libsamplerate/ChangeLog

   1 2013-03-29  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
   2
   3     * src/src_sinc.c
   4     Fix a read beyond end of coefficent array problem uncovered by gcc-4.8's
   5     -fsanitize=address feature and reported by Cristian Rodríguez.
   6
   7     Since this is reading filter coefficients from rodata memory and no write
   8     is possible, is is not exploitable from a security point of view.
   9
  10     Solution was to reduce the half_coeff_len value for each filter by one.
  11
  12 2013-01-16  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  13
  14     * src/samplerate.h src/common.h
  15     Make SRC_DATA const correct. Thanks to Nikos Chantziaras for the suggestion.
  16
  17 2012-10-07  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  18
  19     * examples/sndfile-resample.c
  20     Add a --no-normalize cmd line option. Thanks to Adriano Moura for the
  21     patch.
  22
  23 2012-09-28  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  24
  25     * tests/varispeed_test.c
  26     FIx compile error.
  27
  28 2012-08-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  29
  30     * src/common.h src/samplerate.c
  31     Add SRC_ERR_BAD_INTERNAL_STATE error number and string.
  32     Move function is_bad_src_ratio() to common.h.
  33
  34     * src/src_linear.c src/src_sinc.c src/src_zoh.c
  35     Validate internally stashed src_ratio value.
  36
  37 2012-08-23  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  38
  39     * tests/multi_channel_test.c tests/snr_bw_test.c tests/varispeed_test.c
  40     Use fftw_cleanup() to remove all memory leaks reported by valgrind.
  41
  42     * doc/license.html
  43     Specify GPLv2 or GPLv3.
  44
  45 2012-08-22  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  46
  47     * src/src_sinc.c
  48     Cleanup calculation of float_increment.
  49
  50 2012-03-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  51
  52     * src/samplerate.c
  53     Fix error message for error SRC_ERR_BAD_DATA_PTR. Thanks for oneman in
  54     #xiph on Freenode.
  55
  56     * examples/audio_out.c
  57     Minor tweaks to Windows and OSX code.
  58
  59 2011-11-05  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  60
  61     * src/samplerate.h
  62     Removed unused typedef struct SRC_CB_DATA.
  63
  64     * examples/varispeed-play.c
  65     Rewrite to use the callback version of the API. This new version is far
  66     simpler and far easier to understand.
  67
  68 2011-11-02  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  69
  70     * configure.ac examples/Makefile.am
  71     Detect ALSA and use it in varispeed-play.
  72
  73     * examples/audio_out.[ch]
  74     On Linux used ALSA instead of OSS when available.
  75
  76     * src/samplerate.c src/src_linear.c src/src_zoh.c \
  77             examples/sndfile-resample.c examples/timewarp-file.c
  78     Fix warnings from the Goanna static analysis tool.
  79
  80 2011-08-15  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  81
  82     * configure.ac
  83     Add symbol support for kfreebsd-*-gnu-*.
  84
  85     * configure.ac doc/Makefile.am
  86     Improve installation of html docs.
  87
  88     * examples/audio_out.c tests/callback_hang_test.c
  89     Fix compiler warnings.
  90
  91     * NEWS README Win32/config.h doc/*.html
  92     Updates for 0.1.8 release.
  93
  94     * configure.ac
  95     Release 0.1.8.
  96
  97 2011-02-22  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
  98
  99     * tests/util.[ch]
 100     Rename function print_cpu_name() to get_cpu_name(). Add code for Mac OSX and
 101     FreeBSD.
 102
 103     * tests/multichan_throughput_test.c tests/throughput_test.c
 104     Update to use get_cpu_name().
 105
 106 2010-11-04  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 107
 108     * src/*.[ch]
 109     Fix typo in comments.
 110
 111 2010-10-16  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 112
 113     * src/fastest_coeffs.h src/high_qual_coeffs.h src/mid_qual_coeffs.h
 114     Fix typo in comments.
 115
 116     * configure.ac
 117     Add AM_SILENT_RULES.
 118
 119     * doc/download.html
 120     Add a GPG signature.
 121
 122 2010-09-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 123
 124     * src/float_cast.h
 125     Add lrint/lrintf version for Win64. Thanks to Dmitry Baikov.
 126
 127 2010-01-10  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 128
 129     * examples/sndfile-resample.c
 130     Prevent creation of double length output files when conversion is restarted
 131     due to clipping of the output when the format is FLAC. This problem arises
 132     due to libsndfile's in ability to seek in a FLAC file during write.
 133
 134     * src/samplerate.h tests/termination_test.c
 135     Revert change that moved the src_ratio field to the start of SRC_DATA
 136     struct. This change does have some merit, but is not worth it considering
 137     that its an API change. This idea will be reconsidered when the API does
 138     change.
