cast/streaming/remoting.proto - platform/external/openscreen - Git at Google

 // Copyright 2020 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.
 //
 // This file is based on and intended as a replacement for Chrome's
 // /media/remoting/media_remoting_rpc.proto file. Structurally, the messaging
 // and enums are a reflection of Chrome's media stack. NOTE: all content
 // encryption related messaging has been removed, and replaced with `reserved`
 // keyword usages below.

 syntax = "proto2";

 option optimize_for = LITE_RUNTIME;

 package openscreen.cast;

 // DecoderBuffer information which will be sent using RTP packets. The actual
 // decoder buffer is not included in this proto data structure.
 message DecoderBuffer {
   reserved 4, 7;
   reserved "decrypt_config", "splice_timestamp_usec";

   optional int64 timestamp_usec = 1;
   optional int64 duration_usec = 2;
   optional bool is_key_frame = 3;
   optional int64 front_discard_usec = 5;
   optional int64 back_discard_usec = 6;
   optional bytes side_data = 8;

   // To distinguish from valid 0-length buffers
   optional bool is_eos = 9;
 }

 message Size {
   optional int32 width = 1;
   optional int32 height = 2;
 }

 message AudioDecoderConfig {
   reserved 2;
   reserved "encryption_scheme";

   // Proto version of Chrome's media::Codec.
   enum Codec {
     kUnknownAudioCodec = 0;
     kCodecAAC = 1;
     kCodecMP3 = 2;
     kCodecPCM = 3;
     kCodecVorbis = 4;
     kCodecFLAC = 5;
     kCodecAMR_NB = 6;
     kCodecAMR_WB = 7;
     kCodecPCM_MULAW = 8;
     kCodecGSM_MS = 9;
     kCodecPCM_S16BE = 10;
     kCodecPCM_S24BE = 11;
     kCodecOpus = 12;
     kCodecEAC3 = 13;
     kCodecPCM_ALAW = 14;
     kCodecALAC = 15;
     kCodecAC3 = 16;
     kCodecMpegHAudio = 17;
   }

   // Proto version of Chrome's media::SampleFormat.
   enum SampleFormat {
     kUnknownSampleFormat = 0;
     kSampleFormatU8 = 1;
     kSampleFormatS16 = 2;
     kSampleFormatS32 = 3;
     kSampleFormatF32 = 4;
     kSampleFormatPlanarS16 = 5;
     kSampleFormatPlanarF32 = 6;
     kSampleFormatPlanarS32 = 7;
     kSampleFormatS24 = 8;
     kSampleFormatAc3 = 9;
     kSampleFormatEac3 = 10;
     kSampleFormatMpegHAudio = 11;
   };

   // Proto version of Chrome's media::ChannelLayout.
   enum ChannelLayout {
     CHANNEL_LAYOUT_NONE = 0;
     CHANNEL_LAYOUT_UNSUPPORTED = 1;
     CHANNEL_LAYOUT_MONO = 2;
     CHANNEL_LAYOUT_STEREO = 3;
     CHANNEL_LAYOUT_2_1 = 4;
     CHANNEL_LAYOUT_SURROUND = 5;
     CHANNEL_LAYOUT_4_0 = 6;
     CHANNEL_LAYOUT_2_2 = 7;
     CHANNEL_LAYOUT_QUAD = 8;
     CHANNEL_LAYOUT_5_0 = 9;
     CHANNEL_LAYOUT_5_1 = 10;
     CHANNEL_LAYOUT_5_0_BACK = 11;
     CHANNEL_LAYOUT_5_1_BACK = 12;
     CHANNEL_LAYOUT_7_0 = 13;
     CHANNEL_LAYOUT_7_1 = 14;
     CHANNEL_LAYOUT_7_1_WIDE = 15;
     CHANNEL_LAYOUT_STEREO_DOWNMIX = 16;
     CHANNEL_LAYOUT_2POINT1 = 17;
     CHANNEL_LAYOUT_3_1 = 18;
     CHANNEL_LAYOUT_4_1 = 19;
     CHANNEL_LAYOUT_6_0 = 20;
     CHANNEL_LAYOUT_6_0_FRONT = 21;
     CHANNEL_LAYOUT_HEXAGONAL = 22;
     CHANNEL_LAYOUT_6_1 = 23;
     CHANNEL_LAYOUT_6_1_BACK = 24;
     CHANNEL_LAYOUT_6_1_FRONT = 25;
     CHANNEL_LAYOUT_7_0_FRONT = 26;
     CHANNEL_LAYOUT_7_1_WIDE_BACK = 27;
     CHANNEL_LAYOUT_OCTAGONAL = 28;
     CHANNEL_LAYOUT_DISCRETE = 29;
     CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC = 30;
     CHANNEL_LAYOUT_4_1_QUAD_SIDE = 31;
     CHANNEL_LAYOUT_BITSTREAM = 32;
   };

