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