546 lines
20 KiB
C++
546 lines
20 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// The copyright to the contents herein is the property of Valve, L.L.C.
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// The contents may be used and/or copied only with the written permission of
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// Valve, L.L.C., or in accordance with the terms and conditions stipulated in
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// the agreement/contract under which the contents have been supplied.
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//
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//=============================================================================
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#ifndef IVIDEOSERVICES_H
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#define IVIDEOSERVICES_H
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#if defined ( WIN32 )
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#pragma once
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#endif
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#include <math.h>
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#include "appframework/IAppSystem.h"
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#include "tier0/platform.h"
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#include <stdint.h>
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#ifndef _STDINT_H
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#define _STDINT_H
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#endif
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#ifndef _STDINT
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#define _STDINT
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#endif
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#ifndef INT32_MAX
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#define INT32_MAX (0x7FFFFFFF)
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#endif
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#ifndef UINT32_MAX
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#define UINT32_MAX (0xFFFFFFFFu)
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#endif
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//-----------------------------------------------------------------------------
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// Forward declarations
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//-----------------------------------------------------------------------------
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class IMaterial;
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//-----------------------------------------------------------------------------
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// Types used when dealing with video services
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//-----------------------------------------------------------------------------
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#define FILE_EXTENSION_ANY_MATCHING_VIDEO ".vid"
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//#define ENABLE_EXTERNAL_ENCODER_LOGGING
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//-----------------------------------------------------------------------------
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// enums used when dealing with video services
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//-----------------------------------------------------------------------------
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// ==============================================
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// various general video system enumerations
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namespace VideoResult
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{
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enum EVideoResult_t
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{
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SUCCESS = 0,
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SYSTEM_NOT_AVAILABLE,
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CODEC_NOT_AVAILABLE,
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FEATURE_NOT_AVAILABLE,
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UNKNOWN_OPERATION,
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ILLEGAL_OPERATION,
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OPERATION_NOT_SUPPORTED,
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BAD_INPUT_PARAMETERS,
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OPERATION_ALREADY_PERFORMED,
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OPERATION_OUT_OF_SEQUENCE,
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VIDEO_ERROR_OCCURED,
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FILE_ERROR_OCCURED,
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AUDIO_ERROR_OCCURED,
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SYSTEM_ERROR_OCCURED,
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INITIALIZATION_ERROR_OCCURED,
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SHUTDOWN_ERROR_OCCURED,
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MATERIAL_NOT_FOUND,
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RECORDER_NOT_FOUND,
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VIDEO_FILE_NOT_FOUND,
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VIDEO_SYSTEM_NOT_FOUND,
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};
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};
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typedef VideoResult::EVideoResult_t VideoResult_t;
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namespace VideoSystem
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{
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enum EVideoSystem_t
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{
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ALL_VIDEO_SYSTEMS = -2,
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DETERMINE_FROM_FILE_EXTENSION = -1,
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NONE = 0,
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BINK,
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AVI,
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WMV,
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QUICKTIME,
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WEBM,
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VIDEO_SYSTEM_COUNT,
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VIDEO_SYSTEM_FIRST = 1,
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};
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};
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typedef VideoSystem::EVideoSystem_t VideoSystem_t;
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namespace VideoSystemStatus
