NVEnc | High-speed encoding performance experiment by NVENC

by rigaya C++ Version: 7.27 License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | NVEnc Summary

NVEnc is a C++ library. NVEnc has no bugs, it has no vulnerabilities and it has medium support. However NVEnc has a Non-SPDX License. You can download it from GitHub.

High-speed encoding performance experiment by NVENC

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Quality

Security

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Support

NVEnc has a medium active ecosystem.

It has 828 star(s) with 95 fork(s). There are 52 watchers for this library.

There were 2 major release(s) in the last 12 months.

There are 49 open issues and 427 have been closed. On average issues are closed in 10 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of NVEnc is 7.27

Quality

NVEnc has no bugs reported.

Security

NVEnc has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

NVEnc has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

NVEnc releases are available to install and integrate.

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NVEnc Key Features

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NVEnc Examples and Code Snippets

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Community Discussions

Trending Discussions on NVEnc

How do you read a Python Traceback error?

ffmpeg x11grab to streamable format

missing audio of second video after combining video

"Error Launching Browser" When Running Electron from Cypress

Still get error Cannot find a matching stream for unlabeled input pad 1 on filter Parsed_concat_0

Pydub error loading file: Unknown encoder 'pcm_s4le'

ffmpeg "Underestimated required buffer size"

ffmpeg command to copy video config from ffprobe

MPEG4 X264 vs NVENC H264 encoding play compatibility on old devices

FFMPEG Stream to Instagram Via instafeed.me OR YellowDuck

QUESTION

How do you read a Python Traceback error?

Asked 2021-Jun-06 at 10:31

I have run some Python code in Windows 10 and gotten the Traceback error below. Does it mean the string that is supposed to be an int occurs in line 347 of /DeOldify/deoldify/filters.py or line 1943 of /lib/site-packages/PIL/Image.py?

For context, below the traceback error, I've also included the steps that lead to this error (I attempted to colorize a black and white film clip based on the DeOldify Colab https://colab.research.google.com/github/jantic/DeOldify/blob/master/VideoColorizerColab.ipynb but only succeeded at colorizing the first frame as a .jpeg) and the full terminal output.

EDIT: Thanks to @Daweo's response, I discovered the problem was with the arguments I entered into the terminal as indicated by "", line 1. The correct command should have been:
video_path = colorizer.colorize_from_file_name(file_name='my_video.mp4', render_factor=render_factor)
Also, the code for colorizing a photograph is from https://colab.research.google.com/github/jantic/DeOldify/blob/master/ImageColorizerColab.ipynb

The error:

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ANSWER

Answered 2021-May-31 at 07:59

Does it mean the string that is supposed to be an int occurs in line 347 of /DeOldify/deoldify/filters.py or line 1943 of /lib/site-packages/PIL/Image.py

This imply something in filters.py is responsbile for such usage of something from Image.py that raised TypeError.

Consider simple example let zerodiv.py content be:

Source https://stackoverflow.com/questions/67769750

QUESTION

ffmpeg x11grab to streamable format

Asked 2021-Jun-02 at 03:01

2 FFMPEG process

(1) generating a ffmpeg x11grab to a .mp4 (2) take the .mp4 and restream it simultaneously to multiple rtmp endpoints

ISSUE the generated file in (1) have this error "moov atom not found"

This is the command that generate (1) :

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ANSWER

Answered 2021-Jun-02 at 03:01

With those changes, I'm able to acheive 3 to 4 stable delay ;)

LINE 79 of

https://github.com/OpenVidu/openvidu/blob/master/openvidu-server/docker/openvidu-recording/scripts/composed.sh

I REPLACED

Source https://stackoverflow.com/questions/66837454

QUESTION

missing audio of second video after combining video

Asked 2021-May-27 at 21:54

I am trying to add xfade filter and the command is working but audio of second video is missing in output video.

command is -

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ANSWER

Answered 2021-May-27 at 21:54

You didn't tell ffmpeg what to do with the audio so it just picked the audio from the first input (see stream selection).

