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Enable hardware decoding limitation
JL_JL [Avatar]
Senior Contributor Location: Arizona, USA Joined: Oct 01, 2006 20:01 Messages: 6091 Offline
[Post New]
1) Put 5 boats.wmv in the timeline
2) Produce to H.265 HEVC, MP4, 1920x1080/30p (11 Mbps) will be fine
3) Remove the 5 boats.wmv from the timeline and add the produced file from item 2 to timeline
4) In "Preferences" > "Hardware Acceleration" make sure "Enable hardware decoding" is checked
5) Produce to H.264 AVC, M2TS, 1920x1080/60i (16Mbps)

Item 5 appears to work partially but the full video is not produced, only a small fraction of the timeline.

6) Move the timeline content slightly downstream so a blank spot occurs at the beginning of the timeline
7) Produce to H.264 AVC, M2TS, 1920x1080/60i (16Mbps)

Item 7 works fine

8) Move the timeline content back to 0:00
9) Add a Fx to the first few seconds
10) Produce to H.264 AVC, M2TS, 1920x1080/60i (16Mbps)

Item 10 works fine

Above issue occurs with several different Nvidia GPU's, WIN7, WIN10, and several created H.265 source profiles and containers created from the boats.wmv (Item 2) and also with several desired output profiles/containers like H.264, on (Item 5)

Basically keeping "Enable hardware decoding" unchecked in "Preferences" will circumvent the issue, it's still a implementation limitation, CL, have a look.


This message was edited 1 time. Last update was at Aug 22. 2015 20:30

[Post New]
Did tests exactly as you describe, items 5.6 and 10 all worked well.

Interestingly, H.265 took 3:45 minutes equanto that H.264 took 1:05 for the same process, LVH on or OFF, item 4.

H.265 Hardware Encoder not active video here, Signature PC Video ATI.

If the event reminded me that another post here and that has not been resolved.

This message was edited 1 time. Last update was at Aug 23. 2015 12:03

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