The virtio video decoder device is currently only available under very
drastic conditions: a build linked against libvda (a ChromeOS-only
library that needs the cros chroot to be built and linked against), and
a ChromeOS-flavored Chrome instance running alongside crosvm, so the
browser can provide the video decoding service through Mojo.
This makes the decoder device very difficult to develop on for
non-Chromies, and also for Chromies actually since they will always need
a DUT to test it on.
This patch introduces an alternative decoder backend based on
ffmpeg's libraries that performs decoding on the host's CPU. It supports both
guest pages and virtio objects as target, and can be considered a
reliable and predictable way to test the decoder in any environment.
We introduce our own ffmpeg bindings after a quick state of the art
revealed that the existing ones were all unsuitable, either for
technical or licensing reasons. Doing so is also not a big effort and
does not add any new external crate dependency to crosvm.
BUG=b:169295147
TEST=cargo test --features "video-decoder,ffmpeg" -p devices ffmpeg
TEST=v4l2r's simple_decoder example decodes test-25fps.h264 properly with the
following command:
./simple_decoder test-25fps.h264 /dev/video0 --input_format h264 --save test-25fps.nv12
TEST=ARCVM Android youtube plays videos correctly when the ffmpeg
backend is used.
Change-Id: Ic9c586193f7939f2a3fe59d009c3666585a8bbc7
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3026355
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Alexandre Courbot <acourbot@chromium.org>
Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org>
This provides at least a minimal one-line description to show what each
crate is about.
BUG=None
TEST=tools/cargo-doc
Change-Id: I26732e8c29062e622d5be09bdc120a49d564b9fd
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3630422
Reviewed-by: Dennis Kempin <denniskempin@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
This is a reland of commit 2b85d4d1e5
Diff from the original CL:
* Changed the return value of `main()` in power_monitor/build.rs
* Ran cargo-check with all features enabled
Original change's description:
> github: Minimize dependencies for document generation
>
> Instead of install full dependencies with `install-deps` in GitHub
> action, minimize dependencies because we use GitHub only for document
> generation.
>
> - Passed `CARGO_DOC` environment when running cargo-doc command so we
> can skip unnecessary build flow when we just want to generate API docs.
> - Added a new script `install-docs-deps` to install only doc-related
> dependencies.
>
> BUG=none
> TEST=test on GitHub Action at my personal repository
>
> Change-Id: Ibe988ab43215e285d946812bdd6c1536ae87b50e
> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3578144
> Tested-by: kokoro <noreply+kokoro@google.com>
> Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
> Reviewed-by: Anton Romanov <romanton@google.com>
> Commit-Queue: Keiichi Watanabe <keiichiw@chromium.org>
Bug=none
TEST=cargo check --all-features
Change-Id: I77ee6543910e3fe7f69be48f8f965eda3433d4e6
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3584063
Auto-Submit: Keiichi Watanabe <keiichiw@chromium.org>
Reviewed-by: Dennis Kempin <denniskempin@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Keiichi Watanabe <keiichiw@chromium.org>
This reverts commit 2b85d4d1e5.
Reason for revert: breaks powerd compile
Original change's description:
> github: Minimize dependencies for document generation
>
> Instead of install full dependencies with `install-deps` in GitHub
> action, minimize dependencies because we use GitHub only for document
> generation.
>
> - Passed `CARGO_DOC` environment when running cargo-doc command so we
> can skip unnecessary build flow when we just want to generate API docs.
> - Added a new script `install-docs-deps` to install only doc-related
> dependencies.
>
> BUG=none
> TEST=test on GitHub Action at my personal repository
>
> Change-Id: Ibe988ab43215e285d946812bdd6c1536ae87b50e
> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3578144
> Tested-by: kokoro <noreply+kokoro@google.com>
> Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
> Reviewed-by: Anton Romanov <romanton@google.com>
> Commit-Queue: Keiichi Watanabe <keiichiw@chromium.org>
Bug: none
Change-Id: Ie16b65235490071ac4e69bf3f09af3ba0c766eab
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3581836
Auto-Submit: Junichi Uekawa <uekawa@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Junichi Uekawa <uekawa@chromium.org>
Instead of install full dependencies with `install-deps` in GitHub
action, minimize dependencies because we use GitHub only for document
generation.
- Passed `CARGO_DOC` environment when running cargo-doc command so we
can skip unnecessary build flow when we just want to generate API docs.
- Added a new script `install-docs-deps` to install only doc-related
dependencies.
BUG=none
TEST=test on GitHub Action at my personal repository
Change-Id: Ibe988ab43215e285d946812bdd6c1536ae87b50e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3578144
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Anton Romanov <romanton@google.com>
Commit-Queue: Keiichi Watanabe <keiichiw@chromium.org>
As we are going to introduce more media-related crates, reserve the
"media" folder as a placeholder for them, starting with the existing
libvda.
BUG=b:169295147
BUG=b:214478588
TEST=cargo build --features "video-decoder,video-encoder,libvda"
Change-Id: I1b2ec65cbba8b735db3d19845c504546fa1c64ca
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3565623
Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Alexandre Courbot <acourbot@chromium.org>
