enabled, try -strict -2
    
Output #0, mov, to 'vid_with_sound.mov':
    
    Stream #0:0(eng): Video: qtrle (rle  / 0x20656C72), rgb24, 1920x1080 [SAR 1920:1920 DAR 16:9], q=2-31, 27450 kb/s, 24 fps, 90k tbn, 24 tbc
    
    Metadata:
    
      creation_time   : 2012-07-25 13:41:44
    
      handler_name    : Apple Alias Data Handler
    
    Stream #0:1: Audio: none, 44100 Hz, stereo, flt, 128 kb/s
    
Stream mapping:
    
  Stream #1:0 -> #0:0 (copy)
    
  Stream #0:0 -> #0:1 (pcm_s16le -> aac)
    
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height

    I have tried adding the -strict -2 as suggested, although I am not sure where to put it in the command line.

    I’ve spent two hours trying different things and reading ffmpeg documentation, but I’m still stuck.

    How do I add a silent audio track to a mov file ?

  • adding silent audio in ffmpeg

    30 mars 2020, par jon

    I'm trying to use ffmpeg to add a silent audio track to a MOV file.

    



    I created a silent audio track longer than the video, and intend to use the -shortest option with ffmpeg.

    



    Using SoX v14.3.1, I run this to generate a wav file :

    



    sox -n -r 44100 -b 16 -c 2 -L silence.wav trim 0.0 60.000

# -n  = Sox's null file
# -r = sample rate 
# -b = bits per sample
# -c = num of channels
# -L = little endian
# filename
# trim - is an effect, args start and length.


    



    My basic ffmpeg command looks like this :

    



    ffmpeg -shortest \
-i silence.wav -acodec pcm_s16le \
-i vid_no_sound.mov -vcodec copy vid_with_sound.mov


    



    The result of this is :

    



    ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
  built on Aug 27 2012 13:11:25 with gcc 4.4.5
  configuration: --extra-cflags=-static --prefix=/root/ffmpeg_build/src/ffmpeg-0.11.1 --enable-bzlib --enable-gnutls --enable-libfreetype --enable-libmp3lame --enable-libdc1394 --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-openssl --enable-zlib --enable-gpl --enable-nonfree --enable-version3
  libavutil      51. 54.100 / 51. 54.100
  libavcodec     54. 23.100 / 54. 23.100
  libavformat    54.  6.100 / 54.  6.100
  libavdevice    54.  0.100 / 54.  0.100
  libavfilter     2. 77.100 /  2. 77.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100
[wav @ 0x29ab2e0] max_analyze_duration 5000000 reached at 5015510
Guessed Channel Layout for  Input Stream #0.0 : stereo
Input #0, wav, from 'silence.wav':
  Duration: 00:01:00.00, bitrate: 1411 kb/s
    Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'vid_no_sound.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    creation_time   : 2012-07-25 13:41:44
  Duration: 00:00:14.50, start: 0.000000, bitrate: 27457 kb/s
    Stream #1:0(eng): Video: qtrle (rle  / 0x20656C72), rgb24, 1920x1080, 27450 kb/s, SAR 1920:1920 DAR 16:9, 24 fps, 24 tbr, 24 tbn, 24 tbc
    Metadata:
      creation_time   : 2012-07-25 13:41:44
      handler_name    : Apple Alias Data Handler
    Stream #1:1(eng): Data: none (tmcd / 0x64636D74)
    Metadata:
      creation_time   : 2012-07-25 13:42:06
      handler_name    : Apple Alias Data Handler
      timecode        : 00:00:00:00
File 'vid_with_sound.mov' already exists. Overwrite ? [y/N] y
auto-inserting filter 'auto-inserted resampler 0' between the filter 'src' and the filter 'aformat'
[aresample @ 0x2ab3b00] chl:stereo fmt:s16 r:44100Hz -> chl:stereo fmt:flt r:44100Hz
[NULL @ 0x2994320] Codec is experimental but experimental codecs are not enabled, try -strict -2
Output #0, mov, to 'vid_with_sound.mov':
    Stream #0:0(eng): Video: qtrle (rle  / 0x20656C72), rgb24, 1920x1080 [SAR 1920:1920 DAR 16:9], q=2-31, 27450 kb/s, 24 fps, 90k tbn, 24 tbc
    Metadata:
      creation_time   : 2012-07-25 13:41:44
      handler_name    : Apple Alias Data Handler
    Stream #0:1: Audio: none, 44100 Hz, stereo, flt, 128 kb/s
Stream mapping:
  Stream #1:0 -> #0:0 (copy)
  Stream #0:0 -> #0:1 (pcm_s16le -> aac)
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height


