229 lines
7.1 KiB
C++
229 lines
7.1 KiB
C++
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#include "LiveRoom/SharedMemory.h"
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#include <Windows.h>
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#include <iostream>
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#include <stdio.h>
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#include "LiveRoom/Const.h"
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DWORD nINdexFrame = 0; //当前读到共享内存中的25*5 帧中的那一帧，音视频都使用这个，在度音频数据中维护
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// 取一帧视频对应的音频数据n
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//返回值為0 正常取流
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int Audio_share_memory_get_oneframe(unsigned char* pAudiobuffer_per, LPVOID pAudio_Memory)
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{
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//这里有一个内存拷贝的过程，可能会影响性能，如果直接使用指针，又怕正在播放中配对方修改
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LONGLONG dwFileOffset = nINdexFrame * Audio_buffer_size_per_get;
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unsigned char* pcontent = static_cast<unsigned char*>(pAudio_Memory);
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pcontent = pcontent + dwFileOffset;
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printf("read audio %d %d %d %d.\n", *pcontent,*(pcontent+1), *(pcontent + 2), *(pcontent + 3));
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ZeroMemory(pAudiobuffer_per, Audio_buffer_size_per_get);
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CopyMemory(pAudiobuffer_per, pcontent, Audio_buffer_size_per_get);
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return 0;
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}
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// 取一帧视频数据
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int Video_share_memory_get_oneframe(unsigned char* pVideobuffer_per, LPVOID pVideo_Memory)
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{
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//printf("read %d video data.\n", nINdexFrame);
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LONGLONG dwFileOffset = nINdexFrame * Video_buffer_size_per_get;
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if (nINdexFrame == Share_memory_frame_count - 1)
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{
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//读到最后的一帧
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nINdexFrame = 0;
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}
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else {
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nINdexFrame = nINdexFrame + 1;
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}
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unsigned char* pcontent = static_cast<unsigned char*>(pVideo_Memory);
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pcontent = pcontent + dwFileOffset;
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//printf("read %d frame video data.\n", nINdexFrame);
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ZeroMemory(pVideobuffer_per, Video_buffer_size_per_get);
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CopyMemory(pVideobuffer_per, pcontent, Video_buffer_size_per_get);
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return 0;
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}
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// 取一帧视频图片数据 或者mask图片数据,没有内存拷贝
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unsigned char* Video_share_memory_get_oneframe_Ex(LPVOID pVideo_Memory)
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{
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//printf("read %d video data.\n", nINdexFrame);
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// char szbuffer[64] = { 0 };
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// sprintf_s(szbuffer, "play video speechID :%d", nINdexFrame);
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// WriteLog(szbuffer);
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LONGLONG dwFileOffset = nINdexFrame * Video_buffer_size_per_get;
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unsigned char* pcontent = static_cast<unsigned char*>(pVideo_Memory);
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pcontent = pcontent + dwFileOffset;
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return pcontent;
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}
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// 取一帧视频图片数据对应mask图片数据,没有内存拷贝
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unsigned char* Mask_share_memory_get_oneframe_Ex(LPVOID pMask_Memory)
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{
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//printf("read %d video data.\n", nINdexFrame);
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LONGLONG dwFileOffset = nINdexFrame * Video_buffer_size_per_get;
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unsigned char* pcontent = static_cast<unsigned char*>(pMask_Memory);
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pcontent = pcontent + dwFileOffset;
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//
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// //printf("read %d frame video data.\n", nINdexFrame);
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// char szbuffer[64] = { 0 };
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// sprintf_s(szbuffer, "read index :%d", nINdexFrame);
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// WriteLog(szbuffer);
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return pcontent;
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}
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unsigned long long nTotalFrameCnt = 0; //当前累计播放的视频数
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//读的index + 1
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void Memory_read_index_add()
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{
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nTotalFrameCnt = nTotalFrameCnt + 1;
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nINdexFrame = ++nINdexFrame % Share_memory_frame_count;
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}
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// 获得当前readindex视频对应的音频数据,没有内存拷贝
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unsigned char* Audio_share_memory_get_oneframe_Ex(LPVOID pAudio_Memory, LPVOID pEndFlag_Memory)
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{
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// char szbuffer[64] = { 0 };
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LONGLONG dwFileOffset = nINdexFrame * Audio_buffer_size_per_get;
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unsigned char* pcontent = static_cast<unsigned char*>(pAudio_Memory);
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pcontent = pcontent + dwFileOffset;
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//
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// sprintf_s(szbuffer, "play audio :%d %lld", nINdexFrame,dwFileOffset);
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// WriteLog(szbuffer);
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static int s_uiEndFlag = 1;
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unsigned char* pcontentFlag = static_cast<unsigned char*>(pEndFlag_Memory);
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/*memset(szbuffer, 0, 256);
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sprintf_s(szbuffer, "r0:pcontentFlag: %d\n", pcontentFlag);
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WriteLog(szbuffer);*/
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UINT dwFileOffsetFlag = nINdexFrame * End_flag_buffer_size_per_get / 5;
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pcontentFlag = pcontentFlag + dwFileOffsetFlag;
