Add H265 codec name and profile/tier/level utils.
This adds H265 codec name and profile/tier/level handling needed for
H265 SDP negotiation.
Bug: webrtc:13485
Change-Id: I838b910042ce36f8ae3979c41a73ee46935c57d8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/315900
Reviewed-by: Erik Språng <sprang@webrtc.org>
Reviewed-by: Sergey Silkin <ssilkin@webrtc.org>
Commit-Queue: Jianlin Qiu <jianlin.qiu@intel.com>
Cr-Commit-Position: refs/heads/main@{#40661}
diff --git a/api/video_codecs/BUILD.gn b/api/video_codecs/BUILD.gn
index 20c54d5..d9dd5ae 100644
--- a/api/video_codecs/BUILD.gn
+++ b/api/video_codecs/BUILD.gn
@@ -68,6 +68,13 @@
"vp9_profile.h",
]
+ if (rtc_use_h265) {
+ sources += [
+ "h265_profile_tier_level.cc",
+ "h265_profile_tier_level.h",
+ ]
+ }
+
deps = [
":scalability_mode",
"..:fec_controller_api",
diff --git a/api/video_codecs/h265_profile_tier_level.cc b/api/video_codecs/h265_profile_tier_level.cc
new file mode 100644
index 0000000..f5b376e
--- /dev/null
+++ b/api/video_codecs/h265_profile_tier_level.cc
@@ -0,0 +1,248 @@
+/*
+ * Copyright (c) 2023 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "api/video_codecs/h265_profile_tier_level.h"
+
+#include <string>
+
+#include "rtc_base/string_to_number.h"
+
+namespace webrtc {
+
+namespace {
+
+const char kH265FmtpProfile[] = "profile-id";
+const char kH265FmtpTier[] = "tier-flag";
+const char kH265FmtpLevel[] = "level-id";
+
+} // anonymous namespace
+
+// Annex A of https://www.itu.int/rec/T-REC-H.265 (08/21), section A.3.
+absl::optional<H265Profile> StringToH265Profile(const std::string& profile) {
+ absl::optional<int> i = rtc::StringToNumber<int>(profile);
+ if (!i.has_value()) {
+ return absl::nullopt;
+ }
+
+ switch (i.value()) {
+ case 1:
+ return H265Profile::kProfileMain;
+ case 2:
+ return H265Profile::kProfileMain10;
+ case 3:
+ return H265Profile::kProfileMainStill;
+ case 4:
+ return H265Profile::kProfileRangeExtensions;
+ case 5:
+ return H265Profile::kProfileHighThroughput;
+ case 6:
+ return H265Profile::kProfileMultiviewMain;
+ case 7:
+ return H265Profile::kProfileScalableMain;
+ case 8:
+ return H265Profile::kProfile3dMain;
+ case 9:
+ return H265Profile::kProfileScreenContentCoding;
+ case 10:
+ return H265Profile::kProfileScalableRangeExtensions;
+ case 11:
+ return H265Profile::kProfileHighThroughputScreenContentCoding;
+ default:
+ return absl::nullopt;
+ }
+}
+
+// Annex A of https://www.itu.int/rec/T-REC-H.265 (08/21), section A.4,
+// tiers and levels.
