2 * Filter Seeking and Control Interfaces
4 * Copyright 2003 Robert Shearman
5 * Copyright 2010 Aric Stewart, CodeWeavers
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 /* FIXME: critical sections */
26 #include "wine/strmbase.h"
29 #include "wine/debug.h"
33 WINE_DEFAULT_DEBUG_CHANNEL(strmbase);
35 static inline SourceSeeking *impl_from_IMediaSeeking(IMediaSeeking *iface)
37 return CONTAINING_RECORD(iface, SourceSeeking, IMediaSeeking_iface);
40 HRESULT SourceSeeking_Init(SourceSeeking *pSeeking, const IMediaSeekingVtbl *Vtbl, SourceSeeking_ChangeStop fnChangeStop, SourceSeeking_ChangeStart fnChangeStart, SourceSeeking_ChangeRate fnChangeRate, PCRITICAL_SECTION crit_sect)
42 assert(fnChangeStop && fnChangeStart && fnChangeRate);
44 pSeeking->IMediaSeeking_iface.lpVtbl = Vtbl;
45 pSeeking->refCount = 1;
46 pSeeking->fnChangeRate = fnChangeRate;
47 pSeeking->fnChangeStop = fnChangeStop;
48 pSeeking->fnChangeStart = fnChangeStart;
49 pSeeking->dwCapabilities = AM_SEEKING_CanSeekForwards |
50 AM_SEEKING_CanSeekBackwards |
51 AM_SEEKING_CanSeekAbsolute |
52 AM_SEEKING_CanGetStopPos |
53 AM_SEEKING_CanGetDuration;
54 pSeeking->llCurrent = 0;
55 pSeeking->llStop = ((ULONGLONG)0x80000000) << 32;
56 pSeeking->llDuration = pSeeking->llStop;
57 pSeeking->dRate = 1.0;
58 pSeeking->timeformat = TIME_FORMAT_MEDIA_TIME;
59 pSeeking->crst = crit_sect;
63 HRESULT WINAPI SourceSeekingImpl_GetCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
65 SourceSeeking *This = impl_from_IMediaSeeking(iface);
67 TRACE("(%p)\n", pCapabilities);
69 *pCapabilities = This->dwCapabilities;
74 HRESULT WINAPI SourceSeekingImpl_CheckCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
76 SourceSeeking *This = impl_from_IMediaSeeking(iface);
80 TRACE("(%p)\n", pCapabilities);
85 dwCommonCaps = *pCapabilities & This->dwCapabilities;
90 hr = (*pCapabilities == dwCommonCaps) ? S_OK : S_FALSE;
91 *pCapabilities = dwCommonCaps;
95 HRESULT WINAPI SourceSeekingImpl_IsFormatSupported(IMediaSeeking * iface, const GUID * pFormat)
97 TRACE("(%s)\n", debugstr_guid(pFormat));
99 return (IsEqualIID(pFormat, &TIME_FORMAT_MEDIA_TIME) ? S_OK : S_FALSE);
102 HRESULT WINAPI SourceSeekingImpl_QueryPreferredFormat(IMediaSeeking * iface, GUID * pFormat)
104 TRACE("(%s)\n", debugstr_guid(pFormat));
106 *pFormat = TIME_FORMAT_MEDIA_TIME;
110 HRESULT WINAPI SourceSeekingImpl_GetTimeFormat(IMediaSeeking * iface, GUID * pFormat)
112 SourceSeeking *This = impl_from_IMediaSeeking(iface);
113 TRACE("(%s)\n", debugstr_guid(pFormat));
115 EnterCriticalSection(This->crst);
116 *pFormat = This->timeformat;
117 LeaveCriticalSection(This->crst);
122 HRESULT WINAPI SourceSeekingImpl_IsUsingTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
124 SourceSeeking *This = impl_from_IMediaSeeking(iface);
127 TRACE("(%s)\n", debugstr_guid(pFormat));
129 EnterCriticalSection(This->crst);
130 if (!IsEqualIID(pFormat, &This->timeformat))
132 LeaveCriticalSection(This->crst);
137 HRESULT WINAPI SourceSeekingImpl_SetTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
139 SourceSeeking *This = impl_from_IMediaSeeking(iface);
140 TRACE("%p %s\n", This, debugstr_guid(pFormat));
141 return (IsEqualIID(pFormat, &TIME_FORMAT_MEDIA_TIME) ? S_OK : E_INVALIDARG);
145 HRESULT WINAPI SourceSeekingImpl_GetDuration(IMediaSeeking * iface, LONGLONG * pDuration)
147 SourceSeeking *This = impl_from_IMediaSeeking(iface);
149 TRACE("(%p)\n", pDuration);
151 EnterCriticalSection(This->crst);
152 *pDuration = This->llDuration;
153 LeaveCriticalSection(This->crst);
158 HRESULT WINAPI SourceSeekingImpl_GetStopPosition(IMediaSeeking * iface, LONGLONG * pStop)
160 SourceSeeking *This = impl_from_IMediaSeeking(iface);
162 TRACE("(%p)\n", pStop);
164 EnterCriticalSection(This->crst);
165 *pStop = This->llStop;
