Delphi: DLL的映射
Delphi: DLL的映射
提问于 2011-09-28 09:12:28
当我从Delphi调用函数RTMP_SetupURL时，未在记录RTMP中更新该URL，我将该DLL函数转换为：
int RTMP_SetupURL(RTMP *r, char *url);
function RTMP_SetupURL(var r:RTMP; url:PAnsichar):integer;记录AVal是这样声明的：
AVal = record
av_val: PansiChar;
av_len: integer;
end;在设置init问题之前，我的记录(RTMP)没有被正确初始化，在我的记录下面：
PChar = PAnsiChar;
uint32_t = LongWord;
uint8_t = Byte;
int8_t = char;
int32_t = LongInt;
unsigned_int = LongWord;
unsigned_short = Word;
int16_t = smallint;
cchar = Char;
cint = LongInt;
RTMP = record
m_inChunkSize : cint;
m_outChunkSize : cint;
m_nBWCheckCounter : cint;
m_nBytesIn : cint;
m_nBytesInSent : cint;
m_nBufferMS : cint;
m_stream_id : cint;
m_mediaChannel : cint;
m_mediaStamp : uint32_t;
m_pauseStamp : uint32_t;
m_pausing : cint;
m_nServerBW : cint;
m_nClientBW : cint;
m_nClientBW2 : uint8_t;
m_bPlaying : uint8_t;
m_bSendEncoding : uint8_t;
m_bSendCounter : uint8_t;
m_numInvokes : cint;
m_numCalls : cint;
m_methodCalls : PRTMP_METHOD;
m_vecChannelsIn : array[0..(RTMP_CHANNELS)-1] of PRTMPPacket;
m_vecChannelsOut : array[0..(RTMP_CHANNELS)-1] of PRTMPPacket;
m_channelTimestamp : array[0..(RTMP_CHANNELS)-1] of cint;
m_fAudioCodecs : double;
m_fVideoCodecs : double;
m_fEncoding : double;
m_fDuration : double;
m_msgCounter : cint;
m_polling : cint;
m_resplen : cint;
m_unackd : cint;
m_clientID : AVal;
m_read : RTMP_READ;
m_write : RTMPPacket;
m_sb : RTMPSockBuf;
Link : RTMP_LNK;
end;
PRTMP = ^RTMP;然后我打电话：
var MY_RTMP: RTMP;
MY_RTMP := RTMP_Alloc;
RTMP_Init(MY_RTMP);所有记录都被初始化，但初始化URL时使用的"Link“记录除外。我想记录没有被正确的声明
回答 1
Stack Overflow用户
发布于 2011-09-28 12:48:34
我会试试这个。Here是我作为基础使用的源。
function RTMP_SetupURL(var R: RTMP; Url: PAnsiChar): Integer; cdecl;
external 'librtmp.dll' name 'RTMP_SetupURL';页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/7580891
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