 139
 140 2009-12-01  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 141
 142     * doc/win32.html
 143     Update instructions.
 144
 145     * Win32/Makefile.msvc
 146     Add /Zm200 to CFLAGS.
 147
 148 2009-11-29  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 149
 150     * src/common.h
 151     Add macro UNUSED for marking function parameters as unused.
 152
 153 2009-10-07  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 154
 155     * tests/misc_test.c
 156     Add zero_input_test() from debian bug #506722.
 157
 158     * src/src_linear.c src/src_zoh.c
 159     Fix for bug in zero_input_test(). Both these converters crashed if the
 160     input_frames field of SRC_DATA was zero.
 161
 162 2009-09-16  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 163
 164     * M4/endian.m4
 165     Fix detection of CPU endian-ness when cross compiling.
 166
 167 2009-08-24  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 168
 169     * tests/termination_test.c
 170     Add test to detect a particular kind of termination error.
 171
 172     * src/src_sinc.c
 173     Fix a termination condition bug.
 174
 175 2009-06-25  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 176
 177     * src/samplerate.h
 178     Change definition of SRC_STATE to be kinder to some slightly broken
 179     compilers. Thanks to Rob Brown for suggesting this fix.
 180
 181 2009-04-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 182
 183     * M4/check_signal.m4 M4/clip_mode.m4 M4/lrint.m4 M4/lrintf.m4
 184     New files used instead of acinclude.m4.
 185
 186 2009-04-03  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 187
 188     * src/samplerate.h
 189     Move src_ratio field to the start of the SRC_DATA struct to ensure it gets
 190     aligned correctly when either the library or client code gets compiled with
 191     -malign-double.
 192
 193     * configure.ac
 194     Bump version to 1.0.0 due to API change.
 195
 196 2009-02-26  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 197
 198     * Win32/Makefile.msvc
 199     Add /Zm1000 to the CFLAGS as suggested by Kun Niu.
 200
 201     * doc/api_full.html doc/api_callback.html
 202     Improve explanation of use of src_set_ratio() function.
 203
 204 2009-02-14  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 205
 206     * src/common.h src/samplerate.c
 207     Add new error value SRC_ERR_SINC_PREPARE_DATA_BAD_LEN.
 208
 209     * src/common.h
 210     Add WARN_UNUSED macro.
 211
 212     * src/src_sinc.c
 213     Fix a segfault which occurs when memcpy is passed a bad length parameter.
 214     This bug has zero security implications beyond the ability to cause a
 215     program hitting this bug to exit immediately with a segfault.
 216     See : http://www.mega-nerd.com/erikd/Blog/2009/Feb/14/index.html
 217     Thanks to David Cournapeau and Lev Givon for the bug report.
 218
 219     * doc/win32.html Makefile.am configure.ac
 220     Reinstate Win32/MSVC compile instructions.
 221
 222     * doc/*.html
 223     Update for new release.
 224
 225     * configure.ac
 226     Verison 0.1.7.
 227
 228 2009-02-13  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 229
 230     * src/common.h src/samplerate.c
 231     Fix SRC_ERR_BAD_SRC_RATIO error string. Thanks David Cournapeau.
 232
 233 2009-01-30  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 234
 235     * src/src_sinc.c
 236     Replace C99 "variable length arrays" with arrays allocated on the heap so
 237     that libsamplerate can be compiled with crappy compilers like MSVC.
 238
 239 2009-01-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 240
 241     * configure.ac NEWS README doc/*.html
 242     Updates for 0.1.6 release.
 243
 244 2009-01-12  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 245
 246     * tests/termination_test.c
 247     Fix termination test error on x86_64. Error probably due to difference in
 248     rounding.
 249
 250 2009-01-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 251
 252     * doc/win32.html
 253     Update win32 compile instructions to explain that this release cannot be
 254     compiled using the microsoft compiler.
 255
 256     * NEWS README doc/*.html
 257     Updates for 0.1.5 release.
 258
 259     * Makefile.am configure.ac
 260     Remove Win32 directory from distributed tarball.
 261
 262 2008-12-16  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 263
 264     * tests/multi_channel_test.c tests/multichan_throughput_test.c
 265     Update tests to make sure tests include tests for 10 channels.
 266
 267     * src/src_sinc.c
 268     Make 6 channel Sinc conversion another special case.
 269     Use Duff's Device to speed up the multi-channel case.
 270
 271     * tests/multi_channel_test.c
 272     Only test 1, 2 and 3 channels for ZOH and linear converters.
 273
 274 2008-12-15  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 275
 276     * src/samplerate.c
 277     Move variable definition out one scope level to avoid warnings from static
 278     analysis tools. Thanks Erik Hovland.
