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Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...) -
Organiser par catégorie
17 mai 2013, parDans MédiaSPIP, une rubrique a 2 noms : catégorie et rubrique.
Les différents documents stockés dans MédiaSPIP peuvent être rangés dans différentes catégories. On peut créer une catégorie en cliquant sur "publier une catégorie" dans le menu publier en haut à droite ( après authentification ). Une catégorie peut être rangée dans une autre catégorie aussi ce qui fait qu’on peut construire une arborescence de catégories.
Lors de la publication prochaine d’un document, la nouvelle catégorie créée sera proposée (...)
Sur d’autres sites (4622)
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Segmentation Fault when running ffmpeg+sdl program
23 juin 2015, par user2270995I started with Dranger’s tutorials on building a video player using FFMPEG and SDL. The code tutorial4 compiles fine but when i run it i get a segmentation fault error. here’s the code for tutorial4.
I am using gcc
Apple LLVM version 6.1.0 (clang-602.0.49) (based on LLVM 3.6.0svn)
Target: x86_64-apple-darwin14.3.0
Thread model: posixon Mac 10.10.3.
Here’s GDB Backtrace :
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x1813 of process 84136]
0x00007fff955d4432 in stack_not_16_byte_aligned_error ()
from /usr/lib/system/libdyld.dylib
(gdb) backtrace
#0 0x00007fff955d4432 in stack_not_16_byte_aligned_error ()
from /usr/lib/system/libdyld.dylib
#1 0x000000010a2f1ee0 in ?? ()
#2 0x0000000101341008 in ?? () from /usr/local/lib/libSDL-1.2.0.dylib
#3 0x00000000000005d0 in ?? ()
#4 0x00000001013362e9 in RunThread () from /usr/local/lib/libSDL-1.2.0.dylib
#5 0x00000001013362e2 in RunThread () from /usr/local/lib/libSDL-1.2.0.dylib
#6 0x00007fff8d1d4268 in ?? () from /usr/lib/system/libsystem_pthread.dylib
#7 0x0000000000006f23 in ?? ()
#8 0x000000010a2f2000 in ?? ()
#9 0x000000010a2f1f50 in ?? ()
#10 0x00007fff8d1d41e5 in ?? () from /usr/lib/system/libsystem_pthread.dylib
#11 0x0000000000000000 in ?? ()
(gdb)Backtrace for another SIGSEGV :
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x15eb of process 11453]
0x00000001012c9475 in av_log_format_line ()
from /usr/local/lib/libavutil.54.dylib
(gdb) bt
#0 0x00000001012c9475 in av_log_format_line ()
from /usr/local/lib/libavutil.54.dylib
#1 0x00000001012f7338 in av_pix_fmt_descriptors ()
from /usr/local/lib/libavutil.54.dylib
#2 0x00000018012f7358 in ?? ()
#3 0x000000010a2f3010 in ?? ()
#4 0x000000010a2f2c10 in ?? ()
#5 0x000000010011d65a in ?? () from /usr/local/lib/libavformat.56.dylib
#6 0x000000010a2f3900 in ?? ()
#7 0x0000000000000018 in ?? ()
#8 0x0000000000000018 in ?? ()
#9 0x000000010011d65a in ?? () from /usr/local/lib/libavformat.56.dylib
#10 0x000000010a2f3900 in ?? ()
#11 0x910016d093cdc267 in ?? ()
#12 0x000000010a2f3eb0 in ?? ()
#13 0x00000001012c96e8 in av_log_default_callback ()
from /usr/local/lib/libavutil.54.dylib
#14 0x0000000000000000 in ?? ()
(gdb)The call to
SDL_WaitEventin main method is where these errors occur in my debugging.for(;;) {
SDL_WaitEvent(&event);
switch(event.type) {
case FF_QUIT_EVENT:
case SDL_QUIT:
is->quit = 1;
SDL_Quit();
return 0;
break;
case FF_REFRESH_EVENT:
video_refresh_timer(event.user.data1);
break;
default:
break;
}
}is this related to pthread library or sdl And how do i resolve it ?
