Revert "all: Don't set AVClass.item_name to its default value"

Some callers assume that item_name is always set, so this may be
considered an API break.

This reverts commit 0c6203c.

Author: elenril

fftools/ffmpeg_mux_init.c

@@ -2218,6 +2218,7 @@ static int of_parse_group_token(Muxer *mux, const char *token, char *ptr)
     };
     const AVClass class = {
         .class_name = "StreamGroupType",
+        .item_name  = av_default_item_name,
         .option     = opts,
         .version    = LIBAVUTIL_VERSION_INT,
     };

fftools/ffmpeg_opt.c

@@ -335,6 +335,7 @@ static int opt_abort_on(void *optctx, const char *opt, const char *arg)
     };
     static const AVClass class = {
         .class_name = "",
+        .item_name  = av_default_item_name,
         .option     = opts,
         .version    = LIBAVUTIL_VERSION_INT,
     };

fftools/ffplay_renderer.c

@@ -776,6 +776,7 @@ static void destroy(VkRenderer *renderer)
 
 static const AVClass vulkan_renderer_class = {
         .class_name = "Vulkan Renderer",
+        .item_name  = av_default_item_name,
         .version    = LIBAVUTIL_VERSION_INT,
 };
 

fftools/opt_common.c

@@ -1069,6 +1069,7 @@ int opt_cpucount(void *optctx, const char *opt, const char *arg)
     };
     static const AVClass class = {
         .class_name = "cpucount",
+        .item_name  = av_default_item_name,
         .option     = opts,
         .version    = LIBAVUTIL_VERSION_INT,
     };

libavcodec/aacdec_template.c

@@ -3447,6 +3447,7 @@ static const AVOption options[] = {
 
 static const AVClass aac_decoder_class = {
     .class_name = "AAC decoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/aacenc.c

@@ -1407,6 +1407,7 @@ static const AVOption aacenc_options[] = {
 
 static const AVClass aacenc_class = {
     .class_name = "AAC encoder",
+    .item_name  = av_default_item_name,
     .option     = aacenc_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/ac3dec_fixed.c

@@ -165,6 +165,7 @@ static const AVOption options[] = {
 
 static const AVClass ac3_decoder_class = {
     .class_name = "Fixed-Point AC-3 Decoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/ac3dec_float.c

@@ -56,6 +56,7 @@ static const AVOption options[] = {
 
 static const AVClass ac3_eac3_decoder_class = {
     .class_name = "(E-)AC3 decoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/ac3enc.c

@@ -130,6 +130,7 @@ const AVOption ff_ac3_enc_options[] = {
 
 const AVClass ff_ac3enc_class = {
     .class_name = "AC-3 Encoder",
+    .item_name  = av_default_item_name,
     .option     = ff_ac3_enc_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/adpcmenc.c

@@ -989,6 +989,7 @@ static const AVOption options[] = {
 
 static const AVClass adpcm_encoder_class = {
     .class_name = "ADPCM encoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/alac.c

@@ -611,6 +611,7 @@ static const AVOption options[] = {
 
 static const AVClass alac_class = {
     .class_name = "alac",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/alacenc.c

@@ -643,6 +643,7 @@ static const AVOption options[] = {
 
 static const AVClass alacenc_class = {
     .class_name = "alacenc",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/amfenc_av1.c

@@ -465,6 +465,7 @@ static const FFCodecDefault defaults[] = {
 
 static const AVClass av1_amf_class = {
     .class_name = "av1_amf",
+    .item_name = av_default_item_name,
     .option = options,
     .version = LIBAVUTIL_VERSION_INT,
 };

libavcodec/amfenc_h264.c

@@ -518,6 +518,7 @@ static const FFCodecDefault defaults[] = {
 
 static const AVClass h264_amf_class = {
     .class_name = "h264_amf",
+    .item_name = av_default_item_name,
     .option = options,
     .version = LIBAVUTIL_VERSION_INT,
 };

libavcodec/amfenc_hevc.c

@@ -433,6 +433,7 @@ static const FFCodecDefault defaults[] = {
 };
 static const AVClass hevc_amf_class = {
     .class_name = "hevc_amf",
+    .item_name = av_default_item_name,
     .option = options,
     .version = LIBAVUTIL_VERSION_INT,
 };

libavcodec/apedec.c

@@ -1744,6 +1744,7 @@ static const AVOption options[] = {
 
 static const AVClass ape_decoder_class = {
     .class_name = "APE decoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/audiotoolboxenc.c

