1 /* Quicktime muxer plugin for GStreamer |
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2 * Copyright (C) 2008 Thiago Sousa Santos <thiagoss@embedded.ufcg.edu.br> |
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3 * |
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4 * This library is free software; you can redistribute it and/or |
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5 * modify it under the terms of the GNU Library General Public |
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6 * License as published by the Free Software Foundation; either |
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7 * version 2 of the License, or (at your option) any later version. |
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8 * |
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9 * This library is distributed in the hope that it will be useful, |
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10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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12 * Library General Public License for more details. |
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13 * |
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14 * You should have received a copy of the GNU Library General Public |
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15 * License along with this library; if not, write to the |
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16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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17 * Boston, MA 02111-1307, USA. |
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18 */ |
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19 /* |
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20 * Unless otherwise indicated, Source Code is licensed under MIT license. |
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21 * See further explanation attached in License Statement (distributed in the file |
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22 * LICENSE). |
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23 * |
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24 * Permission is hereby granted, free of charge, to any person obtaining a copy of |
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25 * this software and associated documentation files (the "Software"), to deal in |
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26 * the Software without restriction, including without limitation the rights to |
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27 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies |
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28 * of the Software, and to permit persons to whom the Software is furnished to do |
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29 * so, subject to the following conditions: |
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30 * |
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31 * The above copyright notice and this permission notice shall be included in all |
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32 * copies or substantial portions of the Software. |
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33 * |
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34 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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35 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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36 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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37 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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38 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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39 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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40 * SOFTWARE. |
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41 */ |
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42 |
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43 #ifndef __DESCRIPTORS_H__ |
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44 #define __DESCRIPTORS_H__ |
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45 |
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46 #include <glib.h> |
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47 #include <string.h> |
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48 #include "properties.h" |
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49 |
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50 /* |
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51 * Tags for descriptor (each kind is represented by a number, instead of fourcc as in atoms) |
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52 */ |
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53 #define OBJECT_DESC_TAG 0x01 |
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54 #define INIT_OBJECT_DESC_TAG 0x02 |
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55 #define ES_DESCRIPTOR_TAG 0x03 |
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56 #define DECODER_CONFIG_DESC_TAG 0x04 |
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57 #define DECODER_SPECIFIC_INFO_TAG 0x05 |
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58 #define SL_CONFIG_DESC_TAG 0x06 |
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59 #define ES_ID_INC_TAG 0x0E |
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60 #define MP4_INIT_OBJECT_DESC_TAG 0x10 |
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61 |
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62 #define ESDS_OBJECT_TYPE_MPEG1_P3 0x6B |
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63 #define ESDS_OBJECT_TYPE_MPEG2_P7_MAIN 0x66 |
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64 #define ESDS_OBJECT_TYPE_MPEG4_P7_LC 0x67 |
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65 #define ESDS_OBJECT_TYPE_MPEG4_P7_SSR 0x68 |
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66 #define ESDS_OBJECT_TYPE_MPEG4_P2 0x20 |
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67 #define ESDS_OBJECT_TYPE_MPEG4_P3 0x40 |
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68 |
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69 #define ESDS_STREAM_TYPE_VISUAL 0x04 |
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70 #define ESDS_STREAM_TYPE_AUDIO 0x05 |
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71 |
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72 |
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73 typedef struct _BaseDescriptor |
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74 { |
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75 guint8 tag; |
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76 /* the first bit of each byte indicates if the next byte should be used */ |
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77 guint8 size[4]; |
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78 } BaseDescriptor; |
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79 |
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80 typedef struct _SLConfigDescriptor |
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81 { |
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82 BaseDescriptor base; |
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83 |
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84 guint8 predefined; /* everything is supposed predefined */ |
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85 } SLConfigDescriptor; |
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86 |
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87 typedef struct _DecoderSpecificInfoDescriptor |
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88 { |
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89 BaseDescriptor base; |
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90 guint32 length; |
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91 guint8 *data; |
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92 } DecoderSpecificInfoDescriptor; |
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93 |
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94 typedef struct _DecoderConfigDescriptor { |
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95 BaseDescriptor base; |
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96 |
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97 guint8 object_type; |
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98 |
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99 /* following are condensed into streamType: |
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100 * bit(6) streamType; |
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101 * bit(1) upStream; |
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102 * const bit(1) reserved=1; |
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103 */ |
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104 guint8 stream_type; |
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105 |
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106 guint8 buffer_size_DB[3]; |
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107 guint32 max_bitrate; |
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108 guint32 avg_bitrate; |
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109 |
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110 DecoderSpecificInfoDescriptor *dec_specific_info; |
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111 } DecoderConfigDescriptor; |
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112 |
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113 typedef struct _ESDescriptor |
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114 { |
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115 BaseDescriptor base; |
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116 |
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117 guint16 id; |
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118 |
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119 /* flags contains the following: |
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120 * bit(1) streamDependenceFlag; |
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121 * bit(1) URL_Flag; |
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122 * bit(1) OCRstreamFlag; |
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123 * bit(5) streamPriority; |
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124 */ |
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125 guint8 flags; |
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126 |
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127 guint16 depends_on_es_id; |
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128 guint8 url_length; /* only if URL_flag is set */ |
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129 guint8 *url_string; /* size is url_length */ |
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130 |
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131 guint16 ocr_es_id; /* only if OCRstreamFlag is set */ |
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132 |
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133 DecoderConfigDescriptor dec_conf_desc; |
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134 SLConfigDescriptor sl_conf_desc; |
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135 |
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136 /* optional remainder of ESDescriptor is not used */ |
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137 } ESDescriptor; |
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138 |
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139 /* --- FUNCTIONS --- */ |
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140 void desc_es_init (ESDescriptor *es); |
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141 ESDescriptor *desc_es_descriptor_new (); |
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142 guint64 desc_es_descriptor_copy_data (ESDescriptor *es, guint8 **buffer, |
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143 guint64 *size, guint64 *offset); |
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144 void desc_es_descriptor_clear (ESDescriptor *es); |
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145 |
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146 DecoderSpecificInfoDescriptor *desc_dec_specific_info_new(); |
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147 void desc_dec_specific_info_free (DecoderSpecificInfoDescriptor *dsid); |
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148 void desc_dec_specific_info_alloc_data (DecoderSpecificInfoDescriptor *dsid, |
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149 guint32 size); |
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150 |
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151 #endif /* __DESCRIPTORS_H__ */ |
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