dlls/quartz/control.c

   1 /*
   2  * Filter Seeking and Control Interfaces
   3  *
   4  * Copyright 2003 Robert Shearman
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20 /* FIXME: critical sections */
  21
  22 #include "quartz_private.h"
  23 #include "control_private.h"
  24
  25 #include "uuids.h"
  26 #include "wine/debug.h"
  27
  28 #include <assert.h>
  29
  30 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
  31
  32
  33 typedef HRESULT (*SeekFunc)( IMediaSeeking *to, LPVOID arg );
  34
  35 static HRESULT ForwardCmdSeek( IBaseFilter* from, SeekFunc fnSeek, LPVOID arg )
  36 {
  37     HRESULT hr = S_OK;
  38     HRESULT hr_return = S_OK;
  39     IEnumPins *enumpins = NULL;
  40     BOOL foundend = FALSE, allnotimpl = TRUE;
  41
  42     hr = IBaseFilter_EnumPins( from, &enumpins );
  43     if (FAILED(hr))
  44         goto out;
  45
  46     hr = IEnumPins_Reset( enumpins );
  47     while (hr == S_OK) {
  48         IPin *pin = NULL;
  49         hr = IEnumPins_Next( enumpins, 1, &pin, NULL );
  50         if (hr == VFW_E_ENUM_OUT_OF_SYNC)
  51         {
  52             hr = IEnumPins_Reset( enumpins );
  53             continue;
  54         }
  55         if (pin)
  56         {
  57             PIN_DIRECTION dir;
  58
  59             IPin_QueryDirection( pin, &dir );
  60             if (dir == PINDIR_INPUT)
  61             {
  62                 IPin *connected = NULL;
  63
  64                 IPin_ConnectedTo( pin, &connected );
  65                 if (connected)
  66                 {
  67                     HRESULT hr_local;
  68                     IMediaSeeking *seek = NULL;
  69
  70                     hr_local = IPin_QueryInterface( connected, &IID_IMediaSeeking, (void**)&seek );
  71                     if (!hr_local)
  72                     {
  73                         foundend = TRUE;
  74                         hr_local = fnSeek( seek , arg );
  75                         if (hr_local != E_NOTIMPL)
  76                             allnotimpl = FALSE;
  77
  78                         hr_return = updatehres( hr_return, hr_local );
  79                         IMediaSeeking_Release( seek );
  80                     }
  81                     IPin_Release(connected);
  82                 }
  83             }
  84             IPin_Release( pin );
  85         }
  86     } while (hr == S_OK);
  87     if (foundend && allnotimpl)
  88         hr = E_NOTIMPL;
  89     else
  90         hr = hr_return;
  91
  92 out:
  93     FIXME("Returning: %08x\n", hr);
  94     return hr;
  95 }
  96
  97
  98 HRESULT MediaSeekingImpl_Init(IBaseFilter *pUserData, CHANGEPROC fnChangeStop, CHANGEPROC fnChangeStart, CHANGEPROC fnChangeRate, MediaSeekingImpl * pSeeking, PCRITICAL_SECTION crit_sect)
  99 {
 100     assert(fnChangeStop && fnChangeStart && fnChangeRate);
 101
 102     pSeeking->refCount = 1;
 103     pSeeking->pUserData = pUserData;
 104     pSeeking->fnChangeRate = fnChangeRate;
 105     pSeeking->fnChangeStop = fnChangeStop;
 106     pSeeking->fnChangeStart = fnChangeStart;
 107     pSeeking->dwCapabilities = AM_SEEKING_CanSeekForwards |
 108         AM_SEEKING_CanSeekBackwards |
 109         AM_SEEKING_CanSeekAbsolute |
 110         AM_SEEKING_CanGetStopPos |
 111         AM_SEEKING_CanGetDuration;
 112     pSeeking->llStart = 0;
 113     pSeeking->llStop = ((ULONGLONG)0x80000000) << 32;
 114     pSeeking->llDuration = pSeeking->llStop - pSeeking->llStart;
 115     pSeeking->dRate = 1.0;
 116     pSeeking->timeformat = TIME_FORMAT_MEDIA_TIME;