   optional Codec codec = 1;
   optional SampleFormat sample_format = 3;
   optional ChannelLayout channel_layout = 4;
   optional int32 samples_per_second = 5;
   optional int64 seek_preroll_usec = 6;
   optional int32 codec_delay = 7;
   optional bytes extra_data = 8;
 }

 message Rect {
   optional int32 x = 1;
   optional int32 y = 2;
   optional int32 width = 3;
   optional int32 height = 4;
 }

 message VideoDecoderConfig {
   reserved 2;
   reserved "encryption_scheme";

   // Proto version of Chrome's media::VideoCodec.
   enum Codec {
     kUnknownVideoCodec = 0;
     kCodecH264 = 1;
     kCodecVC1 = 2;
     kCodecMPEG2 = 3;
     kCodecMPEG4 = 4;
     kCodecTheora = 5;
     kCodecVP8 = 6;
     kCodecVP9 = 7;
     kCodecHEVC = 8;
     kCodecDolbyVision = 9;
     kCodecAV1 = 10;
   }

   // Proto version of Chrome's media::VideoCodecProfile.
   enum Profile {
     VIDEO_CODEC_PROFILE_UNKNOWN = -1;
     H264PROFILE_BASELINE = 0;
     H264PROFILE_MAIN = 1;
     H264PROFILE_EXTENDED = 2;
     H264PROFILE_HIGH = 3;
     H264PROFILE_HIGH10PROFILE = 4;
     H264PROFILE_HIGH422PROFILE = 5;
     H264PROFILE_HIGH444PREDICTIVEPROFILE = 6;
     H264PROFILE_SCALABLEBASELINE = 7;
     H264PROFILE_SCALABLEHIGH = 8;
     H264PROFILE_STEREOHIGH = 9;
     H264PROFILE_MULTIVIEWHIGH = 10;
     VP8PROFILE_ANY = 11;
     VP9PROFILE_PROFILE0 = 12;
     VP9PROFILE_PROFILE1 = 13;
     VP9PROFILE_PROFILE2 = 14;
     VP9PROFILE_PROFILE3 = 15;
     HEVCPROFILE_MAIN = 16;
     HEVCPROFILE_MAIN10 = 17;
     HEVCPROFILE_MAIN_STILL_PICTURE = 18;
     DOLBYVISION_PROFILE0 = 19;
     DOLBYVISION_PROFILE4 = 20;
     DOLBYVISION_PROFILE5 = 21;
     DOLBYVISION_PROFILE7 = 22;
     THEORAPROFILE_ANY = 23;
     AV1PROFILE_PROFILE_MAIN = 24;
     AV1PROFILE_PROFILE_HIGH = 25;
     AV1PROFILE_PROFILE_PRO = 26;
     DOLBYVISION_PROFILE8 = 27;
     DOLBYVISION_PROFILE9 = 28;
   };

   // Proto version of Chrome's media::VideoPixelFormat.
   enum Format {
     reserved 8, 25;
     reserved "PIXEL_FORMAT_UYVY", "PIXEL_FORMAT_Y8";

     PIXEL_FORMAT_UNKNOWN = 0;
     PIXEL_FORMAT_I420 = 1;
     PIXEL_FORMAT_YV12 = 2;
     PIXEL_FORMAT_I422 = 3;
     PIXEL_FORMAT_I420A = 4;
     PIXEL_FORMAT_I444 = 5;
     PIXEL_FORMAT_NV12 = 6;
     PIXEL_FORMAT_NV21 = 7;
     PIXEL_FORMAT_YUY2 = 9;
     PIXEL_FORMAT_ARGB = 10;
     PIXEL_FORMAT_XRGB = 11;
     PIXEL_FORMAT_RGB24 = 12;
     PIXEL_FORMAT_RGB32 = 13;
     PIXEL_FORMAT_MJPEG = 14;
     PIXEL_FORMAT_YUV420P9 = 16;
     PIXEL_FORMAT_YUV420P10 = 17;
     PIXEL_FORMAT_YUV422P9 = 18;
     PIXEL_FORMAT_YUV422P10 = 19;
     PIXEL_FORMAT_YUV444P9 = 20;
     PIXEL_FORMAT_YUV444P10 = 21;
     PIXEL_FORMAT_YUV420P12 = 22;
     PIXEL_FORMAT_YUV422P12 = 23;
     PIXEL_FORMAT_YUV444P12 = 24;
     PIXEL_FORMAT_Y16 = 26;
     PIXEL_FORMAT_ABGR = 27;
     PIXEL_FORMAT_XBGR = 28;
     PIXEL_FORMAT_P016LE = 29;
     PIXEL_FORMAT_XR30 = 30;
     PIXEL_FORMAT_XB30 = 31;
   };

