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   1 /*
   2  * AVI Splitter Filter
   3  *
   4  * Copyright 2003 Robert Shearman
   5  * Copyright 2004-2005 Christian Costa
   6  * Copyright 2008 Maarten Lankhorst
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22 /* FIXME:
  23  * - Reference leaks, if they still exist
  24  * - Files without an index are not handled correctly yet.
  25  * - When stopping/starting, a sample is lost. This should be compensated by
  26  *   keeping track of previous index/position.
  27  * - Debugging channels are noisy at the moment, especially with thread
  28  *   related messages, however this is the only correct thing to do right now,
  29  *   since wine doesn't correctly handle all messages yet.
  30  */
  31
  32 #include "quartz_private.h"
  33 #include "control_private.h"
  34 #include "pin.h"
  35
  36 #include "uuids.h"
  37 #include "vfw.h"
  38 #include "aviriff.h"
  39 #include "vfwmsgs.h"
  40 #include "amvideo.h"
  41
  42 #include "wine/unicode.h"
  43 #include "wine/debug.h"
  44
  45 #include <math.h>
  46 #include <assert.h>
  47
  48 #include "parser.h"
  49
  50 #define TWOCCFromFOURCC(fcc) HIWORD(fcc)
  51
  52 /* four character codes used in AVI files */
  53 #define ckidINFO       mmioFOURCC('I','N','F','O')
  54 #define ckidREC        mmioFOURCC('R','E','C',' ')
  55
  56 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
  57
  58 typedef struct StreamData
  59 {
  60     DWORD dwSampleSize;
  61     FLOAT fSamplesPerSec;
  62     DWORD dwLength;
  63
  64     AVISTREAMHEADER streamheader;
  65     DWORD entries;
  66     AVISTDINDEX **stdindex;
  67     DWORD frames;
  68     DWORD seek;
  69
  70     /* Position, in index units */
  71     DWORD pos, pos_next, index, index_next;
  72
  73     /* Packet handling: a thread is created and waits on the packet event handle
  74      * On an event acquire the sample lock, addref the sample and set it to NULL,
  75      * then queue a new packet.
  76      */
  77     HANDLE thread, packet_queued;
  78     IMediaSample *sample;
  79
  80     /* Amount of preroll samples for this stream */
  81     DWORD preroll;
  82 } StreamData;
  83
  84 typedef struct AVISplitterImpl
  85 {
  86     ParserImpl Parser;
  87     RIFFCHUNK CurrentChunk;
  88     LONGLONG CurrentChunkOffset; /* in media time */
  89     LONGLONG EndOfFile;
  90     AVIMAINHEADER AviHeader;
  91     AVIEXTHEADER ExtHeader;
  92
  93     AVIOLDINDEX *oldindex;
  94     DWORD offset;
  95
  96     StreamData *streams;
  97 } AVISplitterImpl;
  98
  99 struct thread_args {
 100     AVISplitterImpl *This;
 101     DWORD stream;
 102 };
 103
 104 /* The threading stuff cries for an explanation
 105  *
 106  * PullPin starts processing and calls AVISplitter_first_request
 107  * AVISplitter_first_request creates a thread for each stream
 108  * A stream can be audio, video, subtitles or something undefined.
 109  *
 110  * AVISplitter_first_request loads a single packet to each but one stream,
 111  * and queues it for that last stream. This is to prevent WaitForNext to time
 112  * out badly.
 113  *
 114  * The processing loop is entered. It calls IAsyncReader_WaitForNext in the
 115  * PullPin. Every time it receives a packet, it will call AVISplitter_Sample
 116  * AVISplitter_Sample will signal the relevant thread that a new sample is
 117  * arrived, when that thread is ready it will read the packet and transmits
 118  * it downstream with AVISplitter_Receive
 119  *
 120  * Threads terminate upon receiving NULL as packet or when ANY error code
 121  * != S_OK occurs. This means that any error is fatal to processing.
