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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef MEDIA_FORMATS_WEBM_TRACKS_BUILDER_H_ | 5 #ifndef MEDIA_FORMATS_WEBM_TRACKS_BUILDER_H_ |
| 6 #define MEDIA_FORMATS_WEBM_TRACKS_BUILDER_H_ | 6 #define MEDIA_FORMATS_WEBM_TRACKS_BUILDER_H_ |
| 7 | 7 |
| 8 #include <stdint.h> |
| 9 |
| 8 #include <list> | 10 #include <list> |
| 9 #include <string> | 11 #include <string> |
| 10 #include <vector> | 12 #include <vector> |
| 11 | 13 |
| 12 #include "base/basictypes.h" | 14 #include "base/macros.h" |
| 13 | 15 |
| 14 namespace media { | 16 namespace media { |
| 15 | 17 |
| 16 class TracksBuilder { | 18 class TracksBuilder { |
| 17 public: | 19 public: |
| 18 // If |allow_invalid_values| is false, some AddTrack() parameters will be | 20 // If |allow_invalid_values| is false, some AddTrack() parameters will be |
| 19 // basically checked and will assert if out of valid range. |codec_id|, | 21 // basically checked and will assert if out of valid range. |codec_id|, |
| 20 // |name|, |language| and any device-specific constraints are not checked. | 22 // |name|, |language| and any device-specific constraints are not checked. |
| 21 explicit TracksBuilder(bool allow_invalid_values); | 23 explicit TracksBuilder(bool allow_invalid_values); |
| 22 TracksBuilder(); // Sets |allow_invalid_values| to false. | 24 TracksBuilder(); // Sets |allow_invalid_values| to false. |
| 23 ~TracksBuilder(); | 25 ~TracksBuilder(); |
| 24 | 26 |
| 25 // Only a non-negative |default_duration| will result in a serialized | 27 // Only a non-negative |default_duration| will result in a serialized |
| 26 // kWebMIdDefaultDuration element. Note, 0 is allowed here for testing only | 28 // kWebMIdDefaultDuration element. Note, 0 is allowed here for testing only |
| 27 // if |allow_invalid_values_| is true, since it is an illegal value for | 29 // if |allow_invalid_values_| is true, since it is an illegal value for |
| 28 // DefaultDuration. Similar applies to |audio_channels|, | 30 // DefaultDuration. Similar applies to |audio_channels|, |
| 29 // |audio_sampling_frequency|, |video_pixel_width| and |video_pixel_height|. | 31 // |audio_sampling_frequency|, |video_pixel_width| and |video_pixel_height|. |
| 30 void AddVideoTrack(int track_num, | 32 void AddVideoTrack(int track_num, |
| 31 uint64 track_uid, | 33 uint64_t track_uid, |
| 32 const std::string& codec_id, | 34 const std::string& codec_id, |
| 33 const std::string& name, | 35 const std::string& name, |
| 34 const std::string& language, | 36 const std::string& language, |
| 35 int default_duration, | 37 int default_duration, |
| 36 int video_pixel_width, | 38 int video_pixel_width, |
| 37 int video_pixel_height); | 39 int video_pixel_height); |
| 38 void AddAudioTrack(int track_num, | 40 void AddAudioTrack(int track_num, |
| 39 uint64 track_uid, | 41 uint64_t track_uid, |
| 40 const std::string& codec_id, | 42 const std::string& codec_id, |
| 41 const std::string& name, | 43 const std::string& name, |
| 42 const std::string& language, | 44 const std::string& language, |
| 43 int default_duration, | 45 int default_duration, |
| 44 int audio_channels, | 46 int audio_channels, |
| 45 double audio_sampling_frequency); | 47 double audio_sampling_frequency); |
| 46 void AddTextTrack(int track_num, | 48 void AddTextTrack(int track_num, |
| 47 uint64 track_uid, | 49 uint64_t track_uid, |
| 48 const std::string& codec_id, | 50 const std::string& codec_id, |
| 49 const std::string& name, | 51 const std::string& name, |
| 50 const std::string& language); | 52 const std::string& language); |
