tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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av1_profile.cc (2000B)

      1 /*
      2 *  Copyright (c) 2022 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 "api/video_codecs/av1_profile.h"
     12 
     13 #include <map>
     14 #include <optional>
     15 #include <string>
     16 
     17 #include "absl/strings/string_view.h"
     18 #include "api/rtp_parameters.h"
     19 #include "media/base/media_constants.h"
     20 #include "rtc_base/string_to_number.h"
     21 
     22 namespace webrtc {
     23 
     24 absl::string_view AV1ProfileToString(AV1Profile profile) {
     25  switch (profile) {
     26    case AV1Profile::kProfile0:
     27      return "0";
     28    case AV1Profile::kProfile1:
     29      return "1";
     30    case AV1Profile::kProfile2:
     31      return "2";
     32  }
     33  return "0";
     34 }
     35 
     36 std::optional<AV1Profile> StringToAV1Profile(absl::string_view str) {
     37  const std::optional<int> i = StringToNumber<int>(str);
     38  if (!i.has_value())
     39    return std::nullopt;
     40 
     41  switch (i.value()) {
     42    case 0:
     43      return AV1Profile::kProfile0;
     44    case 1:
     45      return AV1Profile::kProfile1;
     46    case 2:
     47      return AV1Profile::kProfile2;
     48    default:
     49      return std::nullopt;
     50  }
     51 }
     52 
     53 std::optional<AV1Profile> ParseSdpForAV1Profile(
     54    const CodecParameterMap& params) {
     55  const auto profile_it = params.find(kAv1FmtpProfile);
     56  if (profile_it == params.end())
     57    return AV1Profile::kProfile0;
     58  const std::string& profile_str = profile_it->second;
     59  return StringToAV1Profile(profile_str);
     60 }
     61 
     62 bool AV1IsSameProfile(const CodecParameterMap& params1,
     63                      const CodecParameterMap& params2) {
     64  const std::optional<AV1Profile> profile = ParseSdpForAV1Profile(params1);
     65  const std::optional<AV1Profile> other_profile =
     66      ParseSdpForAV1Profile(params2);
     67  return profile && other_profile && profile == other_profile;
     68 }
     69 
     70 }  // namespace webrtc