5 releases
0.0.5 | Aug 2, 2024 |
---|---|
0.0.4 | Aug 1, 2023 |
0.0.3 | Jul 26, 2023 |
0.0.2 | May 1, 2023 |
0.0.1 | Apr 28, 2023 |
#8 in Multimedia
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SLoC
Cros-codecs
A lightweight, simple, low-dependency, and hopefully safe crate for hardware-accelerated video decoding and encoding on Linux.
It is developed for use in ChromeOS (particularly crosvm), but has no dependency to ChromeOS and should be usable anywhere.
Current features
- Simple decoder API,
- VAAPI decoder support (using cros-libva) for H.264, H.265, VP8, VP9 and AV1,
- VAAPI encoder support for H.264, VP9 and AV1,
- Stateful V4L2 encoder support.
Planned features
- Stateful V4L2 decoder support,
- Stateless V4L2 decoder support,
- Support for more encoder codecs,
- C API to be used in non-Rust projects.
Non-goals
- Support for systems other than Linux.
Example programs
The ccdec
example program can decode an encoded stream and write the decoded
frames to a file. As such it can be used for testing purposes.
$ cargo build --examples
$ ./target/debug/examples/ccdec --help
Usage: ccdec <input> [--output <output>] --input-format <input-format> [--output-format <output-format>] [--synchronous] [--compute-md5 <compute-md5>]
Simple player using cros-codecs
Positional Arguments:
input input file
Options:
--output output file to write the decoded frames to
--input-format input format to decode from.
--output-format pixel format to decode into. Default: i420
--synchronous whether to decode frames synchronously
--compute-md5 whether to display the MD5 of the decoded stream, and at
which granularity (stream or frame)
--help display usage information
Testing
Fluster can be used for testing, using the ccdec
example program described
above. This branch
contains support for cros-codecs testing. Just make sure the ccdec
binary is
in your PATH
, and run Fluster using one of the ccdec
decoders, e.g.
python fluster.py run -d ccdec-H.264 -ts JVT-AVC_V1
Credits
The majority of the code in the initial commit has been written by Daniel Almeida as a VAAPI backend for crosvm, before being split into this crate.