1/*
2 * Copyright (C) 2011 The Android Open Source Project
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 express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef __M4VSS3GPP_INTERNALCONFIG_H__
18#define __M4VSS3GPP_INTERNALCONFIG_H__
19
20/**
21 ******************************************************************************
22 * @file    M4VSS3GPP_InternalConfig.h
23 * @brief    This file contains some magical and configuration parameters.
24 ******************************************************************************
25*/
26
27/***********************/
28/* VideoEdition config */
29/***********************/
30
31#define M4VSS3GPP_MINIMAL_TRANSITION_DURATION            100    /**< 100 milliseconds */
32#define M4VSS3GPP_NB_AU_PREFETCH                        4        /**< prefect 4 AUs */
33#define M4VSS3GPP_NO_STSS_JUMP_POINT                    40000 /**< If 3gp file does not contain
34                                                                   an STSS table (no rap frames),
35                                                                   jump backward 40 s maximum */
36
37/*****************/
38/* Writer config */
39/*****************/
40
41#define M4VSS3GPP_WRITER_AUDIO_STREAM_ID                1
42#define M4VSS3GPP_WRITER_VIDEO_STREAM_ID                2
43
44/**< Max AU size will be 0.8 times the YUV4:2:0 frame size */
45#define M4VSS3GPP_VIDEO_MIN_COMPRESSION_RATIO            0.9F
46/**< Max chunk size will be 1.2 times the max AU size */
47#define M4VSS3GPP_VIDEO_AU_SIZE_TO_CHUNCK_SIZE_RATIO    1.2F
48
49/** READ CAREFULLY IN CASE OF REPORTED RUNNING TROUBLES
50The max AU size is used to pre-set max size of AU that can be written in the 3GP writer
51For audio standard with variable AU size, there could be some encoding settings leading to AU size
52exceeding this limit.
53For AAC streams for instance the average AU size is given by:
54av AU size = (av bitrate * 1024)/(sampling freq)
55If VSS returns the message:
56>> ERROR: audio AU size (XXXX) to copy larger than allocated one (YYYY) => abort
57>> PLEASE CONTACT SUPPORT TO EXTEND MAX AU SIZE IN THE PRODUCT LIBRARY
58Error is most likely to happen when mixing with audio full replacement
59 */
60/**< AAC max AU size - READ EXPLANATION ABOVE */
61#define M4VSS3GPP_AUDIO_MAX_AU_SIZE                        2048
62/**< set to x4 max AU size per chunk */
63#define M4VSS3GPP_AUDIO_MAX_CHUNCK_SIZE                    8192
64
65
66/***********************/
67/* H263 / MPEG4 config */
68/***********************/
69
70#define    M4VSS3GPP_EDIT_H263_MODULO_TIME            255
71
72#ifdef BIG_ENDIAN
73/**< 0xb3 01 00 00 Little endian / b00 00 00 01 b3 big endian*/
74#define    M4VSS3GPP_EDIT_GOV_HEADER            0x000001b3
75#else
76/**< 0xb3 01 00 00 Little endian / b00 00 00 01 b3 big endian*/
77#define    M4VSS3GPP_EDIT_GOV_HEADER            0xb3010000
78#endif
79
80/**************/
81/* AMR config */
82/**************/
83
84#define M4VSS3GPP_WRITTEN_AMR_TRACK_TIME_SCALE            8000
85#define M4VSS3GPP_AMR_DECODED_PCM_SAMPLE_NUMBER            160        /**< 20ms at 8000hz -->
86                                                                     20x8=160 samples */
87#define M4VSS3GPP_AMR_DEFAULT_BITRATE                   12200   /**< 12.2 kbps */
88
89/**************/
90/* EVRC config */
91/**************/
92
93#define M4VSS3GPP_EVRC_DEFAULT_BITRATE                  9200   /**< 9.2 kbps */
94
95/**************/
96/* MP3 config */
97/**************/
98
99/** Macro to make a jump on the MP3 track on several steps
100    To avoid to block the system with an long MP3 jump, this process
101    is divided on several steps.
102 */
103#define M4VSS3GPP_MP3_JUMPED_AU_NUMBER_MAX 100
104
105/** Macro to define the number of read AU to analyse the bitrate
106    So the process will read the first n AU of the MP3 stream to get
107    the average bitrate. n is defined by this define.
108 */
109#define M4VSS3GPP_MP3_AU_NUMBER_MAX 500
110
111/*****************************/
112/* define AMR silence frames */
113/*****************************/
114
115#define M4VSS3GPP_AMR_AU_SILENCE_FRAME_048_SIZE     13
116#define M4VSS3GPP_AMR_AU_SILENCE_FRAME_048_DURATION 160
117
118#ifdef M4VSS3GPP_SILENCE_FRAMES
119const M4OSA_UInt8 M4VSS3GPP_AMR_AU_SILENCE_FRAME_048[M4VSS3GPP_AMR_AU_SILENCE_FRAME_048_SIZE] =
120{
121    0x04, 0xFF, 0x18, 0xC7, 0xF0, 0x0D, 0x04, 0x33,
122    0xFF, 0xE0, 0x00, 0x00, 0x00
123};
124#else
125extern const M4OSA_UInt8 \
126              M4VSS3GPP_AMR_AU_SILENCE_FRAME_048[M4VSS3GPP_AMR_AU_SILENCE_FRAME_048_SIZE];
127#endif
128
129/*****************************/
130/* define AAC silence frames */
131/*****************************/
132
133#define M4VSS3GPP_AAC_AU_SILENCE_MONO_SIZE      4
134
135#ifdef M4VSS3GPP_SILENCE_FRAMES
136const M4OSA_UInt8 M4VSS3GPP_AAC_AU_SILENCE_MONO[M4VSS3GPP_AAC_AU_SILENCE_MONO_SIZE] =
137{
138    0x00, 0xC8, 0x20, 0x07
139};
140#else
141extern const M4OSA_UInt8 M4VSS3GPP_AAC_AU_SILENCE_MONO[M4VSS3GPP_AAC_AU_SILENCE_MONO_SIZE];
142#endif
143
144#define M4VSS3GPP_AAC_AU_SILENCE_STEREO_SIZE        6
145
146#ifdef M4VSS3GPP_SILENCE_FRAMES
147const M4OSA_UInt8 M4VSS3GPP_AAC_AU_SILENCE_STEREO[M4VSS3GPP_AAC_AU_SILENCE_STEREO_SIZE] =
148{
149    0x21, 0x10, 0x03, 0x20, 0x54, 0x1C
150};
151#else
152extern const M4OSA_UInt8 M4VSS3GPP_AAC_AU_SILENCE_STEREO[M4VSS3GPP_AAC_AU_SILENCE_STEREO_SIZE];
153#endif
154
155#endif /* __M4VSS3GPP_INTERNALCONFIG_H__ */
156
157