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/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "modules/rtp_rtcp/source/rtp_format_vp8.h"
#include <memory>
#include "modules/rtp_rtcp/source/rtp_format_vp8_test_helper.h"
#include "test/gmock.h"
#include "test/gtest.h"
namespace webrtc {
namespace {
constexpr RtpPacketizer::PayloadSizeLimits kNoSizeLimits;
TEST(RtpPacketizerVp8Test, ResultPacketsAreAlmostEqualSize) {
RTPVideoHeaderVP8 hdr_info;
hdr_info.InitRTPVideoHeaderVP8();
hdr_info.pictureId = 200;
RtpFormatVp8TestHelper helper(&hdr_info, /*payload_len=*/30);
RtpPacketizer::PayloadSizeLimits limits;
limits.max_payload_len = 12; // Small enough to produce 4 packets.
RtpPacketizerVp8 packetizer(helper.payload(), limits, hdr_info);
const size_t kExpectedSizes[] = {11, 11, 12, 12};
helper.GetAllPacketsAndCheck(&packetizer, kExpectedSizes);
}
TEST(RtpPacketizerVp8Test, EqualSizeWithLastPacketReduction) {
RTPVideoHeaderVP8 hdr_info;
hdr_info.InitRTPVideoHeaderVP8();
hdr_info.pictureId = 200;
RtpFormatVp8TestHelper helper(&hdr_info, /*payload_len=*/43);
RtpPacketizer::PayloadSizeLimits limits;
limits.max_payload_len = 15; // Small enough to produce 5 packets.
limits.last_packet_reduction_len = 5;
RtpPacketizerVp8 packetizer(helper.payload(), limits, hdr_info);
// Calculated by hand. VP8 payload descriptors are 4 byte each. 5 packets is
// minimum possible to fit 43 payload bytes into packets with capacity of
// 15 - 4 = 11 and leave 5 free bytes in the last packet. All packets are
// almost equal in size, even last packet if counted with free space (which
// will be filled up the stack by extra long RTP header).
const size_t kExpectedSizes[] = {13, 13, 14, 14, 9};
helper.GetAllPacketsAndCheck(&packetizer, kExpectedSizes);
}
// Verify that non-reference bit is set.
TEST(RtpPacketizerVp8Test, NonReferenceBit) {
RTPVideoHeaderVP8 hdr_info;
hdr_info.InitRTPVideoHeaderVP8();
hdr_info.nonReference = true;
RtpFormatVp8TestHelper helper(&hdr_info, /*payload_len=*/30);
RtpPacketizer::PayloadSizeLimits limits;
limits.max_payload_len = 25; // Small enough to produce two packets.
RtpPacketizerVp8 packetizer(helper.payload(), limits, hdr_info);
const size_t kExpectedSizes[] = {16, 16};
helper.GetAllPacketsAndCheck(&packetizer, kExpectedSizes);
}
// Verify Tl0PicIdx and TID fields, and layerSync bit.
TEST(RtpPacketizerVp8Test, Tl0PicIdxAndTID) {
RTPVideoHeaderVP8 hdr_info;
hdr_info.InitRTPVideoHeaderVP8();
hdr_info.tl0PicIdx = 117;
hdr_info.temporalIdx = 2;
hdr_info.layerSync = true;
RtpFormatVp8TestHelper helper(&hdr_info, /*payload_len=*/30);
RtpPacketizerVp8 packetizer(helper.payload(), kNoSizeLimits, hdr_info);
const size_t kExpectedSizes[1] = {helper.payload_size() + 4};
helper.GetAllPacketsAndCheck(&packetizer, kExpectedSizes);
}
TEST(RtpPacketizerVp8Test, KeyIdx) {
RTPVideoHeaderVP8 hdr_info;
hdr_info.InitRTPVideoHeaderVP8();
hdr_info.keyIdx = 17;
RtpFormatVp8TestHelper helper(&hdr_info, /*payload_len=*/30);
RtpPacketizerVp8 packetizer(helper.payload(), kNoSizeLimits, hdr_info);
const size_t kExpectedSizes[1] = {helper.payload_size() + 3};
helper.GetAllPacketsAndCheck(&packetizer, kExpectedSizes);
}
// Verify TID field and KeyIdx field in combination.
TEST(RtpPacketizerVp8Test, TIDAndKeyIdx) {
RTPVideoHeaderVP8 hdr_info;
hdr_info.InitRTPVideoHeaderVP8();
hdr_info.temporalIdx = 1;
hdr_info.keyIdx = 5;
RtpFormatVp8TestHelper helper(&hdr_info, /*payload_len=*/30);
RtpPacketizerVp8 packetizer(helper.payload(), kNoSizeLimits, hdr_info);
const size_t kExpectedSizes[1] = {helper.payload_size() + 3};
helper.GetAllPacketsAndCheck(&packetizer, kExpectedSizes);
}
} // namespace
} // namespace webrtc
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