Solution: I was not actually setting the camera preview but rather scaling the default preview it came with. You need to assign the parameters back to the camera, because _camera.getParamters.setPreviewSize() does not work!
I am working on getting Android cameras to preview on my phone (ideally fullscreen).
However I've run into a situation where I feel both the hardware and software are conspiring against me :/
I get a list of camera supported screen sizes. For half the phones (about 6 of my 12 devices) this works fine when I set the preview match the closest preview for the screen.
However on the other half, the preview is stretched and skewed. There are a number of posts that exist and claim to address this issue but do not.
The reason I am finding is this: the list of supported camera screen sizes that I am getting from the hardware itself is wrong. Why? Because when manually set the camera up to one of its highest supported sizes the aspect ratio is still off:
_camera.getParameters().setPreviewSize(720,1280);
getHolder().setFixedSize(720, 1280);
For this phone, the screen size is 768 x 1280. The closest supported screen size is 720 x 1280. Setting it to this value still results in a distorted image. The next supported screen size resolution is 1280 x 960. Which to me, is interesting, because its saying its supporting 2 different aspect ratios, but some of these 'supported' aspect ratios are skewed. i.e. it says its supports 4:3 and 16:9, but only the 4:3 comes out looking normal!
getHolder().setFixedSize(720, 960); //fixes issue even though this is NOT a supported screen size
When I force the surface holder to match a 4:3 aspect ratio, by using the non supported screen size, 720 x 960, voila, the camera preview comes out normal.
My question is, how am I supposed to know what the aspect ratio is for the camera in a camera with supported aspect ratios different than what it says?
Update
Digging into my phone specifics:
http://www.gsmarena.com/lg_nexus_4_e960-5048.php
This phone has a camera which saves images as 3264 x 2448. A 4:3 aspect ratio. I am going to see if I can fetch this data from the phone and use THAT for setting the desired aspect ratio.
Update 2
Using
System.out.println("Camera picture size is " + _camera.getParameters().getPictureSize().width + " x " + _camera.getParameters().getPictureSize().height);
It gives me 640 x 480. Which with a little maths is a 4:3 aspect ratio. I then use this and scale my camera appropriately.
It's hacky, but it gets the job done!
//Because the camera LIES about supporting both 16:9 and 4:3 we must find the actual one from the picture size
void determineCameraAspectRatio()
{
int cameraWidth = _camera.getParameters().getPictureSize().width;
int cameraHeight = _camera.getParameters().getPictureSize().height;
if( cameraWidth*3 == cameraHeight*4)
{
System.out.println("4:3");
}
if( cameraWidth*9 == cameraHeight*16)
{
System.out.println("16:9");
}
}
And apply the fix to the camera:
if(_is4By3AspectRatio)
{
height = (Helper.screenWidthPX(_context) * 4)/3;
}else//16:9
{
height = (Helper.screenWidthPX(_context) * 16)/9;
}
_camera.getParameters().setPreviewSize(Helper.screenWidthPX(_context),height);
getHolder().setFixedSize(Helper.screenWidthPX(_context),height);
}
Update