166 LeaveCriticalSection(This->crst);
171 /* FIXME: Make use of the info the filter should expose */
172 HRESULT WINAPI SourceSeekingImpl_GetCurrentPosition(IMediaSeeking * iface, LONGLONG * pCurrent)
174 SourceSeeking *This = impl_from_IMediaSeeking(iface);
176 TRACE("(%p)\n", pCurrent);
178 EnterCriticalSection(This->crst);
179 *pCurrent = This->llCurrent;
180 LeaveCriticalSection(This->crst);
185 HRESULT WINAPI SourceSeekingImpl_ConvertTimeFormat(IMediaSeeking * iface, LONGLONG * pTarget, const GUID * pTargetFormat, LONGLONG Source, const GUID * pSourceFormat)
187 SourceSeeking *This = impl_from_IMediaSeeking(iface);
189 pTargetFormat = &This->timeformat;
191 pSourceFormat = &This->timeformat;
192 if (IsEqualIID(pTargetFormat, &TIME_FORMAT_MEDIA_TIME) && IsEqualIID(pSourceFormat, &TIME_FORMAT_MEDIA_TIME))
197 /* FIXME: clear pTarget? */
201 static inline LONGLONG Adjust(LONGLONG value, const LONGLONG * pModifier, DWORD dwFlags)
203 switch (dwFlags & AM_SEEKING_PositioningBitsMask)
205 case AM_SEEKING_NoPositioning:
207 case AM_SEEKING_AbsolutePositioning:
209 case AM_SEEKING_RelativePositioning:
210 case AM_SEEKING_IncrementalPositioning:
211 return value + *pModifier;
218 HRESULT WINAPI SourceSeekingImpl_SetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, DWORD dwCurrentFlags, LONGLONG * pStop, DWORD dwStopFlags)
220 SourceSeeking *This = impl_from_IMediaSeeking(iface);
221 BOOL bChangeCurrent = FALSE, bChangeStop = FALSE;
222 LONGLONG llNewCurrent, llNewStop;
224 TRACE("(%p, %x, %p, %x)\n", pCurrent, dwCurrentFlags, pStop, dwStopFlags);
225 EnterCriticalSection(This->crst);
227 llNewCurrent = Adjust(This->llCurrent, pCurrent, dwCurrentFlags);
228 llNewStop = Adjust(This->llStop, pStop, dwStopFlags);
231 bChangeCurrent = TRUE;
232 if (llNewStop != This->llStop)
235 TRACE("Old: %u, New: %u\n", (DWORD)(This->llCurrent/10000000), (DWORD)(llNewCurrent/10000000));
237 This->llCurrent = llNewCurrent;
238 This->llStop = llNewStop;
240 if (pCurrent && (dwCurrentFlags & AM_SEEKING_ReturnTime))
241 *pCurrent = llNewCurrent;
242 if (pStop && (dwStopFlags & AM_SEEKING_ReturnTime))
244 LeaveCriticalSection(This->crst);
247 This->fnChangeStart(iface);
249 This->fnChangeStop(iface);
254 HRESULT WINAPI SourceSeekingImpl_GetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, LONGLONG * pStop)
256 SourceSeeking *This = impl_from_IMediaSeeking(iface);
258 TRACE("(%p, %p)\n", pCurrent, pStop);
260 EnterCriticalSection(This->crst);
261 IMediaSeeking_GetCurrentPosition(iface, pCurrent);
262 IMediaSeeking_GetStopPosition(iface, pStop);
263 LeaveCriticalSection(This->crst);
268 HRESULT WINAPI SourceSeekingImpl_GetAvailable(IMediaSeeking * iface, LONGLONG * pEarliest, LONGLONG * pLatest)
270 SourceSeeking *This = impl_from_IMediaSeeking(iface);
272 TRACE("(%p, %p)\n", pEarliest, pLatest);
274 EnterCriticalSection(This->crst);
276 *pLatest = This->llDuration;
277 LeaveCriticalSection(This->crst);
282 HRESULT WINAPI SourceSeekingImpl_SetRate(IMediaSeeking * iface, double dRate)
284 SourceSeeking *This = impl_from_IMediaSeeking(iface);
285 BOOL bChangeRate = (dRate != This->dRate);
288 TRACE("(%e)\n", dRate);
290 if (dRate > 100 || dRate < .001)
292 FIXME("Excessive rate %e, ignoring\n", dRate);
293 return VFW_E_UNSUPPORTED_AUDIO;
296 EnterCriticalSection(This->crst);
299 hr = This->fnChangeRate(iface);
300 LeaveCriticalSection(This->crst);
305 HRESULT WINAPI SourceSeekingImpl_GetRate(IMediaSeeking * iface, double * dRate)
307 SourceSeeking *This = impl_from_IMediaSeeking(iface);
309 TRACE("(%p)\n", dRate);
311 EnterCriticalSection(This->crst);
313 *dRate = This->dRate;
314 LeaveCriticalSection(This->crst);
319 HRESULT WINAPI SourceSeekingImpl_GetPreroll(IMediaSeeking * iface, LONGLONG * pPreroll)
321 TRACE("(%p)\n", pPreroll);