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{
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enum EVideoSystemStatus_t
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{
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OK = 0,
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NOT_INSTALLED,
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NOT_CURRENT_VERSION,
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NOT_INITIALIZED,
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INITIALIZATION_ERROR,
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};
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};
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typedef VideoSystemStatus::EVideoSystemStatus_t VideoSystemStatus_t;
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namespace VideoSystemFeature
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{
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enum EVideoSystemFeature_t
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{
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NO_FEATURES = 0x00000000,
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PLAY_VIDEO_FILE_FULL_SCREEN = 0x00000001,
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PLAY_VIDEO_FILE_IN_MATERIAL = 0x00000002,
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ENCODE_VIDEO_TO_FILE = 0x00000004,
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ENCODE_AUDIO_TO_FILE = 0x00000008,
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FULL_PLAYBACK = PLAY_VIDEO_FILE_FULL_SCREEN | PLAY_VIDEO_FILE_IN_MATERIAL,
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FULL_ENCODE = ENCODE_VIDEO_TO_FILE | ENCODE_AUDIO_TO_FILE,
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ALL_VALID_FEATURES = FULL_PLAYBACK | FULL_ENCODE,
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ESF_FORCE_UINT32 = UINT32_MAX,
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};
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DEFINE_ENUM_BITWISE_OPERATORS( EVideoSystemFeature_t );
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};
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typedef VideoSystemFeature::EVideoSystemFeature_t VideoSystemFeature_t;
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namespace VideoSoundDeviceOperation
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{
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enum EVideoSoundDeviceOperation_t
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{
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SET_DIRECT_SOUND_DEVICE = 0, // Windows option
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SET_MILES_SOUND_DEVICE, // Supported by RAD
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HOOK_X_AUDIO, // Xbox Option
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SET_SOUND_MANAGER_DEVICE, // OSX Option
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SET_LIB_AUDIO_DEVICE, // PS3 Option
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SET_SDL_SOUND_DEVICE, // SDL Audio
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SET_SDL_PARAMS, // SDL Audio params
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SDLMIXER_CALLBACK, // SDLMixer callback
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OPERATION_COUNT
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};
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};
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typedef VideoSoundDeviceOperation::EVideoSoundDeviceOperation_t VideoSoundDeviceOperation_t;
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// ==============================================
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// Video Encoding related settings
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namespace VideoEncodeCodec
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{
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//
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// NOTE: NEW CODECS SHOULD BE ADDED TO THE END OF THIS LIST.
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//
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enum EVideoEncodeCodec_t
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{
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MPEG2_CODEC,
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MPEG4_CODEC,
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H261_CODEC,
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H263_CODEC,
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H264_CODEC,
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MJPEG_A_CODEC,
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MJPEG_B_CODEC,
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SORENSON3_CODEC,
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CINEPACK_CODEC,
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WEBM_CODEC,
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//
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// NOTE: ADD NEW CODECS HERE.
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//
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CODEC_COUNT,
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DEFAULT_CODEC = H264_CODEC,
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};
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};
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typedef VideoEncodeCodec::EVideoEncodeCodec_t VideoEncodeCodec_t;
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namespace VideoEncodeQuality
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{
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enum EVideoEncodeQuality_t
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{
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MIN_QUALITY = 0,
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MAX_QUALITY = 100
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};
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};
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typedef VideoEncodeQuality::EVideoEncodeQuality_t VideoEncodeQuality_t;
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namespace VideoEncodeSourceFormat
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{
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enum EVideoEncodeSourceFormat_t // Image source format for frames to encoded
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{
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BGRA_32BIT = 0,
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BGR_24BIT,
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RGB_24BIT,
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RGBA_32BIT,
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VIDEO_FORMAT_COUNT,
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VIDEO_FORMAT_FIRST = 0
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};
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};
