Re: ffmpeg with nvenc

[Michael Cronenworth]

On 11/03/2017 08:57 AM, Michael Cronenworth wrote:

I thought it might be the pixel format, too, but all of my videos are yuv420p.

The 750 Ti is a GM107 chip. Maxwell gen 1. It should work. 


Had some spare time to look at this again and found out what I did wrong.

My custom driver package does not auto-load the nvidia-uvm module nor create device 
nodes for /dev/nvidia-uvm or /dev/nvidia-vm-tools so after loading the module and 
creating the nodes the encoder starts working.

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Re: ffmpeg with nvenc

[Michael Cronenworth]

On 11/02/2017 03:34 PM, Nicolas Chauvet wrote:

So it's might be an issue with your input stream. Can you run
mediainfo on it ? or change the input ?

If your device is based on kepler, you should be able to do YUV 4:2:0
8bit at 4096x4096 at max.
according tohttps://developer.nvidia.com/nvidia-video-codec-sdk


I thought it might be the pixel format, too, but all of my videos are yuv420p.

The 750 Ti is a GM107 chip. Maxwell gen 1. It should work.
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Re: ffmpeg with nvenc

[Nicolas Chauvet]

2017-11-02 17:10 GMT+01:00 Michael Cronenworth :
> On 10/31/2017 02:29 AM, Leigh Scott wrote:
>>
>> If your using 375.66 it is too old to work with ffmpeg (read the
>> depshttps://developer.nvidia.com/nvidia-video-codec-sdk)
>>
>>
>>
>> I ran your command in F28 using ffmpeg-3.4 and nvidia-387.22 and it works.
>
>
> I was using 384.90. I've upgraded to 387.22, but it still fails in the same
> way.
So it's might be an issue with your input stream. Can you run
mediainfo on it ? or change the input ?

If your device is based on kepler, you should be able to do YUV 4:2:0
8bit at 4096x4096 at max.
according to https://developer.nvidia.com/nvidia-video-codec-sdk



-- 
-

Nicolas (kwizart)
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Re: ffmpeg with nvenc

[Michael Cronenworth]

On 10/31/2017 02:29 AM, Leigh Scott wrote:

If your using 375.66 it is too old to work with ffmpeg (read the 
depshttps://developer.nvidia.com/nvidia-video-codec-sdk)



I ran your command in F28 using ffmpeg-3.4 and nvidia-387.22 and it works.


I was using 384.90. I've upgraded to 387.22, but it still fails in the same way.
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Re: ffmpeg with nvenc

[Leigh Scott]

If your using 375.66 it is too old to work with ffmpeg (read the deps 
https://developer.nvidia.com/nvidia-video-codec-sdk)



I ran your command in F28 using ffmpeg-3.4 and nvidia-387.22 and it works.


Loaded lib: libcuda.so.1
Loaded sym: cuInit
Loaded sym: cuDeviceGetCount
Loaded sym: cuDeviceGet
Loaded sym: cuDeviceGetName
Loaded sym: cuDeviceComputeCapability
Loaded sym: cuCtxCreate_v2
Loaded sym: cuCtxPushCurrent_v2
Loaded sym: cuCtxPopCurrent_v2
Loaded sym: cuCtxDestroy_v2
Loaded sym: cuMemAlloc_v2
Loaded sym: cuMemFree_v2
Loaded sym: cuMemcpy2D_v2
Loaded sym: cuGetErrorName
Loaded sym: cuGetErrorString
Loaded lib: libnvidia-encode.so.1
Loaded sym: NvEncodeAPICreateInstance
Loaded sym: NvEncodeAPIGetMaxSupportedVersion
[h264_nvenc @ 0x555bcae63b60] Loaded Nvenc version 8.1
[h264_nvenc @ 0x555bcae63b60] Nvenc initialized successfully
[h264_nvenc @ 0x555bcae63b60] 1 CUDA capable devices found
[h264_nvenc @ 0x555bcae63b60] [ GPU #0 - < GeForce GTX 660 > has Compute SM 3.0 
]
[h264_nvenc @ 0x555bcae63b60] supports NVENC

frame=61303 fps=182 q=20.0 Lsize=  756139kB time=00:42:36.80 
bitrate=2422.7kbits/s speed=7.58x
video:635295kB audio:119852kB subtitle:0kB other streams:0kB global headers:0kB 
muxing overhead: 0.131376%
Input file #0 (video.mkv):
  Input stream #0:0 (video): 61303 packets read (786332798 bytes); 61303 frames 
decoded; 
  Input stream #0:1 (audio): 79901 packets read (122727936 bytes); 
  Total: 141204 packets (909060734 bytes) demuxed
Output file #0 (test.mkv):
  Output stream #0:0 (video): 61303 frames encoded; 61303 packets muxed 
(650542493 bytes); 
  Output stream #0:1 (audio): 79901 packets muxed (122727936 bytes); 
  Total: 141204 packets (773270429 bytes) muxed
61303 frames successfully decoded, 0 decoding errors
[AVIOContext @ 0x55ef0f3e9b40] Statistics: 996 seeks, 3817 writeouts
[h264_nvenc @ 0x55ef0f2f23a0] Nvenc unloaded
[AVIOContext @ 0x55ef0f2d26c0] Statistics: 909609443 bytes read, 1 seeks
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Re: ffmpeg with nvenc

[Michael Cronenworth]

On 10/18/2017 12:59 AM, Nicolas Chauvet wrote:

You need xorg-x11-drv-nvidia-cuda and probably the version in
rpmfusion-nonfree-updates-testing.


As my log output displays I have the CUDA driver installed and ffmpeg is loading it. 
Yes, I am using version 384.90.

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Re: ffmpeg with nvenc

[Nicolas Chauvet]

2017-10-18 1:26 GMT+02:00 Michael Cronenworth :
> Has anyone had success with encoding using NVENC?
>
> ffmpeg-3.3.4-1.fc26.x86_64
> GeForce 750 Ti
>
> When I try:
> $ ffmpeg -i video.mkv -c:v h264_nvenc -profile:v high -c:a copy -v:profile
> trace test.mkv

You need xorg-x11-drv-nvidia-cuda and probably the version in
rpmfusion-nonfree-updates-testing.
https://trac.ffmpeg.org/wiki/HWAccelIntro#NVENC
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