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1 /* | 1 /* |
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2012 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 |
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22 void TimestampScaler::ToInternal(Packet* packet) { | 22 void TimestampScaler::ToInternal(Packet* packet) { |
23 if (!packet) { | 23 if (!packet) { |
24 return; | 24 return; |
25 } | 25 } |
26 packet->timestamp = ToInternal(packet->timestamp, packet->payload_type); | 26 packet->timestamp = ToInternal(packet->timestamp, packet->payload_type); |
27 } | 27 } |
28 | 28 |
29 void TimestampScaler::ToInternal(PacketList* packet_list) { | 29 void TimestampScaler::ToInternal(PacketList* packet_list) { |
30 PacketList::iterator it; | 30 PacketList::iterator it; |
31 for (it = packet_list->begin(); it != packet_list->end(); ++it) { | 31 for (it = packet_list->begin(); it != packet_list->end(); ++it) { |
32 ToInternal(*it); | 32 ToInternal(&(*it)); |
33 } | 33 } |
34 } | 34 } |
35 | 35 |
36 uint32_t TimestampScaler::ToInternal(uint32_t external_timestamp, | 36 uint32_t TimestampScaler::ToInternal(uint32_t external_timestamp, |
37 uint8_t rtp_payload_type) { | 37 uint8_t rtp_payload_type) { |
38 const DecoderDatabase::DecoderInfo* info = | 38 const DecoderDatabase::DecoderInfo* info = |
39 decoder_database_.GetDecoderInfo(rtp_payload_type); | 39 decoder_database_.GetDecoderInfo(rtp_payload_type); |
40 if (!info) { | 40 if (!info) { |
41 // Payload type is unknown. Do not scale. | 41 // Payload type is unknown. Do not scale. |
42 return external_timestamp; | 42 return external_timestamp; |
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78 } else { | 78 } else { |
79 const int64_t internal_diff = int64_t{internal_timestamp} - internal_ref_; | 79 const int64_t internal_diff = int64_t{internal_timestamp} - internal_ref_; |
80 assert(numerator_ > 0); // Should not be possible. | 80 assert(numerator_ > 0); // Should not be possible. |
81 // Do not update references in this method. | 81 // Do not update references in this method. |
82 // Switch |denominator_| and |numerator_| to convert the other way. | 82 // Switch |denominator_| and |numerator_| to convert the other way. |
83 return external_ref_ + (internal_diff * denominator_) / numerator_; | 83 return external_ref_ + (internal_diff * denominator_) / numerator_; |
84 } | 84 } |
85 } | 85 } |
86 | 86 |
87 } // namespace webrtc | 87 } // namespace webrtc |
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