@@ -610,6 +610,7 @@ static const AVOption options[] = {
 #define FFAT_ENC_CLASS(NAME) \
     static const AVClass ffat_##NAME##_enc_class = { \
         .class_name = "at_" #NAME "_enc", \
+        .item_name  = av_default_item_name, \
         .option     = options, \
         .version    = LIBAVUTIL_VERSION_INT, \
     };

libavcodec/av1_metadata_bsf.c

@@ -211,6 +211,7 @@ static const AVOption av1_metadata_options[] = {
 
 static const AVClass av1_metadata_class = {
     .class_name = "av1_metadata_bsf",
+    .item_name  = av_default_item_name,
     .option     = av1_metadata_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/av1dec.c

@@ -1485,6 +1485,7 @@ static const AVOption av1_options[] = {
 
 static const AVClass av1_class = {
     .class_name = "AV1 decoder",
+    .item_name  = av_default_item_name,
     .option     = av1_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/cbs_av1.c

@@ -1277,6 +1277,7 @@ static const AVOption cbs_av1_options[] = {
 
 static const AVClass cbs_av1_class = {
     .class_name = "cbs_av1",
+    .item_name  = av_default_item_name,
     .option     = cbs_av1_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/ccaption_dec.c

@@ -934,6 +934,7 @@ static const AVOption options[] = {
 
 static const AVClass ccaption_dec_class = {
     .class_name = "Closed caption Decoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/cfhdenc.c

@@ -849,6 +849,7 @@ static const AVOption options[] = {
 
 static const AVClass cfhd_class = {
     .class_name = "cfhd",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/cinepakenc.c

@@ -148,6 +148,7 @@ static const AVOption options[] = {
 
 static const AVClass cinepak_class = {
     .class_name = "cinepak",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/cljrenc.c

@@ -103,6 +103,7 @@ static const AVOption options[] = {
 
 static const AVClass cljr_class = {
     .class_name = "cljr encoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/crystalhd.c

@@ -778,6 +778,7 @@ static int crystalhd_receive_frame(AVCodecContext *avctx, AVFrame *frame)
 #define DEFINE_CRYSTALHD_DECODER(x, X, bsf_name) \
     static const AVClass x##_crystalhd_class = { \
         .class_name = #x "_crystalhd", \
+        .item_name = av_default_item_name, \
         .option = options, \
         .version = LIBAVUTIL_VERSION_INT, \
     }; \

libavcodec/cuviddec.c

@@ -1155,6 +1155,7 @@ static const AVCodecHWConfigInternal *const cuvid_hw_configs[] = {
 #define DEFINE_CUVID_CODEC(x, X, bsf_name) \
     static const AVClass x##_cuvid_class = { \
         .class_name = #x "_cuvid", \
+        .item_name = av_default_item_name, \
         .option = options, \
         .version = LIBAVUTIL_VERSION_INT, \
     }; \

libavcodec/dcadec.c

@@ -410,6 +410,7 @@ static const AVOption dcadec_options[] = {
 
 static const AVClass dcadec_class = {
     .class_name = "DCA decoder",
+    .item_name  = av_default_item_name,
     .option     = dcadec_options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DECODER,

libavcodec/dcaenc.c

@@ -1300,6 +1300,7 @@ static const AVOption options[] = {
 
 static const AVClass dcaenc_class = {
     .class_name = "DCA (DTS Coherent Acoustics)",
+    .item_name = av_default_item_name,
     .option = options,
     .version = LIBAVUTIL_VERSION_INT,
 };

libavcodec/dnxhdenc.c

@@ -73,6 +73,7 @@ static const AVOption options[] = {
 
 static const AVClass dnxhd_class = {
     .class_name = "dnxhd",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/dolby_e.c

@@ -1300,6 +1300,7 @@ static const AVOption options[] = {
 
 static const AVClass dolby_e_decoder_class = {
     .class_name = "Dolby E decoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/dump_extradata_bsf.c

