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Less Bitrate

I updated my nvidia driver and plays tv. Now i only have a max bitrate of 16000 kBit/s.

Before i had ca 30000 kBit/s.


Settings:

1080p, 60fps, 50Mb/s


Didn't changed anything.


2 people have this problem

This happens with me too

 +1 - there is something going on here. I filed this as ticket #48604. I'm currently using "GeForce Game Ready Driver" versions 375.95, released 11/17/2016. I have not tried rolling back to an older driver, as that's not really a tractable solution...


If I select any bitrate 20 Mbps or higher, the resulting video is always around 16 Mbps. This is visible in various ways:

  1. Play the video in VLC, hit control i, select the 'statistics' tab, look at "input bitrate". These are variable-frame-rate clips, so it fluctuates a bit. Clicking the disclosure triangle to reveal the graph shows that it's pretty consistent @ 16 Mbps.

    kIV3cKkwRY1Lt73fSntwW1wE1rwCdtusmw.PNG

  2. Using Windows, view the file location in 'details' view with the 'data rate' column enabled:

    j8I_DFZlzADOwXFofLCrbDXMqlntZ9MHBQ.PNG

  3. Using ffprobe (part of ffmpeg) - note that the comment inserted by the plays.tv encoder indicates that the bitrate is set to 30, yet the actual bitrate reported by ffprobe is 16525 kb/s:

    [/D/plays.tv/Overwatch]$ ffprobe -hide_banner 2016_11_26_16_33_54-ses.mp4
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '2016_11_26_16_33_54-ses.mp4':
      Metadata:
      major_brand  : mp42
      minor_version  : 0
      compatible_brands: mp41isom
      creation_time  : 2016-11-27 00:33:54
      title  : Overwatch
      artist  : Plays.tv client r118416 running on Windows 6.3 Build 9600
      comment  : Encoder: NVIDIA NVENC / Vendor: 0x10DE / Device: 0x100A / Bitrate: 30 Mbps / Framerate: 60 / Avg. enc. time: 0.6682 ms (1496.51 FPS) / HP: 1 Flags: 0x00022702
      Duration: 00:12:37.31, start: 0.000000, bitrate: 16525 kb/s
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1728x1080 [SAR 1:1 DAR 8:5], 16328 kb/s, 58.22 fps, 58 tbr, 60k tbn, 120 tbc (default)
      Metadata:
      creation_time  : 2016-11-27 00:33:54
      handler_name  : VideoHandler
      encoder  : AVC Coding
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s (default)
      Metadata:
      creation_time  : 2016-11-27 00:33:54
      handler_name  : SoundHandler

Do you see a drastic reduction in quality of the video?

Where are you seeing these caps on the video quality?

The Bitrate from the recorded Videos is now lower if i capture ingame Videos. Same settings, nothing changed. Decreased from 30k to 15k kBit/s.

 

So you updated your Nvidia Driver and now the bitrate on your GPU has been lowered?

What kind of change were you expecting to see?


I'm afraid I don't quite understand the issue. My apologies.

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