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wtvdec: return error when filetime_to_iso8601/crazytime_to_iso8601 conversion fails 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Peter Ross 2012-07-02 10:28:31 +10:00 committed by Michael Niedermayer
parent d35a986404
commit c4e0e74438
1 changed files with 20 additions and 12 deletions
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32
libavformat/wtvdec.c
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@ -368,28 +368,30 @@ static int read_probe(AVProbeData *p)
/**
* Convert win32 FILETIME to ISO-8601 string
* @return <0 on error
*/
static void filetime_to_iso8601(char *buf, int buf_size, int64_t value)
static int filetime_to_iso8601(char *buf, int buf_size, int64_t value)
{
time_t t = (value / 10000000LL) - 11644473600LL;
struct tm *tm = gmtime(&t);
if (tm)
strftime(buf, buf_size, "%Y-%m-%d %H:%M:%S", gmtime(&t));
else
buf[0] = '\0';
if (!tm)
return -1;
strftime(buf, buf_size, "%Y-%m-%d %H:%M:%S", gmtime(&t));
return 0;
}
/**
* Convert crazy time (100ns since 1 Jan 0001) to ISO-8601 string
* @return <0 on error
*/
static void crazytime_to_iso8601(char *buf, int buf_size, int64_t value)
static int crazytime_to_iso8601(char *buf, int buf_size, int64_t value)
{
time_t t = (value / 10000000LL) - 719162LL*86400LL;
struct tm *tm = gmtime(&t);
if (tm)
strftime(buf, buf_size, "%Y-%m-%d %H:%M:%S", gmtime(&t));
else
buf[0] = '\0';
if (!tm)
return -1;
strftime(buf, buf_size, "%Y-%m-%d %H:%M:%S", gmtime(&t));
return 0;
}
/**
@ -460,10 +462,16 @@ static void get_tag(AVFormatContext *s, AVIOContext *pb, const char *key, int ty
int64_t num = avio_rl64(pb);
if (!strcmp(key, "WM/EncodingTime") ||
!strcmp(key, "WM/MediaOriginalBroadcastDateTime"))
filetime_to_iso8601(buf, buf_size, num);
if (filetime_to_iso8601(buf, buf_size, num) < 0) {
av_free(buf);
return;
}
else if (!strcmp(key, "WM/WMRVEncodeTime") ||
!strcmp(key, "WM/WMRVEndTime"))
crazytime_to_iso8601(buf, buf_size, num);
if (crazytime_to_iso8601(buf, buf_size, num) < 0) {
av_free(buf);
return;
}
else if (!strcmp(key, "WM/WMRVExpirationDate")) {
if (oledate_to_iso8601(buf, buf_size, num) < 0 ) {
av_free(buf);