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- /*
- * Filter Seeking and Control Interfaces
- *
- * Copyright 2003 Robert Shearman
- * Copyright 2010 Aric Stewart, CodeWeavers
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
- */
- #include "strmbase_private.h"
- WINE_DEFAULT_DEBUG_CHANNEL(quartz);
- static inline SourceSeeking *impl_from_IMediaSeeking(IMediaSeeking *iface)
- {
- return CONTAINING_RECORD(iface, SourceSeeking, IMediaSeeking_iface);
- }
- HRESULT strmbase_seeking_init(SourceSeeking *pSeeking, const IMediaSeekingVtbl *Vtbl,
- SourceSeeking_ChangeStop fnChangeStop, SourceSeeking_ChangeStart fnChangeStart,
- SourceSeeking_ChangeRate fnChangeRate)
- {
- assert(fnChangeStop && fnChangeStart && fnChangeRate);
- pSeeking->IMediaSeeking_iface.lpVtbl = Vtbl;
- pSeeking->refCount = 1;
- pSeeking->fnChangeRate = fnChangeRate;
- pSeeking->fnChangeStop = fnChangeStop;
- pSeeking->fnChangeStart = fnChangeStart;
- pSeeking->dwCapabilities = AM_SEEKING_CanSeekForwards |
- AM_SEEKING_CanSeekBackwards |
- AM_SEEKING_CanSeekAbsolute |
- AM_SEEKING_CanGetStopPos |
- AM_SEEKING_CanGetDuration;
- pSeeking->llCurrent = 0;
- pSeeking->llStop = ((ULONGLONG)0x80000000) << 32;
- pSeeking->llDuration = pSeeking->llStop;
- pSeeking->dRate = 1.0;
- pSeeking->timeformat = TIME_FORMAT_MEDIA_TIME;
- InitializeCriticalSection(&pSeeking->cs);
- pSeeking->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": SourceSeeking.cs");
- return S_OK;
- }
- void strmbase_seeking_cleanup(SourceSeeking *seeking)
- {
- DeleteCriticalSection(&seeking->cs);
- }
- HRESULT WINAPI SourceSeekingImpl_GetCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
- {
- SourceSeeking *This = impl_from_IMediaSeeking(iface);
- TRACE("(%p)\n", pCapabilities);
- *pCapabilities = This->dwCapabilities;
- return S_OK;
- }
- HRESULT WINAPI SourceSeekingImpl_CheckCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
- {
- SourceSeeking *This = impl_from_IMediaSeeking(iface);
- HRESULT hr;
- DWORD dwCommonCaps;
- TRACE("(%p)\n", pCapabilities);
- if (!pCapabilities)
- return E_POINTER;
- dwCommonCaps = *pCapabilities & This->dwCapabilities;
- if (!dwCommonCaps)
- hr = E_FAIL;
- else
- hr = (*pCapabilities == dwCommonCaps) ? S_OK : S_FALSE;
- *pCapabilities = dwCommonCaps;
- return hr;
- }
- HRESULT WINAPI SourceSeekingImpl_IsFormatSupported(IMediaSeeking * iface, const GUID * pFormat)
- {
- TRACE("(%s)\n", debugstr_guid(pFormat));
- return (IsEqualIID(pFormat, &TIME_FORMAT_MEDIA_TIME) ? S_OK : S_FALSE);
- }
- HRESULT WINAPI SourceSeekingImpl_QueryPreferredFormat(IMediaSeeking * iface, GUID * pFormat)
- {
- TRACE("(%s)\n", debugstr_guid(pFormat));
- *pFormat = TIME_FORMAT_MEDIA_TIME;
- return S_OK;
- }
- HRESULT WINAPI SourceSeekingImpl_GetTimeFormat(IMediaSeeking * iface, GUID * pFormat)
- {
- SourceSeeking *This = impl_from_IMediaSeeking(iface);
- TRACE("(%s)\n", debugstr_guid(pFormat));
