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c1cc6a36b2
as required by https://aomediacodec.github.io/av1-rtp-spec/#72-sdp-parameters Also unify usage of profile fmtp parameter. Most notably this causes SDP answers to include the default values. These default values correspond to libaom's default values for AV1E_SET_TARGET_SEQ_LEVEL_IDX, AV1E_SET_TIER_MASK as used in https://source.chromium.org/chromium/chromium/src/+/main:third_party/libaom/source/libaom/aom/aomcx.h and g_profile in aom_codec_enc_cfg https://source.chromium.org/chromium/chromium/src/+/main:third_party/libaom/source/libaom/aom/aom_encoder.h;l=415;drc=b58207f5aecc39db7d3da766e7d171e5d2c3598e Note: AV1 is inconsistently cased in variable/struct/method/class names. The canonical casing should probably be "Av1" since it is an acronym standing for "AOMedia Video 1". BUG=webrtc:15703 Change-Id: I11864b7666fea906cd1a0759c7ad45997beab90e Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/331360 Reviewed-by: Sergey Silkin <ssilkin@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Philipp Hancke <phancke@microsoft.com> Cr-Commit-Position: refs/heads/main@{#41654}
67 lines
1.9 KiB
C++
67 lines
1.9 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 "media/base/media_constants.h"
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#include "rtc_base/string_to_number.h"
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namespace webrtc {
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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 CodecParameterMap& params) {
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const auto profile_it = params.find(cricket::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 CodecParameterMap& params1,
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const CodecParameterMap& 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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