 122  */
 123
 124 static HRESULT AVISplitter_SendEndOfFile(AVISplitterImpl *This, DWORD streamnumber)
 125 {
 126     IPin* ppin = NULL;
 127     HRESULT hr;
 128
 129     TRACE("End of file reached\n");
 130
 131     hr = IPin_ConnectedTo(This->Parser.ppPins[streamnumber+1], &ppin);
 132     if (SUCCEEDED(hr))
 133     {
 134         hr = IPin_EndOfStream(ppin);
 135         IPin_Release(ppin);
 136     }
 137     TRACE("--> %x\n", hr);
 138
 139     /* Force the pullpin thread to stop */
 140     return S_FALSE;
 141 }
 142
 143 /* Thread worker horse */
 144 static HRESULT AVISplitter_next_request(AVISplitterImpl *This, DWORD streamnumber)
 145 {
 146     StreamData *stream = This->streams + streamnumber;
 147     PullPin *pin = This->Parser.pInputPin;
 148     IMediaSample *sample = NULL;
 149     HRESULT hr;
 150
 151     TRACE("(%p, %u)->()\n", This, streamnumber);
 152
 153     hr = IMemAllocator_GetBuffer(pin->pAlloc, &sample, NULL, NULL, 0);
 154     if (hr != S_OK)
 155         ERR("... %08x?\n", hr);
 156
 157     if (SUCCEEDED(hr))
 158     {
 159         LONGLONG rtSampleStart;
 160         /* Add 4 for the next header, which should hopefully work */
 161         LONGLONG rtSampleStop;
 162
 163         stream->pos = stream->pos_next;
 164         stream->index = stream->index_next;
 165
 166         IMediaSample_SetDiscontinuity(sample, stream->seek);
 167         stream->seek = FALSE;
 168         if (stream->preroll)
 169         {
 170             --stream->preroll;
 171             IMediaSample_SetPreroll(sample, TRUE);
 172         }
 173         else
 174             IMediaSample_SetPreroll(sample, FALSE);
 175         IMediaSample_SetSyncPoint(sample, TRUE);
 176
 177         if (stream->stdindex)
 178         {
 179             AVISTDINDEX *index = stream->stdindex[stream->index];
 180             AVISTDINDEX_ENTRY *entry = &index->aIndex[stream->pos];
 181
 182             /* End of file */
 183             if (stream->index >= stream->entries)
 184             {
 185                 TRACE("END OF STREAM ON %u\n", streamnumber);
 186                 IMediaSample_Release(sample);
 187                 return S_FALSE;
 188             }
 189
 190             rtSampleStart = index->qwBaseOffset;
 191             rtSampleStart += entry->dwOffset;
 192             rtSampleStart = MEDIATIME_FROM_BYTES(rtSampleStart);
 193
 194             ++stream->pos_next;
 195             if (index->nEntriesInUse == stream->pos_next)
 196             {
 197                 stream->pos_next = 0;
 198                 ++stream->index_next;
 199             }
 200
 201             rtSampleStop = rtSampleStart + MEDIATIME_FROM_BYTES(entry->dwSize & ~(1 << 31));
 202
 203             TRACE("offset(%u) size(%u)\n", (DWORD)BYTES_FROM_MEDIATIME(rtSampleStart), (DWORD)BYTES_FROM_MEDIATIME(rtSampleStop - rtSampleStart));
 204         }
 205         else if (This->oldindex)
 206         {
 207             DWORD flags = This->oldindex->aIndex[stream->pos].dwFlags;
 208             DWORD size = This->oldindex->aIndex[stream->pos].dwSize;
 209
 210             /* End of file */
 211             if (stream->index)
 212             {
 213                 TRACE("END OF STREAM ON %u\n", streamnumber);
 214                 IMediaSample_Release(sample);
 215                 return S_FALSE;
 216             }
 217
 218             rtSampleStart = MEDIATIME_FROM_BYTES(This->offset);
 219             rtSampleStart += MEDIATIME_FROM_BYTES(This->oldindex->aIndex[stream->pos].dwOffset);
 220             rtSampleStop = rtSampleStart + MEDIATIME_FROM_BYTES(size);
 221             if (flags & AVIIF_MIDPART)
 222             {
 223                 FIXME("Only stand alone frames are currently handled correctly!\n");
 224             }
 225             if (flags & AVIIF_LIST)
 226             {
 227                 FIXME("Not sure if this is handled correctly\n");
 228                 rtSampleStart += MEDIATIME_FROM_BYTES(sizeof(RIFFLIST));
 229                 rtSampleStop += MEDIATIME_FROM_BYTES(sizeof(RIFFLIST));
 230             }
 231             else
 232             {
 233                 rtSampleStart += MEDIATIME_FROM_BYTES(sizeof(RIFFCHUNK));
 234                 rtSampleStop += MEDIATIME_FROM_BYTES(sizeof(RIFFCHUNK));
 235             }
 236
 237             /* Slow way of finding next index */
 238             do {
 239                 stream->pos_next++;
 240             } while (stream->pos_next * sizeof(This->oldindex->aIndex[0]) < This->oldindex->cb
 241                      && StreamFromFOURCC(This->oldindex->aIndex[stream->pos_next].dwChunkId) != streamnumber);
 242
 243             /* End of file soon */
 244             if (stream->pos_next * sizeof(This->oldindex->aIndex[0]) >= This->oldindex->cb)
 245             {
 246                 stream->pos_next = 0;
 247                 ++stream->index_next;
 248             }
 249         }