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typedef VideoEncodeSourceFormat::EVideoEncodeSourceFormat_t VideoEncodeSourceFormat_t;
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namespace VideoEncodeGamma
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{
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enum EVideoEncodeGamma_t
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{
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NO_GAMMA_ADJUST = 0,
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PLATFORM_STANDARD_GAMMA,
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GAMMA_1_8,
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GAMMA_2_2,
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GAMMA_2_5,
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GAMMA_COUNT
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};
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};
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typedef VideoEncodeGamma::EVideoEncodeGamma_t VideoEncodeGamma_t;
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namespace VideoPlaybackGamma
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{
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enum EVideoPlaybackGamma_t
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{
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USE_GAMMA_CONVAR = -1,
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NO_GAMMA_ADJUST = 0,
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PLATFORM_DEFAULT_GAMMMA,
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GAMMA_1_8,
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GAMMA_2_2,
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GAMMA_2_5,
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GAMMA_COUNT
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};
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};
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typedef VideoPlaybackGamma::EVideoPlaybackGamma_t VideoPlaybackGamma_t;
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// ==============================================
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// Video Playback related settings
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namespace VideoPlaybackFlags
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{
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enum EVideoPlaybackFlags_t // Options when playing a video file
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{
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NO_PLAYBACK_OPTIONS = 0x00000000,
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// Full Screen Playback Options
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FILL_WINDOW = 0x00000001, // force video fill entire window
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LOCK_ASPECT_RATIO = 0x00000002, // preserve aspect ratio when scaling
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INTEGRAL_SCALE = 0x00000004, // scale video only by integral amounts
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CENTER_VIDEO_IN_WINDOW = 0x00000008, // center output video in window
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FORCE_MIN_PLAY_TIME = 0x00000010, // play for a minimum amount of time before allowing skip or abort
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ABORT_ON_SPACE = 0x00000100, // Keys to abort fullscreen playback on
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ABORT_ON_ESC = 0x00000200,
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ABORT_ON_RETURN = 0x00000400,
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ABORT_ON_ANY_KEY = 0x00000700,
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PAUSE_ON_SPACE = 0x00001000, // Keys to pause fullscreen playback on
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PAUSE_ON_ESC = 0x00002000,
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PAUSE_ON_RETURN = 0x00004000,
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PAUSE_ON_ANY_KEY = 0x00007000,
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LOOP_VIDEO = 0x00010000, // Full Screen and Video material
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NO_AUDIO = 0x00020000,
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PRELOAD_VIDEO = 0x00040000,
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DONT_AUTO_START_VIDEO = 0x00100000, // Don't begin playing until told to do so.
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TEXTURES_ACTUAL_SIZE = 0x00200000, // Try and use textures the same size as the video frame
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VALID_FULLSCREEN_FLAGS = 0x0007771F, // Playback Flags that are valid for playing videos fullscreen
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VALID_MATERIAL_FLAGS = 0x00370000, // Playback Flags that are valid for playing videos in a material
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DEFAULT_MATERIAL_OPTIONS = NO_PLAYBACK_OPTIONS,
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DEFAULT_FULLSCREEN_OPTIONS = CENTER_VIDEO_IN_WINDOW | LOCK_ASPECT_RATIO | ABORT_ON_ANY_KEY,
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EVPF_FORCE_UINT32 = UINT32_MAX,
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};
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DEFINE_ENUM_BITWISE_OPERATORS( EVideoPlaybackFlags_t );
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}
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typedef VideoPlaybackFlags::EVideoPlaybackFlags_t VideoPlaybackFlags_t;
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namespace AudioEncodeSourceFormat
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{
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enum EAudioEncodeSourceFormat_t // Audio source format to encode
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{
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AUDIO_NONE = 0,
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AUDIO_16BIT_PCMStereo,
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AUDIO_FORMAT_COUNT
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};
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};
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typedef AudioEncodeSourceFormat::EAudioEncodeSourceFormat_t AudioEncodeSourceFormat_t;
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namespace AudioEncodeOptions
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{
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enum EAudioEncodeOptions_t // Options to control audio encoding
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{
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NO_AUDIO_OPTIONS = 0x00000000,
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USE_AUDIO_ENCODE_GROUP_SIZE = 0x00000001, // When adding to the video media, use fixed size sample groups