Because you are using xfade you probably want to use acrossfade as shown in Merging multiple video files with ffmpeg and xfade filter:

Source https://stackoverflow.com/questions/67696840

QUESTION

"Error Launching Browser" When Running Electron from Cypress

Asked 2021-May-27 at 15:14

I am getting a the following error while trying to launch electron from Cypress:

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ANSWER

Answered 2021-May-27 at 15:14

It because of policy settings on your computer that may cause issues, need to disable proxy policies to handle with admin access or else run a script with a non-admin user. Refer more

Source https://stackoverflow.com/questions/67695639

QUESTION

Still get error Cannot find a matching stream for unlabeled input pad 1 on filter Parsed_concat_0

Asked 2021-Apr-16 at 09:13

Though I hav a=0 I still get the message error above when mixing video with no sound with a sound:

...

ANSWER

Answered 2021-Apr-16 at 09:13

To combine a video stream with an audio stream, you don't need the concat filter. You can simply just map the streams and copy them.

"ffmpeg.exe" -i "demo.mp4" -i "music.mp4" -map 0:v -map 1:a -c copy "demo_music.mp4"

In your case, the audio is longer than the video so the video will effectively "freeze" after it's finished playing.

Source https://stackoverflow.com/questions/67120192

QUESTION

Pydub error loading file: Unknown encoder 'pcm_s4le'

Asked 2021-Apr-13 at 08:55

I want to load my audio into python so that I can cut parts of it together and then resave as a shorter file. Pydub is in theory perfect for this.

...

ANSWER

Answered 2021-Apr-13 at 08:31

Digging around with other libraries, I found this link which highlights the differnt methods for looking at the audio.

The soundfile demo shows how to identify the encoding using these lines:

Source https://stackoverflow.com/questions/67069960

QUESTION

ffmpeg "Underestimated required buffer size"

Asked 2021-Apr-10 at 13:16

I'm seeing this error on some Windows machine when converting an 8K png stream to ProRes 4444 with ffmpeg. The command looks like

ffmpeg -f image2pipe -framerate 30000/1001 -i - -c:v prores_ks -y output.mov

And the output

ffmpeg version git-2020-06-17-0b3bd00 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 9.3.1 (GCC) 20200523
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf libavutil 56. 55.100 / 56. 55.100 libavcodec 58. 92.100 / 58. 92.100 libavformat 58. 46.101 / 58. 46.101 libavdevice 58. 11.100 / 58. 11.100 libavfilter 7. 86.100 / 7. 86.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 [image2pipe @ 000002245a96da40] Stream #0: not enough frames to estimate rate; consider increasing probesize Input #0, image2pipe, from 'pipe:': Duration: N/A, bitrate: N/A Stream #0:0: Video: png, rgba(pc), 7680x3840, 29.97 tbr, 29.97 tbn, 29.97 tbc Stream mapping: Stream #0:0 -> #0:0 (png (native) -> prores (prores_ks)) frame= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbits/s speed=N/A frame= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbits/s speed=N/A frame= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbits/s speed=N/A frame= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbits/s speed=N/A frame= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbits/s speed=N/A [prores_ks @ 000002245aaaf080] Autoselected 4:4:4:4 profile because of the used input colorspace. It can be overridden through -profile option. [prores_ks @ 000002245aaaf700] Autoselected 4:4:4:4 profile because of the used input colorspace. It can be overridden through -profile option. [prores_ks @ 000002245aa1e7c0] Autoselected 4:4:4:4 profile because of the used input colorspace. It can be overridden through -profile option. [prores_ks @ 000002245aa1d580] Autoselected 4:4:4:4 profile because of the used input colorspace. It can be overridden through -profile option. [prores_ks @ 000002245aa1ec40] Autoselected 4:4:4:4 profile because of the used input colorspace. It can be overridden through -profile option. [prores_ks @ 000002245aa1da00] Autoselected 4:4:4:4 profile because of the used input colorspace. It can be overridden through -profile option. [prores_ks @ 000002245aa1f540] Autoselected 4:4:4:4 profile because of the used input colorspace. It can be overridden through -profile option. [prores_ks @ 000002245aa1de80] Autoselected 4:4:4:4 profile because of the used input colorspace. It can be overridden through -profile option. [prores_ks @ 000002245a972b40] Autoselected 4:4:4:4 profile because of the used input colorspace. It can be overridden through -profile option. Output #0, mov, to 'output.mov': Metadata: encoder : Lavf58.46.101 Stream #0:0: Video: prores (prores_ks) (ap4h / 0x68347061), yuva444p10le, 7680x3840, q=2-31, 200 kb/s, 29.97 fps, 30k tbn, 29.97 tbc Metadata: encoder : Lavc58.92.100 prores_ks frame= 1 fps=0.2 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x
frame= 2 fps=0.3 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x frame= 3 fps=0.4 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x frame= 4 fps=0.4 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x frame=
5 fps=0.5 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed=
0x [prores_ks @ 000002245aaaf080] Underestimated required buffer size. Video encoding failed [prores_ks @ 000002245aaaf700] Underestimated required buffer size. [prores_ks @ 000002245aa1e7c0] Underestimated required buffer size. [prores_ks @ 000002245aa1d580] Underestimated required buffer size. [prores_ks @ 000002245aa1ec40] Underestimated required buffer size. [prores_ks @ 000002245aa1da00] Underestimated required buffer size. Conversion failed!

