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914 lines
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914 lines
31 KiB
HTML
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<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><meta name="description" content="APP 层的处理流程 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）： 图 1 . APP 中的处理流程 test-dvp 支持了 先旋转再显示 ，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 -a ），会先将 Buf 送给 GE ..."/><meta name="DC.rights.owner" content="(C) 版权 2025"/><meta name="copyright" content="(C) 版权 2025"/><meta name="generator" content="DITA-OT"/><meta name="DC.type" content="concept"/><meta name="DC.contributor" content="yan.wang"/><meta name="DC.date.modified" content="2024-12-13"/><meta name="DC.format" content="HTML5"/><meta name="DC.identifier" content="dvp-demo"/><title>APP Demo</title><!-- Build number 2023110923. --><meta name="wh-path2root" content="../../../"/><meta name="wh-toc-id" content=""/><meta name="wh-source-relpath" content="topics/sdk/dvp/dvp_demo.dita"/><meta name="wh-out-relpath" content="topics/sdk/dvp/dvp_demo.html"/>
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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">13 Dec 2024</div><div style="color: gray;">
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Read time: 21 minute(s)
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</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>
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<p class="- topic/p p" data-ofbid="d29923e27__20250121171507">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>
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<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>
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<p class="- topic/p p" data-ofbid="d29923e37__20250121171507">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
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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>
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</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>
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<div class="- topic/p p" data-ofbid="d29923e51__20250121171507">Demo 代码见
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<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
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#define DVP_PLANE_NUM 2
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#define CMA_BUF_MAX (8 * 1024 * 1024)
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#define DMA_HEAP_DEV "/dev/dma_heap/reserved"
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#define FB_DEV "/dev/fb0"
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#define VIDEO_DEV "/dev/video0"
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#define SENSOR_DEV "/dev/v4l-subdev0"
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#define DVP_SUBDEV_DEV "/dev/v4l-subdev1"
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static const char sopts[] = "f:c:w:h:r:a:uv";
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static const struct option lopts[] = {
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{"format", required_argument, NULL, 'f'},
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{"capture", required_argument, NULL, 'c'},
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{"width", required_argument, NULL, 'w'},
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{"height", required_argument, NULL, 'h'},
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{"framerate", required_argument, NULL, 'r'},
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{"angle", required_argument, NULL, 'a'},
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{"usage", no_argument, NULL, 'u'},
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{"verbose", required_argument, NULL, 'v'},
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{0, 0, 0, 0}
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};
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struct video_plane {
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int fd;
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int buf;
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int len;
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};
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struct video_buf_info {
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char *vaddr;
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u32 len;
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u32 offset;
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struct video_plane planes[DVP_PLANE_NUM];
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};
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struct aic_video_data {
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int w;
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int h;
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int frame_size;
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int fmt; // output format
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struct v4l2_subdev_format src_fmt;
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struct video_buf_info binfo[VID_BUF_NUM + 1];
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};
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struct aic_media_dev {
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/* about Sensor */
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int sensor_fd;
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int sensor_width;
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int sensor_height;
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int sensor_fr;
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/* about DVP */
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int dvp_fd;
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int video_fd;
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/* about GE */
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struct mpp_ge *ge_dev;
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int rotation;
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/* about DE */
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int fb_fd;
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int fb_xres;
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int fb_yres;
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};
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static struct aic_media_dev g_mdev = {0};
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static struct aic_video_data g_vdata = {0};
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static int g_verbose = 0;
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/* Functions */
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void usage(char *program)
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{
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printf("Usage: %s [options]: \n", program);
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printf("\t -f, --format\t\tformat of input video, NV16/NV12 etc\n");
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printf("\t -c, --count\t\tthe number of capture frame \n");
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printf("\t -w, --width\t\tthe width of sensor \n");
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printf("\t -h, --height\t\tthe height of sensor \n");
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printf("\t -r, --framerate\tthe framerate of sensor \n");
