Commit c16601bb authored by Alex Beregszaszi's avatar Alex Beregszaszi
Browse files

print a hint when trying V4L2 on V4L device

Originally committed as revision 5065 to svn://
parent 6df5f6ae
......@@ -122,6 +122,13 @@ static int device_open(const char *devname, uint32_t *capabilities)
res = ioctl(fd, VIDIOC_QUERYCAP, &cap);
// ENOIOCTLCMD definition only availble on __KERNEL__
if (res < 0 && errno == 515)
av_log(NULL, AV_LOG_ERROR, "QUERYCAP not implemented, probably V4L device but not supporting V4L2\n");
return -1;
if (res < 0) {
av_log(NULL, AV_LOG_ERROR, "ioctl(VIDIOC_QUERYCAP): %s\n",
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