admin/webrtc_m130
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Choose RTX codec PT in lower range if codec is in lower range

Browse Source 
pc1 video mline without this change (and the previous one):
96 97 107 108 109 114 115 116 117 118 119 120 37 121 40 124 98 99 100 101 127 42 43
with this change:
96 97 103 104 107 108 109 114 115 116 117 118 39 40 45 46 98 99 100 101 119 120 121

BUG=webrtc:360058654

Change-Id: I4021daf1c62f0edf9650e12a74619035040291a8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/376022
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43838}
This commit is contained in:
Henrik Boström 2025-02-03 12:25:50 +01:00 committed by WebRTC LUCI CQ
parent 1181edda58
commit b60a5ab91c
3 changed files with 18 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
call/BUILD.gn
View File

@ -396,6 +396,7 @@ rtc_library("payload_type_picker") {
"../media:media_constants",
"../rtc_base:checks",
"../rtc_base:logging",
"../rtc_base:stringutils",
"../rtc_base:strong_alias",
"//third_party/abseil-cpp/absl/strings",
]

10
call/payload_type_picker.cc
View File

@ -25,6 +25,7 @@
#include "media/base/media_constants.h"
#include "rtc_base/checks.h"
#include "rtc_base/logging.h"
#include "rtc_base/string_encode.h"
namespace webrtc {
@ -80,6 +81,15 @@ bool CodecPrefersLowerRange(const cricket::Codec& codec) {
return true;
}
}
} else if (absl::EqualsIgnoreCase(codec.name, cricket::kRtxCodecName)) {
// For RTX prefer lower range if the associated codec is in that range.
std::string associated_pt_str;
int associated_pt;
return codec.GetParam(cricket::kCodecParamAssociatedPayloadType,
&associated_pt_str) &&
rtc::FromString(associated_pt_str, &associated_pt) &&
associated_pt >= kFirstDynamicPayloadTypeLowerRange &&
associated_pt <= kLastDynamicPayloadTypeLowerRange;
}
return false;
}

8
call/payload_type_picker_unittest.cc
View File

@ -10,6 +10,7 @@
#include "call/payload_type_picker.h"
#include "api/video_codecs/sdp_video_format.h"
#include "call/payload_type.h"
#include "media/base/codec.h"
#include "media/base/media_constants.h"
@ -205,9 +206,14 @@ TEST(PayloadTypePicker, VideoGetsTreatedSpecially) {
// Valid for high range only.
EXPECT_THAT(picker.SuggestMapping(h264_constrained, nullptr).value(), Ge(96));
EXPECT_THAT(picker.SuggestMapping(vp9_profile_2, nullptr).value(), Ge(96));
// Valud for lower range.
// Valid for lower range.
EXPECT_THAT(picker.SuggestMapping(h264_yuv444, nullptr).value(), Lt(63));
EXPECT_THAT(picker.SuggestMapping(vp9_profile_3, nullptr).value(), Lt(63));
// RTX with a primary codec in the lower range is valid for lower range.
cricket::Codec lower_range_rtx =
cricket::CreateVideoRtxCodec(cricket::Codec::kIdNotSet, 63);
EXPECT_THAT(picker.SuggestMapping(lower_range_rtx, nullptr).value(), Lt(63));
}
TEST(PayloadTypePicker, ChoosingH264Profiles) {