avcodec/avcodec: Allow up to seven codec ids per parser

ff_pnm_parser and ff_vp3_parser already hit the current limit;
an addition to the former (to handle pfm) is planned.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

doc/APIchanges

@@ -14,6 +14,9 @@ libavutil:     2021-04-27
 
 API changes, most recent first:
 
+2021-09-02 - xxxxxxxxxx - lavc 59.7.100 - avcodec.h
+  Incremented the number of elements of AVCodecParser.codec_ids to seven.
+
 2021-08-24 - xxxxxxxxxx - lavc 59.6.100 - avcodec.h
   Add FF_CODEC_PROPERTY_FILM_GRAIN
 

libavcodec/avcodec.h

@@ -2927,7 +2927,7 @@ typedef struct AVCodecParserContext {
 } AVCodecParserContext;
 
 typedef struct AVCodecParser {
-    int codec_ids[5]; /* several codec IDs are permitted */
+    int codec_ids[7]; /* several codec IDs are permitted */
     int priv_data_size;
     int (*parser_init)(AVCodecParserContext *s);
     /* This callback never returns an error, a negative value means that

libavcodec/parser.c

@@ -46,7 +46,9 @@ AVCodecParserContext *av_parser_init(int codec_id)
             parser->codec_ids[1] == codec_id ||
             parser->codec_ids[2] == codec_id ||
             parser->codec_ids[3] == codec_id ||
-            parser->codec_ids[4] == codec_id)
+            parser->codec_ids[4] == codec_id ||
+            parser->codec_ids[5] == codec_id ||
+            parser->codec_ids[6] == codec_id)
             goto found;
     }
     return NULL;
@@ -127,7 +129,9 @@ int av_parser_parse2(AVCodecParserContext *s, AVCodecContext *avctx,
                avctx->codec_id == s->parser->codec_ids[1] ||
                avctx->codec_id == s->parser->codec_ids[2] ||
                avctx->codec_id == s->parser->codec_ids[3] ||
-               avctx->codec_id == s->parser->codec_ids[4]);
+               avctx->codec_id == s->parser->codec_ids[4] ||
+               avctx->codec_id == s->parser->codec_ids[5] ||
+               avctx->codec_id == s->parser->codec_ids[6]);
 
     if (!(s->flags & PARSER_FLAG_FETCHED_OFFSET)) {
         s->next_frame_offset =

libavcodec/version.h

@@ -28,7 +28,7 @@
 #include "libavutil/version.h"
 
 #define LIBAVCODEC_VERSION_MAJOR  59
-#define LIBAVCODEC_VERSION_MINOR   6
+#define LIBAVCODEC_VERSION_MINOR   7
 #define LIBAVCODEC_VERSION_MICRO 100
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \