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[color=rgba(0, 0, 0, 0.87)]介绍sunxi 平台RTOS 上CSI_JPEG 驱动hal 的一般使用方法及调试接口，为开发与调试提供参考。 模块介绍SENSOR -> CSI 通路[color=rgba(0, 0, 0, 0.87)]CSI （CMOS sensor interface）接口时序上可支持独立 SYNC 和嵌入 SYNC(CCIR656)。支持接收 YUV422 或 YUV420 数据。 [color=rgba(0, 0, 0, 0.87)] [color=var(--md-typeset-a-color)] [color=rgba(0, 0, 0, 0.87)]VSYNC 和HSYNC 的有效电平可以是正极性，也可以是负极性。在配置时，需要保证摄像头和 CSI 内部配置保持一致。 [color=rgba(0, 0, 0, 0.87)]最常见的 YUV422 格式输入后，内部只能处理成 YUV420 格式，并输出到 memory 存以 NV12布局形式。 [color=rgba(0, 0, 0, 0.87)] [color=var(--md-typeset-a-color)] [color=rgba(0, 0, 0, 0.87)]JPEG 模块只支持 YUV420 格式的编码，因此 CSI 捕获的数据输出给 JPEG 模块编码的图像格式必须是 YUV420。若 CSI 输入 JPEG 模块是 JPEG 码流，JPEG 模块也能正常将其输出。 编码模式[color=rgba(0, 0, 0, 0.87)]JPEG 模块支持 online 及 offline 模式编码。 - online 模式即在线模式，CSI 每接收到 16 行数据就自动进行 JPEG 编码，当前帧图像接收完，编码也随即完成。该模式 CSI 不会将接收的原始图像数据保存起来，只输出 JPEG 编码后的数据。编码数据输出的方式又有：整帧模式和分块模式。
- offline 模式即离线模式，CSI 接收到的数据会先存到内存中，待一帧完整数据全部存储完成后，由软件启动 JPEG 编码。所以此时 JPEG 不是实时处理，可以对任何已经保存好的 YUV420 图像数据进行编码。
ONLINE 模式[color=rgba(0, 0, 0, 0.87)]Online 模式的通路框图如下图所示： [color=rgba(0, 0, 0, 0.87)] [color=var(--md-typeset-a-color)] [color=rgba(0, 0, 0, 0.87)]Sensor(摄像头) 输出 YUV422 格式数据到 CSI，CSI 接收到 YUV422 后处理成 YUV420 格式，每接收到 16 行数据后，硬件会自动启动 JPEG encoder 进行一次编码操作，编码输出的码流通过总线直接写到设定好的内存中，故可认为 Online 模式下图像的接收和编码是同时进行的。在一帧数据接收完并编码结束后，JPEG encoder 会产生 ve finish(编码完成) 中断。因此，对图像分辨率的要求是行列数为 16 的整数倍，支持的最小分辨率为 32*32。 [color=rgba(0, 0, 0, 0.87)]Online 分块模式与整帧模式的区别在于，分块模式可以在 JPEG 编码输出数据量达到设定值 (例如 2KB/4KB) 后产生中断，并且可以在一帧编码过程中循环使用编码输出空间，例如只分配 8KB的编码输出空间，而一帧图像编码数据有 20KB，则在第一次写满 8KB 后，JPEG 将会从这 8KB的首地址开始存储，循环使用，故需要软件配合将之前的数据读走，否则之前的数据会被覆盖。 OFFLINE 模式[color=rgba(0, 0, 0, 0.87)]Offline 模式的通路框图如下图所示： [color=rgba(0, 0, 0, 0.87)] [color=var(--md-typeset-a-color)] [color=rgba(0, 0, 0, 0.87)]Offline 模式下，CSI 会将 YUV420 的原始图像数据存储到 YUV memory 中，存放格式为NV12。一帧图像全部存完后，产生写回中断 (wb finish)，然后由软件启动 JPEG 开始编码， JPEG 编码器会读取 YUV memory 中的原始数据送给 Encoder 进行编码，编码后的数据写到JPEG memory 中。 模块配置[color=rgba(0, 0, 0, 0.87)]其menuconfig 的配置如下（以选择GC0308 摄像头为例）： code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">Drivers Options ---> soc related device drivers ---> CSI Devices ---> [* enable csi driver [* enable csi camera driver [* csi camera choice ---> --- csi camera choice [* csi camera GC0308 [* enable jpeg encoder [* enable csi demo test command // csi_jpeg模块测试用例源码结构[color=rgba(0, 0, 0, 0.87)]驱动位于 rtos-hal/hal/source/drivers/hal/source/csi code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">csi/├── csi_camera/ ;csi driver│ ├── csi.c│ ├── csi.h│ ├── csi_reg/│ │ ├── csi_reg.c│ │ └── csi_reg.h│ └── sensor/ ;cmos sensor driver│ ├── drv_gc0308.c│ ├── sensor_helper.c│ └── sensor_helper.h├── hal_csi_jpeg.c ;csi_jpeg模块驱动实现主体├── jpeg/ ;jpeg driver│ ├── hal_jpeg.c│ ├── hal_jpeg.h│ ├── jpegenc.c│ ├── jpegenc.h│ ├── jpeglib.c│ ├── jpeglib.h│ ├── jpeg_marker.h│ └── jpeg_reg/│ ├── jpeg_reg.c│ └── jpeg_reg.h└── utility ├── cj_board_cfg.h ├── cj_platform_cfg.h └── sensor/ ├── camera_sensor.h └── drv_gc0308.h模块接口说明数据结构csi_jpeg_fmt[color=rgba(0, 0, 0, 0.87)]作用：用于描述csi_jpeg 模块的属性参数 [color=rgba(0, 0, 0, 0.87)]成员： - line_mode：JPEG 的工作模式。
