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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (45)
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Dépôt de média et thèmes par FTP
31 mai 2013, parL’outil MédiaSPIP traite aussi les média transférés par la voie FTP. Si vous préférez déposer par cette voie, récupérez les identifiants d’accès vers votre site MédiaSPIP et utilisez votre client FTP favori.
Vous trouverez dès le départ les dossiers suivants dans votre espace FTP : config/ : dossier de configuration du site IMG/ : dossier des média déjà traités et en ligne sur le site local/ : répertoire cache du site web themes/ : les thèmes ou les feuilles de style personnalisées tmp/ : dossier de travail (...) -
Personnaliser les catégories
21 juin 2013, parFormulaire de création d’une catégorie
Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
On peut modifier ce formulaire dans la partie :
Administration > Configuration des masques de formulaire.
Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...) -
Selection of projects using MediaSPIP
2 mai 2011, parThe examples below are representative elements of MediaSPIP specific uses for specific projects.
MediaSPIP farm @ Infini
The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)
Sur d’autres sites (7804)
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Android : Pass video path to FFmpeg
7 janvier 2016, par marianI have developed an app that play video from gallery. I would like to add watermark using FFmpeg command in the video selected. But I do not know how to pass the path to the FFmpeg command. I could not find proper tutorials or reference regarding this. My coding are as follows :
MainActivity.java :
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.PowerManager;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import android.widget.VideoView;
import com.netcompss.ffmpeg4android.CommandValidationException;
import com.netcompss.ffmpeg4android.GeneralUtils;
import com.netcompss.ffmpeg4android.Prefs;
import com.netcompss.ffmpeg4android.ProgressCalculator;
import com.netcompss.loader.LoadJNI;
public class MainActivity extends Activity {
public ProgressDialog progressBar;
String workFolder = null;
String demoVideoFolder = null;
String demoVideoPath = null;
String vkLogPath = null;
LoadJNI vk;
private final int STOP_TRANSCODING_MSG = -1;
private final int FINISHED_TRANSCODING_MSG = 0;
private boolean commandValidationFailedFlag = false;
Button button;
VideoView videoView;
private static final int PICK_FROM_GALLERY = 1;
private void runTranscodingUsingLoader() {
Log.i(Prefs.TAG, "runTranscodingUsingLoader started...");
PowerManager powerManager = (PowerManager)MainActivity.this.getSystemService(Activity.POWER_SERVICE);
PowerManager.WakeLock wakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "VK_LOCK");
Log.d(Prefs.TAG, "Acquire wake lock");
wakeLock.acquire();
String[] complexCommand = {"ffmpeg","-y" ,"-i", "/sdcard/videokit/in.mp4","-strict","experimental",
"-vf", "movie=/sdcard/videokit/watermark.png [watermark];" +
" [in][watermark] overlay=main_w-overlay_w-10:10 [out]","-s",
"320x240","-r", "30", "-b", "15496k", "-vcodec", "mpeg4","-ab",
"48000", "-ac", "2", "-ar", "22050", "/sdcard/videokit/out1.mp4"};
///////////////////////////////////////////////////////////////////////
vk = new LoadJNI();
try {
// running complex command with validation
vk.run(complexCommand, workFolder, getApplicationContext());
// running without command validation
//vk.run(complexCommand, workFolder, getApplicationContext(), false);
// running regular command with validation
//vk.run(GeneralUtils.utilConvertToComplex(commandStr), workFolder, getApplicationContext());
Log.i(Prefs.TAG, "vk.run finished.");
// copying vk.log (internal native log) to the videokit folder
GeneralUtils.copyFileToFolder(vkLogPath, demoVideoFolder);
} catch (CommandValidationException e) {
Log.e(Prefs.TAG, "vk run exeption.", e);
commandValidationFailedFlag = true;
} catch (Throwable e) {
Log.e(Prefs.TAG, "vk run exeption.", e);
}
finally {
if (wakeLock.isHeld()) {
wakeLock.release();
Log.i(Prefs.TAG, "Wake lock released");
}
else{
Log.i(Prefs.TAG, "Wake lock is already released, doing nothing");
}
}
// finished Toast
String rc = null;
if (commandValidationFailedFlag) {
rc = "Command Vaidation Failed";
}
else {
rc = GeneralUtils.getReturnCodeFromLog(vkLogPath);
}
final String status = rc;
MainActivity.this.runOnUiThread(new Runnable() {
public void run() {
Toast.makeText(MainActivity.this, status, Toast.LENGTH_LONG).show();
if (status.equals("Transcoding Status: Failed")) {
Toast.makeText(MainActivity.this, "Check: " + vkLogPath + " for more information.", Toast.LENGTH_LONG).show();
}
