libsamplerate/doc/ChangeLog

   1 2011-08-15  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
   2
   3     * configure.ac
   4     Add symbol support for kfreebsd-*-gnu-*.
   5
   6     * configure.ac doc/Makefile.am
   7     Improve installation of html docs.
   8
   9     * examples/audio_out.c tests/callback_hang_test.c
  10     Fix compiler warnings.
  11
  12     * NEWS README Win32/config.h doc/*.html
  13     Updates for 0.1.8 release.
  14
  15     * configure.ac
  16     Release 0.1.8.
  17
  18 2011-02-22  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  19
  20     * tests/util.[ch]
  21     Rename function print_cpu_name() to get_cpu_name(). Add code for Mac OSX and
  22     FreeBSD.
  23
  24     * tests/multichan_throughput_test.c tests/throughput_test.c
  25     Update to use get_cpu_name().
  26
  27 2010-11-04  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  28
  29     * src/*.[ch]
  30     Fix typo in comments.
  31
  32 2010-10-16  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  33
  34     * src/fastest_coeffs.h src/high_qual_coeffs.h src/mid_qual_coeffs.h
  35     Fix typo in comments.
  36
  37     * configure.ac
  38     Add AM_SILENT_RULES.
  39
  40     * doc/download.html
  41     Add a GPG signature.
  42
  43 2010-09-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  44
  45     * src/float_cast.h
  46     Add lrint/lrintf version for Win64. Thanks to Dmitry Baikov.
  47
  48 2010-01-10  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  49
  50     * examples/sndfile-resample.c
  51     Prevent creation of double length output files when conversion is restarted
  52     due to clipping of the output when the format is FLAC. This problem arises
  53     due to libsndfile's in ability to seek in a FLAC file during write.
  54
  55     * src/samplerate.h tests/termination_test.c
  56     Revert change that moved the src_ratio field to the start of SRC_DATA
  57     struct. This change does have some merit, but is not worth it considering
  58     that its an API change. This idea will be reconsidered when the API does
  59     change.
  60
  61 2009-12-01  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  62
  63     * doc/win32.html
  64     Update instructions.
  65
  66     * Win32/Makefile.msvc
  67     Add /Zm200 to CFLAGS.
  68
  69 2009-11-29  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  70
  71     * src/common.h
  72     Add macro UNUSED for marking function parameters as unused.
  73
  74 2009-10-07  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  75
  76     * tests/misc_test.c
  77     Add zero_input_test() from debian bug #506722.
  78
  79     * src/src_linear.c src/src_zoh.c
  80     Fix for bug in zero_input_test(). Both these converters crashed if the
  81     input_frames field of SRC_DATA was zero.
  82
  83 2009-09-16  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  84
  85     * M4/endian.m4
  86     Fix detection of CPU endian-ness when cross compiling.
  87
  88 2009-08-24  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  89
  90     * tests/termination_test.c
  91     Add test to detect a particular kind of termination error.
  92
  93     * src/src_sinc.c
  94     Fix a termination condition bug.
  95
  96 2009-06-25  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  97
  98     * src/samplerate.h
  99     Change definition of SRC_STATE to be kinder to some slightly broken
 100     compilers. Thanks to Rob Brown for suggesting this fix.
 101
 102 2009-04-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 103
 104     * M4/check_signal.m4 M4/clip_mode.m4 M4/lrint.m4 M4/lrintf.m4
 105     New files used instead of acinclude.m4.
 106
 107 2009-04-03  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 108
 109     * src/samplerate.h
 110     Move src_ratio field to the start of the SRC_DATA struct to ensure it gets
 111     aligned correctly when either the library or client code gets compiled with
 112     -malign-double.
 113
 114     * configure.ac
 115     Bump version to 1.0.0 due to API change.
 116
 117 2009-02-26  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 118
 119     * Win32/Makefile.msvc
 120     Add /Zm1000 to the CFLAGS as suggested by Kun Niu.
 121
 122     * doc/api_full.html doc/api_callback.html
 123     Improve explanation of use of src_set_ratio() function.
 124
 125 2009-02-14  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 126
 127     * src/common.h src/samplerate.c
 128     Add new error value SRC_ERR_SINC_PREPARE_DATA_BAD_LEN.
 129
 130     * src/common.h
 131     Add WARN_UNUSED macro.
 132
 133     * src/src_sinc.c
 134     Fix a segfault which occurs when memcpy is passed a bad length parameter.
 135     This bug has zero security implications beyond the ability to cause a
 136     program hitting this bug to exit immediately with a segfault.
