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id-d5856e4579-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/mpp/mpp_recorder_user_guide.html" id="id-d5856e4579-link">MPP 录像使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d5856e4651" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e4651-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/mpp/mini_audio_player_user_guide.html" id="id-d5856e4651-link">MPP 音频播放器使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d5856e4724" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e4724-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/lvgl/lvgl_introduction.html" id="id-d5856e4724-link">LVGL 使用指南</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_nww_hzh_pzb-d5856e4868" class="topicref" data-id="concept_nww_hzh_pzb" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_nww_hzh_pzb-d5856e4868-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-interface-sdk.html" id="concept_nww_hzh_pzb-d5856e4868-link">接口</a><div class="wh-tooltip"><p class="shortdesc">CAN<span class="ph">、CAP</span>、CIR、GPAI、GPIO、I2C、PSADC、PWM 等接口模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-safety-d5856e6083" class="topicref" data-id="chapter-safety" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-safety-d5856e6083-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-safety-sdk.html" id="chapter-safety-d5856e6083-link">安全</a><div class="wh-tooltip"><p class="shortdesc">SPI ENC、CE、eFuse 等安全模块的介绍和使用说明。</p></div></div></div></li></ul></li></ul></div>
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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/dvp/dvp_demo.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">APP Demo</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;">
|
||
Read time: 21 minute(s)
|
||
</div><div class="- topic/body concept/conbody body conbody"><section class="- topic/section section" id="dvp-demo__section_gvw_npn_rdc" data-ofbid="dvp-demo__section_gvw_npn_rdc"><h2 class="- topic/title title sectiontitle">APP 层的处理流程</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d164546e29__20250121171617">APP 中实现从 Sensor -> DVP -> DE 的数据通路，整体的处理流程如下图（图中按照访问对象分为三列，实际上整体是串行执行）：</p>
|
||
<figure class="- topic/fig fig fignone" id="dvp-demo__fig_isj_ppn_rdc" data-ofbid="dvp-demo__fig_isj_ppn_rdc"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="dvp-demo__image_hvw_npn_rdc" src="../../../images/dvp/demo_flow.png" width="480" alt="../../../../_images/demo_flow.png"/></div><br/><figcaption data-caption-side="bottom" class="- topic/title title figcapcenter"><span class="figtitleprefix fig--title-label">图<span class="fig--title-label-number"> 1</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">APP 中的处理流程</span></figcaption></figure>
|
||
<p class="- topic/p p" data-ofbid="d164546e39__20250121171617">test-dvp 支持了 <strong class="+ topic/ph hi-d/b ph b">先旋转再显示</strong>，上图中为了简化并未展示 GE 的处理。在图中将当前 Buf 传给 Video Layer
|
||
环节，如果打开了旋转功能（参数 <code class="+ topic/ph pr-d/codeph ph codeph">-a</code> ），会先将 Buf 送给 GE 旋转，然后才给 DE 去显示。</p>
|
||
</section><section class="- topic/section section" id="dvp-demo__section_ivw_npn_rdc" data-ofbid="dvp-demo__section_ivw_npn_rdc"><h2 class="- topic/title title sectiontitle">APP Demo 参考实现</h2>
