ffmpeg-libav-tutorial
libva


ffmpeg-libav-tutorial | libva | |
---|---|---|
10 | 8 | |
10,212 | 679 | |
1.0% | 1.5% | |
5.8 | 5.9 | |
11 days ago | 3 months ago | |
C | C | |
BSD 3-clause "New" or "Revised" License | GNU General Public License v3.0 or later |
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ffmpeg-libav-tutorial
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The FFmpeg Tutorial
The FFmpeg libraries are possibly the worst thing I have ever worked with in my life. I have never been more afraid to use a library than this one. This tutorial is very outdated, eg. `AVPicture`, which is used throughout, is completely deprecated and removed from the library, so you will simply encounter linker errors trying to follow this tutorial.
FFmpeg libraries randomly break themselves, so if you find an answer from a few years ago, chances are it's useless. Want to free an AVPacket? `av_free_packet` is deprecated,. You can use `av_packet_unref` (but there's _also_ a function named `av_packet_free` that doesn't do quite the same thing).
Most questions on Stack Overflow or related platforms have no replies, the library has literally zero documentation, it has very little error handling, which means if you're a bad C developer like me you are required to recompile FFmpeg with debugging information unstripped so you can trace segfaults in gdb.
https://github.com/leandromoreira/ffmpeg-libav-tutorial/ is a better and more up-to-date tutorial than this one.
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Error when I install KShare
I found this . I think you need an older version of ffmpeg to use the program, try to write it under the AUR to see if the mantainer is still active and knows the problem.
- Ask HN: How can I learn about video encoding, h.264, ffmpeg, etc.
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All the giant companies used ffmpeg
I think you're supposed to read the header files? I have no idea how people write ffmpeg stuff. The only good tutorial I've seen is: https://github.com/leandromoreira/ffmpeg-libav-tutorial
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A simple X11+SDL2 animated wallpaper setter and video player
Much of it I learned from An ffmpeg and SDL Tutorial (outdated, but the core idea persists), and from ffmpeg-libav-tutorial.
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super quick FFmpeg and libav tutorial
https://github.com/leandromoreira/ffmpeg-libav-tutorial#learn-ffmpeg-libav-the-hard-way
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FFmpeg + WebAssembly
If you are not familiar with libav, ffmpeg-libav-tutorial is a great introduction.
- FFmpeg as a Library
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How to encode using c++ with constant fps?
Try this tutorial: https://github.com/leandromoreira/ffmpeg-libav-tutorial
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where do I start? Linux embedded development; SoC's. CSI and DSI MIPI
Btw, if you want to encode anything higher than 1080p60 using the Videocore VI, you'll need to use an external library like ffmpeg. There is a good tutorial for ffmpeg too - https://github.com/leandromoreira/ffmpeg-libav-tutorial . This should teach you how to encode the raw video stream you get from the camera into a codec of your choice.
libva
- Trying to enable the D3D12 GPU Video acceleration in the Windows (11) Subsystem for Linux.
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ASRock Intel Arc A380 Challenger ITX 6GB OC
Intel's docs seem outdated (version 2.13). Version 2.14: Add av1 encode interfaces
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Installing intel-media-driver
Stating that libva (https://github.com/intel/libva) version 2.10.0 is already installed on my machine. I think I didnt install it, seems like debian ships with it preinstalled?
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[Intel to AMD] just realised that gnome installed Intel vaapi drivers from rpm-fusion not AMD.
Hey, un-wanted fun fact? Intel actually develops the VA-API specification.
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Trying to understand the video stack
To understand the Linux video stack see slides #114 and #178 from https://bootlin.com/doc/training/graphics/graphics-slides.pdf and https://01.org/linuxmedia and https://gstreamer.freedesktop.org/documentation/application-development/introduction/gstreamer.html?gi-language=c
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Is the hardware transocding working?
Which appears to be VAProfileJPEGBaseline? ( https://github.com/intel/libva/blob/master/va/va.h#L486 )
- Libva (vaapi) 2.11.0 released with support for LibVA Protected Content API
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Hardware video acceleration now available in google chrome 88
Xwayland requires DRI3, libva supports only DRI2. Under native X11 it is not a problem, under Xwayland it is: https://github.com/intel/libva/issues/122
What are some alternatives?
ffmpeg.wasm - FFmpeg for browser, powered by WebAssembly
media-driver - Intel Graphics Media Driver to support hardware decode, encode and video processing.
butterflow-ui - A graphical user interface for butterflow.
oss-fuzz - OSS-Fuzz - continuous fuzzing for open source software.
intel-hybrid-driver
ffprobe-wasm - A Web-based FFProbe. Powered by FFmpeg, Vue and Web Assembly!
ManjaroWSL2 - Manjaro for WSL2 using wsldl
libvorbis - Haskell binding for libvorbis, for decoding Ogg Vorbis audio files
vdpau-va-driver-vp9 - Experimental VP9 codec support for vdpau-va-driver (NVIDIA VDPAU-VAAPI wrapper) and chromium-vaapi
libav-examples - Collection of FFmpeg libav examples.
obs-studio - OBS Studio - Free and open source software for live streaming and screen recording

