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id3v2: make ff_id3v2_parse static

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Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 46a2da7698634214eed6d269fc72d284e3d3700f)
This commit is contained in:
Anton Khirnov 2011-01-20 08:35:58 +00:00 committed by Michael Niedermayer
parent 9256dc28ab
commit b3158f7a42
2 changed files with 28 additions and 34 deletions
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56
libavformat/id3v2.c
View File

@ -50,33 +50,6 @@ int ff_id3v2_tag_len(const uint8_t * buf)
return len; return len;
} }
void ff_id3v2_read(AVFormatContext *s, const char *magic)
{
int len, ret;
uint8_t buf[ID3v2_HEADER_SIZE];
int found_header;
int64_t off;
do {
/* save the current offset in case there's nothing to read/skip */
off = url_ftell(s->pb);
ret = get_buffer(s->pb, buf, ID3v2_HEADER_SIZE);
if (ret != ID3v2_HEADER_SIZE)
return;
found_header = ff_id3v2_match(buf, magic);
if (found_header) {
/* parse ID3v2 header */
len = ((buf[6] & 0x7f) << 21) |
((buf[7] & 0x7f) << 14) |
((buf[8] & 0x7f) << 7) |
(buf[9] & 0x7f);
ff_id3v2_parse(s, len, buf[3], buf[5]);
} else {
url_fseek(s->pb, off, SEEK_SET);
}
} while (found_header);
}
static unsigned int get_size(ByteIOContext *s, int len) static unsigned int get_size(ByteIOContext *s, int len)
{ {
int v = 0; int v = 0;
@ -162,7 +135,7 @@ static void read_ttag(AVFormatContext *s, ByteIOContext *pb, int taglen, const c
av_metadata_set2(&s->metadata, key, val, 0); av_metadata_set2(&s->metadata, key, val, 0);
} }
void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t flags) static void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t flags)
{ {
int isv34, tlen, unsync; int isv34, tlen, unsync;
char tag[5]; char tag[5];
@ -276,6 +249,33 @@ void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t flags)
av_free(buffer); av_free(buffer);
} }
void ff_id3v2_read(AVFormatContext *s, const char *magic)
{
int len, ret;
uint8_t buf[ID3v2_HEADER_SIZE];
int found_header;
int64_t off;
do {
/* save the current offset in case there's nothing to read/skip */
off = url_ftell(s->pb);
ret = get_buffer(s->pb, buf, ID3v2_HEADER_SIZE);
if (ret != ID3v2_HEADER_SIZE)
return;
found_header = ff_id3v2_match(buf, magic);
if (found_header) {
/* parse ID3v2 header */
len = ((buf[6] & 0x7f) << 21) |
((buf[7] & 0x7f) << 14) |
((buf[8] & 0x7f) << 7) |
(buf[9] & 0x7f);
ff_id3v2_parse(s, len, buf[3], buf[5]);
} else {
url_fseek(s->pb, off, SEEK_SET);
}
} while (found_header);
}
const AVMetadataConv ff_id3v2_metadata_conv[] = { const AVMetadataConv ff_id3v2_metadata_conv[] = {
{ "TALB", "album"}, { "TALB", "album"},
{ "TAL", "album"}, { "TAL", "album"},

6
libavformat/id3v2.h
View File

@ -53,12 +53,6 @@ int ff_id3v2_match(const uint8_t *buf, const char *magic);
*/ */
int ff_id3v2_tag_len(const uint8_t *buf); int ff_id3v2_tag_len(const uint8_t *buf);
/**
* ID3v2 parser
* Handles ID3v2.2, 2.3 and 2.4.
*/
void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t flags);
/** /**
* Read an ID3v2 tag * Read an ID3v2 tag
*/ */