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//这里应该加一个有效值校验？
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UINT uiEndFlagData = *pcontentFlag;
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/*memset(szbuffer, 0, 256);
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sprintf_s(szbuffer, "r1:pcontentFlag: %d dwFileOffsetFlag:%d uiEndFlagData=%d w: s_uiEndFlag=%d\n", pcontentFlag, dwFileOffsetFlag, uiEndFlagData, s_uiEndFlag);
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WriteLog(szbuffer);*/
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if (s_uiEndFlag == uiEndFlagData)
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{
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}
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else
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{
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s_uiEndFlag = uiEndFlagData;
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if (1 == s_uiEndFlag)
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{
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// // 发通知
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// udpSocket.SendData("127.0.0.1", 15497, g_strPushEnd.c_str(), g_strPushEnd.length());
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// char szbuffer[64] = { 0 };
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// sprintf_s(szbuffer, "发送静默通知\n");
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// WriteLog(szbuffer);
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}
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}
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return pcontent;
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}
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std::string Speech_Id_Cache_get_oneframe_Ex(LPVOID pSpeech_Id_Cache_Memory)
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{
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// char szbuffer[64] = { 0 };
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// sprintf_s(szbuffer, "play audio speechID :%d", nINdexFrame);
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// WriteLog(szbuffer);
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LONGLONG dwFileOffset = nINdexFrame * Speech_Id_Cache_buffer_size_per_get / 5;
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char* pcontent = static_cast<char*>(pSpeech_Id_Cache_Memory);
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pcontent = pcontent + dwFileOffset;
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return std::string(pcontent);
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}
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//取當前的共享內存中的索引,蔣當前的值/6400,如為2，則表示第二個0.2秒的音視頻都好了,这个数据应该是6400的整数倍
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DWORD Index_share_memory_get_cur_index(LPVOID pIndex_Memory)
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{
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int* pcontent = static_cast<int*>(pIndex_Memory);
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//这里应该加一个有效值校验？
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int indexdata = *pcontent;
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int tmpIndex = indexdata / 1280;
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if ( tmpIndex == 0){
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//0表示第25个0.2秒的数据准备好了 即 120到 124的音频和视频准备好了
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return Share_memory_frame_count;
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}
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//
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// char szbuffer[64] = { 0 };
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// sprintf_s(szbuffer, "memory index : %d, data: %d", tmpIndex, indexdata);
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// WriteLog(szbuffer);
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return tmpIndex;
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}
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//这个index是已经矫正好的
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void Index_share_memory_set_cur_index(DWORD curIndex)
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{
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//蒋内存的指针后移5帧
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nINdexFrame = curIndex -5;
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}
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//當前的index知道的共享內存中的data是否已經播放完，这个地方的逻辑可能有问题
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BOOL current_index_data_is_played_over(DWORD curIndex)
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{
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int remainder = curIndex % 5;
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if (remainder == 0)
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return TRUE;
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else
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return FALSE;
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}
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DWORD get_cur_play_video_index()
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{
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return nINdexFrame;
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}
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//将当前播放视频的index 写入到读共享内存中
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//这个index值为：0,1,2,3。。。。124 ，没帧对应的时长为 40毫秒
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void Bota_Video_Read_share_memory_set_cur_index(LPVOID pRead_Memory)
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{
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// char szbuffer[64] = { 0 };
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// sprintf_s(szbuffer, "bota read index : %llu", nTotalFrameCnt);
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// WriteLog(szbuffer);
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UINT* pcontent = static_cast<UINT*>(pRead_Memory);
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*pcontent = nTotalFrameCnt;
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}
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//判断当前播放帧的位置是否在内存中的位置的前面，则是服务端慢了，假设内存的index表示这5个帧
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//server端打印 put:120.0 6400 153600 160000，这是写入共享内存的是 160000
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//memIndex 取值区间 5,10 。。。125 这个是写的index
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//curIndex 取值区间 0,1,2 到 124 这个是读的index
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//（curIndex + Share_memory_frame_count - 设定的间隔如10） % Share_memory_frame_count
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/*
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* 当前的memindex 为5，可以读取的区间为 120-4
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*/
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BOOL Server_is_slow(DWORD curIndex, DWORD memIndex)
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{
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if (curIndex < memIndex)
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{
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return FALSE;
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}
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else
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{
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if (curIndex == Share_memory_frame_count - 1)
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{
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return FALSE;
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}
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return TRUE;
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}
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}
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