 250         else /* TODO: Generate an index automagically */
 251         {
 252             ERR("CAN'T PLAY WITHOUT AN INDEX! SOS! SOS! SOS!\n");
 253             assert(0);
 254         }
 255
 256         if (rtSampleStart != rtSampleStop)
 257         {
 258             hr = IMediaSample_SetTime(sample, &rtSampleStart, &rtSampleStop);
 259
 260             hr = IAsyncReader_Request(pin->pReader, sample, streamnumber);
 261
 262             if (FAILED(hr))
 263                 assert(IMediaSample_Release(sample) == 0);
 264         }
 265         else
 266         {
 267             stream->sample = sample;
 268             IMediaSample_SetActualDataLength(sample, 0);
 269             SetEvent(stream->packet_queued);
 270         }
 271     }
 272     else
 273     {
 274         if (sample)
 275         {
 276             ERR("There should be no sample!\n");
 277             assert(IMediaSample_Release(sample) == 0);
 278         }
 279     }
 280     TRACE("--> %08x\n", hr);
 281
 282     return hr;
 283 }
 284
 285 static HRESULT AVISplitter_Receive(AVISplitterImpl *This, IMediaSample *sample, DWORD streamnumber)
 286 {
 287     Parser_OutputPin *pin = (Parser_OutputPin *)This->Parser.ppPins[1+streamnumber];
 288     HRESULT hr;
 289     LONGLONG start, stop;
 290     StreamData *stream = &This->streams[streamnumber];
 291
 292     start = pin->dwSamplesProcessed;
 293     start *= stream->streamheader.dwScale;
 294     start *= 10000000;
 295     start /= stream->streamheader.dwRate;
 296
 297     if (stream->streamheader.dwSampleSize)
 298     {
 299         ULONG len = IMediaSample_GetActualDataLength(sample);
 300         ULONG size = stream->streamheader.dwSampleSize;
 301
 302         pin->dwSamplesProcessed += len / size;
 303     }
 304     else
 305         ++pin->dwSamplesProcessed;
 306
 307     stop = pin->dwSamplesProcessed;
 308     stop *= stream->streamheader.dwScale;
 309     stop *= 10000000;
 310     stop /= stream->streamheader.dwRate;
 311
 312     IMediaSample_SetTime(sample, &start, &stop);
 313
 314     hr = OutputPin_SendSample(&pin->pin, sample);
 315
 316 /* Uncomment this if you want to debug the time differences between the
 317  * different streams, it is useful for that
 318  *
 319     FIXME("stream %u, hr: %08x, Start: %u.%03u, Stop: %u.%03u\n", streamnumber, hr,
 320            (DWORD)(start / 10000000), (DWORD)((start / 10000)%1000),
 321            (DWORD)(stop / 10000000), (DWORD)((stop / 10000)%1000));
 322 */
 323     return hr;
 324 }
 325
 326 static DWORD WINAPI AVISplitter_thread_reader(LPVOID data)
 327 {
 328     struct thread_args *args = data;
 329     AVISplitterImpl *This = args->This;
 330     DWORD streamnumber = args->stream;
 331     HRESULT hr = S_OK;
 332
 333     do
 334     {
 335         HRESULT nexthr = S_FALSE;
 336         IMediaSample *sample;
 337
 338         WaitForSingleObject(This->streams[streamnumber].packet_queued, INFINITE);
 339         sample = This->streams[streamnumber].sample;
 340         This->streams[streamnumber].sample = NULL;
 341         if (!sample)
 342             break;
 343
 344         nexthr = AVISplitter_next_request(This, streamnumber);
 345
 346         hr = AVISplitter_Receive(This, sample, streamnumber);
 347         if (hr != S_OK)
 348             FIXME("Receiving error: %08x\n", hr);
 349
 350         IMediaSample_Release(sample);
 351         if (hr == S_OK)
 352             hr = nexthr;
 353         if (nexthr == S_FALSE)
 354             AVISplitter_SendEndOfFile(This, streamnumber);
 355     } while (hr == S_OK);
 356
 357     if (hr != S_FALSE)
 358         FIXME("Thread %u terminated with hr %08x!\n", streamnumber, hr);
 359     else
 360         TRACE("Thread %u terminated properly\n", streamnumber);
 361     return hr;
 362 }
 363
 364 static HRESULT AVISplitter_Sample(LPVOID iface, IMediaSample * pSample, DWORD_PTR cookie)
 365 {
 366     AVISplitterImpl *This = iface;
 367     StreamData *stream = This->streams + cookie;
 368     HRESULT hr = S_OK;
 369
 370     if (!IMediaSample_GetActualDataLength(pSample))
 371     {
 372         ERR("Received empty sample\n");
 373         return S_OK;
 374     }
 375
 376     /* Send the sample to whatever thread is appropiate
 377      * That thread should also not have a sample queued at the moment
 378      */
 379     /* Debugging */
 380     TRACE("(%p)->(%p size: %u, %lu)\n", This, pSample, IMediaSample_GetActualDataLength(pSample), cookie);
 381     assert(cookie < This->Parser.cStreams);
 382     assert(!stream->sample);
 383     assert(WaitForSingleObject(stream->packet_queued, 0) == WAIT_TIMEOUT);
 384
 385     IMediaSample_AddRef(pSample);
 386
 387     stream->sample = pSample;
 388     SetEvent(stream->packet_queued);
 389
 390     return hr;
 391 }
 392
 393 static HRESULT AVISplitter_done_process(LPVOID iface);
 394
 395 /* On the first request we have to be sure that (cStreams-1) samples have