@@ -93,6 +93,7 @@ static const AVOption options[] = {
 
 static const AVClass dump_extradata_class = {
     .class_name = "dump_extradata bsf",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/dv_error_marker_bsf.c

@@ -123,6 +123,7 @@ static const AVOption options[] = {
 
 static const AVClass dv_error_marker_class = {
     .class_name = "dv_error_marker",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/dvbsubdec.c

@@ -1564,6 +1564,7 @@ static const AVOption options[] = {
 };
 static const AVClass dvbsubdec_class = {
     .class_name = "DVB Sub Decoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/dvdsubdec.c

@@ -701,6 +701,7 @@ static const AVOption options[] = {
 };
 static const AVClass dvdsub_class = {
     .class_name = "dvdsubdec",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/dvdsubenc.c

@@ -496,6 +496,7 @@ static const AVOption options[] = {
 
 static const AVClass dvdsubenc_class = {
     .class_name = "VOBSUB subtitle encoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/dvenc.c

@@ -1231,6 +1231,7 @@ static const AVOption dv_options[] = {
 
 static const AVClass dvvideo_encode_class = {
     .class_name = "dvvideo encoder",
+    .item_name  = av_default_item_name,
     .option     = dv_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/eac3enc.c

@@ -35,6 +35,7 @@
 
 static const AVClass eac3enc_class = {
     .class_name = "E-AC-3 Encoder",
+    .item_name  = av_default_item_name,
     .option     = &ff_ac3_enc_options[2], /* First two options are AC-3 only. */
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/evrcdec.c

@@ -924,6 +924,7 @@ static const AVOption options[] = {
 
 static const AVClass evrcdec_class = {
     .class_name = "evrc",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/exr.c

@@ -2345,6 +2345,7 @@ static const AVOption options[] = {
 
 static const AVClass exr_class = {
     .class_name = "EXR",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/exrenc.c

@@ -535,6 +535,7 @@ static const AVOption options[] = {
 
 static const AVClass exr_class = {
     .class_name = "exr",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/extract_extradata_bsf.c

@@ -457,6 +457,7 @@ static const AVOption options[] = {
 
 static const AVClass extract_extradata_class = {
     .class_name = "extract_extradata",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/ffv1enc.c

@@ -1263,6 +1263,7 @@ static const AVOption options[] = {
 
 static const AVClass ffv1_class = {
     .class_name = "ffv1 encoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/fic.c

@@ -479,6 +479,7 @@ static const AVOption options[] = {
 
 static const AVClass fic_decoder_class = {
     .class_name = "FIC decoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/filter_units_bsf.c

@@ -268,6 +268,7 @@ static const AVOption filter_units_options[] = {
 
 static const AVClass filter_units_class = {
     .class_name = "filter_units",
+    .item_name  = av_default_item_name,
     .option     = filter_units_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/fitsdec.c

@@ -316,6 +316,7 @@ static const AVOption fits_options[] = {
 
 static const AVClass fits_decoder_class = {
     .class_name = "FITS decoder",
+    .item_name  = av_default_item_name,
     .option     = fits_options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DECODER,

libavcodec/flacdec.c

@@ -820,6 +820,7 @@ static const AVOption options[] = {
 
 static const AVClass flac_decoder_class = {
     .class_name = "FLAC decoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/flacenc.c

@@ -1743,6 +1743,7 @@ static const AVOption options[] = {
 
 static const AVClass flac_encoder_class = {
     .class_name = "FLAC encoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/frwu.c

@@ -110,6 +110,7 @@ static const AVOption frwu_options[] = {
 
 static const AVClass frwu_class = {
     .class_name = "frwu Decoder",
+    .item_name  = av_default_item_name,
     .option     = frwu_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/g722dec.c

@@ -51,6 +51,7 @@ static const AVOption options[] = {
 
 static const AVClass g722_decoder_class = {
     .class_name = "g722 decoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };

libavcodec/g723_1dec.c

@@ -1105,6 +1105,7 @@ static const AVOption options[] = {
 
 static const AVClass g723_1dec_class = {
     .class_name = "G.723.1 decoder",
+    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };