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For #3176: GB28181: Error and logging for HEVC. v5.0.95 (#3276)

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1. Parse video codec from PSM packet.
2. Return error and logging if HEVC packet.
3. Ignore invalid AVC NALUs, drop AVC AUD and SEI.
4. Disconnect TCP connection if HEVC.
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Winlin 2022-11-24 09:01:01 +08:00 • committed by GitHub
parent 237d60a55d
commit af192d6184
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 38 additions and 8 deletions
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24
trunk/src/app/srs_app_gb28181.cpp
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@ -1315,6 +1315,10 @@ srs_error_t SrsLazyGbMediaTcpConn::cycle()
{
srs_error_t err = do_cycle();
// Should disconnect the TCP connection when stop cycle, especially when we stop first. In this situation, the
// connection won't be closed because it's shared by other objects.
srs_freep(conn_);
// Change state to disconnected.
connected_ = false;
srs_trace("PS: Media disconnect, code=%d", srs_error_code(err));
@ -1642,10 +1646,19 @@ srs_error_t SrsGbMuxer::on_ts_video(SrsTsMessage* msg, SrsBuffer* avs)
// 5bits, 7.3.1 NAL unit syntax,
// ISO_IEC_14496-10-AVC-2003.pdf, page 44.
// 7: SPS, 8: PPS, 5: I Frame, 1: P Frame
SrsAvcNaluType nal_unit_type = (SrsAvcNaluType)(frame[0] & 0x1f);
SrsAvcNaluType nt = (SrsAvcNaluType)(frame[0] & 0x1f);
// ignore the nalu type sps(7), pps(8), aud(9)
if (nal_unit_type == SrsAvcNaluTypeAccessUnitDelimiter) {
// Ignore the nalu except video frames:
// 7: SPS, 8: PPS, 5: I Frame, 1: P Frame, 6: SEI, 9: AUD
if (
nt != SrsAvcNaluTypeSPS && nt != SrsAvcNaluTypePPS && nt != SrsAvcNaluTypeIDR &&
nt != SrsAvcNaluTypeNonIDR && nt != SrsAvcNaluTypeSEI && nt != SrsAvcNaluTypeAccessUnitDelimiter
) {
string bytes = srs_string_dumps_hex(frame, frame_size, 4);
srs_warn("GB: Ignore NALU nt=%d, frame=[%s]", nt, bytes.c_str());
return err;
}
if (nt == SrsAvcNaluTypeSEI || nt == SrsAvcNaluTypeAccessUnitDelimiter) {
continue;
}
@ -2392,6 +2405,11 @@ srs_error_t SrsRecoverablePsContext::decode(SrsBuffer* stream, ISrsPsMessageHand
return enter_recover_mode(stream, handler, stream->pos(), srs_error_wrap(err, "decode pack"));
}
// Check stream type, error if HEVC, because not supported yet.
if (ctx_.video_stream_type_ == SrsTsStreamVideoHEVC) {
return srs_error_new(ERROR_GB_PS_HEADER, "HEVC is not supported");
}
return err;
}