1 |
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2 | import flvparse from './flv/flvParse';
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3 | import tagdemux from './flv/tagdemux';
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4 | import mp4remux from './mp4/mp4remux';
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5 | import mp4moof from './mp4/mp4moof';
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6 | import { CustEvent } from 'chimee-helper';
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7 | class flv2fmp4 {
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8 |
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9 | |
10 |
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11 |
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12 |
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13 |
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14 |
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15 |
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16 | constructor(config) {
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17 | this._config = { _isLive: false };
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18 | this._config = Object.assign(this._config, config);
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19 |
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20 |
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21 | this.onInitSegment = null;
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22 | this.onMediaSegment = null;
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23 | this.onMediaInfo = null;
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24 | this.seekCallBack = null;
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25 |
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26 |
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27 | this.loadmetadata = false;
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28 | this.ftyp_moov = null;
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29 | this.metaSuccRun = false;
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30 | this.metas = [];
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31 | this.parseChunk = null;
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32 | this.hasVideo = false;
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33 | this.hasAudio = false;
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34 | this._error=null;
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35 |
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36 | this._pendingResolveSeekPoint = -1;
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37 |
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38 |
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39 | this._tempBaseTime = 0;
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40 |
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41 |
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42 | this.setflvBase = this.setflvBasefrist;
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43 |
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44 | tagdemux._onTrackMetadata = this.Metadata.bind(this);
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45 | tagdemux._onMediaInfo = this.metaSucc.bind(this);
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46 | tagdemux._onDataAvailable = this.onDataAvailable.bind(this);
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47 | tagdemux._onError=this.error.bind(this);
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48 | this.m4mof = new mp4moof(this._config);
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49 | this.m4mof.onMediaSegment = this.onMdiaSegment.bind(this);
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50 | }
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51 | seek(baseTime) {
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52 | this.setflvBase = this.setflvBasefrist;
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53 | if (baseTime == undefined || baseTime == 0) {
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54 | baseTime = 0;
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55 | this._pendingResolveSeekPoint = -1;
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56 | }
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57 | if (this._tempBaseTime != baseTime) {
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58 | this._tempBaseTime = baseTime;
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59 | tagdemux._timestampBase = baseTime;
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60 | this.m4mof.seek(baseTime);
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61 | this.m4mof.insertDiscontinuity();
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62 | this._pendingResolveSeekPoint = baseTime;
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63 | }
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64 | }
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65 |
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66 | |
67 |
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68 |
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69 |
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70 |
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71 |
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72 |
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73 |
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74 |
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75 |
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76 | setflvBasefrist(arraybuff, baseTime) {
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77 | let offset = 0;
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78 | try {
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79 | offset = flvparse.setFlv(new Uint8Array(arraybuff));
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80 | } catch (error) {
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81 | this.error(error);
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82 | }
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83 |
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84 | if (flvparse.arrTag.length > 0) {
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85 | this.hasAudio = flvparse._hasAudio;
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86 | this.hasVideo = flvparse._hasVideo;
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87 | if (this._tempBaseTime != 0 && this._tempBaseTime == flvparse.arrTag[0].getTime()) {
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88 | tagdemux._timestampBase = 0;
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89 | }
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90 | try {
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91 | tagdemux.moofTag(flvparse.arrTag);
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92 | } catch (error) {
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93 | this.error(error);
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94 | }
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95 |
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96 | this.setflvBase = this.setflvBaseUsually;
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97 | }
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98 |
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99 | return offset;
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100 | }
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101 |
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102 | |
103 |
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104 |
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105 |
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106 |
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107 |
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108 |
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109 |
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110 |
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111 | setflvBaseUsually(arraybuff, baseTime) {
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112 | let offset = 0;
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113 | try {
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114 | offset = flvparse.setFlv(new Uint8Array(arraybuff));
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115 | } catch (error) {
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116 | this.error(error);
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117 | }
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118 | if (flvparse.arrTag.length > 0) {
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119 | try {
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120 | tagdemux.moofTag(flvparse.arrTag);
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121 | } catch (error) {
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122 | this.error(error);
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123 | }
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124 | }
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125 |
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126 | return offset;
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127 | }
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128 |
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129 | |
130 |
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131 |
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132 |
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133 |
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134 |
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135 |
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136 |
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137 |
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138 | onMdiaSegment(track, value) {
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139 |
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140 | if (this.onMediaSegment) {
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141 | this.onMediaSegment(new Uint8Array(value.data));
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142 | }
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143 | if (this._pendingResolveSeekPoint != -1 && track == 'video') {
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144 | let seekpoint = this._pendingResolveSeekPoint;
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145 | this._pendingResolveSeekPoint = -1;
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146 | if (this.seekCallBack) {
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147 | this.seekCallBack(seekpoint);
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148 | }
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149 | }
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150 | }
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151 |
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152 | |
153 |
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154 |
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155 |
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156 |
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157 |
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158 |
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159 |
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160 |
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161 | Metadata(type, meta) {
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162 | switch (type) {
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163 | case 'video':
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164 | this.metas.push(meta);
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165 | this.m4mof._videoMeta = meta;
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166 | if (this.hasVideo && !this.hasAudio) {
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167 | this.metaSucc();
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168 | return;
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169 | }
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170 | break;
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171 | case 'audio':
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172 | this.metas.push(meta);
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173 | this.m4mof._audioMeta = meta;