This works for a lot of phones but on some even THIS is wrong. The Nexus 6 reports a back facing camera aspect ratio of 4:3 and its highest supported ratio is 1440 x 1920 but setting it to this results in a skewed image. I have absolutely no idea why. None of this makes sense. It says it wants a 4:3 aspect ratio for the picture, but only display properly with a 16:9 ratio (front and back). SO WEIRD
Here is the sysdump on the surfaceFlinger
SurfaceFlinger
Build configuration: [sf] [libui] [libgui]
Sync configuration: [using: EGL_ANDROID_native_fence_sync EGL_KHR_wait_sync]
DispSync configuration: app phase 0 ns, sf phase 0 ns, present offset 0 ns (refresh 16666667 ns)
Visible layers (count = 10)
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Region transparentRegion (this=0xb8919d88, count=1)
[ 0, 0, 0, 0]
Region visibleRegion (this=0xb8919c30, count=1)
[ 0, 0, 0, 0]
layerStack= 0, z= 0, pos=(0,0), size=( 16, 16), crop=( 0, 0, -1, -1), isOpaque=0, invalidate=0, alpha=0xff, flags=0x00000001, tr=[1.00, 0.00][0.00, 1.00]
client=0xb88ebac8
format= 0, activeBuffer=[ 0x 0: 0, 0], queued-frames=0, mRefreshPending=0
mTexName=4 mCurrentTexture=-1
mCurrentCrop=[49152,0,415,-1] mCurrentTransform=0
mAbandoned=0
-BufferQueue mMaxAcquiredBufferCount=1, mDequeueBufferCannotBlock=0, default-size=[1x1], default-format=1, transform-hint=00, FIFO(0)={}
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Region transparentRegion (this=0xb8865b30, count=1)
[ 0, 0, 0, 0]
Region visibleRegion (this=0xb88659d8, count=1)
[ 0, 0, 0, 0]
layerStack= 0, z= 0, pos=(0,0), size=( 16, 16), crop=( 0, 0, -1, -1), isOpaque=0, invalidate=0, alpha=0xff, flags=0x00000001, tr=[1.00, 0.00][0.00, 1.00]
client=0xb88ebac8
format= 0, activeBuffer=[ 0x 0: 0, 0], queued-frames=0, mRefreshPending=0
mTexName=5 mCurrentTexture=-1
mCurrentCrop=[0,0,0,0] mCurrentTransform=0
mAbandoned=0
-BufferQueue mMaxAcquiredBufferCount=1, mDequeueBufferCannotBlock=0, default-size=[1x1], default-format=1, transform-hint=00, FIFO(0)={}
+ LayerDim 0xb886d000 (DimLayer)
Region transparentRegion (this=0xb886d160, count=1)
[ 0, 0, 0, 0]
Region visibleRegion (this=0xb886d008, count=1)
[ 0, 0, 0, 0]
layerStack= 0, z= 0, pos=(0,0), size=( 16, 16), crop=( 0, 0, -1, -1), isOpaque=0, invalidate=0, alpha=0xff, flags=0x00000001, tr=[1.00, 0.00][0.00, 1.00]
client=0xb88ebac8
format= 0, activeBuffer=[ 0x 0: 0, 0], queued-frames=0, mRefreshPending=0
mTexName=6 mCurrentTexture=-1
mCurrentCrop=[-16843010,-16843010,-16843010,-16843010] mCurrentTransform=0
mAbandoned=0
-BufferQueue mMaxAcquiredBufferCount=1, mDequeueBufferCannotBlock=0, default-size=[1x1], default-format=1, transform-hint=00, FIFO(0)={}
+ Layer 0xb88f9580 (com.android.phasebeam.PhaseBeamWallpaper)
Region transparentRegion (this=0xb88f96e0, count=1)
[ 0, 0, 0, 0]
Region visibleRegion (this=0xb88f9588, count=1)
[ 0, 0, 0, 0]
layerStack= 0, z= 21000, pos=(0,0), size=( 768,1280), crop=( 0, 0, 768,1280), isOpaque=1, invalidate=0, alpha=0xff, flags=0x00000003, tr=[1.00, 0.00][0.00, 1.00]
client=0xb88591d0
format= 2, activeBuffer=[ 768x1280:1024, 3], queued-frames=0, mRefreshPending=0
mTexName=8 mCurrentTexture=1
mCurrentCrop=[0,0,0,0] mCurrentTransform=0
mAbandoned=0
-BufferQueue mMaxAcquiredBufferCount=1, mDequeueBufferCannotBlock=0, default-size=[768x1280], default-format=2, transform-hint=00, FIFO(0)={}
