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Properly checking supported resolutions. Added Resolution.toString()

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This commit is contained in:
codeanticode
2011-10-10 20:35:29 +00:00
parent a93ffc7d98
commit e92c45e224
2 changed files with 117 additions and 136 deletions
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java/libraries/video/src/processing/video/Capture.java
+113 -136
View File
@@ -205,9 +205,6 @@ public class Capture extends PImage implements PConstants {
}
/**
* Releases the gstreamer resources associated to this capture object.
* It shouldn't be used after this.
@@ -262,64 +259,7 @@ public class Capture extends PImage implements PConstants {
super.finalize();
}
}
/**
* Prints all the gstreamer elements currently used in the
* current pipeline instance.
*
*/
public void printElements() {
List<Element> list = gpipeline.getElementsRecursive();
PApplet.println(list);
for (Element element : list) {
PApplet.println(element.toString());
}
}
/**
* Sets the object to use as destination for the frames read from the stream.
* The color conversion mask is automatically set to the one required to
* copy the frames to OpenGL.
*
* @param Object dest
*/
public void setPixelDest(Object dest) {
copyHandler = dest;
if (ByteOrder.nativeOrder() == ByteOrder.LITTLE_ENDIAN) {
copyMask = "red_mask=(int)0xFF000000, green_mask=(int)0xFF0000, blue_mask=(int)0xFF00";
} else {
copyMask = "red_mask=(int)0xFF, green_mask=(int)0xFF00, blue_mask=(int)0xFF0000";
}
}
/**
* Sets the object to use as destination for the frames read from the stream.
*
* @param Object dest
* @param String mask
*/
public void setPixelDest(Object dest, String mask) {
copyHandler = dest;
copyMask = mask;
}
/**
* Uses a generic object as handler of the movie. This object should have a
* movieEvent method that receives a GSMovie argument. This method will
* be called upon a new frame read event.
*
*/
public void setEventHandlerObject(Object obj) {
eventHandler = obj;
try {
captureEventMethod = parent.getClass().getMethod("captureEvent",
new Class[] { Capture.class });
} catch (Exception e) {
// no such method, or an error.. which is fine, just ignore
}
}
/**
* Returns true if the stream is already producing frames.
*
@@ -342,6 +282,15 @@ public class Capture extends PImage implements PConstants {
return res;
}
/**
* Returns whether the device is capturing frames or not.
*
* @return boolean
*/
public boolean isCapturing() {
return capturing;
}
/**
* ( begin auto-generated from Capture_available.xml )
*
@@ -355,16 +304,6 @@ public class Capture extends PImage implements PConstants {
public boolean available() {
return available;
}
/**
* Returns whether the device is capturing frames or not.
*
* @return boolean
*/
public boolean isCapturing() {
return capturing;
}
/**
* Starts the capture pipeline.
@@ -382,7 +321,8 @@ public class Capture extends PImage implements PConstants {
if (init) {
// Resolution and FPS initialization needs to be done after the
// pipeline is set to play.
initResAndFps();
getResolutions();
checkResolutions();
}
}
@@ -467,26 +407,13 @@ public class Capture extends PImage implements PConstants {
}
/**
* Returns a list with the resolutions supported by the capture device,
* including width, height and frame rate.
* Returns the name of the source element used for capture.
*
* @return Resolution[]
*/
public Resolution[] resolutions() {
Resolution[] res;
if (resolutions == null) {
res = new Resolution[0];
} else {
int n = resolutions.size();
res = new Resolution[n];
for (int i = 0; i < n; i++) {
res[i] = new Resolution((Resolution)resolutions.get(i));
}
}
return res;
}
* @return String
*/
public String getSource() {
return source;
}
/**
* ( begin auto-generated from Capture_list.xml )
@@ -562,6 +489,85 @@ public class Capture extends PImage implements PConstants {
return valuesListing;
}
/**
* Returns a list with the resolutions supported by the capture device,
* including width, height and frame rate.
*
* @return Resolution[]
*/
public Resolution[] resolutions() {
Resolution[] res;
if (resolutions == null) {
res = new Resolution[0];
} else {
int n = resolutions.size();
res = new Resolution[n];
for (int i = 0; i < n; i++) {
res[i] = new Resolution((Resolution)resolutions.get(i));
}
}
return res;
}
/**
* Prints all the gstreamer elements currently used in the
* current pipeline instance.
*
*/
public void printElements() {
List<Element> list = gpipeline.getElementsRecursive();
PApplet.println(list);
for (Element element : list) {
PApplet.println(element.toString());
}
}
/**
* Sets the object to use as destination for the frames read from the stream.