+absl::optional<H265Tier> StringToH265Tier(const std::string& tier) {
+ absl::optional<int> i = rtc::StringToNumber<int>(tier);
+ if (!i.has_value()) {
+ return absl::nullopt;
+ }
+
+ switch (i.value()) {
+ case 0:
+ return H265Tier::kTier0;
+ case 1:
+ return H265Tier::kTier1;
+ default:
+ return absl::nullopt;
+ }
+}
+
+absl::optional<H265Level> StringToH265Level(const std::string& level) {
+ const absl::optional<int> i = rtc::StringToNumber<int>(level);
+ if (!i.has_value())
+ return absl::nullopt;
+
+ switch (i.value()) {
+ case 30:
+ return H265Level::kLevel1;
+ case 60:
+ return H265Level::kLevel2;
+ case 63:
+ return H265Level::kLevel2_1;
+ case 90:
+ return H265Level::kLevel3;
+ case 93:
+ return H265Level::kLevel3_1;
+ case 120:
+ return H265Level::kLevel4;
+ case 123:
+ return H265Level::kLevel4_1;
+ case 150:
+ return H265Level::kLevel5;
+ case 153:
+ return H265Level::kLevel5_1;
+ case 156:
+ return H265Level::kLevel5_2;
+ case 180:
+ return H265Level::kLevel6;
+ case 183:
+ return H265Level::kLevel6_1;
+ case 186:
+ return H265Level::kLevel6_2;
+ default:
+ return absl::nullopt;
+ }
+}
+
+std::string H265ProfileToString(H265Profile profile) {
+ switch (profile) {
+ case H265Profile::kProfileMain:
+ return "1";
+ case H265Profile::kProfileMain10:
+ return "2";
+ case H265Profile::kProfileMainStill:
+ return "3";
+ case H265Profile::kProfileRangeExtensions:
+ return "4";
+ case H265Profile::kProfileHighThroughput:
+ return "5";
+ case H265Profile::kProfileMultiviewMain:
+ return "6";
+ case H265Profile::kProfileScalableMain:
+ return "7";
+ case H265Profile::kProfile3dMain:
+ return "8";
+ case H265Profile::kProfileScreenContentCoding:
+ return "9";
+ case H265Profile::kProfileScalableRangeExtensions:
+ return "10";
+ case H265Profile::kProfileHighThroughputScreenContentCoding:
+ return "11";
+ }
+}
+
+std::string H265TierToString(H265Tier tier) {
+ switch (tier) {
+ case H265Tier::kTier0:
+ return "0";
+ case H265Tier::kTier1:
+ return "1";
+ }
+}
+
+std::string H265LevelToString(H265Level level) {
+ switch (level) {
+ case H265Level::kLevel1:
+ return "30";
+ case H265Level::kLevel2:
+ return "60";
+ case H265Level::kLevel2_1:
+ return "63";
+ case H265Level::kLevel3:
+ return "90";
+ case H265Level::kLevel3_1:
+ return "93";
+ case H265Level::kLevel4:
+ return "120";
+ case H265Level::kLevel4_1:
+ return "123";
+ case H265Level::kLevel5:
+ return "150";
+ case H265Level::kLevel5_1:
+ return "153";
+ case H265Level::kLevel5_2:
+ return "156";
+ case H265Level::kLevel6:
+ return "180";
+ case H265Level::kLevel6_1:
+ return "183";
+ case H265Level::kLevel6_2:
+ return "186";
+ }
+}
+
+absl::optional<H265ProfileTierLevel> ParseSdpForH265ProfileTierLevel(
+ const SdpVideoFormat::Parameters& params) {
+ static const H265ProfileTierLevel kDefaultProfileTierLevel(
+ H265Profile::kProfileMain, H265Tier::kTier0, H265Level::kLevel3_1);
+ bool profile_tier_level_specified = false;
+
+ absl::optional<H265Profile> profile;
+ const auto profile_it = params.find(kH265FmtpProfile);
+ if (profile_it != params.end()) {
+ profile_tier_level_specified = true;
+ const std::string& profile_str = profile_it->second;
+ profile = StringToH265Profile(profile_str);
+ if (!profile) {
+ return absl::nullopt;
+ }
+ } else {
+ profile = H265Profile::kProfileMain;
+ }
+ absl::optional<H265Tier> tier;
+ const auto tier_it = params.find(kH265FmtpTier);
+ if (tier_it != params.end()) {
+ profile_tier_level_specified = true;
+ const std::string& tier_str = tier_it->second;
+ tier = StringToH265Tier(tier_str);
+ if (!tier) {
+ return absl::nullopt;
+ }
+ } else {
+ tier = H265Tier::kTier0;
+ }
+ absl::optional<H265Level> level;
+ const auto level_it = params.find(kH265FmtpLevel);
+ if (level_it != params.end()) {
+ profile_tier_level_specified = true;
+ const std::string& level_str = level_it->second;
+ level = StringToH265Level(level_str);
+ if (!level) {
+ return absl::nullopt;
+ }
+ } else {
+ level = H265Level::kLevel3_1;
+ }
+
+ // Spec Table A.9, level 1 to level 3.1 does not allow high tiers.
