nvbuf_utils: dmabuf_fd -1 mapped entry not found 错误通常与 NVIDIA Jetson 平台的视频处理框架相关,特别是在使用 GStreamer 进行视频捕获和处理时。这个错误可能由多种原因引起,以下是一些可能的原因及相应的解决方案: 可能的原因 资源限制: Jetson Nano 设备的资源有限(如内存和处理器能力),当系统资源紧张时...
int mca_get_sg_from_fd(u32 dmabuf_fd) { struct dma_buf_attachment *attachment; struct sg_table *sgt; struct scatterlist *sg; unsigned int si; struct device *dev; struct dma_buf *dmabuf; int err; dmabuf = dma_buf_get(dmabuf_fd); if (IS_ERR(dmabuf)) { err = PTR_ERR(dmabuf...
In my pipeline, I constantly get a the following errors before the program crashes after maximum of 3 minutes: [gstreamer] gstDecoder -- stopping pipeline, transitioning to GST_STATE_NULL nvbuf_utils: dmabuf_fd 1292 mapped entry NOT found ...
+ mutex_lock(&dmabuf->lock); + if (dmabuf->name) + seq_printf(m, "name:\t%s\n", dmabuf->name); + mutex_unlock(&dmabuf->lock); +} + static const struct file_operations dma_buf_fops = { .release = dma_buf_release, .mmap = dma_buf_mmap_internal, @@ -386,6 +400,7 @...
dmabuf是一种类似于内存映射的机制,可以让不同的设备共享内存,用于实现高效的数据传输。dmabuf_dump的原理主要分为以下几个步骤: 1.打开dmabuf文件 dmabuf_dump首先需要打开要转储的dmabuf文件,可以通过文件系统接口或者ioctl系统调用实现。在打开文件时,需要指定访问权限、文件大小和缓冲区大小等参数。 2.映射DMA...
drm 在prime机制下申请framebuffer并导出dmabuf fd ,gpu在framebuffer上渲染完毕后, drm在内核态如何将…
OBS - Free and open source software for live streaming and screen recording - libobs-opengl: Fixup dmabuf queries on X11 · stream-labs/obs-studio@f610bcf