| 51 | 53 |
| 52 std::vector<uint8> Finish(); | 54 std::vector<uint8_t> Finish(); |
| 53 | 55 |
| 54 private: | 56 private: |
| 55 void AddTrackInternal(int track_num, | 57 void AddTrackInternal(int track_num, |
| 56 int track_type, | 58 int track_type, |
| 57 uint64 track_uid, | 59 uint64_t track_uid, |
| 58 const std::string& codec_id, | 60 const std::string& codec_id, |
| 59 const std::string& name, | 61 const std::string& name, |
| 60 const std::string& language, | 62 const std::string& language, |
| 61 int default_duration, | 63 int default_duration, |
| 62 int video_pixel_width, | 64 int video_pixel_width, |
| 63 int video_pixel_height, | 65 int video_pixel_height, |
| 64 int audio_channels, | 66 int audio_channels, |
| 65 double audio_sampling_frequency); | 67 double audio_sampling_frequency); |
| 66 int GetTracksSize() const; | 68 int GetTracksSize() const; |
| 67 int GetTracksPayloadSize() const; | 69 int GetTracksPayloadSize() const; |
| 68 void WriteTracks(uint8* buffer, int buffer_size) const; | 70 void WriteTracks(uint8_t* buffer, int buffer_size) const; |
| 69 | 71 |
| 70 class Track { | 72 class Track { |
| 71 public: | 73 public: |
| 72 Track(int track_num, | 74 Track(int track_num, |
| 73 int track_type, | 75 int track_type, |
| 74 uint64 track_uid, | 76 uint64_t track_uid, |
| 75 const std::string& codec_id, | 77 const std::string& codec_id, |
| 76 const std::string& name, | 78 const std::string& name, |
| 77 const std::string& language, | 79 const std::string& language, |
| 78 int default_duration, | 80 int default_duration, |
| 79 int video_pixel_width, | 81 int video_pixel_width, |
| 80 int video_pixel_height, | 82 int video_pixel_height, |
| 81 int audio_channels, | 83 int audio_channels, |
| 82 double audio_sampling_frequency, | 84 double audio_sampling_frequency, |
| 83 bool allow_invalid_values); | 85 bool allow_invalid_values); |
| 84 | 86 |
| 85 int GetSize() const; | 87 int GetSize() const; |
| 86 void Write(uint8** buf, int* buf_size) const; | 88 void Write(uint8_t** buf, int* buf_size) const; |
| 89 |
| 87 private: | 90 private: |
| 88 int GetPayloadSize() const; | 91 int GetPayloadSize() const; |
| 89 int GetVideoPayloadSize() const; | 92 int GetVideoPayloadSize() const; |
| 90 int GetAudioPayloadSize() const; | 93 int GetAudioPayloadSize() const; |
| 91 | 94 |
| 92 int track_num_; | 95 int track_num_; |
| 93 int track_type_; | 96 int track_type_; |
| 94 int track_uid_; | 97 int track_uid_; |
| 95 std::string codec_id_; | 98 std::string codec_id_; |
| 96 std::string name_; | 99 std::string name_; |
| 97 std::string language_; | 100 std::string language_; |
| 98 int default_duration_; | 101 int default_duration_; |
| 99 int video_pixel_width_; | 102 int video_pixel_width_; |
| 100 int video_pixel_height_; | 103 int video_pixel_height_; |
| 101 int audio_channels_; | 104 int audio_channels_; |
| 102 double audio_sampling_frequency_; | 105 double audio_sampling_frequency_; |
| 103 }; | 106 }; |
| 104 | 107 |
| 105 typedef std::list<Track> TrackList; | 108 typedef std::list<Track> TrackList; |
| 106 TrackList tracks_; | 109 TrackList tracks_; |
| 107 bool allow_invalid_values_; | 110 bool allow_invalid_values_; |
| 108 | 111 |
| 109 DISALLOW_COPY_AND_ASSIGN(TracksBuilder); | 112 DISALLOW_COPY_AND_ASSIGN(TracksBuilder); |
| 110 }; | 113 }; |
| 111 | 114 |
| 112 } // namespace media | 115 } // namespace media |
| 113 | 116 |
| 114 #endif // MEDIA_FORMATS_WEBM_TRACKS_BUILDER_H_ | 117 #endif // MEDIA_FORMATS_WEBM_TRACKS_BUILDER_H_ |
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