1/*
2 *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#include "webrtc/modules/rtp_rtcp/source/h264_bitstream_parser.h"
12
13#include "testing/gtest/include/gtest/gtest.h"
14
15namespace webrtc {
16
17// SPS/PPS part of below chunk.
18uint8_t kH264SpsPps[] = {0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x80, 0x20, 0xda,
19                         0x01, 0x40, 0x16, 0xe8, 0x06, 0xd0, 0xa1, 0x35, 0x00,
20                         0x00, 0x00, 0x01, 0x68, 0xce, 0x06, 0xe2};
21
22// Contains enough of the image slice to contain slice QP.
23uint8_t kH264BitstreamChunk[] = {
24    0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x80, 0x20, 0xda, 0x01, 0x40, 0x16,
25    0xe8, 0x06, 0xd0, 0xa1, 0x35, 0x00, 0x00, 0x00, 0x01, 0x68, 0xce, 0x06,
26    0xe2, 0x00, 0x00, 0x00, 0x01, 0x65, 0xb8, 0x40, 0xf0, 0x8c, 0x03, 0xf2,
27    0x75, 0x67, 0xad, 0x41, 0x64, 0x24, 0x0e, 0xa0, 0xb2, 0x12, 0x1e, 0xf8,
28};
29
30// Contains enough of the image slice to contain slice QP.
31uint8_t kH264BitstreamNextImageSliceChunk[] = {
32    0x00, 0x00, 0x00, 0x01, 0x41, 0xe2, 0x01, 0x16, 0x0e, 0x3e, 0x2b, 0x86,
33};
34
35TEST(H264BitstreamParserTest, ReportsNoQpWithoutParsedSlices) {
36  H264BitstreamParser h264_parser;
37  int qp;
38  EXPECT_FALSE(h264_parser.GetLastSliceQp(&qp));
39}
40
41TEST(H264BitstreamParserTest, ReportsNoQpWithOnlyParsedPpsAndSpsSlices) {
42  H264BitstreamParser h264_parser;
43  h264_parser.ParseBitstream(kH264SpsPps, sizeof(kH264SpsPps));
44  int qp;
45  EXPECT_FALSE(h264_parser.GetLastSliceQp(&qp));
46}
47
48TEST(H264BitstreamParserTest, ReportsLastSliceQpForImageSlices) {
49  H264BitstreamParser h264_parser;
50  h264_parser.ParseBitstream(kH264BitstreamChunk, sizeof(kH264BitstreamChunk));
51  int qp;
52  ASSERT_TRUE(h264_parser.GetLastSliceQp(&qp));
53  EXPECT_EQ(35, qp);
54
55  // Parse an additional image slice.
56  h264_parser.ParseBitstream(kH264BitstreamNextImageSliceChunk,
57                             sizeof(kH264BitstreamNextImageSliceChunk));
58  ASSERT_TRUE(h264_parser.GetLastSliceQp(&qp));
59  EXPECT_EQ(37, qp);
60}
61
62}  // namespace webrtc
63