 137     See : http://www.mega-nerd.com/erikd/Blog/2009/Feb/14/index.html
 138     Thanks to David Cournapeau and Lev Givon for the bug report.
 139
 140     * doc/win32.html Makefile.am configure.ac
 141     Reinstate Win32/MSVC compile instructions.
 142
 143     * doc/*.html
 144     Update for new release.
 145
 146     * configure.ac
 147     Verison 0.1.7.
 148
 149 2009-02-13  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 150
 151     * src/common.h src/samplerate.c
 152     Fix SRC_ERR_BAD_SRC_RATIO error string. Thanks David Cournapeau.
 153
 154 2009-01-30  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 155
 156     * src/src_sinc.c
 157     Replace C99 "variable length arrays" with arrays allocated on the heap so
 158     that libsamplerate can be compiled with crappy compilers like MSVC.
 159
 160 2009-01-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 161
 162     * configure.ac NEWS README doc/*.html
 163     Updates for 0.1.6 release.
 164
 165 2009-01-12  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 166
 167     * tests/termination_test.c
 168     Fix termination test error on x86_64. Error probably due to difference in
 169     rounding.
 170
 171 2009-01-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 172
 173     * doc/win32.html
 174     Update win32 compile instructions to explain that this release cannot be
 175     compiled using the microsoft compiler.
 176
 177     * NEWS README doc/*.html
 178     Updates for 0.1.5 release.
 179
 180     * Makefile.am configure.ac
 181     Remove Win32 directory from distributed tarball.
 182
 183 2008-12-16  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 184
 185     * tests/multi_channel_test.c tests/multichan_throughput_test.c
 186     Update tests to make sure tests include tests for 10 channels.
 187
 188     * src/src_sinc.c
 189     Make 6 channel Sinc conversion another special case.
 190     Use Duff's Device to speed up the multi-channel case.
 191
 192     * tests/multi_channel_test.c
 193     Only test 1, 2 and 3 channels for ZOH and linear converters.
 194
 195 2008-12-15  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 196
 197     * src/samplerate.c
 198     Move variable definition out one scope level to avoid warnings from static
 199     analysis tools. Thanks Erik Hovland.
 200
 201     * tests/util.c
 202     Make sure FILE* is closed. Thanks Erik Hovland.
 203
 204     * tests/multi_channel_test.c tests/multichan_throughput_test.c
 205     Update tests to make sure tests include tests for 6 channels with the Sinc
 206     converters.
 207
 208 2008-12-13  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 209
 210     * tests/multichan_throughput_test.c
 211     Do throughput test on all three SINC based converters.
 212
 213     * src/src_sinc.c
 214     Rejig converter so filter coefficients are calculated once per frame and
 215     special case channel counts of 1, 2 and 4.
 216
 217 2008-12-12  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 218
 219     *  src/samplerate.c examples/audio_out.c tests/*.c
 220     Fix a couple of very minor warnings uncovered by Erik Hovland using a
 221     static analysis tool.
 222
 223     * src/src_*.c
 224     Fix a potential memory leak. Thanks to Peter G. Vavaroutsos for point this
 225     out.
 226
 227     * tests/multi_channel_test.c
 228     Robustify test.
 229
 230 2008-12-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 231
 232     * reconfigure.mk autogen.sh
 233     Remove the first, add the second.
 234
 235     * configure.ac
 236     Various updates.
 237
 238     * tests/multichan_throughput_test.c tests/Makefile.am
 239     Add new test and hook into build.
 240
 241 2008-11-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 242
 243     * doc/index.html
 244     Update best converter specs.
 245
 246 2008-10-22  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 247
 248     * examples/audio_out.c
 249     Fix gcc-4.3 compiler warning.
 250
 251 2008-10-17  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 252
 253     * doc/faq.html
 254     Add Q/A about accuracy of src_ratio field of SRC_DATA struct.
 255
 256 2008-10-09  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 257
 258     * INSTALL
 259     Fix minor typo. Thanks to Sean Wood.
 260
 261 2008-09-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 262
 263     * src/src_sinc.c
 264     Optimization. About a 5% improvement in throughput.
 265
 266 2008-09-26  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 267
 268     * tests/util.[ch]
 269     Add function print_cpu_name.
 270
 271     * tests/throughput_test.c
 272     Add ability to do best-of N runs, print CPU type.
 273
 274 2008-09-17  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 275
 276     * configure.ac
 277     Add AC_PROG_MKDIR_P.
 278
 279 2008-07-10  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 280
 281     * src/samplerate.c
 282     Fix a valgrind warning which occured when the call back function returns
 283     a count of zero without modifying the pointer value. Thanks to Paul Kelly.
