lavfi: use av_default_item_name() as filter private context logger

avfilter_default_filter_name() is supposed to access an AVFilterContext
struct, if used with a private struct it will cause a crash since it will
access fields which are non defined in the private struct.

libavfilter/af_aformat.c

@@ -55,7 +55,7 @@ static const AVOption options[] = {
 
 static const AVClass aformat_class = {
     .class_name = "aformat filter",
-    .item_name  = avfilter_default_filter_name,
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category = AV_CLASS_CATEGORY_FILTER,

libavfilter/af_amix.c

@@ -186,7 +186,7 @@ static const AVOption options[] = {
 
 static const AVClass amix_class = {
     .class_name = "amix filter",
-    .item_name  = avfilter_default_filter_name,
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavfilter/af_asyncts.c

@@ -50,7 +50,7 @@ static const AVOption options[] = {
 
 static const AVClass async_class = {
     .class_name = "asyncts filter",
-    .item_name  = avfilter_default_filter_name,
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavfilter/af_silencedetect.c

@@ -50,7 +50,7 @@ static const AVOption silencedetect_options[] = {
 
 static const AVClass silencedetect_class = {
     .class_name = "SilenceDetectContext",
-    .item_name  = avfilter_default_filter_name,
+    .item_name  = av_default_item_name,
     .option     = silencedetect_options,
 };
 

libavfilter/asrc_aevalsrc.c

@@ -80,7 +80,7 @@ static const AVOption eval_options[]= {
 
 static const AVClass eval_class = {
     "AEvalSrcContext",
-    avfilter_default_filter_name,
+    av_default_item_name,
     eval_options
 };
 

libavfilter/asrc_anullsrc.c

@@ -55,7 +55,7 @@ static const AVOption anullsrc_options[]= {
 
 static const AVClass anullsrc_class = {
     "ANullSrcContext",
-    avfilter_default_filter_name,
+    av_default_item_name,
     anullsrc_options
 };
 

libavfilter/avfiltergraph.c

@@ -36,7 +36,7 @@
 
 static const AVClass filtergraph_class = {
     .class_name = "AVFilterGraph",
-    .item_name  = avfilter_default_filter_name,
+    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 

libavfilter/buffersrc.c

@@ -255,7 +255,7 @@ static const AVOption audio_options[] = {
 
 static const AVClass abuffer_class = {
     .class_name = "abuffer source",
-    .item_name  = avfilter_default_filter_name,
+    .item_name  = av_default_item_name,
     .option     = audio_options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_FILTER,

libavfilter/vf_ass.c

@@ -56,7 +56,7 @@ static const AVOption ass_options[] = {
 
 static const AVClass ass_class = {
     "AssContext",
-    avfilter_default_filter_name,
+    av_default_item_name,
     ass_options
 };
 

libavfilter/vf_blackdetect.c

@@ -59,7 +59,7 @@ static const AVOption blackdetect_options[] = {
 
 static const AVClass blackdetect_class = {
     .class_name = "BlackDetectContext",
-    .item_name  = avfilter_default_filter_name,
+    .item_name  = av_default_item_name,
     .option     = blackdetect_options,
 };
 

libavfilter/vf_delogo.c

@@ -151,7 +151,7 @@ static const AVOption delogo_options[]= {
 
 static const AVClass delogo_class = {
     .class_name = "DelogoContext",
-    .item_name  = avfilter_default_filter_name,
+    .item_name  = av_default_item_name,
     .option     = delogo_options,
 };
 

libavfilter/vf_drawtext.c

@@ -207,7 +207,7 @@ static const AVOption drawtext_options[]= {
 
 static const AVClass drawtext_class = {
     "DrawTextContext",
-    avfilter_default_filter_name,
+    av_default_item_name,
     drawtext_options
 };
 

libavfilter/vf_fade.c

@@ -71,7 +71,7 @@ static const AVOption fade_options[] = {
 
 static const AVClass fade_class = {
     "FadeContext",
-    avfilter_default_filter_name,
+    av_default_item_name,
     fade_options
 };
 

libavfilter/vf_fps.c

@@ -60,7 +60,7 @@ static const AVOption options[] = {
 
 static const AVClass class = {
     .class_name = "FPS filter",
-    .item_name  = avfilter_default_filter_name,
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavfilter/vf_lut.c

@@ -91,7 +91,7 @@ static const AVOption lut_options[] = {
 
 static const AVClass lut_class = {
     "LutContext",
-    avfilter_default_filter_name,
+    av_default_item_name,
     lut_options
 };
 

libavfilter/vf_overlay.c

@@ -103,7 +103,7 @@ static const AVOption overlay_options[] = {
 
 static const AVClass overlay_class = {
     "OverlayContext",
-    avfilter_default_filter_name,
+    av_default_item_name,
     overlay_options
 };
 

libavfilter/vsrc_cellauto.c

@@ -78,7 +78,7 @@ static const AVOption cellauto_options[] = {
 
 static const AVClass cellauto_class = {
     "CellAutoContext",
-    avfilter_default_filter_name,
+    av_default_item_name,
     cellauto_options
 };
 

libavfilter/vsrc_life.c

@@ -97,7 +97,7 @@ static const AVOption life_options[] = {
 
 static const AVClass life_class = {
     "LifeContext",
-    avfilter_default_filter_name,
+    av_default_item_name,
     life_options
 };
 

libavfilter/vsrc_mandelbrot.c

@@ -105,7 +105,7 @@ static const AVOption mandelbrot_options[] = {
 
 static const AVClass mandelbrot_class = {
     "MBContext",
-    avfilter_default_filter_name,
+    av_default_item_name,
     mandelbrot_options
 };
 

libavfilter/vsrc_mptestsrc.c

@@ -84,7 +84,7 @@ static const AVOption mptestsrc_options[]= {
 
 static const AVClass mptestsrc_class = {
     "MPTestContext",
-    avfilter_default_filter_name,
+    av_default_item_name,
     mptestsrc_options
 };