// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// See platform2/media_perception/mojom/device_management.mojom for relevant
// comments on data fields.

syntax = "proto2";

package mri;

enum PixelFormat {
  FORMAT_UNKNOWN = 0;
  I420 = 1;
  MJPEG = 2;
}

message VideoStreamParams {
  optional uint32 width_in_pixels = 1;
  optional uint32 height_in_pixels = 2;
  optional float frame_rate_in_frames_per_second = 3;
  optional PixelFormat pixel_format = 4;
}

message VideoDevice {
  optional string id = 1;
  optional string display_name = 2;
  optional string model_id = 3;
  repeated VideoStreamParams supported_configurations = 4;
  optional VideoStreamParams configuration = 5;
  optional bool in_use = 6;
}

message VirtualVideoDevice {
  optional VideoDevice video_device = 1;
}

enum SampleFormat {
  SND_PCM_UNKNOWN_FORMAT = 0;
  SND_PCM_FORMAT_S32_LE = 1;
  SND_PCM_FORMAT_S16_LE = 2;
}

message AudioStreamParams {
  optional float frequency_in_hz = 1;
  optional int32 num_channels =  2;
  optional int32 frame_size = 3;
  optional SampleFormat sample_format = 4;
}

message AudioDevice {
  optional string id = 1;
  optional string display_name = 2;
  repeated AudioStreamParams supported_configurations = 3;
  optional AudioStreamParams configuration = 4;
}

enum DeviceType {
  DEVICE_TYPE_UNKNOWN = 0;
  VIDEO = 1;
  AUDIO = 2;
  VIRTUAL_VIDEO = 3;
}

message DeviceTemplate {
  optional string template_name = 1;
  optional DeviceType device_type = 2;
}