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de17252e8e
This is a reland of commit 63d03f586b
Original change's description:
> Unify access to SDP codec parameters
>
> which come from the a=fmtp:<pt> lines in the SDP and were used as either
> std::map<std::string, std:string>
> with three aliases,
> cricket::CodecParameterMap
> SdpAudioFormat::Parameters
> SdpVideoFormat::Parameters
>
> Use webrtc::CodecParameterMap in all places.
>
> BUG=None
>
> Change-Id: If47692bde7347834c349c6539b43309d8770e67b
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/330420
> Reviewed-by: Florent Castelli <orphis@webrtc.org>
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Commit-Queue: Philipp Hancke <phancke@microsoft.com>
> Cr-Commit-Position: refs/heads/main@{#41375}
Bug: None
Change-Id: I5f8f45688df232eb37b12fa3e56a893a1c754e17
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/331402
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#41467}
73 lines
2 KiB
C++
73 lines
2 KiB
C++
/*
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* Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "api/video_codecs/vp9_profile.h"
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#include <map>
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#include <utility>
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#include "rtc_base/string_to_number.h"
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namespace webrtc {
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// Profile information for VP9 video.
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const char kVP9FmtpProfileId[] = "profile-id";
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std::string VP9ProfileToString(VP9Profile profile) {
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switch (profile) {
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case VP9Profile::kProfile0:
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return "0";
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case VP9Profile::kProfile1:
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return "1";
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case VP9Profile::kProfile2:
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return "2";
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case VP9Profile::kProfile3:
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return "3";
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}
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return "0";
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}
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absl::optional<VP9Profile> StringToVP9Profile(const std::string& str) {
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const absl::optional<int> i = rtc::StringToNumber<int>(str);
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if (!i.has_value())
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return absl::nullopt;
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switch (i.value()) {
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case 0:
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return VP9Profile::kProfile0;
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case 1:
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return VP9Profile::kProfile1;
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case 2:
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return VP9Profile::kProfile2;
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case 3:
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return VP9Profile::kProfile3;
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default:
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return absl::nullopt;
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}
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}
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absl::optional<VP9Profile> ParseSdpForVP9Profile(
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const CodecParameterMap& params) {
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const auto profile_it = params.find(kVP9FmtpProfileId);
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if (profile_it == params.end())
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return VP9Profile::kProfile0;
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const std::string& profile_str = profile_it->second;
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return StringToVP9Profile(profile_str);
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}
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bool VP9IsSameProfile(const CodecParameterMap& params1,
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const CodecParameterMap& params2) {
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const absl::optional<VP9Profile> profile = ParseSdpForVP9Profile(params1);
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const absl::optional<VP9Profile> other_profile =
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ParseSdpForVP9Profile(params2);
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return profile && other_profile && profile == other_profile;
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}
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} // namespace webrtc
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