 284
 285     * tests/callback_test.c
 286     Add a callback test where the callback returns a zero count without setting
 287     the data pointer. The problem can only be detected when run under valgrind.
 288
 289 2008-07-09  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 290
 291     * src/src_sinc.c
 292     Remove use of llrint because sizeof (increment_t) is guaranteed not to be 8.
 293
 294     * tests/callback_test.c
 295     Test with 2 channels for improved generality. Simplify setup.
 296
 297     * src/src_linear.c src/src_zoh.c
 298     Change local variable names to be the same across these two files for easier
 299     comparison.
 300
 301     * src/src_linear.c
 302     Fix a bug where the the converter was reading beyond the end of the input.
 303     Thanks to Paul Kelly for the bug report.
 304
 305 2008-07-02  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 306
 307     * tests/downsample_test.c
 308     New test file to test for buffer overrun bugs at extreme low conversion
 309     ratios.
 310
 311     * tests/Makefile.am
 312     Hook above test program into build.
 313
 314     * src/src_sinc.c
 315     Fix buffer overrrun bug at extreme low conversion ratios. Thanks to Russell
 316     O'Connor for the report.
 317
 318     * configure.ac NEWS README doc/*.html
 319     Update for 0.1.4 release.
 320
 321 2008-05-13  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 322
 323     * configure.ac
 324     Make use of libsndfile optional. Patch from Samuli Suominen.
 325
 326 2008-04-26  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 327
 328     * Win32/libsamplerate-0.def
 329     Add src_int_to_float/float_to_int_array to exports.
 330
 331     * examples/sndfile-resample.c
 332     Add printing of libsndfile version, modify libsamplerate version.
 333
 334 2008-03-23  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 335
 336     * doc/*.html
 337     Final documentation tweaks for release.
 338
 339 2008-03-17  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 340
 341     * tests/throughput_test.c
 342     Include config.h and float_cast.h." -- tests/throughput_test.c
 343
 344     * Make.bat Win32/*
 345     Bunch more Win32 updates.
 346
 347 2008-03-15  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 348
 349     * src/* tests/*
 350     Remove all traces of old SRC_OLD_SINC_* converters.
 351
 352     * Make.bat Win32/*
 353     Preliminary Win32 updates.
 354
 355     * configure.ac
 356     Bump version to 0.1.3.
 357
 358 2008-03-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 359
 360     * doc/api_simple.html
 361     Try once again to convince people that src_simple cannot be used on small
 362     chunks of a larger piece of audio.
 363
 364 2008-03-08  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 365
 366     * tests/snr_bw_test.c
 367     Remove bodgy old throughput calculations.
 368
 369 2008-03-07  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 370
 371     * tests/benchmark.c tests/throughput_test.c
 372     Rename former to the latter and make significant improvements.
 373
 374 2008-03-04  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 375
 376     * src/old_high_qual_coeffs.h src/old_mid_qual_coeffs.h
 377     Copy these from the old versions.
 378
 379     * src/high_qual_coeffs.h src/mid_qual_coeffs.h
 380     New versions of the coefficients with improved SNR.
 381
 382 2008-02-10  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 383
 384     * Makefile.am configure.ac
 385     Add DISTCHECK_CONFIGURE_FLAGS to Makefile.am and a bunch of configure
 386     cleanups.
