forked from mia/Aegisub
121 lines
3.7 KiB
C
121 lines
3.7 KiB
C
/*
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* Copyright (c) 2004-2008 Mike Matsnev. All Rights Reserved.
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*
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* $Id: CoParser.h,v 1.21 2008/03/29 15:41:28 mike Exp $
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*
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*/
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#ifndef COPARSER_H
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#define COPARSER_H
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// Generic multimedia container parsers support
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// random access stream, this will be provided by
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// IMMContainer's client
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interface __declspec(uuid("8E192E9F-E536-4027-8D46-664CC7A102C5")) IMMStream;
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interface IMMStream : public IUnknown {
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// read count bytes starting at position
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STDMETHOD(Read)( unsigned long long position,
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void *buffer,
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unsigned int *count) = 0;
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// scan the file starting at position for the signature
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// signature can't have zero bytes
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STDMETHOD(Scan)( unsigned long long *position,
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unsigned int signature) = 0;
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};
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interface __declspec(uuid("A237C873-C6AD-422E-90DB-7CB4627DCFD9")) IMMStreamOpen;
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interface IMMStreamOpen : public IUnknown {
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STDMETHOD(Open)(LPCWSTR name) = 0;
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};
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interface __declspec(uuid("D8FF7213-6E09-4256-A2E5-5872C798B128")) IMMFrame;
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interface IMMFrame : public IMediaSample2 {
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// track number must be the same as returned by
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// IMMContainer->EnumTracks() iterator
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STDMETHOD_(unsigned, GetTrack)() = 0;
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STDMETHOD(SetTrack)(unsigned) = 0;
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STDMETHOD_(unsigned, GetPre)() = 0;
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STDMETHOD(SetPre)(unsigned) = 0;
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};
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interface __declspec(uuid("B8324E2A-21A9-46A1-8922-70C55D06311A")) IMMErrorInfo;
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interface IMMErrorInfo : public IUnknown {
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STDMETHOD(LogError)(BSTR message) = 0; // message is owned by the caller
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STDMETHOD(LogWarning)(BSTR message) = 0;
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};
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interface __declspec(uuid("C7120EDB-528C-4ebe-BB53-DA8E70E618EE")) IMemAlloc;
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interface IMemAlloc : public IUnknown {
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STDMETHOD(GetBuffer)(HANDLE hAbortEvt, DWORD size, IMMFrame **pS) = 0;
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};
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// container itself should support IPropertyBag and return
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// at least Duration[UI8] (in ns) property
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// if a containter supports multiple segments in the same
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// physical file it should return SegmentTop[UI8] property
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// that return the offset of the first byte after this
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// segment's end
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interface __declspec(uuid("A369001B-F292-45f7-A942-84F9C8C0718A")) IMMContainer;
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interface IMMContainer : public IUnknown {
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STDMETHOD(Open)( IMMStream *stream,
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unsigned long long position,
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IMMErrorInfo *einfo,
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IMemAlloc *alloc) = 0;
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STDMETHOD(GetProgress)(unsigned long long *cur,unsigned long long *max) = 0;
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STDMETHOD(AbortOpen)() = 0;
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// pu->Next() returns objects supporting IPropertyBag interface
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STDMETHOD(EnumTracks)(IEnumUnknown **pu) = 0;
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// pu->Next() returns objects supporting IProperyBag and IEnumUnknown interfaces
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STDMETHOD(EnumEditions)(IEnumUnknown **pu) = 0;
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// pu->Next() returns objects supporting IProperyBag and IMMStream interfaces
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STDMETHOD(EnumAttachments)(IEnumUnknown **pu) = 0;
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// S_FALSE is end of stream, S_OK next valid frame returned, E_ABORT wait aborted
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STDMETHOD(ReadFrame)(HANDLE hAbortEvt, IMMFrame **frame) = 0;
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// seeking
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STDMETHOD(Seek)(unsigned long long timecode,unsigned flags) = 0;
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};
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/* FIXME: duplicated in matroska parser
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enum { // Track type
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TT_VIDEO = 1,
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TT_AUDIO = 2,
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TT_SUBS = 17,
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TT_INTERLEAVED = 0x10001,
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};
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*/
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enum { // Seek flags
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MMSF_PREV_KF = 1,
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MMSF_NEXT_KF = 2
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};
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/* Track properties [IPropertyBag from EnumTracks->Next()]
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Name Type Optional
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DefaultDuration UI8 Yes in ns
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Video.Interlaced BOOL Yes
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Video.DisplayWidth UI4 Yes
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Video.DisplayHeight UI4 Yes
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Video.PixelWidth UI4 No
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Video.PixelHeight UI4 No
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CodecID BSTR No
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Type UI4 No TT_* enumeration
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CodecPrivate ARRAY|UI1 Yes
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Audio.Channels UI4 No
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Audio.BitDepth UI4 Yes
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Audio.SamplingFreq UI4 No
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Audio.OutputSamplingFreq UI4 Yes
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Language BSTR Yes
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Name BSTR Yes
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FOURCC UI4 Yes
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*/
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#endif
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