diff options
| author | J M Rossy <[email protected]> | 2015-07-29 15:40:09 -0700 |
|---|---|---|
| committer | J M Rossy <[email protected]> | 2015-07-29 16:34:40 -0700 |
| commit | 5d61a4a79a1e96dc5d9af1e5e712c84507307544 (patch) | |
| tree | 49ed270893578cd18758b74ffcca16dc7ab948d6 /avstream/avssamp/capture.cpp | |
| parent | 5d41613e26e147d2300c786bb2b34cb4b4067a25 (diff) | |
Samples update for public Windows 10 release
Fix #2 Enabling WPP Recorder in Sensors Samples causes errors
Fix #4 Add back fixed KMDOD sample
Add new BarcodeScanner sample in pos folder
Add new MagneticStripeReader sample in pos folder
Add new SynpaticsTouch sample in input folder
Add new Power Engine Plugin sample in pofx folder
Add new DeviceMft sample in avstream folder
Add new AvsCamera sample in root
Add new SimBatt sample in root
Add other pre-existing samples not yet released for Win10
Diffstat (limited to 'avstream/avssamp/capture.cpp')
| -rw-r--r-- | avstream/avssamp/capture.cpp | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/avstream/avssamp/capture.cpp b/avstream/avssamp/capture.cpp new file mode 100644 index 00000000..019b5ad7 --- /dev/null +++ b/avstream/avssamp/capture.cpp @@ -0,0 +1,249 @@ +/************************************************************************** + + AVStream Filter-Centric Sample + + Copyright (c) 1999 - 2001, Microsoft Corporation + + File: + + capture.cpp + + Abstract: + + This file contains the capture pin implementation for all capture + pins on the sample filter. + + History: + + created 5/31/01 + +**************************************************************************/ + +#include "avssamp.h" + +/************************************************************************** + + PAGED CODE + +**************************************************************************/ + +#ifdef ALLOC_PRAGMA +#pragma code_seg("PAGE") +#endif // ALLOC_PRAGMA + + +CCapturePin:: +CCapturePin ( + IN PKSPIN Pin + ) : + m_Pin (Pin), + m_State (KSSTATE_STOP) + +/*++ + +Routine Description: + + Construct a new capture pin. Find out the filter associated with this + pin and stash a pointer to our parent filter. + +Arguments: + + Pin - + The AVStream pin object being created. + +Return Value: + + None + +--*/ + +{ + + PAGED_CODE(); + + PKSFILTER ParentFilter = KsPinGetParentFilter (Pin); + + m_ParentFilter = reinterpret_cast <CCaptureFilter *> ( + ParentFilter -> Context + ); + +} + +/*************************************************/ + + +NTSTATUS +CCapturePin:: +SetState ( + IN KSSTATE ToState, + IN KSSTATE FromState + ) + +/*++ + +Routine Description: + + Called when the pin is transitioning state. This is a bridge from + DispatchSetState in the context of the capture pin. The function itself + performs basic clock handling (things that all the derived pins would use) + and then calls the appropriate method in the derived class. + +Arguments: + + FromState - + The state the pin is transitioning away from + + ToState - + The state the pin is transitioning towards + +Return Value: + + Success / Failure of state transition. + +--*/ + +{ + + PAGED_CODE(); + + NTSTATUS Status = STATUS_SUCCESS; + + switch (ToState) { + + case KSSTATE_STOP: + + // + // Reset the dropped frame counter. + // + m_DroppedFrames = 0; + m_FrameNumber = 0; + + // + // On a transition to stop, the clock will be released. + // + if (m_Clock) { + m_Clock -> Release (); + m_Clock = NULL; + } + + Status = Stop (FromState); + break; + + case KSSTATE_ACQUIRE: + + // + // On a transition to acqiure (from stop), the pin queries for + // its assigned clock. This can be done either here or at the + // transition to pause. + // + if (FromState == KSSTATE_STOP) { + + Status = KsPinGetReferenceClockInterface ( + m_Pin, + &m_Clock + ); + + if (!NT_SUCCESS (Status)) { + m_Clock = NULL; + } + + } + + Status = Acquire (FromState); + break; + + case KSSTATE_PAUSE: + + Status = Pause (FromState); + break; + + case KSSTATE_RUN: + + Status = Run (FromState); + break; + + } + + if (NT_SUCCESS (Status)) { + m_State = ToState; + } + + return Status; + +} + +/************************************************************************** + + LOCKED CODE + +**************************************************************************/ + +#ifdef ALLOC_PRAGMA +#pragma code_seg() +#endif // ALLOC_PRAGMA + + +ULONG +CCapturePin:: +QueryFrameDrop ( + ) + +/*++ + +Routine Description: + + Return the number of frames which have been dropped on this pin. + +Arguments: + + None + +Return Value: + + The number of frames which have been dropped on this pin. + +--*/ + +{ + + return m_DroppedFrames; + +} + +/*************************************************/ + + +void +CCapturePin:: +NotifyDrops ( + IN ULONG VidDrop, + IN ULONG AudDrop + ) + +/*++ + +Routine Description: + + Stash the number of dropped frames on each pin in this pin to allow + this data to be incorporated into any synthesis. + +Arguments: + + VidDrop - + Number of video frames that have been dropped + + AudDrop - + Number of audio frames that have been dropped + +Return Value: + + None + +--*/ + +{ + + m_NotifyVidDrop = VidDrop; + m_NotifyAudDrop = AudDrop; + +} |
