FS-8719: [mod_conference] fix seg when building without video support, but…

FS-8719: [mod_conference] fix seg when building without video support, but specifying video_mute_png variable for a conference member

src/mod/applications/mod_conference/conference_member.c

@@ -682,7 +682,7 @@ switch_status_t conference_member_add(conference_obj_t *conference, conference_m
 	call_list_t *call_list = NULL;
 	switch_channel_t *channel;
 	const char *controls = NULL, *position = NULL, *var = NULL;
-
+	switch_bool_t has_video = switch_core_has_video();
 
 	switch_assert(conference != NULL);
 	switch_assert(member != NULL);
@@ -760,29 +760,31 @@ switch_status_t conference_member_add(conference_obj_t *conference, conference_m
 
 		conference_video_reset_member_codec_index(member);
 
-		if ((var = switch_channel_get_variable_dup(member->channel, "video_mute_png", SWITCH_FALSE, -1))) {
-			member->video_mute_png = switch_core_strdup(member->pool, var);
-			member->video_mute_img = switch_img_read_png(member->video_mute_png, SWITCH_IMG_FMT_I420);
-		}
+		if (has_video) {
+			if ((var = switch_channel_get_variable_dup(member->channel, "video_mute_png", SWITCH_FALSE, -1))) {
+				member->video_mute_png = switch_core_strdup(member->pool, var);
+				member->video_mute_img = switch_img_read_png(member->video_mute_png, SWITCH_IMG_FMT_I420);
+			}
 
-		if ((var = switch_channel_get_variable_dup(member->channel, "video_reservation_id", SWITCH_FALSE, -1))) {
-			member->video_reservation_id = switch_core_strdup(member->pool, var);
-		}
+			if ((var = switch_channel_get_variable_dup(member->channel, "video_reservation_id", SWITCH_FALSE, -1))) {
+				member->video_reservation_id = switch_core_strdup(member->pool, var);
+			}
 
-		if ((var = switch_channel_get_variable(channel, "video_use_dedicated_encoder")) && switch_true(var)) {
-			conference_utils_member_set_flag_locked(member, MFLAG_NO_MINIMIZE_ENCODING);
-		}
+			if ((var = switch_channel_get_variable(channel, "video_use_dedicated_encoder")) && switch_true(var)) {
+				conference_utils_member_set_flag_locked(member, MFLAG_NO_MINIMIZE_ENCODING);
+			}
 
-		if ((var = switch_channel_get_variable(member->channel, "rtp_video_max_bandwidth_in"))) {
-			member->max_bw_in = switch_parse_bandwidth_string(var);
-		}
+			if ((var = switch_channel_get_variable(member->channel, "rtp_video_max_bandwidth_in"))) {
+				member->max_bw_in = switch_parse_bandwidth_string(var);
+			}
 		
-		if ((var = switch_channel_get_variable(member->channel, "rtp_video_max_bandwidth_out"))) {
-			member->max_bw_out = switch_parse_bandwidth_string(var);;
+			if ((var = switch_channel_get_variable(member->channel, "rtp_video_max_bandwidth_out"))) {
+				member->max_bw_out = switch_parse_bandwidth_string(var);;
 
-			if (member->max_bw_out < conference->video_codec_settings.video.bandwidth) {
-				conference_utils_member_set_flag_locked(member, MFLAG_NO_MINIMIZE_ENCODING);
-				switch_core_media_set_outgoing_bitrate(member->session, SWITCH_MEDIA_TYPE_VIDEO, member->max_bw_out);
+				if (member->max_bw_out < conference->video_codec_settings.video.bandwidth) {
+					conference_utils_member_set_flag_locked(member, MFLAG_NO_MINIMIZE_ENCODING);
+					switch_core_media_set_outgoing_bitrate(member->session, SWITCH_MEDIA_TYPE_VIDEO, member->max_bw_out);
+				}
 			}
 		}