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  1. Originally Posted by Roph View Post
    Just me, or are those clips not smooth? I checked both 5mbit ones. Especially noticeable in the ripples for example.
    I just read that some media player decoders have trouble with the ffmpeg nvenc HEVC files. Here's the same files encoded with the other main program, Rigaya's NVEncC. They might play back smoother. I included a simple sample command used and log files

    Pascal GTX 1050 NVEenC.exe VBR
    HEVC
    http://files.videohelp.com/u/234095/3kbps.mkv
    http://files.videohelp.com/u/234095/5kbps.mkv
    http://files.videohelp.com/u/234095/8kbps.mkv
    http://files.videohelp.com/u/234095/12kbps.mkv
    http://files.videohelp.com/u/234095/19kbps.mkv
    AVC
    http://files.videohelp.com/u/234095/AVC3kbps.mkv
    http://files.videohelp.com/u/234095/AVC5kbps.mkv
    http://files.videohelp.com/u/234095/AVC8kbps.mkv
    http://files.videohelp.com/u/234095/AVC12kbps.mkv
    http://files.videohelp.com/u/234095/AVC19kbps.mkv

    Sample command and log files
    Code:
    \Users\user\NVEncC>NVEncC.exe --codec h265 --vbr 5000 --audio-copy -i source.mkv -o 5kbps.mkv
    Max B frames are 0 frames.
    NVEnc 3.02 (x64), using NVENC API v7.0
    OS Version     Windows 10 (x64)
    CPU            Intel Core i3-3250 @ 3.50GHz (2C/4T)
    GPU            #0: GeForce GTX 1050 (5 EU) @ 1455 MHz (376.33)
    Input Buffers  CUDA, 32 frames
    Input Info     avcuvid: H.264/AVC, 1920x1080, 50/1 fps
    Vpp Filters    copyDtoD
    Output Info    H.265/HEVC main @ Level auto
                   1920x1080p 1:1 50.000fps (50/1fps)
                   avwriter: hevc => matroska
    Rate Control   VBR
    Bitrate        5000 kbps (Max: 17500 kbps)
    Initial QP     I:20  P:23  B:25
    VBV buf size   auto
    Lookahead      off
    GOP length     500 frames
    B frames       0 frames
    Ref frames     3 frames, LTR: off
    AQ             off
    MV Quality     Q-pel
    CU max / min   32 / 8
    
    
    encoded 2500 frames, 272.06 fps, 4627.64 kbps, 27.58 MB
    encode time 0:00:09 / CPU Usage: 25.90%
    
    frame type IDR    5
    frame type I      5,  avgQP  37.40,  total size   0.33 MB
    frame type P   2495,  avgQP  38.99,  total size  27.25 MB
    
    AVC
    
    C:\Users\user\NVEncC>NVEncC.exe --codec h264 --vbr 5000 --audio-copy -i source.mkv -o AVC5kbps.mkv
    NVEnc 3.02 (x64), using NVENC API v7.0
    OS Version     Windows 10 (x64)
    CPU            Intel Core i3-3250 @ 3.50GHz (2C/4T)
    GPU            #0: GeForce GTX 1050 (5 EU) @ 1455 MHz (376.33)
    Input Buffers  CUDA, 32 frames
    Input Info     avcuvid: H.264/AVC, 1920x1080, 50/1 fps
    Vpp Filters    copyDtoD
    Output Info    H.264/AVC high @ Level auto
                   1920x1080p 1:1 50.000fps (50/1fps)
                   avwriter: h264 => matroska
    Rate Control   VBR
    Bitrate        5000 kbps (Max: 17500 kbps)
    Initial QP     I:20  P:23  B:25
    VBV buf size   auto
    Lookahead      off
    GOP length     500 frames
    B frames       3 frames
    Ref frames     3 frames, LTR: off
    AQ             off
    MV Quality     Q-pel
    CABAC/deblock  cabac / on
    
    
    encoded 2500 frames, 352.81 fps, 4521.00 kbps, 26.95 MB
    encode time 0:00:07 / CPU Usage: 25.69%
    
    frame type IDR    5
    frame type I      5,  avgQP  36.00,  total size   0.47 MB
    frame type P    625,  avgQP  36.57,  total size  20.27 MB
    frame type B   1870,  avgQP  42.96,  total size   6.21 MB
    Edit: Hi easyfab, These are your files with log. I was unable to turn on spatial aq in the AVC encode
    http://files.videohelp.com/u/234095/easyfab.mkv
    http://files.videohelp.com/u/234095/easyfabAVC.mkv
    http://files.videohelp.com/u/234095/easyfab%20log.txt
    Last edited by ezcapper; 31st Dec 2016 at 12:45. Reason: added easyfab files
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  2. thanks for the files,

    Nvencc give better quality than ffmpeg for AVC does it come from ffmpeg only use 1 ref frame for AVC by default ??? you should try with -refs 3 or more to see the difference.

    with ffmpeg hevc_nvenc option -spatial_aq 1 does it's job when you look the grass in parkrun scene.