 117     pSeeking->crst = crit_sect;
 118
 119     return S_OK;
 120 }
 121
 122
 123 HRESULT WINAPI MediaSeekingImpl_GetCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
 124 {
 125     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 126
 127     TRACE("(%p)\n", pCapabilities);
 128
 129     *pCapabilities = This->dwCapabilities;
 130
 131     return S_OK;
 132 }
 133
 134 static HRESULT fwd_checkcaps(IMediaSeeking *iface, LPVOID pcaps)
 135 {
 136     DWORD *caps = pcaps;
 137     return IMediaSeeking_CheckCapabilities(iface, caps);
 138 }
 139
 140 HRESULT WINAPI MediaSeekingImpl_CheckCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
 141 {
 142     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 143     HRESULT hr;
 144     DWORD dwCommonCaps;
 145
 146     TRACE("(%p)\n", pCapabilities);
 147
 148     if (!pCapabilities)
 149         return E_POINTER;
 150
 151     hr = ForwardCmdSeek(This->pUserData, fwd_checkcaps, pCapabilities);
 152     if (FAILED(hr) && hr != E_NOTIMPL)
 153         return hr;
 154
 155     dwCommonCaps = *pCapabilities & This->dwCapabilities;
 156
 157     if (!dwCommonCaps)
 158         hr = E_FAIL;
 159     else
 160         hr = (*pCapabilities == dwCommonCaps) ?  S_OK : S_FALSE;
 161     *pCapabilities = dwCommonCaps;
 162
 163     return hr;
 164 }
 165
 166 HRESULT WINAPI MediaSeekingImpl_IsFormatSupported(IMediaSeeking * iface, const GUID * pFormat)
 167 {
 168     TRACE("(%s)\n", qzdebugstr_guid(pFormat));
 169
 170     return (IsEqualIID(pFormat, &TIME_FORMAT_MEDIA_TIME) ? S_OK : S_FALSE);
 171 }
 172
 173 HRESULT WINAPI MediaSeekingImpl_QueryPreferredFormat(IMediaSeeking * iface, GUID * pFormat)
 174 {
 175     TRACE("(%s)\n", qzdebugstr_guid(pFormat));
 176
 177     *pFormat = TIME_FORMAT_MEDIA_TIME;
 178     return S_OK;
 179 }
 180
 181 HRESULT WINAPI MediaSeekingImpl_GetTimeFormat(IMediaSeeking * iface, GUID * pFormat)
 182 {
 183     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 184     TRACE("(%s)\n", qzdebugstr_guid(pFormat));
 185
 186     EnterCriticalSection(This->crst);
 187     *pFormat = This->timeformat;
 188     LeaveCriticalSection(This->crst);
 189
 190     return S_OK;
 191 }
 192
 193 HRESULT WINAPI MediaSeekingImpl_IsUsingTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
 194 {
 195     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 196     HRESULT hr = S_OK;
 197
 198     TRACE("(%s)\n", qzdebugstr_guid(pFormat));
 199
 200     EnterCriticalSection(This->crst);
 201     if (!IsEqualIID(pFormat, &This->timeformat))
 202         hr = S_FALSE;
 203     LeaveCriticalSection(This->crst);
 204
 205     return hr;
 206 }
 207
 208
 209 static HRESULT fwd_settimeformat(IMediaSeeking *iface, LPVOID pformat)
 210 {
 211     const GUID *format = pformat;
 212     return IMediaSeeking_SetTimeFormat(iface, format);
 213 }
 214
 215 HRESULT WINAPI MediaSeekingImpl_SetTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
 216 {
 217     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 218     TRACE("(%s)\n", qzdebugstr_guid(pFormat));
 219
 220     ForwardCmdSeek(This->pUserData, fwd_settimeformat, (LPVOID)pFormat);
 221
 222     return (IsEqualIID(pFormat, &TIME_FORMAT_MEDIA_TIME) ? S_OK : S_FALSE);
 223 }
 224
 225
 226 static HRESULT fwd_getduration(IMediaSeeking *iface, LPVOID pdur)
 227 {
 228     LONGLONG *duration = pdur;
 229     LONGLONG mydur = *duration;
 230     HRESULT hr;
 231
 232     hr = IMediaSeeking_GetDuration(iface, &mydur);
 233     if (FAILED(hr))
 234         return hr;
