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H264 RTP解码支持STAP-A(24）类型

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更新ZLToolKit(修复logger相关bug)
This commit is contained in:
xiongziliang 2019-01-17 18:26:28 +08:00
parent 49c8d4fb8d
commit 059c118e95
1 changed files with 79 additions and 40 deletions
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119
src/RtspMuxer/H264RtpCodec.cpp
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@ -2,6 +2,7 @@
* MIT License
*
* Copyright (c) 2016 xiongziliang <771730766@qq.com>
* Copyright (c) 2019 火宣 <459502659@qq.com>
*
* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
*
@ -107,51 +108,89 @@ bool H264RtpDecoder::decodeRtp(const RtpPacket::Ptr &rtppack) {
return (isIDR); //i frame
}
if (nal.type == 28) {
//FU-A
FU fu;
MakeFU(frame[1], fu);
if (fu.S == 1) {
//FU-A start
char tmp = (nal.forbidden_zero_bit << 7 | nal.nal_ref_idc << 5 | fu.type);
_h264frame->buffer.assign("\x0\x0\x0\x1", 4);
_h264frame->buffer.push_back(tmp);
_h264frame->buffer.append((char *)frame + 2, length - 2);
_h264frame->type = fu.type;
_h264frame->timeStamp = rtppack->timeStamp;
_h264frame->sequence = rtppack->sequence;
return (_h264frame->type == H264Frame::NAL_IDR); //i frame
switch (nal.type){
case 24:{
// 24 STAP-A 单一时间的组合包
bool haveIDR = false;
auto ptr = frame + 1;
while(true){
int off = ptr - frame;
if (off >= length) {
break;
}
//获取当前nalu的大小
uint16_t len = *ptr++;
len <<= 8;
len |= *ptr++;
if (off + len > length) {
break;
}
if(len >= 10){
//过小的帧丢弃
NALU nal;
MakeNalu(ptr[0], nal);
_h264frame->buffer.assign("\x0\x0\x0\x1", 4);
_h264frame->buffer.append((char *)ptr, len);
_h264frame->type = nal.type;
_h264frame->timeStamp = rtppack->timeStamp;
_h264frame->sequence = rtppack->sequence;
if(nal.type == H264Frame::NAL_IDR){
haveIDR = true;
}
onGetH264(_h264frame);
}
ptr += len;
}
return haveIDR;
}
if (rtppack->sequence != (uint16_t)(_h264frame->sequence + 1)) {
_h264frame->buffer.clear();
WarnL << "丢包,帧废弃:" << rtppack->sequence << "," << _h264frame->sequence;
case 28:{
//FU-A
FU fu;
MakeFU(frame[1], fu);
if (fu.S == 1) {
//FU-A start
char tmp = (nal.forbidden_zero_bit << 7 | nal.nal_ref_idc << 5 | fu.type);
_h264frame->buffer.assign("\x0\x0\x0\x1", 4);
_h264frame->buffer.push_back(tmp);
_h264frame->buffer.append((char *)frame + 2, length - 2);
_h264frame->type = fu.type;
_h264frame->timeStamp = rtppack->timeStamp;
_h264frame->sequence = rtppack->sequence;
return (_h264frame->type == H264Frame::NAL_IDR); //i frame
}
if (rtppack->sequence != (uint16_t)(_h264frame->sequence + 1)) {
_h264frame->buffer.clear();
WarnL << "丢包,帧废弃:" << rtppack->sequence << "," << _h264frame->sequence;
return false;
}
_h264frame->sequence = rtppack->sequence;
if (fu.E == 1) {
//FU-A end
_h264frame->buffer.append((char *)frame + 2, length - 2);
_h264frame->timeStamp = rtppack->timeStamp;
auto isIDR = _h264frame->type == H264Frame::NAL_IDR;
onGetH264(_h264frame);
return isIDR;
}
//FU-A mid
_h264frame->buffer.append((char *)frame + 2, length - 2);
return false;
}
_h264frame->sequence = rtppack->sequence;
if (fu.E == 1) {
//FU-A end
_h264frame->buffer.append((char *)frame + 2, length - 2);
_h264frame->timeStamp = rtppack->timeStamp;
auto isIDR = _h264frame->type == H264Frame::NAL_IDR;
onGetH264(_h264frame);
return isIDR;
}
//FU-A mid
_h264frame->buffer.append((char *)frame + 2, length - 2);
return false;
}
WarnL << "不支持的rtp类型:" << (int)nal.type << " " << rtppack->sequence;
return false;
// 29 FU-B 单NAL单元B模式
// 24 STAP-A 单一时间的组合包
// 25 STAP-B 单一时间的组合包
// 26 MTAP16 多个时间的组合包
// 27 MTAP24 多个时间的组合包
// 0 udef
// 30 udef
// 31 udef
default:{
// 29 FU-B 单NAL单元B模式
// 25 STAP-B 单一时间的组合包
// 26 MTAP16 多个时间的组合包
// 27 MTAP24 多个时间的组合包
// 0 udef
// 30 udef
// 31 udef
WarnL << "不支持的rtp类型:" << (int)nal.type << " " << rtppack->sequence;
return false;
}
}
}
void H264RtpDecoder::onGetH264(const H264Frame::Ptr &frame) {