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id3v2: constify the 'tag' parameter to special metadata parsing callback

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Those functions should not ever modify it.
This commit is contained in:
Anton Khirnov 2015-01-10 09:39:32 +01:00 committed by Vittorio Giovara
parent f86f39cb9b
commit 8809c974a3
1 changed files with 3 additions and 3 deletions
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6
libavformat/id3v2.c
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@ -300,7 +300,7 @@ static void read_ttag(AVFormatContext *s, AVIOContext *pb, int taglen,
* Parse GEOB tag into a ID3v2ExtraMetaGEOB struct.
*/
static void read_geobtag(AVFormatContext *s, AVIOContext *pb, int taglen,
char *tag, ID3v2ExtraMeta **extra_meta)
const char *tag, ID3v2ExtraMeta **extra_meta)
{
ID3v2ExtraMetaGEOB *geob_data = NULL;
ID3v2ExtraMeta *new_extra = NULL;
@ -432,7 +432,7 @@ static void free_apic(void *obj)
}
static void read_apic(AVFormatContext *s, AVIOContext *pb, int taglen,
char *tag, ID3v2ExtraMeta **extra_meta)
const char *tag, ID3v2ExtraMeta **extra_meta)
{
int enc, pic_type;
char mimetype[64];
@ -508,7 +508,7 @@ fail:
typedef struct ID3v2EMFunc {
const char *tag3;
const char *tag4;
void (*read)(AVFormatContext *, AVIOContext *, int, char *,
void (*read)(AVFormatContext *, AVIOContext *, int, const char *,
ID3v2ExtraMeta **);
void (*free)(void *obj);
} ID3v2EMFunc;