 235
 236     if ((mydur < *duration) || (*duration < 0 && mydur > 0))
 237         *duration = mydur;
 238     return hr;
 239 }
 240
 241 HRESULT WINAPI MediaSeekingImpl_GetDuration(IMediaSeeking * iface, LONGLONG * pDuration)
 242 {
 243     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 244
 245     TRACE("(%p)\n", pDuration);
 246
 247     EnterCriticalSection(This->crst);
 248     *pDuration = This->llDuration;
 249     ForwardCmdSeek(This->pUserData, fwd_getduration, pDuration);
 250     LeaveCriticalSection(This->crst);
 251
 252     return S_OK;
 253 }
 254
 255
 256 static HRESULT fwd_getstopposition(IMediaSeeking *iface, LPVOID pdur)
 257 {
 258     LONGLONG *duration = pdur;
 259     LONGLONG mydur = *duration;
 260     HRESULT hr;
 261
 262     hr = IMediaSeeking_GetStopPosition(iface, &mydur);
 263     if (FAILED(hr))
 264         return hr;
 265
 266     if ((mydur < *duration) || (*duration < 0 && mydur > 0))
 267         *duration = mydur;
 268     return hr;
 269 }
 270
 271 HRESULT WINAPI MediaSeekingImpl_GetStopPosition(IMediaSeeking * iface, LONGLONG * pStop)
 272 {
 273     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 274
 275     TRACE("(%p)\n", pStop);
 276
 277     EnterCriticalSection(This->crst);
 278     *pStop = This->llStop;
 279     ForwardCmdSeek(This->pUserData, fwd_getstopposition, pStop);
 280     LeaveCriticalSection(This->crst);
 281
 282     return S_OK;
 283 }
 284
 285
 286 static HRESULT fwd_getcurposition(IMediaSeeking *iface, LPVOID pdur)
 287 {
 288     LONGLONG *duration = pdur;
 289     LONGLONG mydur = *duration;
 290     HRESULT hr;
 291
 292     hr = IMediaSeeking_GetCurrentPosition(iface, &mydur);
 293     if (FAILED(hr))
 294         return hr;
 295
 296     if ((mydur < *duration) || (*duration < 0 && mydur > 0))
 297         *duration = mydur;
 298     return hr;
 299 }
 300
 301 /* FIXME: Make use of the info the filter should expose */
 302 HRESULT WINAPI MediaSeekingImpl_GetCurrentPosition(IMediaSeeking * iface, LONGLONG * pCurrent)
 303 {
 304     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 305
 306     TRACE("(%p)\n", pCurrent);
 307
 308     EnterCriticalSection(This->crst);
 309     *pCurrent = This->llStart;
 310     ForwardCmdSeek(This->pUserData, fwd_getcurposition, pCurrent);
 311     LeaveCriticalSection(This->crst);
 312
 313     return S_OK;
 314 }
 315
 316 HRESULT WINAPI MediaSeekingImpl_ConvertTimeFormat(IMediaSeeking * iface, LONGLONG * pTarget, const GUID * pTargetFormat, LONGLONG Source, const GUID * pSourceFormat)
 317 {
 318     if (IsEqualIID(pTargetFormat, &TIME_FORMAT_MEDIA_TIME) && IsEqualIID(pSourceFormat, &TIME_FORMAT_MEDIA_TIME))
 319     {
 320         *pTarget = Source;
 321         return S_OK;
 322     }
 323     /* FIXME: clear pTarget? */
 324     return E_INVALIDARG;
 325 }
 326
 327 static inline LONGLONG Adjust(LONGLONG value, const LONGLONG * pModifier, DWORD dwFlags)
 328 {
 329     switch (dwFlags & AM_SEEKING_PositioningBitsMask)
 330     {
 331     case AM_SEEKING_NoPositioning:
 332         return value;
 333     case AM_SEEKING_AbsolutePositioning:
 334         return *pModifier;
 335     case AM_SEEKING_RelativePositioning:
 336     case AM_SEEKING_IncrementalPositioning:
 337         return value + *pModifier;
 338     default:
 339         assert(FALSE);
 340         return 0;
 341     }
 342 }
 343
 344 HRESULT WINAPI MediaSeekingImpl_SetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, DWORD dwCurrentFlags, LONGLONG * pStop, DWORD dwStopFlags)