- output_mode：CSI_JPEG 的输出图像格式。
- cb：CSI/JPEG 的硬件中断的回调函数。可以用做实现JPEG 分块模式的数据提取功能。
code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">struct csi_jpeg_fmt { unsigned int width; unsigned int height; enum line_mode_t line_mode; enum pix_output_fmt_mode_t output_mode; CapStatusCb cb; unsigned char fps; //reserve}；// 成员line_mode结构体enum line_mode_t { OFFLINE_MODE = 0, ONLINE_MODE,};// 成员output_mode结构体enum pix_output_fmt_mode_t { PIX_FMT_OUT_NV12 = 0x1, PIX_FMT_OUT_JPEG = 0x2, PIX_FMT_OUT_MAX = 0x3,};csi_ipeg_mem[color=rgba(0, 0, 0, 0.87)]作用：用于描述 CSI/JPEG 模块所申请 buffer 相关的属性信息 [color=rgba(0, 0, 0, 0.87)]成员： - buf : 所申请的 buffer。
- mpart_info : JPEG 分块模式的块属性信息。
code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">struct csi_ipeg_mem { unsigned char index; struct csi_ipeg_buf buf; jpeg_mpartbuffinfo mpart_info; struct list_head list;};// 成员buf结构体struct csi_ipeg_buf { unsigned int size; void *addr;};// 成员mpart_info结构体typedef struct { uint8_t buff_index; /* Indicate which buffer the currently encoded part jpeg is stored in */ uint32_t buff_offset; /* Indicate the offset of the current part of jpeg in the buffer */ uint8_t tail; /* Indicates whether it is the last part of a jpeg image */ uint32_t size; /* Indicate the size of the current part of jpeg encoding */} jpeg_mpartbuffinfo;模块加载初始化[color=rgba(0, 0, 0, 0.87)]csi_jpeg 模块的加载函数，主要是CSI/JPEG 模块的初始化、申请中断和clk 初始化等 [color=rgba(0, 0, 0, 0.87)]函数原型： code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">HAL_Status hal_csi_jpeg_probe(void)[color=rgba(0, 0, 0, 0.87)]参数： [color=rgba(0, 0, 0, 0.87)]返回值： 模块去初始化[color=rgba(0, 0, 0, 0.87)]csi_jpeg 模块的移除函数，主要是CSI/JPEG 模块的反初始化、注销中断和clk 反初始化等。 code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">HAL_Status hal_csi_jpeg_remove(void)[color=rgba(0, 0, 0, 0.87)]参数： [color=rgba(0, 0, 0, 0.87)]返回值： 配置参数[color=rgba(0, 0, 0, 0.87)]设置csi_jpeg 模块的属性参数。 [color=rgba(0, 0, 0, 0.87)]函数原型： code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">void hal_csi_jpeg_set_fmt(struct csi_jpeg_fmt *intput_fmt)[color=rgba(0, 0, 0, 0.87)]参数： - intput_fmt：指向csi_jpeg_fmt 结构体类型的配置参数。
[color=rgba(0, 0, 0, 0.87)]返回值： 申请图像buffer[color=rgba(0, 0, 0, 0.87)]CSI/JPEG 模块获取存放图像数据的buffer。多个缓存可以用于建立FIFO，来提高视频采集的效率。 [color=rgba(0, 0, 0, 0.87)]函数原型： code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">int hal_csi_jpeg_reqbuf(unsigned int count)[color=rgba(0, 0, 0, 0.87)]参数： [color=rgba(0, 0, 0, 0.87)]返回值： 释放图像buffer[color=rgba(0, 0, 0, 0.87)]CSI/JPEG 模块释放存放图像数据的buffer。 [color=rgba(0, 0, 0, 0.87)]函数原型： code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">int hal_csi_jpeg_freebuf(void)[color=rgba(0, 0, 0, 0.87)]参数： [color=rgba(0, 0, 0, 0.87)]返回值： 配置流开关[color=rgba(0, 0, 0, 0.87)]csi_jpeg 模块的开流/关流函数，主要是CSI/JPEG 模块的配置和控制CSI 采集功能等。 [color=rgba(0, 0, 0, 0.87)]函数原型： code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">void hal_csi_jpeg_s_stream(unsigned int on)[color=rgba(0, 0, 0, 0.87)]参数： [color=rgba(0, 0, 0, 0.87)]返回值： CSI buffer 出列[color=rgba(0, 0, 0, 0.87)]将CSI driver 已经填充好数据的 buffer 出列，供应用使用。 [color=rgba(0, 0, 0, 0.87)]函数原型： code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">unsigned int hal_csi_dqbuf(struct csi_ipeg_mem *csi_mem, unsigned int timeout_msec)[color=rgba(0, 0, 0, 0.87)]参数： - csi_mem：CSI buffer，指向csi_ipeg_mem 结构体类型的配置参数。