 279
 280     * tests/util.c
 281     Make sure FILE* is closed. Thanks Erik Hovland.
 282
 283     * tests/multi_channel_test.c tests/multichan_throughput_test.c
 284     Update tests to make sure tests include tests for 6 channels with the Sinc
 285     converters.
 286
 287 2008-12-13  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 288
 289     * tests/multichan_throughput_test.c
 290     Do throughput test on all three SINC based converters.
 291
 292     * src/src_sinc.c
 293     Rejig converter so filter coefficients are calculated once per frame and
 294     special case channel counts of 1, 2 and 4.
 295
 296 2008-12-12  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 297
 298     *  src/samplerate.c examples/audio_out.c tests/*.c
 299     Fix a couple of very minor warnings uncovered by Erik Hovland using a
 300     static analysis tool.
 301
 302     * src/src_*.c
 303     Fix a potential memory leak. Thanks to Peter G. Vavaroutsos for point this
 304     out.
 305
 306     * tests/multi_channel_test.c
 307     Robustify test.
 308
 309 2008-12-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 310
 311     * reconfigure.mk autogen.sh
 312     Remove the first, add the second.
 313
 314     * configure.ac
 315     Various updates.
 316
 317     * tests/multichan_throughput_test.c tests/Makefile.am
 318     Add new test and hook into build.
 319
 320 2008-11-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 321
 322     * doc/index.html
 323     Update best converter specs.
 324
 325 2008-10-22  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 326
 327     * examples/audio_out.c
 328     Fix gcc-4.3 compiler warning.
 329
 330 2008-10-17  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 331
 332     * doc/faq.html
 333     Add Q/A about accuracy of src_ratio field of SRC_DATA struct.
 334
 335 2008-10-09  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 336
 337     * INSTALL
 338     Fix minor typo. Thanks to Sean Wood.
 339
 340 2008-09-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 341
 342     * src/src_sinc.c
 343     Optimization. About a 5% improvement in throughput.
 344
 345 2008-09-26  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 346
 347     * tests/util.[ch]
 348     Add function print_cpu_name.
 349
 350     * tests/throughput_test.c
 351     Add ability to do best-of N runs, print CPU type.
 352
 353 2008-09-17  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 354
 355     * configure.ac
 356     Add AC_PROG_MKDIR_P.
 357
 358 2008-07-10  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 359
 360     * src/samplerate.c
 361     Fix a valgrind warning which occured when the call back function returns
 362     a count of zero without modifying the pointer value. Thanks to Paul Kelly.
 363
 364     * tests/callback_test.c
 365     Add a callback test where the callback returns a zero count without setting
 366     the data pointer. The problem can only be detected when run under valgrind.
 367
 368 2008-07-09  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 369
 370     * src/src_sinc.c
 371     Remove use of llrint because sizeof (increment_t) is guaranteed not to be 8.
 372
 373     * tests/callback_test.c
 374     Test with 2 channels for improved generality. Simplify setup.
 375
 376     * src/src_linear.c src/src_zoh.c
 377     Change local variable names to be the same across these two files for easier
 378     comparison.
 379
 380     * src/src_linear.c
 381     Fix a bug where the the converter was reading beyond the end of the input.
 382     Thanks to Paul Kelly for the bug report.
 383
 384 2008-07-02  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 385
 386     * tests/downsample_test.c
 387     New test file to test for buffer overrun bugs at extreme low conversion
 388     ratios.
 389
 390     * tests/Makefile.am
 391     Hook above test program into build.
 392
 393     * src/src_sinc.c
 394     Fix buffer overrrun bug at extreme low conversion ratios. Thanks to Russell
 395     O'Connor for the report.
 396
 397     * configure.ac NEWS README doc/*.html
 398     Update for 0.1.4 release.
 399
 400 2008-05-13  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 401
 402     * configure.ac
 403     Make use of libsndfile optional. Patch from Samuli Suominen.
 404
 405 2008-04-26  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 406
 407     * Win32/libsamplerate-0.def
 408     Add src_int_to_float/float_to_int_array to exports.
 409
 410     * examples/sndfile-resample.c
 411     Add printing of libsndfile version, modify libsamplerate version.
 412
 413 2008-03-23  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 414
 415     * doc/*.html
 416     Final documentation tweaks for release.
 417
 418 2008-03-17  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 419
 420     * tests/throughput_test.c
 421     Include config.h and float_cast.h." -- tests/throughput_test.c
 422
 423     * Make.bat Win32/*
 424     Bunch more Win32 updates.
 425
 426 2008-03-15  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 427
 428     * src/* tests/*
 429     Remove all traces of old SRC_OLD_SINC_* converters.
 430
 431     * Make.bat Win32/*
 432     Preliminary Win32 updates.
 433
 434     * configure.ac
 435     Bump version to 0.1.3.
 436
 437 2008-03-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 438
 439     * doc/api_simple.html
 440     Try once again to convince people that src_simple cannot be used on small
 441     chunks of a larger piece of audio.