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#ifdef SUPPORT_ROTATION
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printf("\t -a, --angle\t\tthe angle of rotation \n");
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#endif
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printf("\t -u, --usage \n");
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printf("\t -v, --verbose \n");
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printf("\n");
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printf("Example: %s -f nv16 -c 1\n", program);
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}
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/* Open a device file to be needed. */
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int device_open(char *_fname, int _flag)
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{
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s32 fd = -1;
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fd = open(_fname, _flag);
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if (fd < 0) {
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ERR("Failed to open %s errno: %d[%s]\n",
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_fname, errno, strerror(errno));
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exit(0);
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}
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return fd;
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}
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int get_fb_size(void)
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{
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struct fb_var_screeninfo var;
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if (ioctl(g_mdev.fb_fd, FBIOGET_VSCREENINFO, &var) < 0) {
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ERR("ioctl FBIOGET_VSCREENINFO");
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close(g_mdev.fb_fd);
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return -1;
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}
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g_mdev.fb_xres = var.xres;
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g_mdev.fb_yres = var.yres;
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printf("Framebuf size: width %d, height %d\n", g_mdev.fb_xres, g_mdev.fb_yres);
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return 0;
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}
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int set_ui_layer_alpha(int val)
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{
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int ret = 0;
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struct aicfb_alpha_config alpha = {0};
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alpha.layer_id = 1;
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alpha.enable = 1;
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alpha.mode = 1;
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alpha.value = val;
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ret = ioctl(g_mdev.fb_fd, AICFB_UPDATE_ALPHA_CONFIG, &alpha);
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if (ret < 0)
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ERR("ioctl() failed! errno: %d[%s]\n", errno, strerror(errno));
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return ret;
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}
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void vidbuf_dmabuf_begin(struct aic_video_data *vdata, u32 num)
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{
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int i, j;
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struct dma_buf_info fds = {0};
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for (i = 0; i < num; i++) {
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struct video_plane *plane = vdata->binfo[i].planes;
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for (j = 0; j < DVP_PLANE_NUM; j++, plane++) {
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fds.fd = plane->fd;
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if (ioctl(g_mdev.fb_fd, AICFB_ADD_DMABUF, &fds) < 0)
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ERR("Failed to add DMABUF for %d! %d[%s]\n",
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plane->fd, errno, strerror(errno));
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}
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}
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}
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void vidbuf_dmabuf_end(struct aic_video_data *vdata, u32 num)
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{
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int i, j;
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struct dma_buf_info fds = {0};
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for (i = 0; i < num; i++) {
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struct video_plane *plane = vdata->binfo[i].planes;
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for (j = 0; j < DVP_PLANE_NUM; j++, plane++) {
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fds.fd = plane->fd;
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if (ioctl(g_mdev.fb_fd, AICFB_RM_DMABUF, &fds) < 0)
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ERR("Failed to rm DMABUF for %d! err %d[%s]\n",
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plane->fd, errno, strerror(errno));
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}
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}
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}
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int sensor_set_fmt(void)
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{
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int ret = 0;
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struct v4l2_subdev_format f = {0};
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struct v4l2_subdev_frame_interval fr = {0};
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/* Set resolution */
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f.pad = 0;
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f.which = V4L2_SUBDEV_FORMAT_ACTIVE;
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if (ioctl(g_mdev.sensor_fd, VIDIOC_SUBDEV_G_FMT, &f) < 0) {
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ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
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return -1;
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}
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if (f.format.width != g_mdev.sensor_width ||
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f.format.height != g_mdev.sensor_height) {
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printf("Set sensor resolution: %dx%d -> %dx%d\n",
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f.format.width, f.format.height,
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g_mdev.sensor_width, g_mdev.sensor_height);
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f.format.width = g_mdev.sensor_width;
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f.format.height = g_mdev.sensor_height;
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if (ioctl(g_mdev.sensor_fd, VIDIOC_SUBDEV_S_FMT, &f) < 0) {
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ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
