gstreamer: kms: Gets environment variables "SF_OMX_SLICE" to support special cases

Signed-off-by: Som Qin <som.qin@starfivetech.com>
2023-10-18 10:49:07 +08:00
parent 5ac204f16b
commit 51cb20e8bf
1 changed files with 60 additions and 0 deletions
@@ -0,0 +1,60 @@
+From 23c80a346def541e7a750efa22be1da64777067e Mon Sep 17 00:00:00 2001
+From: Som Qin <som.qin@starfivetech.com>
+Date: Wed, 18 Oct 2023 09:55:16 +0800
+Subject: [PATCH] Support direct display using of wave511 omx decoder
+
+Gets environment variables "SF_OMX_SLICE"  to support special cases
+
+Signed-off-by: Som Qin <som.qin@starfivetech.com>
+---
+ sys/kms/gstkmsallocator.c | 27 ++++++++++++++++++++++++++-
+ 1 file changed, 26 insertions(+), 1 deletion(-)
+
+diff --git a/sys/kms/gstkmsallocator.c b/sys/kms/gstkmsallocator.c
+index cb2f6bd..493cd92 100644
+--- a/sys/kms/gstkmsallocator.c
+++ b/sys/kms/gstkmsallocator.c
+@@ -189,7 +189,18 @@ gst_kms_allocator_memory_create (GstKMSAllocator * allocator,
+   fmt = gst_drm_format_from_video (GST_VIDEO_INFO_FORMAT (vinfo));
+   arg.bpp = gst_drm_bpp_from_drm (fmt);
+   arg.width = GST_VIDEO_INFO_WIDTH (vinfo);
+-  h = GST_VIDEO_INFO_HEIGHT (vinfo);
+  char* env = NULL;
+  env = getenv("SF_OMX_SLICE");
+  if (env) {
+    gint slice, i;
+    slice = atoi(env);
+    if (slice > 0 && slice > vinfo->height) {
+      h = slice;
+    } else {
+      h = GST_VIDEO_INFO_HEIGHT (vinfo);
+    }
+  } else
+    h = GST_VIDEO_INFO_HEIGHT (vinfo);
+   arg.height = gst_drm_height_from_drm (fmt, h);
+ 
+   ret = drmIoctl (allocator->priv->fd, DRM_IOCTL_MODE_CREATE_DUMB, &arg);
+@@ -498,6 +509,20 @@ gst_kms_allocator_bo_alloc (GstAllocator * allocator, GstVideoInfo * vinfo)
+ 
+   mem = GST_MEMORY_CAST (kmsmem);
+ 
+  char* env = NULL;
+  env = getenv("SF_OMX_SLICE");
+  if (env) {
+    gint slice, i;
+    slice = atoi(env);
+    if (slice > 0 && slice > vinfo->height) {
+	  GST_DEBUG_OBJECT (alloc, "slice %d is large than height %d, recalculate size/offset",
+	    slice, vinfo->height );
+      vinfo->size = vinfo->size / vinfo->height * slice;
+      for (i = 0; i < GST_VIDEO_MAX_PLANES; i++)
+        vinfo->offset[i] = vinfo->offset[i] / vinfo->height * slice;
+    }
+  }
+
+   if (!gst_kms_allocator_memory_create (alloc, kmsmem, vinfo)) {
+     g_slice_free (GstKMSMemory, kmsmem);
+     return NULL;
+-- 
+2.25.1
+