平台
RK3566 + Android 11
概述
UVC:
USB video class(又称为USB video device class or UVC)就是USB device class视频产品在不需要安装任何的驱动程序下即插即用,包括摄像头、数字摄影机、模拟视频转换器、电视卡及静态视频相机。
测试代码:
Camera cam = Camera.open(CAMERA_ID);
Camera.Parameters param = cam.getParameters();
List<Camera.Size> sizes = param.getSupportedPreviewSizes();
打印出来后显示支持的预览分辨率如下:
D startPreview support preview 640x360
D startPreview support preview 640x480
D startPreview support preview 960x540
D startPreview support preview 800x600
D startPreview support preview 1280x720
D startPreview support preview 1280x960
D startPreview support preview 1920x1080
D startPreview support preview 1600x1200
然而,把摄像头接入到PC上,不管是LINUX还是WINDOWS,会发现实际支持的最大预览分辨率是:3840x2160
缺少的分辨率哪去了?
分析
摄像头部分的架构比较复杂,整理几个相关的源码目录:
# SDK 接口
> frameworks/base/core/java/android/hardware/Camera.java
> frameworks/base/core/jni/android_hardware_Camera.cpp
# 上层 Camera 服务
> frameworks/av/camera/
# HAL层
> hardware/rockchip/camera
> hardware/interfaces/camera/
# 配置文件,对应USB和CSI之类的摄像头配置
# 包含了支持分辨率,闪光灯等等的一些特性。
> device/rockchip/common/external_camera_config.xml
> hardware/rockchip/camera/etc/camera/
烧录到主板后相关的一些文件目录
> rk3568_r:/ # ll /vendor/etc/camera/
total 948
-rw-r--r-- 1 root root 3044 2023-04-18 09:55 README.txt
-rw-r--r-- 1 root root 152818 2023-04-18 09:55 camera3_profiles.xml
-rw-r--r-- 1 root root 166244 2023-04-18 09:55 camera3_profiles_default.xml
-rw-r--r-- 1 root root 14744 2023-04-18 09:55 camera3_profiles_rk1126.xml
-rw-r--r-- 1 root root 48811 2023-04-18 09:55 camera3_profiles_rk3126c.xml
-rw-r--r-- 1 root root 64987 2023-04-18 09:55 camera3_profiles_rk3288.xml
-rw-r--r-- 1 root root 61800 2023-04-18 09:55 camera3_profiles_rk3326.xml
-rw-r--r-- 1 root root 98549 2023-04-18 09:55 camera3_profiles_rk3368.xml
-rw-r--r-- 1 root root 64766 2023-04-18 09:55 camera3_profiles_rk3399.xml
-rw-r--r-- 1 root root 26451 2023-04-18 09:55 camera3_profiles_rk3399_1608.xml
-rw-r--r-- 1 root root 77820 2023-04-18 09:55 camera3_profiles_rk3399pro.xml
-rw-r--r-- 1 root root 152818 2023-04-18 09:55 camera3_profiles_rk356x.xml
-rw-r--r-- 1 root root 2875 2023-04-18 09:55 graph_descriptor.xml
-rw-r--r-- 1 root root 145 2023-04-18 09:55 reset_camera.sh
drwxr-xr-x 2 root shell 4096 2023-04-18 09:55 rkisp1
drwxr-xr-x 2 root shell 4096 2023-04-18 09:55 rkisp2
# UVC 的配置
> /vendor/etc/external_camera_config.xml
先用v4l2 工具看下基本信息
## 当前的设备列表
rk3566:/ # ll /dev/video*
crw-rw---- 1 media camera 81, 0 2023-04-14 09:44 /dev/video0
crw-rw---- 1 media camera 81, 1 2023-04-14 09:44 /dev/video1
crw-rw---- 1 media camera 81, 10 2023-04-14 09:44 /dev/video10
crw-rw---- 1 media camera 81, 11 2023-04-14 09:44 /dev/video11
crw-rw---- 1 media camera 81, 12 2023-04-14 09:44 /dev/video12
crw-rw---- 1 media camera 81, 13 2023-04-14 09:44 /dev/video13
crw-rw---- 1 media camera 81, 14 2023-04-14 09:44 /dev/video14
crw-rw---- 1 media camera 81, 15 2023-04-14 09:44 /dev/video15
