struct v4l2_buffer { __u32 index; //缓存编号 enum v4l2_buf_type type; //视频捕获模式 __u32 bytesused; //缓存已使用空间大小 __u32 flags; //缓存当前状态 /* flags 为缓存当前状态(常见值有 V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE,分别代表当前缓存已经 映射、...
char name[V4L2_DEVICE_NAME_SIZE]; void (*notify)(struct v4l2_subdev *sd, unsigned int notification, void *arg); struct v4l2_ctrl_handler *ctrl_handler; struct v4l2_prio_state prio; struct mutex ioctl_lock; struct kref ref; void (*release)(struct v4l2_device *v4l2_dev); }; [cpp]...
struct v4l2_buffer 2015-05-16 15:39 −... 居老师的粉丝 0 8008 V4L2 学习三---> 常用命令 2014-01-17 13:44 −V4L2(Video For Linux Two) 一、打开视频设备 打开视频设备非常简单,在V4L2中,视频设备被看做一个文件。使用open函数打开这个设备: 1. 用非阻塞模式打开摄像头设备int cameraFd;camera...
__u8 v4l2_ctrl_h264_sps::bit_depth_chroma_minus8 Definition at line1313of filev4l2-controls.h. __u8 v4l2_ctrl_h264_sps::bit_depth_luma_minus8 Definition at line1312of filev4l2-controls.h. __u8 v4l2_ctrl_h264_sps::chroma_format_idc ...
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To set the parameters for a *Video Output Overlay*, applications must initialize the ``flags`` field of a struct -struct :c:type:`v4l2_framebuffer`. Since the framebuffer is +:c:type:`v4l2_framebuffer`. Since the framebuffer is implemented on the TV card all other parameters are determ...
(), v4l2_receive_frame(), v4l2_receive_packet(), v4l2_send_frame(), v4l2_try_start(), vaapi_encode_alloc_output_buffer(), vaapi_encode_clear_old(), vaapi_encode_config_attributes(), vaapi_encode_create_recon_frames(), vaapi_encode_free_output_buffer(), vaapi_encode_get_next(), ...