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]...
检查设备支持的格式: 在设置格式之前,可以先获取设备支持的像素格式,以确认你尝试设置的V4L2_PIX_FMT_BGR24格式是否被支持。可以通过调用VIDIOC_ENUM_FMT来列举所有支持的格式。 structv4l2_fmtdesc fmt_desc; memset(&fmt_desc,0,sizeof(fmt_desc)); fmt_desc.type=V4L2_BUF_TYPE_VIDEO_CAPTURE; while(ioctl(...
NvBufSurfTransformMultiInputBufCompositeBlendAsync NvBufSurfTransformSetSessionParams NvBufSurfTransformSyncObjDestroy NvBufSurfTransformSyncObjWait ►NvBufSurface Types and Functions ►NvBufUtils API (Deprecated) ►Libargus Camera API ►V4L2 NV Extensions API ►Sample Applications ►Serializer/Deserializer...
Referenced by add_input_streams(), avcodec_default_get_buffer2(), avcodec_open2(), avcodec_string(), avformat_find_stream_info(), bufref_wrap_interface(), copy_block(), copyadd_block(), cuvid_decode_init(), dds_decode(), decode_init(), decompress_texture_thread(), decompress_texture...
New issue Open Description wammachado I have the same problem on ubuntu 20.04. I found a threadRemixVSL/iomemory-vsl4#25about this issue. Still looking for... Korynkai mentioned thison Jan 25, 2021 Korynkai commentedon Jan 25, 2021 ...