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Code Issues Releases Activity

lavf: give more weight to the extension during probing if there is a id3

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tag that is larger than the probe buffer.
Fixes Ticket336

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-11-23 21:56:16 +01:00
parent 6a3a54f5e3
commit 98d1e9f915
1 changed files with 4 additions and 3 deletions
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7
libavformat/utils.c
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@ -309,14 +309,15 @@ AVInputFormat *av_probe_input_format3(AVProbeData *pd, int is_opened, int *score
{
AVProbeData lpd = *pd;
AVInputFormat *fmt1 = NULL, *fmt;
int score, score_max=0;
int score, nodat = 0, score_max=0;
if (lpd.buf_size > 10 && ff_id3v2_match(lpd.buf, ID3v2_DEFAULT_MAGIC)) {
int id3len = ff_id3v2_tag_len(lpd.buf);
if (lpd.buf_size > id3len + 16) {
lpd.buf += id3len;
lpd.buf_size -= id3len;
}
}else
nodat = 1;
}
fmt = NULL;
@ -327,7 +328,7 @@ AVInputFormat *av_probe_input_format3(AVProbeData *pd, int is_opened, int *score
if (fmt1->read_probe) {
score = fmt1->read_probe(&lpd);
if(fmt1->extensions && av_match_ext(lpd.filename, fmt1->extensions))
score = FFMAX(score, 1);
score = FFMAX(score, nodat ? AVPROBE_SCORE_MAX/4-1 : 1);
} else if (fmt1->extensions) {
if (av_match_ext(lpd.filename, fmt1->extensions)) {
score = 50;