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wtv: Check the return value from gmtime

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On MSVC, gmtime returns NULL for values outside of their supported
range (and these show up in our fate test). This doesn't seem
to affect the actual fate test result.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2012-06-23 21:46:26 +03:00
parent 8299260470
commit dc53858063
1 changed files with 15 additions and 3 deletions
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18
libavformat/wtv.c
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@ -443,7 +443,11 @@ static int read_probe(AVProbeData *p)
static void filetime_to_iso8601(char *buf, int buf_size, int64_t value)
{
time_t t = (value / 10000000LL) - 11644473600LL;
strftime(buf, buf_size, "%Y-%m-%d %H:%M:%S", gmtime(&t));
struct tm *tm = gmtime(&t);
if (tm)
strftime(buf, buf_size, "%Y-%m-%d %H:%M:%S", gmtime(&t));
else
buf[0] = '\0';
}
/**
@ -452,7 +456,11 @@ static void filetime_to_iso8601(char *buf, int buf_size, int64_t value)
static void crazytime_to_iso8601(char *buf, int buf_size, int64_t value)
{
time_t t = (value / 10000000LL) - 719162LL*86400LL;
strftime(buf, buf_size, "%Y-%m-%d %H:%M:%S", gmtime(&t));
struct tm *tm = gmtime(&t);
if (tm)
strftime(buf, buf_size, "%Y-%m-%d %H:%M:%S", gmtime(&t));
else
buf[0] = '\0';
}
/**
@ -461,7 +469,11 @@ static void crazytime_to_iso8601(char *buf, int buf_size, int64_t value)
static void oledate_to_iso8601(char *buf, int buf_size, int64_t value)
{
time_t t = 631112400LL + 86400*av_int2double(value);
strftime(buf, buf_size, "%Y-%m-%d %H:%M:%S", gmtime(&t));
struct tm *tm = gmtime(&t);
if (tm)
strftime(buf, buf_size, "%Y-%m-%d %H:%M:%S", gmtime(&t));
else
buf[0] = '\0';
}
static void get_attachment(AVFormatContext *s, AVIOContext *pb, int length)