|
||
|
||
<div class="- topic/p p" data-ofbid="d164546e53__20250121171617">Demo 代码见
|
||
<span class="+ topic/ph sw-d/filepath ph filepath">test-dvp/test_dvp.c</span>，如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock" id="dvp-demo__codeblock_b1s_5pn_rdc" data-ofbid="dvp-demo__codeblock_b1s_5pn_rdc"><code>#define VID_BUF_NUM 3
|
||
#define DVP_PLANE_NUM 2
|
||
#define CMA_BUF_MAX (8 * 1024 * 1024)
|
||
#define DMA_HEAP_DEV "/dev/dma_heap/reserved"
|
||
#define FB_DEV "/dev/fb0"
|
||
#define VIDEO_DEV "/dev/video0"
|
||
#define SENSOR_DEV "/dev/v4l-subdev0"
|
||
#define DVP_SUBDEV_DEV "/dev/v4l-subdev1"
|
||
|
||
static const char sopts[] = "f:c:w:h:r:a:uv";
|
||
static const struct option lopts[] = {
|
||
{"format", required_argument, NULL, 'f'},
|
||
{"capture", required_argument, NULL, 'c'},
|
||
{"width", required_argument, NULL, 'w'},
|
||
{"height", required_argument, NULL, 'h'},
|
||
{"framerate", required_argument, NULL, 'r'},
|
||
{"angle", required_argument, NULL, 'a'},
|
||
{"usage", no_argument, NULL, 'u'},
|
||
{"verbose", required_argument, NULL, 'v'},
|
||
{0, 0, 0, 0}
|
||
};
|
||
|
||
struct video_plane {
|
||
int fd;
|
||
int buf;
|
||
int len;
|
||
};
|
||
|
||
struct video_buf_info {
|
||
char *vaddr;
|
||
u32 len;
|
||
u32 offset;
|
||
struct video_plane planes[DVP_PLANE_NUM];
|
||
};
|
||
|
||
struct aic_video_data {
|
||
int w;
|
||
int h;
|
||
int frame_size;
|
||
int fmt; // output format
|
||
struct v4l2_subdev_format src_fmt;
|
||
struct video_buf_info binfo[VID_BUF_NUM + 1];
|
||
};
|
||
|
||
struct aic_media_dev {
|
||
/* about Sensor */
|
||
int sensor_fd;
|
||
int sensor_width;
|
||
int sensor_height;
|
||
int sensor_fr;
|
||
|
||
/* about DVP */
|
||
int dvp_fd;
|
||
int video_fd;
|
||
|
||
/* about GE */
|
||
struct mpp_ge *ge_dev;
|
||
int rotation;
|
||
|
||
/* about DE */
|
||
int fb_fd;
|
||
int fb_xres;
|
||
int fb_yres;
|
||
};
|
||
|
||
static struct aic_media_dev g_mdev = {0};
|
||
static struct aic_video_data g_vdata = {0};
|
||
static int g_verbose = 0;
|
||
|
||
/* Functions */
|
||
|
||
void usage(char *program)
|
||
{
|
||
printf("Usage: %s [options]: \n", program);
|
||
printf("\t -f, --format\t\tformat of input video, NV16/NV12 etc\n");
|
||
printf("\t -c, --count\t\tthe number of capture frame \n");
|
||
printf("\t -w, --width\t\tthe width of sensor \n");
|
||
printf("\t -h, --height\t\tthe height of sensor \n");
|
||
printf("\t -r, --framerate\tthe framerate of sensor \n");
|
||
#ifdef SUPPORT_ROTATION
|
||
printf("\t -a, --angle\t\tthe angle of rotation \n");
|
||
#endif
|
||
printf("\t -u, --usage \n");
|
||
printf("\t -v, --verbose \n");
|
||
printf("\n");
|
||
printf("Example: %s -f nv16 -c 1\n", program);
|
||
}
|
||
|
||
/* Open a device file to be needed. */
|
||
int device_open(char *_fname, int _flag)
|
||
{
|
||
s32 fd = -1;
|
||
|
||
fd = open(_fname, _flag);
|
||
if (fd < 0) {
|
||
ERR("Failed to open %s errno: %d[%s]\n",
|
||
_fname, errno, strerror(errno));
|
||
exit(0);
|
||
}
|
||
return fd;
|
||
}
|
||
|
||
int get_fb_size(void)
|
||
{
|
||
struct fb_var_screeninfo var;
|
||
|
||
if (ioctl(g_mdev.fb_fd, FBIOGET_VSCREENINFO, &var) < 0) {
|
||
ERR("ioctl FBIOGET_VSCREENINFO");
