[英]Android camera preview stretched using Grafika CameraCapture code
I'm looking for help with an issue I'm facing using Grafika's CameraCaptureActivity code. 我正在寻找帮助解决我使用Grafika的CameraCaptureActivity代码所面临的问题。 I want to build an app that can record camera and display a preview, so this sample and code looked like exactly what I wanted and so far it's been great, this issue appart.
我想构建一个可以记录相机并显示预览的应用程序,所以这个样本和代码看起来就像我想要的那样,到目前为止它很棒,这个问题appart。
The issue I have is that when the camera preview size doesn't match the exact size of the GLSurfaceView
I use to display the preview it shows a stretched preview. 我遇到的问题是,当相机预览尺寸与用于显示预览的
GLSurfaceView
的确切尺寸不匹配时,它会显示拉伸预览。
Here's how it looks: 以下是它的外观:
As you can see it's stretched horizontally since the note sheet is a perfect square. 你可以看到它是水平拉伸的,因为音符表是一个完美的正方形。
For this precise exemple on a Samsung Galaxy S4, the camera preview size is 1280x720
(extracted from available preview sizes using Camera2
API), and the GLSurfaceView
is 1920x1080
to cover the entire screen. 对于Samsung Galaxy S4的精确示例,相机预览尺寸为
1280x720
(使用Camera2
API从可用的预览尺寸中提取), GLSurfaceView
为1920x1080
以覆盖整个屏幕。
When does it appear? 什么时候出现?
The issue appears when the SurfaceView is upscaled compared to the Camera output, even if I always make sure the ratio remains correct ( 1920x1080
= 1,5 * 1280x720
). 当SurfaceView与Camera输出相比进行放大时,即使我始终确保比率保持正确(
1920x1080
= 1,5 * 1280x720
),也会出现此问题。
What code are you using? 你用的是什么代码?
I use Grafika's code, including: 我使用Grafika的代码,包括:
Some log? 有些日志?
Here's what SurfaceFlinger dump looks like: 这是SurfaceFlinger转储的样子:
Hardware Composer state (version 01030000):
mDebugForceFakeVSync=0
Display[0] configurations (* current):
* 0: 1080x1920, xdpi=442.450989, ydpi=439.351013, secure=1 refresh=16666667
numHwLayers=3, flags=00000000
type | handle | hint | flag | tr | blnd | format | source crop(l,t,r,b) | frame | dirtyRect | name
------------+----------+----------+----------+----+-------+----------+-----------------------------------+---------------------------+-------------------
HWC | b3b12ba0 | 0002 | 0000 | 00 | 0100 | RGB_888 | 0.0, 0.0, 1080.0, 1920.0 | 0, 0, 1080, 1920 | [ 0, 0, 1080, 1920] | SurfaceView
HWC | b3d12740 | 0002 | 0000 | 00 | 0105 | RGBA_8888 | 0.0, 0.0, 1065.0, 1905.0 | 0, 0, 1065, 1905 | [ 0, 0, 1065, 1905] | com.mybundle.myapp/com.mybundle.myapp.activity.MyActivity
FB TARGET | b6a55c40 | 0000 | 0000 | 00 | 0105 | RGBA_8888 | 0.0, 0.0, 1080.0, 1920.0 | 0, 0, 1080, 1920 | [ 0, 0, 0, 0] | HWC_FRAMEBUFFER_TARGET
Layer 0xb4094000 (SurfaceView)
Region transparentRegion (this=0xb4094160, count=1)
[ 0, 0, 0, 0]
Region visibleRegion (this=0xb4094008, count=1)
[ 0, 0, 1920, 1080]
layerStack= 0, z= 21015, pos=(0,0), size=(1920,1080), crop=( 0, 0,1920,1080), isOpaque=1, invalidate=0, alpha=0xff, flags=0x00000002, tr=[1.00, 0.00][0.00, 1.00]
client=0xb66190c0
format= 4, activeBuffer=[1080x1920:1536, 3], queued-frames=0, mRefreshPending=0
mTexName=116 mCurrentTexture=0
mCurrentCrop=[0,0,0,0] mCurrentTransform=0x7
mAbandoned=0
-BufferQueue mMaxAcquiredBufferCount=1, mDequeueBufferCannotBlock=0, default-size=[1920x1080], default-format=4, transform-hint=04, FIFO(0)={}
>[00:0xb1c18500] state=ACQUIRED, 0xb3b12ba0 [1080x1920:1536, 3]
Camera preview size code? 相机预览尺寸代码?
StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
// Retrieve display size
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
Point displaySize = new Point();
display.getSize(displaySize);
// Choose the sizes for camera preview
mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class),
displaySize.x, displaySize.y, captureWidth, captureHeight);
private static Size chooseOptimalSize(Size[] choices, int screenWidth, int screenHeight, int captureWidth, int captureHeight)
{
// Collect the supported resolutions that are at least as big as the screen && wanted capture size
List<Size> bigEnough = new ArrayList<>();
// Collect the supported resolutions that are at least as big as the wanted capture size but < to screensize
List<Size> smallerButEnough = new ArrayList<>();
for (Size option : choices) {
if (option.getHeight() == option.getWidth() * captureHeight / captureWidth) {
if( option.getWidth() >= screenWidth && option.getHeight() >= screenHeight )
{
bigEnough.add(option);
}
else
{
smallerButEnough.add(option);
}
}
}
// Pick the smallest of those, assuming we found any
if (bigEnough.size() > 0)
{
return Collections.min(bigEnough, new CompareSizesByArea());
}
// Pick the biggest of those, assuming we found any
else if( smallerButEnough.size() > 0 )
{
return Collections.max(smallerButEnough, new CompareSizesByArea());
}
else
{
Log.e(TAG, "Couldn't find any suitable preview size");
return choices[0];
}
}
What have you tried? 你有什么尝试?
I first thought it was a Camera2
issue, so I tried to use only the old Camera API, but result is the same. 我首先认为这是一个
Camera2
问题,所以我试图只使用旧的Camera API,但结果是一样的。
Then I thought it was a ratio issue, but as you can see the ratio here is ok horizontally and vertically. 然后我认为这是一个比率问题,但你可以看到这里的比例水平和垂直都可以。
My bet is that there's an OpenGL transformation to apply when the Surface is resized but I'm a pure noob in OpenGL so I haven't been able to find anything that works. 我敢打赌,当Surface调整大小时,有一个OpenGL转换应用,但我在OpenGL中是一个纯粹的菜鸟,所以我找不到任何有用的东西。 I try added those lines but it doesn't help:
我尝试添加这些行,但它没有帮助:
@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
Log.d(TAG, "onSurfaceChanged " + width + "x" + height);
gl.glViewport(0, 0, width, height);
gl.glClear(GLES10.GL_COLOR_BUFFER_BIT | GLES10.GL_DEPTH_BUFFER_BIT);
}
Another example, right from Grafika: 另一个例子,来自格拉菲卡:
Here's an other example of the issue, right from the Grafika app. 这是Grafika应用程序中的另一个问题示例。
Phone: Galaxy S3 Neo ( GT-I9301L
) - Android 4.4.2 电话:Galaxy S3 Neo(
GT-I9301L
) - Android 4.4.2
The phone has a 1280x720
screen, camera opened with the 640x480
resolution, displayed in a 573x430
. 这款手机拥有
1280x720
屏幕,相机以640x480
分辨率打开,以573x430
显示。 Here's how it looks: 以下是它的外观:
SurfaceFlinger logs: SurfaceFlinger日志:
Hardware Composer state (version 1030000):
mDebugForceFakeVSync=0
Display[0] : 720x1280, xdpi=304.799011, ydpi=306.716003, refresh=16666667
numHwLayers=4, flags=00000000
type | handle | hints | flags | tr | blend | format | source crop | frame name
------------+----------+----------+----------+----+-------+----------+---------------------------------+--------------------------------
HWC | b84a3d18 | 00000002 | 00000000 | 00 | 00100 | 00000002 | [ 0.0, 0.0, 430.0, 573.0] | [ 32, 353, 462, 926] SurfaceView
HWC | b841b080 | 00000002 | 00000000 | 00 | 00105 | 00000001 | [ 0.0, 0.0, 670.0, 1280.0] | [ 0, 0, 670, 1280] com.android.grafika/com.android.grafika.CameraCaptureActivity
HWC | b8423250 | 00000002 | 00000000 | 00 | 00105 | 00000001 | [ 0.0, 0.0, 50.0, 1280.0] | [ 670, 0, 720, 1280] StatusBar
FB TARGET | b8412d50 | 00000000 | 00000000 | 00 | 00105 | 00000001 | [ 0.0, 0.0, 720.0, 1280.0] | [ 0, 0, 720, 1280] HWC_FRAMEBUFFER_TARGET
+ Layer 0xb8416080 (SurfaceView) id=112
Region transparentRegion (this=0xb84169d0, count=1)
[ 0, 0, 0, 0]
Region visibleRegion (this=0xb8416088, count=1)
[353, 258, 926, 688]
layerStack= 0, z= 21015, pos=(353,258), size=( 573, 430), crop=( 0, 0, 573, 430), isOpaque=1, invalidate=0, alpha=0xff, flags=0x00000000, tr=[1.00, 0.00][0.00, 1.00]
