[Mesa-dev] [PATCH 04/22] radeon/vcn: add VP9 dpb buffer size

[Leo Liu]

The current FW has restricted the size to the worse case,
and the new dynamic dpb buffer support is on the way from
firmware side, we will change accordingly.

Signed-off-by: Leo Liu <leo.liu at amd.com>
---
 src/gallium/drivers/radeon/radeon_vcn_dec.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/gallium/drivers/radeon/radeon_vcn_dec.c b/src/gallium/drivers/radeon/radeon_vcn_dec.c
index ba65452f69..b7cb8a3650 100644
--- a/src/gallium/drivers/radeon/radeon_vcn_dec.c
+++ b/src/gallium/drivers/radeon/radeon_vcn_dec.c
@@ -1019,6 +1019,12 @@ static unsigned calc_dpb_size(struct radeon_decoder *dec)
 		dpb_size = MAX2(dpb_size, 30 * 1024 * 1024);
 		break;
 
+	case PIPE_VIDEO_FORMAT_VP9:
+		max_references = MAX2(max_references, 9);
+
+		dpb_size = (4096 * 3000 * 3 / 2) * max_references;
+		break;
+
 	default:
 		// something is missing here
 		assert(0);
-- 
2.14.1