1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
From 6d218019f1d8294ab17648358a3259082d9b64a4 Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@gmail.com>
Date: Sun, 14 Dec 2025 01:12:06 +0000
Subject: [PATCH 12/13] avutil/hwcontext_v4l2request: Add support for
AFBC_16X16_SPLIT pix fmts
Add support for YUV420_8_AFBC_16X16_SPLIT and YUV420_10_AFBC_16X16_SPLIT
used by Cedrus decoder.
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
libavutil/hwcontext_v4l2request.c | 40 +++++++++++++++++++++++++------
1 file changed, 33 insertions(+), 7 deletions(-)
--- a/libavutil/hwcontext_v4l2request.c
+++ b/libavutil/hwcontext_v4l2request.c
@@ -85,6 +85,28 @@ static const struct {
{ V4L2_PIX_FMT_NV12MT_10_COL128, AV_PIX_FMT_YUV420P10, DRM_FORMAT_P030, DRM_FORMAT_MOD_BROADCOM_SAND128, 10 },
#endif
#endif
+#if defined(V4L2_PIX_FMT_YUV420_8_AFBC_16X16_SPLIT)
+ {
+ .pixelformat = V4L2_PIX_FMT_YUV420_8_AFBC_16X16_SPLIT,
+ .sw_format = AV_PIX_FMT_YUV420P,
+ .drm_format = DRM_FORMAT_YUV420_8BIT,
+ .format_modifier = DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
+ AFBC_FORMAT_MOD_SPARSE |
+ AFBC_FORMAT_MOD_SPLIT),
+ .bit_depth = 8,
+ },
+#endif
+#if defined(V4L2_PIX_FMT_YUV420_10_AFBC_16X16_SPLIT)
+ {
+ .pixelformat = V4L2_PIX_FMT_YUV420_10_AFBC_16X16_SPLIT,
+ .sw_format = AV_PIX_FMT_YUV420P10,
+ .drm_format = DRM_FORMAT_YUV420_10BIT,
+ .format_modifier = DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
+ AFBC_FORMAT_MOD_SPARSE |
+ AFBC_FORMAT_MOD_SPLIT),
+ .bit_depth = 10,
+ },
+#endif
};
static int v4l2request_set_drm_descriptor(AVDRMFrameDescriptor *desc,
@@ -115,7 +137,7 @@ static int v4l2request_set_drm_descripto
}
desc->nb_layers = 1;
- layer->nb_planes = 2;
+ layer->nb_planes = 1;
layer->planes[0].object_index = 0;
layer->planes[0].offset = 0;
@@ -123,12 +145,16 @@ static int v4l2request_set_drm_descripto
format->fmt.pix_mp.plane_fmt[0].bytesperline :
format->fmt.pix.bytesperline;
- layer->planes[1].object_index = 0;
- layer->planes[1].offset = layer->planes[0].pitch *
- (V4L2_TYPE_IS_MULTIPLANAR(format->type) ?
- format->fmt.pix_mp.height :
- format->fmt.pix.height);
- layer->planes[1].pitch = layer->planes[0].pitch;
+ // AFBC formats only use 1 plane, remaining use 2 planes
+ if ((desc->objects[0].format_modifier >> 56) != DRM_FORMAT_MOD_VENDOR_ARM) {
+ layer->nb_planes = 2;
+ layer->planes[1].object_index = 0;
+ layer->planes[1].offset = layer->planes[0].pitch *
+ (V4L2_TYPE_IS_MULTIPLANAR(format->type) ?
+ format->fmt.pix_mp.height :
+ format->fmt.pix.height);
+ layer->planes[1].pitch = layer->planes[0].pitch;
+ }
#if defined(V4L2_PIX_FMT_NV12MT_COL128) && defined(V4L2_PIX_FMT_NV12MT_10_COL128)
// Raspberry Pi formats need special handling
|