 396  * already been processed, because otherwise some pins might not ever finish
 397  * a Pause state change
 398  */
 399 static HRESULT AVISplitter_first_request(LPVOID iface)
 400 {
 401     AVISplitterImpl *This = iface;
 402     HRESULT hr = S_OK;
 403     DWORD x;
 404     IMediaSample *sample = NULL;
 405     BOOL have_sample = FALSE;
 406
 407     TRACE("(%p)->()\n", This);
 408
 409     for (x = 0; x < This->Parser.cStreams; ++x)
 410     {
 411         StreamData *stream = This->streams + x;
 412
 413         /* Nothing should be running at this point */
 414         assert(!stream->thread);
 415
 416         assert(!sample);
 417         /* It could be we asked the thread to terminate, and the thread
 418          * already terminated before receiving the deathwish */
 419         ResetEvent(stream->packet_queued);
 420
 421         stream->pos_next = stream->pos;
 422         stream->index_next = stream->index;
 423
 424         /* There should be a packet queued from AVISplitter_next_request last time
 425          * It needs to be done now because this is the only way to ensure that every
 426          * stream will have at least 1 packet processed
 427          * If this is done after the threads start it could go all awkward and we
 428          * would have no guarantees that it's successful at all
 429          */
 430
 431         if (have_sample)
 432         {
 433             DWORD_PTR dwUser = ~0;
 434             hr = IAsyncReader_WaitForNext(This->Parser.pInputPin->pReader, 10000, &sample, &dwUser);
 435             assert(hr == S_OK);
 436             assert(sample);
 437
 438             AVISplitter_Sample(iface, sample, dwUser);
 439             IMediaSample_Release(sample);
 440         }
 441
 442         hr = AVISplitter_next_request(This, x);
 443         TRACE("-->%08x\n", hr);
 444
 445         /* Could be an EOF instead */
 446         have_sample = (hr == S_OK);
 447         if (hr == S_FALSE)
 448             AVISplitter_SendEndOfFile(This, x);
 449
 450         if (FAILED(hr) && hr != VFW_E_NOT_CONNECTED)
 451             break;
 452         hr = S_OK;
 453     }
 454
 455     /* FIXME: Don't do this for each pin that sent an EOF */
 456     for (x = 0; x < This->Parser.cStreams && SUCCEEDED(hr); ++x)
 457     {
 458         struct thread_args *args;
 459         DWORD tid;
 460
 461         if ((This->streams[x].stdindex && This->streams[x].index_next >= This->streams[x].entries) ||
 462             (!This->streams[x].stdindex && This->streams[x].index_next))
 463         {
 464             This->streams[x].thread = NULL;
 465             continue;
 466         }
 467
 468         args = CoTaskMemAlloc(sizeof(*args));
 469         args->This = This;
 470         args->stream = x;
 471         This->streams[x].thread = CreateThread(NULL, 0, AVISplitter_thread_reader, args, 0, &tid);
 472         TRACE("Created stream %u thread 0x%08x\n", x, tid);
 473     }
 474
 475     if (FAILED(hr))
 476         ERR("Horsemen of the apocalypse came to bring error 0x%08x\n", hr);
 477
 478     return hr;
 479 }
 480
 481 static HRESULT AVISplitter_done_process(LPVOID iface)
 482 {
 483     AVISplitterImpl *This = iface;
 484
 485     DWORD x;
 486
 487     for (x = 0; x < This->Parser.cStreams; ++x)
 488     {
 489         StreamData *stream = This->streams + x;
 490
 491         TRACE("Waiting for %u to terminate\n", x);
 492         /* Make the thread return first */
 493         SetEvent(stream->packet_queued);
 494         assert(WaitForSingleObject(stream->thread, 100000) != WAIT_TIMEOUT);
 495         CloseHandle(stream->thread);
 496         stream->thread = NULL;
 497
 498         if (stream->sample)
 499             assert(IMediaSample_Release(stream->sample) == 0);
 500         stream->sample = NULL;
 501
 502         ResetEvent(stream->packet_queued);
 503     }
 504     TRACE("All threads are now terminated\n");
 505
 506     return S_OK;
 507 }
 508
 509 static HRESULT AVISplitter_QueryAccept(LPVOID iface, const AM_MEDIA_TYPE * pmt)
 510 {
 511     if (IsEqualIID(&pmt->majortype, &MEDIATYPE_Stream) && IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_Avi))
 512         return S_OK;
 513     return S_FALSE;
 514 }
 515
 516 static HRESULT AVISplitter_ProcessIndex(AVISplitterImpl *This, AVISTDINDEX **index, LONGLONG qwOffset, DWORD cb)
 517 {
 518     AVISTDINDEX *pIndex;
 519     DWORD x;
 520     int rest;
 521
 522     *index = NULL;
 523     if (cb < sizeof(AVISTDINDEX))
 524     {
 525         FIXME("size %u too small\n", cb);
 526         return E_INVALIDARG;
 527     }
 528
 529     pIndex = CoTaskMemAlloc(cb);
 530     if (!pIndex)
 531         return E_OUTOFMEMORY;
 532
 533     IAsyncReader_SyncRead(((PullPin *)This->Parser.ppPins[0])->pReader, qwOffset, cb, (BYTE *)pIndex);
 534     rest = cb - sizeof(AVISUPERINDEX) + sizeof(RIFFCHUNK) + sizeof(pIndex->aIndex);
 535