 442
 443 2008-03-08  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 444
 445     * tests/snr_bw_test.c
 446     Remove bodgy old throughput calculations.
 447
 448 2008-03-07  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 449
 450     * tests/benchmark.c tests/throughput_test.c
 451     Rename former to the latter and make significant improvements.
 452
 453 2008-03-04  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 454
 455     * src/old_high_qual_coeffs.h src/old_mid_qual_coeffs.h
 456     Copy these from the old versions.
 457
 458     * src/high_qual_coeffs.h src/mid_qual_coeffs.h
 459     New versions of the coefficients with improved SNR.
 460
 461 2008-02-10  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 462
 463     * Makefile.am configure.ac
 464     Add DISTCHECK_CONFIGURE_FLAGS to Makefile.am and a bunch of configure
 465     cleanups.
 466
 467 2008-01-21  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 468
 469     * examples/audio_out.c
 470     Apply patch from Yair K. to fix compiles with OSS v4.
 471
 472 2007-07-07  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 473
 474     * acinclude.m4
 475     Add AC_CHECK_SIGNAL macro.
 476
 477     * configure.ac
 478     Use AC_CHECK_SIGNAL to check for SIGALRM.
 479
 480     * tests/callback_hang_test.c
 481     Use HAVE_SIGGALRM and add empty main function if it doesn't exist.
 482
 483 2007-06-15  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 484
 485     * src/*_coeffs.h
 486     Change the way the coefficients are defined for improved safety.
 487
 488     * src/src_sinc.c
 489     Adapt to the above.
 490
 491 2007-05-24  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 492
 493     * src/src_sinc.c
 494     Change macros into inline functions for better error checking.
 495
 496     * src/common.h
 497     Add static inline function fmod_one.
 498
 499     * src/*.c
 500     Use fmod_one where appropriate.
 501
 502 2007-05-12  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 503
 504     * tests.Makefile.am
 505     Fix includes for varispeed_test target.
 506
 507 2007-04-20  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 508
 509     * tests/snr_bw_test.c
 510     Remove cruft.
 511
 512     * doc/index.html
 513     Add link to Foobar 2000 plugin.
 514
 515     * configure.ac tests/callback_hang_test.c
 516     Test for functions alarm and signal and only compile test if both are
 517     available.
 518
 519 2007-01-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 520
 521     * src/samplerate.c
 522     Refactor checking of supplied src ratio against min and max.
 523
 524     * configure.ac
 525     Remove -pendantic from CFLAGS and add -std=gnu99.
 526
 527     * tests/callback_hang_test.c tests/Makefile.am
 528     Add new test program and hook it into build.
 529
 530     * src/src_linear.c src/src_sinc.c src/src_zoh.c
 531     Fix a bug where the src_callback_read () function would hang under varying
 532     src_ratio.
 533
 534 2007-01-21  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 535
 536     * doc/api.html doc/api_callback.html doc/api_misc.html
 537     Update docs to make handling of interleaved data more explicit.
 538
 539 2006-07-26  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 540
 541     * examples/audio_out.c
 542     Fix bug arising from last change.
 543
 544     * configure.ac
 545     Add -Wpointer-arith to CFLAGS.
 546
 547 2006-07-12  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 548
 549     * examples/audio_out.c
 550     Be more explicit about setting the audio output format.
 551
 552 2006-06-06  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 553
 554     * src/samplerate.c src/src_linear.c src/src_sinc.c
 555     Fix MSVC compiler warnings.
 556
 557 2006-05-26  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 558
 559     * tests/calc_snr.c
 560     Fix minor bug in analysis routines.
 561
 562     * tests/varispeed_test.c tests/snr_bw_test.c
 563     Fix knock on effects of above change.
 564
 565 2006-05-23  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 566
 567     * src/Makefile.am
 568     Update check-asm rule to check src_linear.c and src_zoh.c.
 569
 570     * src/src_linear.c
 571     Remove all uses of floor() function.
 572
 573 2006-04-18  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 574
 575     * src/samplerate.[ch] src/Version_script.in
 576     Add functions src_int_to_float_array and src_float_to_int_array.
 577
 578     * tests/float_short_test.c
 579     Update test to including testing of above.
 580
 581     * doc/api_misc.html
 582     Update docs for the above addition.
 583
 584 2006-03-31  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 585
 586     * src/common.h src/src_*.c src/samplerate.c
 587     Add slots for vari_process and const_process functions.
 588
 589     * tests/varispeed_test.c tests/Makefile.am
 590     Add new test and hook into build.
 591
 592     * tests/util.[ch]
 593     Add new function reverse_data.
 594
 595 2005-12-29  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 596
 597     * examples/sndfile-resample.c
 598     Exit if SRC ratio is 1.0. Suggested by Bram de Jong.
 599
 600 2005-11-19  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 601
 602     * examples/timewarp-file.c
 603     New file.
 604
 605 2005-09-06  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 606
 607     * src/float_cast.h
 608     Update to include Cygwin specific fixes.
 609
 610     * doc/api_callback.html
 611     Complete the documentation of the callback API.
 612
 613 2005-08-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 614
 615     * tests/termination_test.c
 616     Rename term_test() to init_term_test() and add extra test functionality
 617     to sanity test the first sample output after reset.
 618
 619     * src/src_zoh.c src/src_linear.c
 620     Fix bug found by new test. Thanks Stas Sergeev for bringint this to my
 621     attention.
 622
 623 2005-08-02  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 624
 625     * doc/Makefile.am
 626     Fix a bug preventing the inclusion of the html API docs in the tarball.
 627
 628     * src/src_zoh.c src/src_linear.c
 629     Improve calculation of input_index.
 630     Fix updating of input_index (thanks to Stas Sergeev).
 631
 632     * tests/calc_snr.c
 633     Fix a compile problem when FFTW is not present (thanks to Stas Sergeev).
 634
 635 2005-04-18  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 636
 637     * configure.ac src/Makefile.am
 638     Fix minor problems with generation of shared library version number.
 639
 640 2005-02-19  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 641
 642     * src/faq.html
 643     Add a question about the use of src_simple().
 644
 645     * src/api_simple.html
 646     Fix defintion of src_ratio.
 647
 648 2004-12-04  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 649
 650     * configure.ac tests/Makefile.am tests/*.c
 651     Ditch detection and use of libefence. Valgrind is a far better debugging
 652     tool.
 653
 654     * INSTALL
 655     Write complete libsamplerate specific install instructions.
 656
 657 2004-10-06  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 658
 659     * src/configure.ac src/makefile.am
 660     Finally fix the bulding of DLLs on Win32/MinGW.
 661
 662     * tests/makefile.am
 663     Fix running of tests on Win32/MinGW.
 664
 665 2004-09-30  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 666
 667     * configure.ac Win32/Makefile.mingw.in
 668     More support for compiling on Win32 using MinGW. Now uses FFTW3.
 669
 670     * examples/audio_out.c
 671     Remove include of <mmreg.h> on win32.
 672
 673 2004-09-12  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 674
 675     * configure.ac Win32/Makefile.mingw.in
 676     Add preliminary support for compiling on Win32 using MinGW.
 677
 678     * configure.ac
 679     Bump version to 0.1.2.
 680     Add --enable-gcc-werror configure option.
 681
 682     * examples/sndfile-resample.c tests/src-evaluate.c
 683     Use ISO C standard function remove instead of unlink.
 684
 685     * Win32/Makefile.msvc
 686     Add the top level directory to the include path (for sndfile.h).
 687
 688 2004-09-10  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 689
 690     * tests/util.h tests/*.c
 691     Move macros for ABS, MIN, MAX and ARRAY_LEN to util.h.
 692
 693     * tests/reset_test.c
 694     Add test function callback_reset_test() to test for the problem below.
 695
 696     * src/samplerate.c
 697     Reset SRC_PRIVATE fields saved_data and saved_frames in src_reset(). Thanks
 698     to Justin Drury for pointing this out.
 699
 700 2004-08-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 701
 702     * src/src_sinc.c
 703     Fix typos in converter name strings. Thanks to Tom Szilagyi for finding them.
 704
 705 2004-07-18  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 706
 707     * configure.ac
 708     Bump version to 0.1.1.
 709
 710     * doc/*.html Win32/config.h
 711     Changes for new version.
 712
 713     * Makefile.am src/Makefile.am
 714     Add "make check-asm" target which is not used by default.
 715
 716 2004-06-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 717
 718     * src/src_sinc.c
 719     Use fmod() to calculate input_index. This is more resitant to rounding
 720     errors than input_index -= floor (input_index).
 721
 722 2004-06-25  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 723
 724     * src/src_sinc.c
 725     Removed redundant field in SINC_FILTER struct.
 726
 727 2004-06-15  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 728
 729     * examples/sndfile-resample.c
 730     Modified to restart conversion if clipping has occurred.
 731
 732 2004-06-09  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 733
 734     * tests/benchmark.c
 735     Added benchmark program.
 736
 737 2004-05-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 738
 739     * tests/callback_test.c
 740     Improve callback_test to find input/output length mismatches. This also
 741     catches the bug Mark Deggeller reported.
