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android jpeg compression support (#658)

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*  * removed some of the re-parsing of the output image byte array
 * removed re-saving of output file
 * moved image processing onto an async task to allow camera to be used while processing is running

* added jpeg compression support for android

* move explanation to correct bit of docs
This commit is contained in:
Nick Pomfret
2017-04-06 08:28:47 +02:00
committed by Tomas Roos
parent 5097f95c6f
commit 5c54275aec
3 changed files with 14 additions and 25 deletions
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android/src/main/java/com/lwansbrough/RCTCamera/RCTCameraModule.java
+9 -4
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@@ -575,9 +575,14 @@ public class RCTCameraModule extends ReactContextBaseJavaModule
promise.reject("Error mirroring image", e);
}
int jpegQualityPercent = 80;
if(options.hasKey("jpegQuality")) {
jpegQualityPercent = options.getInt("jpegQuality");
}
switch (options.getInt("target")) {
case RCT_CAMERA_CAPTURE_TARGET_MEMORY:
String encoded = mutableImage.toBase64();
String encoded = mutableImage.toBase64(jpegQualityPercent);
WritableMap response = new WritableNativeMap();
response.putString("data", encoded);
promise.resolve(response);
@@ -590,7 +595,7 @@ public class RCTCameraModule extends ReactContextBaseJavaModule
}
try {
mutableImage.writeDataToFile(cameraRollFile, options);
mutableImage.writeDataToFile(cameraRollFile, options, jpegQualityPercent);
} catch (IOException e) {
promise.reject("failed to save image file", e);
return;
@@ -610,7 +615,7 @@ public class RCTCameraModule extends ReactContextBaseJavaModule
}
try {
mutableImage.writeDataToFile(pictureFile, options);
mutableImage.writeDataToFile(pictureFile, options, 85);
} catch (IOException e) {
promise.reject("failed to save image file", e);
return;
@@ -628,7 +633,7 @@ public class RCTCameraModule extends ReactContextBaseJavaModule
}
try {
mutableImage.writeDataToFile(tempFile, options);
mutableImage.writeDataToFile(tempFile, options, 85);
} catch (IOException e) {
promise.reject("failed to save image file", e);
return;