   // Proto version of Chrome's media::ColorSpace.
   enum ColorSpace {
     COLOR_SPACE_UNSPECIFIED = 0;
     COLOR_SPACE_JPEG = 1;
     COLOR_SPACE_HD_REC709 = 2;
     COLOR_SPACE_SD_REC601 = 3;
   };

   optional Codec codec = 1;
   optional Profile profile = 3;
   optional Format format = 4;
   optional ColorSpace color_space = 5;
   optional Size coded_size = 6;
   optional Rect visible_rect = 7;
   optional Size natural_size = 8;
   optional bytes extra_data = 9;
 }

 message PipelineDecoderInfo {
   reserved 3;
   reserved "has_decrypting_demuxer_stream";
   optional string decoder_name = 1;
   optional bool is_platform_decoder = 2;
 };

 message PipelineStatistics {
   optional uint64 audio_bytes_decoded = 1;
   optional uint64 video_bytes_decoded = 2;
   optional uint32 video_frames_decoded = 3;
   optional uint32 video_frames_dropped = 4;
   optional int64 audio_memory_usage = 5;
   optional int64 video_memory_usage = 6;
   optional int64 video_frame_duration_average_usec = 7;
   optional PipelineDecoderInfo audio_decoder_info = 8;
   optional PipelineDecoderInfo video_decoder_info = 9;
 };

 message AcquireDemuxer {
   optional int32 audio_demuxer_handle = 1;
   optional int32 video_demuxer_handle = 2;
 }

 message RendererInitialize {
   optional int32 client_handle = 1;
   optional int32 audio_demuxer_handle = 2;
   optional int32 video_demuxer_handle = 3;
   optional int32 callback_handle = 4;
 }

 message RendererFlushUntil {
   optional uint32 audio_count = 1;
   optional uint32 video_count = 2;
   optional int32 callback_handle = 3;
 }

 message RendererClientOnTimeUpdate {
   optional int64 time_usec = 1;
   optional int64 max_time_usec = 2;
 }

 message RendererClientOnBufferingStateChange {
   // Proto version of Chrome's media::BufferingState.
   enum State {
     BUFFERING_HAVE_NOTHING = 0;
     BUFFERING_HAVE_ENOUGH = 1;
   };

   optional State state = 1;
 }

 message RendererClientOnAudioConfigChange {
   optional AudioDecoderConfig audio_decoder_config = 1;
 }

 message RendererClientOnVideoConfigChange {
   optional VideoDecoderConfig video_decoder_config = 1;
 }

 message DemuxerStreamReadUntil {
   optional int32 callback_handle = 1;
   optional uint32 count = 2;
 }

 message DemuxerStreamInitializeCallback {
   optional int32 type = 1;
   optional AudioDecoderConfig audio_decoder_config = 2;
   optional VideoDecoderConfig video_decoder_config = 3;
 }

 message DemuxerStreamReadUntilCallback {
   // Proto version of Chrome's media::DemuxerStream::Status.
   enum Status {
     kOk = 0;
     kAborted = 1;
     kConfigChanged = 2;
     kError = 3;
   };

   optional Status status = 1;
   optional uint32 count = 2;
   optional AudioDecoderConfig audio_decoder_config = 3;
   optional VideoDecoderConfig video_decoder_config = 4;
 }

 message RpcMessage {
   enum RpcProc {
     reserved 3, 4, 1005, 2007, 2008, 4000 to 5003;

     // NOTE: Since ContentDecryptionModule is also deprecated, do not add new
     // enum values that begin with "RPC_CDM_".
     reserved "RPC_ACQUIRE_CDM", "RPC_ACQUIRE_CDM_DONE",
         "RPC_RC_ONWAITINGFORDECRYPTIONKEY", "RPC_RC_ONDURATIONCHANGE",
         "RPC_R_SETCDM";

     // Remoting setup
     RPC_INTERNAL = 0;
     RPC_ACQUIRE_RENDERER = 1;
     RPC_ACQUIRE_RENDERER_DONE = 2;
     RPC_ACQUIRE_DEMUXER = 5;

