2 Copyright 2005-2008 Mark Calderbank
3 Copyright 2007 Marten Richter (AC3 support)
5 This file is part of VOMP.
7 VOMP is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 VOMP is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with VOMP; if not, write to the Free Software Foundation, Inc.,
19 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24 Thanks go to Jon Gettler of the MVPMC project and Stephen Rice for
25 the demuxer in mvpmc. It was used in the creation of this demuxer;
26 however, no code was copied verbatim.
44 PESPacket(const PESPacket& packet);
45 PESPacket& operator=(const PESPacket& packet);
47 void init(UCHAR type, UCHAR sub=0);
49 int write(const UCHAR* buf, int len);
51 UCHAR operator[] (UINT index) const;
52 // return data[index] if in bounds, else 0
53 // so no proper error condition but never mind for now
54 const UCHAR* getData() const { return data; }
55 UINT getLength() const { return length; }
56 UINT getSize() const { return size; }
57 UCHAR getPacketType() const { return packetType; }
58 void setSubstream(UCHAR s) { substream = s; }
59 UCHAR getSubstream() const { return substream; }
60 ULLONG getPTS() const;
61 bool hasPTS() const { return (getPTS() != PTS_INVALID); }
63 UINT findPictureHeader(bool h264) const;
64 UINT findSeqHeader(bool h264) const;
65 UINT findSeqExtHeader(bool h264) const;
66 UINT countPictureHeaders(bool h264) const;
67 static const ULLONG PTS_INVALID = (1LL << 33);
72 void copyFrom(const PESPacket& packet);
78 UINT mutable seq_header; // 0 = no, 1 = unknown, else = header offset
86 static Demuxer* getInstance();
87 int init(Callback* tcallback, DrainTarget* audio, DrainTarget* video,
88 DrainTarget* teletext,
89 ULONG demuxMemoryV, ULONG demuxMemoryA, ULONG demuxMemoryT, double fps=25.,
90 DVBSubtitles* tsubtitles=NULL);
95 void setVideoStream(int id);
96 //TODO HANS next virtual necessary?
97 //virtual void setAudioStream(int id);
98 void setAudioStream(int id);
99 void setTeletextStream(int id);
100 void setDVBSubtitleStream(int id);
101 bool writeAudio(bool * dataavail=NULL);
102 bool writeVideo(bool * dataavail=NULL);
103 bool writeTeletext(bool * dataavail=NULL);
105 virtual int scan(UCHAR* buf, int len) = 0;
106 virtual int findPTS(UCHAR* buf, int len, ULLONG* dest) = 0;
107 virtual int put(UCHAR* buf, int len) = 0;
108 virtual void setFrameNum(ULONG frame) {}
109 virtual void setPacketNum(ULONG packet) {}
110 virtual ULONG getFrameNumFromPTS(ULLONG pts) {return 0;}
111 virtual ULONG getPacketNum() {return 0;}
113 bool* getmpAudioChannels(); //Maybe virtual ?
114 bool* getac3AudioChannels(); //Maybe virtual ?
115 bool* getSubtitleChannels();
116 int getselAudioChannel();
117 int getselSubtitleChannel();
118 bool ish264() {return h264;}
119 void seth264(bool newh264){h264=newh264;}
121 int getHorizontalSize() { return horizontal_size; }
122 int getVerticalSize() { return vertical_size; }
123 int getAspectRatio(int *tparx,int *tpary) {
124 *tparx=parx; *tpary=pary;return aspect_ratio; }
125 int getFrameRate() { return frame_rate; }
126 int getBitRate() { return bit_rate; }
127 bool getInterlaced() { return interlaced;}
128 ULLONG getVideoPTS() { return video_pts; }
129 ULLONG getAudioPTS() { return audio_pts; }
139 // Remove all data from a buffer apart from video PES packets.
140 // Returns the length of the reduced data.
141 // removed *static function*, due to DemuxerTS
142 virtual UINT stripAudio(UCHAR* buf, UINT len);
143 void changeTimes(UCHAR* buf, UINT len,UINT playtime);
145 // Scan a buffer to see if video packets are present.
146 // Returns true if video exists; false if not.
