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1. WS = 0, Left Channel; WS = 1, Right Channel
2. Data start and end at falling edge of SCK
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Only emit sound samplerate information when an input stream sample rate
was specified. Cope with the absence of a sample rate for the input
stream. Decoding is still possible, it's just that no timing information
is available.
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Move initialization code of protocol decoders from the constructor to a
new reset() helper method. The libsigrokdecode backend could run this
method several times to clear the decoder's internal state, before new
data from another acquisition gets fed to decode() calls.
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Using the format string 'I' with the default (implied) prefix '@'
results in both word size and endianness being platform dependent.
In this case standard size (32 bits) and little endianness is
required, so the prefix '<' needs to be used.
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Remove the FSF postal address as it might change (it did in the past).
Reference the gnu.org website instead which is more stable.
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The previous **kwargs some PDs had is not actually ever used, so drop it.
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This is more consistent with annotation syntax and looks slightly
better in most cases.
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Use self.ss/self.es, or if there's a need to differentiate
them a bit more, use self.ss_<suffix>/self.es_<suffix> consistently.
Also, drop some unused variables.
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Anything else in the pd.py files doesn't have to be imported/exposed.
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Drop them from the libsigrokdecode repository.
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- No newlines at the end of files.
- No trailing ';' characters.
- Comparison with None: Use 'is None' or 'is not None'.
- Comparison with True/False: Use 'if cond:' or 'if not cond:'.
- Various minor whitespace fixes.
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Also, use the "if not self.samplerate" form, which catches both the case
where self.samplerate is None, as well as the case where it is 0.
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Older libsigrokdecode versions are no longer able to use the current
versions of the PDs (various changes in syntax etc).
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Variables of type 'struct srd_channel *' are consistently named 'pdch' to
make them easily distinguishable from libsigrok's 'struct sr_channel *'
variables that are consistently named 'ch'.
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Annotation entries also consist of a tuple, not a list.
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The output type is now called OUTPUT_PYTHON, adapt all PDs to that.
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The single comment re-stating the PD's name / description / purpose in
each pd.py file is not really needed, that info is available in the
Decoder class' attributes already.
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The functionality of the preliminary 'i2s_dump' PD is now available
in the proper 'i2s' PD, via the OUTPUT_BINARY mechanism that frontends
can use to dump decoded data (in various formats) to a file, or pipe it
into other applications, and so on.
Old sigrok-cli example usage:
$ sigrok-cli -i 2ch-16bit-16khz.sr \
-P i2s:sck=0:ws=1:sd=2,i2s_dump:filename=foo.wav
$ aplay foo.wav
New sigrok-cli example usage:
$ sigrok-cli -i 2ch-16bit-16khz.sr \
-P i2s:sck=0:ws=1:sd=2 -B i2s=wav > foo.wav
$ aplay foo.wav
New sigrok-cli example usage (piping into other applications):
$ sigrok-cli -i 2ch-16bit-16khz.sr \
-P i2s:sck=0:ws=1:sd=2 -B i2s=wav | aplay -
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This automatically figures out the files to install for each protocol
decoder, without involving autotools.
All python files (filenames ending in .py) are always installed. If a
protocol decoder requires installation of a non-python file, a small
file called 'config' can be created in that protocol decoder's
directory, with the following content:
# comments are ok
extra-install vendorlist.txt commands.txt
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This better reflects what it is: a python object generated and
processed by python code.
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This fixes (the remaining parts of) bug #162.
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This fixes parts of bug #162.
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The Python module name is determined by the directory name (e.g. dcf77),
the *.py file names in that directory don't matter and can be kept
consistent.
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Also, fix minor consistency issues, cosmetics, typos.
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