     // Renderer message
     RPC_R_INITIALIZE = 1000;
     RPC_R_FLUSHUNTIL = 1001;
     RPC_R_STARTPLAYINGFROM = 1002;
     RPC_R_SETPLAYBACKRATE = 1003;
     RPC_R_SETVOLUME = 1004;

     // Renderer callbacks
     RPC_R_INITIALIZE_CALLBACK = 1100;
     RPC_R_FLUSHUNTIL_CALLBACK = 1101;
     RPC_R_SETCDM_CALLBACK = 1102;

     // Renderer client message
     RPC_RC_ONTIMEUPDATE = 2000;
     RPC_RC_ONBUFFERINGSTATECHANGE = 2001;
     RPC_RC_ONENDED = 2002;
     RPC_RC_ONERROR = 2003;
     RPC_RC_ONVIDEONATURALSIZECHANGE = 2004;
     RPC_RC_ONVIDEOOPACITYCHANGE = 2005;
     RPC_RC_ONSTATISTICSUPDATE = 2006;
     RPC_RC_ONAUDIOCONFIGCHANGE = 2009;
     RPC_RC_ONVIDEOCONFIGCHANGE = 2010;

     // DemuxerStream message
     RPC_DS_INITIALIZE = 3000;
     RPC_DS_READUNTIL = 3001;
     RPC_DS_ENABLEBITSTREAMCONVERTER = 3002;
     RPC_DS_ONERROR = 3003;

     // DemuxerStream callbacks
     RPC_DS_INITIALIZE_CALLBACK = 3100;
     RPC_DS_READUNTIL_CALLBACK = 3101;
   };

   // Component base of RPC message handle. This allows both sender and receiver
   // to send or handle message in desired individual components.
   optional int32 handle = 1;

   // RpcProc of this RPC message
   optional RpcProc proc = 2;

   oneof rpc_oneof {
     // NOTE: reserved keyword is not supported by oneof.
     // reserved 102, 500 to 506, 600 to 603

     // For simple RPC which only passes one parameters can use the following
     // various data type variables without using specific proto data structure.
     // RPC_ACQUIRE_RENDERER
     // RPC_ACQUIRE_RENDERER_DONE
     // RPC_ACQUIRE_CDM
     // RPC_ACQUIRE_CDM_DONE
     // RPC_DS_INITIALIZE_CALLBACK
     // RPC_DS_READ
     // RPC_CDM_SETCLIENT
     int32 integer_value = 3;

     // RPC_R_STARTPLAYINGFROM
     // RPC_RC_ONDURATIONCHANGE
     int64 integer64_value = 4;

     // RPC_R_SETPLAYBACKRATE
     // RPC_R_SETVOLUME
     double double_value = 5;

     // RPC_R_INITIALIZE_CALLBACK
     // RPC_R_SETCDM_CALLBACK
     // RPC_RC_ONVIDEOOPACITYCHANGE
     bool boolean_value = 6;

     // string only:
     // RPC_CDMC_ONSESSIONCLOSED
     string string_value = 7;

     // RPC_R_INITIALIZE
     RendererInitialize renderer_initialize_rpc = 100;

     // RPC_R_FLUSHUNTIL
     RendererFlushUntil renderer_flushuntil_rpc = 101;

     // RPC_ACQUIRE_DEMUXER
     AcquireDemuxer acquire_demuxer_rpc = 103;

     // RPC_RC_ONTIMEUPDATE
     RendererClientOnTimeUpdate rendererclient_ontimeupdate_rpc = 200;
     // RPC_RC_ONVIDEONATURALSIZECHANGE
     Size rendererclient_onvideonatualsizechange_rpc = 201;
     // RPC_RC_ONSTATISTICSUPDATE
     PipelineStatistics rendererclient_onstatisticsupdate_rpc = 202;
     // RPC_RC_ONBUFFERINGSTATECHANGE
     RendererClientOnBufferingStateChange
         rendererclient_onbufferingstatechange_rpc = 203;
     // RPC_RC_ONAUDIOCONFIGCHANGE
     RendererClientOnAudioConfigChange rendererclient_onaudioconfigchange_rpc =
         204;
     // RPC_RC_ONVIDEOCONFIGCHANGE
     RendererClientOnVideoConfigChange rendererclient_onvideoconfigchange_rpc =
         205;

     // RPC_DS_READUNTIL
     DemuxerStreamReadUntil demuxerstream_readuntil_rpc = 300;

