I gang

Need to develop a custom ffmpeg filter in 'C' environment

I have a need for a custom ffmpeg filter.

Basic specifications are as such:

ffmpeg inputVideo1 inputVideo2 outputVideo

The custom filter will focus ONLY on Alpha channel. Nothing else. The filter will progressively run through the entire inputVideo1, frame-by-frame, and duplicate every ALPHA channel pixel from inputVideo1 to inputVideo2.

Essentially the filter is a temporary workaround for another filter that does not retain alpha channel as part of its video processing, so this custom plugin that you need to write is a post-processing video pass that fixes this alpha issue.

Test case with images and explanation of the output can be found here:

[login to view URL]

or looking at the attached pdf document.

A lot of the source code for this project is already written, and can be found in 'vf_overlay.c'

To qualify for this project, you need to have experience working with source code libraries of either libav* or ffmpeg.

Deliverable for this project is a single file source code.

There will be 3 milestones for this project:

1st milestone 30% is created upon commencement of development. Milestone is released after you:

a) install ffmpeg from the sourcecode using latest repo.

b) run through the test-case using your built ffmpeg executable, and produce non transparent background video. (all of this is out of the box ffmpeg functionality)

2nd milestone 40%:

create the source code of the plugin, and produce the desired output based on the attached pdf document. You share this output video with me, and once I approve that the output is correct, I release the milestone.

3rd milestone is 30%:

a) I get the source code from you, I build the ffmpeg source with your created plugin, and verify that the output is per specifications.

b) Your source code must be well documented with inline comments. You also must use best practices for creating logic to copy alpha data from one video to the next, that is, processing a 1 minute in length video cannot take more than several seconds on a powerful PC, but certainly less than a minute.

If successful with this task, we have constant ongoing development, including ffmpeg/libav libraries, conversion, etc.

Evner: C programmering, Algoritme, C++ Programmering

Se mere: need develop membership database web, need develop commerce website, develop custom flv player, basic thing focus testing apllication develop java, develop custom flash video player, develop custom game engine, develop inventory management application using visual basic, need develop iphone application, security need develop web site, custom fields filter posts plugin wordpress, need develop iphone games, develop custom joomla theme bid, build custom isapi filter, develop custom payment module virtuemart, sharepoint develop custom field, cost develop custom database driven net application, zend need develop web site, need develop calendar system

Om arbejdsgiveren:
( 0 bedømmelser ) San Francisco, United States

Projekt ID: #30102710

Tildelt til:


Hi, I have C programming experience of over 25 years. And I worked with ffmpeg and x264 (I used own modified x264 in order to produce hierarchical-P encoded video). I believe that I can help with this project, and I'm Flere

$400 USD in 28 dage
(5 bedømmelser)

6 freelancere byder i gennemsnit $608 timen for dette job

(6 bedømmelser)

Hi there, ★★★ C / C++ Expert ★★★ 6+ Years of Experience ★★★ I've read requirements and ready to develop a custom ffmpeg filter. I have strong grasp on Object-Oriented Programming along with excellent analytical and pr Flere

$750 USD in 7 dage
(8 bedømmelser)

Hello, Thank you for your care. I've just checked your job description carefully. As a AI developer, I have many years experiences of Algorithm and ffmpeg. Please contact me and discuss about your job in chat or call Flere

$500 USD in 7 dage
(4 bedømmelser)

Hi, Sasha I am a professional developer who has B.S degree with over 7 years of experience dealing with Computer Vision, so I believe I am qualified for this job. I have worked on several similar projects(e.g. Backgro Flere

$750 USD in 7 dage
(1 bedømmelse)

Hi, QRrabbit I've seen enough of your project details. I have 10+ yrs experience in C/C++ Programming and others else. I am also expert in FFMpeg library. I can implement your requirements perfectly. If you give me cha Flere

$500 USD in 7 dage
(0 bedømmelser)