 387
 388 2008-01-21  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 389
 390     * examples/audio_out.c
 391     Apply patch from Yair K. to fix compiles with OSS v4.
 392
 393 2007-07-07  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 394
 395     * acinclude.m4
 396     Add AC_CHECK_SIGNAL macro.
 397
 398     * configure.ac
 399     Use AC_CHECK_SIGNAL to check for SIGALRM.
 400
 401     * tests/callback_hang_test.c
 402     Use HAVE_SIGGALRM and add empty main function if it doesn't exist.
 403
 404 2007-06-15  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 405
 406     * src/*_coeffs.h
 407     Change the way the coefficients are defined for improved safety.
 408
 409     * src/src_sinc.c
 410     Adapt to the above.
 411
 412 2007-05-24  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 413
 414     * src/src_sinc.c
 415     Change macros into inline functions for better error checking.
 416
 417     * src/common.h
 418     Add static inline function fmod_one.
 419
 420     * src/*.c
 421     Use fmod_one where appropriate.
 422
 423 2007-05-12  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 424
 425     * tests.Makefile.am
 426     Fix includes for varispeed_test target.
 427
 428 2007-04-20  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 429
 430     * tests/snr_bw_test.c
 431     Remove cruft.
 432
 433     * doc/index.html
 434     Add link to Foobar 2000 plugin.
 435
 436     * configure.ac tests/callback_hang_test.c
 437     Test for functions alarm and signal and only compile test if both are
 438     available.
 439
 440 2007-01-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 441
 442     * src/samplerate.c
 443     Refactor checking of supplied src ratio against min and max.
 444
 445     * configure.ac
 446     Remove -pendantic from CFLAGS and add -std=gnu99.
 447
 448     * tests/callback_hang_test.c tests/Makefile.am
 449     Add new test program and hook it into build.
 450
 451     * src/src_linear.c src/src_sinc.c src/src_zoh.c
 452     Fix a bug where the src_callback_read () function would hang under varying
 453     src_ratio.
 454
 455 2007-01-21  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 456
 457     * doc/api.html doc/api_callback.html doc/api_misc.html
 458     Update docs to make handling of interleaved data more explicit.
 459
 460 2006-07-26  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 461
 462     * examples/audio_out.c
 463     Fix bug arising from last change.
 464
 465     * configure.ac
 466     Add -Wpointer-arith to CFLAGS.
 467
 468 2006-07-12  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 469
 470     * examples/audio_out.c
 471     Be more explicit about setting the audio output format.
 472
 473 2006-06-06  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 474
 475     * src/samplerate.c src/src_linear.c src/src_sinc.c
 476     Fix MSVC compiler warnings.
 477
 478 2006-05-26  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 479
 480     * tests/calc_snr.c
 481     Fix minor bug in analysis routines.
 482
 483     * tests/varispeed_test.c tests/snr_bw_test.c
 484     Fix knock on effects of above change.
 485
 486 2006-05-23  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 487
 488     * src/Makefile.am
 489     Update check-asm rule to check src_linear.c and src_zoh.c.
 490
 491     * src/src_linear.c
 492     Remove all uses of floor() function.
 493
 494 2006-04-18  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 495
 496     * src/samplerate.[ch] src/Version_script.in
 497     Add functions src_int_to_float_array and src_float_to_int_array.
 498
 499     * tests/float_short_test.c
 500     Update test to including testing of above.
 501
 502     * doc/api_misc.html
 503     Update docs for the above addition.
 504
 505 2006-03-31  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 506
 507     * src/common.h src/src_*.c src/samplerate.c
 508     Add slots for vari_process and const_process functions.
 509
 510     * tests/varispeed_test.c tests/Makefile.am
 511     Add new test and hook into build.
 512
 513     * tests/util.[ch]
 514     Add new function reverse_data.
 515
 516 2005-12-29  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 517
 518     * examples/sndfile-resample.c
 519     Exit if SRC ratio is 1.0. Suggested by Bram de Jong.
 520
 521 2005-11-19  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 522
 523     * examples/timewarp-file.c
 524     New file.
 525
 526 2005-09-06  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 527
 528     * src/float_cast.h
 529     Update to include Cygwin specific fixes.
 530
 531     * doc/api_callback.html
 532     Complete the documentation of the callback API.
 533
 534 2005-08-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 535
 536     * tests/termination_test.c
 537     Rename term_test() to init_term_test() and add extra test functionality
 538     to sanity test the first sample output after reset.
 539
 540     * src/src_zoh.c src/src_linear.c
 541     Fix bug found by new test. Thanks Stas Sergeev for bringint this to my
 542     attention.