[00:0xb8911cc8] state=FREE , 0xb8868488 [ 768x1280:1024, 3]
>[01:0xb88feb78] state=ACQUIRED, 0xb88fdc40 [ 768x1280:1024, 3]
[02:0xb88ff1c0] state=FREE , 0xb88fedf0 [ 768x1280:1024, 3]
+ Layer 0xb887db18 (SurfaceView)
Region transparentRegion (this=0xb887dc78, count=1)
[ 0, 0, 0, 0]
Region visibleRegion (this=0xb887db20, count=1)
[ 0, 0, 768, 1024]
layerStack= 0, z= 21025, pos=(0,0), size=( 768,1024), crop=( 0, 0, 768,1024), isOpaque=1, invalidate=0, alpha=0xff, flags=0x00000002, tr=[1.00, 0.00][0.00, 1.00]
client=0xb89124b8
format= 4, activeBuffer=[ 640x 480: 640, 11], queued-frames=0, mRefreshPending=0
mTexName=61 mCurrentTexture=3
mCurrentCrop=[0,0,0,0] mCurrentTransform=0x4
mAbandoned=0
-BufferQueue mMaxAcquiredBufferCount=1, mDequeueBufferCannotBlock=0, default-size=[768x1024], default-format=4, transform-hint=00, FIFO(0)={}
[00:0xb8923620] state=DEQUEUED, 0xb89000e0 [ 640x 480: 640, 11]
[01:0xb88784c8] state=DEQUEUED, 0xb8878160 [ 640x 480: 640, 11]
[02:0xb8878550] state=DEQUEUED, 0xb88785f0 [ 640x 480: 640, 11]
>[03:0xb8877120] state=ACQUIRED, 0xb8878638 [ 640x 480: 640, 11]
[04:0xb8913c48] state=DEQUEUED, 0xb886c8a0 [ 640x 480: 640, 11]
[05:0xb88ff0f8] state=DEQUEUED, 0xb8879b08 [ 640x 480: 640, 11]
[06:0xb8900930] state=DEQUEUED, 0xb88c3308 [ 640x 480: 640, 11]
+ Layer 0xb8862be8 (co.pumpup.app/co.pumpup.app.Activities.CameraEditorActivity)
Region transparentRegion (this=0xb8862d48, count=1)
[ 0, 0, 0, 0]
Region visibleRegion (this=0xb8862bf0, count=1)
[ 0, 0, 768, 1280]
layerStack= 0, z= 21030, pos=(0,0), size=( 768,1280), crop=( 0, 0, 768,1280), isOpaque=0, invalidate=0, alpha=0xff, flags=0x00000000, tr=[1.00, 0.00][0.00, 1.00]
client=0xb89124b8
format= 1, activeBuffer=[ 768x1280: 768, 1], queued-frames=0, mRefreshPending=0
mTexName=60 mCurrentTexture=2
mCurrentCrop=[0,0,0,0] mCurrentTransform=0
mAbandoned=0
-BufferQueue mMaxAcquiredBufferCount=1, mDequeueBufferCannotBlock=0, default-size=[768x1280], default-format=1, transform-hint=00, FIFO(0)={}
[00:0xb88ffff8] state=FREE , 0xb88ed258 [ 768x1280: 768, 1]
[01:0xb88fe908] state=FREE , 0xb88ff3d0 [ 768x1280: 768, 1]
>[02:0xb8872348] state=ACQUIRED, 0xb88a6110 [ 768x1280: 768, 1]
+ Layer 0xb88befc0 (FocusedStackFrame)
Region transparentRegion (this=0xb88bf120, count=1)
[ 0, 0, 0, 0]
Region visibleRegion (this=0xb88befc8, count=1)
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client=0xb88ebac8
format= 1, activeBuffer=[ 0x 0: 0, 0], queued-frames=0, mRefreshPending=0
mTexName=3 mCurrentTexture=-1
mCurrentCrop=[524288,327680,0,0] mCurrentTransform=0
mAbandoned=0
-BufferQueue mMaxAcquiredBufferCount=1, mDequeueBufferCannotBlock=0, default-size=[1x1], default-format=1, transform-hint=00, FIFO(0)={}
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Region transparentRegion (this=0xb886fb28, count=1)
[ 0, 0, 0, 0]
Region visibleRegion (this=0xb886f9d0, count=1)
[ 0, 0, 0, 0]
layerStack= 0, z= 22019, pos=(-192,-320), size=(1152,1920), crop=( 0, 0, -1, -1), isOpaque=0, invalidate=0, alpha=0x00, flags=0x00000001, tr=[1.00, 0.00][0.00, 1.00]
client=0xb88ebac8
format= 0, activeBuffer=[ 0x 0: 0, 0], queued-frames=0, mRefreshPending=0
mTexName=7 mCurrentTexture=-1
mCurrentCrop=[-67372037,-67372037,1919905635,-842203036] mCurrentTransform=0
mAbandoned=0