+ if (level <= H265Level::kLevel3_1 && tier == H265Tier::kTier1) {
+ return absl::nullopt;
+ }
+
+ return !profile_tier_level_specified
+ ? kDefaultProfileTierLevel
+ : H265ProfileTierLevel(profile.value(), tier.value(),
+ level.value());
+}
+
+bool H265IsSameProfileTierLevel(const SdpVideoFormat::Parameters& params1,
+ const SdpVideoFormat::Parameters& params2) {
+ const absl::optional<H265ProfileTierLevel> ptl1 =
+ ParseSdpForH265ProfileTierLevel(params1);
+ const absl::optional<H265ProfileTierLevel> ptl2 =
+ ParseSdpForH265ProfileTierLevel(params2);
+ return ptl1 && ptl2 && ptl1->profile == ptl2->profile &&
+ ptl1->tier == ptl2->tier && ptl1->level == ptl2->level;
+}
+
+} // namespace webrtc
diff --git a/api/video_codecs/h265_profile_tier_level.h b/api/video_codecs/h265_profile_tier_level.h
new file mode 100644
index 0000000..3056d2b
--- /dev/null
+++ b/api/video_codecs/h265_profile_tier_level.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2023 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef API_VIDEO_CODECS_H265_PROFILE_TIER_LEVEL_H_
+#define API_VIDEO_CODECS_H265_PROFILE_TIER_LEVEL_H_
+
+#include <string>
+
+#include "absl/types/optional.h"
+#include "api/video_codecs/sdp_video_format.h"
+#include "rtc_base/system/rtc_export.h"
+
+namespace webrtc {
+
+// Profiles can be found at:
+// https://www.itu.int/rec/T-REC-H.265
+// The enum values match the number specified in the SDP.
+enum class H265Profile {
+ kProfileMain = 1,
+ kProfileMain10 = 2,
+ kProfileMainStill = 3,
+ kProfileRangeExtensions = 4,
+ kProfileHighThroughput = 5,
+ kProfileMultiviewMain = 6,
+ kProfileScalableMain = 7,
+ kProfile3dMain = 8,
+ kProfileScreenContentCoding = 9,
+ kProfileScalableRangeExtensions = 10,
+ kProfileHighThroughputScreenContentCoding = 11,
+};
+
+// Tiers can be found at https://www.itu.int/rec/T-REC-H.265
+enum class H265Tier {
+ kTier0,
+ kTier1,
+};
+
+// All values are equal to 30 times the level number.
+enum class H265Level {
+ kLevel1 = 30,
+ kLevel2 = 60,
+ kLevel2_1 = 63,
+ kLevel3 = 90,
+ kLevel3_1 = 93,
+ kLevel4 = 120,
+ kLevel4_1 = 123,
+ kLevel5 = 150,
+ kLevel5_1 = 153,
+ kLevel5_2 = 156,
+ kLevel6 = 180,
+ kLevel6_1 = 183,
+ kLevel6_2 = 186,
+};
+
+struct H265ProfileTierLevel {
+ constexpr H265ProfileTierLevel(H265Profile profile,
+ H265Tier tier,
+ H265Level level)
+ : profile(profile), tier(tier), level(level) {}
+ H265Profile profile;
+ H265Tier tier;
+ H265Level level;
+};
+
+// Helper function to convert H265Profile to std::string.
+RTC_EXPORT std::string H265ProfileToString(H265Profile profile);
+
+// Helper function to convert H265Tier to std::string.
+RTC_EXPORT std::string H265TierToString(H265Tier tier);
+
+// Helper function to convert H265Level to std::string.
+RTC_EXPORT std::string H265LevelToString(H265Level level);
+
+// Helper function to get H265Profile from profile string.
+RTC_EXPORT absl::optional<H265Profile> StringToH265Profile(
+ const std::string& profile);
+
+// Helper function to get H265Tier from tier string.
+RTC_EXPORT absl::optional<H265Tier> StringToH265Tier(const std::string& tier);
+
+// Helper function to get H265Level from level string.
+RTC_EXPORT absl::optional<H265Level> StringToH265Level(
+ const std::string& level);
+
+// Parses an SDP key-value map of format parameters to retrive an H265
+// profile/tier/level. Returns an H265ProfileTierlevel by setting its
+// members. profile defaults to `kProfileMain` if no profile-id is specified.
+// tier defaults to "kTier0" if no tier-flag is specified.
