15d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Copyright 2014 The Chromium Authors. All rights reserved. 25d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// found in the LICENSE file. 45d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 55d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#ifndef MEDIA_BASE_AUDIO_VIDEO_METADATA_EXTRACTOR_H_ 65d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#define MEDIA_BASE_AUDIO_VIDEO_METADATA_EXTRACTOR_H_ 75d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 8c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen Murdoch#include <map> 95d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <string> 100529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch#include <vector> 115d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "base/basictypes.h" 135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "media/base/media_export.h" 145d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 155d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)struct AVDictionary; 165d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 175d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)namespace media { 185d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 195d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)class DataSource; 205d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 215d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// This class extracts a string dictionary of metadata tags for audio and video 225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// files. It also provides the format name. 235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)class MEDIA_EXPORT AudioVideoMetadataExtractor { 245d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) public: 250529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch typedef std::map<std::string, std::string> TagDictionary; 260529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 270529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch struct StreamInfo { 280529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch StreamInfo(); 290529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch ~StreamInfo(); 300529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch std::string type; 310529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch TagDictionary tags; 320529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch }; 330529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 340529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch typedef std::vector<StreamInfo> StreamInfoVector; 350529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) AudioVideoMetadataExtractor(); 375d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) ~AudioVideoMetadataExtractor(); 385d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 395d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Returns whether or not the fields were successfully extracted. Should only 405d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // be called once. 41cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) bool Extract(DataSource* source, bool extract_attached_pics); 425d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 435d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Returns -1 if we cannot extract the duration. In seconds. 445d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) double duration() const; 455d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 465d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Returns -1 for containers without video. 475d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int width() const; 485d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int height() const; 495d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 505d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Returns -1 if undefined. 515d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int rotation() const; 525d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 535d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Returns -1 or an empty string if the value is undefined. 545d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const std::string& album() const; 555d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const std::string& artist() const; 565d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const std::string& comment() const; 575d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const std::string& copyright() const; 585d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const std::string& date() const; 595d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int disc() const; 605d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const std::string& encoder() const; 615d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const std::string& encoded_by() const; 625d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const std::string& genre() const; 635d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const std::string& language() const; 645d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const std::string& title() const; 655d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int track() const; 665d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 670529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch // First element is the container. Subsequent elements are the child streams. 680529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch const StreamInfoVector& stream_infos() const; 69c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen Murdoch 70cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // Empty if Extract call did not request attached images, or if no attached 71cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // images were found. 72cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) const std::vector<std::string>& attached_images_bytes() const; 73cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 745d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) private: 750529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch void ExtractDictionary(AVDictionary* metadata, TagDictionary* raw_tags); 765d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 775d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) bool extracted_; 785d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 795d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int duration_; 805d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int width_; 815d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int height_; 825d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 835d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string album_; 845d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string artist_; 855d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string comment_; 865d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string copyright_; 875d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string date_; 885d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int disc_; 895d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string encoder_; 905d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string encoded_by_; 915d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string genre_; 925d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string language_; 935d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int rotation_; 945d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string title_; 955d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int track_; 965d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 970529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch StreamInfoVector stream_infos_; 98c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen Murdoch 99cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) std::vector<std::string> attached_images_bytes_; 100cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 1015d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(AudioVideoMetadataExtractor); 1025d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)}; 1035d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1045d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} // namespace media 1055d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1065d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#endif // MEDIA_BASE_AUDIO_VIDEO_METADATA_EXTRACTOR_H_ 107