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Autres articles (29)
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La sauvegarde automatique de canaux SPIP
1er avril 2010, parDans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...) -
Script d’installation automatique de MediaSPIP
25 avril 2011, parAfin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
La documentation de l’utilisation du script d’installation (...) -
Automated installation script of MediaSPIP
25 avril 2011, parTo overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
The documentation of the use of this installation script is available here.
The code of this (...)
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Gsteamer rtp video mixer, found a working pipeline, however need improvement
8 février 2015, par alkberI’m attempting to mix multiple rtp h264 payload video streams into a single video stream of 15FPS.
A working pipeline that mixes two video streams over a videotestsource pattern of 15FPS
VIDEO_CAPS="application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)H264"
gst-launch -vvvve videomixer2 name=mix ! ffmpegcolorspace ! xvimagesink
udpsrc caps=$VIDEO_CAPS port=3030 ! .recv_rtp_sink_0 gstrtpbin ! rtph264depay ! ffdec_h264 ! videoscale ! video/x-raw-yuv , width=176, height=144 ! videobox top=0 left=0 ! video/x-raw-yuv,format=\(fourcc\)AYUV ! ffmpegcolorspace ! mix.
udpsrc caps=$VIDEO_CAPS port=6666 ! .recv_rtp_sink_0 gstrtpbin ! rtph264depay ! ffdec_h264 ! videoscale ! video/x-raw-yuv , width=176, height=144 ! videobox top=0 left=-178 ! video/x-raw-yuv,format=\(fourcc\)AYUV ! ffmpegcolorspace ! mix.
videotestsrc ! video/x-raw-yuv, framerate=15/1, width=640, height=360 ! mix.Above pipeline has a strange issue, When attempting to mix, the first video source goes blank, (i’m certain that there is still streaming going on for the first video source, however it doesn’t turn up. Rather second video stream is shown. The verbose is given below.
Verbose for the above pipeline
/GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)640, height=(int)360, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, color-matrix=(string)sdtv
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)640, height=(int)360, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, color-matrix=(string)sdtv
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)640, height=(int)360, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, color-matrix=(string)sdtv
/GstPipeline:pipeline0/GstVideoMixer2:mix.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)640, height=(int)360, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1
/GstPipeline:pipeline0/GstVideoMixer2:mix.GstVideoMixer2Pad:sink_0: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)640, height=(int)360, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, color-matrix=(string)sdtv
/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpSession:rtpsession0.GstPad:recv_rtp_sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpBin:rtpbin0.GstGhostPad:recv_rtp_sink_0: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpBin:rtpbin0.GstGhostPad:recv_rtp_sink_0.GstProxyPad:proxypad0: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpSession:rtpsession0.GstPad:recv_rtp_src: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpSsrcDemux:rtpssrcdemux0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpJitterBuffer:rtpjitterbuffer0.GstPad:src: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpJitterBuffer:rtpjitterbuffer0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpBin:rtpbin1/GstRtpSession:rtpsession1.GstPad:recv_rtp_sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpBin:rtpbin1.GstGhostPad:recv_rtp_sink_0: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpBin:rtpbin1.GstGhostPad:recv_rtp_sink_0.GstProxyPad:proxypad1: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpBin:rtpbin1/GstRtpSession:rtpsession1.GstPad:recv_rtp_src: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpBin:rtpbin1/GstRtpSsrcDemux:rtpssrcdemux1.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpBin:rtpbin1/GstRtpJitterBuffer:rtpjitterbuffer1.GstPad:src: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpBin:rtpbin1/GstRtpJitterBuffer:rtpjitterbuffer1.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpBin:rtpbin0/GstRtpPtDemux:rtpptdemux0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpH264Depay:rtph264depay0.GstPad:src: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)nal
/GstPipeline:pipeline0/GstRtpH264Depay:rtph264depay0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, payload=(int)99
/GstPipeline:pipeline0/GstRtpBin:rtpbin0.GstGhostPad:recv_rtp_src_0_4186542290_99.GstProxyPad:proxypad2: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, payload=(int)99
/GstPipeline:pipeline0/ffdec_h264:ffdec_h2640.GstPad:sink: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)nal
/GstPipeline:pipeline0/GstRtpBin:rtpbin1/GstRtpPtDemux:rtpptdemux1.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264
/GstPipeline:pipeline0/GstRtpH264Depay:rtph264depay1.GstPad:src: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)nal
/GstPipeline:pipeline0/GstRtpH264Depay:rtph264depay1.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, payload=(int)99
/GstPipeline:pipeline0/GstRtpBin:rtpbin1.GstGhostPad:recv_rtp_src_0_4186622237_99.GstProxyPad:proxypad3: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, payload=(int)99
/GstPipeline:pipeline0/ffdec_h264:ffdec_h2641.GstPad:sink: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)nal
