FS-7513: refactor main thread a little

src/include/switch_types.h

@@ -1469,7 +1469,8 @@ typedef enum {
 	CF_SLA_INTERCEPT,
 	CF_VIDEO_BREAK,
 	CF_AUDIO_PAUSE,
-	CF_VIDEO_PAUSE,
+	CF_VIDEO_PAUSE_READ,
+	CF_VIDEO_PAUSE_WRITE,
 	CF_BYPASS_MEDIA_AFTER_HOLD,
 	CF_HANGUP_HELD,
 	CF_CONFERENCE_RESET_MEDIA,

src/switch_core_media.c

@@ -10213,7 +10213,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_write_video_frame(switch_cor
 		return SWITCH_STATUS_FALSE;
 	}
 
-	if (switch_channel_test_flag(session->channel, CF_VIDEO_PAUSE)) {
+	if (switch_channel_test_flag(session->channel, CF_VIDEO_PAUSE_WRITE)) {
 		return SWITCH_STATUS_SUCCESS;
 	}
 
@@ -10363,7 +10363,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_read_video_frame(switch_core
 		return SWITCH_STATUS_FALSE;
 	}
 
-	if (switch_channel_test_flag(session->channel, CF_VIDEO_PAUSE)) {
+	if (switch_channel_test_flag(session->channel, CF_VIDEO_PAUSE_READ)) {
 		*frame = &runtime.dummy_cng_frame;
 		switch_yield(20000);
 		return SWITCH_STATUS_SUCCESS;