update -# settings
authorJosh Coalson <jcoalson@users.sourceforce.net>
Thu, 3 May 2001 00:09:18 +0000 (00:09 +0000)
committerJosh Coalson <jcoalson@users.sourceforce.net>
Thu, 3 May 2001 00:09:18 +0000 (00:09 +0000)
doc/documentation.html
src/flac/main.c

index b1e150a..36f1c66 100644 (file)
                                -0 .. -9
                        </TD>
                        <TD>
-                               Fastest compression .. highest compression.  The default is <TT>-6</TT>.
+                               Fastest compression .. highest compression.  The default is <TT>-5</TT>.
                        </TD>
                </TR>
                <TR>
                                -1
                        </TD>
                        <TD>
-                               Synonymous with -l 0 -b 1152 -M
+                               Synonymous with -l 0 -b 1152 -M -r 2,2
                        </TD>
                </TR>
                <TR>
                                -2
                        </TD>
                        <TD>
-                               Synonymous with -l 0 -b 1152 -m -r 4
+                               Synonymous with -l 0 -b 1152 -m -r 3
                        </TD>
                </TR>
                <TR>
                                -3
                        </TD>
                        <TD>
-                               Reserved
+                               Synonymous with -l 6 -b 4608 -r 3,3
                        </TD>
                </TR>
                <TR>
                                -4
                        </TD>
                        <TD>
-                               Synonymous with -l 8 -b 4608
+                               Synonymous with -l 8 -b 4608 -M -r 3,3
                        </TD>
                </TR>
                <TR>
                                -5
                        </TD>
                        <TD>
-                               Synonymous with -l 8 -b 4608 -M
+                               Synonymous with -l 8 -b 4608 -m -r 3,3
                        </TD>
                </TR>
                <TR>
                                -7
                        </TD>
                        <TD>
-                               Reserved
+                               Synonymous with -l 8 -b 4608 -m -e -r 6
                        </TD>
                </TR>
                <TR>
                                -8
                        </TD>
                        <TD>
-                               Synonymous with -l 32 -b 4608 -m -r 4
+                               Synonymous with -l 12 -b 4608 -m -e -r 6
                        </TD>
                </TR>
                <TR>
                                -R #
                        </TD>
                        <TD>
-                               Set the Rice parameter search distance.  Defaults to 0.  The residual coder will search for the best Rice parameter +/- this number for each residual partition.  This option is expensive (run time for -R n will be almost 2n+1 times that of -R 0) and doesn't give much of a gain.
+                               Set the Rice parameter search distance.  Defaults to 0.  The residual coder will search for the best Rice parameter +/- this number for each residual partition.  This option is expensive (run time for -R n will typically be (2n)*30% over that of -R 0) and doesn't give much of a gain.  As a matter of fact, none of the -0..-9 options currently use it since -R > 1 is not consistently better like it should be.
                        </TD>
                </TR>
                <TR>
index 8e6fafd..db19caa 100644 (file)
@@ -32,7 +32,7 @@ static int encode_file(const char *infilename, const char *forced_outfilename);
 static int decode_file(const char *infilename, const char *forced_outfilename);
 
 bool verify = false, verbose = true, lax = false, test_only = false, analyze = false;
-bool do_mid_side = true, loose_mid_side = false, do_exhaustive_model_search = false, do_qlp_coeff_prec_search = false;
+bool do_mid_side = true, loose_mid_side = true, do_exhaustive_model_search = false, do_qlp_coeff_prec_search = false;
 bool force_to_stdout = false;
 analysis_options aopts = { false, false };
 unsigned padding = 0;
@@ -98,10 +98,12 @@ int main(int argc, char *argv[])
                        do_exhaustive_model_search = false;
                else if(0 == strcmp(argv[i], "-l"))
                        max_lpc_order = atoi(argv[++i]);
-               else if(0 == strcmp(argv[i], "-m"))
+               else if(0 == strcmp(argv[i], "-m")) {
                        do_mid_side = true;
+                       loose_mid_side = false;
+               }
                else if(0 == strcmp(argv[i], "-m-"))
-                       do_mid_side = false;
+                       do_mid_side = loose_mid_side = false;
                else if(0 == strcmp(argv[i], "-M"))
                        loose_mid_side = do_mid_side = true;
                else if(0 == strcmp(argv[i], "-M-"))
@@ -183,19 +185,28 @@ int main(int argc, char *argv[])
                        rice_parameter_search_dist = 0;
                        max_lpc_order = 0;
                }
-               else if(0 == strcmp(argv[i], "-4")) {
