[FFmpeg-devel] [PATCH 3/7] libavutil/hwcontext_vulkan: Add one_memory flag to make vulkan compatible with vaapi device.

[Wenbin Chen]

Vaapi can import external surface, but all the planes of the external
frames should be in the same drm object. A new flag is introduced and
vulkan can choose to allocate planes in one memory according this flag.
This flag will be enabled when the vulkan device is derived from vaapi
device, so that this change will not affect current vulkan behaviour.

Signed-off-by: Wenbin Chen <wenbin.chen at intel.com>
---
 libavutil/hwcontext_vulkan.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/libavutil/hwcontext_vulkan.c b/libavutil/hwcontext_vulkan.c
index 6041580117..ccf3e58f49 100644
--- a/libavutil/hwcontext_vulkan.c
+++ b/libavutil/hwcontext_vulkan.c
@@ -100,6 +100,9 @@ typedef struct VulkanDevicePriv {
     /* Settings */
     int use_linear_images;
 
+    /* map all planes to one memory */
+    int use_one_memory;
+
     /* Nvidia */
     int dev_is_nvidia;
 } VulkanDevicePriv;
@@ -1245,6 +1248,11 @@ static int vulkan_device_create_internal(AVHWDeviceContext *ctx,
     if (opt_d)
         p->use_linear_images = strtol(opt_d->value, NULL, 10);
 
+    opt_d = av_dict_get(opts, "one_memory", NULL, 0);
+    if (opt_d)
+        p->use_one_memory = strtol(opt_d->value, NULL, 10);
+
+
     hwctx->enabled_dev_extensions = dev_info.ppEnabledExtensionNames;
     hwctx->nb_enabled_dev_extensions = dev_info.enabledExtensionCount;
 
@@ -1365,8 +1373,10 @@ static int vulkan_device_derive(AVHWDeviceContext *ctx,
             return AVERROR_EXTERNAL;
         }
 
-        if (strstr(vendor, "Intel"))
+        if (strstr(vendor, "Intel")) {
+            av_dict_set_int(&opts, "one_memory", 1, 0);
             dev_select.vendor_id = 0x8086;
+        }
         if (strstr(vendor, "AMD"))
             dev_select.vendor_id = 0x1002;
 
-- 
2.25.1