commit 67468c5b926b39cf1962395bc990101ce3e2ea2f
author Qiu Jianlin <jianlin.qiu@intel.com> Tue Jul 20 04:09:15 2021
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> Thu Jul 22 06:25:53 2021
tree a749765450b4f21a19b61be897a508910e99956d
parent c51efc425dc5b3977633c4bd3866cf8d8d83dd06

Ignore prefix NAL unit for slice parsing.

For temporal scalability, prefix NALU contains layer information, but
should not be parsed as a slice.

Bug: webrtc:12991
Change-Id: Ic1e7d41f568310390a743d4ace016aa7d57a4864
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/226501
Reviewed-by: Sergey Silkin <ssilkin@webrtc.org>
Commit-Queue: Sergey Silkin <ssilkin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34523}

common_video/h264/h264_bitstream_parser.cc

diff --git a/common_video/h264/h264_bitstream_parser.cc b/common_video/h264/h264_bitstream_parser.cc
index 3b41599..6eee02e 100644
--- a/common_video/h264/h264_bitstream_parser.cc
+++ b/common_video/h264/h264_bitstream_parser.cc
@@ -288,6 +288,7 @@
     }
     case H264::NaluType::kAud:
     case H264::NaluType::kSei:
+    case H264::NaluType::kPrefix:
       break;  // Ignore these nalus, as we don't care about their contents.
     default:
       Result res = ParseNonParameterSetNalu(slice, length, nalu_type);

common_video/h264/h264_common.h

diff --git a/common_video/h264/h264_common.h b/common_video/h264/h264_common.h
index 2beef16..0b1843e 100644
--- a/common_video/h264/h264_common.h
+++ b/common_video/h264/h264_common.h
@@ -42,6 +42,7 @@
   kEndOfSequence = 10,
   kEndOfStream = 11,
   kFiller = 12,
+  kPrefix = 14,
   kStapA = 24,
   kFuA = 28
 };