flow.h
资源名称:tcpmp.rar [点击查看]
上传用户:wstnjxml
上传日期:2014-04-03
资源大小:7248k
文件大小:4k
源码类别:
Windows CE
开发平台:
C/C++
- /*****************************************************************************
- *
- * This program is free software ; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * $Id: flow.h 543 2006-01-07 22:06:24Z picard $
- *
- * The Core Pocket Media Player
- * Copyright (c) 2004-2005 Gabor Kovacs
- *
- ****************************************************************************/
- #ifndef __FLOW_H
- #define __FLOW_H
- #define SHOWAHEAD (TICKSPERSEC/25)
- //--------------------------------------------
- // flow objects have input/output packet pins
- // from which a graph can be built
- // special flag for get/set format structure (packetformat)
- #define PIN_FORMAT 0x10000
- // special flag for get/set process function (packetprocess)
- #define PIN_PROCESS 0x20000
- // format not test
- #define PACKET_NONE 0
- // video (packet based)
- #define PACKET_VIDEO 1
- // audio (packet based)
- #define PACKET_AUDIO 2
- // subtitle (packet based)
- #define PACKET_SUBTITLE 3
- #define PACKET_MAX 4
- typedef struct packetformat
- {
- int Type;
- int ByteRate;
- fraction PacketRate;
- void* Extra;
- int ExtraLength;
- union
- {
- video Video;
- audio Audio;
- subtitle Subtitle;
- } Format;
- } packetformat;
- #define TIME_UNKNOWN -1
- #define TIME_RESEND -2
- #define TIME_BENCH -3
- #define TIME_SYNC -4
- typedef struct flowstate
- {
- int DropLevel;
- tick_t CurrTime;
- } flowstate;
- typedef struct packet
- {
- constplanes Data;
- constplanes LastData; // optional (for video it may increase performance)
- size_t Length; // length of data (in bytes, per planes, not filled for surfaces)
- tick_t RefTime; // packet time (-1 if unknown)
- bool_t Key;
- } packet;
- typedef int (*packetprocess)(void* This, const packet* Data, const flowstate* State);
- DLL void Disconnect(node* Src,int SrcNo,node* Dst,int DstNo);
- DLL int ConnectionUpdate(node* Src,int SrcNo,node* Dst,int DstNo);
- DLL int DummyProcess(void*,const packet*,const flowstate*);
- DLL void PacketFormatEnumClass(array* List,const packetformat* Format);
- DLL bool_t PacketFormatMatch(int Class, const packetformat*);
- DLL int PacketFormatCopy(packetformat* Dst,const packetformat* Src);
- DLL void PacketFormatClear(packetformat*);
- DLL void PacketFormatCombine(packetformat* Dst, const packetformat* Src);
- DLL bool_t PacketFormatExtra(packetformat* p, int Length);
- DLL void PacketFormatDefault(packetformat* p);
- DLL bool_t PacketFormatRotatedVideo(const packetformat* Current, const packetformat* New,int Mask);
- DLL bool_t PacketFormatSimilarAudio(const packetformat* Current, const packetformat* New);
- DLL void PacketFormatPCM(packetformat* p, const packetformat* In, int Bit);
- DLL bool_t PacketFormatName(packetformat* p, tchar_t* Name, int NameLen);
- DLL bool_t EqPacketFormat(const packetformat* a, const packetformat* b);
- //---------------------------------------------------------------
- // packet flow (abstract)
- #define FLOW_CLASS FOURCC('F','L','O','W')
- // buffered output (bool_t)
- #define FLOW_BUFFERED 0x15
- // resend buffered output (void)
- #define FLOW_RESEND 0x16
- // empty buffers (void)
- #define FLOW_FLUSH 0x17
- // event for not supported streams (pin)
- #define FLOW_NOT_SUPPORTED 0x18
- // release resources (bool)
- #define FLOW_BACKGROUND 0x19
- extern DLL int FlowEnum(void*, int* EnumNo, datadef* Out);
- //---------------------------------------------------------------
- // output flow (abstract)
- #define OUT_CLASS FOURCC('O','U','T','P')
- #define OUT_INPUT 0x20
- #define OUT_OUTPUT 0x21
- #define OUT_TOTAL 0x22
- #define OUT_DROPPED 0x23
- #define OUT_KEEPALIVE 0x24
- extern DLL int OutEnum(void*, int* EnumNo, datadef* Out);
- extern void Flow_Init();
- extern void Flow_Done();
- #endif