L2E: Add control type for the external rate control API

Two control types are defined: QP and GOP control.
Now the API only supports the QP model.

Change-Id: Ib3a712964b9d2282c93993ee56e0558e4795fb46

1 files changed, 13 insertions, 1 deletions

diff --git a/vpx/vpx_ext_ratectrl.h b/vpx/vpx_ext_ratectrl.h
index a193e5595..5b426b6cf 100644
--- a/vpx/vpx_ext_ratectrl.h
+++ b/vpx/vpx_ext_ratectrl.h
@@ -25,7 +25,15 @@ extern "C" {
  * types, removing or reassigning enums, adding/removing/rearranging
  * fields to structures.
  */
-#define VPX_EXT_RATECTRL_ABI_VERSION (1)
+#define VPX_EXT_RATECTRL_ABI_VERSION (2)
+
+/*!\brief The control type of the inference API.
+ * In VPX_RC_QP mode, the external rate control model determines the
+ * quantization parameter (QP) for each frame.
+ * In VPX_RC_GOP mode, the external rate control model determines the
+ * group of picture (GOP) of the video sequence.
+ */
+typedef enum vpx_rc_type { VPX_RC_QP = 0, VPX_RC_GOP = 1 } vpx_rc_type_t;
 
 /*!\brief Abstract rate control model handler
  *
@@ -328,6 +336,10 @@ typedef vpx_rc_status_t (*vpx_rc_delete_model_cb_fn_t)(
  */
 typedef struct vpx_rc_funcs {
   /*!
+   * The rate control type of this API.
+   */
+  vpx_rc_type_t rc_type;
+  /*!
    * Create an external rate control model.
    */
   vpx_rc_create_model_cb_fn_t create_model;