multimedia/libv4l: Add upstream patch to make the v4l2-ctl utility more useful.

Submitted by:	Trenton Schulz <trenton@norwegianrockcat.com>
Approved by:	pi (implicit)
This commit is contained in:
Hans Petter Selasky 2021-04-21 17:49:00 +02:00
parent 55f69b2ce5
commit 3a28080660
2 changed files with 47 additions and 0 deletions

View file

@ -3,6 +3,7 @@
PORTNAME?= libv4l
PORTVERSION= 1.20.0
PORTREVISION= 1
DISTVERSIONPREFIX= v4l-utils-
CATEGORIES= multimedia

View file

@ -0,0 +1,46 @@
--- utils/common/media-info.cpp.orig 2020-05-21 11:22:05 UTC
+++ utils/common/media-info.cpp
@@ -24,6 +24,10 @@
#include <iostream>
#include <fstream>
#include <media-info.h>
+#ifndef __linux__
+#include <linux/videodev2.h>
+#include <fcntl.h>
+#endif
static std::string num2s(unsigned num, bool is_hex = true)
{
@@ -61,7 +65,7 @@ media_type mi_media_detect_type(const char *device)
if (stat(device, &sb) == -1)
return MEDIA_TYPE_CANT_STAT;
-
+#ifdef __linux__
std::string uevent_path("/sys/dev/char/");
uevent_path += num2s(major(sb.st_rdev), false) + ":" +
@@ -97,6 +101,23 @@ media_type mi_media_detect_type(const char *device)
}
uevent_file.close();
+#else // Not Linux
+ int fd = open(device, O_RDONLY);
+ if (fd >= 0) {
+ struct v4l2_capability caps;
+ int error = ioctl(fd, VIDIOC_QUERYCAP, &caps);
+ close(fd);
+ if (error == 0) {
+ if (caps.device_caps & V4L2_CAP_VIDEO_CAPTURE) {
+ return MEDIA_TYPE_VIDEO;
+ } else if (caps.device_caps & V4L2_CAP_VBI_CAPTURE) {
+ return MEDIA_TYPE_VBI;
+ } else if (caps.device_caps & V4L2_CAP_RADIO) {
+ return MEDIA_TYPE_RADIO;
+ }
+ }
+ }
+#endif
return MEDIA_TYPE_UNKNOWN;
}