devices/virtio/video/
error.rs

1// Copyright 2020 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//! Errors that can happen while encoding or decoding.
6
7use remain::sorted;
8use thiserror::Error as ThisError;
9
10use crate::virtio::video::control::CtrlType;
11
12/// An error indicating something went wrong while encoding or decoding.
13/// Unlike `virtio::video::Error`, `VideoError` is not fatal for `Worker`.
14#[sorted]
15#[derive(Debug, ThisError)]
16pub enum VideoError {
17    /// Backend-specific error.
18    #[error("backend failure: {0:#}")]
19    BackendFailure(anyhow::Error),
20    /// Invalid argument.
21    #[error("invalid argument")]
22    InvalidArgument,
23    /// No suitable format is supported.
24    #[error("invalid format")]
25    InvalidFormat,
26    /// Invalid operation.
27    #[error("invalid operation")]
28    InvalidOperation,
29    /// Invalid parameters are specified.
30    #[error("invalid parameter")]
31    InvalidParameter,
32    /// Invalid resource ID is specified.
33    #[error("invalid resource ID {resource_id} for stream {stream_id}")]
34    InvalidResourceId { stream_id: u32, resource_id: u32 },
35    /// Invalid stream ID is specified.
36    #[error("invalid stream ID {0}")]
37    InvalidStreamId(u32),
38    /// Unsupported control type is specified.
39    /// This is only used by the encoder for now, ignore warning if it is compiled out.
40    #[allow(dead_code)]
41    #[error("unsupported control: {0:?}")]
42    UnsupportedControl(CtrlType),
43}
44
45pub type VideoResult<T> = Result<T, VideoError>;
devices/virtio/video/error.rs

devices/virtio/video/
error.rs
