Set different frame capture interval for H.264 and RFX

and pass them to xorgxrdp.

(cherry picked from commit c55694c51b570d84ad63bfb5dc7bdec75fee57da)

common/xrdp_client_info.h

@@ -255,6 +255,11 @@ struct xrdp_client_info
 
     enum unicode_input_state unicode_input_support;
     enum xrdp_capture_code capture_code;
+
+    /* xorgxrdp: frame capture interval (milliseconds) */
+    int rfx_frame_interval;
+    int h264_frame_interval;
+    int normal_frame_interval;
 };
 
 enum xrdp_encoder_flags
@@ -274,6 +279,6 @@ enum xrdp_encoder_flags
 
 /* yyyymmdd of last incompatible change to xrdp_client_info */
 /* also used for changes to all the xrdp installed headers */
-#define CLIENT_INFO_CURRENT_VERSION 20240805
+#define CLIENT_INFO_CURRENT_VERSION 20241118
 
 #endif

common/xrdp_constants.h

@@ -83,6 +83,11 @@
 #define MCS_SDRQ                       25 /* Send Data Request */
 #define MCS_SDIN                       26 /* Send Data Indication */
 
+/* xorgxrdp: frame capture interval (milliseconds) */
+#define RFX_FRAME_INTERVAL             32
+#define H264_FRAME_INTERVAL            16
+#define NORMAL_FRAME_INTERVAL          40
+
 /******************************************************************************
  *
  * Constants come from other Microsoft products

xrdp/xrdp.ini.in

@@ -249,6 +249,10 @@ password=ask
 port=-1
 code=20
 #keycode_set=evdev
+; Frame capture interval (milliseconds)
+h264_frame_interval=16
+rfx_frame_interval=32
+normal_frame_interval=40
 
 [Xvnc]
 name=Xvnc

xup/xup.c

@@ -191,6 +191,19 @@ lib_mod_connect(struct mod *mod)
     LOG(LOG_LEVEL_INFO, "XKB rules '%s' will be used by the module",
         mod->client_info.xkb_rules);
 
+    if (mod->client_info.h264_frame_interval <= 0)
+    {
+        mod->client_info.h264_frame_interval = H264_FRAME_INTERVAL;
+    }
+    if (mod->client_info.rfx_frame_interval <= 0)
+    {
+        mod->client_info.rfx_frame_interval = RFX_FRAME_INTERVAL;
+    }
+    if (mod->client_info.normal_frame_interval <= 0)
+    {
+        mod->client_info.normal_frame_interval = NORMAL_FRAME_INTERVAL;
+    }
+
     make_stream(s);
     g_sprintf(con_port, "%s", mod->port);
 
@@ -1887,6 +1900,18 @@ lib_mod_set_param(struct mod *mod, const char *name, const char *value)
     {
         g_snprintf(mod->keycode_set, sizeof(mod->keycode_set), "%s", value);
     }
+    else if (g_strcasecmp(name, "h264_frame_interval") == 0)
+    {
+        mod->client_info.h264_frame_interval = g_atoi(value);
+    }
+    else if (g_strcasecmp(name, "rfx_frame_interval") == 0)
+    {
+        mod->client_info.rfx_frame_interval = g_atoi(value);
+    }
+    else if (g_strcasecmp(name, "normal_frame_interval") == 0)
+    {
+        mod->client_info.normal_frame_interval = g_atoi(value);
+    }
     else if (g_strcasecmp(name, "client_info") == 0)
     {
         g_memcpy(&(mod->client_info), value, sizeof(mod->client_info));