How could I debug this considering I don't have access to the problematic machine (a user does)? Could the "not enough frames to estimate rate; consider increasing probesize" message be related to the problem?

Thanks

Edit: I increased probesize and that warning disappeared, but the conversion keeps failing with the same error message "Underestimated required buffer size". I can now reproduce this on one of my Windows machines.

Edit 2: Not a solution but I found out that this problem is gone if using ffmpeg 4.2.3 and was introduced with 4.3

...

ANSWER

Answered 2021-Apr-10 at 13:16

Since ffmpeg's bug report system does not seem to allow new users (and therefore reports), the only solution I can suggest is avoiding 4.3.x versions and staying in 4.2.3

Update: This is being fixed in new builds of ffmpeg: https://trac.ffmpeg.org/ticket/9173#ticket

Source https://stackoverflow.com/questions/66354605

QUESTION

ffmpeg command to copy video config from ffprobe

Asked 2021-Apr-10 at 00:02

What's the command to convert an MP4 to the output format similar to a video with this ffprobe:

...

ANSWER

Answered 2021-Apr-10 at 00:02

Finally I made it to work.

So to make a MOJO video file for NComputing devices here's the ffmpeg command:

Source https://stackoverflow.com/questions/67028704

QUESTION

MPEG4 X264 vs NVENC H264 encoding play compatibility on old devices

Asked 2021-Mar-28 at 05:02

I always encoding videos on x264, this encoding work well on old devices or mobile phones.
To increase the encoding speed I try to replace encoding method with NVENC H264 with nVidia GPU.

Question 1 : Device combability for play the NVENC H264 is different with x264 ?
Question 2 : Old devices can play NVENC H264 file same as x264 ?

Old devices : (All devices that can play x264) Android 6+, TV Setup box, TV, Google chrome 48+

...

ANSWER

Answered 2021-Mar-28 at 05:02

H264 is a decoder specification, not an encoder specification. To be an h264 encoder, it must produce a stream that is decodable by all h264 decoders.

So, yes the files will still work.

Note however that h264 has profiles and levels. So if a devise doesn’t play a file, it’s because the level or profile is too high.

Source https://stackoverflow.com/questions/66828912

QUESTION

FFMPEG Stream to Instagram Via instafeed.me OR YellowDuck

Asked 2021-Mar-25 at 16:43

I'm trying to do video stream via RTMP to Instagram with FFMPEG

I'm able to do it to facebook and twitter, but instagram is an other beast...

when I create a live broadcast in instafeed or yellowduck I get a stream key

when I do this

...

ANSWER

Answered 2021-Mar-19 at 23:58

Wrap the output in quotes:

Source https://stackoverflow.com/questions/66698335

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install NVEnc

You can download it from GitHub.

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