+// level defaults to "kLevel3_1" if no level-id is specified.
+// Returns empty value if any of the profile/tier/level key is present but
+// contains an invalid value.
+RTC_EXPORT absl::optional<H265ProfileTierLevel> ParseSdpForH265ProfileTierLevel(
+ const SdpVideoFormat::Parameters& params);
+
+// Returns true if the parameters have the same H265 profile or neither contains
+// an H265 profile, otherwise false.
+bool H265IsSameProfileTierLevel(const SdpVideoFormat::Parameters& params1,
+ const SdpVideoFormat::Parameters& params2);
+
+} // namespace webrtc
+
+#endif // API_VIDEO_CODECS_H265_PROFILE_TIER_LEVEL_H_
diff --git a/api/video_codecs/test/BUILD.gn b/api/video_codecs/test/BUILD.gn
index eda8c56..7bfe86e 100644
--- a/api/video_codecs/test/BUILD.gn
+++ b/api/video_codecs/test/BUILD.gn
@@ -19,6 +19,10 @@
"video_encoder_software_fallback_wrapper_unittest.cc",
]
+ if (rtc_use_h265) {
+ sources += [ "h265_profile_tier_level_unittest.cc" ]
+ }
+
deps = [
":video_decoder_factory_template_tests",
":video_encoder_factory_template_tests",
diff --git a/api/video_codecs/test/h265_profile_tier_level_unittest.cc b/api/video_codecs/test/h265_profile_tier_level_unittest.cc
new file mode 100644
index 0000000..a9fdf96
--- /dev/null
+++ b/api/video_codecs/test/h265_profile_tier_level_unittest.cc
@@ -0,0 +1,248 @@
+/*
+ * Copyright (c) 2023 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "api/video_codecs/h265_profile_tier_level.h"
+
+#include <string>
+
+#include "absl/types/optional.h"
+#include "test/gtest.h"
+
+namespace webrtc {
+
+TEST(H265ProfileTierLevel, TestLevelToString) {
+ EXPECT_EQ(H265LevelToString(H265Level::kLevel1), "30");
+ EXPECT_EQ(H265LevelToString(H265Level::kLevel2), "60");
+ EXPECT_EQ(H265LevelToString(H265Level::kLevel2_1), "63");
+ EXPECT_EQ(H265LevelToString(H265Level::kLevel3), "90");
+ EXPECT_EQ(H265LevelToString(H265Level::kLevel3_1), "93");
+ EXPECT_EQ(H265LevelToString(H265Level::kLevel4), "120");
+ EXPECT_EQ(H265LevelToString(H265Level::kLevel4_1), "123");
+ EXPECT_EQ(H265LevelToString(H265Level::kLevel5), "150");
+ EXPECT_EQ(H265LevelToString(H265Level::kLevel5_1), "153");
+ EXPECT_EQ(H265LevelToString(H265Level::kLevel5_2), "156");
+ EXPECT_EQ(H265LevelToString(H265Level::kLevel6), "180");
+ EXPECT_EQ(H265LevelToString(H265Level::kLevel6_1), "183");
+ EXPECT_EQ(H265LevelToString(H265Level::kLevel6_2), "186");
+}
+
+TEST(H265ProfileTierLevel, TestProfileToString) {
+ EXPECT_EQ(H265ProfileToString(H265Profile::kProfileMain), "1");
+ EXPECT_EQ(H265ProfileToString(H265Profile::kProfileMain10), "2");
+ EXPECT_EQ(H265ProfileToString(H265Profile::kProfileMainStill), "3");
+ EXPECT_EQ(H265ProfileToString(H265Profile::kProfileRangeExtensions), "4");
+ EXPECT_EQ(H265ProfileToString(H265Profile::kProfileHighThroughput), "5");
+ EXPECT_EQ(H265ProfileToString(H265Profile::kProfileMultiviewMain), "6");
+ EXPECT_EQ(H265ProfileToString(H265Profile::kProfileScalableMain), "7");
+ EXPECT_EQ(H265ProfileToString(H265Profile::kProfile3dMain), "8");
+ EXPECT_EQ(H265ProfileToString(H265Profile::kProfileScreenContentCoding), "9");
+ EXPECT_EQ(H265ProfileToString(H265Profile::kProfileScalableRangeExtensions),
+ "10");
+ EXPECT_EQ(H265ProfileToString(
+ H265Profile::kProfileHighThroughputScreenContentCoding),
+ "11");
+}
+
+TEST(H265ProfileTierLevel, TestTierToString) {
+ EXPECT_EQ(H265TierToString(H265Tier::kTier0), "0");
+ EXPECT_EQ(H265TierToString(H265Tier::kTier1), "1");
+}
+
+TEST(H265ProfileTierLevel, TestStringToProfile) {
+ // Invalid profiles.
