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Diffstat (limited to '')
-rw-r--r-- | third_party/libwebrtc/modules/video_coding/h264_sprop_parameter_sets.cc | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/video_coding/h264_sprop_parameter_sets.cc b/third_party/libwebrtc/modules/video_coding/h264_sprop_parameter_sets.cc new file mode 100644 index 0000000000..a64f8885da --- /dev/null +++ b/third_party/libwebrtc/modules/video_coding/h264_sprop_parameter_sets.cc @@ -0,0 +1,53 @@ +/* + * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "modules/video_coding/h264_sprop_parameter_sets.h" + +#include <stddef.h> +#include <stdint.h> + +#include <string> +#include <vector> + +#include "rtc_base/logging.h" +#include "rtc_base/third_party/base64/base64.h" + +namespace { + +bool DecodeAndConvert(const std::string& base64, std::vector<uint8_t>* binary) { + return rtc::Base64::DecodeFromArray(base64.data(), base64.size(), + rtc::Base64::DO_STRICT, binary, nullptr); +} +} // namespace + +namespace webrtc { + +bool H264SpropParameterSets::DecodeSprop(const std::string& sprop) { + size_t separator_pos = sprop.find(','); + RTC_LOG(LS_INFO) << "Parsing sprop \"" << sprop << "\""; + if ((separator_pos <= 0) || (separator_pos >= sprop.length() - 1)) { + RTC_LOG(LS_WARNING) << "Invalid seperator position " << separator_pos + << " *" << sprop << "*"; + return false; + } + std::string sps_str = sprop.substr(0, separator_pos); + std::string pps_str = sprop.substr(separator_pos + 1, std::string::npos); + if (!DecodeAndConvert(sps_str, &sps_)) { + RTC_LOG(LS_WARNING) << "Failed to decode sprop/sps *" << sprop << "*"; + return false; + } + if (!DecodeAndConvert(pps_str, &pps_)) { + RTC_LOG(LS_WARNING) << "Failed to decode sprop/pps *" << sprop << "*"; + return false; + } + return true; +} + +} // namespace webrtc |