 742
 743 2004-05-25  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 744
 745     * src/samplerate.c
 746     Fix a bug in src_callback_read() reported by Mark Deggeller. Data retreived
 747     but not used during one call to src_callback_read() must be saved for the
 748     next call.
 749
 750     * src/common.h
 751     Add fields saved_frames and saved_data to SF_PRIVATE struct for storing
 752     data between sucessive calls to src_callback_read().
 753     Also rearange the fields of SF_PRIVATE.
 754
 755 2004-03-20  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 756
 757     * configure.ac
 758     Use AC_HELP_STRING in AC_ARG_ENABLE statements.
 759
 760 2004-03-14  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 761
 762     * Win32/config.h Win32/sndfile.h
 763     Updates for Win32.
 764
 765 2004-02-19  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 766
 767     * NEWS README
 768     Finally got around to adding text to these.
 769
 770     * doc/win32.html doc/history.html
 771     Minor updates.
 772
 773 2004-01-26  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 774
 775     * src/common.h
 776     Changed allowed SRC ratio to range [1/256, 256].
 777
 778     * configure.ac tests/snr_bw_test.c tests/src-evaluate.c tests/Makefile.am
 779     Use FFTW3 instead of version 2.
 780
 781 2003-12-14  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 782
 783     * doc/api.html doc/api_misc.html
 784     Add documentation for conversions functions.
 785
 786     * doc/faq.html
 787     Add Q/A about detecting presence of libsamplerate.
 788
 789 2003-12-13  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 790
 791     * src/samplerate.h src/samplerate.c
 792     Added functions for short->float and float->short conversions on arrays
 793     of data. This will make it a little easier for people who need the
 794     input or output data in shorts rather than floats.
 795
 796     * configure.ac
 797     Added tests for CPU clipping mode which was required for the float to
 798     short conversion.
 799
 800     * tests/float_short_test.c
 801     New code for testing the new functionality.
 802
 803 2003-10-28  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 804
 805     * src/src_zoh.c src/src_linear.c
 806     Fixed an off-by-one indexing issue which was causing distortion at the
 807     boundaries between calls to src_process().
 808
 809     * tests/multi_channel_test.c
 810     Finally passing tests for all three access methods (simple, process and
 811     callback).
 812
 813 2003-10-27  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 814
 815     * tests/calc_snr.c
 816     SNR calculation was being screwed up because the peak detector was
 817     mistaking side lobes caused by the windowded FFT as noise/aliasing peaks.
 818     Therefore added code to wipe out the troughs between peaks which erases
 819     the side lobe peaks without affecting the noise/aliasing peaks.
 820
 821     * tests/multi_channel_test.c
 822     Added a callback_test to work on multiple channels.
 823
 824 2003-10-14  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 825
 826     * src/samplerate.h
 827     Add definitions for the callback based API (src_callback_new and
 828     src_callback_read).
 829
 830     * doc/*.html
 831     Add link to faq.html.
 832
 833     * doc/faq.html
 834     Add a new question/answer.
 835
 836     * src/samplerate.c tests/callback_test.c
 837     Move callback functions (src_callback_new and src_callback_read) from
 838     callback_test.c to samplerate.c
 839     Add checking to make sure that an SRC_STATE object created with
 840     src_callback_new() is not used with src_process() etc.
 841
 842     * examples/varispeed.c
 843     Add #include <stdlib.h> to prevent compiler warning.
 844
 845     * src/samplerate.h
 846     Add definitions for the callback based API.
 847
 848     * src/Version_script.in
 849     Add entries for two new public functions.
 850
 851 2003-10-12  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 852
 853     * tests/callback_test.c
 854     More work on getting callback based API working.
 855
 856     * tests/termination_test.c
 857     Tightened up the test pass crieria yet again. This shows up problems
 858     with the ZOH and Linear converters.
 859
 860     * src/src_zoh.c src/src_linear.c
 861     Fixed problems with converters shown up by improved tests.
 862
 863 2003-09-25  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 864
 865     * doc/api.html
 866     Be more explicit about the inclusion of <samplerate.h>.
 867
 868 2003-09-21  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 869
 870     * examples/sndfile-resample.c examples/audio_out.c
 871     Add include for <stdlib.h>.
 872
 873     * configure.ac
 874     Check for libsndfile >= 1.0.6.
 875
 876     * examples/sndfile-resample.c
 877     Turn on clipping of output when saving to integer PCM output formats.
 878
 879 2003-08-21  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 880
 881     * tests/callback_test.c
 882     Start work on a callback based API. The implementation will be done
 883     in this test program first and when it is working, the code that does
 884     the work will be moved back to the library code.
