Signed-off-by: Marton Balint <c...@passwd.hu>
---
libavformat/internal.h | 11 +++++++++++
libavformat/utils.c | 17 +++++++++++++++++
2 files changed, 28 insertions(+)
diff --git a/libavformat/internal.h b/libavformat/internal.h
index 2cb3481..f88cc9a 100644
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -548,4 +548,15 @@ int ffio_open2_wrapper(struct AVFormatContext *s,
AVIOContext **pb, const char *
*/
#define FFERROR_REDO FFERRTAG('R','E','D','O')
+/**
+ * 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 */
diff --git a/libavformat/utils.c b/libavformat/utils.c
index f8846b7..73b1c29 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -4742,3 +4742,20 @@ int av_apply_bitstream_filters(AVCodecContext *codec,
AVPacket *pkt,
}
return ret;
}
+
+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;
+}
--
2.6.2
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