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Merge "media: clarify notes in MediaCodec doc" into nyc-mr1-dev

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Lajos Molnar
2016-07-15 00:25:29 +00:00
committed by Android (Google) Code Review
parent 70b06cc62f 024005e5e4
commit 82d886434d
1 changed files with 7 additions and 5 deletions
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12
media/java/android/media/MediaCodec.java
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@@ -133,9 +133,10 @@ import java.util.Map;
<p class=note>
Note that on some devices the slice-height is advertised as 0. This could mean either that the
slice-height is the same as the frame height, or that the slice-height is the frame height
aligned to some value (usually a power of 2). Unfortunately, there is no way to tell the actual
slice height in this case. Furthermore, the vertical stride of the {@code U} plane in planar
formats is also not specified or defined, though usually it is half of the slice height.
aligned to some value (usually a power of 2). Unfortunately, there is no standard and simple way
to tell the actual slice height in this case. Furthermore, the vertical stride of the {@code U}
plane in planar formats is also not specified or defined, though usually it is half of the slice
height.
<p>
The {@link MediaFormat#KEY_WIDTH} and {@link MediaFormat#KEY_HEIGHT} keys specify the size of the
video frames; however, for most encondings the video (picture) only occupies a portion of the
@@ -620,8 +621,9 @@ import java.util.Map;
mode} will be automatically applied with one exception:
<p class=note>
Prior to the {@link android.os.Build.VERSION_CODES#M} release, software decoders may not
have applied the rotation when being rendered onto a Surface. Unfortunately, there is no way to
identify software decoders, or if they apply the rotation other than by trying it out.
have applied the rotation when being rendered onto a Surface. Unfortunately, there is no standard
and simple way to identify software decoders, or if they apply the rotation other than by trying
it out.
<p>
There are also some caveats.
<p class=note>