zqz/platform-external-webrtc
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add RTP header extension for HDR metadata

Browse Source 
Bug: webrtc:8651
Change-Id: I1c956eaac1532ac0d3820084edb4054a4cc9c68d
Reviewed-on: https://webrtc-review.googlesource.com/c/109924
Commit-Queue: Johannes Kron <kron@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Åsa Persson <asapersson@webrtc.org>
Reviewed-by: Alex Loiko <aleloi@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25578}
This commit is contained in:
Johannes Kron
2018-11-09 11:12:36 +01:00
committed by Commit Bot
parent ee45f900c4
commit ad1d9f0d78
9 changed files with 208 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
modules/rtp_rtcp/source/rtp_header_extensions.h
View File

@ -16,6 +16,7 @@
#include "api/array_view.h"
#include "api/rtp_headers.h"
#include "api/video/hdr_metadata.h"
#include "api/video/video_content_type.h"
#include "api/video/video_frame_marking.h"
#include "api/video/video_rotation.h"
@ -181,6 +182,32 @@ class FrameMarkingExtension {
static bool IsScalable(uint8_t temporal_id, uint8_t layer_id);
};
class HdrMetadataExtension {
public:
using value_type = HdrMetadata;
static constexpr RTPExtensionType kId = kRtpExtensionHdrMetadata;
static constexpr uint8_t kValueSizeBytes = 30;
// TODO(webrtc:8651): Change to a valid uri.
static constexpr const char kUri[] = "rtp-hdr-metadata-uri-placeholder";
static bool Parse(rtc::ArrayView<const uint8_t> data,
HdrMetadata* hdr_metadata);
static size_t ValueSize(const HdrMetadata&) { return kValueSizeBytes; }
static bool Write(rtc::ArrayView<uint8_t> data,
const HdrMetadata& hdr_metadata);
private:
static constexpr int kChromaticityDenominator = 10000; // 0.0001 resolution.
static constexpr int kLuminanceMaxDenominator = 100; // 0.01 resolution.
static constexpr int kLuminanceMinDenominator = 10000; // 0.0001 resolution.
static size_t ParseChromaticity(const uint8_t* data,
HdrMasteringMetadata::Chromaticity* p);
static size_t ParseLuminance(const uint8_t* data, float* f, int denominator);
static size_t WriteChromaticity(uint8_t* data,
const HdrMasteringMetadata::Chromaticity& p);
static size_t WriteLuminance(uint8_t* data, float f, int denominator);
};
// Base extension class for RTP header extensions which are strings.
// Subclasses must defined kId and kUri static constexpr members.
class BaseRtpStringExtension {