crw-rw---- 1 media camera 81, 2 2023-04-14 09:44 /dev/video2
crw-rw---- 1 media camera 81, 3 2023-04-14 09:44 /dev/video3
crw-rw---- 1 media camera 81, 4 2023-04-14 09:44 /dev/video4
crw-rw---- 1 media camera 81, 5 2023-04-14 09:44 /dev/video5
crw-rw---- 1 media camera 81, 6 2023-04-14 09:44 /dev/video6
crw-rw---- 1 media camera 81, 7 2023-04-14 09:44 /dev/video7
crw-rw---- 1 media camera 81, 8 2023-04-14 09:44 /dev/video8
crw-rw---- 1 media camera 81, 9 2023-04-14 09:44 /dev/video9
# 设备信息
rk3566_r:/ # v4l2-ctl --list-devices
rkisp-statistics (platform: rkisp):
/dev/video12
/dev/video13
rkcif (platform:rkcif_mipi_lvds):
/dev/video0
/dev/video1
/dev/video2
/dev/video3
/dev/video4
rkisp_mainpath (platform:rkisp-vir0):
/dev/video5
/dev/video6
/dev/video7
/dev/video8
/dev/video9
/dev/video10
/dev/video11
UC40A Audio: UC40A Video (usb-xhci-hcd.1.auto-1.3):
/dev/video14
/dev/video15
# 查看指定设备信息
rk3566_r:/ # v4l2-ctl -D -d /dev/video15
Driver Info:
Driver name : uvcvideo
Card type : UC40A Audio: UC40A Video
Bus info : usb-xhci-hcd.1.auto-1.3
Driver version : 4.19.193
Capabilities : 0x84a00001
Video Capture
Metadata Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04a00000
Metadata Capture
Streaming
Extended Pix Format
Media Driver Info:
Driver name : uvcvideo
Model : UC40A Audio: UC40A Video
Serial : 01.00.00
Bus info : usb-xhci-hcd.1.auto-1.3
Media version : 4.19.193
Hardware revision: 0x00000902 (2306)
Driver version : 4.19.193
Interface Info:
ID : 0x03000005
Type : V4L Video
Entity Info:
ID : 0x00000004 (4)
Name : UC40A Audio: UC40A Video
Function : V4L2 I/O
# 设备支持格式
rk3566_r:/ # v4l2-ctl -d /dev/video14 --list-formats
ioctl: VIDIOC_ENUM_FMT
Index : 0
Type : Video Capture
Pixel Format: 'MJPG' (compressed)
Name : Motion-JPEG
Index : 1
Type : Video Capture
Pixel Format: 'YUYV'
Name : YUYV 4:2:2
# 设备支持分辨率
rk3566_r:/ # v4l2-ctl -d /dev/video14 --list-framesizes=YUYV
ioctl: VIDIOC_ENUM_FRAMESIZES
Size: Discrete 2048x1536
Size: Discrete 640x480
Size: Discrete 3840x2160
Size: Discrete 2592x1944
Size: Discrete 2688x1512
Size: Discrete 1920x1080
Size: Discrete 1600x1200
Size: Discrete 1280x960
Size: Discrete 1280x720
Size: Discrete 960x540
Size: Discrete 800x600
Size: Discrete 640x360
结论:硬件及驱动到HAL都是正常
忽略中间漫长的排查过程, 直奔主题:
预览的限制主要存在于HAL和framework层, 至少RK的SDK是这样的,其他平台请勿对号入座。
- HAL
/vendor/etc/external_camera_config.xml 中的 FpsList
注释:List of maximum fps for various output sizes
解决的方法是增加对应缺少的分辨率,如:<Limit width=“3840” height=“2160” fpsBound=“30.0” />
<ExternalCamera>
<Provider>
<ignore> <!-- Internal video devices to be ignored by external camera HAL -->
<!-- <id>0</id> --> <!-- No leading/trailing spaces -->
</ignore>
</Provider>
<!-- See ExternalCameraUtils.cpp for default values of Device configurations below-->
<Device>
<!-- Max JPEG buffer size in bytes-->
<MaxJpegBufferSize bytes="24883200"/> <!-- 3MB (~= 1080p YUV420) -->
<!-- Size of v4l2 buffer queue when streaming >= 30fps -->
