| // Copyright 2023 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef MEDIA_MUXERS_MP4_TYPE_CONVERSION_H_ |
| #define MEDIA_MUXERS_MP4_TYPE_CONVERSION_H_ |
| |
| #include "base/strings/string_piece.h" |
| #include "media/base/media_export.h" |
| |
| namespace media { |
| |
| // Convert to ISO time, seconds since midnight, Jan. 1, 1904, in UTC time. |
| // base::Time time1904; |
| // base::Time::FromUTCString("1904-01-01 00:00:00 UTC", &time1904); |
| // 9561628800 = time1904.ToDeltaSinceWindowsEpoch().InSeconds(); |
| static constexpr int64_t k1601To1904DeltaInSeconds = INT64_C(9561628800); |
| |
| static constexpr uint16_t kUndefinedLanguageCode = |
| 0x55C4; // "und" on ISO 639-2/T. |
| |
| uint16_t MEDIA_EXPORT |
| ConvertIso639LanguageCodeToU16(const base::StringPiece input_language); |
| |
| } // namespace media |
| |
| #endif // MEDIA_MUXERS_MP4_TYPE_CONVERSION_H_ |
