Re: [PATCH BAT V1 0/7] BAT: Add Basic Audio Tester command line tool

[Liam Girdwood <liam.r.girdwood@intel.com>]

On Sat, 2015-09-19 at 18:40 +0200, Takashi Iwai wrote:
> Hi,
> 
> I'm currently traveling on vacation and have little time to check
> through the patchset and join the discussion.  I'll take a closer look
> in the next week.
> 

No worries. This gives us time to merge in Caleb's sine wave generator
patch and we can then send a V2 series.

Thanks

Liam

> 
> thanks,
> 
> Takashi
> 
> 
> On Tue, 15 Sep 2015 09:00:16 +0200,
> <han.lu@intel.com> wrote:
> > 
> > From: "Lu, Han" <han.lu@intel.com>
> > 
> > BAT (Basic Audio Tester) is a simple command line utility intended
> > to automate audio driver and sound server QA testing with no human
> > interaction.
> > 
> > BAT works by playing an audio stream and capturing the same stream
> > in either a digital or analog loopback. It then compares the captured
> > stream to the original to determine if the testcase passes or fails.
> > 
> > The main idea of frequency detecting is:
> > The analysis function reads data from wav file, run fft against the data
> > to get magnitude of frequency vectors, and then calculates the average
> > value and standard deviation of frequency vectors. After that, we define
> > a threshold:
> >     threshold = 3 * standard_deviation + average_value
> > Frequencies with amplitude larger than threshold will be recognized as
> > a peak, and the frequency with largest peak value will be recognized as
> > a detected frequency.
> > BAT then compares the detected frequency to target frequency, to decide
> > if the detecting passes or fails.
> > 
> > BAT supports 4 working modes:
> >   1. single line playback;
> >   2. single line capture and analysis;
> >   3. playback and capture in loop, and analyze captured data;
> >   4. local analyze without actual playback or capture.
> > BAT will check devices input by user to decide which mode to use.
> > BAT will create threads for playback and record, and will run spectrum
> > analysis for mode 2, 3 or 4.
> > 
> > Lu, Han (7):
> >   BAT: Add initial functions
> >   BAT: Add common definitions and functions
> >   BAT: Add playback and record functions
> >   BAT: Add signal generator
> >   BAT: Add converting functions
> >   BAT: Add spectrum analysis functions
> >   BAT: Add Makefile and configures
> > 
> >  Makefile.am     |   3 +
> >  bat/Makefile.am |  14 ++
> >  bat/alsa.c      | 618 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> >  bat/alsa.h      |  20 ++
> >  bat/analyze.c   | 314 ++++++++++++++++++++++++++++
> >  bat/analyze.h   |  16 ++
> >  bat/bat.c       | 608 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
> >  bat/common.c    | 198 ++++++++++++++++++
> >  bat/common.h    | 169 ++++++++++++++++
> >  bat/convert.c   | 113 +++++++++++
> >  bat/convert.h   |  23 +++
> >  bat/signal.c    |  88 ++++++++
> >  configure.ac    |  19 +-
> >  13 files changed, 2202 insertions(+), 1 deletion(-)
> >  create mode 100644 bat/Makefile.am
> >  create mode 100644 bat/alsa.c
> >  create mode 100644 bat/alsa.h
> >  create mode 100644 bat/analyze.c
> >  create mode 100644 bat/analyze.h
> >  create mode 100644 bat/bat.c
> >  create mode 100644 bat/common.c
> >  create mode 100644 bat/common.h
> >  create mode 100644 bat/convert.c
> >  create mode 100644 bat/convert.h
> >  create mode 100644 bat/signal.c
> > 
> > -- 
> > 1.9.1
> > 
> > 


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