Recherche avancée
Autres articles (47)
-
Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...)
Sur d’autres sites (9023)
-
Why storage access functions not working on android 10 API-29 ? error=13, Permission denied ?
8 janvier 2021, par Rpatel

This example code is to create video from images and music.
Code running on till API level 28 but when I just upgrade to
Build version 29 then it starts crashing. I tried the most solution
but could not find the proper reason and solution.

Please let me know...



2


021-01-08 19:48:16.045 18413-19578/com.example.photovideomaker E/audio: io
 java.io.IOException: Cannot run program "/data/user/0/com.example.photovideomaker/files/ffmpeg": error=13, Permission denied
 at java.lang.ProcessBuilder.start(ProcessBuilder.java:1050)
 at java.lang.Runtime.exec(Runtime.java:698)
 at java.lang.Runtime.exec(Runtime.java:563)
 at com.example.photovideomaker.service.CreateVideoService.joinAudio(CreateVideoService.java:252)
 at com.example.photovideomaker.service.CreateVideoService.createVideo(CreateVideoService.java:89)
 at com.example.photovideomaker.service.CreateVideoService.onHandleIntent(CreateVideoService.java:83)
 at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:78)
 at android.os.Handler.dispatchMessage(Handler.java:107)
 at android.os.Looper.loop(Looper.java:214)
 at android.os.HandlerThread.run(HandlerThread.java:67)
 Caused by: java.io.IOException: error=13, Permission denied
 at java.lang.UNIXProcess.forkAndExec(Native Method)
 at java.lang.UNIXProcess.<init>(UNIXProcess.java:133)
 at java.lang.ProcessImpl.start(ProcessImpl.java:141)
 at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
 at java.lang.Runtime.exec(Runtime.java:698) 
 at java.lang.Runtime.exec(Runtime.java:563) 
 at com.example.photovideomaker.service.CreateVideoService.joinAudio(CreateVideoService.java:252) 
 at com.example.photovideomaker.service.CreateVideoService.createVideo(CreateVideoService.java:89) 
 at com.example.photovideomaker.service.CreateVideoService.onHandleIntent(CreateVideoService.java:83) 
 at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:78) 
 at android.os.Handler.dispatchMessage(Handler.java:107) 
 at android.os.Looper.loop(Looper.java:214) 
 at android.os.HandlerThread.run(HandlerThread.java:67) 
</init>



This function throwing the error "On Process.runtime"




private void createVideo() {
 long startTime = System.currentTimeMillis();
 toatalSecond = (application.getSecond() * ((float) application.getSelectedImages().size())) - DEFAULT_FONT_SCALE;
 joinAudio();
 while (true) {
 if (ImageCreatorService.isImageComplate) {
 Log.e("image creation ", " complte");

 break;
 }else {
 Log.e("image creation ", "not complte");
 }
 }
 Log.e("createVideo", "video create start");
 new File(FileUtils.TEMP_DIRECTORY, "video.txt").delete();
 for (int i = 0; i < application.videoImages.size(); i++) {
 appendVideoLog(String.format("file '%s'", application.videoImages.get(i)));
 }

 File r0=new File(FileUtils.TEMP_DIRECTORY, "video.txt");
 String videoPath = new File(FileUtils.APP_DIRECTORY, getVideoName()).getAbsolutePath();
 String[] inputCode = application.getMusicData() != null ? new String[]{
 FileUtils.getFFmpeg(this), "-r",
 String.valueOf(BitmapDescriptorFactory.HUE_ORANGE / application.getSecond()),
 "-f", "concat", "-safe", "0", "-i", r0.getAbsolutePath(), "-i",
 audioFile.getAbsolutePath(), "-strict", "experimental", "-r", "30",
 "-t", String.valueOf(toatalSecond), "-c:v", "libx264", "-preset",
 "ultrafast", "-pix_fmt", "yuv420p", "-ac", "2", videoPath}
 : new String[]{FileUtils.getFFmpeg(this),
 "-r", String.valueOf(BitmapDescriptorFactory.HUE_ORANGE / application.getSecond()),
 "-f", "concat", "-i", r0.getAbsolutePath(), "-r", "30", "-c:v", "libx264", "-preset", "ultrafast", "-pix_fmt", "yuv420p", videoPath};

 System.gc();
 Process process = null;
 try {
 process = Runtime.getRuntime().exec(inputCode);
 while (!Util.isProcessCompleted(process)) {
 BufferedReader reader = new BufferedReader(new InputStreamReader(process.getErrorStream()));
 while (true) {
 String line = reader.readLine();
 if (line != null) {
 Log.e("process", line);
 appendLog(line);
 final int incr = durationToprogtess(line);
 new Handler(Looper.getMainLooper()).post(new Runnable() {
 public void run() {
 if (receiver != null) {
 receiver.onVideoProgressUpdate(incr);
 }
 }
 });
 mBuilder.setProgress(100, ((int) ((75.0f * ((float) incr)) / 100.0f)) + 25, false);
 mNotifyManager.notify(1001, mBuilder.build());
 }else {
 break;
 }
 }
 }
 } catch (IOException e) {
 e.printStackTrace();
 } finally {
 Util.destroyProcess(process);
 }
 mBuilder.setContentText("Video created :" + FileUtils.getDuration(System.currentTimeMillis() - startTime)).setProgress(0, 0, false);
 mNotifyManager.notify(1001, mBuilder.build());
 try {
 long fileSize = new File(videoPath).length();
 String artist = getResources().getString(R.string.artist_name);
 ContentValues values = new ContentValues();
 values.put("_data", videoPath);
 values.put("_size", Long.valueOf(fileSize));
 values.put("mime_type", "video/mp4");
 values.put("artist", artist);
 values.put("duration", Float.valueOf(toatalSecond * 1000.0f));
 getContentResolver().insert(Media.getContentUriForPath(videoPath), values);
 } catch (Exception e2) {
 e2.printStackTrace();
 }
 try {
 sendBroadcast(new Intent("android.intent.action.MEDIA_SCANNER_SCAN_FILE", Uri.fromFile(new File(videoPath))));
 } catch (Exception e3) {
 e3.printStackTrace();
 }