 885
 886 2003-08-19  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 887
 888     * doc/bugs.html
 889     New file detailing how to submit bug reports for SRC.
 890
 891 2003-08-13  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 892
 893     * libsamplerate.spec.in
 894     Apply corrections from Giuliano Pochini.
 895
 896 2003-08-05  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 897
 898     * tests/snr_bw_test.c
 899     Added test for conversion ratio of 1.0 for all converters. For this
 900     conversion ratio, all converters have a better than 149db SNR ratio.
 901
 902     * src/src_linear.c
 903     Changes to make this converter work more like src_zoh.c.
 904
 905 2003-05-04  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 906
 907     * doc/quality.html
 908     Fixed a couple of broken links pointed out by Anand Kumria.
 909
 910 2003-05-03  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 911
 912     * src/samplerate.h
 913     Add URL of API documentation to the top of file.
 914
 915     * doc/api_misc.html
 916     Clarify use of SRC_DATA struct.
 917
 918 2003-04-29  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 919
 920     * tests/reset_test.c
 921     Add call to src_set_ratio() to test that this function has been exported.
 922
 923 2003-03-24  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 924
 925     * samplerate.pc.in
 926     Changed 'sndfile' to 'samplerate'.
 927
 928 2003-02-08  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 929
 930     * src/src_zoh.c
 931     Fixed a bug causing clicks in the output data.
 932
 933 2003-02-07  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 934
 935     * src/samplerate.c
 936     Fixed a compiler warning.
 937
 938     * tests/termination_test.c
 939     Tightened up the test pass crieria.
 940
 941     * src/src_sinc.c
 942     Fixed bug showed up by new termination tests.
 943
 944 2003-02-04  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 945
 946     * examples/sndfile-resample.c
 947     Fixed a bug which was messing up handling of multi-channel files.
 948
 949     * tests/multi_channel_test.c
 950     Disabled all the new code.
 951
 952 2003-02-03  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 953
 954     * tests/multi_channel_test.c
 955     Rehacking multi-channel tests to find possible problems in src_process()
 956     when processing multichannel data. Need to use signal to noise ratio
 957     measurements.
 958
 959     * tests/Makefile.am
 960     Mods to add calc_snr.c and utils.c to build of multi_channel_test.
 961
 962     * tests/util.[ch]
 963     Add functions for interleaving and de-interleaving data.
 964
 965 2003-01-24  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 966
 967     * Win32/config.h
 968     Added Win32 specific #pragma to disable warnings when double precision
 969     constants are assigned to floats.
 970
 971     * tests/calc_snr.c
 972     Added #include <string.h> to prevent compiler warning about use of memset()
 973     function.
 974
 975 2003-01-13  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 976
 977     * src/samplerate.[ch]
 978     Added function src_set_ratio() at the suggestion of Dr William Bland.
 979
 980     * doc/api_full.html
 981     Added docs for above function.
 982
 983 2003-01-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 984
 985     * examples/Makefile.am tests/Makefile.am
 986     Fixes for Mac OSX.
 987     Tidy up handling addition of SNDFILE_CFLAGS
 988
 989 2003-01-08  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 990
 991     * Win32/config.h
 992     Disabled HAVE_STDINT_H for Win32.
 993
 994     * Win32/unistd.h
 995     Added empty header file for Win32.
 996
 997     * src/audio_out.c
 998     Final fixes to get audio out working on Win32.
 999
1000 2003-01-05  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1001
1002     * src/src_sinc.c
1003     Phase one or refactoring. Replace use of a circular buffer to hold short
1004     window of data with a linear buffer.
1005     Linear buffer requires that data is periodically copied from the end if
1006     the buffer back to the beginning. However, it also means that the
1007     calc_output() function no longer needs to calculate the next data index
1008     modulo the buffer length.
1009     Since the data index is calculated 40 times (minimum) per output sample,
1010     and the copy from end of buffer to start of buffer is done every 1000 or
1011     so output samples, this change results in a significant speedup (up to
1012     about 50% improvement for SRC_SINC_FASTEST).
1013     Memory use has increased somewhat (max 6k per channel per converter) due
1014     to this fix, but that should go down again during next phase of
1015     refactoring.
1016
1017     * examples/varispeed-play.c
1018     Fixed a bug where data_in and data_out buffers were overlapping.
1019
1020 2003-01-03  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1021
1022     * doc/win32.html
1023     Completed documentation on compiling for Win32.
1024
1025     * doc/*.html
1026     Added links to Win32 compiling information.
1027
1028     * configure.ac tests/Makefile.am
1029     Detect libefence and link it to all the test programs if configued
1030     with --enable-debug.
1031
1032     * tests/utils.[ch]
1033     New function force_efence_banner().
1034
1035     * tests/*test.c
1036     Add a call to force_efence_banner() to force printing of the Electric Fence
1037     banner at start of program.