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ffmpeg armv7s compile segmentation fault
13 mai 2015, par Sergey92zpI use https://github.com/kewlbear/FFmpeg-iOS-build-script to compile ffmpeg,
but when i try to compile, for armv7s architecture i have next errorall other archs compile fine
clang : error : unable to execute command : Segmentation fault : 11 clang :
error : clang frontend command failed due to signal (use -v to see
invocation) Apple LLVM version 6.1.0 (clang-602.0.49) (based on LLVM
3.6.0svn) Target : arm-apple-darwin14.3.0 Thread model : posix clang : note : diagnostic msg : PLEASE submit a bug report to
http://developer.apple.com/bugreporter/ and include the crash
backtrace, preprocessed source, and associated run script. clang :
note : diagnostic msg :
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT : Preprocessed
source(s) and associated run script(s) are located at : clang : note :
diagnostic msg :
/var/folders/zk/wj2cn08s26x64nlzk3_kjnv80000gn/T/vp8-c6ec27.c clang :
note : diagnostic msg :
/var/folders/zk/wj2cn08s26x64nlzk3_kjnv80000gn/T/vp8-c6ec27.sh clang :
note : diagnostic msg :******************** make : * [libavcodec/vp8.o] Error 254 make : * Waiting for unfinished jobs.... CC libavcodec/wmv2enc.o
Couple months ago all compiled without any errors.
Tried on couple versions of ffmpegHere is Clang -v
Apple LLVM version 6.1.0 (clang-602.0.49) (based on LLVM 3.6.0svn)
Target : x86_64-apple-darwin14.3.0 Thread model : posixand xcode version is Version 6.3.1 (6D1002)
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Unable to integrate ffmpeg as a native dependency for an Android NDK project
28 février 2019, par mmarkI have an Android NDK project which consists entirely of C/C++ code, and it basically processes images without using any external libraries.
I’m using Android Studio + Gradle NDK Experimental plugin (0.7.0-alpha1).
Now, I need to integrate ffmpeg as a native library to use it from the C/C++ code in order to decode a H.264 video frame.
These are the questions I’ve found here regarding this issue :
Android - Integrating ffmpeg and android-ndk-r9c
Android NDK w/ ffmpeg library - error running project
Using FFmpeg native libraries with Android-NDK
Can not build with prebuilt static libraries using gradle-experimental
Here is my build.gradle file :
apply plugin: 'com.android.model.application'
def ffmpeg_path = file(project(':ffmpeg').projectDir).absolutePath + "/ffmpeg-android"
model {
repositories {
libs(PrebuiltLibraries) {
libavcodec {
headers.srcDir "${ffmpeg_path}/include"
binaries.withType(StaticLibraryBinary) {
staticLibraryFile = file("${ffmpeg_path}/${targetPlatform.getName()}/lib/libavcodec.a")
}
}
libavutil {
headers.srcDir "${ffmpeg_path}/include"
binaries.withType(StaticLibraryBinary) {
staticLibraryFile = file("${ffmpeg_path}/${targetPlatform.getName()}/lib/libavutil.a")
}
}
libswresample {
headers.srcDir "${ffmpeg_path}/include"
binaries.withType(StaticLibraryBinary) {
staticLibraryFile = file("${ffmpeg_path}/${targetPlatform.getName()}/lib/libswresample.a")
}
}
libswscale {
headers.srcDir "${ffmpeg_path}/include"
binaries.withType(StaticLibraryBinary) {
staticLibraryFile = file("${ffmpeg_path}/${targetPlatform.getName()}/lib/libswscale.a")
}
}
libavformat {
headers.srcDir "${ffmpeg_path}/include"
binaries.withType(StaticLibraryBinary) {
staticLibraryFile = file("${ffmpeg_path}/${targetPlatform.getName()}/lib/libavformat.a")
}
}
libavdevice {
headers.srcDir "${ffmpeg_path}/include"
binaries.withType(StaticLibraryBinary) {
staticLibraryFile = file("${ffmpeg_path}/${targetPlatform.getName()}/lib/libavdevice.a")
}
}
libavfilter {
headers.srcDir "${ffmpeg_path}/include"
binaries.withType(StaticLibraryBinary) {
staticLibraryFile = file("${ffmpeg_path}/${targetPlatform.getName()}/lib/libavfilter.a")
}
}
libpostproc {
headers.srcDir "${ffmpeg_path}/include"
binaries.withType(StaticLibraryBinary) {
staticLibraryFile = file("${ffmpeg_path}/${targetPlatform.getName()}/lib/libpostproc.a")
}
}
}
}
android {
compileSdkVersion = 23
buildToolsVersion = "23.0.2"
defaultConfig.with {
applicationId = "com.example.hellojni"
minSdkVersion.apiLevel = 4
targetSdkVersion.apiLevel = 23
}
}
/*
* native build settings
*/
android.ndk {
moduleName = "hello-jni"
platformVersion = 9 //same as minSdkVersion.apiLevel for better compatibility
stl = "c++_static"
abiFilters.addAll(["armeabi", "armeabi-v7a", "x86"]) //filtering ABIs on the ones Google Play Games library is compatible with.