- EnterCriticalSection(&This->cs);
- *pFormat = This->timeformat;
- LeaveCriticalSection(&This->cs);
- return S_OK;
- }
- HRESULT WINAPI SourceSeekingImpl_IsUsingTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
- {
- SourceSeeking *This = impl_from_IMediaSeeking(iface);
- HRESULT hr = S_OK;
- TRACE("(%s)\n", debugstr_guid(pFormat));
- EnterCriticalSection(&This->cs);
- if (!IsEqualIID(pFormat, &This->timeformat))
- hr = S_FALSE;
- LeaveCriticalSection(&This->cs);
- return hr;
- }
- HRESULT WINAPI SourceSeekingImpl_SetTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
- {
- SourceSeeking *This = impl_from_IMediaSeeking(iface);
- TRACE("%p %s\n", This, debugstr_guid(pFormat));
- return (IsEqualIID(pFormat, &TIME_FORMAT_MEDIA_TIME) ? S_OK : E_INVALIDARG);
- }
- HRESULT WINAPI SourceSeekingImpl_GetDuration(IMediaSeeking * iface, LONGLONG * pDuration)
- {
- SourceSeeking *This = impl_from_IMediaSeeking(iface);
- TRACE("(%p)\n", pDuration);
- EnterCriticalSection(&This->cs);
- *pDuration = This->llDuration;
- LeaveCriticalSection(&This->cs);
- return S_OK;
- }
- HRESULT WINAPI SourceSeekingImpl_GetStopPosition(IMediaSeeking * iface, LONGLONG * pStop)
- {
- SourceSeeking *This = impl_from_IMediaSeeking(iface);
- TRACE("(%p)\n", pStop);
- EnterCriticalSection(&This->cs);
- *pStop = This->llStop;
- LeaveCriticalSection(&This->cs);
- return S_OK;
- }
- /* FIXME: Make use of the info the filter should expose */
- HRESULT WINAPI SourceSeekingImpl_GetCurrentPosition(IMediaSeeking * iface, LONGLONG * pCurrent)
- {
- SourceSeeking *This = impl_from_IMediaSeeking(iface);
- TRACE("(%p)\n", pCurrent);
- EnterCriticalSection(&This->cs);
- *pCurrent = This->llCurrent;
- LeaveCriticalSection(&This->cs);
- return S_OK;
- }
- HRESULT WINAPI SourceSeekingImpl_ConvertTimeFormat(IMediaSeeking * iface, LONGLONG * pTarget, const GUID * pTargetFormat, LONGLONG Source, const GUID * pSourceFormat)
- {
- SourceSeeking *This = impl_from_IMediaSeeking(iface);
- if (!pTargetFormat)
- pTargetFormat = &This->timeformat;
- if (!pSourceFormat)
- pSourceFormat = &This->timeformat;
- if (IsEqualIID(pTargetFormat, &TIME_FORMAT_MEDIA_TIME) && IsEqualIID(pSourceFormat, &TIME_FORMAT_MEDIA_TIME))
- {
- *pTarget = Source;
- return S_OK;
- }
- /* FIXME: clear pTarget? */
- return E_INVALIDARG;
- }
- static inline LONGLONG Adjust(LONGLONG value, const LONGLONG * pModifier, DWORD dwFlags)
- {
- switch (dwFlags & AM_SEEKING_PositioningBitsMask)
- {
- case AM_SEEKING_NoPositioning:
- return value;
- case AM_SEEKING_AbsolutePositioning:
- return *pModifier;
- case AM_SEEKING_RelativePositioning:
- case AM_SEEKING_IncrementalPositioning:
- return value + *pModifier;
- default:
- assert(FALSE);
- return 0;
- }
- }
- HRESULT WINAPI SourceSeekingImpl_SetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, DWORD dwCurrentFlags, LONGLONG * pStop, DWORD dwStopFlags)
