سلام للجميع
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هنا فى ال code التالى كود يقوم بتجميع ملفات من نوع bmp و تحويلها إلى فديو من نوع AVI .
بيتم عرض ملف الفديو فى المسار المحدد له ، لكن عند التشغيل بيقولى محتاج codec مش موجود فى ال system عشان يشغل الملف هذا
طبعا المشكلة فى أنى محدد VideoFormate مش مناسب .
هناك شيئين يجب تحديدهم و هما :
- FileTypeDescriptor . و النوع الوحيد الى نفع و قبله الأخ DataSink هو FileTypeDescriptor.MSVIDEO
VideoFormate . وهناك انواع عديدة زى H162 , H263 و غيرهم
الصراحة أنا جربت و بيطلع ملف الفديو و لما اشغله يقولى فى Codec مش موجود فى ال system عشان تقدر تشغل الفديو ده
ال code :
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import java.awt.Dimension;
import java.io.*;
import java.util.*;
import javax.media.*;
import javax.media.control.*;
import javax.media.protocol.*;
import javax.media.protocol.DataSource;
import javax.media.datasink.*;
import javax.media.format.VideoFormat;
public class BmpToAvi implements ControllerListener, DataSinkListener {
public boolean doIt(int width, int height, int frameRate, Vector inFiles, MediaLocator outML) {
ImageDataSource ids = new ImageDataSource(width, height, frameRate, inFiles);
Processor p;
try {
System.err.println("- create processor for the image datasource ...");
p = Manager.createProcessor(ids);
} catch (Exception e) {
System.err.println("Yikes! Cannot create a processor from the data source.");
return false;
}
p.addControllerListener(this);
// Put the Processor into configured state so we can set
// some processing options on the processor.
p.configure();
if (!waitForState(p, p.Configured)) {
System.err.println("Failed to configure the processor.");
return false;
}
// Set the output content descriptor to QuickTime.
p.setContentDescriptor(new ContentDescriptor(FileTypeDescriptor.MSVIDEO));
// Query for the processor for supported formats.
// Then set it on the processor.
TrackControl tcs[] = p.getTrackControls();
Format f[] = tcs[0].getSupportedFormats();
if (f == null || f.length <= 0) {
System.err.println("The mux does not support the input format: " + tcs[0].getFormat());
return false;
}
tcs[0].setFormat(f[0]);
System.err.println("Setting the track format to: " + f[0]);
// We are done with programming the processor. Let's just
// realize it.
p.realize();
if (!waitForState(p, p.Realized)) {
System.err.println("Failed to realize the processor.");
return false;
}
// Now, we'll need to create a DataSink.
DataSink dsink;
if ((dsink = createDataSink(p, outML)) == null) {
System.err.println("Failed to create a DataSink for the given output MediaLocator: " + outML);
return false;
}
dsink.addDataSinkListener(this);
fileDone = false;
System.err.println("start processing...");
// OK, we can now start the actual transcoding.
try {
p.start();
dsink.start();
} catch (IOException e) {
System.err.println("IO error during processing");
return false;
}
// Wait for EndOfStream event.
waitForFileDone();
// Cleanup.
try {
dsink.close();
} catch (Exception e) {
}
p.removeControllerListener(this);
System.err.println("...done processing.");
return true;
}
/**
* Create the DataSink.
*/
DataSink createDataSink(Processor p, MediaLocator outML) {
DataSource ds;
if ((ds = p.getDataOutput()) == null) {
System.err.println("Something is really wrong: the processor does not have an output DataSource");
return null;
}
DataSink dsink;
try {
System.err.println("- create DataSink for: " + outML);
dsink = Manager.createDataSink(ds, outML);
dsink.open();
} catch (Exception e) {
System.err.println("Cannot create the DataSink: " + e);
return null;
}
return dsink;
}
Object waitSync = new Object();
boolean stateTransitionOK = true;
/**
* Block until the processor has transitioned to the given state.
* Return false if the transition failed.
*/
boolean waitForState(Processor p, int state) {
synchronized (waitSync) {
try {
while (p.getState() < state && stateTransitionOK) {
waitSync.wait();
}
} catch (Exception e) {
}
}
return stateTransitionOK;
}
/**
* Controller Listener.
*/
public void controllerUpdate(ControllerEvent evt) {
if (evt instanceof ConfigureCompleteEvent
|| evt instanceof RealizeCompleteEvent
|| evt instanceof PrefetchCompleteEvent) {
synchronized (waitSync) {
stateTransitionOK = true;
waitSync.notifyAll();
}
} else if (evt instanceof ResourceUnavailableEvent) {
synchronized (waitSync) {
stateTransitionOK = false;
waitSync.notifyAll();
}
} else if (evt instanceof EndOfMediaEvent) {
evt.getSourceController().stop();
evt.getSourceController().close();
}
}
Object waitFileSync = new Object();
boolean fileDone = false;
boolean fileSuccess = true;
/**
* Block until file writing is done.
*/
boolean waitForFileDone() {
synchronized (waitFileSync) {
try {
while (!fileDone) {
waitFileSync.wait();
}
} catch (Exception e) {
}
}
return fileSuccess;
}
/**
* Event handler for the file writer.
