diff --git a/libavcodec/vulkan/ffv1_dec_setup.comp b/libavcodec/vulkan/ffv1_dec_setup.comp
index 5da09df21c..fd297cb70a 100644
--- a/libavcodec/vulkan/ffv1_dec_setup.comp
+++ b/libavcodec/vulkan/ffv1_dec_setup.comp
@@ -114,8 +114,8 @@ void main(void)
 {
     const uint slice_idx = gl_WorkGroupID.y*gl_NumWorkGroups.x + gl_WorkGroupID.x;
 
-    u8buf bs = u8buf(slice_data + slice_offsets[2*slice_idx + 0]);
-    uint32_t slice_size = slice_offsets[2*slice_idx + 1];
+    u8buf bs = u8buf(slice_data + slice_offsets[slice_idx].x);
+    uint32_t slice_size = slice_offsets[slice_idx].y;
 
     rac_init_dec(slice_ctx[slice_idx].c,
                  bs, slice_size);
diff --git a/libavcodec/vulkan_ffv1.c b/libavcodec/vulkan_ffv1.c
index b02bc71683..1ed9d7dd6c 100644
--- a/libavcodec/vulkan_ffv1.c
+++ b/libavcodec/vulkan_ffv1.c
@@ -697,7 +697,7 @@ static int init_setup_shader(FFV1Context *f, FFVulkanContext *s,
             .type        = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
             .stages      = VK_SHADER_STAGE_COMPUTE_BIT,
             .mem_quali   = "readonly",
-            .buf_content = "uint32_t slice_offsets",
+            .buf_content = "u32vec2 slice_offsets",
             .buf_elems   = 2*f->max_slice_count,
         },
         {