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

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.

trunk/doc/CHANGELOG.md

@@ -8,6 +8,7 @@ The changelog for SRS.
 
 ## SRS 5.0 Changelog
 
+* v5.0, 2022-11-23, For [#3176](https://github.com/ossrs/srs/pull/3176): GB28181: Error and logging for HEVC. v5.0.95
 * v5.0, 2022-11-22, Merge [#3236](https://github.com/ossrs/srs/pull/3236): Live: Limit cached max frames by gop_cache_max_frames. v5.0.93
 * v5.0, 2022-11-22, Asan: Check libasan and show tips. v5.0.92
 * v5.0, 2022-11-21, Merge [#3264](https://github.com/ossrs/srs/pull/3264): Asan: Try to fix st_memory_leak for asan check. (#3264). v5.0.91

trunk/src/app/srs_app_gb28181.cpp

@@ -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);
-
-        // ignore the nalu type sps(7), pps(8), aud(9)
-        if (nal_unit_type == SrsAvcNaluTypeAccessUnitDelimiter) {
+        SrsAvcNaluType nt = (SrsAvcNaluType)(frame[0] & 0x1f);
+
+        // 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;
 }
 

trunk/src/core/srs_core_version5.hpp

@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       5
 #define VERSION_MINOR       0
-#define VERSION_REVISION    94
+#define VERSION_REVISION    95
 
 #endif

trunk/src/kernel/srs_kernel_ps.cpp

@@ -48,6 +48,8 @@ SrsPsContext::SrsPsContext()
     current_ = NULL;
     helper_.ctx_ = this;
     detect_ps_integrity_ = false;
+    video_stream_type_ = SrsTsStreamReserved;
+    audio_stream_type_ = SrsTsStreamReserved;
 }
 
 SrsPsContext::~SrsPsContext()
@@ -121,9 +123,13 @@ srs_error_t SrsPsContext::decode(SrsBuffer* stream, ISrsPsMessageHandler* handle
                 return srs_error_wrap(err, "decode psm");
             }
 
-            srs_info("PS: Ignore PSM for video=%#x, audio=%#x", psm.video_elementary_stream_id_, psm.audio_elementary_stream_id_);
-            //context_->set(psm.video_elementary_stream_id_, SrsTsPidApplyVideo);
-            //context_->set(psm.audio_elementary_stream_id_, SrsTsPidApplyAudio);
+            if (video_stream_type_ == SrsTsStreamReserved || audio_stream_type_ == SrsTsStreamReserved) {
+                srs_trace("PS: Got PSM for video=%#x, audio=%#x", psm.video_elementary_stream_id_, psm.audio_elementary_stream_id_);
+            } else {
+                srs_info("PS: Got PSM for video=%#x, audio=%#x", psm.video_elementary_stream_id_, psm.audio_elementary_stream_id_);
+            }
+            video_stream_type_ = (SrsTsStream)psm.video_stream_type_;
+            audio_stream_type_ = (SrsTsStream)psm.audio_stream_type_;
         } else if (msg->is_video() || msg->is_audio()) {
             // Update the total messages in pack.
             helper_.pack_pre_msg_last_seq_ = helper_.rtp_seq_;
@@ -467,7 +473,7 @@ srs_error_t SrsPsPsmPacket::decode(SrsBuffer* stream)
         b.skip(elementary_stream_info_length);
         srs_info("PS: Ignore %d bytes descriptor for stream=%#x", elementary_stream_info_length, stream_type);
 
-        if (stream_type == SrsTsStreamVideoH264) {
+        if (stream_type == SrsTsStreamVideoH264 || stream_type == SrsTsStreamVideoHEVC) {
             video_stream_type_ = stream_type;
             video_elementary_stream_id_ = elementary_stream_id;
             video_elementary_stream_info_length_ = elementary_stream_info_length;

trunk/src/kernel/srs_kernel_ps.hpp

@@ -66,6 +66,10 @@ private:
     SrsPsPacket* current_;
     // Whether detect PS packet header integrity.
     bool detect_ps_integrity_;
+public:
+    // The stream type parsed from latest PSM packet.
+    SrsTsStream video_stream_type_;
+    SrsTsStream audio_stream_type_;
 public:
     SrsPsContext();
     virtual ~SrsPsContext();

trunk/src/kernel/srs_kernel_ts.hpp

@@ -131,6 +131,7 @@ enum SrsTsStream
     // ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Reserved
     // 0x15-0x7F
     SrsTsStreamVideoH264 = 0x1b,
+    SrsTsStreamVideoHEVC = 0x24,
     // User Private
     // 0x80-0xFF
     SrsTsStreamAudioAC3 = 0x81,