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media: document output image crop and layout for MediaCodec

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These use hidden, now deprecated MediaFormat keys.

Bug: 14127601
Change-Id: Ib51e4ef41204c9be34ad571300fcb7860feb504e
This commit is contained in:
Lajos Molnar
2016-06-23 16:34:48 -07:00
parent 34ccbe035a
commit 2c35fd0eba
2 changed files with 77 additions and 4 deletions
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10
media/java/android/media/MediaFormat.java
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@@ -295,17 +295,19 @@ public final class MediaFormat {
* Stride (or row increment) is the difference between the index of a pixel
* and that of the pixel directly underneath. For YUV 420 formats, the
* stride corresponds to the Y plane; the stride of the U and V planes can
* be calculated based on the color format.
* be calculated based on the color format, though it is generally undefined
* and depends on the device and release.
* The associated value is an integer, representing number of bytes.
*/
public static final String KEY_STRIDE = "stride";
/**
* A key describing the plane height of a multi-planar (YUV) video bytebuffer layout.
* Slice height (or plane height) is the number of rows that must be skipped to get
* from the top of the Y plane to the top of the U plane in the bytebuffer. In essence
* Slice height (or plane height/vertical stride) is the number of rows that must be skipped
* to get from the top of the Y plane to the top of the U plane in the bytebuffer. In essence
* the offset of the U plane is sliceHeight * stride. The height of the U/V planes
* can be calculated based on the color format.
* can be calculated based on the color format, though it is generally undefined
* and depends on the device and release.
* The associated value is an integer, representing number of rows.
*/
public static final String KEY_SLICE_HEIGHT = "slice-height";