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OSX "Error getting supported output configs"

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难度
4/5
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3-5 天
新手友好度
35/100
Issue 类型
缺陷
描述清晰度
基本清楚
活跃度
停滞
技术栈
rust
领域
audio-video-rtc

调研方向

Start by reading the CoreAudio output configuration code and its tests; the issue does not name specific files or test entry points. Reproduce device enumeration on macOS with a two-channel output set to 16-bit Integer, then compare it with 24-bit Integer. Done means enumeration handles the 16-bit case and reports the device’s sample format as expected.

由索引模型根据 Issue 内容生成。

描述

host - coreaudio platform - macos

I'm getting the following errors when enumerating devices on OSX. Both failure cases are 2 ch outputs set for 16-bit Integer, as viewed via the Mac Audio MIDI Setup app. If I set one of the erring output devices to 24-bit Integer, the error is no longer reported for that output.

The USB audio CODEC device is a MXL ProCon Series 1 AC-404USB PZM mic.

Also I would expect the sample format to be preserved, instead of being promoted to a F32.

Supported hosts:
  [CoreAudio]
Available hosts:
  [CoreAudio]
CoreAudio
2021-01-04 10:29:18.149907-0800 assistant[55109:6076096] [plugin] AddInstanceForFactory: No factory registered for id <CFUUID 0x7fe25e707590> F8BB1C28-BAE8-11D6-9C31-00039315CD46
2021-01-04 10:29:18.195276-0800 assistant[55109:6076096]  HALC_ShellDriverPlugIn::Open: Can't get a pointer to the Open routine
2021-01-04 10:29:18.200471-0800 assistant[55109:6076096]  HALC_ShellObject::HasProperty: initial inner method call failed, Error: 560947818 (!obj)
  Default Input Device:
    Some("USB audio CODEC")
  Default Output Device:
    Some("MacBook Pro Speakers")
  Devices: 
  1. "LG HDR DQHD"
    Error getting supported output configs: BackendSpecific { err: BackendSpecificError { description: "AudioUnit(InvalidPropertyValue)" } }
  2. "USB audio CODEC"
    Error getting supported output configs: BackendSpecific { err: BackendSpecificError { description: "AudioUnit(InvalidPropertyValue)" } }
  3. "USB audio CODEC"
    Default input stream config:
      SupportedStreamConfig { channels: 1, sample_rate: SampleRate(16000), buffer_size: Range { min: 5, max: 3072 }, sample_format: F32 }
    All supported input stream configs:
      3.1. SupportedStreamConfigRange { channels: 1, min_sample_rate: SampleRate(8000), max_sample_rate: SampleRate(8000), buffer_size: Range { min: 5, max: 3072 }, sample_format: F32 }
      3.2. SupportedStreamConfigRange { channels: 1, min_sample_rate: SampleRate(11025), max_sample_rate: SampleRate(11025), buffer_size: Range { min: 5, max: 3072 }, sample_format: F32 }
      3.3. SupportedStreamConfigRange { channels: 1, min_sample_rate: SampleRate(16000), max_sample_rate: SampleRate(16000), buffer_size: Range { min: 5, max: 3072 }, sample_format: F32 }
      3.4. SupportedStreamConfigRange { channels: 1, min_sample_rate: SampleRate(22050), max_sample_rate: SampleRate(22050), buffer_size: Range { min: 5, max: 3072 }, sample_format: F32 }
      3.5. SupportedStreamConfigRange { channels: 1, min_sample_rate: SampleRate(32000), max_sample_rate: SampleRate(32000), buffer_size: Range { min: 5, max: 3072 }, sample_format: F32 }
      3.6. SupportedStreamConfigRange { channels: 1, min_sample_rate: SampleRate(44100), max_sample_rate: SampleRate(44100), buffer_size: Range { min: 5, max: 3072 }, sample_format: F32 }
      3.7. SupportedStreamConfigRange { channels: 1, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), buffer_size: Range { min: 5, max: 3072 }, sample_format: F32 }
2021-01-04 10:29:18.260273-0800 assistant[55109:6076096]  HALC_ShellObject::HasProperty: initial inner method call failed, Error: 560947818 (!obj)
2021-01-04 10:29:18.275941-0800 assistant[55109:6076096]  HALC_ShellObject::HasProperty: initial inner method call failed, Error: 560947818 (!obj)
2021-01-04 10:29:18.283476-0800 assistant[55109:6076096]  HALC_ShellObject::HasProperty: initial inner method call failed, Error: 560947818 (!obj)
2021-01-04 10:29:18.283695-0800 assistant[55109:6076096]  HALC_ShellObject::HasProperty: initial inner method call failed, Error: 560947818 (!obj)
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  • 阅读贡献指南

从这里开始

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  2. 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
  3. Fork 仓库，在一个分支上完成修改。
  4. 提交 Pull Request，并在描述里引用这个 Issue 编号。

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