- timeout_msec：单位ms。
[color=rgba(0, 0, 0, 0.87)]返回值： CSI buffer 入队[color=rgba(0, 0, 0, 0.87)]将 User 空间已经处理过的buffer，重新入队，移交给CSI driver，等待填充数据。 [color=rgba(0, 0, 0, 0.87)]函数原型： code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">void hal_csi_qbuf(void)[color=rgba(0, 0, 0, 0.87)]参数： [color=rgba(0, 0, 0, 0.87)]返回值： JPEG buffer 出列[color=rgba(0, 0, 0, 0.87)]将 JPEG driver 已经填充好数据的 buffer 出列，供应用使用。 [color=rgba(0, 0, 0, 0.87)]函数原型： code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">unsigned int hal_jpeg_dqbuf(struct csi_ipeg_mem *jpeg_mem, unsigned int timeout_msec)[color=rgba(0, 0, 0, 0.87)]参数： - jpeg_mem：JPEG buffer，指向csi_ipeg_mem 结构体类型的配置参数。
- timeout_msec：单位ms。
[color=rgba(0, 0, 0, 0.87)]返回值： JPEG buffer 入队[color=rgba(0, 0, 0, 0.87)]将User 空间已经处理过的buffer，重新入队，移交给JPEG driver，等待填充数据。 [color=rgba(0, 0, 0, 0.87)]函数原型： code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">void hal_jpeg_qbuf(void)[color=rgba(0, 0, 0, 0.87)]参数： [color=rgba(0, 0, 0, 0.87)]返回值： 模块使用范例online 模式 code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">#include <stdio.h>#include <string.h>#include <unistd.h>#include "FreeRTOS/_os_semaphore.h"#include "FreeRTOS/_os_time.h"#include "sunxi_hal_twi.h"#include <fcntl.h>#include <hal_cmd.h>#include <hal_log.h>#include <hal_thread.h>#include "hal_csi_jpeg.h"#include "jpegenc.h"#include "cj_platform_cfg.h"/* Macro JPEG_MPART_ENABLE defined in jpegenc.h */#if JPEG_MPART_ENABLE#define JPEG_MPART_SIZE (50*1024)#endifstatic int read_whole_jpg(struct csi_ipeg_mem *jpeg_mem, int order){ FILE* fd; long long res; void *addr; int size; char name[128; hal_log_info("%s line: %d addr = 0x%08x size = %d\n", __func__, __LINE__, jpeg_mem->buf.addr, jpeg_mem->buf.size); sprintf(name, "/data/test_%d.jpg", order); fd = fopen(name, "ab"); if (fd < 0) { hal_log_info("open /data/test.jpg error %d\n", fd); return -1; } addr = jpeg_mem->buf.addr - JPEG_HEADER_LEN; size = jpeg_mem->buf.size + JPEG_HEADER_LEN; res = fwrite(addr, size, 1, fd); if (res < 0) { hal_log_info("write fail(%d), line%d..\n", res, __LINE__); fclose(fd); return -1; } hal_log_info("write JPEG image ok\n"); fclose(fd); return 0;}static int read_part_jpg(void *addr, int size, int order){ FILE* fd; long long res; char name[128; hal_log_info("%s line: %d addr = 0x%08x size = %d\n", __func__, __LINE__, addr, size); sprintf(name, "/data/test_%d.jpg", order); fd = fopen(name, "ab"); if (fd < 0) { hal_log_info("open /data/test.jpg error %d\n", fd); return -1; } res = fwrite(addr, size, 1, fd); if (res < 0) { hal_log_info("write fail(%d), line%d..