<!-- Larger value: more request can be cached pipeline (less janky) -->
<!-- Smaller value: use less memory -->
<NumVideoBuffers count="4"/>
<!-- Size of v4l2 buffer queue when streaming < 30fps -->
<NumStillBuffers count="2"/>
<!-- List of maximum fps for various output sizes -->
<!-- Any image size smaller than the size listed in Limit row will report
fps (as minimum frame duration) up to the fpsBound value. -->
<FpsList>
<!-- width/height must be increasing, fpsBound must be decreasing-->
<Limit width="176" height="144" fpsBound="60.0" />
<Limit width="176" height="144" fpsBound="30.0" />
<Limit width="176" height="144" fpsBound="20.0" />
<Limit width="176" height="144" fpsBound="15.0" />
<Limit width="320" height="240" fpsBound="60.0" />
<Limit width="320" height="240" fpsBound="30.0" />
<Limit width="320" height="240" fpsBound="20.0" />
<Limit width="320" height="240" fpsBound="15.0" />
<Limit width="352" height="288" fpsBound="30.0" />
<Limit width="352" height="288" fpsBound="20.0" />
<Limit width="352" height="288" fpsBound="15.0" />
<Limit width="640" height="480" fpsBound="60.0" />
<Limit width="640" height="480" fpsBound="30.0" />
<Limit width="640" height="480" fpsBound="20.0" />
<Limit width="640" height="480" fpsBound="15.0" />
<Limit width="640" height="480" fpsBound="10.0" />
<Limit width="800" height="600" fpsBound="30.0" />
<Limit width="800" height="600" fpsBound="20.0" />
<Limit width="800" height="600" fpsBound="15.0" />
<Limit width="1024" height="768" fpsBound="30.0" />
<Limit width="1024" height="768" fpsBound="20.0" />
<Limit width="1024" height="768" fpsBound="15.0" />
<Limit width="1024" height="768" fpsBound="10.0" />
<Limit width="1280" height="720" fpsBound="60.0" />
<Limit width="1280" height="720" fpsBound="30.0" />
<Limit width="1280" height="720" fpsBound="20.0" />
<Limit width="1280" height="720" fpsBound="15.0" />
<Limit width="1280" height="720" fpsBound="10.0" />
<Limit width="1280" height="800" fpsBound="30.0" />
<Limit width="1280" height="800" fpsBound="20.0" />
<Limit width="1280" height="800" fpsBound="15.0" />
<Limit width="1280" height="960" fpsBound="30.0" />
<Limit width="1280" height="960" fpsBound="20.0" />
<Limit width="1280" height="960" fpsBound="15.0" />
<Limit width="1280" height="1024" fpsBound="30.0" />
<Limit width="1280" height="1024" fpsBound="20.0" />
<Limit width="1280" height="1024" fpsBound="15.0" />
<Limit width="1600" height="1200" fpsBound="30.0" />
<Limit width="1600" height="1200" fpsBound="15.0" />
<Limit width="1920" height="1080" fpsBound="30.0" />
<Limit width="1920" height="1080" fpsBound="15.0" />
<Limit width="2048" height="1536" fpsBound="30.0" />
<Limit width="2592" height="1944" fpsBound="30.0" />
<Limit width="2592" height="1944" fpsBound="15.0" />
<Limit width="2592" height="1944" fpsBound="10.0" />
<Limit width="2592" height="1944" fpsBound="5.0" />
