Question / Help "Unspecified error" when attempting to record in FLV using H265 (AMD card)

[thewatcheruatu]

Sorry, complete noob. I've only ever used OBS Studio for some basic screen recording where I didn't care about the quality so much. It's fine with default settings.

I wanted to try recording with a higher bitrate, though, so I decided to go into the advanced recording settings and enable the H265/HVEC Encoder (AMD Advanced Media Framework). This crashes immediately every time with an "Unspecified error". I don't have this problem when I switch from FLV to MKV, but MKV is a little inconvenient for me, because when I use the remux tool in OBS Studio, it doesn't produce an MP4 file that I can easily import into my video editor (only the sound gets imported, but I can open the full video in VLC, so I know it works). That's a separate problem I wouldn't mind knowing how to solve, but it can wait for another day.

When I remux from FLV, however, the video is instantly importable. So ideally, I would use FLV.

Here's everything that gets logged from the point that I press the record hotkey (I've been testing it out with The Sims 4). Any help would be most appreciated!

22:32:03.304: Starting recording due to hotkey
22:32:03.554: [AMF] [H265]<Id: 5> Encoder Parameters:
22:32:03.554: [AMF] [H265]<Id: 5> Backend:
22:32:03.554: [AMF] [H265]<Id: 5> Video API: Direct3D 11
22:32:03.554: [AMF] [H265]<Id: 5> Video Adapter: Radeon (TM) RX 480 Graphics (VEN_1002/DEV_67df/SUB_5051043/REV_00c7)
22:32:03.554: [AMF] [H265]<Id: 5> OpenCL: Not Supported
22:32:03.554: [AMF] [H265]<Id: 5> Transfer: Disabled
22:32:03.554: [AMF] [H265]<Id: 5> Conversion: Disabled
22:32:03.554: [AMF] [H265]<Id: 5> Multi-Threading: Disabled
22:32:03.554: [AMF] [H265]<Id: 5> Queue Size: 8
22:32:03.554: [AMF] [H265]<Id: 5> Frame:
22:32:03.554: [AMF] [H265]<Id: 5> Format: NV12 601 Partial
22:32:03.554: [AMF] [H265]<Id: 5> Resolution: 1920x1080
22:32:03.554: [AMF] [H265]<Id: 5> Frame Rate: 60/1
22:32:03.554: [AMF] [H265]<Id: 5> Aspect Ratio: 1:1
22:32:03.554: [AMF] [H265]<Id: 5> Static:
22:32:03.554: [AMF] [H265]<Id: 5> Usage: Transcoding
22:32:03.554: [AMF] [H265]<Id: 5> Quality Preset: Quality
22:32:03.554: [AMF] [H265]<Id: 5> Profile: Main 4.1
22:32:03.554: [AMF] [H265]<Id: 5> Tier: Main
22:32:03.554: [AMF] [H265]<Id: 5> Coding Type: Automatic
22:32:03.554: [AMF] [H265]<Id: 5> Max. Reference Frames: 1
22:32:03.554: [AMF] [H265]<Id: 5> Max. Long-Term Reference Frames: 0
22:32:03.554: [AMF] [H265]<Id: 5> Rate Control:
22:32:03.554: [AMF] [H265]<Id: 5> Method: Constant Bitrate
22:32:03.554: [AMF] [H265]<Id: 5> Pre-Pass Mode: Enabled
22:32:03.554: [AMF] [H265]<Id: 5> QP:
22:32:03.554: [AMF] [H265]<Id: 5> Ranges:
22:32:03.554: [AMF] [H265]<Id: 5> I-Frame: 18 - 51
22:32:03.554: [AMF] [H265]<Id: 5> P-Frame: 18 - 51
22:32:03.554: [AMF] [H265]<Id: 5> Fixed:
22:32:03.554: [AMF] [H265]<Id: 5> I-Frame: 26
22:32:03.554: [AMF] [H265]<Id: 5> P-Frame: 26
