Line data    Source code

       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           0 : bool DecodeAndConvert(const std::string& base64, std::vector<uint8_t>* binary) {
      23           0 :   return rtc::Base64::DecodeFromArray(base64.data(), base64.size(),
      24           0 :                                       rtc::Base64::DO_STRICT, binary, nullptr);
      25             : }
      26             : }  // namespace
      27             : 
      28             : namespace webrtc {
      29             : 
      30           0 : bool H264SpropParameterSets::DecodeSprop(const std::string& sprop) {
      31           0 :   size_t separator_pos = sprop.find(',');
      32           0 :   if ((separator_pos <= 0) || (separator_pos >= sprop.length() - 1)) {
      33           0 :     LOG(LS_WARNING) << "Invalid seperator position " << separator_pos << " *"
      34           0 :                     << sprop << "*";
      35           0 :     return false;
      36             :   }
      37           0 :   std::string sps_str = sprop.substr(0, separator_pos);
      38           0 :   std::string pps_str = sprop.substr(separator_pos + 1, std::string::npos);
      39           0 :   if (!DecodeAndConvert(sps_str, &sps_)) {
      40           0 :     LOG(LS_WARNING) << "Failed to decode sprop/sps *" << sprop << "*";
      41           0 :     return false;
      42             :   }
      43           0 :   if (!DecodeAndConvert(pps_str, &pps_)) {
      44           0 :     LOG(LS_WARNING) << "Failed to decode sprop/pps *" << sprop << "*";
      45           0 :     return false;
      46             :   }
      47           0 :   return true;
      48             : }
      49             : 
      50             : }  // namespace webrtc