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Diffstat (limited to 'third_party/libwebrtc/api/video_codecs/h265_profile_tier_level.h')
-rw-r--r-- | third_party/libwebrtc/api/video_codecs/h265_profile_tier_level.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/video_codecs/h265_profile_tier_level.h b/third_party/libwebrtc/api/video_codecs/h265_profile_tier_level.h new file mode 100644 index 0000000000..3056d2b623 --- /dev/null +++ b/third_party/libwebrtc/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_
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