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GROUP_SIZE_IS_VIDEO_FRAME = 0x00000002, // use a group size equal to one video frame in duration
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LIMIT_AUDIO_TRACK_TO_VIDEO_DURATION = 0x00000004, // Don't let the Audio Track exceed the video track in duration
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PAD_AUDIO_WITH_SILENCE = 0x00000008, // If Audio track duration is less than video track's, pad with silence
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AEO_FORCE_UINT32 = UINT32_MAX,
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};
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DEFINE_ENUM_BITWISE_OPERATORS( EAudioEncodeOptions_t );
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}
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typedef AudioEncodeOptions::EAudioEncodeOptions_t AudioEncodeOptions_t;
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//-----------------------------------------------------------------------------
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// Frame Rate Class
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//-----------------------------------------------------------------------------
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class VideoFrameRate_t
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{
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public:
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inline VideoFrameRate_t() : m_TimeUnitsPerSecond( 0 ), m_TimeUnitsPerFrame( 1000 ) {};
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inline VideoFrameRate_t( int FPS, bool NTSC ) { SetFPS( FPS, NTSC); }
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inline explicit VideoFrameRate_t( float FPS ) { SetFPS( FPS); };
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inline VideoFrameRate_t& operator=( const VideoFrameRate_t& rhs ) { m_TimeUnitsPerSecond = rhs.m_TimeUnitsPerSecond; m_TimeUnitsPerFrame = rhs.m_TimeUnitsPerFrame; return *this; }
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inline VideoFrameRate_t( const VideoFrameRate_t &rhs ) { *this = rhs; };
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inline void SetRaw( int timeUnitsPerSecond, int TimeUnitsPerFrame ) { m_TimeUnitsPerSecond = timeUnitsPerSecond; m_TimeUnitsPerFrame = TimeUnitsPerFrame; }
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inline float GetFPS() const { return (float) m_TimeUnitsPerSecond / (float) m_TimeUnitsPerFrame; }
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inline int GetIntFPS() const { return (int) ( (float) m_TimeUnitsPerSecond / (float) m_TimeUnitsPerFrame + 0.5f ); }
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inline bool IsNTSCRate() const { return ( m_TimeUnitsPerFrame == 1001 ); }
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inline int GetUnitsPerSecond() const { return m_TimeUnitsPerSecond; }
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inline int GetUnitsPerFrame() const { return m_TimeUnitsPerFrame; }
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inline void SetFPS( int FPS, bool NTSC ) { m_TimeUnitsPerSecond = FPS * 1000; m_TimeUnitsPerFrame = 1000 + (uint) NTSC; }
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inline void SetFPS( float FPS ) { m_TimeUnitsPerSecond = (uint) ( FPS * 1000.0f ); m_TimeUnitsPerFrame = 1000; }
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static inline bool IsNTSC( float FPS ) { float diff = ceil(FPS) - FPS; return ( diff > 0.02f && diff < 0.05f); }
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inline void Clear() { m_TimeUnitsPerSecond = 0; m_TimeUnitsPerFrame = 1000; }
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inline bool IsValid() { return ( m_TimeUnitsPerSecond != 0); }
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private:
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uint32 m_TimeUnitsPerSecond;
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uint32 m_TimeUnitsPerFrame;
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};
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//-----------------------------------------------------------------------------
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// specific interfaces returned and managed by video services
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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// Video Material interface - manages the playing back of a video to a
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// a material / texture combo
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//-----------------------------------------------------------------------------
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class IVideoMaterial : public IBaseInterface
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{
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public:
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// Video information functions
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virtual const char *GetVideoFileName() = 0; // Gets the file name of the video this material is playing
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virtual VideoResult_t GetLastResult() = 0; // Gets detailed info on the last operation
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virtual VideoFrameRate_t &GetVideoFrameRate() = 0; // Returns the frame rate of the associated video in FPS
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// Audio Functions
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virtual bool HasAudio() = 0; // Query if the video has an audio track
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virtual bool SetVolume( float fVolume ) = 0; // Adjust the playback volume
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virtual float GetVolume() = 0; // Query the current volume
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virtual void SetMuted( bool bMuteState ) = 0; // Mute/UnMutes the audio playback
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virtual bool IsMuted() = 0; // Query muted status
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virtual VideoResult_t SoundDeviceCommand( VideoSoundDeviceOperation_t operation, void *pDevice = nullptr, void *pData = nullptr ) = 0; // Assign Sound Device for this Video Material
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// Video playback state functions
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virtual bool IsVideoReadyToPlay() = 0; // Queries if the video material was initialized successfully and is ready for playback, but not playing or finished
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virtual bool IsVideoPlaying() = 0; // Is the video currently playing (and needs update calls, etc), or paused while playing?
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virtual bool IsNewFrameReady() = 0; // Do we have a new frame to get & display?