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174 | if (!this.hasVideo && this.hasAudio) {
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175 | this.metaSucc();
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176 | return;
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177 | }
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178 | break;
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179 | }
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180 | if (this.hasVideo && this.hasAudio && this.metaSuccRun && this.metas.length > 1) {
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181 | this.metaSucc();
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182 | }
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183 | }
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184 |
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185 | |
186 |
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187 |
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188 |
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189 |
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190 |
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191 |
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192 |
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193 | metaSucc(mi) {
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194 | if (this.onMediaInfo) {
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195 | this.onMediaInfo(mi, { hasAudio: this.hasAudio, hasVideo: this.hasVideo });
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196 | }
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197 |
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198 | if (this.metas.length == 0) {
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199 | this.metaSuccRun = true;
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200 | return;
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201 | }
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202 |
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203 | this.ftyp_moov = mp4remux.generateInitSegment(this.metas);
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204 | if (this.onInitSegment && this.loadmetadata == false) {
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205 |
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206 | this.onInitSegment(this.ftyp_moov);
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207 | this.loadmetadata = true;
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208 | }
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209 | }
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210 |
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211 | onDataAvailable(audiotrack, videotrack) {
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212 | try{
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213 | this.m4mof.remux(audiotrack, videotrack);
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214 | }catch(e){
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215 | this.error(e);
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216 | }
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217 |
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218 | }
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219 |
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220 | |
221 |
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222 |
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223 |
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224 |
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225 |
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226 |
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227 |
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228 |
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229 | setflv(arraybuff, baseTime) {
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230 | return this.setflvBase(arraybuff, baseTime);
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231 | }
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232 |
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233 | |
234 |
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235 |
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236 |
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237 |
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238 |
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239 |
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240 |
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241 | setflvloc(arraybuff) {
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242 | const offset = flvparse.setFlv(new Uint8Array(arraybuff));
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243 |
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244 | if (flvparse.arrTag.length > 0) {
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245 | return flvparse.arrTag;
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246 | }
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247 | }
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248 |
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249 |
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250 | |
251 |
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252 |
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253 |
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254 |
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255 |
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256 | error(e) {
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257 | if(this._error){
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258 | this._error(e);
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259 | }
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260 | }
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261 |
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262 | }
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263 |
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264 |
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265 |
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266 |
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267 |
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268 |
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269 | class foreign extends CustEvent {
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270 | constructor(config) {
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271 | super();
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272 | this.f2m = new flv2fmp4(config);
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273 | this.f2m._error=this.error;
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274 |
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275 | this._onInitSegment = null;
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276 | this._onMediaSegment = null;
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277 | this._onMediaInfo = null;
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278 | this._seekCallBack = null;
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279 | }
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280 |
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281 | error(e){
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282 | this.emit('error',e.type);
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283 | }
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284 | |
285 |
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286 |
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287 |
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288 |
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289 |
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290 |
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291 | seek(basetime) {
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292 | this.f2m.seek(basetime);
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293 | }
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294 |
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295 | |
296 |
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297 |
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298 |
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299 |
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300 |
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301 |
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302 |
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303 | setflv(arraybuff) {
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304 | return this.f2m.setflv(arraybuff, 0);
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305 | }
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306 |
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307 | |
308 |
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309 |
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310 |
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311 |
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312 |
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313 |
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314 |
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315 | setflvloc(arraybuff) {
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316 | return this.f2m.setflvloc(arraybuff);
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317 | }
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318 |
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319 | |
320 |
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321 |
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322 |
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323 |
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324 |
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325 | set onInitSegment(fun) {
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326 | this._onInitSegment = fun;
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327 | this.f2m.onInitSegment = fun;
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328 | }
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329 |
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330 | |
331 |
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332 |
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333 |
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334 |
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335 |
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336 | set onMediaSegment(fun) {
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337 | this._onMediaSegment = fun;
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338 | this.f2m.onMediaSegment = fun;
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339 | }
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340 |
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341 | |
342 |
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343 |
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344 |
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345 |
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346 |
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347 | set onMediaInfo(fun) {
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348 | this._onMediaInfo = fun;
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349 | this.f2m.onMediaInfo = fun;
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350 | }
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351 |
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352 | |
353 |
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354 |
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355 |
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356 |
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357 |
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358 | set seekCallBack(fun) {
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359 | this._seekCallBack = fun;
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360 | this.f2m.seekCallBack = fun;
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361 | }
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362 | }
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363 |
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364 | export default foreign; |
\ | No newline at end of file |