[Bug 28027] New:=?UTF-8?Q?=20=CE=BC=2Dlaw=20rendering=20with=20pauses=20and=20repetitions?=
http://bugs.winehq.org/show_bug.cgi?id=28027
Summary: μ-law rendering with pauses and repetitions Product: Wine Version: 1.3.26 Platform: x86 OS/Version: Mac OS X Status: UNCONFIRMED Severity: normal Priority: P2 Component: mmdevapi AssignedTo: wine-bugs@winehq.org ReportedBy: hoehle@users.sourceforge.net CC: aeikum@codeweavers.com
On MacOS, playing the 11kulaw.wav sample from the MCI shell causes intermittent pauses (of variable duration, roughly ~0.5s). After each pause, sound does not necessarily resume where it left off, but the audible output is correct (μ-law was decoded).
MCI shell (bug #20232, comment #10): wine wintest.exe mcishell open 11kulaw.wav alias u play u from 0 close u
By contrast, rendering IMA_ADPCM works. The difference is that ADPCM goes through Wine's codec, while μ-law is apparently handled by MacOS, as you can tell from the missing fixme:g711:G711_StreamSize lines that appear on Linux (or in older versions of Wine on MacOS, e.g. 1.1.35).
trace:coreaudio:AudioClient_Initialize (0x11d7b0)->(0, c0000, f4240, c350, 0x139 438, {d7875583-d596-4af9-9c30-7755c50b26f8}) trace:coreaudio:dump_fmt wFormatTag: 0x7 (Unknown) trace:coreaudio:dump_fmt nChannels: 1 trace:coreaudio:dump_fmt nSamplesPerSec: 11025 trace:coreaudio:dump_fmt nAvgBytesPerSec: 11025 trace:coreaudio:dump_fmt nBlockAlign: 1 trace:coreaudio:dump_fmt wBitsPerSample: 8
One possible fix might be to have mmdevapi refuse all but linear PCM. Perhaps this particular bug is nevertheless interesting because it might reveal faults in the handling of the Mac OS audio units. After all, μ-law might be transparent to the player because its samples/sec, blockalign etc. look exactly like linear PCM.
http://bugs.winehq.org/show_bug.cgi?id=28027
--- Comment #1 from Jörg Höhle hoehle@users.sourceforge.net 2011-09-19 09:41:48 CDT --- That bug is caused by waveform.c:WOD_PushData filling up the whole buffer with silence when the queue is empty. The queue is empty on MacOS because of bug #28093.
See bug #27937 for another issue caused by writing silence.
http://bugs.winehq.org/show_bug.cgi?id=28027
Raymond superquad.vortex2@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |superquad.vortex2@gmail.com
--- Comment #2 from Raymond superquad.vortex2@gmail.com 2011-09-24 22:23:38 CDT --- For alsa, au88x0 are the only pci sound cards which support u law and a law
using wine 1.3.29 and fallback "sysdefault" of pulse plugin
seem bug since the messages are repeated many times when playing
fixme:alsa:AudioClient_GetMixFormat Don't know what to do with 10000 channels, pretending there's only 2 channels
pulseaudio -k;./wine ../wintest.exe mcishell I: caps.c: Limited capabilities successfully to CAP_SYS_NICE. I: caps.c: Dropping root privileges. I: caps.c: Limited capabilities successfully to CAP_SYS_NICE. E: main.c: Failed to kill daemon: No such process fixme:service:scmdatabase_autostart_services Auto-start service L"DXDebug" failed to start: 2 mci.c:178: Type your commands to the MCI, end with Ctrl-Z/^D open ../11kulaw.wav alias u mci.c:188: command: open ../11kulaw.wav alias u mci.c:193: Response: 1 play u from 0 mci.c:188: command: play u from 0 fixme:alsa:AudioClient_GetMixFormat Don't know what to do with 10000 channels, pretending there's only 2 channels fixme:alsa:AudioClient_GetMixFormat Don't know what to do with 10000 channels, pretending there's only 2 channels fixme:alsa:AudioClient_GetMixFormat Don't know what to do with 10000 channels, pretending there's only 2 channels fixme:alsa:AudioClient_GetMixFormat Don't know what to do with 10000 channels, pretending there's only 2 channels fixme:alsa:AudioClient_GetMixFormat Don't know what to do with 10000 channels, pretending there's only 2 channels fixme:alsa:AudioClient_GetMixFormat Don't know what to do with 10000 channels, pretending there's only 2 channels fixme:alsa:AudioClient_GetMixFormat Don't know what to do with 10000 channels, pretending there's only 2 channels fixme:alsa:AudioClient_GetMixFormat Don't know what to do with 10000 channels, pretending there's only 2 channels fixme:alsa:AudioClient_GetMixFormat Don't know what to do with 10000 channels, pretending there's only 2 channels fixme:alsa:AudioClient_GetMixFormat Don't know what to do with 10000 channels, pretending there's only 2 channels fixme:alsa:AudioClient_GetMixFormat Don't know what to do with 10000 channels, pretending there's only 2 channels fixme:g711:G711_StreamSize fixme:g711:G711_StreamSize close u mci.c:188: command: close u fixme:console:CONSOLE_DefaultHandler Terminating process 8 on event 0
http://bugs.winehq.org/show_bug.cgi?id=28027
Austin English austinenglish@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |1.4.0
--- Comment #3 from Austin English austinenglish@gmail.com 2011-10-09 15:23:01 CDT --- Sound bug => 1.4 milestone.
http://bugs.winehq.org/show_bug.cgi?id=28027
--- Comment #4 from Raymond superquad.vortex2@gmail.com 2011-10-09 18:35:48 CDT --- μ-law , a-law and iadpcm are 4bits, may be some part of the code use wBitsPerSample / 8
http://source.winehq.org/git/wine.git/commitdiff/ad75d9a21722a9516b50868b1ec...
Refer to above patch
why Average bytes per second is 5588 at 11025Hz
wfa.wfx.nSamplesPerSec=11025; wfa.wfx.nAvgBytesPerSec=5588
http://bugs.winehq.org/show_bug.cgi?id=28027
Jörg Höhle hoehle@users.sourceforge.net changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |FIXED
--- Comment #5 from Jörg Höhle hoehle@users.sourceforge.net 2011-11-01 04:44:53 CDT --- Fixed by http://source.winehq.org/git/wine.git/commit/1cde966c35dcb0b5dc7bc5a6c42b788... winmm is no more writing silence.
why Average bytes per second is 5588 at 11025Hz
It's more than 4/8 because there's some overhead.
http://bugs.winehq.org/show_bug.cgi?id=28027
Jörg Höhle hoehle@users.sourceforge.net changed:
What |Removed |Added ---------------------------------------------------------------------------- Fixed by SHA1| |1cde966c35dcb0b5dc7bc5a6c42 | |b788f6d8f561c
http://bugs.winehq.org/show_bug.cgi?id=28027
Alexandre Julliard julliard@winehq.org changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |CLOSED
--- Comment #6 from Alexandre Julliard julliard@winehq.org 2011-11-04 14:14:33 CDT --- Closing bugs fixed in 1.3.32.
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