gas-preprocessor | Perl script that implements a subset of the GNU

by yuvi Perl Version: Current License: No License

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kandi X-RAY | gas-preprocessor Summary

gas-preprocessor is a Perl library typically used in Hardware applications. gas-preprocessor has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

To configure ffmpeg for the iPhone 3gs and iPod touch 3g:. ./configure --enable-cross-compile --arch=arm --target-os=darwin --cc='/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -arch armv7' --sysroot=/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.0.sdk --cpu=cortex-a8 --enable-pic.

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Support

gas-preprocessor has a low active ecosystem.

It has 210 star(s) with 271 fork(s). There are 17 watchers for this library.

It had no major release in the last 6 months.

There are 14 open issues and 5 have been closed. On average issues are closed in 22 days. There are 2 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of gas-preprocessor is current.

Quality

gas-preprocessor has 0 bugs and 0 code smells.

Security

gas-preprocessor has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

gas-preprocessor code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

gas-preprocessor 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

gas-preprocessor releases are not available. You will need to build from source code and install.

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gas-preprocessor Key Features

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gas-preprocessor Examples and Code Snippets

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Community Discussions

Trending Discussions on gas-preprocessor

FFmpegKit Multiple Overlay Filters Causing Memory Error - Flutter (Only for iOS)

Generated ffmpeg video seems to be not a real video file

ffmpeg seems to output a video with a wrong codec?

QUESTION

FFmpegKit Multiple Overlay Filters Causing Memory Error - Flutter (Only for iOS)

Asked 2022-Mar-20 at 00:13

I need to put overlay images to a video. It is working on Android without problem. But on iOS platform, if I try 23-24 overlay images, it is working correctly. If I try it with 30+ images, it gives memory allocation error.

Error while filtering: Cannot allocate memory

Failed to inject frame into filter network: Cannot allocate memory

Every overlay image is around 50 kb Video is around 250 MB I tried with smaller images, so I can use 40+ images without problem, so it is not related with counts, it is related with file size. I think there is a limit like 1MB for complex filter streams.

I tried lots of thinks but no luck.. I have two questions:

Is my ffmpeg command correct?
Can you suggest me any improvements, alternatives?

Update: What am I trying to do?

I'm trying to make burned subtitled video. But I also need to support emoji too. So I figured out it like these steps:

Create all subtitle items as .png images.
Overlay these images to video with correct timing.

FFmpeg Command:

...

ANSWER

Answered 2022-Mar-20 at 00:13

What you are experiencing is the nature of large filtergraphs. Every link between filters requires a frame buffer (at least 6 MB) and filtering operation itself may require additional memory space. So, it must use up your iDevice's memory (which must be smaller than the Androids).

So, the solution must be the one which minimizes the number of filters, and you can do that by using the concat demuxer so all your images originates from one (virtual) source, and use overlay with more complex enable option.

png_list.txt

Source https://stackoverflow.com/questions/71540219

QUESTION

Generated ffmpeg video seems to be not a real video file

Asked 2020-Sep-18 at 17:03

I try to create a video with ffmpeg and save it to the device with gallery_saver package for Flutter.

The ffmpeg command works well and the video is created. But GallerySaver does not save it. As result I get no error, but a false boolean for the success argument.

This is the ffmpeg output. Is this a valid video mp4 file?

...

ANSWER

Answered 2020-Sep-18 at 17:03

Output is only 5 frames

Make the video and add the audio in the same command. You can loop the images so it makes a proper length in relation to the audio:

Source https://stackoverflow.com/questions/63957441

QUESTION

ffmpeg seems to output a video with a wrong codec?

Asked 2020-Sep-12 at 09:39

I´m using ffmpeg with flutter and I create a video from a lot of images. The problem: ffmpeg seems to not create a video with a right codec or something else.... please check my description below for concrete informations.

First the code parts:

Creating video from images

-r $settings_fps -i $tempPath/img%04d.jpg -vcodec libx264 -y -an -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" -shortest $tempPath/$videoFileName.mp4

Adding audio to the created video

-i ${finalSong.path} -i $videoPath -c:a aac -shortest $tempPath/$newVideoFileName.mp4

This is my video output from console on creating this video:

...

ANSWER

Answered 2020-Sep-12 at 09:39

Videos for web playback usually require chroma sampling to be 4:2:0. FFmpeg, by default, will try to preserve the source sampling scheme, so your output is 4:2:2 (see yuvj422p in the output stream).

Use for step 1,

-r $settings_fps -i $tempPath/img%04d.jpg -vcodec libx264 -y -an -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" -pix_fmt yuv420p $tempPath/$videoFileName.mp4

And in step 2, avoid re-encoding video

-i ${finalSong.path} -i $videoPath -c:v copy -c:a aac -shortest $tempPath/$newVideoFileName.mp4

Source https://stackoverflow.com/questions/63858558

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

Vulnerabilities

No vulnerabilities reported

Install gas-preprocessor

You can download it from GitHub.

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