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no hardware transcoding, high cpu usage


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Posted

Hi there, as a test can you try turning off the subtitles? These need to be burned in with transcoding and that could be the reason why. Please see if that makes a difference. Thanks.

whiteguard
Posted (edited)

Actually are you sure decoding of this file is supported? See here for the 1050:

 

https://developer.nvidia.com/video-encode-decode-gpu-support-matrix

 

In the second section for nvdec.

thx for replay 

i tried this clip :The Smurf2 

视频 Title4K HEVC

编码HEVC

配置Main 10

等级153

分辨率3840x2160

长宽比16:9

畸形No

隔行扫描No

帧率23.976

比特率37,820 kbps

Video rangeHDR

Color primariesbt2020

Color spacebt2020nc

Color transfersmpte2084

像素格式yuv420p10le

参考帧1

音频 TitleEnglish TRUEHD 7.1 (Default)

语言English

编码TRUEHD

布局7.1

声道8 ch

采样率48,000 Hz

位深度24 bit

默认Yes

音频 TitleChinese Dolby Digital stereo

语言Chinese

编码AC3

布局stereo

声道2 ch

比特率256 kbps

采样率48,000 Hz

默认No

音频

TitleChinese Dolby Digital 5.1

语言Chinese

编码AC3

布局5.1

声道6 ch

比特率640 kbps

采样率48,000 Hz

默认No

 

 

I trhink the clip should be supported by NVDEC, 

 

i see console tells, sometime emby use NV to decode & encode, sometimes software when i tried to turn subtitle on or off

5d11c04b27648_decode.jpg

U can see that FPS is extremely slow, 

Edited by whiteguard
Posted

Can you attach an ffmpeg log example? thanks.

  • 2 weeks later...
Posted

Right this is still 10-bit 4k hevc which i'm not sure your GPU supports based on my link above. That's why more work is done on the CPU. Does that answer your question?

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