+ EXPECT_FALSE(StringToH265Profile("0"));
+ EXPECT_FALSE(StringToH265Profile("12"));
+
+ // Malformed profiles
+ EXPECT_FALSE(StringToH265Profile(""));
+ EXPECT_FALSE(StringToH265Profile(" 1"));
+ EXPECT_FALSE(StringToH265Profile("12x"));
+ EXPECT_FALSE(StringToH265Profile("x12"));
+ EXPECT_FALSE(StringToH265Profile("gggg"));
+
+ // Valid profiles.
+ EXPECT_EQ(StringToH265Profile("1"), H265Profile::kProfileMain);
+ EXPECT_EQ(StringToH265Profile("2"), H265Profile::kProfileMain10);
+ EXPECT_EQ(StringToH265Profile("4"), H265Profile::kProfileRangeExtensions);
+}
+
+TEST(H265ProfileTierLevel, TestStringToLevel) {
+ // Invalid levels.
+ EXPECT_FALSE(StringToH265Level("0"));
+ EXPECT_FALSE(StringToH265Level("200"));
+
+ // Malformed levels.
+ EXPECT_FALSE(StringToH265Level(""));
+ EXPECT_FALSE(StringToH265Level(" 30"));
+ EXPECT_FALSE(StringToH265Level("30x"));
+ EXPECT_FALSE(StringToH265Level("x30"));
+ EXPECT_FALSE(StringToH265Level("ggggg"));
+
+ // Valid levels.
+ EXPECT_EQ(StringToH265Level("30"), H265Level::kLevel1);
+ EXPECT_EQ(StringToH265Level("93"), H265Level::kLevel3_1);
+ EXPECT_EQ(StringToH265Level("183"), H265Level::kLevel6_1);
+}
+
+TEST(H265ProfileTierLevel, TestStringToTier) {
+ // Invalid tiers.
+ EXPECT_FALSE(StringToH265Tier("4"));
+ EXPECT_FALSE(StringToH265Tier("-1"));
+
+ // Malformed tiers.
+ EXPECT_FALSE(StringToH265Tier(""));
+ EXPECT_FALSE(StringToH265Tier(" 1"));
+ EXPECT_FALSE(StringToH265Tier("t1"));
+
+ // Valid tiers.
+ EXPECT_EQ(StringToH265Tier("0"), H265Tier::kTier0);
+ EXPECT_EQ(StringToH265Tier("1"), H265Tier::kTier1);
+}
+
+TEST(H265ProfileTierLevel, TestParseSdpProfileTierLevelAllEmpty) {
+ const absl::optional<H265ProfileTierLevel> profile_tier_level =
+ ParseSdpForH265ProfileTierLevel(SdpVideoFormat::Parameters());
+ EXPECT_TRUE(profile_tier_level);
+ EXPECT_EQ(H265Profile::kProfileMain, profile_tier_level->profile);
+ EXPECT_EQ(H265Level::kLevel3_1, profile_tier_level->level);
+ EXPECT_EQ(H265Tier::kTier0, profile_tier_level->tier);
+}
+
+TEST(H265ProfileTierLevel, TestParseSdpProfileTierLevelPartialEmpty) {
+ SdpVideoFormat::Parameters params;
+ params["profile-id"] = "1";
+ params["tier-flag"] = "0";
+ absl::optional<H265ProfileTierLevel> profile_tier_level =
+ ParseSdpForH265ProfileTierLevel(params);
+ EXPECT_TRUE(profile_tier_level);
+ EXPECT_EQ(H265Profile::kProfileMain, profile_tier_level->profile);
+ EXPECT_EQ(H265Level::kLevel3_1, profile_tier_level->level);
+ EXPECT_EQ(H265Tier::kTier0, profile_tier_level->tier);
+
+ params.clear();
+ params["profile-id"] = "2";
+ profile_tier_level = ParseSdpForH265ProfileTierLevel(params);
+ EXPECT_TRUE(profile_tier_level);
+ EXPECT_EQ(H265Profile::kProfileMain10, profile_tier_level->profile);
+ EXPECT_EQ(H265Level::kLevel3_1, profile_tier_level->level);
+ EXPECT_EQ(H265Tier::kTier0, profile_tier_level->tier);
+
+ params.clear();
+ params["level-id"] = "180";
+ profile_tier_level = ParseSdpForH265ProfileTierLevel(params);
+ EXPECT_TRUE(profile_tier_level);
+ EXPECT_EQ(H265Profile::kProfileMain, profile_tier_level->profile);
+ EXPECT_EQ(H265Level::kLevel6, profile_tier_level->level);
+ EXPECT_EQ(H265Tier::kTier0, profile_tier_level->tier);
+}
+
+TEST(H265ProfileTierLevel, TestParseSdpProfileTierLevelInvalid) {
+ SdpVideoFormat::Parameters params;
+
+ // Invalid profile-tier-level combination.
