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 "common_video/h264/h264_bitstream_parser.h"
12
13 #include "test/gtest.h"
14
15 namespace webrtc {
16
17 // SPS/PPS part of below chunk.
18 uint8_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.
23 uint8_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 uint8_t kH264BitstreamChunkCabac[] = {
31 0x00, 0x00, 0x00, 0x01, 0x27, 0x64, 0x00, 0x0d, 0xac, 0x52, 0x30,
32 0x50, 0x7e, 0xc0, 0x5a, 0x81, 0x01, 0x01, 0x18, 0x56, 0xbd, 0xef,
33 0x80, 0x80, 0x00, 0x00, 0x00, 0x01, 0x28, 0xfe, 0x09, 0x8b,
34 };
35
36 // Contains enough of the image slice to contain slice QP.
37 uint8_t kH264BitstreamNextImageSliceChunk[] = {
38 0x00, 0x00, 0x00, 0x01, 0x41, 0xe2, 0x01, 0x16, 0x0e, 0x3e, 0x2b, 0x86,
39 };
40
41 // Contains enough of the image slice to contain slice QP.
42 uint8_t kH264BitstreamNextImageSliceChunkCabac[] = {
43 0x00, 0x00, 0x00, 0x01, 0x21, 0xe1, 0x05, 0x11, 0x3f, 0x9a, 0xae, 0x46,
44 0x70, 0xbf, 0xc1, 0x4a, 0x16, 0x8f, 0x51, 0xf4, 0xca, 0xfb, 0xa3, 0x65,
45 };
46
TEST(H264BitstreamParserTest,ReportsNoQpWithoutParsedSlices)47 TEST(H264BitstreamParserTest, ReportsNoQpWithoutParsedSlices) {
48 H264BitstreamParser h264_parser;
49 EXPECT_FALSE(h264_parser.GetLastSliceQp().has_value());
50 }
51
TEST(H264BitstreamParserTest,ReportsNoQpWithOnlyParsedPpsAndSpsSlices)52 TEST(H264BitstreamParserTest, ReportsNoQpWithOnlyParsedPpsAndSpsSlices) {
53 H264BitstreamParser h264_parser;
54 h264_parser.ParseBitstream(kH264SpsPps);
55 EXPECT_FALSE(h264_parser.GetLastSliceQp().has_value());
56 }
57
TEST(H264BitstreamParserTest,ReportsLastSliceQpForImageSlices)58 TEST(H264BitstreamParserTest, ReportsLastSliceQpForImageSlices) {
59 H264BitstreamParser h264_parser;
60 h264_parser.ParseBitstream(kH264BitstreamChunk);
61 absl::optional<int> qp = h264_parser.GetLastSliceQp();
62 ASSERT_TRUE(qp.has_value());
63 EXPECT_EQ(35, *qp);
64
65 // Parse an additional image slice.
66 h264_parser.ParseBitstream(kH264BitstreamNextImageSliceChunk);
67 qp = h264_parser.GetLastSliceQp();
68 ASSERT_TRUE(qp.has_value());
69 EXPECT_EQ(37, *qp);
70 }
71
TEST(H264BitstreamParserTest,ReportsLastSliceQpForCABACImageSlices)72 TEST(H264BitstreamParserTest, ReportsLastSliceQpForCABACImageSlices) {
73 H264BitstreamParser h264_parser;
74 h264_parser.ParseBitstream(kH264BitstreamChunkCabac);
75 EXPECT_FALSE(h264_parser.GetLastSliceQp().has_value());
76
77 // Parse an additional image slice.
78 h264_parser.ParseBitstream(kH264BitstreamNextImageSliceChunkCabac);
79 absl::optional<int> qp = h264_parser.GetLastSliceQp();
80 ASSERT_TRUE(qp.has_value());
81 EXPECT_EQ(24, *qp);
82 }
83
84 } // namespace webrtc
85