diff options
Diffstat (limited to 'third_party/libwebrtc/api/video_codecs/h265_profile_tier_level.cc')
-rw-r--r-- | third_party/libwebrtc/api/video_codecs/h265_profile_tier_level.cc | 496 |
1 files changed, 248 insertions, 248 deletions
diff --git a/third_party/libwebrtc/api/video_codecs/h265_profile_tier_level.cc b/third_party/libwebrtc/api/video_codecs/h265_profile_tier_level.cc index f5b376e287..f4dcebb25a 100644 --- a/third_party/libwebrtc/api/video_codecs/h265_profile_tier_level.cc +++ b/third_party/libwebrtc/api/video_codecs/h265_profile_tier_level.cc @@ -1,248 +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
+/* + * 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 CodecParameterMap& 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 CodecParameterMap& params1, + const CodecParameterMap& 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 |