-BufferQueue mMaxAcquiredBufferCount=1, mDequeueBufferCannotBlock=0, default-size=[1152x1920], default-format=1, transform-hint=00, FIFO(0)={}
+ Layer 0xb8900d20 (StatusBar)
Region transparentRegion (this=0xb8900e80, count=1)
[ 0, 0, 0, 0]
Region visibleRegion (this=0xb8900d28, count=1)
[ 0, 0, 0, 0]
layerStack= 0, z= 151000, pos=(0,0), size=( 768, 50), crop=( 0, 0, 768, 50), isOpaque=0, invalidate=0, alpha=0xff, flags=0x00000001, tr=[1.00, 0.00][0.00, 1.00]
client=0xb88fea70
format= 1, activeBuffer=[ 768x 50: 768, 1], queued-frames=0, mRefreshPending=0
mTexName=10 mCurrentTexture=2
mCurrentCrop=[0,0,0,0] mCurrentTransform=0
mAbandoned=0
-BufferQueue mMaxAcquiredBufferCount=1, mDequeueBufferCannotBlock=0, default-size=[768x50], default-format=1, transform-hint=00, FIFO(0)={}
[00:0xb887a088] state=FREE , 0xb8873348 [ 768x 50: 768, 1]
[01:0xb88fe2f8] state=FREE , 0xb89004b8 [ 768x 50: 768, 1]
>[02:0xb8879fd8] state=ACQUIRED, 0xb88773c8 [ 768x 50: 768, 1]
+ Layer 0xb8861748 (NavigationBar)
Region transparentRegion (this=0xb88618a8, count=1)
[ 0, 0, 0, 0]
Region visibleRegion (this=0xb8861750, count=1)
[ 0, 0, 0, 0]
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client=0xb88fea70
format= 1, activeBuffer=[ 768x 96: 768, 1], queued-frames=0, mRefreshPending=0
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-BufferQueue mMaxAcquiredBufferCount=1, mDequeueBufferCannotBlock=0, default-size=[768x96], default-format=1, transform-hint=00, FIFO(0)={}
[00:0xb88fff08] state=FREE , 0xb88fdf68 [ 768x 96: 768, 1]
[01:0xb88c2920] state=FREE , 0xb8862b88 [ 768x 96: 768, 1]
>[02:0xb8913d00] state=ACQUIRED, 0xb88c5138 [ 768x 96: 768, 1]
Displays (1 entries)
+ DisplayDevice: Built-in Screen
type=0, hwcId=0, layerStack=0, ( 768x1280), ANativeWindow=0xb885cd68, orient= 0 (type=00000000), flips=30060, isSecure=1, secureVis=0, powerMode=2, activeConfig=0, numLayers=2
v:[0,0,768,1280], f:[0,0,768,1280], s:[0,0,768,1280],transform:[[1.000,0.000,-0.000][0.000,1.000,-0.000][0.000,0.000,1.000]]
mAbandoned=0
-BufferQueue mMaxAcquiredBufferCount=1, mDequeueBufferCannotBlock=0, default-size=[768x1280], default-format=1, transform-hint=00, FIFO(0)={}
[00:0xb8913f80] state=DEQUEUED, 0xb88642e8 [ 768x1280: 768, 1]
>[01:0xb885fd80] state=ACQUIRED, 0xb8911608 [ 768x1280: 768, 1]
SurfaceFlinger global state:
EGL implementation : 1.4
EGL_QUALCOMM_shared_image EGL_KHR_image EGL_KHR_image_base EGL_QCOM_create_image EGL_KHR_lock_surface EGL_KHR_lock_surface2 EGL_KHR_fence_sync EGL_KHR_cl_eventEGL_KHR_cl_event2EGL_IMG_context_priority EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_texture_3D_image EGL_KHR_gl_renderbuffer_image EGL_EXT_create_context_robustness EGL_ANDROID_blob_cache EGL_ANDROID_framebuffer_target EGL_KHR_create_context EGL_KHR_wait_sync EGL_KHR_gl_colorspace EGL_ANDROID_image_crop EGL_ANDROID_recordable EGL_ANDROID_native_fence_sync EGL_ANDROID_image_native_buffer EGL_KHR_gl_colorspace EGL_IMG_image_plane_attribs
GLES: Qualcomm, Adreno (TM) 320, OpenGL ES 3.0 [email protected] AU@ (GIT@Ia6306ec328)
