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Support de tous types de médias
10 avril 2011Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)
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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.
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Support audio et vidéo HTML5
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Sur d’autres sites (10503)
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Error of FFmpeg on Java in "av_image_copy_to_buffer" method during decoding H.264 stream
26 mai 2020, par maru2213I'm trying to decode H.264 stream, which is sent over Socket from an Android application to a computer. And I also want to show the decoded stream using JavaFX. I searched for a long time, and decided to use JavaCV / FFmpeg. However I got error from FFmpeg. (I was inspired by this code.)



Questions :



- 

- Why does FFmpeg make error ?
- Is it a correct way to convert
AVFrametojavafx.scene.image.Image?







I'm using :



- 

- javacv-platform 1.4.4
- ffmpeg-platform 4.1-1.4.4







Code :



This is a part of import and class fields, and method which runs once at the first time. (Actually the content of
initialize()is wrapped by try catch.)


import javafx.scene.image.Image;

 private avcodec.AVCodec avCodec;
 private avcodec.AVCodecContext avCodecContext;
 private avutil.AVDictionary avDictionary;
 private avutil.AVFrame avFrame;

 public void initialize() {
 avCodec = avcodec_find_decoder(AV_CODEC_ID_H264);
 if (avCodec == null) {
 throw new RuntimeException("Can't find decoder");
 }
 avCodecContext = avcodec_alloc_context3(avCodec);
 if (avCodecContext == null) {
 throw new RuntimeException("Can't allocate decoder context");
 }
 int result = avcodec_open2(avCodecContext, avCodec, (AVDictionary) null);
 if (result < 0) {
 throw new RuntimeException("Can't open decoder");
 }
 avFrame = av_frame_alloc();
 if (avFrame == null) {
 throw new RuntimeException("Can't allocate frame");
 }
 }



And this is a method which is called every time when I receive a packet from Android.
byte[] datais the packet data starting with0x00,0x00,0x00,0x01.


The place where I get error is
number_of_written_bytes. It always gets <0.


private void decode(byte[] data) {
 AVPacket avPacket = new AVPacket();
 av_init_packet(avPacket);
 avPacket.pts(AV_NOPTS_VALUE);
 avPacket.dts(AV_NOPTS_VALUE);
 BytePointer bytePointer = new BytePointer(data);
 bytePointer.capacity(data.length);
 avPacket.data(bytePointer);
 avPacket.size(data.length);
 avPacket.pos(-1);

 avcodec_send_packet(avCodecContext, avPacket);
 int result = avcodec_receive_frame(avCodecContext, avFrame);
 if (result >= 0) {
 int bufferOutputSize = av_image_get_buffer_size(avFrame.format(), avFrame.width(), avFrame.height(), 16);
 Pointer pointer = av_malloc(bufferOutputSize);
 BytePointer outputPointer = new BytePointer(pointer);
 int number_of_written_bytes = av_image_copy_to_buffer(outputPointer, bufferOutputSize, avFrame.data(), avFrame.linesize(), avFrame.chroma_location(), avFrame.width(), avFrame.height(), 1);
 if (number_of_written_bytes < 0) {
 //The process always come here.
 throw new RuntimeException("Can't copy image to buffer");
 }

 System.out.println("decode success");
 Image image = new Image(new ByteArrayInputStream(outputPointer.asBuffer().array()));
 } else {
 System.out.println("decode failed");
 }
 }



Anything is helpful for me. Thanks.


-
Fatal Exception : java.lang.UnsatisfiedLinkError lopen failed : library name "/data/packagename/lib/arm64/libmobileffmpeg_abidetect.so" too long
23 septembre 2020, par Android198Fatal Exception: java.lang.UnsatisfiedLinkError lopen failed: library name "/data/packagename/lib/arm64/libmobileffmpeg_abidetect.so" too long 


I got this error in android 5 devices because my app packagename is too long. i build apk with abi filters
armeabi-v7a,arm64-v8a

'java.lang.System.loadLibrary (System.java:989)
 com.arthenica.mobileffmpeg.AbiDetect.<clinit> (AbiDetect.java)
 com.arthenica.mobileffmpeg.AbiDetect.getNativeAbi (AbiDetect.java)
 com.arthenica.mobileffmpeg.AbiDetect.setArmV7aNeonLoaded (AbiDetect.java)
 com.arthenica.mobileffmpeg.Config.enableLogCallback (Config.java:5)'
</clinit>

