1 /* ------------------------------------------------------------------
2 * Copyright (C) 1998-2009 PacketVideo
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
13 * express or implied.
14 * See the License for the specific language governing permissions
15 * and limitations under the License.
16 * -------------------------------------------------------------------
17 */
18 /*********************************************************************************/
19 /* ------------------------------------------------------------------- */
20 /* MPEG-4 TextSampleEntry Class */
21 /* ------------------------------------------------------------------- */
22 /*********************************************************************************/
23 /*
24 This TextSampleEntry Class is used for text streams.
25 */
26
27 #define IMPLEMENT_TextSampleEntry
28
29 #include "boxrecord.h"
30 #include "fontrecord.h"
31 #include "stylerecord.h"
32 #include "fonttableatom.h"
33 #include "textsampleentry.h"
34 #include "atomutils.h"
35 #include "atomdefs.h"
36
37
TextSampleEntry(MP4_FF_FILE * fp,uint32 size,uint32 type)38 OSCL_EXPORT_REF TextSampleEntry:: TextSampleEntry(MP4_FF_FILE *fp, uint32 size, uint32 type)
39 : SampleEntry(fp, size, type)
40 {
41 _pparent = NULL;
42
43 _pBackgroundRGBA = NULL;
44 _pBoxRecord = NULL;
45 _pStyleRecord = NULL;
46 _pFontTableAtom = NULL;
47
48 if (_success)
49 {
50
51 AtomUtils::read32(fp, _displayFlags);
52
53 uint8 horz = 0;
54 AtomUtils::read8(fp, horz);
55 _horzJustification = (int8)horz;
56
57 uint8 vert = 0;
58 AtomUtils::read8(fp, vert);
59 _vertJustification = (int8)vert;
60
61 PV_MP4_FF_ARRAY_NEW(NULL, uint8, (4), _pBackgroundRGBA);
62
63 AtomUtils::readByteData(fp, 4, _pBackgroundRGBA);
64
65 PV_MP4_FF_NEW(fp->auditCB, BoxRecord, (fp), _pBoxRecord);
66 if (!_pBoxRecord->MP4Success())
67 {
68 _success = false;
69 _mp4ErrorCode = _pBoxRecord->GetMP4Error();
70 return;
71 }
72
73 PV_MP4_FF_NEW(fp->auditCB, StyleRecord, (fp), _pStyleRecord);
74 if (!_pStyleRecord->MP4Success())
75 {
76 _success = false;
77 _mp4ErrorCode = _pStyleRecord->GetMP4Error();
78 return;
79 }
80
81 PV_MP4_FF_NEW(fp->auditCB, FontTableAtom, (fp), _pFontTableAtom);
82 if (!_pFontTableAtom->MP4Success())
83 {
84 _success = false;
85 _mp4ErrorCode = _pFontTableAtom->GetMP4Error();
86 return;
87 }
88 }
89 }
90
91 // Destructor
~TextSampleEntry()92 OSCL_EXPORT_REF TextSampleEntry::~TextSampleEntry()
93 {
94 if (_pBackgroundRGBA != NULL)
95 {
96 PV_MP4_ARRAY_DELETE(NULL, _pBackgroundRGBA);
97 }
98 if (_pBoxRecord != NULL)
99 {
100 PV_MP4_FF_DELETE(NULL, BoxRecord, _pBoxRecord);
101 }
102 if (_pStyleRecord != NULL)
103 {
104 PV_MP4_FF_DELETE(NULL, StyleRecord, _pStyleRecord);
105 }
106 if (_pFontTableAtom != NULL)
107 {
108 PV_MP4_FF_DELETE(NULL, FontTableAtom, _pFontTableAtom);
109 }
110 }
111
getBoxTop()112 OSCL_EXPORT_REF int16 TextSampleEntry::getBoxTop()
113 {
114 if (_pBoxRecord != NULL)
115 {
116 return (_pBoxRecord->getBoxTop());
117 }
118 else
119 {
120 return -1;
121 }
122 }
123
getBoxLeft()124 OSCL_EXPORT_REF int16 TextSampleEntry::getBoxLeft()
125 {
126 if (_pBoxRecord != NULL)
127 {
128 return (_pBoxRecord->getBoxLeft());
129 }
130 else
131 {
132 return -1;
133 }
134 }
135
getBoxBottom()136 OSCL_EXPORT_REF int16 TextSampleEntry::getBoxBottom()
137 {
138 if (_pBoxRecord != NULL)
139 {
140 return (_pBoxRecord->getBoxBottom());
141 }
142 else
143 {
144 return -1;
145 }
146 }
147
getBoxRight()148 OSCL_EXPORT_REF int16 TextSampleEntry::getBoxRight()
149 {
150 if (_pBoxRecord != NULL)
151 {
152 return (_pBoxRecord->getBoxRight());
153 }
154 else
155 {
156 return -1;
157 }
158 }
getFontID()159 OSCL_EXPORT_REF uint16 TextSampleEntry::getFontID()
160 {
161 if (_pStyleRecord != NULL)
162 {
163 return _pStyleRecord-> getFontID();
164 }
165 else
166 {
167 return 0;
168 }
169 }
170
getStartChar()171 OSCL_EXPORT_REF uint16 TextSampleEntry::getStartChar()
172 {
173 if (_pStyleRecord != NULL)
174 {
175 return _pStyleRecord-> getStartChar();
176 }
177 else
178 {
179 return 0;
180 }
181 }
182
getEndChar()183 OSCL_EXPORT_REF uint16 TextSampleEntry::getEndChar()
184 {
185 if (_pStyleRecord != NULL)
186 {
187 return _pStyleRecord-> getEndChar();
188 }
189 else
190 {
191 return 0;
192 }
193 }
194
getFontStyleFlags()195 OSCL_EXPORT_REF uint8 TextSampleEntry::getFontStyleFlags()
196 {
197 if (_pStyleRecord != NULL)
198 {
199 return _pStyleRecord-> getFontStyleFlags();
200 }
201 else
202 {
203 return 0;
204 }
205 }
206
getfontSize()207 OSCL_EXPORT_REF uint8 TextSampleEntry::getfontSize()
208 {
209 if (_pStyleRecord != NULL)
210 {
211 return _pStyleRecord->getfontSize();
212 }
213 else
214 {
215 return 0;
216 }
217 }
218
getTextColourRGBA()219 OSCL_EXPORT_REF uint8* TextSampleEntry::getTextColourRGBA()
220 {
221 if (_pStyleRecord != NULL)
222 {
223 return _pStyleRecord-> getTextColourRGBA();
224 }
225 else
226 {
227 return NULL;
228 }
229 }
230
getFontListSize()231 OSCL_EXPORT_REF uint16 TextSampleEntry:: getFontListSize()
232 {
233 if (_pFontTableAtom != NULL)
234 {
235 return _pFontTableAtom-> getFontListSize();
236 }
237 else
238 {
239 return 0;
240 }
241 }
242
getFontRecordAt(uint16 index)243 OSCL_EXPORT_REF FontRecord* TextSampleEntry::getFontRecordAt(uint16 index)
244 {
245 if (_pFontTableAtom != NULL)
246 {
247 return _pFontTableAtom->getFontRecordAt(index);
248 }
249 else
250 {
251 return NULL;
252 }
253 }
254
getObjectTypeIndication() const255 uint8 TextSampleEntry::getObjectTypeIndication() const
256 {
257 return TIMED_TEXT;
258 }
259
260
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264
265