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return -1;
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}
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}
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|
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/* Confirm the current resolution */
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if (ioctl(g_mdev.sensor_fd, VIDIOC_SUBDEV_G_FMT, &f) < 0) {
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ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
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return -1;
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}
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/* Set framerate */
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|
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ret = ioctl(g_mdev.sensor_fd, VIDIOC_SUBDEV_G_FRAME_INTERVAL, &fr);
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if ((ret == 0) && (fr.interval.denominator != g_mdev.sensor_fr)) {
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printf("Set sensor framerate: %d -> %d\n",
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fr.interval.denominator, g_mdev.sensor_fr);
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fr.interval.denominator = g_mdev.sensor_fr;
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ret = ioctl(g_mdev.sensor_fd, VIDIOC_SUBDEV_S_FRAME_INTERVAL, &fr);
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if (ret < 0) {
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ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
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return -1;
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}
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|
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/* Confirm the current framerate */
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ioctl(g_mdev.sensor_fd, VIDIOC_SUBDEV_G_FRAME_INTERVAL, &fr);
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}
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g_vdata.src_fmt = f;
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g_vdata.w = g_vdata.src_fmt.format.width;
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g_vdata.h = g_vdata.src_fmt.format.height;
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printf("Sensor format: w %d h %d, code %#x, colorspace %#x, fr %d\n",
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f.format.width, f.format.height, f.format.code,
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f.format.colorspace, fr.interval.denominator);
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return 0;
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|
}
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int dvp_subdev_set_fmt(void)
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|
{
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|
struct v4l2_subdev_format f = g_vdata.src_fmt;
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|
|
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f.pad = 0;
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f.which = V4L2_SUBDEV_FORMAT_ACTIVE;
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if (ioctl(g_mdev.dvp_fd, VIDIOC_SUBDEV_S_FMT, &f) < 0) {
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ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
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return -1;
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|
}
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|
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return 0;
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|
}
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int dvp_cfg(int width, int height, int format)
|
|
{
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|
struct v4l2_format f = {0};
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|
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f.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
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f.fmt.pix_mp.width = g_vdata.src_fmt.format.width;
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|
f.fmt.pix_mp.height = g_vdata.src_fmt.format.height;
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f.fmt.pix_mp.pixelformat = g_vdata.fmt;
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f.fmt.pix_mp.num_planes = DVP_PLANE_NUM;
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if (ioctl(g_mdev.video_fd, VIDIOC_S_FMT, &f) < 0) {
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|
ERR("ioctl() failed! err %d[%s]\n", errno, strerror(errno));
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|
return -1;
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|
}
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|
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return 0;
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|
}
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int dvp_expbuf(int index)
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|
{
|
|
int i;
|
|
struct video_buf_info *binfo = &g_vdata.binfo[index];
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struct v4l2_exportbuffer expbuf = {0};
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|
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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>
|
|
|
|
</div>
|
|
</nav>
|
|
|
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</div>
|
|
</div>
|
|
|
|
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</div>
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<footer class="navbar navbar-default wh_footer">
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<div class=" footer-container mx-auto ">
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<title>footer def</title>
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<style><!--
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.p1 {
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font-family: FangZhengShuSong, Times, serif;
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}
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.p2 {
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font-family: Arial, Helvetica, sans-serif;
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}
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.p3 {
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font-family: "Lucida Console", "Courier New", monospace;
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}
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--></style>
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<div class="webhelp.fragment.footer">
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<p class="p1">Copyright © 2019-2024 广东匠芯创科技有限公司. All rights reserved.</p>
|
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</div><div>
|
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<div class="generation_time">
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|
Update Time: 2025-01-21
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</div>
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</div>
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</div>
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</footer>
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<div id="go2top" class="d-print-none">
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<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> |