1038
1039 2003-01-02  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1040
1041     * configure.ac
1042     Added --enable-debug configuration flag.
1043
1044     * tests/termination_test.c
1045     More modifications to catch corner cases.
1046     Added extra test to check for negative return values for input_frames_used
1047     and output_frames_gen fields of SRC_DATA.
1048
1049     * src/src_zoh.c src/src_linear.c
1050     Fixed more bugs found using modified streaming_test.
1051
1052     * src/samplerate.c
1053     Set input_frames and output_frames of SRC_DATA to zero if they are negative.
1054     Add check for overlapping SRC_DATA data_in and data_out arrays.
1055
1056     * doc/api_full.html
1057     Document the fact that the SRC_DATA->data_in and data_out arrays may not
1058     overlap. Thanks to Paul Davis for pointing out this documentation oversight.
1059
1060 2002-12-24  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1061
1062     * tests/termination_test.c tests/streaming_test.c
1063     Merged these two test programs into termination_test.c.
1064
1065     * tests/Makefile.am
1066     Modified for above change.
1067
1068     * src/src_zoh.c src/src_linear.c
1069     Fixed bug found using modified streaming_test.
1070
1071 2002-12-21  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1072
1073     * src/samplerate.c src/src_*.c
1074     Changed the way multichannel accounting was done.
1075
1076 2002-12-20  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1077
1078     * tests/snr_bw_test.c
1079     Rearranged order of tests.
1080
1081 2002-12-17  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1082
1083     * doc/lists.html
1084     Added "subscribe" HREF.
1085
1086 2002-12-15  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1087
1088     * src/src_zoh.c src/src_linear.c
1089     Fixed a bug which was causing an incorrent number of output samples to be
1090     generated for a given conversion ratio and number of input samples.
1091
1092     * tests/streaming_test.c tests/termination_test.c
1093     Modified pick up the above problem if it returns.
1094
1095 2002-12-14  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1096
1097     * tests/streaming_test.c
1098     Modified to mix long and short input buffers. This will help testing of
1099     smooth switching between standard sinc_process() and long_sinc_process().
1100
1101 2002-12-11  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1102
1103     * examples/audio_out.c
1104     More hacking to get this working on Win32.
1105
1106     * tests/src-evaluate.c
1107     More work.
1108
1109 2002-12-05  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1110
1111     * src/samplerate.[ch] src/Version_script.in Win32/libsamplerate.def
1112     Added function src_get_version() to return a version string.
1113
1114     * examples/sndfile-resample.c
1115     Add "--version" option to print out a version string.
1116
1117     * tests/src-evaluate.c
1118     New file. This program will be used to evaluate other sample rate
1119     converters for comparison to the rabbit.
1120
1121     * tests/calc_snr.[ch] tests/snr_bw_test.c
1122     Minor changes required by src-evaluate program.
1123
1124 2002-12-04  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1125
1126     * Win32/config.h
1127     New file for Win32. When building for Win32, this file gets copied into the
1128     src/ directory.
1129
1130     * Make.bat
1131     First attempt to see if this works.
1132
1133     * src/*.[ch]
1134     Changed name of SRC_PRIVATE filed errno to error because the brain damaged
1135     Win32 compiler was barfing.
1136
1137 2002-12-03  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1138
1139     * examples/audio_out.c
1140     Now working on MacOSX.
1141
1142     * examples/varispeed-play.c
1143     Add ability to choose converter.
1144
1145 2002-12-03  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1146
1147     * configure.ac
1148     Fixes for MacOSX.
1149
1150     * examples/new-varispeed-play.c examples/varispeed-play.c
1151     The first file replaces the later.
1152
1153 2002-12-02  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1154
1155     * src/float_cast.h
1156     New file for lrint() and lrintf().
1157
1158     * src/common.h src/src_*.c
1159     Add workaround for systems without <stdint.h>.
1160     Add #include "float_cast.h" to pick up replacement lrint() and lrintf()
1161     functions.
1162
1163     * examples/audio_out.c
1164     Fixes for the case where libsndfile is not found.
1165
1166     * new-varispeed-play.c
1167     Fixes for Solaris. Now works.
1168
1169 2002-11-29  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1170
1171     * src/high_qual_coeffs.h
1172     Conrad Parker found a file which produced clicking when run thru the
1173     SRC_SINC_BEST_QUALITY filter. Recalculated the filter with slightly less
1174     stringent design parameters and fixed the problem. The band with of the
1175     new filter is 96.6% while the old one was a little ober 97%.
1176
1177 2002-11-28  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
1178
1179     * All files.
1180     libsamplerate is working. There have been a couple of private releases
1181     for people to test but no public release.