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DJ Z-trip - Victory Lap : The Obama Mix Pt. 2
15 septembre 2011
Mis à jour : Avril 2013
Langue : English
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Matmos - Action at a Distance
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Mis à jour : Septembre 2011
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Type : Audio
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DJ Dolores - Oslodum 2004 (includes (cc) sample of “Oslodum” by Gilberto Gil)
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Danger Mouse & Jemini - What U Sittin’ On ? (starring Cee Lo and Tha Alkaholiks)
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Cornelius - Wataridori 2
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The Rapture - Sister Saviour (Blackstrobe Remix)
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Autres articles (13)
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Sur d’autres sites (3725)
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avcodec/rl : Don't pretend ff_rl_init() initializes a RLTable twice
8 mai 2021, par Andreas Rheinhardtavcodec/rl : Don't pretend ff_rl_init() initializes a RLTable twice
It can't any longer, because all users of ff_rl_init() are now
behind ff_thread_once() or the global codec lock. Therefore
the check for whether the RLTable is already initialized can be removed ;
as can the stack buffers that existed to make sure that nothing is ever
set to a value different from its final value.
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FFmpeg4Android : How to select videos from gallery ?
4 décembre 2015, par marianI have created an app using FFmpeg4Android library. I would like to add watermark into videos using ffmpeg. Command for adding watermark is working fine but the coding has pre-fixed video name in the command. I would like to choose videos from gallery folder and then add watermark to the videos. I do not know how to add intent for choosing videos with FFmpeg. I have tried to add the intent like this replacing the in.mp4 with PICK_FROM_GALLERY intent :
private void runTranscodingUsingLoader() {
Log.i(Prefs.TAG, "runTranscodingUsingLoader started...");
PowerManager powerManager = (PowerManager)ProgressBarExample.this.getSystemService(Activity.POWER_SERVICE);
WakeLock wakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "VK_LOCK");
Log.d(Prefs.TAG, "Acquire wake lock");
wakeLock.acquire();
Intent intent = new Intent();
intent.setType("video/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Complete action using"), PICK_FROM_GALLERY);
String[] complexCommand = {"ffmpeg","-y" ,"-i", String.valueOf(PICK_FROM_GALLERY),"-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"};It opens the gallery but the watermarking command doesnt get executed in the selected video. Can someone help me to resolve this issue. I could not find proper references/examples regarding this. My full coding is as follows.
public class ProgressBarExample 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;
private static final int PICK_FROM_GALLERY = 1;
private void runTranscodingUsingLoader() {
Log.i(Prefs.TAG, "runTranscodingUsingLoader started...");
PowerManager powerManager = (PowerManager)ProgressBarExample.this.getSystemService(Activity.POWER_SERVICE);
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;
ProgressBarExample.this.runOnUiThread(new Runnable() {
public void run() {
Toast.makeText(ProgressBarExample.this, status, Toast.LENGTH_LONG).show();
if (status.equals("Transcoding Status: Failed")) {
Toast.makeText(ProgressBarExample.this, "Check: " + vkLogPath + " for more information.", Toast.LENGTH_LONG).show();
}
}
});
}
@Override
public void onCreate(Bundle savedInstanceState) {
Log.i(Prefs.TAG, "onCreate ffmpeg4android ProgressBarExample");
super.onCreate(savedInstanceState);
setContentView(R.layout.ffmpeg_demo_client_2);
demoVideoFolder = Environment.getExternalStorageDirectory().getAbsolutePath() + "/videokit/";
demoVideoPath = demoVideoFolder + "in.mp4";
Log.i(Prefs.TAG, getString(R.string.app_name) + " version: " + GeneralUtils.getVersionName(getApplicationContext()) );
Button invoke = (Button)findViewById(R.id.invokeButton);
invoke.setOnClickListener(new 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);
}
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(ProgressBarExample.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();
}
}Any help/guidance would be really helpful. Thank you.
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After compressing the video, it's quality getting dull in Android
9 septembre 2015, par Parth BhayaniI have done with the video compressing using ffmpeg in Android and I am having some problem in it.
I have captured one video of exactly one minute and it has 123 MB of size on my nexus 5. I did video compressing of the same video from 123 MB to 1.30 MB approx and it will take 2 minutes near about and that was successfully done.
But the question is that I have the compressed video in my SD Card and when I’ll play it, the quality of the video is totally dull, below is my code using ffmpeg.
String[] complexCommand = {"ffmpeg", "-i", videoPath, "-strict","experimental","-s", "160x120","-r","25", "-vcodec", "mpeg4", "-b", "150k", "-ab","48000", "-ac", "2", "-ar", "22050", demoVideoFolder + "Compressed_Video.mp4"};
LoadJNI vk = new LoadJNI();
try {
vk.run(complexCommand, workFolder, getApplicationContext(),
false);
GeneralUtils.copyFileToFolder(vkLogPath, demoVideoFolder);
} catch (Throwable e) {
Log.e(Prefs.TAG, "vk run exeption.", e);
} finally {
if (wakeLock.isHeld())
wakeLock.release();
else {
Log.i(Prefs.TAG,
"Wake lock is already released, doing nothing");
}
}
Log.i(Prefs.TAG, "doInBackground finished");Here videopath is my filepath and demofolder is my output folder. I have attached the snapshot, just have a look into it.
Please, tell me what I should do, so just in advance your efforts will be highly appreciated and thanks for that.
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