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Médias (1)

Mot : - Tags -/vidéo

Autres articles (38)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (7652)

  • Using OpenCV and ffmpeg to write MP4 files

    15 septembre 2015, par TheBlueNotebook

    I want to write MP4 video files using openCV. However, judging by this issue, it looks like that is not possible. Currently, I am writing the file as an avi and then a system call to ffmpeg for conversion to MP4. This is obviously slow.
    Is there some way I can speed this up ?

    One idea I had was to inject the frame I generate using openCV into ffmpeg directly. But to do that I will have to write them to file from openCV and read that file from ffmpeg, which is time consuming. Is there some way I can achieve this ?

  • FFmpeg adding 0.05 seconds of silence to transcoded AAC file ?

    29 octobre 2015, par FTLRalph

    In Java, I’m using FFmpeg to convert a WAV file to AAC with the function :

    -i input.wav -ac 1 -ab 64000 -ar 22050 output.aac

    When I open these two files in Audacity, I can clearly see that the AAC file is 0.05 seconds longer, with 0.05 seconds of silence added to the beginning.

    This is an issue when I try to mux this AAC file with a video file - the audio doesn’t sync up.

    Is there some sort of parameter to prevent this behavior or another way to get around this issue ?

    Edit - Console output while running the function :

    10-28 17:47:10.845: I/System.out(14784): FFmpeg: Running the function: -i "input.wav" -ac 1 -ab 64000 -ar 22050 "output.aac"
    
10-28 17:47:10.845: I/System.out(14784): FFmpeg function: onStart()
    
10-28 17:47:10.865: D/FFmpeg(14784): Running publishing updates method
    
10-28 17:47:10.865: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784): ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784):   built on Oct  7 2014 15:08:46 with gcc 4.8 (GCC)
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784):   configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784):   libavutil      54.  7.100 / 54.  7.100
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784):   libavcodec     56.  1.100 / 56.  1.100
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784):   libavformat    56.  4.101 / 56.  4.101
    
10-28 17:47:10.880: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.880: I/System.out(14784):   libavdevice    56.  0.100 / 56.  0.100
    
10-28 17:47:10.880: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.880: I/System.out(14784):   libavfilter     5.  1.100 /  5.  1.100
    
10-28 17:47:10.880: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.880: I/System.out(14784):   libswscale      3.  0.100 /  3.  0.100
    
10-28 17:47:10.880: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.880: I/System.out(14784):   libswresample   1.  1.100 /  1.  1.100
    
10-28 17:47:10.880: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.880: I/System.out(14784):   libpostproc    53.  0.100 / 53.  0.100
    
10-28 17:47:10.895: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.895: I/System.out(14784): Guessed Channel Layout for  Input Stream #0.0 : mono
    
10-28 17:47:10.895: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.895: I/System.out(14784): Input #0, wav, from 'input.wav':
    
10-28 17:47:10.895: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.900: I/System.out(14784):   Duration: 00:00:02.50, bitrate: 352 kb/s
    
10-28 17:47:10.900: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.900: I/System.out(14784):     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 22050 Hz, 1 channels, s16, 352 kb/s
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784): Output #0, adts, to 'output.aac':
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784):   Metadata:
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784):     encoder         : Lavf56.4.101
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784):     Stream #0:0: Audio: aac, 22050 Hz, mono, fltp, 64 kb/s
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784):     Metadata:
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784):       encoder         : Lavc56.1.100 aac
    
10-28 17:47:10.940: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.940: I/System.out(14784): Stream mapping:
    
10-28 17:47:10.940: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.940: I/System.out(14784):   Stream #0:0 -> #0:0 (pcm_s16le (native) -> aac (native))
    
10-28 17:47:10.940: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.940: I/System.out(14784): Press [q] to stop, [?] for help
    
10-28 17:47:11.395: D/dalvikvm(14784): JIT unchain all for threadid=16
    
10-28 17:47:11.420: D/dalvikvm(14784): GC_FOR_ALLOC freed 4698K, 40% free 7190K/11964K, paused 271ms, total 272ms
    
10-28 17:47:11.420: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:11.420: I/System.out(14784): size=      12kB time=00:00:02.50 bitrate=  37.7kbits/s    
    
10-28 17:47:11.455: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:11.455: I/System.out(14784): video:0kB audio:11kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.363914%
    