- {
- SourceSeeking *This = impl_from_IMediaSeeking(iface);
- BOOL bChangeCurrent = FALSE, bChangeStop = FALSE;
- LONGLONG llNewCurrent, llNewStop;
- TRACE("iface %p, current %s, current_flags %#lx, stop %s, stop_flags %#lx.\n", iface,
- pCurrent ? debugstr_time(*pCurrent) : "<null>", dwCurrentFlags,
- pStop ? debugstr_time(*pStop): "<null>", dwStopFlags);
- EnterCriticalSection(&This->cs);
- llNewCurrent = Adjust(This->llCurrent, pCurrent, dwCurrentFlags);
- llNewStop = Adjust(This->llStop, pStop, dwStopFlags);
- if (pCurrent)
- bChangeCurrent = TRUE;
- if (llNewStop != This->llStop)
- bChangeStop = TRUE;
- TRACE("Seeking from %s to %s.\n", debugstr_time(This->llCurrent), debugstr_time(llNewCurrent));
- This->llCurrent = llNewCurrent;
- This->llStop = llNewStop;
- if (pCurrent && (dwCurrentFlags & AM_SEEKING_ReturnTime))
- *pCurrent = llNewCurrent;
- if (pStop && (dwStopFlags & AM_SEEKING_ReturnTime))
- *pStop = llNewStop;
- LeaveCriticalSection(&This->cs);
- if (bChangeCurrent)
- This->fnChangeStart(iface);
- if (bChangeStop)
- This->fnChangeStop(iface);
- return S_OK;
- }
- HRESULT WINAPI SourceSeekingImpl_GetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, LONGLONG * pStop)
- {
- SourceSeeking *This = impl_from_IMediaSeeking(iface);
- TRACE("(%p, %p)\n", pCurrent, pStop);
- EnterCriticalSection(&This->cs);
- IMediaSeeking_GetCurrentPosition(iface, pCurrent);
- IMediaSeeking_GetStopPosition(iface, pStop);
- LeaveCriticalSection(&This->cs);
- return S_OK;
- }
- HRESULT WINAPI SourceSeekingImpl_GetAvailable(IMediaSeeking * iface, LONGLONG * pEarliest, LONGLONG * pLatest)
- {
- SourceSeeking *This = impl_from_IMediaSeeking(iface);
- TRACE("(%p, %p)\n", pEarliest, pLatest);
- EnterCriticalSection(&This->cs);
- *pEarliest = 0;
- *pLatest = This->llDuration;
- LeaveCriticalSection(&This->cs);
- return S_OK;
- }
- HRESULT WINAPI SourceSeekingImpl_SetRate(IMediaSeeking * iface, double dRate)
- {
- SourceSeeking *This = impl_from_IMediaSeeking(iface);
- BOOL bChangeRate = (dRate != This->dRate);
- HRESULT hr = S_OK;
- TRACE("(%e)\n", dRate);
- if (dRate > 100 || dRate < .001)
- {
- FIXME("Excessive rate %e, ignoring\n", dRate);
- return VFW_E_UNSUPPORTED_AUDIO;
- }
- EnterCriticalSection(&This->cs);
- This->dRate = dRate;
- if (bChangeRate)
- hr = This->fnChangeRate(iface);
- LeaveCriticalSection(&This->cs);
- return hr;
- }
- HRESULT WINAPI SourceSeekingImpl_GetRate(IMediaSeeking * iface, double * dRate)
- {
- SourceSeeking *This = impl_from_IMediaSeeking(iface);
- TRACE("(%p)\n", dRate);
- EnterCriticalSection(&This->cs);
- /* Forward? */
- *dRate = This->dRate;
- LeaveCriticalSection(&This->cs);
- return S_OK;
- }
- HRESULT WINAPI SourceSeekingImpl_GetPreroll(IMediaSeeking * iface, LONGLONG * pPreroll)
- {
- TRACE("(%p)\n", pPreroll);
- *pPreroll = 0;
- return S_OK;
- }
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