ZLMediaKit/src/Extension/H264.cpp

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/*
* MIT License
*
* Copyright (c) 2016 xiongziliang <771730766@qq.com>
*
* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
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#include "H264.h"
#include "H264/SPSParser.h"
#include "Util/logger.h"
using namespace toolkit;
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namespace mediakit{
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bool getAVCInfo(const string& strSps,int &iVideoWidth, int &iVideoHeight, float &iVideoFps) {
return getAVCInfo(strSps.data(),strSps.size(),iVideoWidth,iVideoHeight,iVideoFps);
}
bool getAVCInfo(const char * sps,int sps_len,int &iVideoWidth, int &iVideoHeight, float &iVideoFps){
T_GetBitContext tGetBitBuf;
T_SPS tH264SpsInfo;
memset(&tGetBitBuf,0,sizeof(tGetBitBuf));
memset(&tH264SpsInfo,0,sizeof(tH264SpsInfo));
tGetBitBuf.pu8Buf = (uint8_t*)sps + 1;
tGetBitBuf.iBufSize = sps_len - 1;
if(0 != h264DecSeqParameterSet((void *) &tGetBitBuf, &tH264SpsInfo)){
return false;
}
h264GetWidthHeight(&tH264SpsInfo, &iVideoWidth, &iVideoHeight);
h264GeFramerate(&tH264SpsInfo, &iVideoFps);
//ErrorL << iVideoWidth << " " << iVideoHeight << " " << iVideoFps;
return true;
}
}//namespace mediakit