Java TrackControl.getSupportedFormats方法代码示例

import javax.media.control.TrackControl; //导入方法依赖的package包/类
/**
    * Try different transcoded formats for concatenation.
    */
   public boolean tryTranscode(ProcInfo pInfo[], int procID, int type, 
	int trackID, Format candidate) {

if (procID >= pInfo.length)
    return true;

boolean matched = false;
TrackControl tc = pInfo[procID].tracksByType[type][trackID].tc;
Format supported[] = tc.getSupportedFormats(); 

for (int i = 0; i < supported.length; i++) {
    if (candidate.matches(supported[i]) &&
	tryTranscode(pInfo, procID+1, type, trackID, candidate)) {
	matched = true;
	break;
    }
}

return matched;
   }
 

import javax.media.control.TrackControl; //导入方法依赖的package包/类
/**
    * Try matching the data formats and find common ones for concatenation.
    */
   public boolean tryMatch(ProcInfo pInfo[], int type, int trackID) {

TrackControl tc = pInfo[0].tracksByType[type][trackID].tc;
Format origFmt = tc.getFormat();
Format newFmt, oldFmt;
Format supported[] = tc.getSupportedFormats(); 

for (int i = 0; i < supported.length; i++) {

    if (supported[i] instanceof AudioFormat) {
	// If it's not the original format, then for audio, we'll
	// only do linear since it's more accurate to compute the
	// audio times.
	if (!supported[i].matches(tc.getFormat()) &&
	    !supported[i].getEncoding().equalsIgnoreCase(AudioFormat.LINEAR))
	    continue;
    }

    if (tryTranscode(pInfo, 1, type, trackID, supported[i])) {

	// We've found the right format to transcode all the
	// tracks to.  We'll set it on the corresponding
	// TrackControl on each processor.

	for (int j = 0; j < pInfo.length; j++) {
	    tc = pInfo[j].tracksByType[type][trackID].tc;
	    oldFmt = tc.getFormat();
	    newFmt = supported[i];

	    // Check if it requires transcoding.
	    if (!oldFmt.matches(newFmt)) {
		if (!transcodeMsg) {
		    transcodeMsg = true;
		    System.err.println(TRANSCODE_MSG);
		}

		System.err.println("- Transcoding: " + pInfo[j].ml);
		System.err.println("  " + oldFmt);
		System.err.println("           to:");
		System.err.println("  " + newFmt);
	    } 

	    // For video, check if it requires scaling.
	    if (oldFmt instanceof VideoFormat) {
		Dimension newSize = ((VideoFormat)origFmt).getSize();
		Dimension oldSize = ((VideoFormat)oldFmt).getSize();

		if (oldSize != null && !oldSize.equals(newSize)) {
		    // It requires scaling.

		    if (!transcodeMsg) {
			transcodeMsg = true;
			System.err.println(TRANSCODE_MSG);
		    }
		    System.err.println("- Scaling: " + pInfo[j].ml);
		    System.err.println("  from: " + oldSize.width + 
					" x " + oldSize.height);
		    System.err.println("  to: " + newSize.width + 
					" x " + newSize.height);
		    newFmt = (new VideoFormat(null, 
				newSize, 
				Format.NOT_SPECIFIED,
				null,
				Format.NOT_SPECIFIED)).intersects(newFmt);
		}
	    }
	    tc.setFormat(newFmt);
	}

	return true;
    }
}

return false;

   }
 

import javax.media.control.TrackControl; //导入方法依赖的package包/类
protected boolean setMyVideoFormat(VideoFormat v, TrackControl track) {
	boolean found = false;
	
	if(HiloCliente.DEBUG){
		Format[] supported = track.getSupportedFormats();
		for (int n = 0; n < supported.length; n++)
		    System.out.println("Formato de Video soportados: " + supported[n]);
	}
	
	if (v.isSameEncoding(VideoFormat.MPEG)) {
		((FormatControl) track).setFormat(new VideoFormat(
				VideoFormat.MPEG_RTP));
		found = true;
	}
	if (v.isSameEncoding(VideoFormat.JPEG_RTP)) {// para la webcam
		((FormatControl) track).setFormat(new VideoFormat(
				VideoFormat.JPEG_RTP));
		found = true;
	}
	if (v.isSameEncoding(VideoFormat.H263)) {
		((FormatControl) track).setFormat(new VideoFormat(
				VideoFormat.H263_RTP));
		found = true;
	}
	if (v.isSameEncoding(VideoFormat.JPEG)) {
		((FormatControl) track).setFormat(new VideoFormat(
				VideoFormat.JPEG_RTP));
		found = true;
	}
	if (v.isSameEncoding(VideoFormat.MJPG)) {
		((FormatControl) track).setFormat(new VideoFormat(
				VideoFormat.JPEG_RTP));
		found = true;
	}
	if (v.isSameEncoding(VideoFormat.YUV)) {// para la webcam
		((FormatControl) track).setFormat(new VideoFormat(
				VideoFormat.JPEG_RTP));
		found = true;
	}
	if (v.isSameEncoding(VideoFormat.RGB)) {// para el escritorio
		((FormatControl) track).setFormat(new VideoFormat(
				VideoFormat.JPEG_RTP));
		found = true;
	}	
	
	if(HiloCliente.DEBUG){
		String s="";
		if(found){
			s="Formato de video encontrado ("+v.toString()+"). " +
					"\nSe transforma a ("+((FormatControl) track).getFormat().toString()+").";
		}else{
			s="Formato de video ("+v.toString()+") NO encontrado.";
		}
		System.out.println(s);
	}
	
	track.setEnabled(found);
	return found;
}
 

import javax.media.control.TrackControl; //导入方法依赖的package包/类
protected boolean setMyAudioFormat(AudioFormat a, TrackControl track) {
	boolean found = false;

	if(HiloCliente.DEBUG){
		Format[] supported = track.getSupportedFormats();
		for (int n = 0; n < supported.length; n++)
		    System.out.println("Formato de Audio soportados: " + supported[n]);
	}
	
	if (a.isSameEncoding(AudioFormat.MPEG)) {
		((FormatControl) track).setFormat(new AudioFormat(
				AudioFormat.MPEG_RTP));
		found = true;
	}
	if (a.isSameEncoding(AudioFormat.MPEGLAYER3)) {
		((FormatControl) track).setFormat(new AudioFormat(
				AudioFormat.MPEG_RTP));
		found = true;
	}
	if (a.isSameEncoding(AudioFormat.LINEAR)) {
		((FormatControl) track).setFormat(new AudioFormat(
				AudioFormat.DVI_RTP));
		found = true;
	}
	if (a.isSameEncoding(AudioFormat.ULAW)) {
		((FormatControl) track).setFormat(new AudioFormat(
				AudioFormat.ULAW_RTP));
		found = true;
	}
	
	if(HiloCliente.DEBUG){
		String s="";
		if(found){
			s="Formato de audio encontrado.";
		}else{
			s="Formato de audio ("+a.toString()+") NO encontrado.";
		}
		System.out.println(s);
	}

	track.setEnabled(found);

	return found;
}