<Limit width="2688" height="1512" fpsBound="30.0" />
<Limit width="3840" height="2160" fpsBound="30.0" />
<!-- image size larger than the last entry will not be supported-->
</FpsList>
<!-- orientation -->
<Orientation degree="90"/>
</Device>
</ExternalCamera>
hardware/interfaces/camera/device/3.4/default/RgaCropScale.cpp
diff --git a/hardware/interfaces/camera/device/3.4/default/RgaCropScale.cpp b/hardware/interfaces/camera/device/3.4/default/RgaCropScale.cpp
index 23d018fb6d..4829d1d664 100644
--- a/hardware/interfaces/camera/device/3.4/default/RgaCropScale.cpp
+++ b/hardware/interfaces/camera/device/3.4/default/RgaCropScale.cpp
@@ -21,21 +21,21 @@
namespace android {
namespace camera2 {
-#if (defined(TARGET_RK32) || defined(TARGET_RK3368))
+//#if (defined(TARGET_RK32) || defined(TARGET_RK3368))
#define RGA_VER (2.0)
#define RGA_ACTIVE_W (4096)
#define RGA_VIRTUAL_W (4096)
#define RGA_ACTIVE_H (4096)
#define RGA_VIRTUAL_H (4096)
-#else
-#define RGA_VER (1.0)
-#define RGA_ACTIVE_W (2048)
-#define RGA_VIRTUAL_W (4096)
-#define RGA_ACTIVE_H (2048)
-#define RGA_VIRTUAL_H (2048)
+//#else
+//#define RGA_VER (1.0)
+//#define RGA_ACTIVE_W (2048)
+//#define RGA_VIRTUAL_W (4096)
+//#define RGA_ACTIVE_H (2048)
+//#define RGA_VIRTUAL_H (2048)
-#endif
+//#endif
这部分不修改会导致以下问题:
and...ternal-service E (dst_width > RGA_VIRTUAL_W) || (dst_height > RGA_VIRTUAL_H), switch to arm
and...ternal-service I uid=1047(cameraserver) ExtCamOut identical 2 lines
and...ternal-service E (dst_width > RGA_VIRTUAL_W) || (dst_height > RGA_VIRTUAL_H), switch to arm
com...d.quickpreview I Background concurrent copying GC freed 306(35KB) AllocSpace objects, 3(35MB) LOS objects, 48% free, 25MB/49MB, paused 862us total 143.804ms
and...ternal-service E (dst_width > RGA_VIRTUAL_W) || (dst_height > RGA_VIRTUAL_H), switch to arm
and...ternal-service E (dst_width > RGA_VIRTUAL_W) || (dst_height > RGA_VIRTUAL_H), switch to arm
and...er@2.1-service I [File] : hardware/rockchip/libgralloc/bifrost/src/core/mali_gralloc_formats.cpp; [Line] : 1858; [Func] : rk_gralloc_select_format;
AFBC IS disabled for fb_target_layer.
and...ternal-service E (dst_width > RGA_VIRTUAL_W) || (dst_height > RGA_VIRTUAL_H), switch to arm
and...ternal-service I uid=1047(cameraserver) ExtCamOut identical 2 lines
and...ternal-service E (dst_width > RGA_VIRTUAL_W) || (dst_height > RGA_VIRTUAL_H), switch to arm
and...ternal-service D @debugShowFPS(1171): Camera 2176 Frames, 30.105 FPS
and...ternal-service E (dst_width > RGA_VIRTUAL_W) || (dst_height > RGA_VIRTUAL_H), switch to arm
and...ternal-service I uid=1047(cameraserver) ExtCamOut identical 2 lines
and...ternal-service E (dst_width > RGA_VIRTUAL_W) || (dst_height > RGA_VIRTUAL_H), switch to arm
and...er@2.1-service I [File] : hardware/rockchip/libgralloc/bifrost/src/core/mali_gralloc_formats.cpp; [Line] : 1858; [Func] : rk_gralloc_select_format;
AFBC IS disabled for fb_target_layer.