*/
public void dataSinkUpdate(DataSinkEvent evt) {
if (evt instanceof EndOfStreamEvent) {
synchronized (waitFileSync) {
fileDone = true;
waitFileSync.notifyAll();
}
} else if (evt instanceof DataSinkErrorEvent) {
synchronized (waitFileSync) {
fileDone = true;
fileSuccess = false;
waitFileSync.notifyAll();
}
}
}
public static void main(String args[]) {
int width = 320, height = 240, frameRate = 1;
Vector inputFiles = new Vector();
String outputURL = null;
inputFiles.addElement("file:/D:/picutres/out/1.bmp");
inputFiles.addElement("file:/D:/picutres/out/2.bmp");
inputFiles.addElement("file:/D:/picutres/out/3.bmp");
MediaLocator oml;
if ((oml = createMediaLocator("file:/D:/picutres/6.avi")) == null) {
System.err.println("Cannot build media locator from: " + outputURL);
System.exit(0);
}
BmpToAvi imageToAvi = new BmpToAvi();
imageToAvi.doIt(width, height, frameRate, inputFiles, oml);
}
/**
* Create a media locator from the given string.
*/
static MediaLocator createMediaLocator(String url) {
MediaLocator ml;
if (url.indexOf(":") > 0 && (ml = new MediaLocator(url)) != null) {
return ml;
}
if (url.startsWith(File.separator)) {
if ((ml = new MediaLocator("file:" + url)) != null) {
return ml;
}
} else {
String file = "file:" + System.getProperty("user.dir") + File.separator + url;
if ((ml = new MediaLocator(file)) != null) {
return ml;
}
}
return null;
}
}
/**
* A DataSource to read from a list of JPEG image files and
* turn that into a stream of JMF buffers.
* The DataSource is not seekable or positionable.
*/
class ImageDataSource extends PullBufferDataSource {
ImageSourceStream streams[];
ImageDataSource(int width, int height, int frameRate, Vector images) {
streams = new ImageSourceStream[1];
streams[0] = new ImageSourceStream(width, height, frameRate, images);
}
@Override
public void setLocator(MediaLocator source) {
}
@Override
public MediaLocator getLocator() {
return null;
}
/**
* Content type is of RAW since we are sending buffers of video
* frames without a container format.
*/
public String getContentType() {
return ContentDescriptor.RAW;
}
public void connect() {
}
public void disconnect() {
}
public void start() {
}
public void stop() {
}
/**
* Return the ImageSourceStreams.
*/
public PullBufferStream[] getStreams() {
return streams;
}
/**
* We could havederived the duration from the number of
* frames and frame rate. But for the purpose of this program,
* it's not necessary.
*/
public Time getDuration() {
return DURATION_UNKNOWN;
}
public Object[] getControls() {
return new Object[0];
}
public Object getControl(String type) {
return null;
}
}
/**
* The source stream to go along with ImageDataSource.
*/
class ImageSourceStream implements PullBufferStream {
Vector images;
int width, height;
VideoFormat format;
int nextImage = 0; // index of the next image to be read.
boolean ended = false;
public ImageSourceStream(int width, int height, int frameRate, Vector images) {
this.width = width;
this.height = height;
this.images = images;
format = new VideoFormat(VideoFormat.H261,
new Dimension(width, height),
Format.NOT_SPECIFIED,
Format.byteArray,
(float) frameRate);
}
/**
* We should never need to block assuming data are read from files.
*/
public boolean willReadBlock() {
return false;
}
/**
* This is called from the Processor to read a frame worth
* of video data.
*/
public void read(Buffer buf) throws IOException {
// Check if we've finished all the frames.
if (nextImage >= images.size()) {
// We are done. Set EndOfMedia.
System.err.println("Done reading all images.");
buf.setEOM(true);
buf.setOffset(0);
buf.setLength(0);
ended = true;
return;
}
String imageFile = (String) images.elementAt(nextImage);
nextImage++;
System.err.println(" - reading image file: " + imageFile);
// Open a random access file for the next image.
RandomAccessFile raFile;
raFile = new RandomAccessFile(imageFile, "r");
byte data[] = null;
// Check the input buffer type & size.
if (buf.getData() instanceof byte[]) {
data = (byte[]) buf.getData();
}
// Check to see the given buffer is big enough for the frame.
if (data == null || data.length < raFile.length()) {
data = new byte[(int) raFile.length()];
buf.setData(data);
}
// Read the entire JPEG image from the file.
raFile.readFully(data, 0, (int) raFile.length());
System.err.println(" read " + raFile.length() + " bytes.");
buf.setOffset(0);
buf.setLength((int) raFile.length());
buf.setFormat(format);
buf.setFlags(buf.getFlags() | Buffer.FLAG_KEY_FRAME);
// Close the random access file.
raFile.close();
}
/**
* Return the format of each video frame. That will be JPEG.
*/
public Format getFormat() {
return format;
}
public ContentDescriptor getContentDescriptor() {
return new ContentDescriptor(ContentDescriptor.RAW);
}
public long getContentLength() {
return 0;
}
public boolean endOfStream() {
return ended;
}
public Object[] getControls() {
return new Object[0];
}
public Object getControl(String type) {
return null;
}
}و مرفق ملف به 3 صور من نوع bmp
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