 345 {
 346     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 347     BOOL bChangeStart = FALSE, bChangeStop = FALSE;
 348     LONGLONG llNewStart, llNewStop;
 349
 350     TRACE("(%p, %x, %p, %x)\n", pCurrent, dwCurrentFlags, pStop, dwStopFlags);
 351
 352     EnterCriticalSection(This->crst);
 353
 354     llNewStart = Adjust(This->llStart, pCurrent, dwCurrentFlags);
 355     llNewStop = Adjust(This->llStop, pStop, dwStopFlags);
 356
 357     if (llNewStart != This->llStart)
 358         bChangeStart = TRUE;
 359     if (llNewStop != This->llStop)
 360         bChangeStop = TRUE;
 361
 362     This->llStart = llNewStart;
 363     This->llStop = llNewStop;
 364
 365     if (dwCurrentFlags & AM_SEEKING_ReturnTime)
 366         *pCurrent = llNewStart;
 367     if (dwStopFlags & AM_SEEKING_ReturnTime)
 368         *pStop = llNewStop;
 369
 370     if (bChangeStart)
 371         This->fnChangeStart(This->pUserData);
 372     if (bChangeStop)
 373         This->fnChangeStop(This->pUserData);
 374
 375     LeaveCriticalSection(This->crst);
 376
 377     return S_OK;
 378 }
 379
 380 HRESULT WINAPI MediaSeekingImpl_GetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, LONGLONG * pStop)
 381 {
 382     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 383
 384     TRACE("(%p, %p)\n", pCurrent, pStop);
 385
 386     EnterCriticalSection(This->crst);
 387     *pCurrent = This->llStart;
 388     *pStop = This->llStop;
 389     LeaveCriticalSection(This->crst);
 390
 391     return S_OK;
 392 }
 393
 394 HRESULT WINAPI MediaSeekingImpl_GetAvailable(IMediaSeeking * iface, LONGLONG * pEarliest, LONGLONG * pLatest)
 395 {
 396     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 397
 398     TRACE("(%p, %p)\n", pEarliest, pLatest);
 399
 400     EnterCriticalSection(This->crst);
 401     *pEarliest = 0;
 402     *pLatest = This->llDuration;
 403     LeaveCriticalSection(This->crst);
 404
 405     return S_OK;
 406 }
 407
 408 static HRESULT fwd_setrate(IMediaSeeking *iface, LPVOID prate)
 409 {
 410     double *rate = prate;
 411
 412     HRESULT hr;
 413
 414     hr = IMediaSeeking_SetRate(iface, *rate);
 415     if (FAILED(hr))
 416         return hr;
 417
 418     return hr;
 419 }
 420
 421 HRESULT WINAPI MediaSeekingImpl_SetRate(IMediaSeeking * iface, double dRate)
 422 {
 423     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 424     BOOL bChangeRate = (dRate != This->dRate);
 425     HRESULT hr = S_OK;
 426
 427     TRACE("(%e)\n", dRate);
 428
 429     if (dRate > 100 || dRate < .001)
 430     {
 431         FIXME("Excessive rate %e, ignoring\n", dRate);
 432         return VFW_E_UNSUPPORTED_AUDIO;
 433     }
 434
 435     EnterCriticalSection(This->crst);
 436     This->dRate = dRate;
 437     if (bChangeRate)
 438         hr = This->fnChangeRate(This->pUserData);
 439     ForwardCmdSeek(This->pUserData, fwd_setrate, &dRate);
 440     LeaveCriticalSection(This->crst);
 441
 442     return hr;
 443 }
 444
 445 HRESULT WINAPI MediaSeekingImpl_GetRate(IMediaSeeking * iface, double * dRate)
 446 {
 447     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 448
 449     TRACE("(%p)\n", dRate);
 450
 451     EnterCriticalSection(This->crst);
 452     /* Forward? */
 453     *dRate = This->dRate;
 454     LeaveCriticalSection(This->crst);
 455
 456     return S_OK;
 457 }
 458
 459 HRESULT WINAPI MediaSeekingImpl_GetPreroll(IMediaSeeking * iface, LONGLONG * pPreroll)
 460 {
 461     TRACE("(%p)\n", pPreroll);
 462
 463     *pPreroll = 0;
 464     return S_OK;
 465 }