avcodec: Remove FF_API_PARSER_CODECID

The parser API was scheduled to use enum AVCodecID
in commit 8a322c956f
on 2025-11-01. The switch is made now despite this
being fairly recently because it involves no deprecation
and therefore no change from our downstreams at all.

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

libavcodec/avcodec.h

@@ -2761,11 +2761,7 @@ typedef struct AVCodecParserContext {
 } AVCodecParserContext;
 
 typedef struct AVCodecParser {
-#if FF_API_PARSER_CODECID
-    int codec_ids[7]; /* several codec IDs are permitted */
-#else
     enum AVCodecID codec_ids[7]; /* several codec IDs are permitted */
-#endif
 #if FF_API_PARSER_PRIVATE
     /*****************************************************************
      * All fields below this line are not part of the public API. They
@@ -2803,11 +2799,7 @@ typedef struct AVCodecParser {
  */
 const AVCodecParser *av_parser_iterate(void **opaque);
 
-#if FF_API_PARSER_CODECID
-AVCodecParserContext *av_parser_init(int codec_id);
-#else
 AVCodecParserContext *av_parser_init(enum AVCodecID codec_id);
-#endif
 
 /**
  * Parse a packet.

libavcodec/parser.c

@@ -32,11 +32,7 @@
 #include "parser.h"
 #include "parser_internal.h"
 
-#if FF_API_PARSER_CODECID
-av_cold AVCodecParserContext *av_parser_init(int codec_id)
-#else
 av_cold AVCodecParserContext *av_parser_init(enum AVCodecID codec_id)
-#endif
 {
     AVCodecParserContext *s = NULL;
     const AVCodecParser *parser;

libavcodec/parser_internal.h

@@ -28,11 +28,7 @@
 #if FF_API_PARSER_PRIVATE
 typedef union FFCodecParser {
     struct {
-#if FF_API_PARSER_CODECID
-        int codec_ids[7]; /* several codec IDs are permitted */
-#else
         enum AVCodecID codec_ids[7]; /* several codec IDs are permitted */
-#endif
         int priv_data_size;
         int (*init)(AVCodecParserContext *s);
         int (*parse)(AVCodecParserContext *s,

libavcodec/version_major.h

@@ -47,7 +47,6 @@
 #define FF_API_NVDEC_OLD_PIX_FMTS  (LIBAVCODEC_VERSION_MAJOR < 63)
 
 #define FF_API_PARSER_PRIVATE      (LIBAVCODEC_VERSION_MAJOR < 63)
-#define FF_API_PARSER_CODECID      (LIBAVCODEC_VERSION_MAJOR < 63)
 
 #define FF_API_MJPEG_EXTERN_HUFF   (LIBAVCODEC_VERSION_MAJOR < 63)
 #define FF_API_NVENC_H264_MAIN     (LIBAVCODEC_VERSION_MAJOR < 63)