* The color conversion mask is automatically set to the one required to
* copy the frames to OpenGL.
*
* @param Object dest
*/
public void setPixelDest(Object dest) {
copyHandler = dest;
if (ByteOrder.nativeOrder() == ByteOrder.LITTLE_ENDIAN) {
copyMask = "red_mask=(int)0xFF000000, green_mask=(int)0xFF0000, blue_mask=(int)0xFF00";
} else {
copyMask = "red_mask=(int)0xFF, green_mask=(int)0xFF00, blue_mask=(int)0xFF0000";
}
}
/**
* Sets the object to use as destination for the frames read from the stream.
*
* @param Object dest
* @param String mask
*/
public void setPixelDest(Object dest, String mask) {
copyHandler = dest;
copyMask = mask;
}
/**
* Uses a generic object as handler of the movie. This object should have a
* movieEvent method that receives a GSMovie argument. This method will
* be called upon a new frame read event.
*
*/
public void setEventHandlerObject(Object obj) {
eventHandler = obj;
try {
captureEventMethod = parent.getClass().getMethod("captureEvent",
new Class[] { Capture.class });
} catch (Exception e) {
// no such method, or an error.. which is fine, just ignore
}
}
/**
* invokeEvent() and read() are synchronized so that they can not be
* called simultaneously. when they were not synchronized, this caused
@@ -613,15 +619,6 @@ public class Capture extends PImage implements PConstants {
}
}
}
/**
* Returns the name of the source element used for capture.
*
* @return String
*/
public String getSource() {
return source;
}
// The main initialization here.
protected void initGStreamer(PApplet parent, int requestWidth, int requestHeight, String sourceName,
@@ -743,52 +740,32 @@ public class Capture extends PImage implements PConstants {
newFrame = false;
}
protected void initResAndFps() {
// The pipeline needs to be in playing state to be able to
// report the supported resolutions and framerates of the
// capture device.
getSuppResAndFpsList();
/*
boolean suppRes = !(0 < suppResList.size()); // Default value is true if resolution list empty.
for (int i = 0; i < suppResList.size(); i++) {
int[] wh = (int[])suppResList.get(i);
if (reqWidth == wh[0] && reqHeight == wh[1]) {
protected void checkResolutions() {
boolean suppRes = false;
for (int i = 0; i < resolutions.size(); i++) {
Resolution res = (Resolution) resolutions.get(i);
if (reqWidth == res.width && reqHeight == res.height &&
fps.equals("") || fps.equals(res.fpsString)) {
suppRes = true;
break;
}
}
if (!suppRes) {
System.err.println("The requested resolution of " + reqWidth + "x" + reqHeight + " is not supported by the capture device.");
String fpsStr = "";
if (!fps.equals("")) {
fpsStr = ", " + fps + "fps";
}
System.err.println("The requested resolution of " + reqWidth + "x" + reqHeight + fpsStr + " is not supported by selected the capture device.");
System.err.println("Use one of the following resolutions instead:");
for (int i = 0; i < suppResList.size(); i++) {
int[] wh = (int[])suppResList.get(i);
System.err.println(wh[0] + "x" + wh[1]);
for (int i = 0; i < resolutions.size(); i++) {
Resolution res = (Resolution) resolutions.get(i);
System.err.println(res.toString());
}
}
boolean suppFps = !(0 < suppFpsList.size()); // Default value is true if fps list empty.
for (int i = 0; i < suppFpsList.size(); i++) {
String str = (String)suppFpsList.get(i);
if (fps.equals("") || fps.equals(str)) {
suppFps = true;
break;
}
}
if (!suppFps) {
System.err.println("The requested framerate of " + fps + " is not supported by the capture device.");
System.err.println("Use one of the following framerates instead:");
for (int i = 0; i < suppFpsList.size(); i++) {
String str = (String)suppFpsList.get(i);
System.err.println(str);
}
}
*/
}
}
protected void getSuppResAndFpsList() {
protected void getResolutions() {
resolutions = new ArrayList<Resolution>();
for (Element src : gpipeline.getSources()) {
java/libraries/video/src/processing/video/Resolution.java
+4
View File
@@ -48,4 +48,8 @@ public class Resolution {
this.fps = source.fps;
this.fpsString = source.fpsString;
}
public String toString() {
return width + "x" + height + ", " + PApplet.nfc(fps, 2) + " (" + fpsString +")";
}
}