[libcamera-devel] [PATCH 13/14] py: cam_kms: support multiplanar formats

Tomi Valkeinen tomi.valkeinen at ideasonboard.com
Mon May 16 16:10:21 CEST 2022


Support multiplanar formats in the kms renderer. Tested with RPi and
NV12.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ideasonboard.com>
---
 src/py/cam/cam_kms.py | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/py/cam/cam_kms.py b/src/py/cam/cam_kms.py
index da3dd4e0..90aac5f6 100644
--- a/src/py/cam/cam_kms.py
+++ b/src/py/cam/cam_kms.py
@@ -127,10 +127,16 @@ class KMSRenderer:
                 for fb in ctx['allocator'].buffers(stream):
                     w = cfg.size.width
                     h = cfg.size.height
-                    stride = cfg.stride
-                    fd = fb.fd(0)
+                    fds = []
+                    strides = []
+                    offsets = []
+                    for i in range(fb.num_planes):
+                        fds.append(fb.fd(i))
+                        strides.append(cfg.stride)
+                        offsets.append(fb.offset(i))
+
                     drmfb = pykms.DmabufFramebuffer(self.card, w, h, fmt,
-                                                    [fd], [stride], [0])
+                                                    fds, strides, offsets)
                     self.cam_2_drm[fb] = drmfb
 
                 idx += 1
-- 
2.34.1



More information about the libcamera-devel mailing list