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Code Issues Releases Wiki Activity

for bug #199, refine the header generate

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This commit is contained in:
winlin 2014-11-12 18:41:24 +08:00
parent 953159258c
commit 7cf855f242
1 changed files with 29 additions and 33 deletions
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20
trunk/src/rtmp/srs_protocol_stack.cpp
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@ -600,13 +600,15 @@ void SrsProtocol::generate_chunk_header(SrsMessageHeader* mh, bool c0, int* pnbh
// generate the header. // generate the header.
char* p = cache; char* p = cache;
// timestamp for c0/c3
u_int32_t timestamp = (u_int32_t)mh->timestamp;
if (c0) { if (c0) {
// write new chunk stream header, fmt is 0 // write new chunk stream header, fmt is 0
*p++ = 0x00 | (mh->perfer_cid & 0x3F); *p++ = 0x00 | (mh->perfer_cid & 0x3F);
// chunk message header, 11 bytes // chunk message header, 11 bytes
// timestamp, 3bytes, big-endian // timestamp, 3bytes, big-endian
u_int32_t timestamp = (u_int32_t)mh->timestamp;
if (timestamp < RTMP_EXTENDED_TIMESTAMP) { if (timestamp < RTMP_EXTENDED_TIMESTAMP) {
pp = (char*)&timestamp; pp = (char*)&timestamp;
*p++ = pp[2]; *p++ = pp[2];
@ -633,21 +635,17 @@ void SrsProtocol::generate_chunk_header(SrsMessageHeader* mh, bool c0, int* pnbh
*p++ = pp[1]; *p++ = pp[1];
*p++ = pp[2]; *p++ = pp[2];
*p++ = pp[3]; *p++ = pp[3];
// chunk extended timestamp header, 0 or 4 bytes, big-endian
if(timestamp >= RTMP_EXTENDED_TIMESTAMP) {
pp = (char*)&timestamp;
*p++ = pp[3];
*p++ = pp[2];
*p++ = pp[1];
*p++ = pp[0];
}
} else { } else {
// write no message header chunk stream, fmt is 3 // write no message header chunk stream, fmt is 3
// @remark, if perfer_cid > 0x3F, that is, use 2B/3B chunk header, // @remark, if perfer_cid > 0x3F, that is, use 2B/3B chunk header,
// SRS will rollback to 1B chunk header. // SRS will rollback to 1B chunk header.
*p++ = 0xC0 | (mh->perfer_cid & 0x3F); *p++ = 0xC0 | (mh->perfer_cid & 0x3F);
}
// for c0
// chunk extended timestamp header, 0 or 4 bytes, big-endian
//
// for c3:
// chunk extended timestamp header, 0 or 4 bytes, big-endian // chunk extended timestamp header, 0 or 4 bytes, big-endian
// 6.1.3. Extended Timestamp // 6.1.3. Extended Timestamp
// This field is transmitted only when the normal time stamp in the // This field is transmitted only when the normal time stamp in the
@ -662,7 +660,6 @@ void SrsProtocol::generate_chunk_header(SrsMessageHeader* mh, bool c0, int* pnbh
// @see: ngx_rtmp_prepare_message // @see: ngx_rtmp_prepare_message
// @see: http://blog.csdn.net/win_lin/article/details/13363699 // @see: http://blog.csdn.net/win_lin/article/details/13363699
// TODO: FIXME: extract to outer. // TODO: FIXME: extract to outer.
u_int32_t timestamp = (u_int32_t)mh->timestamp;
if (timestamp >= RTMP_EXTENDED_TIMESTAMP) { if (timestamp >= RTMP_EXTENDED_TIMESTAMP) {
pp = (char*)&timestamp; pp = (char*)&timestamp;
*p++ = pp[3]; *p++ = pp[3];
@ -670,7 +667,6 @@ void SrsProtocol::generate_chunk_header(SrsMessageHeader* mh, bool c0, int* pnbh
*p++ = pp[1]; *p++ = pp[1];
*p++ = pp[0]; *p++ = pp[0];
} }
}
// always has header // always has header
*pnbh = p - cache; *pnbh = p - cache;