22:32:03.554: [AMF] [H265]<Id: 5> Bitrate:
22:32:03.554: [AMF] [H265]<Id: 5> Target: 15000000 bit/s
22:32:03.554: [AMF] [H265]<Id: 5> Peak: 15000000 bit/s
22:32:03.554: [AMF] [H265]<Id: 5> Flags:
22:32:03.554: [AMF] [H265]<Id: 5> Filler Data: Enabled
22:32:03.554: [AMF] [H265]<Id: 5> Frame Skipping: Disabled
22:32:03.554: [AMF] [H265]<Id: 5> Period: 0 Frames
22:32:03.554: [AMF] [H265]<Id: 5> Behaviour: Skip every Nth frame
22:32:03.554: [AMF] [H265]<Id: 5> Variance Based Adaptive Quantization: Disabled
22:32:03.554: [AMF] [H265]<Id: 5> Enforce Hypothetical Reference Decoder: Enabled
22:32:03.554: [AMF] [H265]<Id: 5> Video Buffering Verfier:
22:32:03.554: [AMF] [H265]<Id: 5> Buffer Size: 20000000 bits
22:32:03.554: [AMF] [H265]<Id: 5> Initial Fullness: 100 %
22:32:03.555: [AMF] [H265]<Id: 5> Max. Access Unit Size: 0
22:32:03.555: [AMF] [H265]<Id: 5> Picture Control:
22:32:03.555: [AMF] [H265]<Id: 5> Period:
22:32:03.555: [AMF] [H265]<Id: 5> IDR: 2 GOPs
22:32:03.555: [AMF] [H265]<Id: 5> I: 0 Frames
22:32:03.555: [AMF] [H265]<Id: 5> P: 0 Frames
22:32:03.555: [AMF] [H265]<Id: 5> B: 0 Frames
22:32:03.555: [AMF] [H265]<Id: 5> GOP:
22:32:03.555: [AMF] [H265]<Id: 5> Type: Fixed
22:32:03.555: [AMF] [H265]<Id: 5> Size: 60
22:32:03.555: [AMF] [H265]<Id: 5> Size Range: 0 - 16
22:32:03.555: [AMF] [H265]<Id: 5> Alignment: Enabled
22:32:03.555: [AMF] [H265]<Id: 5> Deblocking Filter: Enabled
22:32:03.555: [AMF] [H265]<Id: 5> Motion Estimation: Quarter, Half
22:32:03.555: [AMF] [H265]<Id: 5> Experimental:
22:32:03.555: [AMF] [H265]<Id: 5> Input Queue: 16
22:32:03.555: ---------------------------------
22:32:03.555: [FFmpeg aac encoder: 'Track1'] bitrate: 320, channels: 2, channel_layout: 3
22:32:03.555:
22:32:03.566: ==== Recording Start ===============================================
22:32:03.566: [ffmpeg muxer: 'adv_file_output'] Writing file 'C:/Users/Justin/Videos/Captures/The Sims 4/2018-05-19 22-32-03.flv'...
22:32:03.739: [AMF] <Id: 5> Initial Frame Latency is 121672921 nanoseconds.
22:32:04.745: [ffmpeg muxer: 'adv_file_output'] os_process_pipe_write for packet data failed
22:32:04.747: [ffmpeg muxer: 'adv_file_output'] Output of file 'C:/Users/Justin/Videos/Captures/The Sims 4/2018-05-19 22-32-03.flv' stopped
22:32:04.747: Output 'adv_file_output': stopping
22:32:04.747: Output 'adv_file_output': Total frames output: 1
22:32:04.747: Output 'adv_file_output': Total drawn frames: 71
22:32:04.747: ==== Recording Stop ================================================

 

[thewatcheruatu]

Oh wait. I guess I lied about something in the title--the H264 encoder works. Apparently, I can edit the post title, so I just did that!

Anyway, I guess I can live with that. I'd still like to know what the issue is with H265, though, if somebody can venture a guess.

Also, does anybody have a clue as to why Hitfilm Express doesn't seem to know what to do with an MP4 file that has been remuxed from MKV?