\n", res, __LINE__); fclose(fd); return -1; } hal_log_info("write JPEG image ok\n"); fclose(fd); return 0;}#if JPEG_MPART_ENABLEstatic uint8_t* gmpartaddr[3;static uint32_t gmpartsize[3;static void jpeg_mpart_cb(struct csi_ipeg_mem *jpeg_mem){ static uint32_t offset = 0; static int index = 0; hal_dcache_clean_invalidate((unsigned long)jpeg_mem->buf.addr + jpeg_mem->mpart_info.buff_offset, jpeg_mem->mpart_info.size); /* necessary operation */ memcpy(gmpartaddr[index + offset, jpeg_mem->buf.addr + jpeg_mem->mpart_info.buff_offset, jpeg_mem->mpart_info.size); offset += jpeg_mem->mpart_info.size; if (jpeg_mem->mpart_info.tail) { /* encode one jpeg finish */ gmpartsize[index = offset; offset = 0; index++; if (index > 3) index = 0; }}#endifstatic void main_test(){ struct csi_jpeg_fmt fmt; unsigned int count, i; struct csi_ipeg_mem *csi_mem; struct csi_ipeg_mem *jpeg_mem[3; unsigned int test_count; unsigned int timeout_msec; unsigned int j = 0; fmt.width = 640; fmt.height = 480; fmt.line_mode = ONLINE_MODE; fmt.output_mode = PIX_FMT_OUT_MAX;#if JPEG_MPART_ENABLE fmt.cb = &jpeg_mpart_cb;#endif hal_csi_jpeg_set_fmt(&fmt); count = 3; if (hal_csi_jpeg_reqbuf(count) != 0) { return; } test_count = 3; hal_csi_jpeg_s_stream(1); hal_log_info("csi stream on!"); timeout_msec = 2000;#if JPEG_MPART_ENABLE for (i = 0; i < count; i++) { gmpartaddr[i = malloc(JPEG_MPART_SIZE); hal_log_info("jpeg pic addr = %x\n", gmpartaddr[i); memset(gmpartaddr[i, 0 , JPEG_MPART_SIZE); }#endif while (test_count-- > 0) { jpeg_mem[j = hal_jpeg_dqbuf(jpeg_mem[j, timeout_msec); hal_jpeg_qbuf(); j++; if (j > count) j = 0; } hal_disable_irq(CSI_JPEG_IRQn);#if JPEG_MPART_ENABLE for (i = 0; i < count; i++) { read_part_jpg(jpeg_mem[i->buf.addr - JPEG_HEADER_LEN, JPEG_HEADER_LEN, i); read_part_jpg(gmpartaddr[i, gmpartsize[i, i); free(gmpartaddr[i); }#else for (i = 0; i < count; i++) read_whole_jpg(jpeg_mem[i, i);#endif hal_csi_jpeg_s_stream(0); hal_csi_jpeg_freebuf(); hal_log_info("csi stream off!!\n");}int cmd_csi_jpeg_online_test(int argc, const char **argv){ hal_log_info("csi jpeg demo started\n"); hal_csi_jpeg_probe(); main_test(); hal_csi_jpeg_remove(); hal_log_info("csi jpeg demo over\n"); return 0;}FINSH_FUNCTION_EXPORT_CMD(cmd_csi_jpeg_online_test, hal_csi_jpeg_online, csi jpeg online encode test)offline 模式 code" style="box-sizing: inherit; -webkit-tap-highlight-color: transparent; font-size: inherit; font-family: inherit; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-width: 0px; border-style: initial; border-color: initial; position: absolute; top: 0.5em; right: 0.5em; z-index: 1; width: 1.5em; height: 1.5em; border-radius: 0.1rem; outline: none; outline-offset: 0.1rem; cursor: pointer; transition: color 0.25s ease 0s;">#include <stdio.h>#include <string.h>#include <unistd.h>#include "FreeRTOS/_os_semaphore.h"#include "FreeRTOS/_os_time.h"#include "sunxi_hal_twi.h"#include <fcntl.h>#include <hal_cmd.h>#include <hal_log.h>#include <hal_thread.h>#include "hal_csi_jpeg.h"#include "jpegenc.h"static int out_fmt = 0;#define CSI_JPEG_IRQn 109 // rv//#define CSI_JPEG_IRQn 93 // armstatic int read_frame(struct csi_ipeg_mem *csi_mem){ FILE* fd; long long res; hal_disable_irq(CSI_JPEG_IRQn); // when write bin, close irq, r/w too slow hal_log_info("%s line: %d addr = 0x%08x size = %d\n", __func__, __LINE__, csi_mem->buf.addr, csi_mem->buf.size); fd = fopen("/data/nv12.bin", "ab"); if (fd < 0) { hal_log_info("open /data/nv12.bin error %d\n", fd); return -1; } res = fwrite(csi_mem->buf.addr, csi_mem->buf.size, 1, fd); if (res < 0) { hal_log_info("write fail(%d), line%d..