Our CP2114 device is UAC1 compliant and uses the in-box drivers. With this
device configured for Async mode, running the KS Position Test suite results in
failures of the 'Standard Streaming\Rendering Performance Tests\Duration &
Length' test, due to the driver streaming less bytes than expected. This
failure is evidently covered by a filter since the overall KS Position test
passes with filters enabled. Could this failure be caused by our device
firmware, or is it entirely due to the in-box drivers? (See test log below.)
Thanks,
Bob Giaraffa
Start Case: ID 16.26:1.2 : Standard Streaming\Rendering Performance
Tests\Duration & Length (standard streaming):[Fri Mar 18 16:50:13 2016]
Device Name = Pin # 0 on CP2114_20 [Render Pin]
PnP ID = USB\VID_10C4&PID_EAB0&MI_00\6&37767890&0&0000
======================================================
Using Pin # 0 on CP2114_20 as the render pin
Using QueryPerformanceCounter as the timing mechanism
Testing format:
Format.nChannels = 2
Format.nSamplesPerSec = 48000
wValidBitsPerSample = 16
Failed to query for basic support KSPROPERTY_AUDIOSIGNALPROCESSING_MODES:
Last error:1170
Wave Format used for instantiation:
wFormatTag = WAVE_FORMAT_PCM
nChannels = 2
nSamplesPerSec = 48000
nAvgBytesPerSec = 192000
nBlockAlign = 4
wBitsPerSample = 16
cbSize = 0
Successfully instantiated KSPIN_DATAFLOW_IN pin
KSPIN_DATAFLOW_IN pin is currently in state KSSTATE_STOP; want it to be in
state KSSTATE_PAUSE
Setting KSPIN_DATAFLOW_IN pin to state KSSTATE_ACQUIRE
Setting KSPIN_DATAFLOW_IN pin to state KSSTATE_PAUSE
KSPIN_DATAFLOW_IN pin is currently in state KSSTATE_PAUSE; want it to be in
state KSSTATE_RUN
Setting KSPIN_DATAFLOW_IN pin to state KSSTATE_RUN
FAIL: Driver streamed 383972 bytes instead of 384000.
Length:
Measured: 383972 bytes
Expected: 384000 bytes
Error: -28 bytes
Time reading before starting of wait preiod: 174.467 ms
Time reading at the end of wait preiod: 2176.962 ms
Duration:
Measured: 2002.495 ms
Expected: 2000.000 ms
Error: 2.495 ms (0.125 %)
PASS: The duration error for this format is no more than 3.000 %, and is
therefore acceptable
KSPIN_DATAFLOW_IN pin is currently in state KSSTATE_RUN; want it to be in
state KSSTATE_STOP
Setting KSPIN_DATAFLOW_IN pin to state KSSTATE_PAUSE
Setting KSPIN_DATAFLOW_IN pin to state KSSTATE_ACQUIRE
Setting KSPIN_DATAFLOW_IN pin to state KSSTATE_STOP
KSPIN_DATAFLOW_IN pin is currently in state KSSTATE_STOP; want it to be in
state KSSTATE_STOP
End Case: ID 16.26:1.2 : FAIL : Standard Streaming\Rendering Performance
Tests\Duration & Length (standard streaming) : [Fri Mar 18 16:50:21 2016]