 buildNotification(videoPath);
 final String str = videoPath;
 new Handler(Looper.getMainLooper()).post(new Runnable() {
 public void run() {
 if (receiver != null) {
 receiver.onVideoProgressUpdate(100);
 receiver.onProgressFinish(str);
 }
 }
 });
 FileUtils.deleteTempDir();
 stopSelf();
 }


I have tried checking the directory in storage and check mkdir is working or not but this function purely works for creating video from a collection of images, themes, and audio. as per android


-
Building ffmpeg libraries for third party usage
23 mars 2023, par mikeProgrammerI am trying to create bindings for FFmpeg in Elixir programming language and would love to handle FFmpeg binaries for users of my library.


The whole flow is as follows :


- 

- Write some function definition in Elixir
- Implement it in in C using ffmpeg libs
- Compile C code as shared library
- When running application, Erlang Virtual Machine will load my dynamic library










The question is how to compile and include ffmpeg libs in my shared lib so that users of my Elixir lib don't have to install any native dependencies.


Here is what I was trying :


- 

-
Compile ffmpeg libs as shared ones. When my Elixir lib is compiling, it downloads precompiled ffmpeg archive, extracts its content and links to it when compiling native functions. I realized that this still won't work as ffmpeg shared libs depend on other shared libs that user has to install on their own.


-
Compile ffmpeg libs as static ones and include them in my native shared library using —whole-archive linker option. Here I am getting








/usr/bin/ld : ffmpeg_build/lib/libavcodec.a(vp9lpf_16bpp.o) : warning : relocation against
ff_pw_1' in read-only section.text'
/usr/bin/ld : ffmpeg_build/lib/libavcodec.a(cavsdsp.o) : relocation R_X86_64_PC32 against symbol `ff_pw_5' can not be used when making a shared object ; recompile with -fPIC
/usr/bin/ld : final link failed : bad value
collect2 : error : ld returned 1 exit status

The command I am using


cc -fPIC -I/home/michal/.asdf/installs/erlang/25.1/erts-13.1/include -Iffmpeg_build/include -Ic_src/xav -shared -DXAV_DEBUG=1 c_src/xav/xav_nif.c c_src/xav/reader.c c_src/xav/utils.c -o /home/michal/Repos/xav/_build/test/lib/xav/priv/libxav.so -Lffmpeg_build/lib -Wl,--whole-archive -lavcodec -lswscale -lavutil -lavformat -Wl,--no-whole-archive


FFmpeg configuration


./configure \
--prefix="$PWD/ffmpeg_build" \
--extra-cflags="-fPIC -I$PWD/ffmpeg_build/include" \
--extra-ldflags="-L$PWD/ffmpeg_build/lib" \
--enable-pic
--disable-programs


Does anything that I am trying to do make sense to you ?


When I am installing ffmpeg-libs package on Fedora, it depends on other shared libs that are automatically downlaoded but what I would love to achieve is to provide self-contained ffmpeg build that can be used in other shared libraries.


-
OpenCV in Python on Windows does not report correct video properties from VideoReader
24 décembre 2015, par Mircea DavidescuI am running into a problem with using VideoReader in OpenCV with Python. Many of the properties that I should be able to get from the video reader are either somehow invalid (returning 0), or return the wrong number. For instance.
vidFile = cv2.VideoCapture('movie.avi')
vidFile.get(cv2.CAP_PROP_FRAME_COUNT)
vidFile.get(cv2.CAP_PROP_FPS)The first get command returns a wrong value, while the second get command returns 0. The output of the
ffprobecommand is given below :built with gcc 5.2.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
--enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm
--enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus
--enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab
--enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265
--enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 5.100 / 55. 5.100
libavcodec 57. 12.100 / 57. 12.100
libavformat 57. 11.100 / 57. 11.100
libavdevice 57. 0.100 / 57. 0.100
libavfilter 6. 14.101 / 6. 14.101
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.100 / 2. 0.100
libpostproc 54. 0.100 / 54. 0.100
Input #0, avi, from 'movie.avi':
Metadata:
encoder : Lavf55.0.100
Duration: 00:31:59.97, start: 0.000000, bitrate: 24321 kb/s
Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj420p(pc, bt470bg/unknown/unknown), 1392x1040 [SAR 1:1 DAR 87:65], 24316 kb/s, 30 fps, 30 tbr, 30 tbn,
30 tbcI am running a Windows 10 machine with Python 2.7.11 (Anaconda 2.4.1 64-bit). I have installed OpenCV 3.0.0 according the instructions provided here. Because I am using the VideoReader feature I also added C :\opencv\sources\3rdparty\ffmpeg to the system PATH and renamed both opencv_ffmpeg300.dll and opencv_ffmpeg_x64.dll to opencv_ffmpeg300.dll and opencv_ffmpeg300_64.dll respectively, as specified here.
Thank you for your help with this problem !
Syndiquer tout le site
