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Daniel Verkamp 11a94b98a8 crosvm bindgen: regenerate with missing_safety_doc 
Regenerate all of the automated bindgen bindings by running
tools/bindgen-all-the-things after commit 54311a8da9 ("crosvm bindgen:
Allow missing_safety_doc").

BUG=b:157245930
BUG=chromium:908640
TEST=tools/presubmit --all

Change-Id: I334f2ddc071acbf634f0d771d88650ee348cd5a0
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4025271
Reviewed-by: Zihan Chen <zihanchen@google.com>
Reviewed-by: Clarissa Garvey <clarissagarvey@chromium.org>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
2022-11-15 20:43:50 +00:00
..
src crosvm bindgen: regenerate with missing_safety_doc 2022-11-15 20:43:50 +00:00
bindgen.sh media/ffmpeg: only show VERSIONS notice on change 2022-09-14 18:01:56 +00:00
build.rs health-check: enforce blank line after copyright 2022-09-13 22:24:35 +00:00
Cargo.toml media: ffmpeg: Convert SwConverter to a AvFrame-based API. 2022-09-29 09:47:01 +00:00
README.md media: ffmpeg: upgrade to ffmpeg 5.0 libraries 2022-08-23 01:47:48 +00:00
VERSIONS media: ffmpeg: upgrade to ffmpeg 5.0 libraries 2022-08-23 01:47:48 +00:00

README.md

FFmpeg wrapper

This is a minimal FFmpeg 5.0 wrapper for use with the virtio-video device, allowing to run a virtual video device backed by software decoding or encoding. This is useful for development and testing in situations where no supported video acceleration is available on the host.

Although several FFmpeg binding crates exist, most of them are not able to link against the system FFmpeg, and the only one that does is released under a software license that makes our lawyers nervous. Also they all run bindgen at build time, which is not possible to do under the Chrome OS build system and would require to patch the crate with fully generated bindings.

So taking this in consideration, as well as the extra work that it is to depend on external Rust crates in Chrome OS, it is preferable to add our own simple bindings here that cover just the parts of FFmpeg that we need.

This crate has minimal dependencies ; on the FFmpeg side, it just uses libavcodec, libavutil and libswscale.

The bindings can be updated using the bindgen.sh script. A few elements that bindgen cannot generate because they are behind C macros are re-defined in avutil.rs and error.rs, as well as tests to ensure their correctness.

And that's about it.