 543
 544 2005-08-02  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 545
 546     * doc/Makefile.am
 547     Fix a bug preventing the inclusion of the html API docs in the tarball.
 548
 549     * src/src_zoh.c src/src_linear.c
 550     Improve calculation of input_index.
 551     Fix updating of input_index (thanks to Stas Sergeev).
 552
 553     * tests/calc_snr.c
 554     Fix a compile problem when FFTW is not present (thanks to Stas Sergeev).
 555
 556 2005-04-18  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 557
 558     * configure.ac src/Makefile.am
 559     Fix minor problems with generation of shared library version number.
 560
 561 2005-02-19  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 562
 563     * src/faq.html
 564     Add a question about the use of src_simple().
 565
 566     * src/api_simple.html
 567     Fix defintion of src_ratio.
 568
 569 2004-12-04  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 570
 571     * configure.ac tests/Makefile.am tests/*.c
 572     Ditch detection and use of libefence. Valgrind is a far better debugging
 573     tool.
 574
 575     * INSTALL
 576     Write complete libsamplerate specific install instructions.
 577
 578 2004-10-06  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 579
 580     * src/configure.ac src/makefile.am
 581     Finally fix the bulding of DLLs on Win32/MinGW.
 582
 583     * tests/makefile.am
 584     Fix running of tests on Win32/MinGW.
 585
 586 2004-09-30  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 587
 588     * configure.ac Win32/Makefile.mingw.in
 589     More support for compiling on Win32 using MinGW. Now uses FFTW3.
 590
 591     * examples/audio_out.c
 592     Remove include of <mmreg.h> on win32.
 593
 594 2004-09-12  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 595
 596     * configure.ac Win32/Makefile.mingw.in
 597     Add preliminary support for compiling on Win32 using MinGW.
 598
 599     * configure.ac
 600     Bump version to 0.1.2.
 601     Add --enable-gcc-werror configure option.
 602
 603     * examples/sndfile-resample.c tests/src-evaluate.c
 604     Use ISO C standard function remove instead of unlink.
 605
 606     * Win32/Makefile.msvc
 607     Add the top level directory to the include path (for sndfile.h).
 608
 609 2004-09-10  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 610
 611     * tests/util.h tests/*.c
 612     Move macros for ABS, MIN, MAX and ARRAY_LEN to util.h.
 613
 614     * tests/reset_test.c
 615     Add test function callback_reset_test() to test for the problem below.
 616
 617     * src/samplerate.c
 618     Reset SRC_PRIVATE fields saved_data and saved_frames in src_reset(). Thanks
 619     to Justin Drury for pointing this out.
 620
 621 2004-08-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 622
 623     * src/src_sinc.c
 624     Fix typos in converter name strings. Thanks to Tom Szilagyi for finding them.
 625
 626 2004-07-18  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 627
 628     * configure.ac
 629     Bump version to 0.1.1.
 630
 631     * doc/*.html Win32/config.h
 632     Changes for new version.
 633
 634     * Makefile.am src/Makefile.am
 635     Add "make check-asm" target which is not used by default.
 636
 637 2004-06-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 638
 639     * src/src_sinc.c
 640     Use fmod() to calculate input_index. This is more resitant to rounding
 641     errors than input_index -= floor (input_index).
 642
 643 2004-06-25  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 644
 645     * src/src_sinc.c
 646     Removed redundant field in SINC_FILTER struct.
 647
 648 2004-06-15  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 649
 650     * examples/sndfile-resample.c
 651     Modified to restart conversion if clipping has occurred.
 652
 653 2004-06-09  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 654
 655     * tests/benchmark.c
 656     Added benchmark program.
 657
 658 2004-05-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 659
 660     * tests/callback_test.c
 661     Improve callback_test to find input/output length mismatches. This also
 662     catches the bug Mark Deggeller reported.
 663
 664 2004-05-25  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 665
 666     * src/samplerate.c
 667     Fix a bug in src_callback_read() reported by Mark Deggeller. Data retreived
 668     but not used during one call to src_callback_read() must be saved for the
 669     next call.
 670
 671     * src/common.h
 672     Add fields saved_frames and saved_data to SF_PRIVATE struct for storing
 673     data between sucessive calls to src_callback_read().
