Add comments for control VP9E_SET_TUNE_CONTENT

Change-Id: If1fb5d9f1545cb9753eeda22e699b1ab778452b4

diff --git a/vpx/vp8cx.h b/vpx/vp8cx.h
index 32de177e33ea21ca60b0d8cd5e2de82ee12da107..711f6e15f2ff124d66bcce5472807c669987ce8f 100644 (file)
--- a/vpx/vp8cx.h
+++ b/vpx/vp8cx.h
@@ -337,6 +337,12 @@ enum vp8e_enc_control_id {
    *                     temporal layer.
    */
   VP9E_SET_SVC_LAYER_ID,
+
+  /*!\brief control function to set content type.
+   * \note Valid parameter range:
+   *              VP9E_CONTENT_DEFAULT = Regular video content (Default)
+   *              VP9E_CONTENT_SCREEN  = Screen capture content
+   */
   VP9E_SET_TUNE_CONTENT,
   VP9E_GET_SVC_LAYER_ID,
   VP9E_REGISTER_CX_CALLBACK,