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Diffstat (limited to 'AVStream/avssamp/capture.cpp')
| -rw-r--r-- | AVStream/avssamp/capture.cpp | 249 |
1 files changed, 0 insertions, 249 deletions
diff --git a/AVStream/avssamp/capture.cpp b/AVStream/avssamp/capture.cpp deleted file mode 100644 index 019b5ad7..00000000 --- a/AVStream/avssamp/capture.cpp +++ /dev/null @@ -1,249 +0,0 @@ -/************************************************************************** - - 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; - -} |