mp3dec_8h_source.html
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All Rights Reserved.</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * The contents of this file, and the files included with this file, are</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * subject to the current version of the RealNetworks Public Source License</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * Version 1.0 (the "RPSL") available at</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * http://www.helixcommunity.org/content/rpsl unless you have licensed</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * the file under the RealNetworks Community Source License Version 1.0</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * in which case the RCSL will apply. You may also obtain the license terms</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * directly from RealNetworks. You may not use this file except in</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * compliance with the RPSL or, if you have a valid RCSL with RealNetworks</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * applicable to this file, the RCSL. Please see the applicable RPSL or</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * RCSL for the rights, obligations and limitations governing use of the</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * contents of the file.</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> *</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * This file is part of the Helix DNA Technology. RealNetworks is the</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * developer of the Original Code and owns the copyrights in the portions</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * it created.</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> *</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * This file, and the files included with this file, is distributed and made</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> *</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * Technology Compatibility Kit Test Suite(s) Location:</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * http://www.helixcommunity.org/content/tck</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> *</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * Contributor(s):</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> *</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * ***** END LICENSE BLOCK ***** */</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">/**************************************************************************************</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> * Fixed-point MP3 decoder</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * Jon Recker (jrecker@real.com), Ken Cooke (kenc@real.com)</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * June 2003</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> *</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * mp3dec.h - public C API for MP3 decoder</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> **************************************************************************************/</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#ifndef _MP3DEC_H</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#define _MP3DEC_H</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#include <Arduino.h></span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#if defined(_WIN32) && !defined(_WIN32_WCE)</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#elif defined(_WIN32) && defined(_WIN32_WCE) && defined(ARM)</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#elif defined(_WIN32) && defined(WINCE_EMULATOR)</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#elif defined(ARM_ADS)</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#elif defined(_SYMBIAN) && defined(__WINS__) </span><span class="comment">/* Symbian emulator for Ix86 */</span><span class="preprocessor"></span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#elif defined(__GNUC__) && defined(ARM)</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor">#elif defined(__GNUC__) && defined(__i386__)</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#elif defined(_OPENWAVE_SIMULATOR) || defined(_OPENWAVE_ARMULATOR)</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#elif defined(__GNUC__) && defined(__AVR32_UC__)</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor">#</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#elif defined(__CORTEX_M) && __CORTEX_M == 0x04U</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor">#</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor">#error No platform defined. See valid options in mp3dec.h</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment">/* determining MAINBUF_SIZE:</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"> * max mainDataBegin = (2^9 - 1) bytes (since 9-bit offset) = 511</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment"> * max nSlots (concatenated with mainDataBegin bytes from before) = 1440 - 9 - 4 + 1 = 1428</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment"> * 511 + 1428 = 1939, round up to 1940 (4-byte align)</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"> */</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor">#define MAINBUF_SIZE 1940</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor">#define MAX_NGRAN 2 </span><span class="comment">/* max granules */</span><span class="preprocessor"></span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor">#define MAX_NCHAN 2 </span><span class="comment">/* max channels */</span><span class="preprocessor"></span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor">#define MAX_NSAMP 576 </span><span class="comment">/* max samples per channel, per granule */</span><span class="preprocessor"></span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment">/* map to 0,1,2 to make table indexing easier */</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="keyword">typedef</span> <span class="keyword">enum</span> {</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  MPEG1 = 0,</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  MPEG2 = 1,</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  MPEG25 = 2</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> } MPEGVersion;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="keyword">typedef</span> <span class="keywordtype">void</span> *HMP3Decoder;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="keyword">enum</span> {</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  ERR_MP3_NONE = 0,</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  ERR_MP3_INDATA_UNDERFLOW = -1,</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  ERR_MP3_MAINDATA_UNDERFLOW = -2,</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  ERR_MP3_FREE_BITRATE_SYNC = -3,</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  ERR_MP3_OUT_OF_MEMORY = -4,</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  ERR_MP3_NULL_POINTER = -5,</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  ERR_MP3_INVALID_FRAMEHEADER = -6,</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  ERR_MP3_INVALID_SIDEINFO = -7,</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  ERR_MP3_INVALID_SCALEFACT = -8,</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  ERR_MP3_INVALID_HUFFCODES = -9,</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  ERR_MP3_INVALID_DEQUANTIZE = -10,</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  ERR_MP3_INVALID_IMDCT = -11,</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  ERR_MP3_INVALID_SUBBAND = -12,</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  ERR_UNKNOWN = -9999</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> };</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div><div class="line"><a name="l00115"></a><span class="lineno"><a class="line" href="struct__MP3FrameInfo.html"> 115</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__MP3FrameInfo.html">_MP3FrameInfo</a> {</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordtype">int</span> bitrate;</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordtype">int</span> nChans;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordtype">int</span> samprate;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordtype">int</span> bitsPerSample;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">int</span> outputSamps;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordtype">int</span> layer;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordtype">int</span> version;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> } <a class="code" href="struct__MP3FrameInfo.html">MP3FrameInfo</a>;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment">/* public API */</span></div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> HMP3Decoder MP3InitDecoder(<span class="keywordtype">void</span>);</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="keywordtype">void</span> MP3FreeDecoder(HMP3Decoder hMP3Decoder);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="keywordtype">int</span> MP3Decode(HMP3Decoder hMP3Decoder, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> **inbuf, <span class="keywordtype">int</span> *bytesLeft, <span class="keywordtype">short</span> *outbuf, <span class="keywordtype">int</span> useSize);</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="keywordtype">void</span> MP3GetLastFrameInfo(HMP3Decoder hMP3Decoder, <a class="code" href="struct__MP3FrameInfo.html">MP3FrameInfo</a> *mp3FrameInfo);</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="keywordtype">int</span> MP3GetNextFrameInfo(HMP3Decoder hMP3Decoder, <a class="code" href="struct__MP3FrameInfo.html">MP3FrameInfo</a> *mp3FrameInfo, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf);</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="keywordtype">int</span> MP3FindSyncWord(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf, <span class="keywordtype">int</span> nBytes);</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> }</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="preprocessor">#endif </span><span class="comment">/* _MP3DEC_H */</span><span class="preprocessor"></span></div><div class="ttc" id="struct__MP3FrameInfo_html"><div class="ttname"><a href="struct__MP3FrameInfo.html">_MP3FrameInfo</a></div><div class="ttdef"><b>Definition:</b> mp3dec.h:115</div></div> 73 </div><!-- fragment --></div><!-- contents --> 74 <!-- start footer part --> 75 <hr class="footer"/><address class="footer"><small> 76 Generated by  <a href="http://www.doxygen.org/index.html"> 77 <img class="footer" src="doxygen.png" alt="doxygen"/> 78 </a> 1.8.14 79 </small></address> 80 </body> 81 </html>