Samsung NX1 Camera HEVC (H.265) Encoding Crash

PsychotropicFilms wrote on 12/23/2016, 9:41 AM

Does anyone have a Samsung NX1 camera and attempted to export the camera's natively encoded H.265 video files in VPX (latest version)? VPX will import and play these files in the timeline, but any format export or BluRay disc encoding results in an encoding error.

The Samsung NX1 creates H.265 files of 4K video natively in the camera, so I'm thinking that there is something in Samsung's encoding algorithm for HEVC that VPX is struggling with.

Is anyone else having this export encoding problem in VPX?

Thanks, Bart

Comments

Scenestealer wrote on 12/23/2016, 5:08 PM

Hi Bart

I presume you have tried encoding without Hardware assistance as this can cause errors as can having the "calculate effects on the GPU" ticked in the export settings.

Can you export H265 material from any other source besides Samsung?

I do not think there is a Bluray burn option in VPX for HEVC/ H.265 or 4K. This is a different standard.

I have not any material from an NX1 but maybe analyse it with Media Info and post it or upload a sample to dropbox so we can test.

Peter

PsychotropicFilms wrote on 12/23/2016, 11:50 PM

Hi Peter: I was able to import the H.265 files into Cyberlink PowerDirector 14 and export as MP4 without problem. I plan to use load these files back in VPX to salvage my video project - that's my work-around if all else fails.

I will test your idea about removing hardware acceleration from the encoding attributes. I've had lots of trouble trying to customize exports in the past. For example, setting '2-pass encoding' as an option crashes the encoding process once initiated. Most of the time, I only adjust to set "Best Quality" and 'up' the audio sampling frequency, and leave everything else alone. I'm not sure why Magix hasn't smoothed-out encoding issues after all this time.

Ok, now that I have your suggestion, I'm going to give it a try.

Thanks for your response, it was helpful.

Regards, Bart

PsychotropicFilms wrote on 12/26/2016, 7:24 PM

Hi Peter: I 'de-selected' any boxes associated with hardware encoding and tired exporting in MP4 format. The only options I modified in the dialog box was to select 'best' for encoding quality. Everything else were the default setting. The bad news is that it didn't work.

My work-around now is to import to Cyberlink's Power Director, my Samsung NX1 encoded H.265 files (UHD 4K) and export from that editor to HD (1920 x 1080) MP4; then replace any H.265 files in my Video ProX timeline with the re-encoded HD MP4 files.

Hopefully that will work. In the meantime, I'll waiting to hear back from MAGIX support on this issue.

Bart