Article View: borland.public.cppbuilder.multimedia
Article #132Re: wave playback headers
From: Jonathan Benedicto
Date: Thu, 12 May 2005 19:21
Date: Thu, 12 May 2005 19:21
35 lines
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1981 bytes
<markhatesspam@spamcatch.com> wrote in message
news:4283a8dc@newsgroups.borland.com...
>
> I assume you open the wave out device with something like this :-
>
I do, like this:
MMRESULT mmr;
WAVEFORMATEX wfx;
wfx.wFormatTag = WAVE_FORMAT_PCM;
wfx.nChannels = (WORD)channels;
wfx.nSamplesPerSec = (DWORD)frequency;
wfx.wBitsPerSample = (WORD)sample_size;
wfx.nBlockAlign = (WORD)((wfx.nChannels * wfx.wBitsPerSample) / 8);
wfx.nAvgBytesPerSec = (DWORD)(wfx.nSamplesPerSec * wfx.nBlockAlign);
wfx.cbSize = 0;
mmr = waveOutOpen(PHWaveOut, WAVE_MAPPER, &wfx,
VComMMThread->ThreadID, 0, CALLBACK_THREAD);
if(mmr != MMSYSERR_NOERROR)
throw Exception("waveOutOpen failed");
> When you are processing and playing back your wave headers, you must
> set a bool as follows :-
I do have that, called IsPlaybackStarted.
> Change the routine I gave you to this :-
I didn't have the line 'mh->dwFlags=WHDR_DONE' in my code, but even
when I added it, it didn't help.
Jonathan
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X-Google-Thread: 10d0fc,771a0fcea1e567d2 X-Google-Attributes: gid10d0fc,public X-Google-Language: ENGLISH,ASCII-7-bit From: "Jonathan Benedicto" <incorrect@no.server> Newsgroups: borland.public.cppbuilder.multimedia References: <4283a8dc@newsgroups.borland.com> Subject: Re: wave playback headers Date: Thu, 12 May 2005 15:21:34 -0400 Lines: 37 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.2527 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 X-RFC2646: Format=Flowed; Original NNTP-Posting-Host: 69.158.114.32 Message-ID: <4283acbc$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1115925692 69.158.114.32 (12 May 2005 12:21:32 -0700) Path: arc1-ca.pugleaf.net!g2news1.google.com!news4.google.com!news.glorb.com!solnet.ch!solnet.ch!news-out.newsgroups.com!propagator2-sterling.newsfeeds.com!news-in.nuthinbutnews.com!news-in.newsfeeds.com!in.nntp.be!caladan.landsraad.net!newsgroups.borland.com!not-for-mail