 536     TRACE("FOURCC: %s\n", debugstr_an((char *)&pIndex->fcc, 4));
 537     TRACE("wLongsPerEntry: %hd\n", pIndex->wLongsPerEntry);
 538     TRACE("bIndexSubType: %hd\n", pIndex->bIndexSubType);
 539     TRACE("bIndexType: %hd\n", pIndex->bIndexType);
 540     TRACE("nEntriesInUse: %u\n", pIndex->nEntriesInUse);
 541     TRACE("dwChunkId: %.4s\n", (char *)&pIndex->dwChunkId);
 542     TRACE("qwBaseOffset: %x%08x\n", (DWORD)(pIndex->qwBaseOffset >> 32), (DWORD)pIndex->qwBaseOffset);
 543     TRACE("dwReserved_3: %u\n", pIndex->dwReserved_3);
 544
 545     if (pIndex->bIndexType != AVI_INDEX_OF_CHUNKS
 546         || pIndex->wLongsPerEntry != 2
 547         || rest < (pIndex->nEntriesInUse * sizeof(DWORD) * pIndex->wLongsPerEntry)
 548         || (pIndex->bIndexSubType != AVI_INDEX_SUB_DEFAULT))
 549     {
 550         FIXME("Invalid index chunk encountered: %u/%u, %u/%u, %u/%u, %u/%u\n",
 551               pIndex->bIndexType, AVI_INDEX_OF_CHUNKS, pIndex->wLongsPerEntry, 2,
 552               rest, (DWORD)(pIndex->nEntriesInUse * sizeof(DWORD) * pIndex->wLongsPerEntry),
 553               pIndex->bIndexSubType, AVI_INDEX_SUB_DEFAULT);
 554         *index = NULL;
 555         return E_INVALIDARG;
 556     }
 557
 558     for (x = 0; x < pIndex->nEntriesInUse; ++x)
 559     {
 560         BOOL keyframe = !(pIndex->aIndex[x].dwSize >> 31);
 561         DWORDLONG offset = pIndex->qwBaseOffset + pIndex->aIndex[x].dwOffset;
 562         TRACE("dwOffset: %x%08x\n", (DWORD)(offset >> 32), (DWORD)offset);
 563         TRACE("dwSize: %u\n", (pIndex->aIndex[x].dwSize & ~(1<<31)));
 564         TRACE("Frame is a keyframe: %s\n", keyframe ? "yes" : "no");
 565     }
 566
 567     *index = pIndex;
 568     return S_OK;
 569 }
 570
 571 static HRESULT AVISplitter_ProcessOldIndex(AVISplitterImpl *This)
 572 {
 573     ULONGLONG mov_pos = BYTES_FROM_MEDIATIME(This->CurrentChunkOffset) - sizeof(DWORD);
 574     AVIOLDINDEX *pAviOldIndex = This->oldindex;
 575     int relative = -1;
 576     DWORD x;
 577
 578     for (x = 0; x < pAviOldIndex->cb / sizeof(pAviOldIndex->aIndex[0]); ++x)
 579     {
 580         DWORD temp, temp2 = 0, offset, chunkid;
 581         PullPin *pin = This->Parser.pInputPin;
 582
 583         offset = pAviOldIndex->aIndex[x].dwOffset;
 584         chunkid = pAviOldIndex->aIndex[x].dwChunkId;
 585
 586         TRACE("dwChunkId: %.4s\n", (char *)&chunkid);
 587         TRACE("dwFlags: %08x\n", pAviOldIndex->aIndex[x].dwFlags);
 588         TRACE("dwOffset (%s): %08x\n", relative ? "relative" : "absolute", offset);
 589         TRACE("dwSize: %08x\n", pAviOldIndex->aIndex[x].dwSize);
 590
 591         /* Only scan once, or else this will take too long */
 592         if (relative == -1)
 593         {
 594             IAsyncReader_SyncRead(pin->pReader, offset, sizeof(DWORD), (BYTE *)&temp);
 595             relative = (chunkid != temp);
 596
 597             if (chunkid == mmioFOURCC('7','F','x','x')
 598                 && ((char *)&temp)[0] == 'i' && ((char *)&temp)[1] == 'x')
 599                 relative = FALSE;
 600
 601             if (relative)
 602             {
 603                 if (offset + mov_pos < BYTES_FROM_MEDIATIME(This->EndOfFile))
 604                     IAsyncReader_SyncRead(pin->pReader, offset + mov_pos, sizeof(DWORD), (BYTE *)&temp2);
 605
 606                 if (chunkid == mmioFOURCC('7','F','x','x')
 607                     && ((char *)&temp2)[0] == 'i' && ((char *)&temp2)[1] == 'x')
 608                 {
 609                     /* Do nothing, all is great */
 610                 }
 611                 else if (temp2 != chunkid)
 612                 {
 613                     ERR("Faulty index or bug in handling: Wanted FCC: %s, Abs FCC: %s (@ %x), Rel FCC: %s (@ %.0x%08x)\n",
 614                         debugstr_an((char *)&chunkid, 4), debugstr_an((char *)&temp, 4), offset,
 615                         debugstr_an((char *)&temp2, 4), (DWORD)((mov_pos + offset) >> 32), (DWORD)(mov_pos + offset));
 616                     relative = -1;
 617                 }
 618                 else
 619                     TRACE("Scanned dwChunkId: %s\n", debugstr_an((char *)&temp2, 4));
 620             }
 621             else if (!relative)
 622                 TRACE("Scanned dwChunkId: %s\n", debugstr_an((char *)&temp, 4));
 623         }
 624         /* Only dump one packet */
 625         else break;
 626     }
 627
 628     if (relative == -1)
 629     {
 630         FIXME("Dropping index: no idea whether it is relative or absolute\n");
 631         CoTaskMemFree(This->oldindex);
 632         This->oldindex = NULL;
 633     }
 634     else if (!relative)
 635         This->offset = 0;
 636     else
 637         This->offset = (DWORD)mov_pos;
 638
 639     return S_OK;
 640 }
 641
 642 static HRESULT AVISplitter_ProcessStreamList(AVISplitterImpl * This, const BYTE * pData, DWORD cb, ALLOCATOR_PROPERTIES *props)
