1 /* 2 MIT License 3 4 Copyright (c) 2016 Błażej Szczygieł 5 6 Permission is hereby granted, free of charge, to any person obtaining a copy 7 of this software and associated documentation files (the "Software"), to deal 8 in the Software without restriction, including without limitation the rights 9 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 copies of the Software, and to permit persons to whom the Software is 11 furnished to do so, subject to the following conditions: 12 13 The above copyright notice and this permission notice shall be included in all 14 copies or substantial portions of the Software. 15 16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 SOFTWARE. 23 */ 24 25 #ifndef WEBMDEMUXER_HPP 26 #define WEBMDEMUXER_HPP 27 28 #include <stddef.h> 29 30 namespace mkvparser { 31 class IMkvReader; 32 class Segment; 33 class Cluster; 34 class Block; 35 class BlockEntry; 36 class VideoTrack; 37 class AudioTrack; 38 } 39 40 class WebMFrame 41 { 42 WebMFrame(const WebMFrame &); 43 void operator =(const WebMFrame &); 44 public: 45 WebMFrame(); 46 ~WebMFrame(); 47 isValid() const48 inline bool isValid() const 49 { 50 return bufferSize > 0; 51 } 52 53 long bufferSize, bufferCapacity; 54 unsigned char *buffer; 55 double time; 56 bool key; 57 }; 58 59 class WebMDemuxer 60 { 61 WebMDemuxer(const WebMDemuxer &); 62 void operator =(const WebMDemuxer &); 63 public: 64 enum VIDEO_CODEC 65 { 66 NO_VIDEO, 67 VIDEO_VP8, 68 VIDEO_VP9 69 }; 70 enum AUDIO_CODEC 71 { 72 NO_AUDIO, 73 AUDIO_VORBIS, 74 AUDIO_OPUS 75 }; 76 77 WebMDemuxer(mkvparser::IMkvReader *reader, int videoTrack = 0, int audioTrack = 0); 78 ~WebMDemuxer(); 79 isOpen() const80 inline bool isOpen() const 81 { 82 return m_isOpen; 83 } isEOS() const84 inline bool isEOS() const 85 { 86 return m_eos; 87 } 88 89 double getLength() const; 90 91 VIDEO_CODEC getVideoCodec() const; 92 int getWidth() const; 93 int getHeight() const; 94 95 AUDIO_CODEC getAudioCodec() const; 96 const unsigned char *getAudioExtradata(size_t &size) const; // Needed for Vorbis 97 double getSampleRate() const; 98 int getChannels() const; 99 int getAudioDepth() const; 100 101 bool readFrame(WebMFrame *videoFrame, WebMFrame *audioFrame); 102 103 private: 104 inline bool notSupportedTrackNumber(long videoTrackNumber, long audioTrackNumber) const; 105 106 mkvparser::IMkvReader *m_reader; 107 mkvparser::Segment *m_segment; 108 109 const mkvparser::Cluster *m_cluster; 110 const mkvparser::Block *m_block; 111 const mkvparser::BlockEntry *m_blockEntry; 112 113 int m_blockFrameIndex; 114 115 const mkvparser::VideoTrack *m_videoTrack; 116 VIDEO_CODEC m_vCodec; 117 118 const mkvparser::AudioTrack *m_audioTrack; 119 AUDIO_CODEC m_aCodec; 120 121 bool m_isOpen; 122 bool m_eos; 123 }; 124 125 #endif // WEBMDEMUXER_HPP 126