This is mandated in draft-pantos-http-live-streaming-07, section
6.3.4.
---
libavformat/applehttp.c | 11 ++++++++---
1 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/libavformat/applehttp.c b/libavformat/applehttp.c
index 9ab5927..f62e2d0 100644
--- a/libavformat/applehttp.c
+++ b/libavformat/applehttp.c
@@ -376,7 +376,6 @@ static int read_data(void *opaque, uint8_t *buf, int
buf_size)
restart:
if (!v->input) {
-reload:
/* If this is a live stream and the reload interval has elapsed since
* the last playlist reload, reload the variant playlists now. */
int64_t reload_interval = v->n_segments > 0 ?
@@ -384,10 +383,16 @@ reload:
v->target_duration;
reload_interval *= 1000000;
+reload:
if (!v->finished &&
- av_gettime() - v->last_load_time >= reload_interval &&
- (ret = parse_playlist(c, v->url, v, NULL)) < 0)
+ av_gettime() - v->last_load_time >= reload_interval) {
+ if ((ret = parse_playlist(c, v->url, v, NULL)) < 0)
return ret;
+ /* If we need to reload the playlist again below (if
+ * there's still no more segments), switch to a reload
+ * interval of half the target duration. */
+ reload_interval = v->target_duration * 500000;
+ }
if (v->cur_seq_no < v->start_seq_no) {
av_log(NULL, AV_LOG_WARNING,
"skipping %d segments ahead, expired from playlists\n",
--
1.7.3.1
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