}
});
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = (Button) findViewById(R.id.button);
videoView = (VideoView) findViewById(R.id.videoview);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent();
intent.setType("video/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Complete action using"), PICK_FROM_GALLERY);
}
});
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != RESULT_OK) return;
if (requestCode == PICK_FROM_GALLERY) {
Uri mVideoURI = data.getData();
videoView.setVideoURI(mVideoURI);
videoView.start();
demoVideoFolder = mVideoURI.getPath();
demoVideoPath = demoVideoFolder;
savevideo(mVideoURI);
}
}
private Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
Log.i(Prefs.TAG, "Handler got message");
if (progressBar != null) {
progressBar.dismiss();
// stopping the transcoding native
if (msg.what == STOP_TRANSCODING_MSG) {
Log.i(Prefs.TAG, "Got cancel message, calling fexit");
vk.fExit(getApplicationContext());
}
}
}
};
public void runTranscoding() {
progressBar = new ProgressDialog(MainActivity.this);
progressBar.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressBar.setTitle("FFmpeg4Android Direct JNI");
progressBar.setMessage("Press the cancel button to end the operation");
progressBar.setMax(100);
progressBar.setProgress(0);
progressBar.setCancelable(false);
progressBar.setButton(DialogInterface.BUTTON_NEGATIVE, "Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
handler.sendEmptyMessage(STOP_TRANSCODING_MSG);
}
});
progressBar.show();
new Thread() {
public void run() {
Log.d(Prefs.TAG,"Worker started");
try {
//sleep(5000);
runTranscodingUsingLoader();
handler.sendEmptyMessage(FINISHED_TRANSCODING_MSG);
} catch(Exception e) {
Log.e("threadmessage",e.getMessage());
}
}
}.start();
// Progress update thread
new Thread() {
ProgressCalculator pc = new ProgressCalculator(vkLogPath);
public void run() {
Log.d(Prefs.TAG,"Progress update started");
int progress = -1;
try {
while (true) {
sleep(300);
progress = pc.calcProgress();
if (progress != 0 && progress < 100) {
progressBar.setProgress(progress);
}
else if (progress == 100) {
Log.i(Prefs.TAG, "==== progress is 100, exiting Progress update thread");
pc.initCalcParamsForNextInter();
break;
}
}
} catch(Exception e) {
Log.e("threadmessage",e.getMessage());
}
}
}.start();
}
public void savevideo (Uri mVideoURI){
demoVideoFolder = mVideoURI.getPath();
demoVideoPath = demoVideoFolder;
Log.i(Prefs.TAG, getString(R.string.app_name) + " version: " + GeneralUtils.getVersionName(getApplicationContext()));
Button invoke = (Button) findViewById(R.id.button);
invoke.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Log.i(Prefs.TAG, "run clicked.");
runTranscoding();
}
});
workFolder = getApplicationContext().getFilesDir() + "/";
Log.i(Prefs.TAG, "workFolder (license and logs location) path: " + workFolder);
vkLogPath = workFolder + "vk.log";
Log.i(Prefs.TAG, "vk log (native log) path: " + vkLogPath);
GeneralUtils.copyLicenseFromAssetsToSDIfNeeded(this, workFolder);
GeneralUtils.copyDemoVideoFromAssetsToSDIfNeeded(this, demoVideoFolder);
int rc = GeneralUtils.isLicenseValid(getApplicationContext(), workFolder);
Log.i(Prefs.TAG, "License check RC: " + rc);
}
}ffmpeg command :
String[] complexCommand = {"ffmpeg","-y" ,"-i", "/sdcard/videokit/in.mp4","-strict","experimental",
"-vf", "movie=/sdcard/videokit/watermark.png [watermark];" +
" [in][watermark] overlay=main_w-overlay_w-10:10 [out]","-s",
"320x240","-r", "30", "-b", "15496k", "-vcodec", "mpeg4","-ab",
"48000", "-ac", "2", "-ar", "22050", "/sdcard/videokit/out1.mp4"};Tis command is from a sample project. How do i pass the video path to this command ? I do not know how to edit the command to support my requirement. Can someone guide me through this. Any help will be really helpful. Thank you.
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Revision 32737 : habillage par defaut de Zpip utilise les conventions documentees
8 novembre 2009, par cedric@… — Loghabillage par defaut de Zpip utilise les conventions documentees
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How could I achieve a good ratio of compression and time while converting video files with ffmpeg ?
17 février 2021, par Guilherme RichterSo, I made 2 scripts that convert CCTV footage in mp4 videos. One of them is just a
-vcodec copy
and creates a mp4 with the same size of the footage (huge, btw) and my other alternative was tweak with some parameters and figure out what was the best I could do without sacrifice too much quality and make it "fast".
Then I come up withc:v libx264 -crf 30 -preset veryfast -filter:v fps=fps=20
which took something like 2 secs in my machine to run an average 6MB file and transform into a 600kB file.

