Use RtcpPacket to send SLI in RtcpSender
BUG=webrtc:2450
Review URL: https://codereview.webrtc.org/1268383002
Cr-Commit-Position: refs/heads/master@{#9695}
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_sender.cc b/webrtc/modules/rtp_rtcp/source/rtcp_sender.cc
index 57c77a9..066b179 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_sender.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_sender.cc
@@ -593,31 +593,18 @@
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
RTCPSender::BuildResult RTCPSender::BuildSLI(RtcpContext* ctx) {
- // sanity
- if (ctx->position + 16 >= IP_PACKET_SIZE)
+ rtcp::Sli sli;
+ sli.From(ssrc_);
+ sli.To(remote_ssrc_);
+ // Crop picture id to 6 least significant bits.
+ sli.WithPictureId(ctx->picture_id & 0x3F);
+ sli.WithFirstMb(0);
+ sli.WithNumberOfMb(0x1FFF); // 13 bits, only ones for now.
+
+ PacketBuiltCallback callback(ctx);
+ if (!callback.BuildPacket(sli))
return BuildResult::kTruncated;
- // add slice loss indicator
- uint8_t FMT = 2;
- *ctx->AllocateData(1) = 0x80 + FMT;
- *ctx->AllocateData(1) = 206;
-
- // Used fixed length of 3
- *ctx->AllocateData(1) = 0;
- *ctx->AllocateData(1) = 3;
-
- // Add our own SSRC
- ByteWriter<uint32_t>::WriteBigEndian(ctx->AllocateData(4), ssrc_);
-
- // Add the remote SSRC
- ByteWriter<uint32_t>::WriteBigEndian(ctx->AllocateData(4), remote_ssrc_);
-
- // Add first, number & picture ID 6 bits
- // first = 0, 13 - bits
- // number = 0x1fff, 13 - bits only ones for now
- uint32_t sliField = (0x1fff << 6) + (0x3f & ctx->picture_id);
- ByteWriter<uint32_t>::WriteBigEndian(ctx->AllocateData(4), sliField);
-
return BuildResult::kSuccess;
}
diff --git a/webrtc/modules/rtp_rtcp/test/testAPI/test_api_rtcp.cc b/webrtc/modules/rtp_rtcp/test/testAPI/test_api_rtcp.cc
index 741b7ac..4fc89a9 100644
--- a/webrtc/modules/rtp_rtcp/test/testAPI/test_api_rtcp.cc
+++ b/webrtc/modules/rtp_rtcp/test/testAPI/test_api_rtcp.cc
@@ -23,6 +23,7 @@
using namespace webrtc;
const uint64_t kTestPictureId = 12345678;
+const uint8_t kSliPictureId = 156;
class RtcpCallback : public RtcpIntraFrameObserver {
public:
@@ -38,7 +39,7 @@
};
virtual void OnReceivedSLI(uint32_t ssrc,
uint8_t pictureId) {
- EXPECT_EQ(28, pictureId);
+ EXPECT_EQ(kSliPictureId & 0x3f, pictureId);
};
virtual void OnReceivedRPSI(uint32_t ssrc,
uint64_t pictureId) {
@@ -204,7 +205,7 @@
TEST_F(RtpRtcpRtcpTest, RTCP_PLI_RPSI) {
EXPECT_EQ(0, module1->SendRTCPReferencePictureSelection(kTestPictureId));
- EXPECT_EQ(0, module1->SendRTCPSliceLossIndication(156));
+ EXPECT_EQ(0, module1->SendRTCPSliceLossIndication(kSliPictureId));
}
TEST_F(RtpRtcpRtcpTest, RTCP_CNAME) {