     // RPC_DS_INITIALIZE_CALLBACK
     DemuxerStreamInitializeCallback demuxerstream_initializecb_rpc = 400;
     // RPC_DS_READUNTIL_CALLBACK
     DemuxerStreamReadUntilCallback demuxerstream_readuntilcb_rpc = 401;
   };
 }
	// Copyright 2020 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.
	//
	// This file is based on and intended as a replacement for Chrome's
	// /media/remoting/media_remoting_rpc.proto file. Structurally, the messaging
	// and enums are a reflection of Chrome's media stack. NOTE: all content
	// encryption related messaging has been removed, and replaced with `reserved`
	// keyword usages below.

	syntax = "proto2";

	option optimize_for = LITE_RUNTIME;

	package openscreen.cast;

	// DecoderBuffer information which will be sent using RTP packets. The actual
	// decoder buffer is not included in this proto data structure.
	message DecoderBuffer {
	reserved 4, 7;
	reserved "decrypt_config", "splice_timestamp_usec";

	optional int64 timestamp_usec = 1;
	optional int64 duration_usec = 2;
	optional bool is_key_frame = 3;
	optional int64 front_discard_usec = 5;
	optional int64 back_discard_usec = 6;
	optional bytes side_data = 8;

	// To distinguish from valid 0-length buffers
	optional bool is_eos = 9;
	}

	message Size {
	optional int32 width = 1;
	optional int32 height = 2;
	}

	message AudioDecoderConfig {
	reserved 2;
	reserved "encryption_scheme";

	// Proto version of Chrome's media::Codec.
	enum Codec {
	kUnknownAudioCodec = 0;
	kCodecAAC = 1;
	kCodecMP3 = 2;
	kCodecPCM = 3;
	kCodecVorbis = 4;
	kCodecFLAC = 5;
	kCodecAMR_NB = 6;
	kCodecAMR_WB = 7;
	kCodecPCM_MULAW = 8;
	kCodecGSM_MS = 9;
	kCodecPCM_S16BE = 10;
	kCodecPCM_S24BE = 11;
	kCodecOpus = 12;
	kCodecEAC3 = 13;
	kCodecPCM_ALAW = 14;
	kCodecALAC = 15;
	kCodecAC3 = 16;
	kCodecMpegHAudio = 17;
	}

	// Proto version of Chrome's media::SampleFormat.
	enum SampleFormat {
	kUnknownSampleFormat = 0;
	kSampleFormatU8 = 1;
	kSampleFormatS16 = 2;
	kSampleFormatS32 = 3;
	kSampleFormatF32 = 4;
	kSampleFormatPlanarS16 = 5;
	kSampleFormatPlanarF32 = 6;
	kSampleFormatPlanarS32 = 7;
	kSampleFormatS24 = 8;
	kSampleFormatAc3 = 9;
	kSampleFormatEac3 = 10;
	kSampleFormatMpegHAudio = 11;
	};

	// Proto version of Chrome's media::ChannelLayout.
	enum ChannelLayout {
	CHANNEL_LAYOUT_NONE = 0;
	CHANNEL_LAYOUT_UNSUPPORTED = 1;
	CHANNEL_LAYOUT_MONO = 2;
	CHANNEL_LAYOUT_STEREO = 3;
	CHANNEL_LAYOUT_2_1 = 4;
	CHANNEL_LAYOUT_SURROUND = 5;
	CHANNEL_LAYOUT_4_0 = 6;
	CHANNEL_LAYOUT_2_2 = 7;
	CHANNEL_LAYOUT_QUAD = 8;
	CHANNEL_LAYOUT_5_0 = 9;
	CHANNEL_LAYOUT_5_1 = 10;
	CHANNEL_LAYOUT_5_0_BACK = 11;
	CHANNEL_LAYOUT_5_1_BACK = 12;
	CHANNEL_LAYOUT_7_0 = 13;
	CHANNEL_LAYOUT_7_1 = 14;
	CHANNEL_LAYOUT_7_1_WIDE = 15;
	CHANNEL_LAYOUT_STEREO_DOWNMIX = 16;
	CHANNEL_LAYOUT_2POINT1 = 17;
	CHANNEL_LAYOUT_3_1 = 18;
	CHANNEL_LAYOUT_4_1 = 19;
	CHANNEL_LAYOUT_6_0 = 20;
	CHANNEL_LAYOUT_6_0_FRONT = 21;
	CHANNEL_LAYOUT_HEXAGONAL = 22;
	CHANNEL_LAYOUT_6_1 = 23;
	CHANNEL_LAYOUT_6_1_BACK = 24;
	CHANNEL_LAYOUT_6_1_FRONT = 25;
	CHANNEL_LAYOUT_7_0_FRONT = 26;
	CHANNEL_LAYOUT_7_1_WIDE_BACK = 27;
	CHANNEL_LAYOUT_OCTAGONAL = 28;
	CHANNEL_LAYOUT_DISCRETE = 29;
	CHANNEL_LAYOUT_STEREO_AND_KEYBOARD_MIC = 30;
	CHANNEL_LAYOUT_4_1_QUAD_SIDE = 31;
	CHANNEL_LAYOUT_BITSTREAM = 32;
	};