|
||
close(g_mdev.fb_fd);
|
||
return -1;
|
||
}
|
||
g_mdev.fb_xres = var.xres;
|
||
g_mdev.fb_yres = var.yres;
|
||
printf("Framebuf size: width %d, height %d\n", g_mdev.fb_xres, g_mdev.fb_yres);
|
||
return 0;
|
||
}
|
||
|
||
int set_ui_layer_alpha(int val)
|
||
{
|
||
int ret = 0;
|
||
struct aicfb_alpha_config alpha = {0};
|
||
|
||
alpha.layer_id = 1;
|
||
alpha.enable = 1;
|
||
alpha.mode = 1;
|
||
alpha.value = val;
|
||
ret = ioctl(g_mdev.fb_fd, AICFB_UPDATE_ALPHA_CONFIG, &alpha);
|
||
if (ret < 0)
|
||
ERR("ioctl() failed! errno: %d[%s]\n", errno, strerror(errno));
|
||
|
||
return ret;
|
||
}
|
||
|
||
void vidbuf_dmabuf_begin(struct aic_video_data *vdata, u32 num)
|
||
{
|
||
int i, j;
|
||
struct dma_buf_info fds = {0};
|
||
|
||
for (i = 0; i < num; i++) {
|
||
struct video_plane *plane = vdata->binfo[i].planes;
|
||
for (j = 0; j < DVP_PLANE_NUM; j++, plane++) {
|
||
fds.fd = plane->fd;
|
||
if (ioctl(g_mdev.fb_fd, AICFB_ADD_DMABUF, &fds) < 0)
|
||
ERR("Failed to add DMABUF for %d! %d[%s]\n",
|
||
plane->fd, errno, strerror(errno));
|
||
}
|
||
}
|
||
}
|
||
|
||
void vidbuf_dmabuf_end(struct aic_video_data *vdata, u32 num)
|
||
{
|
||
int i, j;
|
||
struct dma_buf_info fds = {0};
|
||
|
||
for (i = 0; i < num; i++) {
|
||
struct video_plane *plane = vdata->binfo[i].planes;
|
||
for (j = 0; j < DVP_PLANE_NUM; j++, plane++) {
|
||
fds.fd = plane->fd;
|
||
if (ioctl(g_mdev.fb_fd, AICFB_RM_DMABUF, &fds) < 0)
|
||
ERR("Failed to rm DMABUF for %d! err %d[%s]\n",
|
||
plane->fd, errno, strerror(errno));
|
||
}
|
||
}
|
||
}
|
||
|
||
int sensor_set_fmt(void)
|
||
{
|
||
int ret = 0;
|
||
struct v4l2_subdev_format f = {0};
|
||
struct v4l2_subdev_frame_interval fr = {0};
|
||
|
||
/* Set resolution */
|
||
|
||
f.pad = 0;
|
||
f.which = V4L2_SUBDEV_FORMAT_ACTIVE;
|
||
if (ioctl(g_mdev.sensor_fd, VIDIOC_SUBDEV_G_FMT, &f) < 0) {
|
||
ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
|
||
return -1;
|
||
}
|
||
|
||
if (f.format.width != g_mdev.sensor_width ||
|
||
f.format.height != g_mdev.sensor_height) {
|
||
printf("Set sensor resolution: %dx%d -> %dx%d\n",
|
||
f.format.width, f.format.height,
|
||
g_mdev.sensor_width, g_mdev.sensor_height);
|
||
f.format.width = g_mdev.sensor_width;
|
||
f.format.height = g_mdev.sensor_height;
|
||
if (ioctl(g_mdev.sensor_fd, VIDIOC_SUBDEV_S_FMT, &f) < 0) {
|
||
ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
|
||
return -1;
|
||
}
|
||
}
|
||
|
||
/* Confirm the current resolution */
|
||
if (ioctl(g_mdev.sensor_fd, VIDIOC_SUBDEV_G_FMT, &f) < 0) {
|
||
ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
|
||
return -1;
|
||
}
|
||
|
||
/* Set framerate */
|
||
|
||
ret = ioctl(g_mdev.sensor_fd, VIDIOC_SUBDEV_G_FRAME_INTERVAL, &fr);
|
||
if ((ret == 0) && (fr.interval.denominator != g_mdev.sensor_fr)) {
|
||
printf("Set sensor framerate: %d -> %d\n",
|
||
fr.interval.denominator, g_mdev.sensor_fr);
|
||
fr.interval.denominator = g_mdev.sensor_fr;
|
||
ret = ioctl(g_mdev.sensor_fd, VIDIOC_SUBDEV_S_FRAME_INTERVAL, &fr);
|
||
if (ret < 0) {
|
||
ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
|
||
return -1;
|
||
}
|
||
|
||
/* Confirm the current framerate */
|
||
ioctl(g_mdev.sensor_fd, VIDIOC_SUBDEV_G_FRAME_INTERVAL, &fr);