 674     Also rearange the fields of SF_PRIVATE.
 675
 676 2004-03-20  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 677
 678     * configure.ac
 679     Use AC_HELP_STRING in AC_ARG_ENABLE statements.
 680
 681 2004-03-14  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 682
 683     * Win32/config.h Win32/sndfile.h
 684     Updates for Win32.
 685
 686 2004-02-19  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 687
 688     * NEWS README
 689     Finally got around to adding text to these.
 690
 691     * doc/win32.html doc/history.html
 692     Minor updates.
 693
 694 2004-01-26  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 695
 696     * src/common.h
 697     Changed allowed SRC ratio to range [1/256, 256].
 698
 699     * configure.ac tests/snr_bw_test.c tests/src-evaluate.c tests/Makefile.am
 700     Use FFTW3 instead of version 2.
 701
 702 2003-12-14  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 703
 704     * doc/api.html doc/api_misc.html
 705     Add documentation for conversions functions.
 706
 707     * doc/faq.html
 708     Add Q/A about detecting presence of libsamplerate.
 709
 710 2003-12-13  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 711
 712     * src/samplerate.h src/samplerate.c
 713     Added functions for short->float and float->short conversions on arrays
 714     of data. This will make it a little easier for people who need the
 715     input or output data in shorts rather than floats.
 716
 717     * configure.ac
 718     Added tests for CPU clipping mode which was required for the float to
 719     short conversion.
 720
 721     * tests/float_short_test.c
 722     New code for testing the new functionality.
 723
 724 2003-10-28  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 725
 726     * src/src_zoh.c src/src_linear.c
 727     Fixed an off-by-one indexing issue which was causing distortion at the
 728     boundaries between calls to src_process().
 729
 730     * tests/multi_channel_test.c
 731     Finally passing tests for all three access methods (simple, process and
 732     callback).
 733
 734 2003-10-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 735
 736     * tests/calc_snr.c
 737     SNR calculation was being screwed up because the peak detector was
 738     mistaking side lobes caused by the windowded FFT as noise/aliasing peaks.
 739     Therefore added code to wipe out the troughs between peaks which erases
 740     the side lobe peaks without affecting the noise/aliasing peaks.
 741
 742     * tests/multi_channel_test.c
 743     Added a callback_test to work on multiple channels.
 744
 745 2003-10-14  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 746
 747     * src/samplerate.h
 748     Add definitions for the callback based API (src_callback_new and
 749     src_callback_read).
 750
 751     * doc/*.html
 752     Add link to faq.html.
 753
 754     * doc/faq.html
 755     Add a new question/answer.
 756
 757     * src/samplerate.c tests/callback_test.c
 758     Move callback functions (src_callback_new and src_callback_read) from
 759     callback_test.c to samplerate.c
 760     Add checking to make sure that an SRC_STATE object created with
 761     src_callback_new() is not used with src_process() etc.
 762
 763     * examples/varispeed.c
 764     Add #include <stdlib.h> to prevent compiler warning.
 765
 766     * src/samplerate.h
 767     Add definitions for the callback based API.
 768
 769     * src/Version_script.in
 770     Add entries for two new public functions.
 771
 772 2003-10-12  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 773
 774     * tests/callback_test.c
 775     More work on getting callback based API working.
 776
 777     * tests/termination_test.c
 778     Tightened up the test pass crieria yet again. This shows up problems
 779     with the ZOH and Linear converters.
 780
 781     * src/src_zoh.c src/src_linear.c
 782     Fixed problems with converters shown up by improved tests.
 783
 784 2003-09-25  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 785
 786     * doc/api.html
 787     Be more explicit about the inclusion of <samplerate.h>.
 788
 789 2003-09-21  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 790
 791     * examples/sndfile-resample.c examples/audio_out.c
 792     Add include for <stdlib.h>.
 793
 794     * configure.ac
 795     Check for libsndfile >= 1.0.6.
 796
 797     * examples/sndfile-resample.c
 798     Turn on clipping of output when saving to integer PCM output formats.
 799
 800 2003-08-21  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 801
 802     * tests/callback_test.c
 803     Start work on a callback based API. The implementation will be done
 804     in this test program first and when it is working, the code that does
 805     the work will be moved back to the library code.
 806
 807 2003-08-19  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 808
 809     * doc/bugs.html
 810     New file detailing how to submit bug reports for SRC.
 811
 812 2003-08-13  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 813
 814     * libsamplerate.spec.in
 815     Apply corrections from Giuliano Pochini.
 816
 817 2003-08-05  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 818
 819     * tests/snr_bw_test.c
 820     Added test for conversion ratio of 1.0 for all converters. For this
 821     conversion ratio, all converters have a better than 149db SNR ratio.
