| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef MEDIA_FORMATS_WEBM_WEBM_INFO_PARSER_H_ |
| #define MEDIA_FORMATS_WEBM_WEBM_INFO_PARSER_H_ |
| |
| #include <stdint.h> |
| |
| #include "base/compiler_specific.h" |
| #include "base/macros.h" |
| #include "base/time/time.h" |
| #include "media/base/media_export.h" |
| #include "media/formats/webm/webm_parser.h" |
| |
| namespace media { |
| |
| // Parser for WebM Info element. |
| class MEDIA_EXPORT WebMInfoParser : public WebMParserClient { |
| public: |
| WebMInfoParser(); |
| ~WebMInfoParser() override; |
| |
| // Parses a WebM Info element in |buf|. |
| // |
| // Returns -1 if the parse fails. |
| // Returns 0 if more data is needed. |
| // Returns the number of bytes parsed on success. |
| int Parse(const uint8_t* buf, int size); |
| |
| int64_t timecode_scale_ns() const { return timecode_scale_ns_; } |
| double duration() const { return duration_; } |
| base::Time date_utc() const { return date_utc_; } |
| |
| private: |
| // WebMParserClient methods |
| WebMParserClient* OnListStart(int id) override; |
| bool OnListEnd(int id) override; |
| bool OnUInt(int id, int64_t val) override; |
| bool OnFloat(int id, double val) override; |
| bool OnBinary(int id, const uint8_t* data, int size) override; |
| bool OnString(int id, const std::string& str) override; |
| |
| int64_t timecode_scale_ns_; |
| double duration_; |
| base::Time date_utc_; |
| |
| DISALLOW_COPY_AND_ASSIGN(WebMInfoParser); |
| }; |
| |
| } // namespace media |
| |
| #endif // MEDIA_FORMATS_WEBM_WEBM_INFO_PARSER_H_ |