DisplayVideoFrameSync with scheduled audio playback

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zwang135

  • Posts: 8
  • Joined: Fri May 04, 2018 1:30 am
  • Real Name: Zicheng Wang

DisplayVideoFrameSync with scheduled audio playback

PostFri Oct 12, 2018 9:59 am

Can I use DisplayVideoFrameSync method with scheduled audio playback? Thanks!
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Cameron Nichols

Blackmagic Design

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Re: DisplayVideoFrameSync with scheduled audio playback

PostThu Oct 18, 2018 4:26 am

Hi Zicheng,

When not using scheduled playback, the preferred flow is to use IDeckLinkOutput::WriteAudioSamplesSync.

Can I understand the use-case for your request?

Regards
Cameron
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zwang135

  • Posts: 8
  • Joined: Fri May 04, 2018 1:30 am
  • Real Name: Zicheng Wang

Re: DisplayVideoFrameSync with scheduled audio playback

PostMon Oct 22, 2018 2:26 am

Cameron Nichols wrote:Hi Zicheng,

When not using scheduled playback, the preferred flow is to use IDeckLinkOutput::WriteAudioSamplesSync.

Can I understand the use-case for your request?

Regards
Cameron

Hi Cameron,

I tried WriteAudioSamplesSync but the output sounded discontinuous, then I changed both video and audio to scheduled playback. Now I'm having a problem that GetBufferedAudioSampleFrameCount returns E_ACCESSDENIED sometimes, how do I avoid this?

Thanks!
Zicheng Wang

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