media/mojo/interfaces/media_types.mojom

// Copyright 2014 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.

module media.mojom;

import "ui/mojo/geometry/geometry.mojom";

// See media/base/buffering_state.h for descriptions.
// Kept in sync with media::BufferingState via static_asserts.
enum BufferingState {
  HAVE_NOTHING,
  HAVE_ENOUGH,
};

// See media/base/decode_status.h for descriptions.
// Kept in sync with media::DecodeStatus via static_asserts.
enum DecodeStatus {
  OK,
  ABORTED,
  DECODE_ERROR,
};

// See media/base/audio_decoder_config.h for descriptions.
// Kept in sync with media::AudioCodec via static_asserts.
enum AudioCodec {
  UNKNOWN = 0,
  AAC = 1,
  MP3 = 2,
  PCM = 3,
  Vorbis = 4,
  FLAC = 5,
  AMR_NB = 6,
  AMR_WB = 7,
  PCM_MULAW = 8,
  GSM_MS = 9,
  PCM_S16BE = 10,
  PCM_S24BE = 11,
  Opus = 12,
  EAC3 = 13,
  PCM_ALAW = 14,
  ALAC = 15,
  AC3 = 16,
  MAX = AC3,
};

// See media/base/channel_layout.h for descriptions.
// Kept in sync with media::ChannelLayout via static_asserts.
enum ChannelLayout {
  k_NONE = 0,
  k_UNSUPPORTED = 1,
  k_MONO = 2,
  k_STEREO = 3,
  k_2_1 = 4,
  k_SURROUND = 5,
  k_4_0 = 6,
  k_2_2 = 7,
  k_QUAD = 8,
  k_5_0 = 9,
  k_5_1 = 10,
  k_5_0_BACK = 11,
  k_5_1_BACK = 12,
  k_7_0 = 13,
  k_7_1 = 14,
  k_7_1_WIDE = 15,
  k_STEREO_DOWNMIX = 16,
  k_2POINT1 = 17,
  k_3_1 = 18,
  k_4_1 = 19,
  k_6_0 = 20,
  k_6_0_FRONT = 21,
  k_HEXAGONAL = 22,
  k_6_1 = 23,
  k_6_1_BACK = 24,
  k_6_1_FRONT = 25,
  k_7_0_FRONT = 26,
  k_7_1_WIDE_BACK = 27,
  k_OCTAGONAL = 28,
  k_DISCRETE = 29,
  k_STEREO_AND_KEYBOARD_MIC = 30,
  k_4_1_QUAD_SIDE = 31,
  k_MAX = k_4_1_QUAD_SIDE,
};

// See media/base/sample_format.h for descriptions.
// Kept in sync with media::SampleFormat via static_asserts.
enum SampleFormat {
  UNKNOWN = 0,
  U8,
  S16,
  S32,
  F32,
  PlanarS16,
  PlanarF32,
  PlanarS32,
  S24,
  Max = S24,
};

// See media/base/video_types.h for descriptions.
// Kept in sync with media::VideoPixelFormat via static_asserts.
enum VideoFormat {
  UNKNOWN = 0,
  I420,
  YV12,
  YV16,
  YV12A,
  YV24,
  NV12,
  NV21,
  UYVY,
  YUY2,
  ARGB,
  XRGB,
  RGB24,
  RGB32,
  MJPEG,
  MT21,
  YUV420P9,
  YUV420P10,
  YUV422P9,
  YUV422P10,
  YUV444P9,
  YUV444P10,
  FORMAT_MAX = YUV444P10,
};

// Kept in sync with media::ColorSpace via static_asserts.
enum ColorSpace {
  UNSPECIFIED = 0,
  JPEG = 1,
  HD_REC709 = 2,
  SD_REC601 = 3,
  MAX = SD_REC601,
};

// See media/base/video_decoder_config.h for descriptions.
// Kept in sync with media::VideoCodec via static_asserts.
enum VideoCodec {
  UNKNOWN = 0,
  H264,
  VC1,
  MPEG2,
  MPEG4,
  Theora,
  VP8,
  VP9,
  HEVC,
  Max = HEVC,
};

// See media/base/video_decoder_config.h for descriptions.
// Kept in sync with media::VideoCodecProfile via static_asserts.
enum VideoCodecProfile {
  VIDEO_CODEC_PROFILE_UNKNOWN = -1,
  VIDEO_CODEC_PROFILE_MIN = VIDEO_CODEC_PROFILE_UNKNOWN,
  H264PROFILE_MIN = 0,
  H264PROFILE_BASELINE = H264PROFILE_MIN,
  H264PROFILE_MAIN,
  H264PROFILE_EXTENDED,
  H264PROFILE_HIGH,
  H264PROFILE_HIGH10PROFILE,
  H264PROFILE_HIGH422PROFILE,
  H264PROFILE_HIGH444PREDICTIVEPROFILE,
  H264PROFILE_SCALABLEBASELINE,
  H264PROFILE_SCALABLEHIGH,
  H264PROFILE_STEREOHIGH,
  H264PROFILE_MULTIVIEWHIGH,
  H264PROFILE_MAX = H264PROFILE_MULTIVIEWHIGH,
  VP8PROFILE_MIN,
  VP8PROFILE_ANY = VP8PROFILE_MIN,
  VP8PROFILE_MAX = VP8PROFILE_ANY,
  VP9PROFILE_MIN,
  VP9PROFILE_PROFILE0 = VP9PROFILE_MIN,
  VP9PROFILE_PROFILE1,
  VP9PROFILE_PROFILE2,
  VP9PROFILE_PROFILE3,
  VP9PROFILE_MAX = VP9PROFILE_PROFILE3,
  HEVCPROFILE_MIN,
  HEVCPROFILE_MAIN = HEVCPROFILE_MIN,
  HEVCPROFILE_MAIN10,
  HEVCPROFILE_MAIN_STILL_PICTURE,
  HEVCPROFILE_MAX = HEVCPROFILE_MAIN_STILL_PICTURE,
  VIDEO_CODEC_PROFILE_MAX = HEVCPROFILE_MAX,
};