+ params["profile-id"] = "1";
+ params["tier-flag"] = "1";
+ params["level-id"] = "93";
+ absl::optional<H265ProfileTierLevel> profile_tier_level =
+ ParseSdpForH265ProfileTierLevel(params);
+ EXPECT_FALSE(profile_tier_level);
+ params.clear();
+ params["profile-id"] = "1";
+ params["tier-flag"] = "4";
+ params["level-id"] = "180";
+ profile_tier_level = ParseSdpForH265ProfileTierLevel(params);
+ EXPECT_FALSE(profile_tier_level);
+
+ // Valid profile-tier-level combination.
+ params.clear();
+ params["profile-id"] = "1";
+ params["tier-flag"] = "0";
+ params["level-id"] = "153";
+ profile_tier_level = ParseSdpForH265ProfileTierLevel(params);
+ EXPECT_TRUE(profile_tier_level);
+}
+
+TEST(H265ProfileTierLevel, TestToStringRoundTrip) {
+ SdpVideoFormat::Parameters params;
+ params["profile-id"] = "1";
+ params["tier-flag"] = "0";
+ params["level-id"] = "93";
+ absl::optional<H265ProfileTierLevel> profile_tier_level =
+ ParseSdpForH265ProfileTierLevel(params);
+ EXPECT_TRUE(profile_tier_level);
+ EXPECT_EQ("1", H265ProfileToString(profile_tier_level->profile));
+ EXPECT_EQ("0", H265TierToString(profile_tier_level->tier));
+ EXPECT_EQ("93", H265LevelToString(profile_tier_level->level));
+
+ params.clear();
+ params["profile-id"] = "2";
+ params["tier-flag"] = "1";
+ params["level-id"] = "180";
+ profile_tier_level = ParseSdpForH265ProfileTierLevel(params);
+ EXPECT_TRUE(profile_tier_level);
+ EXPECT_EQ("2", H265ProfileToString(profile_tier_level->profile));
+ EXPECT_EQ("1", H265TierToString(profile_tier_level->tier));
+ EXPECT_EQ("180", H265LevelToString(profile_tier_level->level));
+}
+
+TEST(H265ProfileTierLevel, TestProfileTierLevelCompare) {
+ SdpVideoFormat::Parameters params1;
+ SdpVideoFormat::Parameters params2;
+
+ // None of profile-id/tier-flag/level-id is specified,
+ EXPECT_TRUE(H265IsSameProfileTierLevel(params1, params2));
+
+ // Same non-empty PTL
+ params1["profile-id"] = "1";
+ params1["tier-flag"] = "0";
+ params1["level-id"] = "120";
+ params2["profile-id"] = "1";
+ params2["tier-flag"] = "0";
+ params2["level-id"] = "120";
+ EXPECT_TRUE(H265IsSameProfileTierLevel(params1, params2));
+
+ // Different profiles.
+ params1.clear();
+ params2.clear();
+ params1["profile-id"] = "1";
+ params2["profile-id"] = "2";
+ EXPECT_FALSE(H265IsSameProfileTierLevel(params1, params2));
+
+ // Different levels.
