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rtp打包减少一次内存拷贝

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xiongziliang
2019-09-06 15:16:22 +08:00
parent ca8e295ada
commit 39e3c89848
19 changed files with 37 additions and 16 deletions
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23
src/Extension/H265Rtp.cpp
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@@ -194,13 +194,24 @@ void H265RtpEncoder::inputFrame(const Frame::Ptr &frame) {
s_e_type = naluType;
}
//FU type
_aucSectionBuf[0] = 49 << 1;
_aucSectionBuf[1] = 1;
_aucSectionBuf[2] = s_e_type;
memcpy(_aucSectionBuf + 3, pcData + nOffset, maxSize);
{
//传入nullptr先不做payload的内存拷贝
auto rtp = makeRtp(getTrackType(), nullptr, maxSize + 3, mark, uiStamp);
//rtp payload 负载部分
uint8_t *payload = (uint8_t*)rtp->data() + rtp->offset;
//FU-A 第1个字节
payload[0] = 49 << 1;
//FU-A 第2个字节貌似固定为1
payload[1] = 1;
//FU-A 第3个字节
payload[2] = s_e_type;
//H265 数据
memcpy(payload + 3,pcData + nOffset, maxSize);
//输入到rtp环形缓存
RtpCodec::inputRtp(rtp,bFirst && H265Frame::isKeyFrame(naluType));
}
nOffset += maxSize;
makeH265Rtp(naluType,_aucSectionBuf, maxSize + 3, mark,bFirst, uiStamp);
bFirst = false;
}
} else {