// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

syntax = "proto2";

package wc_fuzzer;

message AllowSharedBufferSource {
  // Note: length is capped in the fuzzer to avoid OOM.
  optional uint32 length = 1;
  optional bool shared = 2;

  enum ViewType {
    NONE = 0;
    INT8 = 1;
    UINT32 = 2;
    DATA = 3;
  }
  optional ViewType view_type = 3;
  optional uint32 view_offset = 4;
  optional uint32 view_length = 5;

  // Transfer ArrayBuffer into ctor
  optional bool transfer = 6;
}

message DOMRectInit {
  optional double x = 1;
  optional double y = 2;
  optional double width = 3;
  optional double height = 4;
}

message PlaneLayout {
  optional uint32 offset = 1;
  optional uint32 stride = 2;
}

message VideoFrameCopyToOptions {
  optional DOMRectInit rect = 1;
  repeated PlaneLayout layout = 2;
}

message VideoColorSpaceInit {
  enum VideoColorPrimaries {
    VCP_BT709 = 0;
    VCP_BT470BG = 1;
    VCP_SMPTE170M = 2;
    VCP_BT2020 = 3;
    VCP_SMPTE432 = 4;
  }
  optional VideoColorPrimaries primaries = 1;
  enum VideoTransferCharacteristics {
    VTC_BT709 = 0;
    VTC_SMPTE170M = 1;
    VTC_IEC61966_2_1 = 2;
    VTC_LINEAR = 3;
    VTC_PQ = 4;
    VTC_HLG = 5;
  }
  optional VideoTransferCharacteristics transfer = 2;
  enum VideoMatrixCoefficients {
    VMC_RGB = 0;
    VMC_BT709 = 1;
    VMC_BT470BG = 2;
    VMC_SMPTE170M = 3;
    VMC_BT2020_NCL = 4;
  }
  optional VideoMatrixCoefficients matrix = 3;
  optional bool full_range = 4;
}

message VideoFrameBufferInit {
  enum VideoPixelFormat {
    I420 = 0;
    I420A = 1;
    I444 = 2;
    NV12 = 3;
    RGBA = 4;
    RGBX = 5;
    BGRA = 6;
    BGRX = 7;
  }
  optional VideoPixelFormat format = 1;
  repeated PlaneLayout layout = 2;

  optional int64 timestamp = 3;
  optional uint64 duration = 4;

  optional uint32 coded_width = 5;
  optional uint32 coded_height = 6;

  optional DOMRectInit visible_rect = 7;

  optional uint32 display_width = 8;
  optional uint32 display_height = 9;

  optional VideoColorSpaceInit color_space = 10;
}

message VideoFrameBufferInitInvocation {
  required AllowSharedBufferSource data = 1;
  required VideoFrameBufferInit init = 2;
}

message ConfigureVideoDecoder {
  // String describing codec (e.g. "vp09.00.10.08")
  optional string codec = 1;

  optional bytes description = 2;
}

message ConfigureVideoEncoder {
  // String describing codec (e.g. "vp09.00.10.08")
  optional string codec = 1;

  enum EncoderAccelerationPreference {
    ALLOW = 0;
    DENY = 1;
    REQUIRE = 2;
  }

  enum ScalabilityMode {
    L1T1 = 0;
    L1T2 = 1;
    L1T3 = 2;
  }

  enum LatencyMode {
    QUALITY = 0;
    REALTIME = 1;
  }

  enum ContentHint {
    NONE = 0;
    MOTION = 1;
    DETAIL = 2;
    TEXT = 3;
  }

  enum VideoEncoderBitrateMode {
    CONSTANT = 0;
    VARIABLE = 1;
    QUANTIZER = 2;
  }

  enum AlphaOption {
    KEEP = 0;
    DISCARD = 1;
  }

  optional EncoderAccelerationPreference acceleration = 2;

  optional uint64 bitrate = 3;

  optional double framerate = 4;

  optional uint32 width = 5;

  optional uint32 height = 6;

  optional uint32 display_width = 7;

  optional uint32 display_height = 8;

