Basic end-to-end audio testing prototype
While for some hardware ports it's hard to test whether a port really gets a proper signal etc, we feel for audio this might be
relatively straight forward: we could connect a cable from jack out to jack in in the lab and then have a testcase that plays something using aplay and checks that he gets proper input/signal on the jack in.
This could be done on alsa level and later pa level (for ubuntu).
The thought here would be to programmatically detect silence via hardwired loopback, then a test tone at a specific frequency(s), then silence again, all in a scriptable command line driven tool.
Initial release will be for a command line tool for both Android and Ubuntu. The application will need to use the alsa-lib for Ubuntu and tinyalsa for Android.
The code available for 11.12 release in -> http://
Blueprint information
- Status:
- Complete
- Approver:
- Kurt Taylor
- Priority:
- Medium
- Drafter:
- Kurt Taylor
- Direction:
- Approved
- Assignee:
- Kurt Taylor
- Definition:
- Approved
- Series goal:
- Accepted for trunk
- Implementation:
-
Implemented
- Milestone target:
-
2011.12
- Started by
- Kurt Taylor
- Completed by
- Kurt Taylor
Related branches
Related bugs
Sprints
Whiteboard
Meta:
Roadmap id: LINUX2011-
Headline: Unattended test application for testing the end to end audio stack for Ubuntu.
Acceptance Criteria: Run the test application on intel/ Ubuntu image, verify successful test results for working and non-working test cases.
Work Items
Work items:
Verify needed functionality and library compatibility across Ubuntu: DONE
Create basic application that will open and read a sample from PCM : DONE
Add frequency analysis from available library: DONE
Test basic application with speakertest playing a sine wave: DONE
Integrate playing a sine wave: DONE
Create driver script for app: DONE
Add functionality to allow passing different card/device passing: DONE
Verify intended functionality on Ubuntu: DONE
Enumerate test cases for positive and negative results report correctly: DONE