|
||
}
|
||
|
||
g_vdata.src_fmt = f;
|
||
g_vdata.w = g_vdata.src_fmt.format.width;
|
||
g_vdata.h = g_vdata.src_fmt.format.height;
|
||
printf("Sensor format: w %d h %d, code %#x, colorspace %#x, fr %d\n",
|
||
f.format.width, f.format.height, f.format.code,
|
||
f.format.colorspace, fr.interval.denominator);
|
||
return 0;
|
||
}
|
||
|
||
int dvp_subdev_set_fmt(void)
|
||
{
|
||
struct v4l2_subdev_format f = g_vdata.src_fmt;
|
||
|
||
|
||
f.pad = 0;
|
||
f.which = V4L2_SUBDEV_FORMAT_ACTIVE;
|
||
if (ioctl(g_mdev.dvp_fd, VIDIOC_SUBDEV_S_FMT, &f) < 0) {
|
||
ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
|
||
return -1;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
int dvp_cfg(int width, int height, int format)
|
||
{
|
||
struct v4l2_format f = {0};
|
||
|
||
f.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
|
||
f.fmt.pix_mp.width = g_vdata.src_fmt.format.width;
|
||
f.fmt.pix_mp.height = g_vdata.src_fmt.format.height;
|
||
f.fmt.pix_mp.pixelformat = g_vdata.fmt;
|
||
f.fmt.pix_mp.num_planes = DVP_PLANE_NUM;
|
||
if (ioctl(g_mdev.video_fd, VIDIOC_S_FMT, &f) < 0) {
|
||
ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
|
||
return -1;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
int dvp_expbuf(int index)
|
||
{
|
||
int i;
|
||
struct video_buf_info *binfo = &g_vdata.binfo[index];
|
||
struct v4l2_exportbuffer expbuf = {0};
|
||
|
||
for (i = 0; i < DVP_PLANE_NUM; i++) {
|
||
memset(&expbuf, 0, sizeof(struct v4l2_exportbuffer));
|
||
expbuf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
|
||
expbuf.index = index;
|
||
expbuf.plane = i;
|
||
if (ioctl(g_mdev.video_fd, VIDIOC_EXPBUF, &expbuf) < 0) {
|
||
ERR("%d/%d: ioctl() failed! err %d[%s]\n",
|
||
i, index, errno, strerror(errno));
|
||
return -1;
|
||
}
|
||
binfo->planes[i].fd = expbuf.fd;
|
||
if (g_verbose)
|
||
DBG("%d-%d Export DMABUF fd %d\n", index, i, expbuf.fd);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
int dvp_request_buf(int num)
|
||
{
|
||
int i;
|
||
struct v4l2_buffer buf = {0};
|
||
struct v4l2_requestbuffers req = {0};
|
||
struct v4l2_plane planes[DVP_PLANE_NUM];
|
||
|
||
req.count = num;
|
||
req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
|
||
req.memory = V4L2_MEMORY_MMAP; // Only MMAP will do alloc memory
|
||
if (ioctl(g_mdev.video_fd, VIDIOC_REQBUFS, &req) < 0) {
|
||
ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
|
||
return -1;
|
||
}
|
||
|
||
for (i = 0; i < num; i++) {
|
||
if (dvp_expbuf(i) < 0)
|
||
return -1;
|
||
|
||
memset(&buf, 0, sizeof(struct v4l2_buffer));
|
||
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
|
||
buf.index = i;
|
||
buf.length = DVP_PLANE_NUM;
|
||
buf.memory = V4L2_MEMORY_DMABUF;
|
||
buf.m.planes = planes;
|
||
if (ioctl(g_mdev.video_fd, VIDIOC_QUERYBUF, &buf) < 0) {
|
||
ERR("ioctl() failed! err %d[%s]\n",
|
||
errno, strerror(errno));
|
||
return -1;
|
||
}
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
void dvp_release_buf(int num)
|
||
{
|
||
int i;
|
||
struct video_buf_info *binfo = NULL;
|
||
|
||
for (i = 0; i < num; i++) {
|
||
binfo = &g_vdata.binfo[i];
|
||
if (binfo->vaddr) {
|
||
munmap(binfo->vaddr, binfo->len);
|
||
binfo->vaddr = NULL;
