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Initial commit of redesigned internal processing and audio management.
Note: Several of the decoders are currently non-functioning in this commit. If you want the latest functioning codebase, please checkout the commit prior to this one. All decoders will eventually be updated with this new architecture. Currently broken: - Logging and recording - Aux decoders (Fleetsync/MDC/LoJack/Tait) - LTR/Passport decoders Changes in this commit: - Module architecture for decoders and components with central provisioning by the DecoderFactory - Transition from Complex sample stream processing to float buffer processing for improved memory management - Redesigned filter structures - to support buffers and streams - Resolved several memory leak issues - Universal sharing of the thread pool manager - Added centralized audio management with call/user prioritization and new gui with mute/volume controls - Embedded audio metadata for eventual streaming support - Redesigned ProcessingChain to support independent re-use - Added new TrafficChannelManager to handle traffic channel allocations - Traffic Channel pool size and Call timeout available in P25 and MPT1327 configs - Redesigned channel and decoder gui components
This commit is contained in:
denny
161
src/module/decode/p25/P25Interleave.java
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src/module/decode/p25/P25Interleave.java
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package module.decode.p25;
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import java.util.BitSet;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import bits.BinaryMessage;
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/**
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* Utility class to process interleave of P25 Voice and Data messages.
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*/
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public class P25Interleave
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{
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private final static Logger mLog =
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LoggerFactory.getLogger( P25Interleave.class );
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private static int[] DATA_INTERLEAVE = new int[] { 0,1,2,3,52,53,54,55,100,
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101,102,103,148,149,150,151,4,5,6,7,56,57,58,59,104,105,106,107,152,153,
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154,155,8,9,10,11,60,61,62,63,108,109,110,111,156,157,158,159,12,13,14,
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15,64,65,66,67,112,113,114,115,160,161,162,163,16,17,18,19,68,69,70,71,
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116,117,118,119,164,165,166,167,20,21,22,23,72,73,74,75,120,121,122,123,
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168,169,170,171,24,25,26,27,76,77,78,79,124,125,126,127,172,173,174,175,
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28,29,30,31,80,81,82,83,128,129,130,131,176,177,178,179,32,33,34,35,84,
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85,86,87,132,133,134,135,180,181,182,183,36,37,38,39,88,89,90,91,136,
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137,138,139,184,185,186,187,40,41,42,43,92,93,94,95,140,141,142,143,188,
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189,190,191,44,45,46,47,96,97,98,99,144,145,146,147,192,193,194,195,48,
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49,50,51 };
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private static int[] DATA_DEINTERLEAVE = new int[] { 0,1,2,3,16,17,18,19,32,
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33,34,35,48,49,50,51,64,65,66,67,80,81,82,83,96,97,98,99,112,113,114,115,
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128,129,130,131,144,145,146,147,160,161,162,163,176,177,178,179,192,193,
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194,195,4,5,6,7,20,21,22,23,36,37,38,39,52,53,54,55,68,69,70,71,84,85,
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86,87,100,101,102,103,116,117,118,119,132,133,134,135,148,149,150,151,
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164,165,166,167,180,181,182,183,8,9,10,11,24,25,26,27,40,41,42,43,56,57,
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58,59,72,73,74,75,88,89,90,91,104,105,106,107,120,121,122,123,136,137,
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138,139,152,153,154,155,168,169,170,171,184,185,186,187,12,13,14,15,28,
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29,30,31,44,45,46,47,60,61,62,63,76,77,78,79,92,93,94,95,108,109,110,
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111,124,125,126,127,140,141,142,143,156,157,158,159,172,173,174,175,188,
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189,190,191 };
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private static int[] VOICE_INTERLEAVE = new int[] { 0,24,48,72,96,120,25,
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1,73,49,121,97,2,26,50,74,98,122,27,3,75,51,123,99,4,28,52,76,100,124,
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29,5,77,53,125,101,6,30,54,78,102,126,31,7,79,55,127,103,8,32,56,80,104,
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128,33,9,81,57,129,105,10,34,58,82,106,130,35,11,83,59,131,107,12,36,60,
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84,108,132,37,13,85,61,133,109,14,38,62,86,110,134,39,87,15,63,135,111,
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16,40,64,88,112,136,41,17,89,65,137,113,18,42,66,90,114,138,43,19,91,
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67,139,115,20,44,68,92,116,140,45,21,93,69,141,117,22,46,70,94,119,142,
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47,23,95,71,143,118 };
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private static int[] VOICE_DEINTERLEAVE = new int[] { 0,7,12,19,24,31,36,43,
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48,55,60,67,72,79,84,91,96,103,108,115,120,127,132,139,1,6,13,18,25,30,
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37,42,49,54,61,66,73,78,85,90,97,102,109,114,121,126,133,138,2,9,14,21,
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26,33,38,45,50,57,62,69,74,81,86,93,98,105,110,117,122,129,134,141,3,8,
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15,20,27,32,39,44,51,56,63,68,75,80,87,92,99,104,111,116,123,128,135,
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140,4,11,16,23,28,35,40,47,52,59,64,71,76,83,88,95,100,107,112,119,124,
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131,136,143,5,10,17,22,29,34,41,46,53,58,65,70,77,82,89,94,101,106,113,
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118,125,130,137,142 };
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/**
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* Deinterleaves the 196-bit block in message, identified by start and end