GL_AMD_compressed_ATC_texture GL_AMD_performance_monitor GL_AMD_program_binary_Z400 GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_robustness GL_EXT_texture_format_BGRA8888 GL_EXT_texture_type_2_10_10_10_REV GL_NV_fence GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth_texture GL_OES_depth24 GL_OES_EGL_image GL_OES_EGL_sync GL_OES_EGL_image_external GL_OES_element_index_uint GL_OES_fbo_render_mipmap GL_OES_fragment_precision_high GL_OES_get_program_binary GL_OES_packed_depth_stencil GL_OES_depth_texture_cube_map GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_texture_3D GL_OES_texture_float GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_half_float GL_OES_vertex_type_10_10_10_2 GL_OES_vertex_array_object GL_QCOM_alpha_test GL_QCOM_binning_control GL_QCOM_driver_control GL_QCOM_perfmon_global_mode GL_QCOM_extended_get GL_QCOM_extended_get2 GL_QCOM_tiled_rendering GL_QCOM_writeonly_rendering GL_EXT_sRGB GL_EXT_sRGB_write_control GL_EXT_texture_sRGB_decode GL_EXT_multisampled_render_to_texture GL_EXT_color_buffer_float GL_EXT_color_buffer_half_float GL_EXT_disjoint_timer_query
Region undefinedRegion (this=0xb8859fe4, count=1)
[ 0, 1024, 768, 1280]
orientation=0, isDisplayOn=1
last eglSwapBuffers() time: 1251.335000 us
last transaction time : 305.204000 us
transaction-flags : 00000000
refresh-rate : 59.999999 fps
x-dpi : 319.790009
y-dpi : 318.744995
gpu_to_cpu_unsupported : 0
eglSwapBuffers time: 0.000000 us
transaction time: 0.000000 us
VSYNC state: disabled
soft-vsync: disabled
numListeners=14,
events-delivered: 26757
0xb88642c0: count=-1
0xb88680e8: count=-1
0xb88684d0: count=-1
0xb886c8f8: count=-1
0xb886c9b8: count=-1
0xb886cf10: count=-1
0xb8874450: count=-1
0xb88ac618: count=-1
0xb88c1658: count=-1
0xb88fda88: count=-1
0xb89005d0: count=-1
0xb8912398: count=-1
0xb89125d8: count=-1
0xb8913e50: count=-1
h/w composer state:
h/w composer present and enabled
Hardware Composer state (version 01020000):
mDebugForceFakeVSync=0
Display[0] configurations (* current):
* 0: 768x1280, xdpi=319.790009, ydpi=318.744995, refresh=16666667
numHwLayers=3, flags=00000000
type | handle | hint | flag | tr | blnd | format | source crop (l,t,r,b) | frame | name
-----------+----------+------+------+----+------+-------------+--------------------------------+------------------------+------
HWC | b8878638 | 0002 | 0000 | 04 | 0100 | ? 00000011 | 0, 0, 640, 480 | 0, 0, 768, 1024 | SurfaceView
HWC | b88a6110 | 0002 | 0000 | 00 | 0105 | RGBA_8888 | 0, 0, 768, 1280 | 0, 0, 768, 1280 | co.pumpup.app/co.pumpup.app.Activities.CameraEditorActivity
FB TARGET | b8911608 | 0000 | 0000 | 00 | 0105 | RGBA_8888 | 0, 0, 768, 1280 | 0, 0, 768, 1280 | HWC_FRAMEBUFFER_TARGET
Qualcomm HWC state:
MDPVersion=440
DisplayPanel=8
HWC Map for Dpy: "PRIMARY"
PREV_FRAME: layerCount: 2 mdpCount: 2 cacheCount: 0
CURR_FRAME: layerCount: 2 mdpCount: 2 fbCount: 0
needsFBRedraw: NO pipesUsed: 2 MaxPipesPerMixer: 4
---------------------------------------------
listIdx | cached? | mdpIndex | comptype | Z
---------------------------------------------
0 | NO | 0 | MDP | 0
1 | NO | 1 | MDP | 1
Overlay State
==========================
Ctrl(mdp_overlay) id=1 z=1 fg=0 alpha=255 mask=-1 flags=0x60000
src(msmfb_img) w=768 h=1280 format=12 MDP_RGBA_8888
src_rect(mdp_rect) x=0 y=0 w=768 h=1280
dst_rect(mdp_rect) x=0 y=0 w=768 h=1280
Data(msmfb_overlay_data) id=1
data(msmfb_data) offset=0 memid=90 id=0 flags=0x0 priv=0
Attached to dpy=0
Ctrl(mdp_overlay) id=3 z=0 fg=0 alpha=255 mask=-1 flags=0x940000
src(msmfb_img) w=480 h=640 format=6 MDP_Y_CRCB_H2V2
src_rect(mdp_rect) x=0 y=0 w=480 h=640
dst_rect(mdp_rect) x=0 y=0 w=768 h=1024
