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Médias (1)
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Bug de détection d’ogg
22 mars 2013, par
Mis à jour : Avril 2013
Langue : français
Type : Video
Autres articles (50)
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Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users. -
Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
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Ecrire une actualité
21 juin 2013, parPrésentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
Vous pouvez personnaliser le formulaire de création d’une actualité.
Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)
Sur d’autres sites (9929)
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Squeeze image when images are larger image than 1024X768 in FFMpeg with javacv
14 avril 2016, par SatyI am using this below code to stream RTMP to my Adobe FMS Server... its doing good. It shows squeezed image if the camera resolution is above 1024X768.
The issue came when we tested on a Tab which has camera resolution of 1200X800, The recorder automatically takes the resolution of 1024X768 which makes the preview and the actual video a squeezed one and one more thing is recording format does not support MP4Can anyone describe why its not working with this and can we use that format.
public class MainActivity extends Activity implements OnClickListener {
private final static String LOG_TAG = "MainActivity";
private PowerManager.WakeLock mWakeLock;
private String ffmpeg_link = "rtmp://username:password@xxx.xxx.xxx.xxx:1935/live/test.flv";//private String ffmpeg_link = "/mnt/sdcard/new_stream.flv" ;
private volatile FFmpegFrameRecorder recorder;
boolean recording = false;
long startTime = 0;
private int sampleAudioRateInHz = 44100;
private int imageWidth = 320;
private int imageHeight = 240;
private int frameRate = 30;
private Thread audioThread;
volatile boolean runAudioThread = true;
private AudioRecord audioRecord;
private AudioRecordRunnable audioRecordRunnable;
private CameraView cameraView;
private IplImage yuvIplimage = null;
private Button recordButton;
private LinearLayout mainLayout;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
setContentView(R.layout.activity_main);
initLayout();
initRecorder();
}
@Override
protected void onResume() {
super.onResume();
if (mWakeLock == null) {
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
mWakeLock = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK, LOG_TAG);
mWakeLock.acquire();
}
}
@Override
protected void onPause() {
super.onPause();
if (mWakeLock != null) {
mWakeLock.release();
mWakeLock = null;
}
}
@Override
protected void onDestroy() {
super.onDestroy();
recording = false;
}
private void initLayout() {
mainLayout = (LinearLayout) this.findViewById(R.id.record_layout);
recordButton = (Button) findViewById(R.id.recorder_control);
recordButton.setText("Start");
recordButton.setOnClickListener(this);
cameraView = new CameraView(this);
LinearLayout.LayoutParams layoutParam = new LinearLayout.LayoutParams(imageWidth, imageHeight);
mainLayout.addView(cameraView, layoutParam);
Log.v(LOG_TAG, "added cameraView to mainLayout");
}
private void initRecorder() {
Log.w(LOG_TAG,"initRecorder");
if (yuvIplimage == null) {
// Recreated after frame size is set in surface change method
yuvIplimage = IplImage.create(imageWidth, imageHeight, IPL_DEPTH_8U, 2);
//yuvIplimage = IplImage.create(imageWidth, imageHeight, IPL_DEPTH_32S, 2);
Log.v(LOG_TAG, "IplImage.create");
}
recorder = new FFmpegFrameRecorder(ffmpeg_link, imageWidth, imageHeight, 1);
Log.v(LOG_TAG, "FFmpegFrameRecorder: " + ffmpeg_link + " imageWidth: " + imageWidth + " imageHeight " + imageHeight);
recorder.setFormat("flv");
Log.v(LOG_TAG, "recorder.setFormat(\"flv\")");
recorder.setSampleRate(sampleAudioRateInHz);
Log.v(LOG_TAG, "recorder.setSampleRate(sampleAudioRateInHz)");
// re-set in the surface changed method as well
