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 #define IMPLEMENT_MovieExtendsAtom
19
20 #include "movieextendsatom.h"
21
22 typedef Oscl_Vector <PVA_FF_TrackExtendsAtom*, OsclMemAllocator> PVA_FF_TrackExtendsAtomVecType;
23
24 // constructor
PVA_FF_MovieExtendsAtom()25 PVA_FF_MovieExtendsAtom::PVA_FF_MovieExtendsAtom()
26 : PVA_FF_Atom(MOVIE_EXTENDS_ATOM)
27 {
28 PV_MP4_FF_NEW(fp->auditCB, PVA_FF_MovieExtendsHeaderAtom, (), _pMehdAtom);
29 _pMehdAtom->setParent(this);
30
31 PV_MP4_FF_NEW(fp->auditCB, PVA_FF_TrackExtendsAtomVecType, (), _pTrexAtomVec);
32
33 recomputeSize();
34
35 }
36
37 //destructor
~PVA_FF_MovieExtendsAtom()38 PVA_FF_MovieExtendsAtom::~PVA_FF_MovieExtendsAtom()
39 {
40 PV_MP4_FF_DELETE(NULL, PVA_FF_MovieExtendsHeaderAtom, _pMehdAtom);
41
42 // Delete trex atoms
43 for (uint32 ii = 0; ii < _pTrexAtomVec->size(); ii++)
44 {
45 PV_MP4_FF_DELETE(NULL, PVA_FF_TrackExtendAtom, (*_pTrexAtomVec)[ii]);
46 }
47 PV_MP4_FF_TEMPLATED_DELETE(NULL, PVA_FF_TrackExtendsAtomVecType, Oscl_Vector, _pTrexAtomVec);
48
49 }
50
51
52 // returns pointer to movie extension header atom
53 PVA_FF_MovieExtendsHeaderAtom*
getMehdAtom()54 PVA_FF_MovieExtendsAtom::getMehdAtom()
55 {
56 return _pMehdAtom;
57 }
58
59
60 // set movie fragment duration
61 void
setMovieFragmentDuration(uint32 duration)62 PVA_FF_MovieExtendsAtom::setMovieFragmentDuration(uint32 duration)
63 {
64 _pMehdAtom->setFragmentDuration(duration);
65 }
66
67
68 // update fragment duration
69 void
updateMovieFragmentDuration(uint32 ts)70 PVA_FF_MovieExtendsAtom::updateMovieFragmentDuration(uint32 ts)
71 {
72
73 _pMehdAtom->updateMovieFragmentDuration(ts);
74 }
75
76 // write fragment duration into target file
77 void
writeMovieFragmentDuration(MP4_AUTHOR_FF_FILE_IO_WRAP * fp)78 PVA_FF_MovieExtendsAtom::writeMovieFragmentDuration(MP4_AUTHOR_FF_FILE_IO_WRAP* fp)
79 {
80 _pMehdAtom->writeMovieFragmentDuration(fp);
81 }
82
83 // return fragement duration
84 uint32
getDuration()85 PVA_FF_MovieExtendsAtom::getDuration()
86 {
87 return _pMehdAtom->getFragmentDuration();
88 }
89
90
91 // add new trex atom to the list
92 void
addTrexAtom(PVA_FF_TrackExtendsAtom * pTrexAtom)93 PVA_FF_MovieExtendsAtom::addTrexAtom(PVA_FF_TrackExtendsAtom *pTrexAtom)
94 {
95 _pTrexAtomVec->push_back(pTrexAtom);
96 pTrexAtom->setParent(this);
97
98 recomputeSize();
99 }
100
101
102 // returns trex atom corressponding to track id
103 PVA_FF_TrackExtendsAtom*
getTrexAtom(uint32 trackId)104 PVA_FF_MovieExtendsAtom::getTrexAtom(uint32 trackId)
105 {
106 if (_pTrexAtomVec->size() != 0)
107 {
108 for (uint32 ii = 0; ii < _pTrexAtomVec->size(); ii++)
109 {
110 if (trackId == ((*_pTrexAtomVec)[ii])->getTrackId())
111 return ((*_pTrexAtomVec)[ii]);
112 }
113 }
114
115 return NULL;
116 }
117
118
119 // Recomputes the size of the current atom by checking all contained atoms
120 void
recomputeSize()121 PVA_FF_MovieExtendsAtom::recomputeSize()
122 {
123 int32 size = getDefaultSize(); // From base class
124
125 // add size of mehd atom
126 size += _pMehdAtom->getSize();
127
128 // add size of Trex atoms
129 if (_pTrexAtomVec->size() != 0)
130 {
131 for (uint32 ii = 0; ii < _pTrexAtomVec->size(); ii++)
132 {
133 size += ((*_pTrexAtomVec)[ii])->getSize();
134 }
135 }
136
137 _size = size;
138
139 // Update the size of the parent atom since this child atom may have changed
140 if (_pparent != NULL)
141 {
142 _pparent->recomputeSize();
143 }
144 }
145
146
147 // Write the atom into target file
148 bool
renderToFileStream(MP4_AUTHOR_FF_FILE_IO_WRAP * fp)149 PVA_FF_MovieExtendsAtom::renderToFileStream(MP4_AUTHOR_FF_FILE_IO_WRAP* fp)
150 {
151 uint32 rendered = 0;
152
153 if (!renderAtomBaseMembers(fp))
154 {
155 return false;
156 }
157 rendered += getDefaultSize();
158
159 // Render the movie extend header atom
160 if (!_pMehdAtom->renderToFileStream(fp))
161 {
162 return false;
163 }
164 rendered += getMehdAtom()->getSize();
165
166 // render track extend atoms
167 if (_pTrexAtomVec->size() != 0)
168 {
169 for (uint32 ii = 0; ii < _pTrexAtomVec->size(); ii++)
170 {
171 if (!((*_pTrexAtomVec)[ii])->renderToFileStream(fp))
172 {
173 return false;
174 }
175 rendered += ((*_pTrexAtomVec)[ii])->getSize();
176 }
177 }
178
179 return true;
180 }
181