 822
 823     * src/src_linear.c
 824     Changes to make this converter work more like src_zoh.c.
 825
 826 2003-05-04  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 827
 828     * doc/quality.html
 829     Fixed a couple of broken links pointed out by Anand Kumria.
 830
 831 2003-05-03  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 832
 833     * src/samplerate.h
 834     Add URL of API documentation to the top of file.
 835
 836     * doc/api_misc.html
 837     Clarify use of SRC_DATA struct.
 838
 839 2003-04-29  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 840
 841     * tests/reset_test.c
 842     Add call to src_set_ratio() to test that this function has been exported.
 843
 844 2003-03-24  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 845
 846     * samplerate.pc.in
 847     Changed 'sndfile' to 'samplerate'.
 848
 849 2003-02-08  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 850
 851     * src/src_zoh.c
 852     Fixed a bug causing clicks in the output data.
 853
 854 2003-02-07  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 855
 856     * src/samplerate.c
 857     Fixed a compiler warning.
 858
 859     * tests/termination_test.c
 860     Tightened up the test pass crieria.
 861
 862     * src/src_sinc.c
 863     Fixed bug showed up by new termination tests.
 864
 865 2003-02-04  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 866
 867     * examples/sndfile-resample.c
 868     Fixed a bug which was messing up handling of multi-channel files.
 869
 870     * tests/multi_channel_test.c
 871     Disabled all the new code.
 872
 873 2003-02-03  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 874
 875     * tests/multi_channel_test.c
 876     Rehacking multi-channel tests to find possible problems in src_process()
 877     when processing multichannel data. Need to use signal to noise ratio
 878     measurements.
 879
 880     * tests/Makefile.am
 881     Mods to add calc_snr.c and utils.c to build of multi_channel_test.
 882
 883     * tests/util.[ch]
 884     Add functions for interleaving and de-interleaving data.
 885
 886 2003-01-24  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 887
 888     * Win32/config.h
 889     Added Win32 specific #pragma to disable warnings when double precision
 890     constants are assigned to floats.
 891
 892     * tests/calc_snr.c
 893     Added #include <string.h> to prevent compiler warning about use of memset()
 894     function.
 895
 896 2003-01-13  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 897
 898     * src/samplerate.[ch]
 899     Added function src_set_ratio() at the suggestion of Dr William Bland.
 900
 901     * doc/api_full.html
 902     Added docs for above function.
 903
 904 2003-01-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 905
 906     * examples/Makefile.am tests/Makefile.am
 907     Fixes for Mac OSX.
 908     Tidy up handling addition of SNDFILE_CFLAGS
 909
 910 2003-01-08  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 911
 912     * Win32/config.h
 913     Disabled HAVE_STDINT_H for Win32.
 914
 915     * Win32/unistd.h
 916     Added empty header file for Win32.
 917
 918     * src/audio_out.c
 919     Final fixes to get audio out working on Win32.
 920
 921 2003-01-05  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 922
 923     * src/src_sinc.c
 924     Phase one or refactoring. Replace use of a circular buffer to hold short
 925     window of data with a linear buffer.
 926     Linear buffer requires that data is periodically copied from the end if
 927     the buffer back to the beginning. However, it also means that the
 928     calc_output() function no longer needs to calculate the next data index
 929     modulo the buffer length.
 930     Since the data index is calculated 40 times (minimum) per output sample,
 931     and the copy from end of buffer to start of buffer is done every 1000 or
 932     so output samples, this change results in a significant speedup (up to
 933     about 50% improvement for SRC_SINC_FASTEST).
 934     Memory use has increased somewhat (max 6k per channel per converter) due
 935     to this fix, but that should go down again during next phase of
 936     refactoring.
 937
 938     * examples/varispeed-play.c
 939     Fixed a bug where data_in and data_out buffers were overlapping.
 940
 941 2003-01-03  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 942
 943     * doc/win32.html
 944     Completed documentation on compiling for Win32.
 945
 946     * doc/*.html
 947     Added links to Win32 compiling information.
 948
 949     * configure.ac tests/Makefile.am
 950     Detect libefence and link it to all the test programs if configued
 951     with --enable-debug.
 952
 953     * tests/utils.[ch]
 954     New function force_efence_banner().
 955
 956     * tests/*test.c
 957     Add a call to force_efence_banner() to force printing of the Electric Fence
 958     banner at start of program.
 959
 960 2003-01-02  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 961
 962     * configure.ac
 963     Added --enable-debug configuration flag.
 964
 965     * tests/termination_test.c
 966     More modifications to catch corner cases.
 967     Added extra test to check for negative return values for input_frames_used
 968     and output_frames_gen fields of SRC_DATA.