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* bit positions. Note: end index (exclusive) should be one more than the
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* last bit in the block.
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*
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* @param message - source message to deinterleave
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* @param start - starting bit index for the block
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* @param end - ending bit index for the block, plus 1
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*/
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public static BinaryMessage deinterleaveData( BinaryMessage message,
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int start, int end )
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{
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return deinterleave( DATA_DEINTERLEAVE, message, start, end );
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}
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public static BinaryMessage deinterleaveVoice( BinaryMessage message,
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int start, int end )
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{
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return deinterleave( VOICE_DEINTERLEAVE, message, start, end );
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}
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public static BinaryMessage deinterleave( int[] pattern, BinaryMessage message,
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int start, int end )
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{
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BitSet original = message.get( start, end );
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/* Clear block bits in source message */
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message.clear( start, end );
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/* Iterate only the set bits in the original message and apply
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* the deinterleave -- we don't have to evaluate the 0 bits */
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for (int i = original.nextSetBit( 0 );
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i >= 0 && i < pattern.length;
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i = original.nextSetBit( i + 1 ) )
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{
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message.set( start + pattern[ i ] );
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}
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return message;
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}
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/**
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* Interleaves the 196-bit block in message, identified by start and end
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* bit positions. Note: end index (exclusive) should be one more than the
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* last bit in the block.
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*
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* @param message - source message to interleave
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* @param start - starting bit index for the block
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* @param end - ending bit index for the block, plus 1
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*/
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public static BinaryMessage interleaveData( BinaryMessage message,
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int start, int end )
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{
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return interleave( DATA_INTERLEAVE, message, start, end );
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}
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public static BinaryMessage interleaveVoice( BinaryMessage message,
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int start, int end )
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{
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return interleave( VOICE_INTERLEAVE, message, start, end );
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}
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public static BinaryMessage interleave( int[] pattern, BinaryMessage message,
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int start, int end )
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{
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BitSet original = message.get( start, end );
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/* Clear block bits in source message */
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message.clear( start, end );
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/* Iterate only the set bits in the original message and apply
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* the deinterleave -- we don't have to evaluate the 0 bits */
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for (int i = original.nextSetBit( 0 );
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i >= 0 && i < pattern.length;
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i = original.nextSetBit( i + 1 ) )
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{
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message.set( start + pattern[ i ] );
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}
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return message;
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}
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public static void main( String[] args )
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{
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int start = 0;
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int end = 144;
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int set = 50;
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String interleaved = "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000";
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BinaryMessage b = BinaryMessage.load( interleaved );
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b.set( set );
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mLog.debug( "INT:" + b.toString() );
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P25Interleave.deinterleaveVoice( b, start, end );
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mLog.debug( "DEI:" + b.toString() );
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mLog.debug( "In: " + set + " Out:" + b.nextSetBit( 0 ) );
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}
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}
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