# QuickSync transcoder problem

**URL:** <https://community.wowza.com/t/quicksync-transcoder-problem/45279>\
**Category:** Wowza Streaming Engine\
**Created:** [June 10, 2015, 2:58am UTC](https://community.wowza.com/t/quicksync-transcoder-problem/45279 "2015-06-10T02:58:03Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![zheng\_leo](https://avatars.discourse-cdn.com/v4/letter/z/c67d28/32.png) [@zheng\_leo](https://community.wowza.com/u/zheng_leo)\
**Post date:** [June 10, 2015, 2:58am UTC](https://community.wowza.com/t/quicksync-transcoder-problem/45279/1 "2015-06-10T02:58:03Z")

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Hello,

i’m running Wowza Streaming Engine 4.1.2 on ubuntu 14.04LTS, CPU is i7-3770. and i configure quicksync follow this page [https://www.wowza.com/docs/how-to-configure-quick-sync-accelerated-encoding-on-linux](https://www.wowza.com/docs/how-to-configure-quick-sync-accelerated-encoding-on-linux).

now i have 5 channel transcoded take advantage of quicksync at the same time, the source signal were 4\* 1920x1080 + 1\*1280x720 with bitrate 12Mbps average, and the CPU or gpu utilization is all around 50%. but i got some error message in the log file as this:

[HTML] - - - SanJosePacketHandler.handlePacket[live/_definst_/trans1.stream\_720p]: Timecode out of order [video]: 9546425:10314806

WARN server comment 2015-06-10 06:36:29 - - - - - 1080.818 - - - - -

- 
  - 
    - CupertinoPacketHandler.handlePacket[live/_definst_/trans1.stream\_720p]: Timecode out of order [video]: 9546425:1031480

6

WARN server comment 2015-06-10 06:36:29 - - - - - 1081.269 - - - - -

- 
  - 
    - SanJosePacketHandler.resetStream[live/_definst_/trans1.stream\_720p][0:11]: Timecodes jumped back in time.

WARN server comment 2015-06-10 06:36:29 - - - - - 1081.269 - - - - -

- 
  - 
    - CupertinoPacketHandler.resetStream[live/_definst_/trans1.stream\_720p][0:11]: Timecodes jumped back in time.

WARN server comment 2015-06-10 06:47:23 - - - - - 1735.544 - - - - -

- 
  - 
    - CupertinoPacketHandler.handlePacket[live/_definst_/trans1.stream]: Timecode out of order [video]: 10202483:10202507

WARN server comment 2015-06-10 06:47:23 - - - - - 1735.544 - - - - -

- 
  - 
    - SanJosePacketHandler.handlePacket[live/_definst_/trans1.stream]: Timecode out of order [video]: 10202483:10202507[/HTML]

sometime is the audio timecode out of order, and then it may cause black screen or audio miss. anything i can do to deal with it.

by the way, have your ever do the test with 3rd Generation Intel Core cpu, got some Transcoder performance benchmark like this page:[https://www.wowza.com/docs/wowza-transcoder-performance-benchmark](https://www.wowza.com/docs/wowza-transcoder-performance-benchmark)

Thanks

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<div class="post-metadata">

**Author:** ![zheng\_leo](https://avatars.discourse-cdn.com/v4/letter/z/c67d28/32.png) [@zheng\_leo](https://community.wowza.com/u/zheng_leo)\
**Post date:** [June 10, 2015, 3:02am UTC](https://community.wowza.com/t/quicksync-transcoder-problem/45279/2 "2015-06-10T03:02:55Z")

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i also got another server with Intel Xeon® CPU E3-1245 V2, it has the same problem. and i configure the advanced monitoring follow this page [https://www.wowza.com/docs/how-to-enable-advanced-monitoring-and-resetting-of-mediacaster-streams](https://www.wowza.com/docs/how-to-enable-advanced-monitoring-and-resetting-of-mediacaster-streams). it seems not work sometimes.