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virtual bool IsFinishedPlaying() = 0; // Have we reached the end of the movie
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virtual bool StartVideo() = 0; // Starts the video playing
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virtual bool StopVideo() = 0; // Terminates the video playing
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virtual void SetLooping( bool bLoopVideo ) = 0; // Sets the video to loop (or not)
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virtual bool IsLooping() = 0; // Queries if the video is looping
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virtual void SetPaused( bool bPauseState ) = 0; // Pauses or Unpauses video playback
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virtual bool IsPaused() = 0; // Queries if the video is paused
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// Position in playback functions
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virtual float GetVideoDuration() = 0; // Returns the duration of the associated video in seconds
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virtual int GetFrameCount() = 0; // Returns the total number of (unique) frames in the video
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virtual bool SetFrame( int FrameNum ) = 0; // Sets the current frame # in the video to play next
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virtual int GetCurrentFrame() = 0; // Gets the current frame # for the video playback, 0 based
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virtual bool SetTime( float flTime ) = 0; // Sets the video playback to specified time (in seconds)
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virtual float GetCurrentVideoTime() = 0; // Gets the current time in the video playback
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// Update function
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virtual bool Update() = 0; // Updates the video frame to reflect the time passed, true = new frame available
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// Material / Texture Info functions
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virtual IMaterial *GetMaterial() = 0; // Gets the IMaterial associated with an video material
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virtual void GetVideoTexCoordRange( float *pMaxU, float *pMaxV ) = 0; // Returns the max texture coordinate of the video portion of the material surface ( 0.0, 0.0 to U, V )
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virtual void GetVideoImageSize( int *pWidth, int *pHeight ) = 0; // Returns the frame size of the Video Image Frame in pixels ( the stored in a subrect of the material itself)
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};
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//-----------------------------------------------------------------------------
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// Video Recorder interface - manages the creation of a new video file
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//-----------------------------------------------------------------------------
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class IVideoRecorder : public IBaseInterface
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{
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public:
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virtual bool EstimateMovieFileSize( size_t *pEstSize, int movieWidth, int movieHeight, VideoFrameRate_t movieFps, float movieDuration, VideoEncodeCodec_t theCodec, int videoQuality, AudioEncodeSourceFormat_t srcAudioFormat = AudioEncodeSourceFormat::AUDIO_NONE, int audioSampleRate = 0 ) = 0;
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virtual bool CreateNewMovieFile( const char *pFilename, bool hasAudioTrack = false ) = 0;
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virtual bool SetMovieVideoParameters( VideoEncodeCodec_t theCodec, int videoQuality, int movieFrameWidth, int movieFrameHeight, VideoFrameRate_t movieFPS, VideoEncodeGamma_t gamma = VideoEncodeGamma::NO_GAMMA_ADJUST ) = 0;
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virtual bool SetMovieSourceImageParameters( VideoEncodeSourceFormat_t srcImageFormat, int imgWidth, int imgHeight ) = 0;
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virtual bool SetMovieSourceAudioParameters( AudioEncodeSourceFormat_t srcAudioFormat = AudioEncodeSourceFormat::AUDIO_NONE, int audioSampleRate = 0, AudioEncodeOptions_t audioOptions = AudioEncodeOptions::NO_AUDIO_OPTIONS, int audioSampleGroupSize = 0) = 0;
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virtual bool IsReadyToRecord() = 0;
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virtual VideoResult_t GetLastResult() = 0;
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virtual bool AppendVideoFrame( void *pFrameBuffer, int nStrideAdjustBytes = 0 ) = 0;
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virtual bool AppendAudioSamples( void *pSampleBuffer, size_t sampleSize ) = 0;
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virtual int GetFrameCount() = 0;
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virtual int GetSampleCount() = 0;
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virtual VideoFrameRate_t GetFPS() = 0;
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virtual int GetSampleRate() = 0;
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virtual bool AbortMovie() = 0;
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virtual bool FinishMovie( bool SaveMovieToDisk = true ) = 0;
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#ifdef ENABLE_EXTERNAL_ENCODER_LOGGING
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virtual bool LogMessage( const char *msg ) = 0;