}
android.buildTypes {
release {
minifyEnabled = false
proguardFiles.add(file('proguard-rules.txt'))
}
}
android.sources {
main {
jni {
dependencies {
library "libavcodec" linkage "static"
library "libavutil" linkage "static"
library "libswresample" linkage "static"
library "libswscale" linkage "static"
library "libavformat" linkage "static"
library "libavdevice" linkage "static"
library "libavfilter" linkage "static"
library "libpostproc" linkage "static"
}
}
}
}
}I based on this sample from Google which integrates an external native library.
This is the ffmpeg project I compiled before importing it into mine :
https://github.com/WritingMinds/ffmpeg-androidI’ve added all the .a and .h files and I’m able to import the headers in my C/C++ code, but when I try to compile it I get the following error :
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(utils.o):utils.c:function try_decode_frame: error: undefined reference to 'avpriv_h264_has_num_reorder_frames'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(utils.o):utils.c:function compute_pkt_fields: error: undefined reference to 'avpriv_h264_has_num_reorder_frames'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(utils.o):utils.c:function parse_packet: error: undefined reference to 'av_parser_parse2'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(utils.o):utils.c:function parse_packet: error: undefined reference to 'av_parser_close'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(utils.o):utils.c:function read_frame_internal: error: undefined reference to 'av_parser_init'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(utils.o):utils.c:function avformat_find_stream_info: error: undefined reference to 'av_parser_init'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(utils.o):utils.c:function avformat_find_stream_info: error: undefined reference to 'avcodec_pix_fmt_to_codec_tag'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(utils.o):utils.c:function avformat_find_stream_info: error: undefined reference to 'avpriv_get_raw_pix_fmt_tags'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(utils.o):utils.c:function ff_stream_add_bitstream_filter: error: undefined reference to 'av_bitstream_filter_init'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(utils.o):utils.c:function ff_stream_add_bitstream_filter: error: undefined reference to 'av_bitstream_filter_close'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(utils.o):utils.c:function av_apply_bitstream_filters: error: undefined reference to 'av_bitstream_filter_filter'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(aadec.o):aadec.c:function aa_read_packet: error: undefined reference to 'av_tea_init'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(aadec.o):aadec.c:function aa_read_packet: error: undefined reference to 'av_tea_crypt'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(aadec.o):aadec.c:function aa_read_header: error: undefined reference to 'av_tea_alloc'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(aadec.o):aadec.c:function aa_read_header: error: undefined reference to 'av_tea_init'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(aadec.o):aadec.c:function aa_read_header: error: undefined reference to 'av_tea_crypt'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(ac3dec.o):ac3dec.c:function ac3_eac3_probe.isra.0: error: undefined reference to 'avpriv_ac3_parse_header'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(adtsenc.o):adtsenc.c:function adts_write_header: error: undefined reference to 'avpriv_mpeg4audio_get_config'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(adtsenc.o):adtsenc.c:function adts_write_header: error: undefined reference to 'avpriv_copy_pce_data'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(asfcrypt.o):asfcrypt.c:function ff_asfcrypt_dec: error: undefined reference to 'av_rc4_alloc'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(asfcrypt.o):asfcrypt.c:function ff_asfcrypt_dec: error: undefined reference to 'av_rc4_init'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(asfcrypt.o):asfcrypt.c:function ff_asfcrypt_dec: error: undefined reference to 'av_rc4_crypt'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(asfcrypt.o):asfcrypt.c:function ff_asfcrypt_dec: error: undefined reference to 'av_rc4_init'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(asfcrypt.o):asfcrypt.c:function ff_asfcrypt_dec: error: undefined reference to 'av_rc4_crypt'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(matroska.o):matroska.c:function ff_mkv_stereo3d_conv: error: undefined reference to 'av_stereo3d_alloc'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(nut.o):nut.c:function ff_nut_add_sp: error: undefined reference to 'av_tree_node_alloc'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(nut.o):nut.c:function ff_nut_add_sp: error: undefined reference to 'av_tree_insert'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(nut.o):nut.c:function ff_nut_free_sp: error: undefined reference to 'av_tree_enumerate'
/Users/marcos/Documents/Android/fdecoder/ffmpeg/ffmpeg-android/armeabi-v7a/lib/libavformat.a(nut.o):nut.c:function ff_nut_free_sp: error: undefined reference to 'av_tree_destroy'
Error:error: ld returned 1 exit status
Error:Execution failed for task ':app:linkHello-jniArmeabi-v7aDebugSharedLibrary'.
> A build operation failed.
Linker failed while linking libhello-jni.so.
See the complete log at: file:///Users/marcos/Documents/Android/fdecoder/app/build/tmp/linkHello-jniArmeabi-v7aDebugSharedLibrary/output.txt
Information:BUILD FAILED
Information:Total time: 14.993 secs
Information:2 errors
Information:0 warnings
Information:See complete output in consoleThere’s obviously something I’m not importing properly, but can’t figure exactly what’s missing.
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