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重新mp4录制

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This commit is contained in:
xiongziliang
2019-08-01 18:49:04 +08:00
parent 12e1068a39
commit 383a14a76d
14 changed files with 470 additions and 417 deletions
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42
src/Extension/H265Rtp.cpp
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@@ -99,56 +99,56 @@ bool H265RtpDecoder::decodeRtp(const RtpPacket::Ptr &rtppack) {
// fragmentation unit (FU)
FU fu;
MakeFU(frame[2], fu);
if (fu.S == 1) {
//FU-A start
if (fu.S) {
//该帧的第一个rtp包
_h265frame->buffer.assign("\x0\x0\x0\x1", 4);
_h265frame->buffer.push_back(fu.type << 1);
_h265frame->buffer.push_back(0x01);
_h265frame->buffer.append((char *) frame + 3, length - 3);
_h265frame->type = fu.type;
_h265frame->timeStamp = rtppack->timeStamp;
_h265frame->sequence = rtppack->sequence;
//该函数return时，保存下当前sequence,以便下次对比seq是否连续
_lastSeq = rtppack->sequence;
return (_h265frame->keyFrame()); //i frame
}
if (rtppack->sequence != (uint16_t) (_h265frame->sequence + 1)) {
if (rtppack->sequence != _lastSeq + 1 && rtppack->sequence != 0) {
//中间的或末尾的rtp包，其seq必须连续(如果回环了则判定为连续)，否则说明rtp丢包，那么该帧不完整，必须得丢弃
_h265frame->buffer.clear();
WarnL << "丢包,帧废弃:" << rtppack->sequence << "," << _h265frame->sequence;
WarnL << "rtp sequence不连续: " << rtppack->sequence << " != " << _lastSeq << " + 1,该帧被废弃";
return false;
}
_h265frame->sequence = rtppack->sequence;
if (fu.E == 1) {
//FU-A end
if (!fu.E) {
//该帧的中间rtp包
_h265frame->buffer.append((char *) frame + 3, length - 3);
_h265frame->timeStamp = rtppack->timeStamp;
auto isIDR = _h265frame->keyFrame();
onGetH265(_h265frame);
return isIDR;
//该函数return时，保存下当前sequence,以便下次对比seq是否连续
_lastSeq = rtppack->sequence;
return false;
}
//FU-A mid
//该帧最后一个rtp包
_h265frame->buffer.append((char *) frame + 3, length - 3);
return false;
_h265frame->timeStamp = rtppack->timeStamp;
auto key = _h265frame->keyFrame();
onGetH265(_h265frame);
return key;
}
default: // 4.4.1. Single NAL Unit Packets (p24)
//a full frame
_h265frame->buffer.assign("\x0\x0\x0\x1", 4);
_h265frame->buffer.append((char *)frame, length);
_h265frame->type = nal;
_h265frame->timeStamp = rtppack->timeStamp;
_h265frame->sequence = rtppack->sequence;
auto isIDR = _h265frame->keyFrame();
auto key = _h265frame->keyFrame();
onGetH265(_h265frame);
return (isIDR); //i frame
return key;
}
}
void H265RtpDecoder::onGetH265(const H265Frame::Ptr &frame) {
//写入环形缓存
auto lastSeq = _h265frame->sequence;
RtpCodec::inputFrame(frame);
_h265frame = obtainFrame();
_h265frame->sequence = lastSeq;
}