文件名称:
usb_parrot_r16_tinav2.0_20161024_1758.7z
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文件大小: 46kb
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上传时间: 2016-10-24
详细说明： usb_parrot_r16_tinav2.0_20161024_1758.7z UNICODE 全志R16平台TINAV2.0下的USB接口摄像头的配置 注意：由于没有配置CSI接口的摄像头（OV5640），所有USB接口的摄像头的设备节点为：/dev/video0。 1、在menuconfig中打开UVC rootroot@rootroot-E400:~/wyb/parrot_r16_tinav2.0$ source build/envsetup.sh including target/allwinner/ tulip-d1/vendorsetup.sh including target/allwinner/octopus-dev/vendorsetup.sh including target/allwinner/astar-parrot/vendorsetup.sh including target/allwinner/generic/vendorsetup.sh including target/allwinner/astar-spk/vendorsetup.sh including target/allwinner/astar-evb/vendorsetup.sh rootroot@rootroot-E400:~/wyb/parrot_r16_tinav2.0$ lunch You're building on Linux Lunch menu... pick a combo: 1. tulip_d1-tina 2. tulip_d1-dragonboard 3. octopus_dev-tina 4. octopus_dev-dragonboard 5. astar_parrot-tina 6. astar_parrot-dragonboard 7. astar_spk-tina 8. astar_spk-dragonboard 9. astar_evb-tina Which would you like?5 ============================================ PLATFORM_VERSION_CODENAME=Neptune PLATFORM_VERSION=2.0.0 TARGET_PRODUCT=astar_parrot TARGET_BUILD_VARIANT=tina TARGET_BUILD_TYPE=release TARGET_BUILD_APPS= TARGET_ARCH=arm TARGET_ARCH_VARIANT=armv7-a-neon TARGET_CPU_VARIANT=cortex-a7 TARGET_2ND_ARCH= TARGET_2ND_ARCH_VARIANT= TARGET_2ND_CPU_VARIANT= HOST_ARCH=x86_64 HOST_OS=linux HOST_OS_EXTRA=Linux-3.13.0-24-generic-x86_64-with-Ubuntu-14.04-trusty HOST_BUILD_TYPE=release BUILD_ID=57513AA3 OUT_DIR= ============================================ rootroot@rootroot-E400:~/wyb/parrot_r16_tinav2.0$ rootroot@rootroot-E400:~/wyb/parrot_r16_tinav2.0$ rootroot@rootroot-E400:~/wyb/parrot_r16_tinav2.0$ make kernel_menuconfig Device Drivers ---> <*> Multimedia support ---> [*] Video capture adapters ---> （选中） [ ] V4L USB devices ---> --- V4L USB devices （选中） <*> USB Video Class (UVC) [*] UVC input events device support 2、全志原声提供的cameratest有点错误。 Z:\home\wwt\parrot_r16_tinav2.0\package\allwinner\cameratest\src\common\hawkview.c int fetch_sub_cmd(const char* buf,int buf_len,char** cmd,int* cmd_num,int lenght) { int i = 0,j = 0,n = 0; while(buf[i] != '#'){ //the sub cmd end by '#' while(buf[i] != 'x' && buf[i] != ':' && buf[i] != '#') { if(i++ > buf_len) return 0; *((char*)cmd + n*lenght + j++) = buf[i]; if(j > lenght) { hv_err("sub cmd over long\n"); *cmd_num = n + 1; return -1; } } *((char*)cmd + n*lenght + j++) = '\0'; n++; j = 0; if(buf[i] != '#'){ i++; } if(n > *cmd_num){ hv_err("the max cmd num is %d\n",*cmd_num); return -1; } } *cmd_num = n; return 0; } 修改为： int fetch_sub_cmd(const char* buf,int buf_len,char** cmd,int* cmd_num,int lenght) { int i = 0,j = 0,n = 0; while(buf[i] != '#'){ //the sub cmd end by '#' while(buf[i] != 'x' && buf[i] != ':' && buf[i] != '#') { if((i+1) > buf_len) return 0; *((char*)cmd + n*lenght + j++) = buf[i++]; if(j > lenght) { hv_err("sub cmd over long\n"); *cmd_num = n + 1; return -1; } } *((char*)cmd + n*lenght + j++) = '\0'; n++; j = 0; if(buf[i] != '#'){ i++; } if(n > *cmd_num){ hv_err("the max cmd num is %d\n",*cmd_num); return -1; } } *cmd_num = n; return 0; } 3、根据USB摄像头的格式进行相应的修改： 修改cameratest/src/common/hawkview.c中的init_defualt_parameters（）函数中 hv->capture.cap_fmt = V4L2_PIX_FMT_NV12; 将V4L2_PIX_FMT_NV12修改成你们使用的usb camera所支持的采集格式。 比如支持MJPEG格式，改成为 hv->capture.cap_fmt = V4L2_PIX_FMT_MJPEG; 如果是YUYV格式 hv->capture.cap_fmt = V4L2_PIX_FMT_YUYV; 如果是H264格式 hv->capture.cap_fmt = V4L2_PIX_FMT_H264; 一般usb camera就只有这些格式。 static int init_defualt_parameters(hawkview_handle* hv) { hv->capture.set_w = 1280; hv->capture.set_h = 720; hv->capture.video_no = 1; hv->capture.subdev_id = 0; hv->capture.cap_fps = 30; // hv->capture.cap_fmt = V4L2_PIX_FMT_NV12; hv->capture.cap_fmt = V4L2_PIX_FMT_YUYV; hv->capture.sub_w = 640; hv->capture.sub_h = 480; hv->display.input_w = 640; hv->display.input_h = 480; return 0; } Z:\home\wwt\parrot_r16_tinav2.0\package\allwinner\cameratest\src\common\video_helper.c int save_frame_to_file(void* str,void* start,int w,int h,int format,int is_one_frame) { FILE* fp; int length; // length = w*h*3>>1; length = w*h*2; if(is_one_frame) fp = fopen(str,"wrb+"); //save one frame data else fp = fopen(str,"warb+"); //save more frames //TODO: test if(!fp) { hv_err("Open file error\n"); return -1; } if(fwrite(start,length,1,fp)){ fclose(fp); return 0; } else { hv_err("Write file fail\n"); fclose(fp); return -1; } } 4、通过adb工具生成YUUV格式的YUV图片： Microsoft Windows [版本 6.1.7601] 版权所有 (c) 2009 Microsoft Corporation。保留所有权利。 C:\Users\Administrator>adb shell BusyBox v1.24.1 () built-in shell (ash) _____ _ __ _ |_ _||_| ___ _ _ | | |_| ___ _ _ _ _ | | _ | || | | |__ | || || | ||_'_| | | | || | || _ | |_____||_||_|_||___||_,_| |_| |_||_|_||_|_| Tina is Based on OpenWrt! ---------------------------------------------- Tina Linux (Neptune, 57513AA3) ---------------------------------------------- root@TinaLinux:/# cd tmp cd tmp root@TinaLinux:/tmp# root@TinaLinux:/tmp# echo "146:0:1:640x480#" > command echo "146:0:1:640x480#" > command root@TinaLinux:/tmp# root@TinaLinux:/tmp# echo "149:test1013.yuv#" > command echo "149:test1013.yuv#" > command root@TinaLinux:/tmp# root@TinaLinux:/tmp# 5、通过adb工具将生成YUUV格式的YUV图片拿到电脑上： Microsoft Windows [版本 6.1.7601] 版权所有 (c) 2009 Microsoft Corporation。保留所有权利。 C:\Users\Administrator>adb pull /tmp/yuvtest1013.yuv c:\ 6315 KB/s (614400 bytes in 0.095s) C:\Users\Administrator> ...展开收缩
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