OLD | NEW |
1 /* | 1 /* |
2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 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 | 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 | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #include "webrtc/modules/audio_coding/neteq/tools/fake_decode_from_file.h" | 11 #include "webrtc/modules/audio_coding/neteq/tools/fake_decode_from_file.h" |
12 | 12 |
13 #include "webrtc/base/checks.h" | 13 #include "webrtc/base/checks.h" |
14 #include "webrtc/base/safe_conversions.h" | 14 #include "webrtc/base/safe_conversions.h" |
15 #include "webrtc/modules/rtp_rtcp/source/byte_io.h" | 15 #include "webrtc/modules/rtp_rtcp/source/byte_io.h" |
16 | 16 |
17 namespace webrtc { | 17 namespace webrtc { |
18 namespace test { | 18 namespace test { |
19 | 19 |
20 int FakeDecodeFromFile::DecodeInternal(const uint8_t* encoded, | 20 int FakeDecodeFromFile::DecodeInternal(const uint8_t* encoded, |
21 size_t encoded_len, | 21 size_t encoded_len, |
22 int sample_rate_hz, | 22 int sample_rate_hz, |
23 int16_t* decoded, | 23 int16_t* decoded, |
24 SpeechType* speech_type) { | 24 SpeechType* speech_type) { |
25 if (encoded_len == 0) { | 25 if (encoded_len == 0) { |
26 // Decoder is asked to produce codec-internal comfort noise. | 26 // Decoder is asked to produce codec-internal comfort noise. |
27 RTC_DCHECK(!encoded); // NetEq always sends nullptr in this case. | 27 RTC_DCHECK(!encoded); // NetEq always sends nullptr in this case. |
28 RTC_DCHECK(cng_mode_); | 28 RTC_DCHECK(cng_mode_); |
29 RTC_DCHECK_GT(last_decoded_length_, 0u); | 29 RTC_DCHECK_GT(last_decoded_length_, 0); |
30 std::fill_n(decoded, last_decoded_length_, 0); | 30 std::fill_n(decoded, last_decoded_length_, 0); |
31 *speech_type = kComfortNoise; | 31 *speech_type = kComfortNoise; |
32 return last_decoded_length_; | 32 return last_decoded_length_; |
33 } | 33 } |
34 | 34 |
35 RTC_CHECK_GE(encoded_len, 12u); | 35 RTC_CHECK_GE(encoded_len, 12); |
36 uint32_t timestamp_to_decode = | 36 uint32_t timestamp_to_decode = |
37 ByteReader<uint32_t>::ReadLittleEndian(encoded); | 37 ByteReader<uint32_t>::ReadLittleEndian(encoded); |
38 uint32_t samples_to_decode = | 38 uint32_t samples_to_decode = |
39 ByteReader<uint32_t>::ReadLittleEndian(&encoded[4]); | 39 ByteReader<uint32_t>::ReadLittleEndian(&encoded[4]); |
40 if (samples_to_decode == 0) { | 40 if (samples_to_decode == 0) { |
41 // Number of samples in packet is unknown. | 41 // Number of samples in packet is unknown. |
42 if (last_decoded_length_ > 0) { | 42 if (last_decoded_length_ > 0) { |
43 // Use length of last decoded packet, but since this is the total for all | 43 // Use length of last decoded packet, but since this is the total for all |
44 // channels, we have to divide by 2 in the stereo case. | 44 // channels, we have to divide by 2 in the stereo case. |
45 samples_to_decode = rtc::CheckedDivExact( | 45 samples_to_decode = rtc::CheckedDivExact( |
(...skipping 13 matching lines...) Expand all Loading... |
59 RTC_CHECK(input_->Seek(jump)); | 59 RTC_CHECK(input_->Seek(jump)); |
60 } | 60 } |
61 | 61 |
62 next_timestamp_from_input_ = | 62 next_timestamp_from_input_ = |
63 rtc::Optional<uint32_t>(timestamp_to_decode + samples_to_decode); | 63 rtc::Optional<uint32_t>(timestamp_to_decode + samples_to_decode); |
64 | 64 |
65 uint32_t original_payload_size_bytes = | 65 uint32_t original_payload_size_bytes = |
66 ByteReader<uint32_t>::ReadLittleEndian(&encoded[8]); | 66 ByteReader<uint32_t>::ReadLittleEndian(&encoded[8]); |
67 if (original_payload_size_bytes == 1) { | 67 if (original_payload_size_bytes == 1) { |
68 // This is a comfort noise payload. | 68 // This is a comfort noise payload. |
69 RTC_DCHECK_GT(last_decoded_length_, 0u); | 69 RTC_DCHECK_GT(last_decoded_length_, 0); |
70 std::fill_n(decoded, last_decoded_length_, 0); | 70 std::fill_n(decoded, last_decoded_length_, 0); |
71 *speech_type = kComfortNoise; | 71 *speech_type = kComfortNoise; |
72 cng_mode_ = true; | 72 cng_mode_ = true; |
73 return last_decoded_length_; | 73 return last_decoded_length_; |
74 } | 74 } |
75 | 75 |
76 cng_mode_ = false; | 76 cng_mode_ = false; |
77 RTC_CHECK(input_->Read(static_cast<size_t>(samples_to_decode), decoded)); | 77 RTC_CHECK(input_->Read(static_cast<size_t>(samples_to_decode), decoded)); |
78 | 78 |
79 if (stereo_) { | 79 if (stereo_) { |
80 InputAudioFile::DuplicateInterleaved(decoded, samples_to_decode, 2, | 80 InputAudioFile::DuplicateInterleaved(decoded, samples_to_decode, 2, |
81 decoded); | 81 decoded); |
82 samples_to_decode *= 2; | 82 samples_to_decode *= 2; |
83 } | 83 } |
84 | 84 |
85 *speech_type = kSpeech; | 85 *speech_type = kSpeech; |
86 return last_decoded_length_ = samples_to_decode; | 86 return last_decoded_length_ = samples_to_decode; |
87 } | 87 } |
88 | 88 |
89 void FakeDecodeFromFile::PrepareEncoded(uint32_t timestamp, | 89 void FakeDecodeFromFile::PrepareEncoded(uint32_t timestamp, |
90 size_t samples, | 90 size_t samples, |
91 size_t original_payload_size_bytes, | 91 size_t original_payload_size_bytes, |
92 rtc::ArrayView<uint8_t> encoded) { | 92 rtc::ArrayView<uint8_t> encoded) { |
93 RTC_CHECK_GE(encoded.size(), 12u); | 93 RTC_CHECK_GE(encoded.size(), 12); |
94 ByteWriter<uint32_t>::WriteLittleEndian(&encoded[0], timestamp); | 94 ByteWriter<uint32_t>::WriteLittleEndian(&encoded[0], timestamp); |
95 ByteWriter<uint32_t>::WriteLittleEndian(&encoded[4], | 95 ByteWriter<uint32_t>::WriteLittleEndian(&encoded[4], |
96 rtc::checked_cast<uint32_t>(samples)); | 96 rtc::checked_cast<uint32_t>(samples)); |
97 ByteWriter<uint32_t>::WriteLittleEndian( | 97 ByteWriter<uint32_t>::WriteLittleEndian( |
98 &encoded[8], rtc::checked_cast<uint32_t>(original_payload_size_bytes)); | 98 &encoded[8], rtc::checked_cast<uint32_t>(original_payload_size_bytes)); |
99 } | 99 } |
100 | 100 |
101 } // namespace test | 101 } // namespace test |
102 } // namespace webrtc | 102 } // namespace webrtc |
OLD | NEW |