	optional Codec codec = 1;
	optional SampleFormat sample_format = 3;
	optional ChannelLayout channel_layout = 4;
	optional int32 samples_per_second = 5;
	optional int64 seek_preroll_usec = 6;
	optional int32 codec_delay = 7;
	optional bytes extra_data = 8;
	}

	message Rect {
	optional int32 x = 1;
	optional int32 y = 2;
	optional int32 width = 3;
	optional int32 height = 4;
	}

	message VideoDecoderConfig {
	reserved 2;
	reserved "encryption_scheme";

	// Proto version of Chrome's media::VideoCodec.
	enum Codec {
	kUnknownVideoCodec = 0;
	kCodecH264 = 1;
	kCodecVC1 = 2;
	kCodecMPEG2 = 3;
	kCodecMPEG4 = 4;
	kCodecTheora = 5;
	kCodecVP8 = 6;
	kCodecVP9 = 7;
	kCodecHEVC = 8;
	kCodecDolbyVision = 9;
	kCodecAV1 = 10;
	}

	// Proto version of Chrome's media::VideoCodecProfile.
	enum Profile {
	VIDEO_CODEC_PROFILE_UNKNOWN = -1;
	H264PROFILE_BASELINE = 0;
	H264PROFILE_MAIN = 1;
	H264PROFILE_EXTENDED = 2;
	H264PROFILE_HIGH = 3;
	H264PROFILE_HIGH10PROFILE = 4;
	H264PROFILE_HIGH422PROFILE = 5;
	H264PROFILE_HIGH444PREDICTIVEPROFILE = 6;
	H264PROFILE_SCALABLEBASELINE = 7;
	H264PROFILE_SCALABLEHIGH = 8;
	H264PROFILE_STEREOHIGH = 9;
	H264PROFILE_MULTIVIEWHIGH = 10;
	VP8PROFILE_ANY = 11;
	VP9PROFILE_PROFILE0 = 12;
	VP9PROFILE_PROFILE1 = 13;
	VP9PROFILE_PROFILE2 = 14;
	VP9PROFILE_PROFILE3 = 15;
	HEVCPROFILE_MAIN = 16;
	HEVCPROFILE_MAIN10 = 17;
	HEVCPROFILE_MAIN_STILL_PICTURE = 18;
	DOLBYVISION_PROFILE0 = 19;
	DOLBYVISION_PROFILE4 = 20;
	DOLBYVISION_PROFILE5 = 21;
	DOLBYVISION_PROFILE7 = 22;
	THEORAPROFILE_ANY = 23;
	AV1PROFILE_PROFILE_MAIN = 24;
	AV1PROFILE_PROFILE_HIGH = 25;
	AV1PROFILE_PROFILE_PRO = 26;
	DOLBYVISION_PROFILE8 = 27;
	DOLBYVISION_PROFILE9 = 28;
	};

	// Proto version of Chrome's media::VideoPixelFormat.
	enum Format {
	reserved 8, 25;
	reserved "PIXEL_FORMAT_UYVY", "PIXEL_FORMAT_Y8";

	PIXEL_FORMAT_UNKNOWN = 0;
	PIXEL_FORMAT_I420 = 1;
	PIXEL_FORMAT_YV12 = 2;
	PIXEL_FORMAT_I422 = 3;
	PIXEL_FORMAT_I420A = 4;
	PIXEL_FORMAT_I444 = 5;
	PIXEL_FORMAT_NV12 = 6;
	PIXEL_FORMAT_NV21 = 7;
	PIXEL_FORMAT_YUY2 = 9;
	PIXEL_FORMAT_ARGB = 10;
	PIXEL_FORMAT_XRGB = 11;
	PIXEL_FORMAT_RGB24 = 12;
	PIXEL_FORMAT_RGB32 = 13;
	PIXEL_FORMAT_MJPEG = 14;
	PIXEL_FORMAT_YUV420P9 = 16;
	PIXEL_FORMAT_YUV420P10 = 17;
	PIXEL_FORMAT_YUV422P9 = 18;
	PIXEL_FORMAT_YUV422P10 = 19;
	PIXEL_FORMAT_YUV444P9 = 20;
	PIXEL_FORMAT_YUV444P10 = 21;
	PIXEL_FORMAT_YUV420P12 = 22;
	PIXEL_FORMAT_YUV422P12 = 23;
	PIXEL_FORMAT_YUV444P12 = 24;
	PIXEL_FORMAT_Y16 = 26;
	PIXEL_FORMAT_ABGR = 27;
	PIXEL_FORMAT_XBGR = 28;
	PIXEL_FORMAT_P016LE = 29;
	PIXEL_FORMAT_XR30 = 30;
	PIXEL_FORMAT_XB30 = 31;
	};