10-28 17:47:11.470: I/System.out(14784): FFmpeg function: onSuccess(), message:
    
10-28 17:47:11.470: I/System.out(14784): ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
    
10-28 17:47:11.470: I/System.out(14784):   built on Oct  7 2014 15:08:46 with gcc 4.8 (GCC)
    
10-28 17:47:11.470: I/System.out(14784):   configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
    
10-28 17:47:11.470: I/System.out(14784):   libavutil      54.  7.100 / 54.  7.100
    
10-28 17:47:11.470: I/System.out(14784):   libavcodec     56.  1.100 / 56.  1.100
    
10-28 17:47:11.470: I/System.out(14784):   libavformat    56.  4.101 / 56.  4.101
    
10-28 17:47:11.470: I/System.out(14784):   libavdevice    56.  0.100 / 56.  0.100
    
10-28 17:47:11.470: I/System.out(14784):   libavfilter     5.  1.100 /  5.  1.100
    
10-28 17:47:11.470: I/System.out(14784):   libswscale      3.  0.100 /  3.  0.100
    
10-28 17:47:11.470: I/System.out(14784):   libswresample   1.  1.100 /  1.  1.100
    
10-28 17:47:11.470: I/System.out(14784):   libpostproc    53.  0.100 / 53.  0.100
    
10-28 17:47:11.470: I/System.out(14784): Guessed Channel Layout for  Input Stream #0.0 : mono
    
10-28 17:47:11.470: I/System.out(14784): Input #0, wav, from 'input.wav':
    
10-28 17:47:11.470: I/System.out(14784):   Duration: 00:00:02.50, bitrate: 352 kb/s
    
10-28 17:47:11.475: I/System.out(14784):     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 22050 Hz, 1 channels, s16, 352 kb/s
    
10-28 17:47:11.475: I/System.out(14784): Output #0, adts, to 'output.aac':
    
10-28 17:47:11.475: I/System.out(14784):   Metadata:
    
10-28 17:47:11.475: I/System.out(14784):     encoder         : Lavf56.4.101
    
10-28 17:47:11.475: I/System.out(14784):     Stream #0:0: Audio: aac, 22050 Hz, mono, fltp, 64 kb/s
    
10-28 17:47:11.475: I/System.out(14784):     Metadata:
    
10-28 17:47:11.475: I/System.out(14784):       encoder         : Lavc56.1.100 aac
    
10-28 17:47:11.475: I/System.out(14784): Stream mapping:
    
10-28 17:47:11.475: I/System.out(14784):   Stream #0:0 -> #0:0 (pcm_s16le (native) -> aac (native))
    
10-28 17:47:11.475: I/System.out(14784): Press [q] to stop, [?] for help
    
10-28 17:47:11.475: I/System.out(14784): size=      12kB time=00:00:02.50 bitrate=  37.7kbits/s    
    
10-28 17:47:11.475: I/System.out(14784): video:0kB audio:11kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.363914%
    
10-28 17:47:11.475: I/System.out(14784): FFmpeg function: onFinish()

  • How to intergrate FFMPEG NDK library in android project to decode the audio files ?

    19 août 2014, par saranya

    How to decode the audio files using FFMPEG NDK library ?
    Below is the code i used to decode the mp3 file after merging two mp3 files.
    try 

                String tempPath = Environment.getExternalStorageDirectory()+"/"+mvalue+".mp3";
    

    
            File fileTemp = new File(tempPath);
    

    
            ffmpeg = new FfmpegController(fileTemp,outFile);
    

    

    
            Clip clipMixOut = new Clip(outFile.getCanonicalPath());
    

    
            try {
    
                ffmpeg.convertToMPEG(clipMixOut,mCodecPath, new ShellUtils.ShellCallback() {
    

    
                    @Override
    
                    public void shellOut(String shellLine) {
    
                        // TODO Auto-generated method stub
    
                        System.out.println("fc>" + shellLine);
    

    
                    }
    

    
                    @Override
    
                    public void processComplete(int exitValue) {
    
                        // TODO Auto-generated method stub
    
                        System.err.println("concat non-zero exit: " + exitValue);
    

    
                    }
    
                });
    
            } catch (Exception e) {
    
                // TODO Auto-generated catch block
    
                e.printStackTrace();
    
            }
    

    
        } catch (IOException e) {
    
            Log.e(TAG+":::", "IOException running ffmpeg" + e.getMessage());
    
        }

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