jordan/camera-streamer
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Simplify v4l2_cap support

Browse Source
This commit is contained in:
Kamil Trzcinski
2022-04-10 10:44:31 +02:00
parent 4d01c86398
commit ca07c62f25
5 changed files with 47 additions and 52 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
device/hw/buffer_list.c
View File

@@ -3,42 +3,50 @@
#include "device/hw/device.h"
#include "device/hw/v4l2.h"
buffer_list_t *buffer_list_open(const char *name, struct device_s *dev, unsigned type, bool do_mmap)
buffer_list_t *buffer_list_open(const char *name, struct device_s *dev, bool do_capture, bool do_mmap)
{
buffer_list_t *buf_list = calloc(1, sizeof(buffer_list_t));
buf_list->device = dev;
buf_list->name = strdup(name);
buf_list->v4l2.type = type;
buf_list->do_capture = do_capture;
switch(type) {
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
buf_list->do_mmap = do_mmap;
buf_list->do_dma = do_mmap;
break;
struct v4l2_capability v4l2_cap;
E_XIOCTL(dev, dev->fd, VIDIOC_QUERYCAP, &v4l2_cap, "Can't query device capabilities");
case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
buf_list->do_mmap = do_mmap;
buf_list->do_dma = do_mmap;
buf_list->v4l2.do_mplanes = true;
break;
if (do_capture) {
if (v4l2_cap.capabilities & V4L2_CAP_VIDEO_CAPTURE) {
buf_list->v4l2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
buf_list->do_dma = do_mmap;
buf_list->do_mmap = do_mmap;
} else if (v4l2_cap.capabilities & (V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_M2M_MPLANE)) {
buf_list->v4l2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
buf_list->v4l2.do_mplanes = true;
buf_list->do_dma = do_mmap;
buf_list->do_mmap = do_mmap;
} else {
E_LOG_ERROR(dev, "Video capture is not supported by device: %08x", v4l2_cap.capabilities);
}
} else {
if (v4l2_cap.capabilities & V4L2_CAP_VIDEO_OUTPUT) {
buf_list->v4l2.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
buf_list->do_mmap = do_mmap;
buf_list->do_dma = do_mmap;
} else if (v4l2_cap.capabilities & (V4L2_CAP_VIDEO_OUTPUT_MPLANE | V4L2_CAP_VIDEO_M2M_MPLANE)) {
buf_list->v4l2.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
buf_list->v4l2.do_mplanes = true;
buf_list->do_mmap = do_mmap;
buf_list->do_dma = do_mmap;
} else {
E_LOG_ERROR(dev, "Video output is not supported by device: %08x", v4l2_cap.capabilities);
}
}
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
buf_list->do_dma = do_mmap;
buf_list->do_mmap = do_mmap;
buf_list->do_capture = true;
break;
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
buf_list->do_dma = do_mmap;
buf_list->do_mmap = do_mmap;
buf_list->v4l2.do_mplanes = true;
buf_list->do_capture = true;
break;
default:
E_LOG_PERROR(buf_list, "Unknown type=%d", type);
goto error;
// Add suffix for debug purposes
if (v4l2_cap.capabilities & (V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_OUTPUT_MPLANE | V4L2_CAP_VIDEO_M2M_MPLANE)) {
#define MPLANE_SUFFIX ":mplane"
buf_list->name = realloc(buf_list->name, strlen(buf_list->name) + strlen(MPLANE_SUFFIX) + 1);
strcat(buf_list->name, MPLANE_SUFFIX);
}
return buf_list;