+               else if(0 == strcmp(argv[i], "-3")) {
                        do_exhaustive_model_search = false;
                        do_mid_side = false;
                        loose_mid_side = false;
                        qlp_coeff_precision = 0;
-                       min_residual_partition_order = max_residual_partition_order = 0;
+                       min_residual_partition_order = max_residual_partition_order = 3;
+                       rice_parameter_search_dist = 0;
+                       max_lpc_order = 6;
+               }
+               else if(0 == strcmp(argv[i], "-4")) {
+                       do_exhaustive_model_search = false;
+                       do_mid_side = true;
+                       loose_mid_side = true;
+                       qlp_coeff_precision = 0;
+                       min_residual_partition_order = max_residual_partition_order = 3;
                        rice_parameter_search_dist = 0;
                        max_lpc_order = 8;
                }
                else if(0 == strcmp(argv[i], "-5")) {
                        do_exhaustive_model_search = false;
                        do_mid_side = true;
-                       loose_mid_side = true;
+                       loose_mid_side = false;
                        qlp_coeff_precision = 0;
                        min_residual_partition_order = max_residual_partition_order = 3;
                        rice_parameter_search_dist = 0;
@@ -211,13 +222,25 @@ int main(int argc, char *argv[])
                        rice_parameter_search_dist = 0;
                        max_lpc_order = 8;
                }
+               else if(0 == strcmp(argv[i], "-7")) {
+                       do_exhaustive_model_search = true;
+                       do_mid_side = true;
+                       loose_mid_side = false;
+                       qlp_coeff_precision = 0;
+                       min_residual_partition_order = 0;
+                       min_residual_partition_order = 6;
+                       rice_parameter_search_dist = 0;
+                       max_lpc_order = 8;
+               }
                else if(0 == strcmp(argv[i], "-8")) {
-                       do_exhaustive_model_search = false;
+                       do_exhaustive_model_search = true;
                        do_mid_side = true;
                        loose_mid_side = false;
                        qlp_coeff_precision = 0;
+                       min_residual_partition_order = 0;
+                       min_residual_partition_order = 6;
                        rice_parameter_search_dist = 0;
-                       max_lpc_order = 32;
+                       max_lpc_order = 12;
                }
                else if(0 == strcmp(argv[i], "-9")) {
                        do_exhaustive_model_search = true;
@@ -247,13 +270,13 @@ int main(int argc, char *argv[])
                }
                if(min_residual_partition_order < 0) {
                        if(blocksize <= 1152)
-                               max_residual_partition_order = 3;
+                               max_residual_partition_order = 2;
                        else if(blocksize <= 2304)
-                               max_residual_partition_order = 4;
+                               max_residual_partition_order = 3;
                        else if(blocksize <= 4608)
-                               max_residual_partition_order = 4;
+                               max_residual_partition_order = 3;
                        else
-                               max_residual_partition_order = 5;
+                               max_residual_partition_order = 4;
                        min_residual_partition_order = max_residual_partition_order;
                }
                if(rice_parameter_search_dist < 0) {
@@ -437,13 +460,13 @@ int usage(const char *message, ...)
        fprintf(stderr, "  -0   : synonymous with -l 0 -b 1152\n");
        fprintf(stderr, "  -1   : synonymous with -l 0 -b 1152 -M -r 2,2\n");
        fprintf(stderr, "  -2   : synonymous with -l 0 -b 1152 -m -r 3\n");
-       fprintf(stderr, "  -3   : reserved\n");
-       fprintf(stderr, "  -4   : synonymous with -l 8 -b 4608\n");
-       fprintf(stderr, "  -5   : synonymous with -l 8 -b 4608 -M -r 3,3\n");
+       fprintf(stderr, "  -3   : synonymous with -l 6 -b 4608 -r 3,3\n");
+       fprintf(stderr, "  -4   : synonymous with -l 8 -b 4608 -M -r 3,3\n");
+       fprintf(stderr, "  -5   : synonymous with -l 8 -b 4608 -m -r 3,3\n");
        fprintf(stderr, "  -6   : synonymous with -l 8 -b 4608 -m -r 4\n");
-       fprintf(stderr, "  -7   : reserved\n");
-       fprintf(stderr, "  -8   : synonymous with -l 32 -b 4608 -m -r 4\n");
-       fprintf(stderr, "  -9   : synonymous with -l 32 -m -e -r 16 -R 32 -p (very slow!)\n");
+       fprintf(stderr, "  -7   : synonymous with -l 8 -b 4608 -m -e -r 6\n");
+       fprintf(stderr, "  -8   : synonymous with -l 12 -b 4608 -m -e -r 6\n");
+       fprintf(stderr, "  -9   : synonymous with -l 32 -b 4608 -m -e -r 16 -R 32 -p (very slow!)\n");
        fprintf(stderr, "  -e   : do exhaustive model search (expensive!)\n");
        fprintf(stderr, "  -l # : specify max LPC order; 0 => use only fixed predictors\n");
        fprintf(stderr, "  -p   : do exhaustive search of LP coefficient quantization (expensive!);\n");