[FFmpeg-trac] #7674(undetermined:reopened): ffmpeg with cuvid transcoding after version 3.4.1 work unstable on heavy load CUDA card

[FFmpeg]

#7674: ffmpeg with cuvid transcoding after version 3.4.1 work unstable on heavy
load CUDA card
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             Reporter:  maxfs79      |                    Owner:
                 Type:  defect       |                   Status:  reopened
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by malakudi):

 With the above patch applied, nvEncRegisterResource is called 5 times at
 start and nvEncUnregisterResource is called 5 times at end of process.
 Without it (current git code) nvEncRegisterResource is called 2984 times
 and nvEncUnregisterResource is also called 2984 times (for the test input
 file of 2984 frames). So not calling nvEncUnregisterResource at this
 specific code location does not leave any garbage since
 nvEncRegisterResource and nvEncUnregisterResource are matching, it just
 creates really unnecessary overhead registering and unregistering on every
 frame. Please fix.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7674#comment:22>
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