Comments (2)
kevinshieh0225
commented on June 18, 2024
After observing FFmpeg source code, I found that vcam is not capable to support ffmpeg to send in raw data, but is able to use ffplay for display.
ffmpeg define to send in information in fbdev on FFmpeg/fbdev_enc.c, which we can find out that they use mmap to directly operate on fbdev data. vcam can not support mmap because we have to actively manage our double buffer.
On the other hand, ffplay is available to use after #30 patch. But kindly remind that better write in raw data by line and not by pixel. Frequently system call may crash ffplay with segmentation fault.
from vcam.
kevinshieh0225
commented on June 18, 2024
More detail can see hackmd:kevinshieh/vcam
from vcam.
Related Issues (10)
- Warnings raised by Sparse
- The 'vcam' driver appears on Zoom but the output is black. HOT 1
- Enable GitHub Actions
- Problem in `VIDIOC_G/TRY/S_FMT` on `allow_scaling=1` and `allow_cropping=1` HOT 3
- Can't change video manually HOT 1
- Differentiation HOT 4
- Fbset crashes the driver
- Fail to build with Linux v6.5 HOT 1
- `/proc/fbX` not created HOT 3
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from vcam.