devices/virtio/video/
vda.rs

1// Copyright 2021 The ChromiumOS Authors
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5//! Utility features shared by both the decoder and encoder VDA backends.
6
7use crate::virtio::video::error::VideoError;
8use crate::virtio::video::format::Profile;
9
10/// Transparent convertion from libvda error to VideoError backend failure.
11impl From<libvda::Error> for VideoError {
12    fn from(error: libvda::Error) -> Self {
13        VideoError::BackendFailure(error.into())
14    }
15}
16
17macro_rules! impl_libvda_conversion {
18    ( $( ( $x:ident, $y:ident ) ),* ) => {
19        pub fn from_libvda_profile(p: libvda::Profile) -> Option<Self> {
20            match p {
21                $(libvda::Profile::$x => Some(Self::$y),)*
22                _ => None
23            }
24        }
25
26        #[cfg(feature = "video-encoder")]
27        pub fn to_libvda_profile(self) -> Option<libvda::Profile> {
28            match self {
29                $(Self::$y => Some(libvda::Profile::$x),)*
30                _ => None
31            }
32        }
33    }
34}
35
36impl Profile {
37    impl_libvda_conversion!(
38        (H264ProfileBaseline, H264Baseline),
39        (H264ProfileMain, H264Main),
40        (H264ProfileExtended, H264Extended),
41        (H264ProfileHigh, H264High),
42        (H264ProfileHigh10Profile, H264High10),
43        (H264ProfileHigh422Profile, H264High422),
44        (
45            H264ProfileHigh444PredictiveProfile,
46            H264High444PredictiveProfile
47        ),
48        (H264ProfileScalableBaseline, H264ScalableBaseline),
49        (H264ProfileScalableHigh, H264ScalableHigh),
50        (H264ProfileStereoHigh, H264StereoHigh),
51        (H264ProfileMultiviewHigh, H264MultiviewHigh),
52        (HevcProfileMain, HevcMain),
53        (HevcProfileMain10, HevcMain10),
54        (HevcProfileMainStillPicture, HevcMainStillPicture),
55        (VP8, VP8Profile0),
56        (VP9Profile0, VP9Profile0),
57        (VP9Profile1, VP9Profile1),
58        (VP9Profile2, VP9Profile2),
59        (VP9Profile3, VP9Profile3)
60    );
61}
devices/virtio/video/vda.rs

devices/virtio/video/
vda.rs