recorder.setFrameRate(frameRate);
Log.v(LOG_TAG, "recorder.setFrameRate(frameRate)");
// Create audio recording thread
audioRecordRunnable = new AudioRecordRunnable();
audioThread = new Thread(audioRecordRunnable);}
// Start the capture
public void startRecording() {
try {
recorder.start();
startTime = System.currentTimeMillis();
recording = true;
audioThread.start();
} catch (FFmpegFrameRecorder.Exception e) {
e.printStackTrace();
}
}
public void stopRecording() {
// This should stop the audio thread from running
runAudioThread = false;
if (recorder != null && recording) {
recording = false;
Log.v(LOG_TAG,"Finishing recording, calling stop and release on recorder");
try {
recorder.stop();
recorder.release();
} catch (FFmpegFrameRecorder.Exception e) {
e.printStackTrace();
}
recorder = null;
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
// Quit when back button is pushed
if (keyCode == KeyEvent.KEYCODE_BACK) {
if (recording) {
stopRecording();
}
finish();
return true;
}
return super.onKeyDown(keyCode, event);
}
@Override
public void onClick(View v) {
if (!recording) {
startRecording();
Log.w(LOG_TAG, "Start Button Pushed");
recordButton.setText("Stop");
} else {
stopRecording();
Log.w(LOG_TAG, "Stop Button Pushed");
recordButton.setText("Start");
}
}
//---------------------------------------------
// audio thread, gets and encodes audio data
//---------------------------------------------
class AudioRecordRunnable implements Runnable {
@Override
public void run() {
// Set the thread priority
android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_URGENT_AUDIO);
// Audio
int bufferSize;
short[] audioData;
int bufferReadResult;
bufferSize = AudioRecord.getMinBufferSize(sampleAudioRateInHz,
AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT);
audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, sampleAudioRateInHz,
AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT, bufferSize);
audioData = new short[bufferSize];
Log.d(LOG_TAG, "audioRecord.startRecording()");
audioRecord.startRecording();
// Audio Capture/Encoding Loop
while (runAudioThread) {
// Read from audioRecord
bufferReadResult = audioRecord.read(audioData, 0, audioData.length);
if (bufferReadResult > 0) {
//Log.v(LOG_TAG,"audioRecord bufferReadResult: " + bufferReadResult);
// Changes in this variable may not be picked up despite it being "volatile"
if (recording) {
try {
// Write to FFmpegFrameRecorder
Buffer[] buffer = {ShortBuffer.wrap(audioData, 0, bufferReadResult)};
recorder.record(buffer);
} catch (FFmpegFrameRecorder.Exception e) {
Log.v(LOG_TAG,e.getMessage());
e.printStackTrace();
}
}
}
}
Log.v(LOG_TAG,"AudioThread Finished");
/* Capture/Encoding finished, release recorder */
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
audioRecord = null;
Log.v(LOG_TAG,"audioRecord released");
}
}}
class CameraView extends SurfaceView implements SurfaceHolder.Callback, PreviewCallback {
private boolean previewRunning = false;
private SurfaceHolder holder;
private Camera camera;
private byte[] previewBuffer;
long videoTimestamp = 0;
Bitmap bitmap;
Canvas canvas;
public CameraView(Context _context) {
super(_context);
holder = this.getHolder();
holder.addCallback(this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
camera = Camera.open();
try {
camera.setPreviewDisplay(holder);
camera.setPreviewCallback(this);
Camera.Parameters currentParams = camera.getParameters();
Log.v(LOG_TAG,"Preview Framerate: " + currentParams.getPreviewFrameRate());
Log.v(LOG_TAG,"Preview imageWidth: " + currentParams.getPreviewSize().width + " imageHeight: " + currentParams.getPreviewSize().height);
// Use these values
imageWidth = currentParams.getPreviewSize().width;
imageHeight = currentParams.getPreviewSize().height;
frameRate = currentParams.getPreviewFrameRate();
bitmap = Bitmap.createBitmap(imageWidth, imageHeight, Bitmap.Config.ALPHA_8);
/*