147 // removed *static function* for h264 detection
148 static bool scanForVideo(UCHAR* buf, UINT len, bool &ish264);
152 PESTYPE_PRIVATE_1 = 0xBD,
155 PESTYPE_AUD1, PESTYPE_AUD2, PESTYPE_AUD3, PESTYPE_AUD4,
156 PESTYPE_AUD5, PESTYPE_AUD6, PESTYPE_AUD7, PESTYPE_AUD8,
157 PESTYPE_AUD9, PESTYPE_AUD10, PESTYPE_AUD11, PESTYPE_AUD12,
158 PESTYPE_AUD13, PESTYPE_AUD14, PESTYPE_AUD15, PESTYPE_AUD16,
159 PESTYPE_AUD17, PESTYPE_AUD18, PESTYPE_AUD19, PESTYPE_AUD20,
160 PESTYPE_AUD21, PESTYPE_AUD22, PESTYPE_AUD23, PESTYPE_AUD24,
161 PESTYPE_AUD25, PESTYPE_AUD26, PESTYPE_AUD27, PESTYPE_AUD28,
162 PESTYPE_AUD29, PESTYPE_AUD30, PESTYPE_AUD31,
163 PESTYPE_AUDMAX = PESTYPE_AUD31,
166 PESTYPE_VID1, PESTYPE_VID2, PESTYPE_VID3, PESTYPE_VID4,
167 PESTYPE_VID5, PESTYPE_VID6, PESTYPE_VID7, PESTYPE_VID8,
168 PESTYPE_VID9, PESTYPE_VID10, PESTYPE_VID11, PESTYPE_VID12,
169 PESTYPE_VID13, PESTYPE_VID14, PESTYPE_VID15,
170 PESTYPE_VIDMAX = PESTYPE_VID15
172 enum PESTYPE_SUBSTREAM
174 PESTYPE_SUBSTREAM_TELETEXT0 = 0x10,
175 PESTYPE_SUBSTREAM_TELETEXT1,PESTYPE_SUBSTREAM_TELETEXT2, PESTYPE_SUBSTREAM_TELETEXT3,
176 PESTYPE_SUBSTREAM_TELETEXT4,PESTYPE_SUBSTREAM_TELETEXT5,PESTYPE_SUBSTREAM_TELETEXT6,
177 PESTYPE_SUBSTREAM_TELETEXT7, PESTYPE_SUBSTREAM_TELETEXT8, PESTYPE_SUBSTREAM_TELETEXT9,
178 PESTYPE_SUBSTREAM_TELETEXT10,PESTYPE_SUBSTREAM_TELETEXT11,PESTYPE_SUBSTREAM_TELETEXT12,
179 PESTYPE_SUBSTREAM_TELETEXT13,PESTYPE_SUBSTREAM_TELETEXT14,PESTYPE_SUBSTREAM_TELETEXT15,
180 PESTYPE_SUBSTREAM_TELETEXTMAX=PESTYPE_SUBSTREAM_TELETEXT15,
181 PESTYPE_SUBSTREAM_DVBSUBTITLE0=0x20,
182 PESTYPE_SUBSTREAM_DVBSUBTITLE1,PESTYPE_SUBSTREAM_DVBSUBTITLE2,PESTYPE_SUBSTREAM_DVBSUBTITLE3,
183 PESTYPE_SUBSTREAM_DVBSUBTITLE4,PESTYPE_SUBSTREAM_DVBSUBTITLE5,PESTYPE_SUBSTREAM_DVBSUBTITLE6,
184 PESTYPE_SUBSTREAM_DVBSUBTITLE7,
185 PESTYPE_SUBSTREAM_DVBSUBTITLEMAX=PESTYPE_SUBSTREAM_DVBSUBTITLE7,
186 PESTYPE_SUBSTREAM_AC30 = 0x80,
187 PESTYPE_SUBSTREAM_AC31,PESTYPE_SUBSTREAM_AC32, PESTYPE_SUBSTREAM_AC33,
188 PESTYPE_SUBSTREAM_AC34,PESTYPE_SUBSTREAM_AC35,PESTYPE_SUBSTREAM_AC36,
189 PESTYPE_SUBSTREAM_AC37,
190 PESTYPE_SUBSTREAM_AC3MAX = PESTYPE_SUBSTREAM_AC37
194 // Operations on PES packets
195 bool submitPacket(PESPacket&);
196 void parsePacketDetails(PESPacket&);
198 // General demuxer objects and status indicators
199 static Demuxer* instance;
202 DVBSubtitles* subtitles;
203 Stream teletextstream;
209 int video_current, audio_current, teletext_current, subtitle_current;
213 // Video stream information
214 void setAspectRatio(enum AspectRatio, int taspectx, int taspecty);
223 enum AspectRatio aspect_ratio;
228 ULLONG video_pts_seek;
231 bool isteletextdecoded;
234 unsigned int packetnum;
237 static const int FrameRates[9];
242 bool avail_mpaudchan[PESTYPE_AUDMAX-PESTYPE_AUD0+1];
243 bool avail_ac3audchan[PESTYPE_SUBSTREAM_AC3MAX-PESTYPE_SUBSTREAM_AC30+1];
244 bool avail_dvbsubtitlechan[PESTYPE_SUBSTREAM_DVBSUBTITLEMAX-PESTYPE_SUBSTREAM_DVBSUBTITLE0+1];