FS-11394: [mod_av] Clean up defaults cos they are still wrong

conf/vanilla/autoload_configs/av.conf.xml

@@ -9,7 +9,7 @@
     <!-- <param name="key-frame-min-freq" value="250"/> -->
 
     <!-- integer of cpus, or 'auto', or 'cpu/<divisor>/<max> -->
-    <param name="dec-threads" value="cpu/2/4"/>
+    <param name="dec-threads" value="1"/>
     <param name="enc-threads" value="cpu/2/4"/>
     <param name="h263-profile" value="H263"/>
     <param name="h263+-profile" value="H263+"/>

src/mod/applications/mod_av/autoload_configs/av.conf.xml

@@ -9,7 +9,7 @@
     <!-- <param name="key-frame-min-freq" value="250"/> -->
 
     <!-- integer of cpus, or 'auto', or 'cpu/<divisor>/<max> -->
-    <param name="dec-threads" value="cpu/2/4"/>
+    <param name="dec-threads" value="1"/>
     <param name="enc-threads" value="cpu/2/4"/>
     <param name="h263-profile" value="H263"/>
     <param name="h263+-profile" value="H263+"/>

src/mod/applications/mod_av/avcodec.c

@@ -1095,8 +1095,8 @@ static void set_h264_private_data(h264_codec_context_t *context, avcodec_profile
 	av_opt_set(context->encoder_ctx->priv_data, "preset", "veryfast", 0);
 	av_opt_set(context->encoder_ctx->priv_data, "intra-refresh", "1", 0);
 	av_opt_set(context->encoder_ctx->priv_data, "tune", "animation+zerolatency", 0);
-	av_opt_set(context->encoder_ctx->priv_data, "sc_threshold", "40", 0);
-	av_opt_set(context->encoder_ctx->priv_data, "crf", "18", 0);
+	//av_opt_set(context->encoder_ctx->priv_data, "sc_threshold", "40", 0);
+	//av_opt_set(context->encoder_ctx->priv_data, "crf", "18", 0);
 
 	if (profile->options) {
 		switch_event_header_t *hp;
@@ -1993,6 +1993,9 @@ static void load_config()
 
 					val = atoi(value);
 
+					ctx->profile = FF_PROFILE_H264_BASELINE;
+					ctx->level = 31;
+					
 					if (!strcmp(name, "dec-threads")) {
 						aprofile->decoder_thread_count = switch_parse_cpu_string(value);
 					} else if (!strcmp(name, "enc-threads")) {