Log.v(LOG_TAG,"Creating previewBuffer size: " + imageWidth * imageHeight * ImageFormat.getBitsPerPixel(currentParams.getPreviewFormat())/8);
previewBuffer = new byte[imageWidth * imageHeight * ImageFormat.getBitsPerPixel(currentParams.getPreviewFormat())/8];
camera.addCallbackBuffer(previewBuffer);
camera.setPreviewCallbackWithBuffer(this);
*/
camera.startPreview();
previewRunning = true;
}
catch (IOException e) {
Log.v(LOG_TAG,e.getMessage());
e.printStackTrace();
}
}
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
Log.v(LOG_TAG,"Surface Changed: width " + width + " height: " + height);
// We would do this if we want to reset the camera parameters
/*
if (!recording) {
if (previewRunning){
camera.stopPreview();
}
try {
//Camera.Parameters cameraParameters = camera.getParameters();
//p.setPreviewSize(imageWidth, imageHeight);
//p.setPreviewFrameRate(frameRate);
//camera.setParameters(cameraParameters);
camera.setPreviewDisplay(holder);
camera.startPreview();
previewRunning = true;
}
catch (IOException e) {
Log.e(LOG_TAG,e.getMessage());
e.printStackTrace();
}
}
*/
// Get the current parameters
Camera.Parameters currentParams = camera.getParameters();
Log.v(LOG_TAG,"Preview Framerate: " + currentParams.getPreviewFrameRate());
Log.v(LOG_TAG,"Preview imageWidth: " + currentParams.getPreviewSize().width + " imageHeight: " + currentParams.getPreviewSize().height);
// Use these values
imageWidth = currentParams.getPreviewSize().width;
imageHeight = currentParams.getPreviewSize().height;
frameRate = currentParams.getPreviewFrameRate();
// Create the yuvIplimage if needed
yuvIplimage = IplImage.create(imageWidth, imageHeight, IPL_DEPTH_8U, 2);
//yuvIplimage = IplImage.create(imageWidth, imageHeight, IPL_DEPTH_32S, 2);
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
try {
camera.setPreviewCallback(null);
previewRunning = false;
camera.release();
} catch (RuntimeException e) {
Log.v(LOG_TAG,e.getMessage());
e.printStackTrace();
}
}
@Override
public void onPreviewFrame(byte[] data, Camera camera) {
if (yuvIplimage != null && recording) {
videoTimestamp = 1000 * (System.currentTimeMillis() - startTime);
// Put the camera preview frame right into the yuvIplimage object
yuvIplimage.getByteBuffer().put(data);
// FAQ about IplImage:
// - For custom raw processing of data, getByteBuffer() returns an NIO direct
// buffer wrapped around the memory pointed by imageData, and under Android we can
// also use that Buffer with Bitmap.copyPixelsFromBuffer() and copyPixelsToBuffer().
// - To get a BufferedImage from an IplImage, we may call getBufferedImage().
// - The createFrom() factory method can construct an IplImage from a BufferedImage.
// - There are also a few copy*() methods for BufferedImage<->IplImage data transfers.
// Let's try it..
// This works but only on transparency
// Need to find the right Bitmap and IplImage matching types
/*
bitmap.copyPixelsFromBuffer(yuvIplimage.getByteBuffer());
//bitmap.setPixel(10,10,Color.MAGENTA);
canvas = new Canvas(bitmap);
Paint paint = new Paint();
paint.setColor(Color.GREEN);
float leftx = 20;
float topy = 20;
float rightx = 50;
float bottomy = 100;
RectF rectangle = new RectF(leftx,topy,rightx,bottomy);
canvas.drawRect(rectangle, paint);
bitmap.copyPixelsToBuffer(yuvIplimage.getByteBuffer());
*/
//Log.v(LOG_TAG,"Writing Frame");
try {
// Get the correct time
recorder.setTimestamp(videoTimestamp);
// Record the image into FFmpegFrameRecorder
recorder.record(yuvIplimage);
} catch (FFmpegFrameRecorder.Exception e) {
Log.v(LOG_TAG,e.getMessage());
e.printStackTrace();
}
}
}}
} -
Revision 35436 : Petites pétouilles en passant par là (écriture aux dernières normes ...
22 février 2010, par marcimat@… — LogPetites pétouilles en passant par là (écriture aux dernières normes ISO)…
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Revision 35682 : maj invalideur
28 février 2010, par brunobergot@… — Logmaj invalideur
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