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| 1 /* |
| 2 * Copyright (c) 2016 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/video_coding/h264_sprop_parameter_sets.h" |
| 12 |
| 13 #include <string> |
| 14 #include <vector> |
| 15 |
| 16 #include "webrtc/base/base64.h" |
| 17 #include "webrtc/base/basictypes.h" |
| 18 #include "webrtc/base/logging.h" |
| 19 |
| 20 namespace { |
| 21 |
| 22 bool DecodeAndConvert(const std::string& base64, std::vector<uint8_t>* binary) { |
| 23 // TODO(johan): Directly decode to std::vector<uint8_t> when available. |
| 24 std::vector<char> tmp; |
| 25 if (!rtc::Base64::DecodeFromArray(base64.data(), base64.size(), |
| 26 rtc::Base64::DO_STRICT, &tmp, nullptr)) { |
| 27 return false; |
| 28 } |
| 29 const uint8_t* data = reinterpret_cast<uint8_t*>(tmp.data()); |
| 30 binary->assign(data, data + tmp.size()); |
| 31 return true; |
| 32 } |
| 33 } // namespace |
| 34 |
| 35 namespace webrtc { |
| 36 |
| 37 bool H264SpropParameterSets::DecodeSprop(const std::string& sprop) { |
| 38 size_t separator_pos = sprop.find(','); |
| 39 if ((separator_pos <= 0) || (separator_pos >= sprop.length() - 1)) { |
| 40 LOG(LS_WARNING) << "Invalid seperator position " << separator_pos << " *" |
| 41 << sprop << "*"; |
| 42 return false; |
| 43 } |
| 44 std::string sps_str = sprop.substr(0, separator_pos); |
| 45 std::string pps_str = sprop.substr(separator_pos + 1, std::string::npos); |
| 46 if (!DecodeAndConvert(sps_str, &sps_)) { |
| 47 LOG(LS_WARNING) << "Failed to decode sprop/sps *" << sprop << "*"; |
| 48 return false; |
| 49 } |
| 50 if (!DecodeAndConvert(pps_str, &pps_)) { |
| 51 LOG(LS_WARNING) << "Failed to decode sprop/pps *" << sprop << "*"; |
| 52 return false; |
| 53 } |
| 54 return true; |
| 55 } |
| 56 |
| 57 } // namespace webrtc |
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