From bf1b82deb438e386808e1cde3ee6f3da0a304402 Mon Sep 17 00:00:00 2001
|
From: Jeffy Chen <jeffy.chen@rock-chips.com>
|
Date: Thu, 12 May 2022 15:54:25 +0800
|
Subject: [PATCH 6/6] libv4l: Disallow conversion by default
|
|
The conversion is slow, let's disable it by default.
|
|
Set env "V4L2_DISABLE_CONVERSION" to enable it.
|
|
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
|
---
|
lib/libv4l2/libv4l2.c | 3 +++
|
1 file changed, 3 insertions(+)
|
|
diff --git a/lib/libv4l2/libv4l2.c b/lib/libv4l2/libv4l2.c
|
index 11d2ae1..d9edec1 100644
|
--- a/lib/libv4l2/libv4l2.c
|
+++ b/lib/libv4l2/libv4l2.c
|
@@ -789,6 +789,9 @@ int v4l2_fd_open(int fd, int v4l2_flags)
|
if (dev_ops->ioctl(dev_ops_priv, fd, VIDIOC_G_PARM, &parm))
|
parm.type = 0;
|
|
+ if (!getenv("LIBV4L2_ALLOW_CONVERSION"))
|
+ v4l2_flags |= V4L2_DISABLE_CONVERSION;
|
+
|
/* init libv4lconvert */
|
if (!(v4l2_flags & V4L2_DISABLE_CONVERSION)) {
|
convert = v4lconvert_create_with_dev_ops(fd, dev_ops_priv, dev_ops);
|
--
|
2.20.1
|
