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f43e8ebab9
1. Depacketize single nalu packet/AP/FU 2. Insert start code before each nalu Bug: webrtc:13485 Change-Id: I8346f9c31e61e5d3c2c7e1bf5fdaae4018a1ff78 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/325660 Reviewed-by: Sergey Silkin <ssilkin@webrtc.org> Commit-Queue: Sergey Silkin <ssilkin@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Reviewed-by: Philip Eliasson <philipel@webrtc.org> Cr-Commit-Position: refs/heads/main@{#41628}
54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
/*
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* Copyright (c) 2024 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_RTP_RTCP_SOURCE_RTP_PACKET_H265_COMMON_H_
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#define MODULES_RTP_RTCP_SOURCE_RTP_PACKET_H265_COMMON_H_
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#include <string>
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#include <vector>
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namespace webrtc {
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// The payload header consists of the same
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// fields (F, Type, LayerId and TID) as the NAL unit header. Refer to
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// section 4.4 in RFC 7798.
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constexpr size_t kH265PayloadHeaderSizeBytes = 2;
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// Unlike H.264, H.265 NAL header is 2-bytes.
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constexpr size_t kH265NalHeaderSizeBytes = 2;
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// H.265's FU is constructed of 2-byte payload header, 1-byte FU header and FU
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// payload.
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constexpr size_t kH265FuHeaderSizeBytes = 1;
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// The NALU size for H.265 RTP aggregated packet indicates the size of the NAL
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// unit is 2-bytes.
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constexpr size_t kH265LengthFieldSizeBytes = 2;
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constexpr size_t kH265ApHeaderSizeBytes =
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kH265NalHeaderSizeBytes + kH265LengthFieldSizeBytes;
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// Bit masks for NAL headers.
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enum NalHdrMasks {
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kH265FBit = 0x80,
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kH265TypeMask = 0x7E,
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kH265LayerIDHMask = 0x1,
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kH265LayerIDLMask = 0xF8,
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kH265TIDMask = 0x7,
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kH265TypeMaskN = 0x81,
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kH265TypeMaskInFuHeader = 0x3F
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};
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// Bit masks for FU headers.
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enum FuBitmasks {
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kH265SBitMask = 0x80,
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kH265EBitMask = 0x40,
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kH265FuTypeBitMask = 0x3F
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};
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constexpr uint8_t kStartCode[] = {0, 0, 0, 1};
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} // namespace webrtc
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#endif // MODULES_RTP_RTCP_SOURCE_RTP_PACKET_H265_COMMON_H_
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