FFV1 | The FFV1 lossless video codec specification | Video Utils library

by FFmpeg Shell Version: draft-ietf-cellar-ffv1-20_v4-17 License: No License

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kandi X-RAY | FFV1 Summary

FFV1 is a Shell library typically used in Video, Video Utils applications. FFV1 has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

This repository manages the development of specification documents for FFV1, a lossless intra-frame video codec. The goals of this specification effort are defined within the charter of the cellar working group of the Internet Engineering Task Force. Information within this repository should be considered in draft form. The most recent official version of the specification for FFV1 versions 0, 1 and 3 may be found at and for FFV1 version 4 at

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Support

FFV1 has a low active ecosystem.

It has 108 star(s) with 35 fork(s). There are 28 watchers for this library.

It had no major release in the last 12 months.

There are 5 open issues and 42 have been closed. On average issues are closed in 85 days. There are 7 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of FFV1 is draft-ietf-cellar-ffv1-20_v4-17

Quality

FFV1 has 0 bugs and 0 code smells.

Security

FFV1 has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

FFV1 code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

FFV1 does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

FFV1 releases are available to install and integrate.

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FFV1 Key Features

No Key Features are available at this moment for FFV1.

FFV1 Examples and Code Snippets

No Code Snippets are available at this moment for FFV1.

Community Discussions

Trending Discussions on FFV1

Windows CMD Batch Script FFmpeg

mlt: image distortion using lossless codec

Puzzled with file descriptor in Bash (ffmpeg video capture)

QUESTION

Windows CMD Batch Script FFmpeg

Asked 2021-Mar-01 at 19:09

I have created a batch file (.bat) that uses FFmpeg to transcode various videos (with *.mov or *.mp4 file name extension) from an input folder to an output folder (with extension *.mkv) as batch process (Windows 10 environment). File names (without extension) from the input folder should be copied to the newly created output file names (that have the new file extension *.mkv).

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ANSWER

Answered 2021-Mar-01 at 19:09

Here's an example showing my suggestions from the comments, with the addition of the file deletion as requested in the comments too. This assumes that ffmpeg returns an errorlevel of 0 upon success, (you don't want to delete them if the processing failed), and that there is an existing directory named output_folder, in the current working directory.

Source https://stackoverflow.com/questions/66419497

QUESTION

mlt: image distortion using lossless codec

Asked 2021-Feb-19 at 02:04

I have two 1920x1080 PNG files, center.png and right.png, which are identical except that the image in right.png is shifted horizontally by 325 pixels.

With mlt XML, I made a two-second long video using the lossless FFV1 format, showing one second of center.png, and then one second of right.png. Here's my file, foo.mlt:

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ANSWER

Answered 2021-Feb-19 at 02:04

"Lossless" is not always lossless. In the case of "lossless/FFV1", the chroma format is 4:2:2 which will cut the chroma resolution in half: https://github.com/mltframework/mlt/blob/master/presets/consumer/avformat/lossless/FFV1 This could be relevant because if format conversion is required, it could cause chroma bleeding on pixels that do not land directly on a chroma sample.

As an experiment, you could try shifting the image by 326 pixels instead of 325 to see if the bleeding still occurs.

There was another question a while back that related to bleeding due to chroma subsampling: Melt composite transition is slightly blending

Source https://stackoverflow.com/questions/66258174

QUESTION

Puzzled with file descriptor in Bash (ffmpeg video capture)

Asked 2020-May-03 at 15:52

I am trying to use file descriptors in Bash and found a problem I cannot solve. I have to read a video stream coming from the standard output of a command executed in a coproc. This piece of code works as expected :

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ANSWER

Answered 2020-May-03 at 15:52

The file descriptor ${COPROC[0]} is valid only for the shell, not for ffmpeg.

So what you need is :

Source https://stackoverflow.com/questions/61575756

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

Vulnerabilities

No vulnerabilities reported

Install FFV1

You can download it from GitHub.

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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