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Autres articles (40)

  • Mise à disposition des fichiers

    14 avril 2011, par

    Par défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
    Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
    Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...)

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • 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.

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  • FFMPEG command to crop and transpose video comes out zoomed in bad quality

    15 juillet 2015, par Brian

    I’m trying to convert an mp4 video with dimensions usually 960x720 into a sqaure 480:480 video but it comes out looking squished usually, the command is

    "-y -i %s -vf crop=480:480,transpose=%d -threads 5 -metadata:s:v rotate=0 -c:v libx264 -crf 27 -preset ultrafast -c:a copy -bsf:a aac_adtstoasc %s";

    Am I missing something, do I need to down scale first or something ?

    **EDIT adding full console output. The ffmpeg command is updated, but the goal still remains the same, take an arbitrary video and square crop it

    07-14 22:30:32.813: D/ffmpeg(30354): -y -i /data/data/com.myapp.app/cache:temp/i7h4ajm0nim1mbcnrqotvrhhsc.mp4 -vf scale=iw*sar:ih,transpose=1 -threads 5 -metadata:s:v rotate=0 -c:v libx264 -crf 27 -preset ultrafast -c:a copy -bsf:a aac_adtstoasc -aspect 1:1 /data/data/com.myapp.app/cache:temp/p1t3bhs0oa3lpqa67g5i9ninm9.ts
    
07-14 22:30:32.903: D/ffmpeg(30354): new time reamining 9283
    
07-14 22:30:32.913: D/FFmpeg(30354): Running publishing updates method
    
07-14 22:30:35.963: D/ffmpeg(30354): WARNING: linker: /data/data/com.myapp.app/files/ffmpeg has text relocations. This is wasting memory and prevents security hardening. Please fix.
    
07-14 22:30:35.963: D/ffmpeg(30354): ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
    
07-14 22:30:35.963: D/ffmpeg(30354):   built on Jun  3 2015 21:56:01 with gcc 4.8 (GCC)
    
07-14 22:30:35.963: D/ffmpeg(30354):   configuration: --target-os=linux --cross-prefix=/Users/Brian1/development/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/Users/Brian1/development/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-small --enable-libx264 --enable-pthreads --disable-muxers --enable-muxer=mpegts --enable-muxer=mp4 --disable-demuxers --enable-demuxer=mpegts --enable-demuxer=mov --enable-demuxer=mpeg --enable-demuxer=mp4 --disable-debug --disable-decoders --enable-decoder=h264 --enable-decoder=aac --disable-devices --disable-encoders --enable-encoder=libx264 --disable-network --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/Users/Brian1/development/ffmpeg-android/ffmpeg-pkg-config --prefix=/Users/Brian1/development/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/Users/Brian1/development/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/Users/Brian1/development/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs=-lm --extra-cxxflags=
    
07-14 22:30:35.963: D/ffmpeg(30354):   libavutil      54.  7.100 / 54.  7.100
    
07-14 22:30:35.963: D/ffmpeg(30354):   libavcodec     56.  1.100 / 56.  1.100
    
07-14 22:30:35.963: D/ffmpeg(30354):   libavformat    56.  4.101 / 56.  4.101
    
07-14 22:30:35.963: D/ffmpeg(30354):   libavdevice    56.  0.100 / 56.  0.100
    
07-14 22:30:35.963: D/ffmpeg(30354):   libavfilter     5.  1.100 /  5.  1.100
    
07-14 22:30:35.963: D/ffmpeg(30354):   libswscale      3.  0.100 /  3.  0.100
    
07-14 22:30:35.963: D/ffmpeg(30354):   libswresample   1.  1.100 /  1.  1.100
    
07-14 22:30:35.963: D/ffmpeg(30354):   libpostproc    53.  0.100 / 53.  0.100
    
07-14 22:30:35.963: D/ffmpeg(30354): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/data/data/com.myapp.app/cache:temp/i7h4ajm0nim1mbcnrqotvrhhsc.mp4':
    
07-14 22:30:35.963: D/ffmpeg(30354):   Metadata:
    
