diff --git a/libavcodec/vorbis_parser.c b/libavcodec/vorbis_parser.c
index 1e2cab3927..d75fb962d4 100644
--- a/libavcodec/vorbis_parser.c
+++ b/libavcodec/vorbis_parser.c
@@ -25,34 +25,42 @@
  * Determines the duration for each packet.
  */
 
+#include "libavutil/log.h"
+
 #include "get_bits.h"
 #include "parser.h"
 #include "xiph.h"
 #include "vorbis_parser.h"
 
-static int parse_id_header(AVCodecContext *avctx, VorbisParseContext *s,
+static const AVClass vorbis_parser_class = {
+    .class_name = "Vorbis parser",
+    .item_name  = av_default_item_name,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+static int parse_id_header(VorbisParseContext *s,
                            const uint8_t *buf, int buf_size)
 {
     /* Id header should be 30 bytes */
     if (buf_size < 30) {
-        av_log(avctx, AV_LOG_ERROR, "Id header is too short\n");
+        av_log(s, AV_LOG_ERROR, "Id header is too short\n");
         return AVERROR_INVALIDDATA;
     }
 
     /* make sure this is the Id header */
     if (buf[0] != 1) {
-        av_log(avctx, AV_LOG_ERROR, "Wrong packet type in Id header\n");
+        av_log(s, AV_LOG_ERROR, "Wrong packet type in Id header\n");
         return AVERROR_INVALIDDATA;
     }
 
     /* check for header signature */
     if (memcmp(&buf[1], "vorbis", 6)) {
-        av_log(avctx, AV_LOG_ERROR, "Invalid packet signature in Id header\n");
+        av_log(s, AV_LOG_ERROR, "Invalid packet signature in Id header\n");
         return AVERROR_INVALIDDATA;
     }
 
     if (!(buf[29] & 0x1)) {
-        av_log(avctx, AV_LOG_ERROR, "Invalid framing bit in Id header\n");
+        av_log(s, AV_LOG_ERROR, "Invalid framing bit in Id header\n");
         return AVERROR_INVALIDDATA;
     }
 
@@ -62,7 +70,7 @@ static int parse_id_header(AVCodecContext *avctx, VorbisParseContext *s,
     return 0;
 }
 
-static int parse_setup_header(AVCodecContext *avctx, VorbisParseContext *s,
+static int parse_setup_header(VorbisParseContext *s,
                               const uint8_t *buf, int buf_size)
 {
     GetBitContext gb, gb0;
@@ -72,25 +80,25 @@ static int parse_setup_header(AVCodecContext *avctx, VorbisParseContext *s,
 
     /* avoid overread */
     if (buf_size < 7) {
-        av_log(avctx, AV_LOG_ERROR, "Setup header is too short\n");
+        av_log(s, AV_LOG_ERROR, "Setup header is too short\n");
         return AVERROR_INVALIDDATA;
     }
 
     /* make sure this is the Setup header */
     if (buf[0] != 5) {
-        av_log(avctx, AV_LOG_ERROR, "Wrong packet type in Setup header\n");
+        av_log(s, AV_LOG_ERROR, "Wrong packet type in Setup header\n");
         return AVERROR_INVALIDDATA;
     }
 
     /* check for header signature */
     if (memcmp(&buf[1], "vorbis", 6)) {
-        av_log(avctx, AV_LOG_ERROR, "Invalid packet signature in Setup header\n");
+        av_log(s, AV_LOG_ERROR, "Invalid packet signature in Setup header\n");
         return AVERROR_INVALIDDATA;
     }
 
