1 Topic by bonega (edited by bonega 01-11-2019 14:28:17)

Topic: Transcoding of 3D/VR video fails

See provided log.

11:52:35.386: (+) Video --vid=1 (*) (h264 3840x1920 59.803fps)
11:52:35.386: Audio --aid=1 --alang=eng (*) (aac 6ch 48000Hz)
11:52:35.913: VO: [lavc] 3840x1920 yuv420p
11:52:35.913: [vo/lavc] Opening encoder: NVIDIA NVENC H.264 encoder [h264_nvenc]
11:52:36.140: [encode] Opening output file: C:/filename.SVP.temporary.mkv
11:52:36.140: [encode] Opening muxer: Matroska [matroska]
11:52:36.145: V: 00:00:00 / 00:49:02 (0%) {0.7min 7.4MB}
11:53:36.152: V: 00:00:26 / 00:49:02 (0%) {110.0min 53.0fps 18692.5MB}
11:54:36.177: V: 00:00:53 / 00:49:02 (1%) {108.9min 53.0fps 20279.2MB}
...
13:37:38.187: V: 00:48:44 / 00:49:02 (99%) {0.7min 55.6fps 19751.8MB}
13:37:48.334: VO: [lavc] 1920x1080 yuv420p
13:37:48.334: [vo/lavc] resolution changes not supported.
13:37:48.335: Could not initialize video chain.
13:37:48.494: Video: no video
13:37:48.497: [encode] video: encoded 20578334905 bytes
13:37:48.497: [encode] audio: encoded 0 bytes
13:37:48.497: [encode] muxing overhead 2926065 bytes
13:37:48.501: Exiting... (Interrupted by error)
13:37:48.633: (!!!) Intermediate file may be broken: C:/filename.SVP.temporary.mkv

There is a filename.SVP.temporary.mkv that seems to contain the transcoded video, but without sound.
The resolution change isn't requested and probably is what breaks the process.
Setting: 3D: 3840x1920 @59.803 -> 3840x1920 @119.606
This worked before I upgraded svp like a month or two ago.
Thanks for any help.

  • MAG79
  • SVP developer
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Re: Transcoding of 3D/VR video fails

Looks like your source file has two video tracks with different resolutions.
temporary.mkv contain intermediate video-track.
Final file must be called SVP.mp4. It will be with sound.

What version of SVP are you using? Can you provide full log file?
Better way is to send us problem report via SVP.

Re: Transcoding of 3D/VR video fails

@bonega Maybe this helps:
https://www.svp-team.com/forum/viewtopic.php?id=5183

Re: Transcoding of 3D/VR video fails

MAG79 wrote:

Looks like your source file has two video tracks with different resolutions.
temporary.mkv contain intermediate video-track.
Final file must be called SVP.mp4. It will be with sound.

What version of SVP are you using? Can you provide full log file?
Better way is to send us problem report via SVP.

I have attached coder.log and mediainfo
version 4.3.0.173

MPC-HC shows only one audio/video track

Post's attachments

coder.log 10.04 kb, 248 downloads since 2019-11-03 

filename.mp4.MediaInfo.txt 5.32 kb, 280 downloads since 2019-11-03 

  • MAG79
  • SVP developer
  • Offline

Re: Transcoding of 3D/VR video fails

MediaInfo tells it is AVC. But I see strange frame size:

Width                          : 3 840 pixels
Height                         : 1 920 pixels

Is it two planes 1920x1920 side-by-side?

It looks like coder are tried to change resolution at 99% of file length:

11:13:05.951: VO: [lavc] 3840x1920 yuv420p
11:13:05.951: [vo/lavc] Opening encoder: NVIDIA NVENC H.264 encoder [h264_nvenc]
...
13:15:16.775: VO: [lavc] 1920x1080 yuv420p
13:15:16.775: [vo/lavc] resolution changes not supported.

I think something wrong with your file. It looks like video stream has two pieces of video with different frame size. I don't know how it possible. The first one is 3840x1090 and the second is 1920x1080.
Try to cut ending.

Re: Transcoding of 3D/VR video fails

Yeah, it is SBS.
I have had this problem with all VR clips after I upgraded SVP version.
Will try to cut ending.