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use WAVERFORMATEXTENSIBLE in dsound where possible #29

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PortAudio-admin opened this issue Nov 22, 2006 · 5 comments
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use WAVERFORMATEXTENSIBLE in dsound where possible #29

PortAudio-admin opened this issue Nov 22, 2006 · 5 comments
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duplicate This issue or pull request already exists P3 Priority: Normal src-dsound MS DirectSound Host API /src/hostapi/dsound windows Affects MS Windows
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V20

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@PortAudio-admin
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Issue created by @RossBencina

WAVERFORMATEXTENSIBLE provides support for >2 channels and >16 bit with DirectSound. It should be used wherever possible/necessary with a fallback to WAVERFORMATEX if it fails. Richard Dobson has code for this. There are patches in the mailing list archive, or he should be pinged for the latest version.
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Comment by @RossBencina

Some progress has been made on this. PA/DSound now uses WAVEFORMATEXTENSIBLE for multichannel, and contains code (commented out, but which is almost there) for doing non-16 bit. The main work left to do is to handle renegotiation of sample format if the requested format fails (ie if 24 bit is requested, but dsound fails, we need to fall back to 16 bit).

See changesets r1268 r1258 for recent progress on this issue.

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Comment by @RossBencina

See also ticket #54

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Comment by @RossBencina

retired ticket since this issue is now covered by ticket #54

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Comment by @RossBencina

TRAC migration: propagating ticket status from TRAC

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Issue closed by @RossBencina

@PortAudio-admin PortAudio-admin added duplicate This issue or pull request already exists windows Affects MS Windows P3 Priority: Normal src-dsound MS DirectSound Host API /src/hostapi/dsound labels Sep 24, 2020
@PortAudio-admin PortAudio-admin added this to the V20 milestone Sep 24, 2020
@PortAudio-admin PortAudio-admin mentioned this issue Sep 24, 2020
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duplicate This issue or pull request already exists P3 Priority: Normal src-dsound MS DirectSound Host API /src/hostapi/dsound windows Affects MS Windows
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V20
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