|
||
}
|
||
}
|
||
}
|
||
|
||
int dvp_queue_buf(int index)
|
||
{
|
||
struct v4l2_buffer buf = {0};
|
||
struct v4l2_plane planes[DVP_PLANE_NUM] = {0};
|
||
|
||
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
|
||
buf.memory = V4L2_MEMORY_MMAP;
|
||
buf.index = index;
|
||
buf.length = DVP_PLANE_NUM;
|
||
buf.m.planes = planes;
|
||
if (ioctl(g_mdev.video_fd, VIDIOC_QBUF, &buf) < 0) {
|
||
ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
|
||
return -1;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
int dvp_dequeue_buf(int *index)
|
||
{
|
||
struct v4l2_buffer buf = {0};
|
||
struct v4l2_plane planes[DVP_PLANE_NUM] = {0};
|
||
|
||
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
|
||
buf.memory = V4L2_MEMORY_MMAP;
|
||
buf.length = DVP_PLANE_NUM;
|
||
buf.m.planes = planes;
|
||
if (ioctl(g_mdev.video_fd, VIDIOC_DQBUF, &buf) < 0) {
|
||
ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
|
||
return -1;
|
||
}
|
||
|
||
*index = buf.index;
|
||
return 0;
|
||
}
|
||
|
||
int dvp_start(void)
|
||
{
|
||
enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
|
||
|
||
if (ioctl(g_mdev.video_fd, VIDIOC_STREAMON, &type) < 0) {
|
||
ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
|
||
return -1;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
int dvp_stop(void)
|
||
{
|
||
enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
|
||
|
||
if (ioctl(g_mdev.video_fd, VIDIOC_STREAMOFF, &type) < 0) {
|
||
ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
|
||
return -1;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
#ifdef SUPPORT_ROTATION
|
||
int do_rotate(struct aic_video_data *vdata, int index)
|
||
{
|
||
struct ge_bitblt blt = {0};
|
||
struct mpp_buf *src = &blt.src_buf;
|
||
struct mpp_buf *dst = &blt.dst_buf;
|
||
int ret = 0;
|
||
|
||
if (g_vdata.fmt == V4L2_PIX_FMT_NV16) {
|
||
src->format = MPP_FMT_NV16;
|
||
dst->format = MPP_FMT_NV16;
|
||
} else {
|
||
src->format = MPP_FMT_NV12;
|
||
dst->format = MPP_FMT_NV12;
|
||
}
|
||
|
||
src->buf_type = MPP_DMA_BUF_FD;
|
||
src->fd[0] = vdata->binfo[index].planes[0].fd;
|
||
src->fd[1] = vdata->binfo[index].planes[1].fd;
|
||
src->stride[0] = vdata->w;
|
||
src->stride[1] = vdata->w;
|
||
src->size.width = vdata->w;
|
||
src->size.height = vdata->h;
|
||
|
||
dst->buf_type = MPP_DMA_BUF_FD;
|
||
dst->fd[0] = vdata->binfo[VID_BUF_NUM].planes[0].fd;
|
||
dst->fd[1] = vdata->binfo[VID_BUF_NUM].planes[1].fd;
|
||
if (g_mdev.rotation == MPP_ROTATION_180) {
|
||
dst->stride[0] = vdata->w;
|
||
dst->stride[1] = vdata->w;
|
||
dst->size.width = vdata->w;
|
||
dst->size.height = vdata->h;
|
||
} else {
|
||
dst->stride[0] = vdata->h;
|
||
dst->stride[1] = vdata->h;
|
||
dst->size.width = vdata->h;
|
||
dst->size.height = vdata->w;
|
||
}
|
||
blt.ctrl.flags = g_mdev.rotation;
|
||
#if 0
|
||
printf("GE: %d(%d) * %d -> %d * %d, canvas %d(%d) * %d\n",
|
||
src->size.width, src->stride[0],
|
||
src->size.height,
|
||
dst->crop.width, dst->crop.height,
|
||
dst->size.width, dst->stride[0],
|
||
dst->size.height);
|
||
#endif
|
||
ret = mpp_ge_bitblt(g_mdev.ge_dev, &blt);
|
||
if (ret < 0) {
|
||
ERR("GE bitblt failed\n");
|
||
return -1;
|
||
}
|
||
|
||
ret = mpp_ge_emit(g_mdev.ge_dev);
