准备工作，柿饼派1块，python2.7，opencv2环境.
彩屏投屏助手py,PC端运行,依赖opencv.
while True:
image = pyautogui.screenshot(region=[0,0,1920,1080]) # x,y,w,h
image.save('screenshot1.bmp')
image = cv2.imread('screenshot1.bmp')
frame1 = cv2.resize(image,(480, 272),interpolation=cv2.INTER_CUBIC)
cv2.imwrite('screenshot.bmp', frame1)
cv2.imshow('img', frame1)
if cv2.waitKey(1)& 0xFF == ord("q"):
server.socket.close()
break
运行服务器
python -m SimpleHTTPServer 8000
柿饼派M3运行代码
include
include
include “string.h”
include “nes_common.h”
include “defe.h”
include “debe.h”
include
define DBG_ENABLE
define DBG_SECTION_NAME “web.cap”
ifdef WEBCLIENT_DEBUG
define DBG_LEVEL DBG_LOG
else
define DBG_LEVEL DBG_INFO
endif / WEBCLIENT_DEBUG /
define DBG_COLOR
include
define WEBCLIENT_HEADER_BUFSZ 4096
define WEBCLIENT_RESPONSE_BUFSZ 480*3
define WEBCLIENT_URI
struct layer_info info;
static void cap_lcd_init(void)
{
rt_memset(&info, 0, sizeof(struct layer_info));
info.index = LAYER1;
info.pipe = PIPE1;
info.alpha_enable = 0;
info.alpha_value = 0;
info.x = 0;
info.y = 0;
info.width = 480;
info.height = 272;
info.format = COLOR_ARGB8888;
/* addr from yuv ctrl */
info.type = LAYER_TYPE_RGB;
info.buffer_addr = 0x81800000;
/* add layer */
tina_debe_layer_add(DEBE, &info);
tina_debe_layer_visible(DEBE, LAYER1);
}
static void rgb888_to_rgba888(unsigned char frame_buf, unsigned char ptr)
{
for(int i=0; i<480; i++)
{
frame_buf[i4] = ptr[i3];
frame_buf[i4+1] = ptr[i3+1];
frame_buf[i4+2] = ptr[i3+2];
}
}
static int web_client_getimage(void)
{
unsigned int * frame_buf = 0x81800000;
int fd = -1, rc = WEBCLIENT_OK;
size_t offset;
int length, total_length = 0;
unsigned char *ptr = RT_NULL;
struct webclient_session* session = RT_NULL;
int resp_status = 0;
static int init = 0;
if(init = 0)
memset(frame_buf, 0, 4802724);
init = 1;
session = webclient_session_create(WEBCLIENT_HEADER_BUFSZ);
if(session == RT_NULL)
{
rc = -WEBCLIENT_NOMEM;
goto __exit;
}
if ((resp_status = webclient_get(session, WEBCLIENT_URI)) != 200)
{
LOG_E("get file failed, wrong response: %d (-0x%X).", resp_status, resp_status);
rc = -WEBCLIENT_ERROR;
goto __exit;
}
ptr = (unsigned char *) web_malloc(WEBCLIENT_RESPONSE_BUFSZ);
if (ptr == RT_NULL)
{
LOG_E("get file failed, no memory for response buffer.");
rc = -WEBCLIENT_NOMEM;
goto __exit;
}
length = webclient_read(session, ptr, 54);
// LOG_RAW("0 %08x \n", frame_buf);
frame_buf += 480*271;
// LOG_RAW("1 %08x \n", frame_buf);
if (session->content_length < 0)
{
while (1)
{
length = webclient_read(session, ptr, WEBCLIENT_RESPONSE_BUFSZ);
if (length > 0)
{
// write(fd, ptr, length);
// rgb888_to_rgba888(frame_buf, ptr);
*frame_buf -= 480;
total_length += length;
LOG_RAW(">%d ", length);
}
else
{
break;
}
}
}
else
{
for (offset = 0; offset < (size_t) session->content_length;)
{
length = webclient_read(session, ptr,
session->content_length - offset > WEBCLIENT_RESPONSE_BUFSZ ?
WEBCLIENT_RESPONSE_BUFSZ : session->content_length - offset);
if (length > 0)
{
// write(fd, ptr, length);
rgb888_to_rgba888(frame_buf, ptr);
total_length += length;
frame_buf -= 480;
// LOG_RAW("* %08x ", frame_buf);
}
else
{
break;
}
offset += length;
}
}
if (total_length)
{
LOG_D("save %d bytes.", total_length);
}
__exit:
// if (fd >= 0)
// {
// close(fd);
// }
if (session != RT_NULL)
{
webclient_close(session);
}
if (ptr != RT_NULL)
{
web_free(ptr);
}
return rc;
}
static void win_cap_thread(void *parameter)
{
cap_lcd_init();
while(1)
{
web_client_getimage();
rt_kprintf("win cap\n");
}
}
void win_cap_demo(void)
{
int tid = rt_thread_create("vnes", win_cap_thread, 0, 2048*16, 18, 20);
if (tid != RT_NULL)
rt_thread_startup(tid);
return 0;
}
MSH_CMD_EXPORT(win_cap_demo, win_cap_demo);
运行视频
爽后感，好玩，帧率低，装A和C之间还可以，暂没有发现有什么实际用途。
原作者：14510690
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