  optional ScalabilityMode scalability_mode = 9;

  optional VideoEncoderBitrateMode bitrate_mode = 10;

  optional LatencyMode latency_mode = 11;

  optional AlphaOption alpha = 12;

  optional ContentHint content_hint = 13;
}

message ConfigureAudioDecoder {
  // String describing codec (e.g. "opus")
  optional string codec = 1;

  optional uint32 sample_rate = 2;

  optional uint32 number_of_channels = 3;

  optional bytes description = 4;
}

enum AacFormat {
  AAC = 0;
  ADTS = 1;
}

enum BitrateMode {
  VARIABLE = 0;
  CONSTANT = 1;
}

message AacEncoderConfig {
  optional AacFormat format = 1;
}

enum OpusSignal {
  AUTO = 0;
  MUSIC = 1;
  VOICE = 2;
}

enum OpusApplication {
  VOIP = 0;
  AUDIO = 1;
  LOWDELAY = 2;
}

message OpusEncoderConfig {
  optional uint64 frame_duration = 1;

  optional uint32 complexity = 2;

  optional uint32 packetlossperc = 3;

  optional bool useinbandfec = 4;

  optional bool usedtx = 5;

  optional OpusSignal signal = 6;

  optional OpusApplication application = 7;
}

message ConfigureAudioEncoder {
  // String describing codec (e.g. "opus")
  optional string codec = 1;

  optional uint32 sample_rate = 2;

  optional uint32 number_of_channels = 3;

  optional uint64 bitrate = 4;

  optional AacEncoderConfig aac = 5;

  optional OpusEncoderConfig opus = 6;

  optional BitrateMode bitrate_mode = 7;
}

enum EncodedChunkType {
  KEY = 0;
  DELTA = 1;
}

message EncodedVideoChunk {
  optional EncodedChunkType type = 1;

  optional uint64 timestamp = 2;

  optional uint64 duration = 3;

  optional bytes data = 4;
}

message EncodedAudioChunk {
  optional EncodedChunkType type = 1;

  optional uint64 timestamp = 2;

  optional uint64 duration = 3;

  optional bytes data = 4;
}

// Mix of args to VideoFrame constructor.
message VideoFrameBitmapInit {
  optional uint64 timestamp = 1;

  optional uint64 duration = 2;

  optional uint32 bitmap_width = 3;

  optional bytes rgb_bitmap = 4;
}

enum AudioSampleFormat {
  U8 = 0;
  S16 = 1;
  S32 = 2;
  F32 = 3;
  U8_PLANAR = 4;
  S16_PLANAR = 5;
  S32_PLANAR = 6;
  F32_PLANAR = 7;
}

message AudioDataInit {
  optional uint64 timestamp = 1;

  optional uint32 length = 2;

  optional uint32 sample_rate = 3;

  repeated bytes channels = 4;

  required AudioSampleFormat format = 5;

  // Transfer ArrayBuffer into ctor
  optional bool transfer = 6;
}

message EncodeVideo {
  oneof Frames {
    VideoFrameBitmapInit frame = 1;
    VideoFrameBufferInitInvocation frame_from_buffer = 3;
  }
  message EncodeOptionsForAv1 {
    optional uint32 quantizer = 1;
  };
  message EncodeOptionsForVp9 {
    optional uint32 quantizer = 1;
  };
  message EncodeOptions {
    optional bool key_frame = 1;
    optional EncodeOptionsForAv1 av1 = 2;
    optional EncodeOptionsForVp9 vp9 = 3;
  }
  optional EncodeOptions options = 2;
}

message EncodeAudio {
  optional AudioDataInit data = 1;
}

message DecodeVideo {
  optional EncodedVideoChunk chunk = 1;
}

message DecodeAudio {
  optional EncodedAudioChunk chunk = 1;
}

message Flush {
  optional bool wait_for_promise = 1;
}

message Reset {}

message Close {}

message VideoDecoderApiInvocation {
  oneof Api {
    ConfigureVideoDecoder configure = 1;
    DecodeVideo decode = 2;
    Flush flush = 3;
    Reset reset = 4;
    Close close = 5;
  }
}