client=0xb841d7c8
format= 4, activeBuffer=[ 430x 573: 448, 2], queued-frames=0, mRefreshPending=0
mTexName=95 mCurrentTexture=1
mCurrentCrop=[0,0,0,0] mCurrentTransform=0x7
mAbandoned=0
-BufferQueue mMaxAcquiredBufferCount=1, mDequeueBufferCannotBlock=0, default-size=[573x430], default-format=4, transform-hint=04, FIFO(0)={}
[00:0xb84439a8] state=FREE , 0xb849a528 [ 430x 573: 448, 2]
>[01:0xb8421128] state=ACQUIRED, 0xb84a3d18 [ 430x 573: 448, 2]
[02:0xb84238e8] state=FREE , 0xb84432f8 [ 430x 573: 448, 2]
Grafika's app log: Grafika的应用程序日志:
04-18 18:06:49.954 14383-14383/com.android.grafika D/Grafika: onCreate complete: com.android.grafika.CameraCaptureActivity@42adc288
04-18 18:06:49.954 14383-14383/com.android.grafika D/Grafika: onResume -- acquiring camera
04-18 18:06:50.064 14383-14383/com.android.grafika D/Grafika: Camera preferred preview size for video is 1920x1080
04-18 18:06:50.064 14383-14383/com.android.grafika D/Grafika-AFL: Setting aspect ratio to 1.3333333333333333 (was -1.0)
04-18 18:06:50.064 14383-14383/com.android.grafika D/Grafika: onResume complete: com.android.grafika.CameraCaptureActivity@42adc288
04-18 18:06:50.064 14383-32312/com.android.grafika D/Grafika: setCameraPreviewSize
04-18 18:06:50.094 14383-14383/com.android.grafika D/Grafika-AFL: onMeasure target=1.3333333333333333 width=[MeasureSpec: EXACTLY 1216] height=[MeasureSpec: EXACTLY 526]
04-18 18:06:50.094 14383-14383/com.android.grafika D/Grafika-AFL: new size=701x526 + padding 0x0
04-18 18:06:50.094 14383-14383/com.android.grafika D/Grafika-AFL: onMeasure target=1.3333333333333333 width=[MeasureSpec: EXACTLY 1216] height=[MeasureSpec: EXACTLY 430]
04-18 18:06:50.094 14383-14383/com.android.grafika D/Grafika-AFL: new size=573x430 + padding 0x0
04-18 18:06:50.124 14383-32312/com.android.grafika D/Grafika: onSurfaceCreated
04-18 18:06:50.134 14383-32312/com.android.grafika D/Grafika: Created program 3 (TEXTURE_EXT)
04-18 18:06:50.144 14383-32312/com.android.grafika D/Grafika: onSurfaceChanged 573x430
04-18 18:06:50.144 14383-32312/com.android.grafika D/Grafika: Updating filter to 0
04-18 18:06:50.154 14383-14383/com.android.grafika D/Grafika: onItemSelected: 0
04-18 18:06:50.154 14383-14383/com.android.grafika D/Grafika: CameraHandler [Handler (com.android.grafika.CameraCaptureActivity$CameraHandler) {42aeec70}]: what=0
04-18 18:06:50.514 14383-14383/com.android.grafika D/Grafika-AFL: onMeasure target=1.3333333333333333 width=[MeasureSpec: EXACTLY 1216] height=[MeasureSpec: EXACTLY 526]
04-18 18:06:50.514 14383-14383/com.android.grafika D/Grafika-AFL: new size=701x526 + padding 0x0
04-18 18:06:50.514 14383-14383/com.android.grafika D/Grafika-AFL: onMeasure target=1.3333333333333333 width=[MeasureSpec: EXACTLY 1216] height=[MeasureSpec: EXACTLY 430]
04-18 18:06:50.514 14383-14383/com.android.grafika D/Grafika-AFL: new size=573x430 + padding 0x0
04-18 18:06:50.544 14383-14383/com.android.grafika D/AbsListView: onVisibilityChanged() is called, visibility : 4
04-18 18:06:50.544 14383-14383/com.android.grafika D/AbsListView: unregisterIRListener() is called
So... 所以...
If one of you guys have an idea of how to make it work, I would love to hear from him. 如果你们其中一个人知道如何让它发挥作用,我很乐意听取他的意见。
Thanks! 谢谢!
i`m sorry for my last answer, it was stupid and didn`t resolve problem. 我很抱歉我的最后一个答案,这是愚蠢的,并没有解决问题。 But i founded another solution, and tested it on 5 device using different camera aspect ratio.
但我创建了另一种解决方案,并使用不同的相机宽高比在5台设备上进行了测试。 As i understood, you`re using Grafika code.
据我所知,你使用的是Grafika代码。 Try to remove
parms.setRecordingHint(true);
尝试删除
parms.setRecordingHint(true);
So now i`m using only param.setPictureSize() param.setPreviewSize()
with same aspect ratio in camera params. 所以现在我只使用
param.setPictureSize() param.setPreviewSize()
在相机参数中具有相同的宽高比。 Also i set gl view`s size with that aspect, i made it by myself.In grafika it used fixed size, afaik. 另外我用这个方面设置了gl视图的大小,我自己做了。在grafika它使用固定大小,afaik。 Hope it`ll help you.
希望它能帮到你。
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