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avformat/utils: add ff_parse_creation_time_metadata

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Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2016-02-04 03:28:19 +01:00
parent f834f0cab6
commit e942454daf
2 changed files with 28 additions and 0 deletions
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11
libavformat/internal.h
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@ -554,4 +554,15 @@ int ffio_open2_wrapper(struct AVFormatContext *s, AVIOContext **pb, const char *
*/
void ff_format_io_close(AVFormatContext *s, AVIOContext **pb);
/**
* Parse creation_time in AVFormatContext metadata if exists and warn if the
* parsing fails.
*
* @param s AVFormatContext
* @param timestamp parsed timestamp in microseconds, only set on successful parsing
* @param return_seconds set this to get the number of seconds in timestamp instead of microseconds
* @return 1 if OK, 0 if the metadata was not present, AVERROR(EINVAL) on parse error
*/
int ff_parse_creation_time_metadata(AVFormatContext *s, int64_t *timestamp, int return_seconds);
#endif /* AVFORMAT_INTERNAL_H */

17
libavformat/utils.c
View File

@ -4751,3 +4751,20 @@ void ff_format_io_close(AVFormatContext *s, AVIOContext **pb)
s->io_close(s, *pb);
*pb = NULL;
}
int ff_parse_creation_time_metadata(AVFormatContext *s, int64_t *timestamp, int return_seconds)
{
AVDictionaryEntry *entry;
int64_t parsed_timestamp;
int ret;
if ((entry = av_dict_get(s->metadata, "creation_time", NULL, 0))) {
if ((ret = av_parse_time(&parsed_timestamp, entry->value, 0)) >= 0) {
*timestamp = return_seconds ? parsed_timestamp / 1000000 : parsed_timestamp;
return 1;
} else {
av_log(s, AV_LOG_WARNING, "Failed to parse creation_time %s\n", entry->value);
return ret;
}
}
return 0;
}