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authorMathias Agopian <mathias@google.com>2011-03-01 14:05:22 -0800
committerMathias Agopian <mathias@google.com>2011-03-02 13:51:21 -0800
commit58a7775d3e12efdc5aaaf19d0ac5e487d622cf36 (patch)
tree01da0277b44c18963dba500dae641b4f6526fc64 /graphics/java
parent525af5d5b0fcd4de9bac2f4be016cdd2f3534a40 (diff)
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fix YV12 documentation
Change-Id: I9a2022101930721a3b3bacc95b02ca21d05f21bb
Diffstat (limited to 'graphics/java')
-rw-r--r--graphics/java/android/graphics/ImageFormat.java22
1 files changed, 16 insertions, 6 deletions
diff --git a/graphics/java/android/graphics/ImageFormat.java b/graphics/java/android/graphics/ImageFormat.java
index 39a3b05..b8e9384 100644
--- a/graphics/java/android/graphics/ImageFormat.java
+++ b/graphics/java/android/graphics/ImageFormat.java
@@ -31,15 +31,25 @@ public class ImageFormat {
public static final int RGB_565 = 4;
/**
- * Planar 4:2:0 YCrCb format. This format assumes an horizontal stride of 16
- * pixels for all planes and an implicit vertical stride of the image
- * height's next multiple of two.
- * y_size = stride * ALIGN(height, 2)
- * c_size = ALIGN(stride/2, 16) * height
+ * Android YUV format:
+ *
+ * This format is exposed to software decoders and applications.
+ *
+ * YV12 is a 4:2:0 YCrCb planar format comprised of a WxH Y plane followed
+ * by (W/2) x (H/2) Cr and Cb planes.
+ *
+ * This format assumes
+ * - an even width
+ * - an even height
+ * - a horizontal stride multiple of 16 pixels
+ * - a vertical stride equal to the height
+ *
+ * y_size = stride * height
+ * c_size = ALIGN(stride/2, 16) * height/2
* size = y_size + c_size * 2
* cr_offset = y_size
* cb_offset = y_size + c_size
- *
+ *
* Whether this format is supported by the camera hardware can be determined
* by
* {@link android.hardware.Camera.Parameters#getSupportedPreviewFormats()}.