	// Proto version of Chrome's media::ColorSpace.
	enum ColorSpace {
	COLOR_SPACE_UNSPECIFIED = 0;
	COLOR_SPACE_JPEG = 1;
	COLOR_SPACE_HD_REC709 = 2;
	COLOR_SPACE_SD_REC601 = 3;
	};

	optional Codec codec = 1;
	optional Profile profile = 3;
	optional Format format = 4;
	optional ColorSpace color_space = 5;
	optional Size coded_size = 6;
	optional Rect visible_rect = 7;
	optional Size natural_size = 8;
	optional bytes extra_data = 9;
	}

	message PipelineDecoderInfo {
	reserved 3;
	reserved "has_decrypting_demuxer_stream";
	optional string decoder_name = 1;
	optional bool is_platform_decoder = 2;
	};

	message PipelineStatistics {
	optional uint64 audio_bytes_decoded = 1;
	optional uint64 video_bytes_decoded = 2;
	optional uint32 video_frames_decoded = 3;
	optional uint32 video_frames_dropped = 4;
	optional int64 audio_memory_usage = 5;
	optional int64 video_memory_usage = 6;
	optional int64 video_frame_duration_average_usec = 7;
	optional PipelineDecoderInfo audio_decoder_info = 8;
	optional PipelineDecoderInfo video_decoder_info = 9;
	};

	message AcquireDemuxer {
	optional int32 audio_demuxer_handle = 1;
	optional int32 video_demuxer_handle = 2;
	}

	message RendererInitialize {
	optional int32 client_handle = 1;
	optional int32 audio_demuxer_handle = 2;
	optional int32 video_demuxer_handle = 3;
	optional int32 callback_handle = 4;
	}

	message RendererFlushUntil {
	optional uint32 audio_count = 1;
	optional uint32 video_count = 2;
	optional int32 callback_handle = 3;
	}

	message RendererClientOnTimeUpdate {
	optional int64 time_usec = 1;
	optional int64 max_time_usec = 2;
	}

	message RendererClientOnBufferingStateChange {
	// Proto version of Chrome's media::BufferingState.
	enum State {
	BUFFERING_HAVE_NOTHING = 0;
	BUFFERING_HAVE_ENOUGH = 1;
	};

	optional State state = 1;
	}

	message RendererClientOnAudioConfigChange {
	optional AudioDecoderConfig audio_decoder_config = 1;
	}

	message RendererClientOnVideoConfigChange {
	optional VideoDecoderConfig video_decoder_config = 1;
	}

	message DemuxerStreamReadUntil {
	optional int32 callback_handle = 1;
	optional uint32 count = 2;
	}

	message DemuxerStreamInitializeCallback {
	optional int32 type = 1;
	optional AudioDecoderConfig audio_decoder_config = 2;
	optional VideoDecoderConfig video_decoder_config = 3;
	}

	message DemuxerStreamReadUntilCallback {
	// Proto version of Chrome's media::DemuxerStream::Status.
	enum Status {
	kOk = 0;
	kAborted = 1;
	kConfigChanged = 2;
	kError = 3;
	};

	optional Status status = 1;
	optional uint32 count = 2;
	optional AudioDecoderConfig audio_decoder_config = 3;
	optional VideoDecoderConfig video_decoder_config = 4;
	}

	message RpcMessage {
	enum RpcProc {
	reserved 3, 4, 1005, 2007, 2008, 4000 to 5003;

	// NOTE: Since ContentDecryptionModule is also deprecated, do not add new
	// enum values that begin with "RPC_CDM_".
	reserved "RPC_ACQUIRE_CDM", "RPC_ACQUIRE_CDM_DONE",
	"RPC_RC_ONWAITINGFORDECRYPTIONKEY", "RPC_RC_ONDURATIONCHANGE",
	"RPC_R_SETCDM";

	// Remoting setup
	RPC_INTERNAL = 0;
	RPC_ACQUIRE_RENDERER = 1;
	RPC_ACQUIRE_RENDERER_DONE = 2;
	RPC_ACQUIRE_DEMUXER = 5;