     /* reverse bytes so we can easily read backwards with get_bits() */
     if (!(rev_buf = av_malloc(buf_size))) {
-        av_log(avctx, AV_LOG_ERROR, "Out of memory\n");
+        av_log(s, AV_LOG_ERROR, "Out of memory\n");
         return AVERROR(ENOMEM);
     }
     for (i = 0; i < buf_size; i++)
@@ -105,7 +113,7 @@ static int parse_setup_header(AVCodecContext *avctx, VorbisParseContext *s,
         }
     }
     if (!got_framing_bit) {
-        av_log(avctx, AV_LOG_ERROR, "Invalid Setup header\n");
+        av_log(s, AV_LOG_ERROR, "Invalid Setup header\n");
         ret = AVERROR_INVALIDDATA;
         goto bad_header;
     }
@@ -132,7 +140,7 @@ static int parse_setup_header(AVCodecContext *avctx, VorbisParseContext *s,
         }
     }
     if (!got_mode_header) {
-        av_log(avctx, AV_LOG_ERROR, "Invalid Setup header\n");
+        av_log(s, AV_LOG_ERROR, "Invalid Setup header\n");
         ret = AVERROR_INVALIDDATA;
         goto bad_header;
     }
@@ -141,7 +149,7 @@ static int parse_setup_header(AVCodecContext *avctx, VorbisParseContext *s,
      * we may need to approach this the long way and parse the whole Setup
      * header, but I hope very much that it never comes to that. */
     if (last_mode_count > 2) {
-        avpriv_request_sample(avctx,
+        avpriv_request_sample(s,
                               "%d modes (either a false positive or a "
                               "sample from an unknown encoder)",
                               last_mode_count);
@@ -149,7 +157,7 @@ static int parse_setup_header(AVCodecContext *avctx, VorbisParseContext *s,
     /* We're limiting the mode count to 63 so that we know that the previous
      * block flag will be in the first packet byte. */
     if (last_mode_count > 63) {
-        av_log(avctx, AV_LOG_ERROR, "Unsupported mode count: %d\n",
+        av_log(s, AV_LOG_ERROR, "Unsupported mode count: %d\n",
                last_mode_count);
         ret = AVERROR_INVALIDDATA;
         goto bad_header;
@@ -179,20 +187,20 @@ int avpriv_vorbis_parse_extradata(AVCodecContext *avctx, VorbisParseContext *s)
     int header_len[3];
     int ret;
 
-    s->avctx = avctx;
+    s->class = &vorbis_parser_class;
     s->extradata_parsed = 1;
 
     if ((ret = avpriv_split_xiph_headers(avctx->extradata,
                                          avctx->extradata_size, 30,
                                          header_start, header_len)) < 0) {
-        av_log(avctx, AV_LOG_ERROR, "Extradata corrupt.\n");
+        av_log(s, AV_LOG_ERROR, "Extradata corrupt.\n");
         return ret;
     }
 
-    if ((ret = parse_id_header(avctx, s, header_start[0], header_len[0])) < 0)
+    if ((ret = parse_id_header(s, header_start[0], header_len[0])) < 0)
         return ret;
 
-    if ((ret = parse_setup_header(avctx, s, header_start[2], header_len[2])) < 0)
+    if ((ret = parse_setup_header(s, header_start[2], header_len[2])) < 0)
         return ret;
 
     s->valid_extradata = 1;
@@ -227,7 +235,7 @@ int avpriv_vorbis_parse_frame_flags(VorbisParseContext *s, const uint8_t *buf,
             return 0;
 
 bad_packet:
-            av_log(s->avctx, AV_LOG_ERROR, "Invalid packet\n");
+            av_log(s, AV_LOG_ERROR, "Invalid packet\n");
             return AVERROR_INVALIDDATA;
         }
         if (s->mode_count == 1)
@@ -235,7 +243,7 @@ bad_packet:
         else
             mode = (buf[0] & s->mode_mask) >> 1;
         if (mode >= s->mode_count) {
-            av_log(s->avctx, AV_LOG_ERROR, "Invalid mode in packet\n");
+            av_log(s, AV_LOG_ERROR, "Invalid mode in packet\n");
             return AVERROR_INVALIDDATA;
         }
         if(s->mode_blocksize[mode]){
diff --git a/libavcodec/vorbis_parser.h b/libavcodec/vorbis_parser.h
index 590101bbad..aa7c1b0444 100644
--- a/libavcodec/vorbis_parser.h
+++ b/libavcodec/vorbis_parser.h
@@ -31,7 +31,7 @@
 #include "avcodec.h"
 
 typedef struct VorbisParseContext {
-    AVCodecContext *avctx;      ///< codec context
+    const AVClass *class;
     int extradata_parsed;       ///< we have attempted to parse extradata
     int valid_extradata;        ///< extradata is valid, so we can calculate duration
     int blocksize[2];           ///< short and long window sizes