07-14 22:30:35.963: D/ffmpeg(30354):     major_brand     : mp42
    
07-14 22:30:35.963: D/ffmpeg(30354):     minor_version   : 0
    
07-14 22:30:35.963: D/ffmpeg(30354):     compatible_brands: isommp42
    
07-14 22:30:35.963: D/ffmpeg(30354):     creation_time   : 2015-07-15 05:30:32
    
07-14 22:30:35.963: D/ffmpeg(30354):   Duration: 00:00:02.75, start: 0.000000, bitrate: 9315 kb/s
    
07-14 22:30:35.963: D/ffmpeg(30354):     Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuv420p, 960x720, 10062 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc (default)
    
07-14 22:30:35.963: D/ffmpeg(30354):     Metadata:
    
07-14 22:30:35.963: D/ffmpeg(30354):       rotate          : 90
    
07-14 22:30:35.963: D/ffmpeg(30354):       creation_time   : 2015-07-15 05:30:32
    
07-14 22:30:35.963: D/ffmpeg(30354):       handler_name    : VideoHandle
    
07-14 22:30:35.963: D/ffmpeg(30354):     Side data:
    
07-14 22:30:35.963: D/ffmpeg(30354):       displaymatrix: rotation of -90.00 degrees
    
07-14 22:30:35.963: D/ffmpeg(30354):     Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 151 kb/s (default)
    
07-14 22:30:35.963: D/ffmpeg(30354):     Metadata:
    
07-14 22:30:35.963: D/ffmpeg(30354):       creation_time   : 2015-07-15 05:30:32
    
07-14 22:30:35.963: D/ffmpeg(30354):       handler_name    : SoundHandle
    
07-14 22:30:35.963: D/ffmpeg(30354): [libx264 @ 0xb6808800] using SAR=4/3
    
07-14 22:30:35.963: D/ffmpeg(30354): [libx264 @ 0xb6808800] using cpu capabilities: none!
    
07-14 22:30:35.963: D/ffmpeg(30354): [libx264 @ 0xb6808800] profile Constrained Baseline, level 3.1
    
07-14 22:30:35.963: D/ffmpeg(30354): [adts @ 0xb685b000] Using AVStream.codec.time_base as a timebase hint to the muxer is deprecated. Set AVStream.time_base instead.
    
07-14 22:30:35.963: D/ffmpeg(30354): Output #0, mpegts, to '/data/data/com.myapp.app/cache:temp/p1t3bhs0oa3lpqa67g5i9ninm9.ts':
    
07-14 22:30:35.963: D/ffmpeg(30354):   Metadata:
    
07-14 22:30:35.963: D/ffmpeg(30354):     major_brand     : mp42
    
07-14 22:30:35.963: D/ffmpeg(30354):     minor_version   : 0
    
07-14 22:30:35.963: D/ffmpeg(30354):     compatible_brands: isommp42
    
07-14 22:30:35.963: D/ffmpeg(30354):     encoder         : Lavf56.4.101
    
07-14 22:30:35.963: D/ffmpeg(30354):     Stream #0:0(eng): Video: h264 (libx264), yuv420p, 720x960 [SAR 4:3 DAR 1:1], q=-1--1, 29.97 fps, 90k tbn, 29.97 tbc (default)
    
07-14 22:30:35.963: D/ffmpeg(30354):     Metadata:
    
07-14 22:30:35.963: D/ffmpeg(30354):       handler_name    : VideoHandle
    
07-14 22:30:35.963: D/ffmpeg(30354):       creation_time   : 2015-07-15 05:30:32
    
07-14 22:30:35.963: D/ffmpeg(30354):       rotate          : 0
    
07-14 22:30:35.963: D/ffmpeg(30354):       encoder         : Lavc56.1.100 libx264
    
07-14 22:30:35.963: D/ffmpeg(30354):     Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, 151 kb/s (default)
    
07-14 22:30:35.963: D/ffmpeg(30354):     Metadata:
    
07-14 22:30:35.963: D/ffmpeg(30354):       creation_time   : 2015-07-15 05:30:32
    
07-14 22:30:35.963: D/ffmpeg(30354):       handler_name    : SoundHandle
    
07-14 22:30:35.963: D/ffmpeg(30354): Stream mapping:
    
07-14 22:30:35.963: D/ffmpeg(30354):   Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
07-14 22:30:35.963: D/ffmpeg(30354):   Stream #0:1 -> #0:1 (copy)
    
07-14 22:30:35.963: D/ffmpeg(30354): Press [q] to stop, [?] for help
    
07-14 22:30:35.963: D/ffmpeg(30354): frame=   17 fps=0.0 q=27.0 size=       0kB time=00:00:00.36 bitrate=   0.0kbits/s    
    
07-14 22:30:35.963: D/ffmpeg(30354): frame=   33 fps= 32 q=27.0 size=     164kB time=00:00:01.15 bitrate=1163.1kbits/s    
    
07-14 22:30:35.963: D/ffmpeg(30354): frame=   46 fps= 30 q=29.0 size=     213kB time=00:00:01.33 b

  • Strange libavformat dependency with Jackmp

    13 avril 2015, par Martin Delille

    I try to execute my application on another Mac than my development machine and I have the following error :

    Dyld Error Message:
    
    Library not loaded: /System/Library/Framework/Versions/A/Jackmp
    
    Referenced from: /Volumes/FFmpegTest_v1.0.1/FFmpegTest.app/Contents/Frameworks/libavformat.56.dylib

    It seems that this Jackmp library is a new dependency (not present in earlier libavformat dependencies) as I can check with :

    otool -L /usr/local/lib/libavformat.dylib

    Any idea ?

  • java.lang.NoClassDefFoundError : Could not initialize class on Linux (Works fine on Windows)

    26 décembre 2016, par Jake Miller

    I’m using a C++ FFmpeg wrapper for Java (org.bytedeco.javacpp). This works perfectly on a Windows machine (my development machine) but throws this error when ran on Linux (Amazon Web Services Elastic Beanstalk) :

    java.lang.NoClassDefFoundError: Could not initialize class org.bytedeco.javacpp.avutil
    
    at java.lang.Class.forName0(Native Method) ~[na:1.8.0_111]
    
    at java.lang.Class.forName(Class.java:348) ~[na:1.8.0_111]
    
    at org.bytedeco.javacpp.Loader.load(Loader.java:472) ~[javacpp-1.2.1.jar!/:1.2.1]
    
    at org.bytedeco.javacpp.Loader.load(Loader.java:417) ~[javacpp-1.2.1.jar!/:1.2.1]
    
    at org.bytedeco.javacpp.avformat$AVFormatContext.<clinit>(avformat.java:2819) ~[ffmpeg-3.2.1-1.3.jar!/:1.2.1]
    
    at org.bytedeco.javacv.FFmpegFrameGrabber.startUnsafe(FFmpegFrameGrabber.java:391) ~[javacv-1.3.jar!/:1.3]
    
    at org.bytedeco.javacv.FFmpegFrameGrabber.start(FFmpegFrameGrabber.java:385) ~[javacv-1.3.jar!/:1.3]
    
</clinit>

    I’ve been troubleshooting for the past 2 days and have tried the following to fix the issue :

    • upgrade to Linux to 2.4
    • downgrading javacpp to 1.2.1
    • running mvn clean
    • running mvn -U
    • deleting contents of /.m2/ and redownloading dependencies
    • various combinations of dependency versions
    • git clone on a Linux VM & running mvn install there

    When looking further into the issue, I stumbled upon documentation for avformat$AVFormatContext as it’s in the stack trace posted above (6th line). The documentation for a C++ class named AVFormatContext. Whenever I attempt to view the class in Eclipse, it says Source Not Found.

    My question : could this problem possibly be caused by the C++ libraries on my Linux VM ? None of the above solutions fixed it so this is my only hypothesis as of now.

    Here’s my other Stack Overflow question regarding this subject : Java.lang.NoClassDefFoundError caused by FFmpeg when deployed on Linux as a packaged .war (Works on development machine)

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