/GstPipeline:pipeline0/ffdec_h264:ffdec_h2640.GstPad:src: caps = video/x-raw-yuv, width=(int)176, height=(int)144, framerate=(fraction)15/1, format=(fourcc)I420, interlaced=(boolean)false
/GstPipeline:pipeline0/GstVideoScale:videoscale0.GstPad:src: caps = video/x-raw-yuv, width=(int)176, height=(int)144, framerate=(fraction)15/1, format=(fourcc)I420, interlaced=(boolean)false
/GstPipeline:pipeline0/GstVideoScale:videoscale0.GstPad:sink: caps = video/x-raw-yuv, width=(int)176, height=(int)144, framerate=(fraction)15/1, format=(fourcc)I420, interlaced=(boolean)false
/GstPipeline:pipeline0/GstCapsFilter:capsfilter1.GstPad:src: caps = video/x-raw-yuv, width=(int)176, height=(int)144, framerate=(fraction)15/1, format=(fourcc)I420, interlaced=(boolean)false
/GstPipeline:pipeline0/GstCapsFilter:capsfilter1.GstPad:sink: caps = video/x-raw-yuv, width=(int)176, height=(int)144, framerate=(fraction)15/1, format=(fourcc)I420, interlaced=(boolean)false
/GstPipeline:pipeline0/GstVideoBox:videobox0.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)176, height=(int)144, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false
/GstPipeline:pipeline0/GstVideoBox:videobox0.GstPad:sink: caps = video/x-raw-yuv, width=(int)176, height=(int)144, framerate=(fraction)15/1, format=(fourcc)I420, interlaced=(boolean)false
/GstPipeline:pipeline0/GstCapsFilter:capsfilter2.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)176, height=(int)144, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false
/GstPipeline:pipeline0/GstCapsFilter:capsfilter2.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)176, height=(int)144, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp1.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)176, height=(int)144, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp1.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)176, height=(int)144, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false
/GstPipeline:pipeline0/GstVideoMixer2:mix.GstVideoMixer2Pad:sink_1: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)176, height=(int)144, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false
/GstPipeline:pipeline0/ffdec_h264:ffdec_h2641.GstPad:src: caps = video/x-raw-yuv, width=(int)176, height=(int)144, framerate=(fraction)15/1, format=(fourcc)I420, interlaced=(boolean)false
/GstPipeline:pipeline0/GstVideoScale:videoscale1.GstPad:src: caps = video/x-raw-yuv, width=(int)176, height=(int)144, framerate=(fraction)15/1, format=(fourcc)I420, interlaced=(boolean)false
/GstPipeline:pipeline0/GstVideoScale:videoscale1.GstPad:sink: caps = video/x-raw-yuv, width=(int)176, height=(int)144, framerate=(fraction)15/1, format=(fourcc)I420, interlaced=(boolean)false
/GstPipeline:pipeline0/GstCapsFilter:capsfilter3.GstPad:src: caps = video/x-raw-yuv, width=(int)176, height=(int)144, framerate=(fraction)15/1, format=(fourcc)I420, interlaced=(boolean)false
/GstPipeline:pipeline0/GstCapsFilter:capsfilter3.GstPad:sink: caps = video/x-raw-yuv, width=(int)176, height=(int)144, framerate=(fraction)15/1, format=(fourcc)I420, interlaced=(boolean)false
/GstPipeline:pipeline0/GstVideoBox:videobox1.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)354, height=(int)144, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false
/GstPipeline:pipeline0/GstVideoBox:videobox1.GstPad:sink: caps = video/x-raw-yuv, width=(int)176, height=(int)144, framerate=(fraction)15/1, format=(fourcc)I420, interlaced=(boolean)false
/GstPipeline:pipeline0/GstCapsFilter:capsfilter4.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)354, height=(int)144, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false
/GstPipeline:pipeline0/GstCapsFilter:capsfilter4.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)354, height=(int)144, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp2.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)354, height=(int)144, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp2.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)354, height=(int)144, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false
/GstPipeline:pipeline0/GstVideoMixer2:mix.GstVideoMixer2Pad:sink_2: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)354, height=(int)144, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlaced=(boolean)false
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:src: caps = video/x-raw-yuv, format=(fourcc)YUY2, width=(int)640, height=(int)360, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1
/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)AYUV, width=(int)640, height=(int)360, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1
/GstPipeline:pipeline0/GstXvImageSink:xvimagesink0.GstPad:sink: caps = video/x-raw-yuv, format=(fourcc)YUY2, width=(int)640, height=(int)360, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1
WARNING: from element /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0: A lot of buffers are being dropped.
Additional debug info:
gstbasesink.c(2875): gst_base_sink_is_too_late (): /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0:
There may be a timestamping problem, or this computer is too slow.
I highly suspect it has something to with videobox.
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Fast video compression like Whatsapp
5 août 2015, par Douglas AnunciaçãoI need to speed up video compression in my Android app. I’m using FFMPEG and it takes 3 minutes to compress 80MB video. Does anyone knows a better solution ?