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#endif
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};
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//-----------------------------------------------------------------------------
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// Main VIDEO_SERVICES interface
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//-----------------------------------------------------------------------------
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#define VIDEO_SERVICES_INTERFACE_VERSION "IVideoServices002"
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class IVideoServices : public IAppSystem
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{
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public:
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// Query the available video systems
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virtual int GetAvailableVideoSystemCount() = 0;
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virtual VideoSystem_t GetAvailableVideoSystem( int n ) = 0;
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virtual bool IsVideoSystemAvailable( VideoSystem_t videoSystem ) = 0;
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virtual VideoSystemStatus_t GetVideoSystemStatus( VideoSystem_t videoSystem ) = 0;
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virtual VideoSystemFeature_t GetVideoSystemFeatures( VideoSystem_t videoSystem ) = 0;
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virtual const char *GetVideoSystemName( VideoSystem_t videoSystem ) = 0;
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virtual VideoSystem_t FindNextSystemWithFeature( VideoSystemFeature_t features, VideoSystem_t startAfter = VideoSystem::NONE ) = 0;
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virtual VideoResult_t GetLastResult() = 0;
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// deal with video file extensions and video system mappings
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virtual int GetSupportedFileExtensionCount( VideoSystem_t videoSystem ) = 0;
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virtual const char *GetSupportedFileExtension( VideoSystem_t videoSystem, int extNum = 0 ) = 0;
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virtual VideoSystemFeature_t GetSupportedFileExtensionFeatures( VideoSystem_t videoSystem, int extNum = 0 ) = 0;
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virtual VideoSystem_t LocateVideoSystemForPlayingFile( const char *pFileName, VideoSystemFeature_t playMode = VideoSystemFeature::PLAY_VIDEO_FILE_IN_MATERIAL ) = 0;
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virtual VideoResult_t LocatePlayableVideoFile( const char *pSearchFileName, const char *pPathID, VideoSystem_t *pPlaybackSystem, char *pPlaybackFileName, int fileNameMaxLen, VideoSystemFeature_t playMode = VideoSystemFeature::FULL_PLAYBACK ) = 0;
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// Create/destroy a video material
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virtual IVideoMaterial *CreateVideoMaterial( const char *pMaterialName, const char *pVideoFileName, const char *pPathID = nullptr,
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VideoPlaybackFlags_t playbackFlags = VideoPlaybackFlags::DEFAULT_MATERIAL_OPTIONS,
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VideoSystem_t videoSystem = VideoSystem::DETERMINE_FROM_FILE_EXTENSION, bool PlayAlternateIfNotAvailable = true ) = 0;
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virtual VideoResult_t DestroyVideoMaterial( IVideoMaterial* pVideoMaterial ) = 0;
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virtual int GetUniqueMaterialID() = 0;
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// Create/destroy a video encoder
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virtual VideoResult_t IsRecordCodecAvailable( VideoSystem_t videoSystem, VideoEncodeCodec_t codec ) = 0;
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virtual IVideoRecorder *CreateVideoRecorder( VideoSystem_t videoSystem ) = 0;
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virtual VideoResult_t DestroyVideoRecorder( IVideoRecorder *pVideoRecorder ) = 0;
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// Plays a given video file until it completes or the user presses ESC, SPACE, or ENTER
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virtual VideoResult_t PlayVideoFileFullScreen( const char *pFileName, const char *pPathID, void *mainWindow, int windowWidth, int windowHeight, int desktopWidth, int desktopHeight, bool windowed, float forcedMinTime,
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VideoPlaybackFlags_t playbackFlags = VideoPlaybackFlags::DEFAULT_FULLSCREEN_OPTIONS,
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VideoSystem_t videoSystem = VideoSystem::DETERMINE_FROM_FILE_EXTENSION, bool PlayAlternateIfNotAvailable = true ) = 0;
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// Sets the sound devices that the video will decode to
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virtual VideoResult_t SoundDeviceCommand( VideoSoundDeviceOperation_t operation, void *pDevice = nullptr, void *pData = nullptr, VideoSystem_t videoSystem = VideoSystem::ALL_VIDEO_SYSTEMS ) = 0;
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// Get the (localized) name of a codec as a string
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virtual const wchar_t *GetCodecName( VideoEncodeCodec_t nCodec ) = 0;
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};
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#endif // IVIDEOSERVICES_H
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