Happy with the results I decided to put it on AWS lambda (to avoid bottlenecks), and then people started to complain about missing files, so I increase the timeout and the memory to 380MB. And even after that, I am still getting a few lambda errors...


Anyway, the lambda is going to cost me too much compared to just store the file without compression, there is another way to decrease size without sacrificing time ?


[UPDATE]
I crunch some numbers and even tho using lambda is not what I expected, I am still saving a lot of cash monthly by reducing the file size 10x times.


As asked, this is the logs for the ffmpeg.


ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 10 (GCC)
 configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection' --extra-ldflags='-Wl,-z,relro -Wl,--as-needed -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld ' --extra-cflags=' -I/usr/include/rav1e' --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-version3 --enable-bzlib --disable-crystalhd --enable-fontconfig --enable-frei0r --enable-gcrypt --enable-gnutls --enable-ladspa --enable-libaom --enable-libdav1d --enable-libass --enable-libbluray --enable-libcdio --enable-libdrm --enable-libjack --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-liblensfun --enable-libmp3lame --enable-libmysofa --enable-nvenc --enable-openal --enable-opencl --enable-opengl --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librav1e --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-version3 --enable-vapoursynth --enable-libvpx --enable-vulkan --enable-libglslang --enable-libx264 --enable-libx265 --enable-libxvid --enable-libxml2 --enable-libzimg --enable-libzvbi --enable-lv2 --enable-avfilter --enable-avresample --enable-libmodplug --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-lto --enable-libmfx --enable-runtime-cpudetect
 libavutil 56. 51.100 / 56. 51.100
 libavcodec 58. 91.100 / 58. 91.100
 libavformat 58. 45.100 / 58. 45.100
 libavdevice 58. 10.100 / 58. 10.100
 libavfilter 7. 85.100 / 7. 85.100
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 7.100 / 5. 7.100
 libswresample 3. 7.100 / 3. 7.100
 libpostproc 55. 7.100 / 55. 7.100
Input #0, dhav, from 'ch1_principal_28122020030156_28122020030600.dav':
 Duration: N/A, start: 1609124514.000000, bitrate: N/A
 Stream #0:0: Video: hevc (Main), yuvj420p(pc, bt709), 960x480, 30 fps, 30 tbr, 1k tbn
Stream mapping:
 Stream #0:0 -> #0:0 (hevc (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x556ce99e7100] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x556ce99e7100] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0x556ce99e7100] 264 - core 160 r3011 cde9a93 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=6 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=1 keyint=250 keyint_min=20 scenecut=40 intra_refresh=0 rc_lookahead=10 rc=crf mbtree=1 crf=30.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '_test1.mp4':
 Metadata:
 encoder : Lavf58.45.100
 Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuvj420p(pc), 960x480, q=-1--1, 20 fps, 10240 tbn, 20 tbc
 Metadata:
 encoder : Lavc58.91.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
[dhav @ 0x556ce99b8400] Packet corrupt (stream = 0, dts = NOPTS).te= 127.1kbits/s speed=10.9x 
ch1_principal_28122020030156_28122020030600.dav: corrupt input packet in stream 0
frame= 805 fps=226 q=-1.0 Lsize= 682kB time=00:00:40.10 bitrate= 139.4kbits/s speed=11.2x 
video:672kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.521397%
[libx264 @ 0x556ce99e7100] frame I:4 Avg QP:27.76 size: 31382
[libx264 @ 0x556ce99e7100] frame P:205 Avg QP:30.62 size: 2110
[libx264 @ 0x556ce99e7100] frame B:596 Avg QP:33.91 size: 217
[libx264 @ 0x556ce99e7100] consecutive B-frames: 1.1% 0.2% 0.7% 97.9%
[libx264 @ 0x556ce99e7100] mb I I16..4: 8.3% 41.1% 50.6%
[libx264 @ 0x556ce99e7100] mb P I16..4: 0.9% 3.0% 0.4% P16..4: 16.9% 4.1% 1.3% 0.0% 0.0% skip:73.4%
[libx264 @ 0x556ce99e7100] mb B I16..4: 0.1% 0.2% 0.0% B16..8: 1.4% 0.4% 0.0% direct: 0.9% skip:96.9% L0:42.0% L1:48.0% BI: 9.9%
[libx264 @ 0x556ce99e7100] 8x8 transform intra:63.1% inter:40.6%
[libx264 @ 0x556ce99e7100] coded y,uvDC,uvAC intra: 55.6% 40.9% 5.0% inter: 1.4% 2.1% 0.0%
[libx264 @ 0x556ce99e7100] i16 v,h,dc,p: 27% 28% 24% 21%
[libx264 @ 0x556ce99e7100] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 16% 26% 6% 6% 6% 7% 11% 7%
[libx264 @ 0x556ce99e7100] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 17% 15% 9% 6% 6% 7% 13% 6%
[libx264 @ 0x556ce99e7100] i8c dc,h,v,p: 63% 16% 16% 5%
[libx264 @ 0x556ce99e7100] Weighted P-Frames: Y:8.8% UV:1.0%
[libx264 @ 0x556ce99e7100] kb/s:136.66