The command I’m using is :
/data/data/com.moymer/app_bin/ffmpeg -y -i /storage/emulated/0/DCIM/Camera/VID_20150803_164811363.mp4 -s 640x352 -r 25 -vcodec mpeg4 -ac 1 -preset ultrafast -strict -2 /storage/emulated/0/DCIM/Camera/compressed_video.mp4I’m running this command using FFMPEG for Android from this github repo : https://github.com/guardianproject/android-ffmpeg-java
The code to use FFMPEG in my project is inside an AsyncTask and is copied below :
@Override
protected Object doInBackground(Object... params) {
ItemRoloDeCamera compressedVideo = new ItemRoloDeCamera();
File videoInputFile = new File(video.getSdcardPath());
File videoFolderFile = videoInputFile.getParentFile();
File videoOutputFile = new File(videoFolderFile, "video_comprimido_moymer.mp4");
if (videoFolderFile.exists())
android.util.Log.e("COMPRESS VIDEO UTILS", "video folder exist");
else
android.util.Log.e("COMPRESS VIDEO UTILS", "video folder DON'T exist");
if (videoInputFile.exists())
android.util.Log.e("COMPRESS VIDEO UTILS", "video input file exist");
else
android.util.Log.e("COMPRESS VIDEO UTILS", "video input file DON'T exist");
if (videoOutputFile.exists())
android.util.Log.e("COMPRESS VIDEO UTILS", "video output file exist");
else
android.util.Log.e("COMPRESS VIDEO UTILS", "video output file DON'T exist");
FfmpegController ffmpegController;
try {
ffmpegController = new FfmpegController(context, videoFolderFile);
Clip clipIn = new Clip(videoInputFile.getAbsolutePath());
ffmpegController.getInfo(clipIn, new ShellUtils.ShellCallback() {
@Override
public void shellOut(String shellLine) {
videoInfo.add(shellLine);
}
@Override
public void processComplete(int exitValue) {
videoInfo.add(String.valueOf(exitValue));
}
});
int rotate = getRotateMetadata();
Clip clipOut = new Clip(videoOutputFile.getAbsolutePath());
clipOut.videoFps = "24";
clipOut.videoBitrate = 512;
clipOut.audioChannels = 1;
clipOut.width = 640;
clipOut.height = 352;
if (rotate == 90)
clipOut.videoFilter = "transpose=1";
else if (rotate == 180)
clipOut.videoFilter = "transpose=1,transpose=1";
else if (rotate == 270)
clipOut.videoFilter = "transpose=1,transpose=1,transpose=1";
millisDuration = getVideoDuration(videoInputFile.getAbsolutePath());
float secondsDuration = millisDuration / 1000f;
clipOut.duration = secondsDuration;
ffmpegController.processVideo(clipIn, clipOut, true, new ShellUtils.ShellCallback() {
@Override
public void shellOut(String shellLine) {
android.util.Log.e("COMPRESS VIDEO UTILS", "shellOut - " + shellLine);
float percentage = getTimeMetadata(shellLine);
if (percentage >= 0f)
publishProgress(percentage);
}
@Override
public void processComplete(int exitValue) {
android.util.Log.e("COMPRESS VIDEO UTILS", "proccess complete - " + exitValue);
}
});
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (videoOutputFile.exists()) {
android.util.Log.e("COMPRESS VIDEO UTILS", "finished ffmpeg ---> video output file exist");
compressedVideo.setSdcardPath(videoOutputFile.getAbsolutePath());
return compressedVideo;
} else
android.util.Log.e("COMPRESS VIDEO UTILS", "finished ffmpeg ---> video output file DON'T exist");
}
return compressedVideo;
}
private float getTimeMetadata(String shellLine) {
float percentage = -1;
if (shellLine.contains("time=")) {
String[] timeLine = shellLine.split("=");
String time = timeLine[5];
time = time.replace("bitrate", "");
time = time.trim();
// String source = "00:10:17";
String[] tokens = time.split(":");
int secondsToMs = (int) (Float.parseFloat(tokens[2]) * 1000);
int minutesToMs = Integer.parseInt(tokens[1]) * 60000;
int hoursToMs = Integer.parseInt(tokens[0]) * 3600000;
long timeInMillis = secondsToMs + minutesToMs + hoursToMs;
percentage = (timeInMillis * 100.0f) / millisDuration;
}
return percentage;
}
private int getRotateMetadata() {
int rotate = 0;
String durationString = "";
for (String shellLine : videoInfo) {
if (shellLine.contains("rotate")) {
//rotate : 270
String[] rotateLine = shellLine.split(":");
rotate = Integer.parseInt(rotateLine[1].trim());
}
}
return rotate;
}
public static long getVideoDuration(String videoPath) {
MediaMetadataRetriever retriever = new MediaMetadataRetriever();
retriever.setDataSource(videoPath);
String time = retriever
.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION);
long timeInmillisec = Long.parseLong(time);
return timeInmillisec;
}The only change I made in the processVideo method was to add the following lines when building the commmand :
cmd.add("-preset");
cmd.add("ultrafast"); -
FFMPEG Android broken MP4 output video
19 octobre 2015, par qstraI get error when try to play MP4 file with default android player, works fine on "MP4 player apps" and PC, tested on few phones, where is the problem ? how can I know why mp4 vid is broken ?
I use command for convert jpg’s to mp4, they are numered fine and video is OK on PC but not on default player.
String cmd= "-y -r "+j+" -i /sdcard/TLphotos/%03d.jpg -preset ultrafast "+path+"/"+mp4name+".mp4";
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