This change alters the conditions under which the onFrameAvailable
callback gets called by the C++ SurfaceTexture class. The new behavior
is to call the callback whenever a frame gets queued that will be
visible to the buffer consumer. This means that buffers queued in
synchronous mode always trigger the callback, as those buffers will
remain pending until they are consumed. Buffers queued in asynchronous
mode will only trigger the callback if there was not previously an
unconsumed buffer pending.
The new behavior means that a consumer should perform a draw operation
exactly once for every onFrameAvailable call that it recieves. This
change also modifies SurfaceFlinger and the SurfaceTexture JNI to
support of the new behavior.
Change-Id: I8b2c6e00961d3d58b11c6af50b555b6e4c5f5b40
This adds a new ParcelSurfaceTexture.java class that can be instantiated with
a SurfaceTexture and used to send the corresponding ISurfaceTexture interface
to another process via Binder. The ParcelSurfaceTexture java object can then
be used to create an ANativeWindow based on the SurfaceTextureClient interface.
Change-Id: Ie38ea948b866e52f36a6d0f6cde19b54a8546817
Like getTransformMatrix, getTimestamp provides a timestamp for the
OpenGL texture produced by the latest call to updateTexImage().
Timestamps are measured in nanoseconds, and are monotonically
increasing. Other properties of the timestamps (zero point,
comparability) depend on the source providing frames to the
SurfaceTexture, and need to be documented by the source.
bug:3300707
Change-Id: I380d94926d0e9f1c77bb5c1576b72d5ef4e2eba1
API addition: The timestamps are represented as nanoseconds from some
arbitrary time point. Like the SurfaceTexture transform matrix, the
timestamp retrieved by getTimestamp is for the last frame sent to the
GL texture using updateTexImage().
Camera HAL change: Expect vendors to set these timestamps using
native_window_set_buffers_timestamp(). For now, they are
autogenerated by SurfaceTextureClient if set_buffers_timestamp() is
never called, but such timing is likely not accurate enough to pass a
CTS test.
bug:3300707
Change-Id: Ife131a0c2a826ac27342e11b8a6c42ff49e1bea7
This change adds additional documentation explaining how a
SurfaceTexture should be used in OpenGL ES. It describes some of the
limitations of using the GL_TEXTURE_EXTERNAL_OES texture target.
Change-Id: I7424c1b422e4f402e87372e8b361391fbec82c5c
This change enables the use of a SurfaceTexture in place of a Surface
as the video sink for an android.media.MediaPlayer. The new API
MediaPlayer.setTexture is currently hidden.
This includes:
- New Java and C++ interfaces
- C++ plumbing and implementation (JNI, Binder)
- Stagefright AwesomePlayer and NuPlayer use ANativeWindow
(either Surface or SurfaceTextureClient)
Change-Id: I2b568bee143d9eaf3dfc6cc4533c1bebbd5afc51
This change adds additional documentation explaining how a
SurfaceTexture should be used in OpenGL ES. It describes some of the
limitations of using the GL_TEXTURE_EXTERNAL_OES texture target.
Change-Id: I9d3446a012376166b6c598b827a0aa0e9585d00f
This change implements the onFrameAvailable callback for the
SurfaceTexture java class. It includes the C++ SurfaceTexture code as
well as the JNI and Java code to enable the callback.
Change-Id: Ifd8b8e7ad46ee70cba6da1c2e96dab8045d1ea30