 969
 970     * src/src_zoh.c src/src_linear.c
 971     Fixed more bugs found using modified streaming_test.
 972
 973     * src/samplerate.c
 974     Set input_frames and output_frames of SRC_DATA to zero if they are negative.
 975     Add check for overlapping SRC_DATA data_in and data_out arrays.
 976
 977     * doc/api_full.html
 978     Document the fact that the SRC_DATA->data_in and data_out arrays may not
 979     overlap. Thanks to Paul Davis for pointing out this documentation oversight.
 980
 981 2002-12-24  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 982
 983     * tests/termination_test.c tests/streaming_test.c
 984     Merged these two test programs into termination_test.c.
 985
 986     * tests/Makefile.am
 987     Modified for above change.
 988
 989     * src/src_zoh.c src/src_linear.c
 990     Fixed bug found using modified streaming_test.
 991
 992 2002-12-21  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 993
 994     * src/samplerate.c src/src_*.c
 995     Changed the way multichannel accounting was done.
 996
 997 2002-12-20  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 998
 999     * tests/snr_bw_test.c
1000     Rearranged order of tests.
1001
1002 2002-12-17  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1003
1004     * doc/lists.html
1005     Added "subscribe" HREF.
1006
1007 2002-12-15  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1008
1009     * src/src_zoh.c src/src_linear.c
1010     Fixed a bug which was causing an incorrent number of output samples to be
1011     generated for a given conversion ratio and number of input samples.
1012
1013     * tests/streaming_test.c tests/termination_test.c
1014     Modified pick up the above problem if it returns.
1015
1016 2002-12-14  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1017
1018     * tests/streaming_test.c
1019     Modified to mix long and short input buffers. This will help testing of
1020     smooth switching between standard sinc_process() and long_sinc_process().
1021
1022 2002-12-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1023
1024     * examples/audio_out.c
1025     More hacking to get this working on Win32.
1026
1027     * tests/src-evaluate.c
1028     More work.
1029
1030 2002-12-05  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1031
1032     * src/samplerate.[ch] src/Version_script.in Win32/libsamplerate.def
1033     Added function src_get_version() to return a version string.
1034
1035     * examples/sndfile-resample.c
1036     Add "--version" option to print out a version string.
1037
1038     * tests/src-evaluate.c
1039     New file. This program will be used to evaluate other sample rate
1040     converters for comparison to the rabbit.
1041
1042     * tests/calc_snr.[ch] tests/snr_bw_test.c
1043     Minor changes required by src-evaluate program.
1044
1045 2002-12-04  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1046
1047     * Win32/config.h
1048     New file for Win32. When building for Win32, this file gets copied into the
1049     src/ directory.
1050
1051     * Make.bat
1052     First attempt to see if this works.
1053
1054     * src/*.[ch]
1055     Changed name of SRC_PRIVATE filed errno to error because the brain damaged
1056     Win32 compiler was barfing.
1057
1058 2002-12-03  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1059
1060     * examples/audio_out.c
1061     Now working on MacOSX.
1062
1063     * examples/varispeed-play.c
1064     Add ability to choose converter.
1065
1066 2002-12-03  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1067
1068     * configure.ac
1069     Fixes for MacOSX.
1070
1071     * examples/new-varispeed-play.c examples/varispeed-play.c
1072     The first file replaces the later.
1073
1074 2002-12-02  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1075
1076     * src/float_cast.h
1077     New file for lrint() and lrintf().
1078
1079     * src/common.h src/src_*.c
1080     Add workaround for systems without <stdint.h>.
1081     Add #include "float_cast.h" to pick up replacement lrint() and lrintf()
1082     functions.
1083
1084     * examples/audio_out.c
1085     Fixes for the case where libsndfile is not found.
1086
1087     * new-varispeed-play.c
1088     Fixes for Solaris. Now works.
1089
1090 2002-11-29  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1091
1092     * src/high_qual_coeffs.h
1093     Conrad Parker found a file which produced clicking when run thru the
1094     SRC_SINC_BEST_QUALITY filter. Recalculated the filter with slightly less
1095     stringent design parameters and fixed the problem. The band with of the
1096     new filter is 96.6% while the old one was a little ober 97%.
1097
1098 2002-11-28  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1099
1100     * All files.
1101     libsamplerate is working. There have been a couple of private releases
1102     for people to test but no public release.