From: Andriy Gelman <andriy.gel...@gmail.com>
Commit 8c8e5d5286bf598a89ef9993a2cf6ea409d03a32 added a way to reduce
seek time by waiting for the windowed tcp packets instead of creating a
new socket connection. It implemented this by overwriting
s->short_seek_threshold in the avio_seek(). However,
s->short_seek_threshold could already be set and be higher than the
threshold set by the protocol (i.e. s->short_seek_threshold is set in
ff_configure_buffers_for_index()).
This new feature was only enabled for tls connections in
70d8077b795766e2486e6ec8110f22a97362d6d7. As in Ticket #9148 it reduced
performance because instead of waiting to refill the AVIOContext buffers
with an existing connections, a new HTTP request was often made instead.
Fixes Ticket #9148.
Signed-off-by: Andriy Gelman <andriy.gel...@gmail.com>
---
libavformat/aviobuf.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index 78cc60b2ae..518cb11129 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -283,13 +283,9 @@ int64_t avio_seek(AVIOContext *s, int64_t offset, int
whence)
if (offset < 0)
return AVERROR(EINVAL);
- if (s->short_seek_get) {
- short_seek = s->short_seek_get(s->opaque);
- /* fallback to default short seek */
- if (short_seek <= 0)
- short_seek = s->short_seek_threshold;
- } else
- short_seek = s->short_seek_threshold;
+ short_seek = s->short_seek_threshold;
+ if (s->short_seek_get)
+ short_seek = FFMAX(s->short_seek_get(s->opaque), short_seek);
offset1 = offset - pos; // "offset1" is the relative offset from the
beginning of s->buffer
s->buf_ptr_max = FFMAX(s->buf_ptr_max, s->buf_ptr);
--
2.30.2
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