// See media/base/encryption_scheme.h.
// Kept in sync with media::CipherMode via static_asserts.
enum CipherMode {
  UNENCRYPTED = 0,
  AES_CTR,
  AES_CBC,
  MAX = AES_CBC
};

// This defines a mojo transport format for media::EncryptionScheme::Pattern
// See media/base/encryption_scheme.h for description.
struct Pattern {
  uint32 encrypt_blocks;
  uint32 skip_blocks;
};

// This defines a mojo transport format for media::EncryptionScheme.
// See media/base/encryption_scheme.h for description.
struct EncryptionScheme {
  CipherMode mode;
  Pattern pattern;
};

// This defines a mojo transport format for media::AudioDecoderConfig.
// See media/base/audio_decoder_config.h for descriptions.
struct AudioDecoderConfig {
  AudioCodec codec;
  SampleFormat sample_format;
  ChannelLayout channel_layout;
  int32 samples_per_second;
  array<uint8>? extra_data;
  int64 seek_preroll_usec;
  int32 codec_delay;
  EncryptionScheme encryption_scheme;
};

// This defines a mojo transport format for media::VideoDecoderConfig.
// See media/base/video_decoder_config.h for descriptions.
struct VideoDecoderConfig {
  VideoCodec codec;
  VideoCodecProfile profile;
  VideoFormat format;
  ColorSpace color_space;
  mojo.Size coded_size;
  mojo.Rect visible_rect;
  mojo.Size natural_size;
  array<uint8>? extra_data;
  EncryptionScheme encryption_scheme;
};

// This defines a mojo transport format for media::SubsampleEntry.
// See media/base/decrypt_config.h for descriptions.
struct SubsampleEntry {
  uint32 clear_bytes;
  uint32 cypher_bytes;
};

// This defines a mojo transport format for media::DecryptConfig.
// See media/base/decrypt_config.h for descriptions.
struct DecryptConfig {
  string key_id;
  string iv;
  array<SubsampleEntry> subsamples;
};

// This defines a mojo transport format for media::DecoderBuffer.
struct DecoderBuffer {
  int64 timestamp_usec;
  int64 duration_usec;

  // The number of bytes present in this buffer.  The data is not serialized
  // along with this structure and must be read from a separate DataPipe.
  uint32 data_size;

  // Indicates whether or not this buffer is a random access point.
  bool is_key_frame;

  // This is backed by an std::vector and results in a few copies.
  // Into the vector, onto and off the MessagePipe, back into a vector.
  array<uint8>? side_data;

  // DecryptConfig for a encrypted buffer. NULL if the buffer is not encrypted.
  DecryptConfig? decrypt_config;

  // These fields indicate the amount of data to discard after decoding.
  int64 front_discard_usec;
  int64 back_discard_usec;

  // Indicates this buffer is part of a splice around |splice_timestamp_usec|.
  int64 splice_timestamp_usec;
};

// This defines a mojo transport format for media::AudioBuffer.
struct AudioBuffer {
  // Format of the audio.
  SampleFormat sample_format;

  // How the channels are laid out.
  ChannelLayout channel_layout;

  // Number of channels.
  int32 channel_count;

  // Sample rate of the buffer.
  int32 sample_rate;

  // Number of frames in the buffer.
  int32 frame_count;

  // True if end of stream.
  bool end_of_stream;

  // Timestamp in microseconds of the first frame.
  int64 timestamp_usec;

  // Channel data. Will be null for EOS buffers.
  array<uint8>? data;
};

// This defines a mojo transport format for media::VideoFrame.
struct VideoFrame {
  // Format of the frame.
  VideoFormat format;

  // Width and height of the video frame, in pixels.
  mojo.Size coded_size;

  // Visible size of the frame.
  mojo.Rect visible_rect;

  // Natural size of the frame.
  mojo.Size natural_size;

  // True if end of stream.
  bool end_of_stream;

  // Timestamp in microseconds of the associated frame.
  int64 timestamp_usec;

  // Reference to the shared memory containing the frame's data.
  handle<shared_buffer> frame_data;
  uint64 frame_data_size;

  // Stride and offsets for each plane. Offsets are relative to the start
  // of |frame_data|.
  int32 y_stride;
  int32 u_stride;
  int32 v_stride;
  uint64 y_offset;
  uint64 u_offset;
  uint64 v_offset;
};