1 /*--------------------------------------------------------------------------
2 Copyright (c) 2010 - 2013, The Linux Foundation. All rights reserved.
3 
4 Redistribution and use in source and binary forms, with or without
5 modification, are permitted provided that the following conditions are met:
6     * Redistributions of source code must retain the above copyright
7       notice, this list of conditions and the following disclaimer.
8     * Redistributions in binary form must reproduce the above copyright
9       notice, this list of conditions and the following disclaimer in the
10       documentation and/or other materials provided with the distribution.
11     * Neither the name of The Linux Foundation nor
12       the names of its contributors may be used to endorse or promote
13       products derived from this software without specific prior written
14       permission.
15 
16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
20 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
21 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23 OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
25 OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
26 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 --------------------------------------------------------------------------*/
28 #ifndef MP4_UTILS_H
29 #define MP4_UTILS_H
30 #include "OMX_Core.h"
31 #include "OMX_QCOMExtns.h"
32 typedef signed long long int64;
33 typedef unsigned int uint32;   /* Unsigned 32 bit value */
34 typedef unsigned short uint16;   /* Unsigned 16 bit value */
35 typedef unsigned char uint8;   /* Unsigned 8  bit value */
36 
37 typedef int int32;   /* Signed 32 bit value */
38 typedef signed short int16;   /* Signed 16 bit value */
39 typedef signed char int8;   /* Signed 8  bit value */
40 
41 typedef unsigned char byte;   /* Unsigned 8  bit value type. */
42 #define SIMPLE_PROFILE_LEVEL0            0x08
43 #define SIMPLE_PROFILE_LEVEL1            0x01
44 #define SIMPLE_PROFILE_LEVEL2            0x02
45 #define SIMPLE_PROFILE_LEVEL3            0x03
46 #define SIMPLE_PROFILE_LEVEL4A            0x04
47 #define SIMPLE_PROFILE_LEVEL5            0x05
48 #define SIMPLE_PROFILE_LEVEL6            0x06
49 #define SIMPLE_PROFILE_LEVEL0B           0x09
50 
51 #define SIMPLE_SCALABLE_PROFILE_LEVEL0                  0x10
52 #define SIMPLE_SCALABLE_PROFILE_LEVEL1                  0x11
53 #define SIMPLE_SCALABLE_PROFILE_LEVEL2                  0x12
54 
55 #define SIMPLE_SCALABLE_PROFILE_LEVEL0  0x10
56 #define SIMPLE_SCALABLE_PROFILE_LEVEL1  0x11
57 #define SIMPLE_SCALABLE_PROFILE_LEVEL2  0x12
58 #define ADVANCED_SIMPLE_PROFILE_LEVEL0  0xF0
59 #define ADVANCED_SIMPLE_PROFILE_LEVEL1  0xF1
60 #define ADVANCED_SIMPLE_PROFILE_LEVEL2  0xF2
61 #define ADVANCED_SIMPLE_PROFILE_LEVEL3  0xF3
62 #define ADVANCED_SIMPLE_PROFILE_LEVEL4  0xF4
63 #define ADVANCED_SIMPLE_PROFILE_LEVEL5  0xF5
64 
65 #define VISUAL_OBJECT_SEQUENCE_START_CODE   0x000001B0
66 #define MP4ERROR_SUCCESS     0
67 
68 #define VIDEO_OBJECT_LAYER_START_CODE_MASK  0xFFFFFFF0
69 #define VIDEO_OBJECT_LAYER_START_CODE       0x00000120
70 #define VOP_START_CODE_MASK                 0xFFFFFFFF
71 #define VOP_START_CODE                      0x000001B6
72 #define GOV_START_CODE                      0x000001B3
73 #define SHORT_HEADER_MASK                   0xFFFFFC00
74 #define SHORT_HEADER_START_MARKER           0x00008000
75 #define SHORT_HEADER_START_CODE             0x00008000
76 #define SPARK1_START_CODE                   0x00008400
77 #define MPEG4_SHAPE_RECTANGULAR               0x00
78 #define EXTENDED_PAR                        0xF