|
||
if (ret < 0) {
|
||
ERR("GE emit failed\n");
|
||
return -1;
|
||
}
|
||
|
||
ret = mpp_ge_sync(g_mdev.ge_dev);
|
||
if (ret < 0) {
|
||
ERR("GE sync failed\n");
|
||
return -1;
|
||
}
|
||
return 0;
|
||
}
|
||
#endif
|
||
|
||
#define DVP_SCALE_OFFSET 10
|
||
|
||
int video_layer_set(struct aic_video_data *vdata, int index)
|
||
{
|
||
struct aicfb_layer_data layer = {0};
|
||
struct video_buf_info *binfo = &vdata->binfo[index];
|
||
u32 video_w, video_h, fb_xres, fb_yres;
|
||
|
||
layer.layer_id = 0;
|
||
layer.enable = 1;
|
||
|
||
if (g_mdev.rotation == MPP_ROTATION_90
|
||
|| g_mdev.rotation == MPP_ROTATION_270) {
|
||
video_w = vdata->h;
|
||
video_h = vdata->w;
|
||
fb_xres = g_mdev.fb_yres;
|
||
fb_yres = g_mdev.fb_xres;
|
||
} else {
|
||
video_w = vdata->w;
|
||
video_h = vdata->h;
|
||
fb_xres = g_mdev.fb_xres;
|
||
fb_yres = g_mdev.fb_yres;
|
||
}
|
||
|
||
if ((video_w < fb_xres - 2 * DVP_SCALE_OFFSET) &&
|
||
(video_h < fb_yres - 2 * DVP_SCALE_OFFSET)) {
|
||
layer.scale_size.width = video_w;
|
||
layer.scale_size.height = video_h;
|
||
} else {
|
||
layer.scale_size.width = fb_xres - 2 * DVP_SCALE_OFFSET;
|
||
layer.scale_size.height = fb_yres - 2 * DVP_SCALE_OFFSET;
|
||
}
|
||
|
||
layer.pos.x = DVP_SCALE_OFFSET;
|
||
layer.pos.y = DVP_SCALE_OFFSET;
|
||
layer.buf.size.width = video_w;
|
||
layer.buf.size.height = video_h;
|
||
if (g_vdata.fmt == V4L2_PIX_FMT_NV16)
|
||
layer.buf.format = MPP_FMT_NV16;
|
||
else
|
||
layer.buf.format = MPP_FMT_NV12;
|
||
|
||
layer.buf.buf_type = MPP_DMA_BUF_FD;
|
||
layer.buf.fd[0] = binfo->planes[0].fd;
|
||
layer.buf.fd[1] = binfo->planes[1].fd;
|
||
layer.buf.stride[0] = video_w;
|
||
layer.buf.stride[1] = video_w;
|
||
|
||
if (ioctl(g_mdev.fb_fd, AICFB_UPDATE_LAYER_CONFIG, &layer) < 0) {
|
||
ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
|
||
return -1;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
int video_layer_disable(void)
|
||
{
|
||
struct aicfb_layer_data layer = {0};
|
||
|
||
layer.layer_id = 0;
|
||
if (ioctl(g_mdev.fb_fd, AICFB_UPDATE_LAYER_CONFIG, &layer) < 0) {
|
||
ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
|
||
return -1;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
#define US_PER_SEC 1000000
|
||
|
||
static void show_fps(struct timeval *start, struct timeval *end, int cnt)
|
||
{
|
||
double diff;
|
||
|
||
if (end->tv_usec < start->tv_usec) {
|
||
diff = (double)(US_PER_SEC + end->tv_usec - start->tv_usec)/US_PER_SEC;
|
||
diff += end->tv_sec - 1 - start->tv_sec;
|
||
} else {
|
||
diff = (double)(end->tv_usec - start->tv_usec)/US_PER_SEC;
|
||
diff += end->tv_sec - start->tv_sec;
|
||
}
|
||
|
||
printf("\nDVP frame rate: %.1f, frame %d / %.1f seconds\n",
|
||
(double)cnt/diff, cnt, diff);
|
||
}
|
||
|
||
int dvp_capture(u32 cnt)
|
||
{
|
||
int i, index = 0;
|
||
struct timeval start, end;
|
||
|
||
gettimeofday(&start, NULL);
|
||
for (i = 0; i < cnt; i++) {
|
||
if (dvp_dequeue_buf(&index) < 0)
|
||
return -1;
|
||
if (g_verbose)
|
||
DBG("Set the buf %d to video layer\n", index);
|
||
|
||
if (g_mdev.rotation) {
|
||
#ifdef SUPPORT_ROTATION
|
||
if (do_rotate(&g_vdata, index) < 0)
|
||
return -1;
|
||
|
||
if (video_layer_set(&g_vdata, VID_BUF_NUM) < 0)
