libvpx | Please do not send pull requests

by webmproject C Version: v1.13.0 License: BSD-3-Clause

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

kandi X-RAY | libvpx Summary

libvpx is a C library. libvpx has no bugs, it has a Permissive License and it has medium support. However libvpx has 2 vulnerabilities. You can download it from GitHub, GitLab.

README - 08 March 2021.

Support

Quality

Security

License

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Support

libvpx has a medium active ecosystem.

It has 794 star(s) with 306 fork(s). There are 85 watchers for this library.

It had no major release in the last 6 months.

libvpx has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of libvpx is v1.13.0

Quality

libvpx has no bugs reported.

Security

libvpx has 2 vulnerability issues reported (1 critical, 0 high, 1 medium, 0 low).

License

libvpx is licensed under the BSD-3-Clause License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

libvpx releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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libvpx Key Features

No Key Features are available at this moment for libvpx.

libvpx Examples and Code Snippets

No Code Snippets are available at this moment for libvpx.

Community Discussions

Trending Discussions on libvpx

Passing bytes to ffmpeg in python with io

How do you read a Python Traceback error?

Convert RAW images to BMP format

ffmpeg x11grab to streamable format

missing audio of second video after combining video

"Error Launching Browser" When Running Electron from Cypress

Concatenate YUVs to generate output YUV using FFMPEG

Can't write packet with unknown timestamp av_interleaved_write_frame(): Invalid argument

FFMPEG dropping frames due to color space mismatch

How to get ffprobe metadata as variable to parse in python

QUESTION

Passing bytes to ffmpeg in python with io

Asked 2021-Jun-07 at 23:03

Sorry, new to stackoverflow

Just wondering if it's possible to pass byte data from io.
I'm trying to extract frames from a gif with ffmpeg then use Pillow to resize it.
I know you can extract frames from a gif with Pillow, but sometimes it butchers certain gifs. So I'm using ffmpeg as a fix.
As for why I'd like the gif to be read from memory is because I'm going to change this so gifs from urls will be wrapped in Bytesio instead of saving.
As for why I have the extra Pillow code, I did successfully get it working by passing an actual filename into the ffmpeg command.

...

ANSWER

Answered 2021-Jun-07 at 23:03

For a single image your code is working fine.
It looks like you are missing proc.wait() at the end and that's it.

For multiple images, you may take a look at my post here.
You may simplify the code, for working with images.

I made few changes to your code, to make it more elegant (I think):

You don't need '-vsync', '0' argument.
I replaced '-' with 'pipe:' (I think it's more clear).
You don't need to set bufsize unless you know that the default is too small.
I removed stderr=SP.PIPE, because I wonted to see the FFmpeg log in the console.
I added proc.wait() after proc.communicate.

The code sample starts by building synthetic GIF image file for testing.

Here is the code sample:

Source https://stackoverflow.com/questions/67877611

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:

...

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

Convert RAW images to BMP format

Asked 2021-Jun-03 at 19:32

I received a .raw frame format (here is a sample) which contains the raw pixel values of a frame. And I've been told I can convert it to an image (.bmp or .png) using FFMpeg using following command. However, when trying, it doesn't work.

...

ANSWER

Answered 2021-Jun-03 at 19:32

Updated Answer

Now that we know the correct size and format, we can do the conversion easily with ImageMagick:

Source https://stackoverflow.com/questions/67825295

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) :

...

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 -

...

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:

...

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

Concatenate YUVs to generate output YUV using FFMPEG

Asked 2021-May-26 at 19:05

I have 10 yuv input and each yuv is a frame of WxH (ip0_WxH.yuv, ip1_WxH.yuv, ..., ip9_WxH.yuv)

I need to concatenate all 10 to create a final yuv output with all 10 frames in this.

Option 1:

I used below link to do so. But final yuv output is not proper from frame number 2 onwards. Only first frame looks good. From frame number 2, the buffer address of chroma and luma has may be some wrong indexing and hence the display of the picture is wrong.

Converting more yuv frames to one yuv frame

...

ANSWER

Answered 2021-May-26 at 19:05

Try different yuvformat.

As you are using yuv. So use either yuv422p or yuv420p depends upon your input yuv type.

Try this :

Source https://stackoverflow.com/questions/67699242

QUESTION

Can't write packet with unknown timestamp av_interleaved_write_frame(): Invalid argument

Asked 2021-May-26 at 18:42

I'm trying to convert a .ts file with this output to mkv:

...

ANSWER

Answered 2021-May-02 at 08:14

Try to run with the -ss flag.

Source https://stackoverflow.com/questions/66013483

QUESTION

FFMPEG dropping frames due to color space mismatch

Asked 2021-May-14 at 09:19

I've got two png image sequences with 30 frames each i'm trying to blend together. The problem is that some of the images are in the rgb24 color space while some are in rgba. Blending the two 30-frame animations together causes it to loose frames - the output is only 26 frames long and the two individual strips out-of-synch.

Command used:

...

ANSWER

Answered 2021-May-14 at 09:19

The issue is that the pixel format within each input changes mid-way. This causes the filtergraph to reinitialize and buffered frames get dropped.

Suppress reinitialization and convert to a command pixel format before blending.

ffmpeg -reinit_filter 0 -i a_%04d.png -reinit_filter 0 -i b_%04d.png -filter_complex "[0]format=rgb24[a];[1]format=rgb24[b];[a][b]blend=average" -c:v libvpx -crf 4 -b:v 20M ab.webm

Source https://stackoverflow.com/questions/67524320

QUESTION

How to get ffprobe metadata as variable to parse in python

Asked 2021-Apr-29 at 15:13

When I run ffprobe , I get the standard metadata as below:

...

ANSWER

Answered 2021-Apr-29 at 15:13

You may use shlex.split or put the arguments to FFprobe in a list.

In Windows OS, you can use sp.run(f'ffprobe {video}' ...
In Linux and Mac, Python tries to execute the command as file name with spaces.
For example: 'ffprobe vid.mp4' is considered a single executable command (file name with space).

You may use an arguments list:
sp.run(['ffprobe', f'{video}']...

Or use shlex.split for splitting the shell command to a list:
sp.run(shlex.split(f'ffprobe {video}'))...

For simple parsing FFprobe output in Python:

Execute ffprobe with -of json argument, and get the output in JSON format.
Convert the output string to dictionary using json.loads.

Here is a code sample that reads the output of FFprobe into a dictionary:

Source https://stackoverflow.com/questions/67318354

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

Vulnerabilities

No vulnerabilities reported

Install libvpx

You can download it from GitHub, GitLab.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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