X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=decoders%2Fi2s%2Fpd.py;h=91801b4e98f9c0c6a62dcb8b92852907513f6092;hp=e14e5a4b4d369a079ce9e62c9fda4daf12caea6b;hb=10aeb8ea8b183394cebc0033f048f49f4262b57d;hpb=07e40f346ac1ed5ca98f636f2dd0ba5a7fe0011e
diff --git a/decoders/i2s/pd.py b/decoders/i2s/pd.py
index e14e5a4..91801b4 100644
--- a/decoders/i2s/pd.py
+++ b/decoders/i2s/pd.py
@@ -14,11 +14,11 @@
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
-## along with this program; if not, write to the Free Software
-## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+## along with this program; if not, see .
##
import sigrokdecode as srd
+import struct
'''
OUTPUT_PYTHON format:
@@ -60,6 +60,9 @@ class Decoder(srd.Decoder):
)
def __init__(self):
+ self.reset()
+
+ def reset(self):
self.samplerate = None
self.oldws = 1
self.bitcount = 0
@@ -113,21 +116,16 @@ class Decoder(srd.Decoder):
h += b'\x01\x00' # Audio format (0x0001 == PCM)
h += b'\x02\x00' # Number of channels (2)
h += b'\x80\x3e\x00\x00' # Samplerate (16000)
- h += b'\x00\x7d\x00\x00' # Byterate (32000)
+ h += b'\x00\xfa\x00\x00' # Byterate (64000)
h += b'\x04\x00' # Blockalign (4)
- h += b'\x10\x00' # Bits per sample (16)
+ h += b'\x20\x00' # Bits per sample (32)
# Data subchunk
h += b'data'
- h += b'\xff\xff\x00\x00' # Subchunk size (65535 bytes) TODO
+ h += b'\xff\xff\xff\xff' # Subchunk size (4G bytes) TODO
return h
def wav_sample(self, sample):
- # TODO: This currently assumes U32 samples, and converts to S16.
- s = sample >> 16
- if s >= 0x8000:
- s -= 0x10000
- lo, hi = s & 0xff, (s >> 8) & 0xff
- return bytes([lo, hi])
+ return struct.pack('