message VideoDecoderApiInvocationSequence {
  repeated VideoDecoderApiInvocation invocations = 1;
}

message AudioDecoderApiInvocation {
  oneof Api {
    ConfigureAudioDecoder configure = 1;
    DecodeAudio decode = 2;
    Flush flush = 3;
    Reset reset = 4;
    Close close = 5;
  }
}

message AudioDecoderApiInvocationSequence {
  repeated AudioDecoderApiInvocation invocations = 1;
}

message VideoEncoderApiInvocation {
  oneof Api {
    ConfigureVideoEncoder configure = 1;
    EncodeVideo encode = 2;
    Flush flush = 3;
    Reset reset = 4;
    Close close = 5;
  }
}

message VideoEncoderApiInvocationSequence {
  repeated VideoEncoderApiInvocation invocations = 1;
}

message AudioEncoderApiInvocation {
  oneof Api {
    ConfigureAudioEncoder configure = 1;
    EncodeAudio encode = 2;
    Flush flush = 3;
    Reset reset = 4;
    Close close = 5;
  }
}

message AudioEncoderApiInvocationSequence {
  repeated AudioEncoderApiInvocation invocations = 1;
}

message DecodeImage {
  optional uint32 frame_index = 1;
  optional bool complete_frames_only = 2;
}

message DecodeMetadata {}

message SelectTrack {
  required uint32 track_id = 1;
  optional bool selected = 2 [default = true];
}

message ImageDecoderApiInvocation {
  oneof Api {
    DecodeImage decode_image = 1;
    DecodeMetadata decode_metadata = 2 [deprecated = true];
    SelectTrack select_track = 3;
  }
}

message ImageBitmapOptions {
  enum ImageOrientation {
    ORIENTATION_FROM_IMAGE = 0;
    FLIPY = 1;
  }
  enum PremultiplyAlpha {
    PREMULTIPLY_NONE = 0;
    PREMULTIPLY = 1;
    PREMULTIPLY_DEFAULT = 2;
  }
  enum ColorSpaceConversion {
    CS_NONE = 0;
    CS_DEFAULT = 1;
  }
  enum ResizeQuality {
    PIXELATED = 0;
    LOW = 1;
    MEDIUM = 2;
    HIGH = 3;
  }

  optional ImageOrientation image_orientation = 1;
  optional PremultiplyAlpha premultiply_alpha = 2 [deprecated = true];
  optional ColorSpaceConversion color_space_conversion = 3;
  optional uint32 resize_width = 4;
  optional uint32 resize_height = 5;
  optional ResizeQuality resize_quality = 6;
}

message ConfigureImageDecoder {
  required bytes data = 1;
  required string type = 2;
  optional ImageBitmapOptions options = 3;
  optional bool prefer_animation = 4;
}

message ImageDecoderApiInvocationSequence {
  required ConfigureImageDecoder config = 1;
  repeated ImageDecoderApiInvocation invocations = 2;
}

message VideoFrameCopyToInvocation {
  required AllowSharedBufferSource destination = 1;
  optional VideoFrameCopyToOptions options = 2;
}

message VideoFrameCopyToCase {
  // TODO(sandersd): Support other kinds of frames.
  required VideoFrameBufferInitInvocation video_frame = 1;
  // TODO(sandersd): Support multiple concurrent operations, optional waiting,
  // close(), etc.
  required VideoFrameCopyToInvocation copy_to = 2;
}

message AudioDataCopyToOptions {
  required uint32 plane_index = 1;
  optional uint32 frame_offset = 2;
  optional uint32 frame_count = 3;
  optional AudioSampleFormat format = 4;
}

message AudioDataCopyToInvocation {
  required AllowSharedBufferSource destination = 1;
  required AudioDataCopyToOptions options = 2;
}

message AudioDataCopyToCase {
  required AudioDataInit audio_data = 1;
  // TODO(chcunningham): Support multiple concurrent operations, optional
  // waiting, close(), etc.
  required AudioDataCopyToInvocation copy_to = 2;
}