    There are also more options like -temporal_aq or main10 profile to try.

    you could try this : -vcodec hevc_nvenc -b:v 5000k -profile main10 -preset slow -rc vbr_2pass -2pass 1 -rc-lookahead 32 -spatial_aq 1 -refs 5
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  3. Hi there
    I have a question regarding this subject. I have just purchased a brand new Nvidia RTX card with the intention of converting to H265. This card has Turing built in & is supposedly able to work fast. I have a purchased copy of TMPGenc Video Mastering Works (latest upgrade), & have the settings selected for NVENC in the software set properly (as far as I know?).

    However, when I convert a file that's 25 minutes long with the software it takes 25 minutes in H264, But in H265 the same file threatens to take under 8 HOURS!!!!

    I haven't tried with Handbrake yet, but have done so with the official DVDFab I have, which only takes a few minutes, but it reduces the quality even when set at High Quality.

    I have my doubts about so called support in TMPGenc, & the High Quality setting in DVDFab ain't that great either. I may have to stick with Handbrake for doing things such as this, but I'm very annoyed at the fact that there's software out in the market that make all of these wonderful claims that we pay for, but don't do what they make bold claims about!!!
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  4. Originally Posted by magnu View Post
    Hi there
    However, when I convert a file that's 25 minutes long with the software it takes 25 minutes in H264, But in H265 the same file threatens to take under 8 HOURS!!!!
    Check with the Task Manager whether your GPU is used at all.
    It may be more reliable to do some encoding tests via commandline first, before using some GUI or SW package.
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  5. I checked Task Manager & my GPU was only using 10%, so I found this web page https://forum.videohelp.com/threads/379666-A-budget-Nvidia-card-for-H265-hardware-enco...g?goto=newpost and under Power Management Settings
    I made some changes under both the PC & Nvidia Control Panels. Going to give it another try now.
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  6. Originally Posted by magnu View Post
    I checked Task Manager & my GPU was only using 10%, so I found this web page https://forum.videohelp.com/threads/379666-A-budget-Nvidia-card-for-H265-hardware-enco...g?goto=newpost and under Power Management Settings
    I made some changes under both the PC & Nvidia Control Panels. Going to give it another try now.
    That TGMPEG or whatever tool looks like the classic video conversion payware scam, they're just selling you access to (the free, open source) ffmpeg and x264, x265 etc. Try and get a refund if you can. If you need editing as well as encoding, Shotcut is a great simple editor, and again supports AMD/Nvidia hardware H264/5 encoding.

    Handbrake is free and open source, I don't have an nvidia GPU and refuse to use it for its terrible AAC support though.

    A's Video Converter is a simple and again absolutely free tool to batch convert files to H264/265 with GPU acceleration.

    I recently helped a friend set it up, they were seeing 400+ fps H265 encoding with no CPU usage. I use A's regularly to batch H265 encode with my AMD GPU.
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  7. Originally Posted by Roph View Post
    That TGMPEG or whatever tool looks like the classic video conversion payware scam, they're just selling you access to (the free, open source) ffmpeg and x264, x265 etc. Try and get a refund if you can. If you need editing as well as encoding, Shotcut is a great simple editor, and again supports AMD/Nvidia hardware H264/5 encoding.
    I thought I was going to bust a gut laughing at your silliness.

    Pegasys' software, Video Mastering Works, is not one of the "scams" you are referring to, like the old Imtoo encoders, Pegasys actually licenses x264 and x265 from the developer's and integrates it with their blessings and support, go read the press releases by both parties. The also license the hardware encoders as well.

    As far as Shotcut goes, I like Shotcut a lot, I use it and consider it the best option on Linux but if one is using Windows, as this poster obviously is, Shotcut can't match the commercial products like TMPG VMW.

    You gave this poster horrible advice based on ignorance.
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