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87bcc1cab9
I've added a basic AV1 impl to Chrome Remote Desktop and am looking into what is needed to test with I444 (Profile-1) in our platform. This CL adds a few helper functions, constants, and enums that can be used to configure the SDP with different AV1 profiles. More work is still needed but I wanted to get this in place first so I can build on it in the CRD host code. Change-Id: I1af9ebf31f833138e8c36e0c0a30e32289e7b58e Bug: chromium:1329660 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/264000 Reviewed-by: Rasmus Brandt <brandtr@webrtc.org> Reviewed-by: Niels Moller <nisse@webrtc.org> Commit-Queue: Joe Downing <joedow@google.com> Cr-Commit-Position: refs/heads/main@{#37182}
69 lines
2 KiB
C++
69 lines
2 KiB
C++
/*
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* Copyright (c) 2022 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/av1_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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// Parameter name in the format parameter map for AV1 video.
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const char kAV1FmtpProfile[] = "profile";
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absl::string_view AV1ProfileToString(AV1Profile profile) {
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switch (profile) {
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case AV1Profile::kProfile0:
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return "0";
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case AV1Profile::kProfile1:
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return "1";
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case AV1Profile::kProfile2:
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return "2";
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}
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return "0";
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}
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absl::optional<AV1Profile> StringToAV1Profile(absl::string_view 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 AV1Profile::kProfile0;
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case 1:
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return AV1Profile::kProfile1;
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case 2:
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return AV1Profile::kProfile2;
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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<AV1Profile> ParseSdpForAV1Profile(
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const SdpVideoFormat::Parameters& params) {
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const auto profile_it = params.find(kAV1FmtpProfile);
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if (profile_it == params.end())
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return AV1Profile::kProfile0;
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const std::string& profile_str = profile_it->second;
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return StringToAV1Profile(profile_str);
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}
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bool AV1IsSameProfile(const SdpVideoFormat::Parameters& params1,
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const SdpVideoFormat::Parameters& params2) {
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const absl::optional<AV1Profile> profile = ParseSdpForAV1Profile(params1);
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const absl::optional<AV1Profile> other_profile =
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ParseSdpForAV1Profile(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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