TextureView中的抗锯齿
TextureView中的抗锯齿
提问于 2012-09-18 17:35:27
我试着用SurfaceView和TextureView播放同一个视频，注意到用TextureView渲染的图像比用SurfaceView渲染的图像更有锯齿(不那么“平滑”)。
这是什么原因呢？有没有办法将TextureView的渲染配置得更好？
TextureView的用法如下：
TextureView textureView = new TextureView(this);
textureView.setSurfaceTextureListener(new SurfaceTextureListener() {
@Override
public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int width, int height) {
Log.i("test", "onSurfaceTextureAvailable()");
MediaPlayer player = MediaPlayer.create(TestActivity.this, Uri.parse(VIDEO_URL));
Surface surface = new Surface(surfaceTexture);
player.setSurface(surface);
player.start();
}
@Override
public void onSurfaceTextureUpdated(SurfaceTexture surface) {
Log.i("test", "onSurfaceTextureUpdated()");
}
@Override
public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {
Log.i("test", "onSurfaceTextureSizeChanged()");
}
@Override
public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
Log.i("test", "onSurfaceTextureDestroyed()");
return false;
}
});
setContentView(textureView);而对于SurfaceView
SurfaceView surfaceView = new SurfaceView(this);
surfaceView.getHolder().addCallback(new Callback() {
@Override
public void surfaceCreated(SurfaceHolder holder) {
Log.i("test", "surfaceCreated()");
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i("test", "surfaceDestroyed()");
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
Log.i("test", "surfaceChanged()");
MediaPlayer player = MediaPlayer.create(TestActivity.this, Uri.parse(VIDEO_URL));
player.setSurface(holder.getSurface());
player.start();
}
});
setContentView(surfaceView);回答 1
Stack Overflow用户
回答已采纳
发布于 2012-09-19 16:50:29
嗯，似乎在TextureView上应用缩放(而不是1)确实达到了我想要的“平滑”效果。
textureView.setScaleX(1.00001f);这听起来像是一个奇怪的hack...but，它是有效的。挖掘出在缩放中做了什么来改变渲染方面是很有趣的……
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原文链接：
https://stackoverflow.com/questions/12474260
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