| // Copyright 2019 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 CHROME_SERVICES_MEDIA_GALLERY_UTIL_VIDEO_THUMBNAIL_PARSER_H_ |
| #define CHROME_SERVICES_MEDIA_GALLERY_UTIL_VIDEO_THUMBNAIL_PARSER_H_ |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/macros.h" |
| #include "base/memory/scoped_refptr.h" |
| #include "base/sequenced_task_runner.h" |
| #include "chrome/services/media_gallery_util/media_parser.h" |
| |
| namespace media { |
| class DataSource; |
| } // namespace media |
| |
| // Parses a video frame. This object is created on utility process main thread, |
| // and will perform actual parsing on a media thread. |
| class VideoThumbnailParser { |
| public: |
| explicit VideoThumbnailParser(std::unique_ptr<media::DataSource> source); |
| ~VideoThumbnailParser(); |
| |
| void Start(MediaParser::ExtractVideoFrameCallback video_frame_callback); |
| |
| private: |
| // The data source that provides video data. Created and destroyed on utility |
| // main thread because it's binded to mojo object. Must be used on |
| // |media_task_runner_|. |
| std::unique_ptr<media::DataSource> data_source_; |
| |
| scoped_refptr<base::SequencedTaskRunner> media_task_runner_; |
| |
| DISALLOW_COPY_AND_ASSIGN(VideoThumbnailParser); |
| }; |
| |
| #endif // CHROME_SERVICES_MEDIA_GALLERY_UTIL_VIDEO_THUMBNAIL_PARSER_H_ |