 643 {
 644     PIN_INFO piOutput;
 645     const RIFFCHUNK * pChunk;
 646     HRESULT hr;
 647     AM_MEDIA_TYPE amt;
 648     float fSamplesPerSec = 0.0f;
 649     DWORD dwSampleSize = 0;
 650     DWORD dwLength = 0;
 651     DWORD nstdindex = 0;
 652     static const WCHAR wszStreamTemplate[] = {'S','t','r','e','a','m',' ','%','0','2','d',0};
 653     StreamData *stream;
 654
 655     ZeroMemory(&amt, sizeof(amt));
 656     piOutput.dir = PINDIR_OUTPUT;
 657     piOutput.pFilter = (IBaseFilter *)This;
 658     wsprintfW(piOutput.achName, wszStreamTemplate, This->Parser.cStreams);
 659     This->streams = CoTaskMemRealloc(This->streams, sizeof(StreamData) * (This->Parser.cStreams+1));
 660     stream = This->streams + This->Parser.cStreams;
 661     ZeroMemory(stream, sizeof(*stream));
 662
 663     for (pChunk = (const RIFFCHUNK *)pData;
 664          ((const BYTE *)pChunk >= pData) && ((const BYTE *)pChunk + sizeof(RIFFCHUNK) < pData + cb) && (pChunk->cb > 0);
 665          pChunk = (const RIFFCHUNK *)((const BYTE*)pChunk + sizeof(RIFFCHUNK) + pChunk->cb)
 666         )
 667     {
 668         switch (pChunk->fcc)
 669         {
 670         case ckidSTREAMHEADER:
 671             {
 672                 const AVISTREAMHEADER * pStrHdr = (const AVISTREAMHEADER *)pChunk;
 673                 TRACE("processing stream header\n");
 674                 stream->streamheader = *pStrHdr;
 675
 676                 fSamplesPerSec = (float)pStrHdr->dwRate / (float)pStrHdr->dwScale;
 677                 CoTaskMemFree(amt.pbFormat);
 678                 amt.pbFormat = NULL;
 679                 amt.cbFormat = 0;
 680
 681                 switch (pStrHdr->fccType)
 682                 {
 683                 case streamtypeVIDEO:
 684                     amt.formattype = FORMAT_VideoInfo;
 685                     break;
 686                 case streamtypeAUDIO:
 687                     amt.formattype = FORMAT_WaveFormatEx;
 688                     break;
 689                 default:
 690                     FIXME("fccType %.4s not handled yet\n", (const char *)&pStrHdr->fccType);
 691                     amt.formattype = FORMAT_None;
 692                 }
 693                 amt.majortype = MEDIATYPE_Video;
 694                 amt.majortype.Data1 = pStrHdr->fccType;
 695                 amt.subtype = MEDIATYPE_Video;
 696                 amt.subtype.Data1 = pStrHdr->fccHandler;
 697                 TRACE("Subtype FCC: %.04s\n", (LPCSTR)&pStrHdr->fccHandler);
 698                 amt.lSampleSize = pStrHdr->dwSampleSize;
 699                 amt.bFixedSizeSamples = (amt.lSampleSize != 0);
 700
 701                 /* FIXME: Is this right? */
 702                 if (!amt.lSampleSize)
 703                 {
 704                     amt.lSampleSize = 1;
 705                     dwSampleSize = 1;
 706                 }
 707
 708                 amt.bTemporalCompression = IsEqualGUID(&amt.majortype, &MEDIATYPE_Video); /* FIXME? */
 709                 dwSampleSize = pStrHdr->dwSampleSize;
 710                 dwLength = pStrHdr->dwLength;
 711                 if (!dwLength)
 712                     dwLength = This->AviHeader.dwTotalFrames;
 713
 714                 if (pStrHdr->dwSuggestedBufferSize && pStrHdr->dwSuggestedBufferSize > props->cbBuffer)
 715                     props->cbBuffer = pStrHdr->dwSuggestedBufferSize;
 716
 717                 break;
 718             }
 719         case ckidSTREAMFORMAT:
 720             TRACE("processing stream format data\n");
 721             if (IsEqualIID(&amt.formattype, &FORMAT_VideoInfo))
 722             {
 723                 VIDEOINFOHEADER * pvi;
 724                 /* biCompression member appears to override the value in the stream header.
 725                  * i.e. the stream header can say something completely contradictory to what
 726                  * is in the BITMAPINFOHEADER! */
 727                 if (pChunk->cb < sizeof(BITMAPINFOHEADER))
 728                 {
 729                     ERR("Not enough bytes for BITMAPINFOHEADER\n");
 730                     return E_FAIL;
 731                 }
 732                 amt.cbFormat = sizeof(VIDEOINFOHEADER) - sizeof(BITMAPINFOHEADER) + pChunk->cb;
 733                 amt.pbFormat = CoTaskMemAlloc(amt.cbFormat);
 734                 ZeroMemory(amt.pbFormat, amt.cbFormat);
 735                 pvi = (VIDEOINFOHEADER *)amt.pbFormat;
 736                 pvi->AvgTimePerFrame = (LONGLONG)(10000000.0 / fSamplesPerSec);
 737
 738                 CopyMemory(&pvi->bmiHeader, pChunk + 1, pChunk->cb);
 739                 if (pvi->bmiHeader.biCompression)
 740                     amt.subtype.Data1 = pvi->bmiHeader.biCompression;
 741             }
 742             else if (IsEqualIID(&amt.formattype, &FORMAT_WaveFormatEx))
 743             {
 744                 amt.cbFormat = pChunk->cb;
 745                 if (amt.cbFormat < sizeof(WAVEFORMATEX))
