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lavf/segment: compute max list segment duration

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This is useful for the M3U8 format incoming patch.
This commit is contained in:
Stefano Sabatini 2012-08-15 23:14:34 +02:00
parent 769500c2a3
commit 4a12d1e8e7
1 changed files with 10 additions and 2 deletions
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12
libavformat/segment.c
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@ -49,6 +49,7 @@ typedef struct {
char *format; ///< format to use for output segment files
char *list; ///< filename for the segment list file
int list_size; ///< number of entries for the segment list file
double list_max_segment_time; ///< max segment time in the current list
ListType list_type; ///< set the list type
AVIOContext *list_pb; ///< list file put-byte context
char *time_str; ///< segment duration specification string
@ -112,8 +113,14 @@ fail:
static int segment_list_open(AVFormatContext *s)
{
SegmentContext *seg = s->priv_data;
return avio_open2(&seg->list_pb, seg->list, AVIO_FLAG_WRITE,
&s->interrupt_callback, NULL);
int ret;
ret = avio_open2(&seg->list_pb, seg->list, AVIO_FLAG_WRITE,
&s->interrupt_callback, NULL);
if (ret < 0)
return ret;
seg->list_max_segment_time = 0;
return ret;
}
static void segment_list_close(AVFormatContext *s)
@ -147,6 +154,7 @@ static int segment_end(AVFormatContext *s)
} else if (seg->list_type == LIST_TYPE_EXT) {
avio_printf(seg->list_pb, "%s,%f,%f\n", oc->filename, seg->start_time, seg->end_time);
}
seg->list_max_segment_time = FFMAX(seg->end_time - seg->start_time, seg->list_max_segment_time);
avio_flush(seg->list_pb);
}