Data(msmfb_overlay_data) id=3
data(msmfb_data) offset=462848 memid=123 id=0 flags=0x0 priv=0
Attached to dpy=0
Pipes used=2
MdpRotCtrl(msm_rotator_img_info) sessid=3966423424 rot=4, enable=1 downscale=0
src w=640 h=480 format=6 MDP_Y_CRCB_H2V2
dst w=480 h=640 format=6 MDP_Y_CRCB_H2V2
src_rect x=0 y=0 w=640 h=480
MdpRotData(msm_rotator_data_info) sessid=3966423424 verkey=0
src offset=0 memid=98 id=0 flags=0x0 priv=0
dst offset=462848 memid=123 id=0 flags=0x0 priv=0
src_chroma offset=0 memid=0 id=0 flags=0x0 priv=0
dst_chroma offset=0 memid=0 id=0 flags=0x0 priv=0
================
Allocated buffers:
0xb8862b88: 288.00 KiB | 768 ( 768) x 96 | 1 | 0x00000900
0xb88642e8: 3840.00 KiB | 768 ( 768) x 1280 | 1 | 0x00001a00
0xb8868488: 3840.00 KiB | 768 (1024) x 1280 | 3 | 0x00000900
0xb886c8a0: unknown | 640 ( 640) x 480 | 11 | 0x50020900
0xb8873348: 150.00 KiB | 768 ( 768) x 50 | 1 | 0x00000900
0xb88773c8: 150.00 KiB | 768 ( 768) x 50 | 1 | 0x00000900
0xb8878160: unknown | 640 ( 640) x 480 | 11 | 0x50020900
0xb88785f0: unknown | 640 ( 640) x 480 | 11 | 0x50020900
0xb8878638: unknown | 640 ( 640) x 480 | 11 | 0x50020900
0xb8879b08: unknown | 640 ( 640) x 480 | 11 | 0x50020900
0xb88a6110: 3840.00 KiB | 768 ( 768) x 1280 | 1 | 0x00000900
0xb88c3308: unknown | 640 ( 640) x 480 | 11 | 0x50020900
0xb88c5138: 288.00 KiB | 768 ( 768) x 96 | 1 | 0x00000900
0xb88ed258: 3840.00 KiB | 768 ( 768) x 1280 | 1 | 0x00000900
0xb88fdc40: 3840.00 KiB | 768 (1024) x 1280 | 3 | 0x00000900
0xb88fdf68: 288.00 KiB | 768 ( 768) x 96 | 1 | 0x00000900
0xb88fedf0: 3840.00 KiB | 768 (1024) x 1280 | 3 | 0x00000900
0xb88ff3d0: 3840.00 KiB | 768 ( 768) x 1280 | 1 | 0x00000900
0xb89000e0: unknown | 640 ( 640) x 480 | 11 | 0x50020900
0xb89004b8: 150.00 KiB | 768 ( 768) x 50 | 1 | 0x00000900
0xb8911608: 3840.00 KiB | 768 ( 768) x 1280 | 1 | 0x00001a00
Total allocated (estimate): 32034.00 KB
//Camera logic
private void adjustAspectRatio()
{
List<Camera.Size> sizesOfPreviews = _camera.getParameters().getSupportedPreviewSizes();
Camera.Size size = getOptimalPreviewSize(sizesOfPreviews,Helper.screenWidthPX(_context),Helper.screenHeightPX(_context));
int cameraWidth = size.height;
int cameraHeight = size.width;
System.out.println("Optimal camera size is " + cameraWidth + " x " + cameraHeight);
_camera.getParameters().setPreviewSize(cameraWidth, cameraHeight);
_parentLayout.getLayoutParams().width = 768;
_parentLayout.getLayoutParams().height = 1024;
//_parentLayout.setAspectRatio((double)cameraWidth/cameraHeight);
}
private Camera.Size getOptimalPreviewSize(List<Camera.Size> sizes, int w, int h)
{
final double ASPECT_TOLERANCE = 0.1;
double targetRatio = (double) h / w;
if (sizes == null)
return null;
Camera.Size optimalSize = null;
double minDiff = Double.MAX_VALUE;
int targetHeight = h;
for (Camera.Size size : sizes) {
double ratio = (double) size.height / size.width;
if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE)
continue;
if (Math.abs(size.height - targetHeight) < minDiff) {
optimalSize = size;
minDiff = Math.abs(size.height - targetHeight);
}
}
if (optimalSize == null) {
minDiff = Double.MAX_VALUE;
for (Camera.Size size : sizes) {
if (Math.abs(size.height - targetHeight) < minDiff) {
optimalSize = size;
minDiff = Math.abs(size.height - targetHeight);
}
}
}
return optimalSize;
}