193768 2007-09-25 16:56 0000 [WITH ONELINE FIX] media-plugins/alsa-plugins builds broken speex rate converter. 2007-10-20 15:46:46 0000 1 1 1 Unclassified Gentoo Linux Library unspecified x86 Linux RESOLVED FIXED P2 normal --- 1 sybolt@xs4all.nl alsa-bugs@gentoo.org flameeyes@gentoo.org ssuominen@gentoo.org sybolt@xs4all.nl sybolt@xs4all.nl 2007-09-25 16:56:35 0000 When media-libs/speex is installed, media-plugins/alsa-plugins links /usr/lib/alsa/libasound_module_rate_speexrate.so with the system libspeex, resulting in an unusable rate converter. Reproducible: Always Steps to Reproduce: 1.make sure media-libs/speex is installed 2.(Re)emerge media-plugins/alsa-plugins 3.echo "defaults.pcm.rate_converter \"speexrate\"" >> .asoundrc 4.mpg123 some_mp3.mp3 Actual Results: I hear nothing because mpg123 segfaults: <snipped> ALSA lib pcm_rate.c:1381:(snd_pcm_rate_open) Cannot find rate converter zsh: segmentation fault mpg123 Expected Results: a 44.1kHz mp3 should be automatically upmixed by dmix to 48kHz on a dmixed soundcard (by default any soundcard that doesn't do hardware mixing) I expect to hear music. The fix is simple: add the line --with-speex=builtin \ to econf in the ebuild, and media-plugins/alsa-plugins won't pick up the system libspeex, and build a working libasound_module_rate_speexrate.so. Alternatively, adding --with-speex=no \ instead will also fix the problem, by not building the speex rate converter at all. ssuominen@gentoo.org 2007-09-25 18:33:57 0000 media-lib/speex-1.2_beta2? If yes, does it work if you build it with USE="wideband"? If no, ignore this message. sybolt@xs4all.nl 2007-09-25 19:11:16 0000 (In reply to comment #1) > media-lib/speex-1.2_beta2? If yes, does it work if you build it with > USE="wideband"? If no, ignore this message. > I am on ~x86, and yes, I am media-libs/speex-1.2_beta2 (along with media-plugins/alsa-plugins-1.0.14). Reemerging speex with USE="wideband" produces the same result. Regards, Sybolt sybolt@xs4all.nl 2007-09-25 19:47:05 0000 Just tested reverting media-libs/speex-1.2_beta2 to media-libs/speex-1.1.12. This fixes the issue, so the problem is a speex API change. Anyway, I believe media-plugins/alsa-plugins needs to do one of 3 things: 1. disable the speex rate converter (--with-speex=no) 2. explicitly enable the builtin rate converter (--with-speex=buitin) 3. add a dependency on media-libs/speex (and --with-speex=lib) Although the last option will not produce a working rate converter until alsa-plugins is updated upstream to work with new speex. Regards, Sybolt ssuominen@gentoo.org 2007-09-25 20:25:35 0000 In fact, alsa-plugins-1.0.15_rc1 is out and configure.in has: [ snip ] if test "$PPH" = "lib"; then PKG_CHECK_MODULES(speex, [speex >= 1.2], [USE_LIBSPEEX="yes"], [USE_LIBS PEEX=""]) if test "$USE_LIBSPEEX" = "yes"; then AC_CHECK_LIB([speex], [speex_resampler_init], [USE_LIBSPEEX="yes"], [USE_LIBSPEEX=""]) fi if test "$USE_LIBSPEEX" = "yes"; then AC_DEFINE(USE_LIBSPEEX, 1, "Link with libspeex for resampler") else echo "No libspeex with resampler unit; use built-in code" PPH="builtin" fi fi [ snip ] So it's been updated to check for speex version 1.2 which has "A new resampler module has been added, providing arbitrary sampling rate conversion -- fast." from www.speex.org. Funny thing is, speex 1.2 is not out yet and latest is still 1.2_beta2 so they are depending on version control sources of upcoming speex release. # pkg-config --modversion speex 1.2beta2 phreak@gentoo.org 2007-10-20 15:46:46 0000 Thanks to Diego and Sybolt, I just committed a fixed ebuild. For future use, if you want the speex rate convertor, you need to add USE=speex to either package.use or your global USE list.