and...ternal-service E (dst_width > RGA_VIRTUAL_W) || (dst_height > RGA_VIRTUAL_H), switch to arm
and...ternal-service I uid=1047(cameraserver) ExtCamOut identical 4 lines
and...ternal-service E (dst_width > RGA_VIRTUAL_W) || (dst_height > RGA_VIRTUAL_H), switch to arm
and...er@2.1-service I [File] : hardware/rockchip/libgralloc/bifrost/src/core/mali_gralloc_formats.cpp; [Line] : 1858; [Func] : rk_gralloc_select_format;
AFBC IS disabled for fb_target_layer.
- Framework
frameworks/av/services/camera/libcameraservice/api1/client2/Parameters.h
上层接口解除1080P的限制.
diff --git a/frameworks/av/services/camera/libcameraservice/api1/client2/Parameters.h b/frameworks/av/services/camera/libcameraservice/api1/client2/Parameters.h
index 3a709c9791..2ee332a8c8 100644
--- a/frameworks/av/services/camera/libcameraservice/api1/client2/Parameters.h
+++ b/frameworks/av/services/camera/libcameraservice/api1/client2/Parameters.h
@@ -199,11 +199,11 @@ struct Parameters {
// Max preview size allowed
// This is set to a 1:1 value to allow for any aspect ratio that has
// a max long side of 1920 pixels
- static const unsigned int MAX_PREVIEW_WIDTH = 1920;
- static const unsigned int MAX_PREVIEW_HEIGHT = 1920;
+ static const unsigned int MAX_PREVIEW_WIDTH = 3840;
+ static const unsigned int MAX_PREVIEW_HEIGHT = 2160;
// Initial max preview/recording size bound
- static const int MAX_INITIAL_PREVIEW_WIDTH = 1920;
- static const int MAX_INITIAL_PREVIEW_HEIGHT = 1080;
+ static const int MAX_INITIAL_PREVIEW_WIDTH = 3840;
+ static const int MAX_INITIAL_PREVIEW_HEIGHT = 2160;
// Aspect ratio tolerance
static const CONSTEXPR float ASPECT_RATIO_TOLERANCE = 0.001;
// Threshold for slow jpeg mode
编译验证
# 编译
mmm hardware/interfaces/camera/device/3.4/default/
# push 到主板
#adb push out/target/product/rk3566_r/vendor/lib64/hw/camera.rk30board.so /vendor/lib64/hw/
#adb push out/target/product/rk3566_r/vendor/lib/hw/camera.rk30board.so /vendor/lib/hw/
adb push out/target/product/rk3566_r/vendor/lib/camera.device@3.4-external-impl.so /vendor/lib/
adb push out/target/product/rk3566_r/vendor/lib64/camera.device@3.4-external-impl.so /vendor/lib64/
# 编译
mmm /disk4/anson/rk3568_a11/frameworks/av/services/camera/libcameraservice/:libcameraservice
adb push out/target/product/rk3566_r/system/lib/libcameraservice.so /system/lib/
adb push out/target/product/rk3566_r/system/lib64/libcameraservice.so /system/lib64/
小插曲
RK的Linux 烧录工具文章来源:https://www.toymoban.com/news/detail-420923.html
# 低版本可以烧录 system.img
# -s system.img
# 新版本的SDK中,烧录super.img
Linux_Upgrade_Tool_v1.65/upgrade_tool DI -super super.img
# 烧录完整固件
Linux_Upgrade_Tool_v1.65/upgrade_tool UF update.img
参考
Ubuntu下查看usb摄像头不同压缩格式支持的分辨率文章来源地址https://www.toymoban.com/news/detail-420923.html
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