 746                     amt.cbFormat = sizeof(WAVEFORMATEX);
 747                 amt.pbFormat = CoTaskMemAlloc(amt.cbFormat);
 748                 ZeroMemory(amt.pbFormat, amt.cbFormat);
 749                 CopyMemory(amt.pbFormat, pChunk + 1, pChunk->cb);
 750             }
 751             else
 752             {
 753                 amt.cbFormat = pChunk->cb;
 754                 amt.pbFormat = CoTaskMemAlloc(amt.cbFormat);
 755                 CopyMemory(amt.pbFormat, pChunk + 1, amt.cbFormat);
 756             }
 757             break;
 758         case ckidSTREAMNAME:
 759             TRACE("processing stream name\n");
 760             /* FIXME: this doesn't exactly match native version (we omit the "##)" prefix), but hey... */
 761             MultiByteToWideChar(CP_ACP, 0, (LPCSTR)(pChunk + 1), pChunk->cb, piOutput.achName, sizeof(piOutput.achName) / sizeof(piOutput.achName[0]));
 762             break;
 763         case ckidSTREAMHANDLERDATA:
 764             FIXME("process stream handler data\n");
 765             break;
 766         case ckidAVIPADDING:
 767             TRACE("JUNK chunk ignored\n");
 768             break;
 769         case ckidAVISUPERINDEX:
 770         {
 771             const AVISUPERINDEX *pIndex = (const AVISUPERINDEX *)pChunk;
 772             DWORD x;
 773             UINT rest = pIndex->cb - sizeof(AVISUPERINDEX) + sizeof(RIFFCHUNK) + sizeof(pIndex->aIndex[0]) * ANYSIZE_ARRAY;
 774
 775             if (pIndex->cb < sizeof(AVISUPERINDEX) - sizeof(RIFFCHUNK))
 776             {
 777                 FIXME("size %u\n", pIndex->cb);
 778                 break;
 779             }
 780
 781             if (nstdindex++ > 0)
 782             {
 783                 ERR("Stream %d got more than 1 superindex?\n", This->Parser.cStreams);
 784                 break;
 785             }
 786
 787             TRACE("wLongsPerEntry: %hd\n", pIndex->wLongsPerEntry);
 788             TRACE("bIndexSubType: %hd\n", pIndex->bIndexSubType);
 789             TRACE("bIndexType: %hd\n", pIndex->bIndexType);
 790             TRACE("nEntriesInUse: %u\n", pIndex->nEntriesInUse);
 791             TRACE("dwChunkId: %.4s\n", (const char *)&pIndex->dwChunkId);
 792             if (pIndex->dwReserved[0])
 793                 TRACE("dwReserved[0]: %u\n", pIndex->dwReserved[0]);
 794             if (pIndex->dwReserved[2])
 795                 TRACE("dwReserved[1]: %u\n", pIndex->dwReserved[1]);
 796             if (pIndex->dwReserved[2])
 797                 TRACE("dwReserved[2]: %u\n", pIndex->dwReserved[2]);
 798
 799             if (pIndex->bIndexType != AVI_INDEX_OF_INDEXES
 800                 || pIndex->wLongsPerEntry != 4
 801                 || rest < (pIndex->nEntriesInUse * sizeof(DWORD) * pIndex->wLongsPerEntry)
 802                 || (pIndex->bIndexSubType != AVI_INDEX_SUB_2FIELD && pIndex->bIndexSubType != AVI_INDEX_SUB_DEFAULT))
 803             {
 804                 FIXME("Invalid index chunk encountered\n");
 805                 break;
 806             }
 807
 808             stream->entries = pIndex->nEntriesInUse;
 809             stream->stdindex = CoTaskMemRealloc(stream->stdindex, sizeof(*stream->stdindex) * stream->entries);
 810             for (x = 0; x < pIndex->nEntriesInUse; ++x)
 811             {
 812                 TRACE("qwOffset: %x%08x\n", (DWORD)(pIndex->aIndex[x].qwOffset >> 32), (DWORD)pIndex->aIndex[x].qwOffset);
 813                 TRACE("dwSize: %u\n", pIndex->aIndex[x].dwSize);
 814                 TRACE("dwDuration: %u (unreliable)\n", pIndex->aIndex[x].dwDuration);
 815
 816                 AVISplitter_ProcessIndex(This, &stream->stdindex[x], pIndex->aIndex[x].qwOffset, pIndex->aIndex[x].dwSize);
 817             }
 818             break;
 819         }
 820         default:
 821             FIXME("unknown chunk type \"%.04s\" ignored\n", (LPCSTR)&pChunk->fcc);
 822         }
 823     }
 824
 825     if (IsEqualGUID(&amt.formattype, &FORMAT_WaveFormatEx))
 826     {
 827         amt.subtype = MEDIATYPE_Video;
 828         amt.subtype.Data1 = ((WAVEFORMATEX *)amt.pbFormat)->wFormatTag;
 829     }
 830
 831     dump_AM_MEDIA_TYPE(&amt);
 832     TRACE("fSamplesPerSec = %f\n", (double)fSamplesPerSec);
 833     TRACE("dwSampleSize = %x\n", dwSampleSize);
 834     TRACE("dwLength = %x\n", dwLength);
 835
 836     stream->fSamplesPerSec = fSamplesPerSec;
 837     stream->dwSampleSize = dwSampleSize;
 838     stream->dwLength = dwLength; /* TODO: Use this for mediaseeking */
 839     stream->packet_queued = CreateEventW(NULL, 0, 0, NULL);
 840
 841     hr = Parser_AddPin(&(This->Parser), &piOutput, props, &amt);
 842     CoTaskMemFree(amt.pbFormat);
 843
 844
 845     return hr;
 846 }
 847
 848 static HRESULT AVISplitter_ProcessODML(AVISplitterImpl * This, const BYTE * pData, DWORD cb)
 849 {
 850     const RIFFCHUNK * pChunk;
 851
 852     for (pChunk = (const RIFFCHUNK *)pData;