	// Renderer message
	RPC_R_INITIALIZE = 1000;
	RPC_R_FLUSHUNTIL = 1001;
	RPC_R_STARTPLAYINGFROM = 1002;
	RPC_R_SETPLAYBACKRATE = 1003;
	RPC_R_SETVOLUME = 1004;

	// Renderer callbacks
	RPC_R_INITIALIZE_CALLBACK = 1100;
	RPC_R_FLUSHUNTIL_CALLBACK = 1101;
	RPC_R_SETCDM_CALLBACK = 1102;

	// Renderer client message
	RPC_RC_ONTIMEUPDATE = 2000;
	RPC_RC_ONBUFFERINGSTATECHANGE = 2001;
	RPC_RC_ONENDED = 2002;
	RPC_RC_ONERROR = 2003;
	RPC_RC_ONVIDEONATURALSIZECHANGE = 2004;
	RPC_RC_ONVIDEOOPACITYCHANGE = 2005;
	RPC_RC_ONSTATISTICSUPDATE = 2006;
	RPC_RC_ONAUDIOCONFIGCHANGE = 2009;
	RPC_RC_ONVIDEOCONFIGCHANGE = 2010;

	// DemuxerStream message
	RPC_DS_INITIALIZE = 3000;
	RPC_DS_READUNTIL = 3001;
	RPC_DS_ENABLEBITSTREAMCONVERTER = 3002;
	RPC_DS_ONERROR = 3003;

	// DemuxerStream callbacks
	RPC_DS_INITIALIZE_CALLBACK = 3100;
	RPC_DS_READUNTIL_CALLBACK = 3101;
	};

	// Component base of RPC message handle. This allows both sender and receiver
	// to send or handle message in desired individual components.
	optional int32 handle = 1;

	// RpcProc of this RPC message
	optional RpcProc proc = 2;

	oneof rpc_oneof {
	// NOTE: reserved keyword is not supported by oneof.
	// reserved 102, 500 to 506, 600 to 603

	// For simple RPC which only passes one parameters can use the following
	// various data type variables without using specific proto data structure.
	// RPC_ACQUIRE_RENDERER
	// RPC_ACQUIRE_RENDERER_DONE
	// RPC_ACQUIRE_CDM
	// RPC_ACQUIRE_CDM_DONE
	// RPC_DS_INITIALIZE_CALLBACK
	// RPC_DS_READ
	// RPC_CDM_SETCLIENT
	int32 integer_value = 3;

	// RPC_R_STARTPLAYINGFROM
	// RPC_RC_ONDURATIONCHANGE
	int64 integer64_value = 4;

	// RPC_R_SETPLAYBACKRATE
	// RPC_R_SETVOLUME
	double double_value = 5;

	// RPC_R_INITIALIZE_CALLBACK
	// RPC_R_SETCDM_CALLBACK
	// RPC_RC_ONVIDEOOPACITYCHANGE
	bool boolean_value = 6;

	// string only:
	// RPC_CDMC_ONSESSIONCLOSED
	string string_value = 7;

	// RPC_R_INITIALIZE
	RendererInitialize renderer_initialize_rpc = 100;

	// RPC_R_FLUSHUNTIL
	RendererFlushUntil renderer_flushuntil_rpc = 101;

	// RPC_ACQUIRE_DEMUXER
	AcquireDemuxer acquire_demuxer_rpc = 103;

	// RPC_RC_ONTIMEUPDATE
	RendererClientOnTimeUpdate rendererclient_ontimeupdate_rpc = 200;
	// RPC_RC_ONVIDEONATURALSIZECHANGE
	Size rendererclient_onvideonatualsizechange_rpc = 201;
	// RPC_RC_ONSTATISTICSUPDATE
	PipelineStatistics rendererclient_onstatisticsupdate_rpc = 202;
	// RPC_RC_ONBUFFERINGSTATECHANGE
	RendererClientOnBufferingStateChange
	rendererclient_onbufferingstatechange_rpc = 203;
	// RPC_RC_ONAUDIOCONFIGCHANGE
	RendererClientOnAudioConfigChange rendererclient_onaudioconfigchange_rpc =
	204;
	// RPC_RC_ONVIDEOCONFIGCHANGE
	RendererClientOnVideoConfigChange rendererclient_onvideoconfigchange_rpc =
	205;

	// RPC_DS_READUNTIL
	DemuxerStreamReadUntil demuxerstream_readuntil_rpc = 300;

	// RPC_DS_INITIALIZE_CALLBACK
	DemuxerStreamInitializeCallback demuxerstream_initializecb_rpc = 400;
	// RPC_DS_READUNTIL_CALLBACK
	DemuxerStreamReadUntilCallback demuxerstream_readuntilcb_rpc = 401;
	};
	}