79 #define SHORT_VIDEO_START_MARKER         0x20
80 #define MP4_INVALID_VOL_PARAM   (0x0001)   // unsupported VOL parameter
81 #define MP4ERROR_UNSUPPORTED_UFEP                   -1068
82 #define MP4ERROR_UNSUPPORTED_SOURCE_FORMAT          -1069
83 #define MASK(x) (0xFFFFFFFF >> (32 - (x)))
84 #define VISUAL_OBJECT_TYPE_VIDEO_ID         0x1
85 #define VISUAL_OBJECT_START_CODE            0x000001B5
86 #define VIDEO_OBJECT_START_CODE_MASK        0xFFFFFFE0
87 #define VIDEO_OBJECT_START_CODE             0x00000100
88 
89 #define RESERVED_OBJECT_TYPE                0x0
90 #define SIMPLE_OBJECT_TYPE                  0x1
91 #define SIMPLE_SCALABLE_OBJECT_TYPE         0x2
92 #define CORE_OBJECT_TYPE                    0x3
93 #define MAIN_OBJECT_TYPE                    0x4
94 #define N_BIT_OBJECT_TYPE                   0x5
95 #define BASIC_ANIMATED_2D_TEXTURE           0x6
96 #define ANIMATED_2D_MESH                    0x7
97 #define ADVANCED_SIMPLE                     0x11
98 
99 
100 #define SIMPLE_L1_MAX_VBVBUFFERSIZE 10  /* VBV Max Buffer size=10 (p. 498)  */
101 #define SIMPLE_L1_MAX_BITRATE       160 /* is is 64kpbs or 160 400bits/sec units */
102 #define SIMPLE_L2_MAX_VBVBUFFERSIZE 40  /* VBV Max Buffer size = 40 */
103 #define SIMPLE_L2_MAX_BITRATE       320 /* 320 400bps units = 128kpbs */
104 #define SIMPLE_L3_MAX_VBVBUFFERSIZE 40  /* VBV Max Buffer size = 40 */
105 #define SIMPLE_L3_MAX_BITRATE       960 /* 960 400bps units = 384kpbs */
106 
107 /* The MP4 decoder currently supports Simple Profile@L3 */
108 #define MAX_VBVBUFFERSIZE (SIMPLE_L3_MAX_VBVBUFFERSIZE)
109 #define MAX_BITRATE       (SIMPLE_L3_MAX_BITRATE)
110 
111 #define MAX_QUANTPRECISION 9
112 #define MIN_QUANTPRECISION 3
113 
114 #define MP4_VGA_WIDTH             640
115 #define MP4_VGA_HEIGHT            480
116 #define MP4_WVGA_WIDTH            800
117 #define MP4_WVGA_HEIGHT           480
118 #define MP4_720P_WIDTH            1280
119 #define MP4_720P_HEIGHT           720
120 
121 #define MP4_MAX_DECODE_WIDTH    MP4_720P_WIDTH
122 #define MP4_MAX_DECODE_HEIGHT   MP4_720P_HEIGHT
123 
124 typedef struct {
125     unsigned char *data;
126     unsigned long int numBytes;
127 } mp4StreamType;
128 
129 #define MAX_FRAMES_IN_CHUNK                 10
130 #define VOP_START_CODE                      0x000001B6
131 #define VOL_START_CODE                      0x000001B0
132 
133 typedef enum VOPTYPE {
134     NO_VOP = -1, // bitstream contains no VOP.
135     MPEG4_I_VOP = 0,   // bitstream contains an MPEG4 I-VOP
136     MPEG4_P_VOP = 1,   // bitstream contains an MPEG4 P-VOP
137     MPEG4_B_VOP = 2,   // bitstream contains an MPEG4 B-VOP
138     MPEG4_S_VOP = 3,   // bitstream contains an MPEG4 S-VOP
139 } VOP_TYPE;
140 
141 typedef struct {
142     uint32    timestamp_increment;
143     uint32    offset;
144     uint32    size;
145     VOP_TYPE  vopType;
146 } mp4_frame_info_type;
147 
148 class MP4_Utils
149 {
150     private:
151         struct posInfoType {
152             uint8 *bytePtr;
153             uint8 bitPos;
154         };
155 
156         posInfoType m_posInfo;
157         byte *m_dataBeginPtr;
158         unsigned int vop_time_resolution;
159         bool vop_time_found;
160         uint16 m_SrcWidth, m_SrcHeight;   // Dimensions of the source clip
161     public:
162         MP4_Utils();
163         ~MP4_Utils();
164         int16 populateHeightNWidthFromShortHeader(mp4StreamType * psBits);
165         bool parseHeader(mp4StreamType * psBits);
166         static uint32 read_bit_field(posInfoType * posPtr, uint32 size);
167         bool is_notcodec_vop(unsigned char *pbuffer, unsigned int len);
168 };
169 #endif
170