    



    I have tried adding the -strict -2 as suggested, although I am not sure where to put it in the command line.

    



    I've spent two hours trying different things and reading ffmpeg documentation, but I'm still stuck.

    



    How do I add a silent audio track to a mov file ?

    


  • JAVA Spring : Grabbing Image from a multipartFile video via FFMPEG JavaCV

    29 août 2023, par Thanh Hiếu Nguyễn

    I'm trying to achieve Grabbing a frame from a MultipartFile or URL and here's my attempt.

    


    URL :

    


    InputStream inputStream = new java.net.URL(video.getUrl()).openStream();

FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(inputStream);
grabber.start();

int frameRate = (int) grabber.getFrameRate();
int targetFrameNumber = (int) (frameRate * timeLengthSeconds);

grabber.setFrameNumber(targetFrameNumber);
Frame frame = grabber.grab();

grabber.stop();

if (frame != null) {
    Java2DFrameConverter converter = new Java2DFrameConverter();
    BufferedImage bufferedImage = converter.getBufferedImage(frame);
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    ImageIO.write(bufferedImage, "jpeg", byteArrayOutputStream);
    byte[] bytes = byteArrayOutputStream.toByteArray();


    


    MultipartFile :

    


    byte[] videoBytes = video.getBytes();

FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(new ByteArrayInputStream(videoBytes));
int frameRate = (int) 30;
int targetFrameNumber = (int) (frameRate * timeLengthSeconds);

grabber.setFrameNumber(targetFrameNumber);
grabber.setVideoStream(10);
grabber.start();


Frame frame = grabber.grab();

grabber.stop();

if (frame != null) {
    Java2DFrameConverter converter = new Java2DFrameConverter();
    BufferedImage bufferedImage = converter.getBufferedImage(frame);
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    ImageIO.write(bufferedImage, "jpeg", byteArrayOutputStream);
    byte[] bytes = byteArrayOutputStream.toByteArray();


    


    Both of them generates an AUDIO type of Frame, so later I can't buffer an image out of it, tried different videos, frameRate, frameNumber, same result.

    


    UPDATE :
    
So I manage to get the frame with following code

    


    byte[] videoBytes = video.getBytes();
FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(new ByteArrayInputStream(videoBytes));
grabber.setFormat("mp4");
int frameRate = (int) grabber.getFrameRate();
int targetFrameNumber = (int) (frameRate * timeLengthSeconds);

grabber.setFrameNumber(targetFrameNumber);
grabber.setVideoStream(0);
grabber.start();


Frame frame = grabber.grabImage();

grabber.stop();


    


    But another problem occurred

    


    A fatal error has been detected by the Java Runtime Environment:

EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x000001dd6cac79d6, pid=20824, tid=21048 
 JRE version: Java(TM) SE Runtime Environment 18.9 (11.0.12+8) (build 11.0.12+8-LTS-237)
 Java VM: Java HotSpot(TM) 64-Bit Server VM 18.9 (11.0.12+8-LTS-237, mixed mode, tiered, compressed oops, g1 gc, windows-amd64)
 Problematic frame:
 J 657 c1 jdk.internal.misc.Unsafe.getByte(J)B java.base@11.0.12 (7 bytes) @ 0x000001dd6cac79d6 [0x000001dd6cac79a0+0x0000000000000036]


    


    Any help is appreciated !

    


Navigation