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_AVCSampleDependency
19
20 #include "avcsampledependencytype.h"
21 #include "atomutils.h"
22 #include "atomdefs.h"
23
AVCSampleDependencyType(MP4_FF_FILE * fp,uint32 size,uint32 type,uint32 sample_count)24 AVCSampleDependencyType::AVCSampleDependencyType(MP4_FF_FILE *fp, uint32 size, uint32 type, uint32 sample_count)
25 : FullAtom(size, _version, flags)
26 {
27 OSCL_UNUSED_ARG(type);
28 if (_success)
29 {
30 if (_version == 0)
31 {
32
33 PV_MP4_FF_ARRAY_NEW(NULL, uint8, (sample_count), _reserved);
34
35 if (_reserved == NULL)
36 {
37 _success = false;
38 _mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
39 return;
40 }
41
42 PV_MP4_FF_ARRAY_NEW(NULL, uint8, (sample_count), _sample_depends_on);
43
44 if (_sample_depends_on == NULL)
45 {
46 _success = false;
47 _mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
48 return;
49 }
50
51 PV_MP4_FF_ARRAY_NEW(NULL, uint8, (sample_count), _sample_is_depended_on);
52
53 if (_sample_is_depended_on == NULL)
54 {
55 _success = false;
56 _mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
57 return;
58 }
59
60 for (uint32 idx = 0; idx < sample_count; idx++)
61 {
62 if (!AtomUtils::read8(fp, _reserved[idx]))
63 {
64 _success = false;
65 }
66
67 _sample_depends_on[idx] = (uint8)(_reserved[idx] & ~0xF3);
68 _sample_is_depended_on[idx] = (uint8)(_reserved[idx] & ~0xFC);
69 }
70 }
71 }
72 if (!_success)
73 {
74 _mp4ErrorCode = READ_AVC_SAMPLE_DEPENDENCY_TYPE_BOX_FAILED;
75 }
76 }
77 // Destructor
~AVCSampleDependencyType()78 AVCSampleDependencyType::~AVCSampleDependencyType()
79 {
80 if (_reserved != NULL)
81 PV_MP4_ARRAY_DELETE(NULL, _reserved);
82
83 if (_sample_depends_on != NULL)
84 PV_MP4_ARRAY_DELETE(NULL, _sample_depends_on);
85
86 if (_sample_is_depended_on != NULL)
87 PV_MP4_ARRAY_DELETE(NULL, _sample_is_depended_on);
88 }
89