|
||
return -1;
|
||
#endif
|
||
} else {
|
||
if (video_layer_set(&g_vdata, index) < 0)
|
||
return -1;
|
||
}
|
||
|
||
dvp_queue_buf(index);
|
||
|
||
if (i && (i % 1000 == 0)) {
|
||
gettimeofday(&end, NULL);
|
||
show_fps(&start, &end, i);
|
||
}
|
||
}
|
||
gettimeofday(&end, NULL);
|
||
show_fps(&start, &end, i);
|
||
|
||
return 0;
|
||
}
|
||
|
||
int media_dev_open(void)
|
||
{
|
||
g_mdev.sensor_fd = device_open(SENSOR_DEV, O_RDWR);
|
||
if (g_mdev.sensor_fd < 0)
|
||
return -1;
|
||
|
||
g_mdev.video_fd = device_open(VIDEO_DEV, O_RDWR);
|
||
if (g_mdev.video_fd < 0)
|
||
return -1;
|
||
|
||
g_mdev.dvp_fd = device_open(DVP_SUBDEV_DEV, O_RDWR);
|
||
if (g_mdev.dvp_fd < 0)
|
||
return -1;
|
||
|
||
g_mdev.fb_fd = device_open(FB_DEV, O_RDWR);
|
||
if (g_mdev.fb_fd < 0)
|
||
return -1;
|
||
|
||
#ifdef SUPPORT_ROTATION
|
||
if (g_mdev.rotation) {
|
||
g_mdev.ge_dev = mpp_ge_open();
|
||
if (!g_mdev.ge_dev) {
|
||
ERR("Failed to open GE\n");
|
||
return -1;
|
||
}
|
||
}
|
||
#endif
|
||
return 0;
|
||
}
|
||
|
||
void media_dev_close(void)
|
||
{
|
||
if (g_mdev.sensor_fd > 0)
|
||
close(g_mdev.sensor_fd);
|
||
if (g_mdev.video_fd > 0)
|
||
close(g_mdev.video_fd);
|
||
if (g_mdev.dvp_fd > 0)
|
||
close(g_mdev.dvp_fd);
|
||
if (g_mdev.fb_fd > 0)
|
||
close(g_mdev.fb_fd);
|
||
#ifdef SUPPORT_ROTATION
|
||
if (g_mdev.ge_dev)
|
||
mpp_ge_close(g_mdev.ge_dev);
|
||
#endif
|
||
}
|
||
|
||
int main(int argc, char **argv)
|
||
{
|
||
int c, i, frame_cnt = 1;
|
||
|
||
g_mdev.sensor_width = 640;
|
||
g_mdev.sensor_height = 480;
|
||
g_mdev.sensor_fr = 30;
|
||
g_vdata.fmt = V4L2_PIX_FMT_NV16;
|
||
while ((c = getopt_long(argc, argv, sopts, lopts, NULL)) != -1) {
|
||
switch (c) {
|
||
case 'f':
|
||
if (strncasecmp("nv12", optarg, strlen(optarg)) == 0)
|
||
g_vdata.fmt = V4L2_PIX_FMT_NV12;
|
||
break;
|
||
case 'c':
|
||
frame_cnt = str2int(optarg);
|
||
break;
|
||
case 'w':
|
||
g_mdev.sensor_width = str2int(optarg);
|
||
break;
|
||
case 'h':
|
||
g_mdev.sensor_height = str2int(optarg);
|
||
break;
|
||
case 'r':
|
||
g_mdev.sensor_fr = str2int(optarg);
|
||
break;
|
||
#ifdef SUPPORT_ROTATION
|
||
case 'a':
|
||
g_mdev.rotation = (str2int(optarg) % 360) / 90;
|
||
break;
|
||
#endif
|
||
case 'u':
|
||
usage(argv[0]);
|
||
return 0;
|
||
case 'v':
|
||
g_verbose = 1;
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
printf("Capture %d frames from camera\n", frame_cnt);
|
||
printf("DVP out format: %s\n",
|
||
g_vdata.fmt == V4L2_PIX_FMT_NV16 ? "NV16" : "NV12");
|
||
|
||
if (media_dev_open())
|
||
goto end;
|
||
|
||
if (sensor_set_fmt() < 0)
|
||
return -1;
|
||
if (dvp_subdev_set_fmt() < 0)
|
||
return -1;
|
||
|
||
if (g_vdata.fmt == V4L2_PIX_FMT_NV16)
|
||
g_vdata.frame_size = g_vdata.w * g_vdata.h * 2;
|
||
else
|
||
g_vdata.frame_size = (g_vdata.w * g_vdata.h * 3) >> 1;
|
||
|
||
if (get_fb_size())
|
||
goto end;
|
||
if (set_ui_layer_alpha(15) < 0)
|
||
goto end;
|
||
|
||
if (dvp_cfg(g_vdata.w, g_vdata.h, g_vdata.fmt) < 0)
|
||
goto end;
|
||
if (g_mdev.rotation) {
|
||
printf("Rotate %d by GE\n", g_mdev.rotation * 90);
|
||
/* Use the last buf connect GE and Video layer */
|
||
if (dvp_request_buf(VID_BUF_NUM + 1) < 0)
|
||
goto end;
|
||
