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Add default AV1 parameters to SdpVideoFormat comparison

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BUG=webrtc:15703

Change-Id: Ib3195b61b27c38a27d851119cdbf55c679b839c8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/337540
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Reviewed-by: Sergey Silkin <ssilkin@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41681}
This commit is contained in:
Philipp Hancke 2024-02-07 07:51:39 +01:00 committed by WebRTC LUCI CQ
parent 5c7bc9fa02
commit 6de9d6add0
1 changed files with 36 additions and 4 deletions
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40
api/video_codecs/sdp_video_format.cc
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@ -29,14 +29,21 @@ namespace webrtc {
namespace {
std::string H264GetPacketizationModeOrDefault(const CodecParameterMap& params) {
const auto it = params.find(cricket::kH264FmtpPacketizationMode);
std::string GetFmtpParameterOrDefault(const CodecParameterMap& params,
const std::string& name,
const std::string& default_value) {
const auto it = params.find(name);
if (it != params.end()) {
return it->second;
}
return default_value;
}
std::string H264GetPacketizationModeOrDefault(const CodecParameterMap& params) {
// If packetization-mode is not present, default to "0".
// https://tools.ietf.org/html/rfc6184#section-6.2
return "0";
return GetFmtpParameterOrDefault(params, cricket::kH264FmtpPacketizationMode,
"0");
}
bool H264IsSamePacketizationMode(const CodecParameterMap& left,
@ -45,6 +52,28 @@ bool H264IsSamePacketizationMode(const CodecParameterMap& left,
H264GetPacketizationModeOrDefault(right);
}
std::string AV1GetTierOrDefault(const CodecParameterMap& params) {
// If the parameter is not present, the tier MUST be inferred to be 0.
// https://aomediacodec.github.io/av1-rtp-spec/#72-sdp-parameters
return GetFmtpParameterOrDefault(params, cricket::kAv1FmtpTier, "0");
}
bool AV1IsSameTier(const CodecParameterMap& left,
const CodecParameterMap& right) {
return AV1GetTierOrDefault(left) == AV1GetTierOrDefault(right);
}
std::string AV1GetLevelIdxOrDefault(const CodecParameterMap& params) {
// If the parameter is not present, it MUST be inferred to be 5 (level 3.1).
// https://aomediacodec.github.io/av1-rtp-spec/#72-sdp-parameters
return GetFmtpParameterOrDefault(params, cricket::kAv1FmtpLevelIdx, "5");
}
bool AV1IsSameLevelIdx(const CodecParameterMap& left,
const CodecParameterMap& right) {
return AV1GetLevelIdxOrDefault(left) == AV1GetLevelIdxOrDefault(right);
}
// Some (video) codecs are actually families of codecs and rely on parameters
// to distinguish different incompatible family members.
bool IsSameCodecSpecific(const SdpVideoFormat& format1,
@ -62,7 +91,9 @@ bool IsSameCodecSpecific(const SdpVideoFormat& format1,
case kVideoCodecVP9:
return VP9IsSameProfile(format1.parameters, format2.parameters);
case kVideoCodecAV1:
return AV1IsSameProfile(format1.parameters, format2.parameters);
return AV1IsSameProfile(format1.parameters, format2.parameters) &&
AV1IsSameTier(format1.parameters, format2.parameters) &&
AV1IsSameLevelIdx(format1.parameters, format2.parameters);
#ifdef RTC_ENABLE_H265
case kVideoCodecH265:
return H265IsSameProfileTierLevel(format1.parameters, format2.parameters);
@ -71,6 +102,7 @@ bool IsSameCodecSpecific(const SdpVideoFormat& format1,
return true;
}
}
} // namespace
SdpVideoFormat::SdpVideoFormat(const std::string& name) : name(name) {}