external/srs
1
0
Fork 0
mirror of https://github.com/ossrs/srs.git synced 2025-03-09 15:49:59 +00:00
Code Issues Releases Wiki Activity

time jitter detect and correct, very simple algorithm

Browse source
This commit is contained in:
winlin 2013-10-23 21:37:22 +08:00
parent e31e3d601d
commit b40d0467a8
1 changed files with 8 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

13
trunk/src/core/srs_core_source.cpp
View file

@ -68,11 +68,14 @@ int SrsConsumer::enqueue(SrsSharedPtrMessage* msg)
int ret = ERROR_SUCCESS; int ret = ERROR_SUCCESS;
/** /**
* we use a very simple time jitter detect/correct algorithm, * we use a very simple time jitter detect/correct algorithm:
* if the delta of time is nagative or greater than CONST_MAX_JITTER_MS, * 1. delta: ensure the delta is positive and valid,
* we enforce the delta to DEFAULT_FRAME_TIME_MS, * we set the delta to DEFAULT_FRAME_TIME_MS,
* and update the last_pkt_time which used to detect next jitter. * if the delta of time is nagative or greater than CONST_MAX_JITTER_MS.
* the last_pkt_correct_time is enforce the time monotonically. * 2. last_pkt_time: specifies the original packet time,
* is used to detect next jitter.
* 3. last_pkt_correct_time: simply add the positive delta,
* and enforce the time monotonically.
*/ */
int32_t time = msg->header.timestamp; int32_t time = msg->header.timestamp;
int32_t delta = time - last_pkt_time; int32_t delta = time - last_pkt_time;