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FFMPEG, macOS Catalina : "ffmpeg stderr : /private/tmp/com.apple.launchd.ID/org.macosforge.xquartz:0 : Operation not supported on socket"
11 février 2021, par Bogdan SlyusarenkoI'm trying to record selenium test run with FFMPEG, for automation testing of web extensions (selenium+js/ts).
FFMPEG initiated by command :


const { spawn } = require("child_process");
 ffmpeg = spawn("ffmpeg", [
 "-x265-params",
 "-f",
 "xcbgrab", 
 "-video_size",
 "1280x1024", 
 "-i",
 process.env.DISPLAY, // "/private/tmp/com.apple.launchd.ID/org.macosforge.xquartz:0"
 "-loglevel",
 "debug", 
 "-y", 
 "-pix_fmt",
 "yuv420p",
 videoPath, 
 ]);


Return constantly error,related to process.DISPLAY, I'm not sure why it's so :


ffmpeg stderr: /private/tmp/com.apple.launchd.W851FkeNXz/org.macosforge.xquartz:0: Operation not supported on socket


Full debug login is :


ffmpeg stderr: ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
ffmpeg stderr: built with Apple clang version 12.0.0 (clang-1200.0.32.28)
ffmpeg stderr: configuration: --prefix=/usr/local/Cellar/ffmpeg/4.3.1_9 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack
ffmpeg stderr: libavutil 56. 51.100 / 56. 51.100
ffmpeg stderr: libavcodec 58. 91.100 / 58. 91.100
ffmpeg stderr: libavformat 58. 45.100 / 58. 45.100
ffmpeg stderr: libavdevice 58. 10.100 / 58. 10.100
ffmpeg stderr: libavfilter 7. 85.100 / 7. 85.100
ffmpeg stderr: libavresample 4. 0. 0 / 4. 0. 0
ffmpeg stderr: libswscale 5. 7.100 / 5. 7.100
ffmpeg stderr: libswresample 3. 7.100 / 3. 7.100
ffmpeg stderr: libpostproc 55. 7.100 / 55. 7.100
ffmpeg stderr: Splitting the commandline.
ffmpeg stderr: Reading option '-x265-params' ...
ffmpeg stderr: matched as AVOption 'x265-params' with argument '-f'.
ffmpeg stderr: Reading option 'xcbgrab' ...
ffmpeg stderr: matched as output url.
ffmpeg stderr: Reading option '-video_size' ...
ffmpeg stderr: matched as AVOption 'video_size' with argument '1280x1024'.
ffmpeg stderr: Reading option '-i' ... matched as input url with argument '/private/tmp/com.apple.launchd.W851FkeNXz/org.macosforge.xquartz:0'.
ffmpeg stderr: Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'.
ffmpeg stderr: Reading option '-y' ...
ffmpeg stderr: matched as option 'y' (overwrite output files) with argument '1'.
ffmpeg stderr: Reading option '-pix_fmt' ... matched as option 'pix_fmt' (set pixel format) with argument 'yuv420p'.
ffmpeg stderr: Reading option '/Volumes/MacHD2/Upprojects/TEST/log/Checkout-Google.com-Search-on-Google.mp4' ... matched as output url.
ffmpeg stderr: Finished splitting the commandline.
ffmpeg stderr: Parsing a group of options: global .
ffmpeg stderr: Applying option loglevel (set logging level) with argument debug.
ffmpeg stderr: Applying option y (overwrite output files) with argument 1.
ffmpeg stderr: Successfully parsed a group of options.
ffmpeg stderr: Parsing a group of options: input url /private/tmp/com.apple.launchd.W851FkeNXz/org.macosforge.xquartz:0.
ffmpeg stderr: Successfully parsed a group of options.
ffmpeg stderr: Opening an input file: /private/tmp/com.apple.launchd.W851FkeNXz/org.macosforge.xquartz:0.
ffmpeg stderr: [NULL @ 0x7fcf80016800] Opening '/private/tmp/com.apple.launchd.W851FkeNXz/org.macosforge.xquartz:0' for reading
ffmpeg stderr: [file @ 0x7fcf7f507a00] Setting default whitelist 'file,crypto,data'
ffmpeg stderr: /private/tmp/com.apple.launchd.W851FkeNXz/org.macosforge.xquartz:0: Operation not supported on socket



Any feedback appreciated


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