\n", res, __LINE__); fclose(fd); return -1; } hal_log_info("write YUV image ok\n"); fclose(fd); hal_enable_irq(CSI_JPEG_IRQn); // after write bin, open irq, r/w too slow return 0;}static int read_jpg(struct csi_ipeg_mem *jpeg_mem){ FILE* fd; long long res; void *addr; unsigned int size; char name[128; hal_disable_irq(CSI_JPEG_IRQn); // cfm when write bin, close irq hal_log_info("%s line: %d addr = 0x%08x size = %d\n", __func__, __LINE__, jpeg_mem->buf.addr, jpeg_mem->buf.size); fd = fopen("/data/test.jpg", "ab"); if (fd < 0) { hal_log_info("open /data/test_online.jpg error %d\n", fd); return -1; } addr = jpeg_mem->buf.addr - JPEG_HEADER_LEN; size = jpeg_mem->buf.size + JPEG_HEADER_LEN; res = fwrite(addr, size, 1, fd); if (res < 0) { hal_log_info("write fail(%d), line%d..\n", res, __LINE__); fclose(fd); return -1; } hal_log_info("write JPEG image ok\n"); fclose(fd); hal_enable_irq(CSI_JPEG_IRQn); // cfm after write bin, open irq return 0;}static void main_test(){ struct csi_jpeg_fmt fmt; unsigned int count; struct csi_ipeg_mem *csi_mem; struct csi_ipeg_mem *jpeg_mem; unsigned int test_count; unsigned int timeout_msec; fmt.width = 640; fmt.height = 480; fmt.line_mode = OFFLINE_MODE; fmt.output_mode = PIX_FMT_OUT_MAX; hal_csi_jpeg_set_fmt(&fmt); count = 3; if (hal_csi_jpeg_reqbuf(count) != 0) { return ; } hal_csi_jpeg_s_stream(1); hal_log_info("csi stream on!"); test_count = 200; timeout_msec = 2000; // recommend 2s, 10s for pm test if (!out_fmt) { while (test_count-- > 0) { hal_log_info("test count = %d\n", test_count); csi_mem = hal_csi_dqbuf(csi_mem, timeout_msec); if (test_count == 1) read_frame(csi_mem); hal_csi_qbuf(); } } else { while (test_count-- > 0) { hal_log_info("test count = %d\n", test_count); jpeg_mem = hal_jpeg_dqbuf(jpeg_mem, timeout_msec); if (test_count == 1) read_jpg(jpeg_mem); hal_jpeg_qbuf(); } } hal_csi_jpeg_s_stream(0); hal_csi_jpeg_freebuf(); hal_log_info("csi stream off!!\n");}struct rt_thread *thread;static void csi_thread(void *data){ hal_log_info("csi jpeg demo started\n"); hal_csi_jpeg_probe(); main_test(); hal_csi_jpeg_remove(); hal_log_info("csi jpeg demo over\n"); kthread_stop(thread); return 0;}int cmd_csi_jpeg_offline_test(int argc, const char **argv){ int ret; if (argc < 2) { hal_log_info("Usage: hal_csi_jpeg_offline num. num: 0 is nv12, 1 is jpeg\n"); } else { out_fmt = strtol(argv[1, NULL, 0); } thread = kthread_create((void *)csi_thread, NULL, "csi_thread", 409600, HAL_THREAD_PRIORITY_SYS); kthread_start(thread); return 0;}FINSH_FUNCTION_EXPORT_CMD(cmd_csi_jpeg_offline_test, hal_csi_jpeg_offline, csi jpeg offlin
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