vidbuf_dmabuf_begin(&g_vdata, VID_BUF_NUM + 1);
|
||
} else {
|
||
if (dvp_request_buf(VID_BUF_NUM) < 0)
|
||
goto end;
|
||
|
||
vidbuf_dmabuf_begin(&g_vdata, VID_BUF_NUM);
|
||
}
|
||
|
||
for (i = 0; i < VID_BUF_NUM; i++)
|
||
if (dvp_queue_buf(i) < 0)
|
||
goto end;
|
||
|
||
if (dvp_start() < 0)
|
||
goto end;
|
||
|
||
dvp_capture(frame_cnt);
|
||
|
||
dvp_stop();
|
||
if (g_mdev.rotation) {
|
||
vidbuf_dmabuf_end(&g_vdata, VID_BUF_NUM + 1);
|
||
dvp_release_buf(VID_BUF_NUM + 1);
|
||
} else {
|
||
vidbuf_dmabuf_end(&g_vdata, VID_BUF_NUM);
|
||
dvp_release_buf(VID_BUF_NUM);
|
||
}
|
||
|
||
end:
|
||
video_layer_disable();
|
||
media_dev_close();
|
||
return 0;
|
||
}</code></pre></div>
|
||
</section></div></article></main></div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</div>
|
||
|
||
<nav role="navigation" id="wh_topic_toc" aria-label="On this page" class="col-lg-2 d-none d-lg-block navbar d-print-none">
|
||
<div id="wh_topic_toc_content">
|
||
|
||
<div class=" wh_topic_toc "><div class="wh_topic_label">在本页上</div><ul><li class="section-item"><div class="section-title"><a href="#dvp-demo__section_gvw_npn_rdc" data-tocid="dvp-demo__section_gvw_npn_rdc">APP 层的处理流程</a></div></li><li class="section-item"><div class="section-title"><a href="#dvp-demo__section_ivw_npn_rdc" data-tocid="dvp-demo__section_ivw_npn_rdc">APP Demo 参考实现</a></div></li></ul></div>
|
||
|
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</div>
|
||
</nav>
|
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||
</div>
|
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</div>
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||
|
||
|
||
|
||
</div>
|
||
<footer class="navbar navbar-default wh_footer">
|
||
<div class=" footer-container mx-auto ">
|
||
<title>footer def</title>
|
||
<style><!--
|
||
|
||
.p1 {
|
||
font-family: FangZhengShuSong, Times, serif;
|
||
}
|
||
.p2 {
|
||
font-family: Arial, Helvetica, sans-serif;
|
||
}
|
||
.p3 {
|
||
font-family: "Lucida Console", "Courier New", monospace;
|
||
}
|
||
|
||
--></style>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<div class="webhelp.fragment.footer">
|
||
<p class="p1">Copyright © 2019-2024 广东匠芯创科技有限公司. All rights reserved.</p>
|
||
</div><div>
|
||
<div class="generation_time">
|
||
Update Time: 2025-01-21
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</footer>
|
||
|
||
<div id="go2top" class="d-print-none">
|
||
<span class="oxy-icon oxy-icon-up"></span>
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</div>
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<div id="modal_img_large" class="modal">
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<span class="close oxy-icon oxy-icon-remove"></span>
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<div id="modal_img_container"></div>
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<div id="caption"></div>
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</div>
|
||
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<script src="${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer="defer"></script>
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</body>
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</html> |