+ params1.clear();
+ params2.clear();
+ params1["profile-id"] = "1";
+ params2["profile-id"] = "1";
+ params1["level-id"] = "93";
+ params2["level-id"] = "183";
+ EXPECT_FALSE(H265IsSameProfileTierLevel(params1, params2));
+
+ // Different tiers.
+ params1.clear();
+ params2.clear();
+ params1["profile-id"] = "1";
+ params2["profile-id"] = "1";
+ params1["level-id"] = "93";
+ params2["level-id"] = "93";
+ params1["tier-flag"] = "0";
+ params2["tier-flag"] = "1";
+ EXPECT_FALSE(H265IsSameProfileTierLevel(params1, params2));
+
+ // One of the SdpVideoFormat::Parameters is invalid.
+ params1.clear();
+ params2.clear();
+ params1["profile-id"] = "1";
+ params2["profile-id"] = "1";
+ params1["tier-flag"] = "0";
+ params2["tier-flag"] = "4";
+ EXPECT_FALSE(H265IsSameProfileTierLevel(params1, params2));
+}
+
+} // namespace webrtc
diff --git a/media/base/media_constants.cc b/media/base/media_constants.cc
index 911f510..94ce3c7 100644
--- a/media/base/media_constants.cc
+++ b/media/base/media_constants.cc
@@ -103,6 +103,7 @@
const char kVp9CodecName[] = "VP9";
const char kAv1CodecName[] = "AV1";
const char kH264CodecName[] = "H264";
+const char kH265CodecName[] = "H265";
// RFC 6184 RTP Payload Format for H.264 video
const char kH264FmtpProfileLevelId[] = "profile-level-id";
@@ -113,6 +114,16 @@
const char kH264ProfileLevelConstrainedBaseline[] = "42e01f";
const char kH264ProfileLevelConstrainedHigh[] = "640c1f";
+// RFC 7798 RTP Payload Format for H.265 video
+const char kH265FmtpProfileSpace[] = "profile-space";
+const char kH265FmtpTierFlag[] = "tier-flag";
+const char kH265FmtpProfileId[] = "profile-id";
+const char kH265FmtpLevelId[] = "level-id";
+const char kH265FmtpProfileCompatibilityIndicator[] =
+ "profile-compatibility-indicator";
+const char kH265FmtpInteropConstraints[] = "interop-constraints";
+const char kH265FmtpTxMode[] = "tx-mode";
+
const char kVP9ProfileId[] = "profile-id";
const int kDefaultVideoMaxFramerate = 60;
diff --git a/media/base/media_constants.h b/media/base/media_constants.h
index ca3213e..3321aac 100644
--- a/media/base/media_constants.h
+++ b/media/base/media_constants.h
@@ -123,6 +123,7 @@
RTC_EXPORT extern const char kVp9CodecName[];
RTC_EXPORT extern const char kAv1CodecName[];
RTC_EXPORT extern const char kH264CodecName[];
+RTC_EXPORT extern const char kH265CodecName[];
// RFC 6184 RTP Payload Format for H.264 video
RTC_EXPORT extern const char kH264FmtpProfileLevelId[];
@@ -133,6 +134,19 @@
extern const char kH264ProfileLevelConstrainedBaseline[];
extern const char kH264ProfileLevelConstrainedHigh[];
+// RFC 7798 RTP Payload Format for H.265 video.
+// According to RFC 7742, the sprop parameters MUST NOT be included
+// in SDP generated by WebRTC, so for H.265 we don't handle them, though
+// current H.264 implementation honors them when receiving
+// sprop-parameter-sets in SDP.
+RTC_EXPORT extern const char kH265FmtpProfileSpace[];
+RTC_EXPORT extern const char kH265FmtpTierFlag[];
+RTC_EXPORT extern const char kH265FmtpProfileId[];
+RTC_EXPORT extern const char kH265FmtpLevelId[];
+RTC_EXPORT extern const char kH265FmtpProfileCompatibilityIndicator[];
+RTC_EXPORT extern const char kH265FmtpInteropConstraints[];
+RTC_EXPORT extern const char kH265FmtpTxMode[];
+
extern const char kVP9ProfileId[];
extern const int kDefaultVideoMaxFramerate;
