Don't call SetPreviewFormat if capturing to textures.

talk/app/webrtc/java/android/org/webrtc/VideoCapturerAndroid.java

Index: talk/app/webrtc/java/android/org/webrtc/VideoCapturerAndroid.java
diff --git a/talk/app/webrtc/java/android/org/webrtc/VideoCapturerAndroid.java b/talk/app/webrtc/java/android/org/webrtc/VideoCapturerAndroid.java
index 7fa32f8050ecc8476641ef7fb94e90cffb47a08d..2bfa9787ed9a60c2556d320b95808cc1fc8811ac 100644
--- a/talk/app/webrtc/java/android/org/webrtc/VideoCapturerAndroid.java
+++ b/talk/app/webrtc/java/android/org/webrtc/VideoCapturerAndroid.java
@@ -550,7 +550,10 @@ public class VideoCapturerAndroid extends VideoCapturer implements
       parameters.setPreviewFpsRange(captureFormat.minFramerate, captureFormat.maxFramerate);
     }
     parameters.setPreviewSize(captureFormat.width, captureFormat.height);
-    parameters.setPreviewFormat(captureFormat.imageFormat);
+
+    if (!isCapturingToTexture) {
+      parameters.setPreviewFormat(captureFormat.imageFormat);
+    }
     // Picture size is for taking pictures and not for preview/video, but we need to set it anyway
     // as a workaround for an aspect ratio problem on Nexus 7.
     final android.hardware.Camera.Size pictureSize =