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Diffstat (limited to '')
-rw-r--r-- | third_party/libwebrtc/api/video_codecs/vp9_profile.cc | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/video_codecs/vp9_profile.cc b/third_party/libwebrtc/api/video_codecs/vp9_profile.cc new file mode 100644 index 0000000000..7e627cc080 --- /dev/null +++ b/third_party/libwebrtc/api/video_codecs/vp9_profile.cc @@ -0,0 +1,73 @@ +/* + * Copyright (c) 2021 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/vp9_profile.h" + +#include <map> +#include <utility> + +#include "rtc_base/string_to_number.h" + +namespace webrtc { + +// Profile information for VP9 video. +const char kVP9FmtpProfileId[] = "profile-id"; + +std::string VP9ProfileToString(VP9Profile profile) { + switch (profile) { + case VP9Profile::kProfile0: + return "0"; + case VP9Profile::kProfile1: + return "1"; + case VP9Profile::kProfile2: + return "2"; + case VP9Profile::kProfile3: + return "3"; + } + return "0"; +} + +absl::optional<VP9Profile> StringToVP9Profile(const std::string& str) { + const absl::optional<int> i = rtc::StringToNumber<int>(str); + if (!i.has_value()) + return absl::nullopt; + + switch (i.value()) { + case 0: + return VP9Profile::kProfile0; + case 1: + return VP9Profile::kProfile1; + case 2: + return VP9Profile::kProfile2; + case 3: + return VP9Profile::kProfile3; + default: + return absl::nullopt; + } +} + +absl::optional<VP9Profile> ParseSdpForVP9Profile( + const SdpVideoFormat::Parameters& params) { + const auto profile_it = params.find(kVP9FmtpProfileId); + if (profile_it == params.end()) + return VP9Profile::kProfile0; + const std::string& profile_str = profile_it->second; + return StringToVP9Profile(profile_str); +} + +bool VP9IsSameProfile(const SdpVideoFormat::Parameters& params1, + const SdpVideoFormat::Parameters& params2) { + const absl::optional<VP9Profile> profile = ParseSdpForVP9Profile(params1); + const absl::optional<VP9Profile> other_profile = + ParseSdpForVP9Profile(params2); + return profile && other_profile && profile == other_profile; +} + +} // namespace webrtc |