 853          ((const BYTE *)pChunk >= pData) && ((const BYTE *)pChunk + sizeof(RIFFCHUNK) < pData + cb) && (pChunk->cb > 0);
 854          pChunk = (const RIFFCHUNK *)((const BYTE*)pChunk + sizeof(RIFFCHUNK) + pChunk->cb)
 855         )
 856     {
 857         switch (pChunk->fcc)
 858         {
 859         case ckidAVIEXTHEADER:
 860             {
 861                 int x;
 862                 const AVIEXTHEADER * pExtHdr = (const AVIEXTHEADER *)pChunk;
 863
 864                 TRACE("processing extension header\n");
 865                 if (pExtHdr->cb != sizeof(AVIEXTHEADER) - sizeof(RIFFCHUNK))
 866                 {
 867                     FIXME("Size: %u\n", pExtHdr->cb);
 868                     break;
 869                 }
 870                 TRACE("dwGrandFrames: %u\n", pExtHdr->dwGrandFrames);
 871                 for (x = 0; x < 61; ++x)
 872                     if (pExtHdr->dwFuture[x])
 873                         FIXME("dwFuture[%i] = %u (0x%08x)\n", x, pExtHdr->dwFuture[x], pExtHdr->dwFuture[x]);
 874                 This->ExtHeader = *pExtHdr;
 875                 break;
 876             }
 877         default:
 878             FIXME("unknown chunk type \"%.04s\" ignored\n", (LPCSTR)&pChunk->fcc);
 879         }
 880     }
 881
 882     return S_OK;
 883 }
 884
 885 static HRESULT AVISplitter_InitializeStreams(AVISplitterImpl *This)
 886 {
 887     unsigned int x;
 888
 889     if (This->oldindex)
 890     {
 891         DWORD nMax, n;
 892
 893         for (x = 0; x < This->Parser.cStreams; ++x)
 894         {
 895             This->streams[x].frames = 0;
 896             This->streams[x].pos = ~0;
 897             This->streams[x].index = 0;
 898         }
 899
 900         nMax = This->oldindex->cb / sizeof(This->oldindex->aIndex[0]);
 901
 902         /* Ok, maybe this is more of an exercise to see if I interpret everything correctly or not, but that is useful for now. */
 903         for (n = 0; n < nMax; ++n)
 904         {
 905             DWORD streamId = StreamFromFOURCC(This->oldindex->aIndex[n].dwChunkId);
 906             if (streamId >= This->Parser.cStreams)
 907             {
 908                 FIXME("Stream id %s ignored\n", debugstr_an((char*)&This->oldindex->aIndex[n].dwChunkId, 4));
 909                 continue;
 910             }
 911             if (This->streams[streamId].pos == ~0U)
 912                 This->streams[streamId].pos = n;
 913
 914             if (This->streams[streamId].streamheader.dwSampleSize)
 915                 This->streams[streamId].frames += This->oldindex->aIndex[n].dwSize / This->streams[streamId].streamheader.dwSampleSize;
 916             else
 917                 ++This->streams[streamId].frames;
 918         }
 919
 920         for (x = 0; x < This->Parser.cStreams; ++x)
 921         {
 922             if ((DWORD)This->streams[x].frames != This->streams[x].streamheader.dwLength)
 923             {
 924                 FIXME("stream %u: frames found: %u, frames meant to be found: %u\n", x, (DWORD)This->streams[x].frames, This->streams[x].streamheader.dwLength);
 925             }
 926         }
 927
 928     }
 929     else if (!This->streams[0].entries)
 930     {
 931         for (x = 0; x < This->Parser.cStreams; ++x)
 932         {
 933             This->streams[x].frames = This->streams[x].streamheader.dwLength;
 934         }
 935         /* MS Avi splitter does seek through the whole file, we should! */
 936         ERR("We should be manually seeking through the entire file to build an index, because the index is missing!!!\n");
 937         return E_NOTIMPL;
 938     }
 939
 940     /* Not much here yet */
 941     for (x = 0; x < This->Parser.cStreams; ++x)
 942     {
 943         StreamData *stream = This->streams + x;
 944         DWORD y;
 945         DWORD64 frames = 0;
 946
 947         stream->seek = 1;
 948
 949         if (stream->stdindex)
 950         {
 951             stream->index = 0;
 952             stream->pos = 0;
 953             for (y = 0; y < stream->entries; ++y)
 954             {
 955                 if (stream->streamheader.dwSampleSize)
 956                 {
 957                     DWORD z;
 958
 959                     for (z = 0; z < stream->stdindex[y]->nEntriesInUse; ++z)
 960                     {
 961                         UINT len = stream->stdindex[y]->aIndex[z].dwSize & ~(1 << 31);
 962                         frames += len / stream->streamheader.dwSampleSize + !!(len % stream->streamheader.dwSampleSize);
 963                     }
 964                 }
 965                 else
 966                     frames += stream->stdindex[y]->nEntriesInUse;
 967             }
 968         }
 969         else frames = stream->frames;
 970
 971         frames *= stream->streamheader.dwScale;
 972         /* Keep accuracy as high as possible for duration */
 973         This->Parser.mediaSeeking.llDuration = frames * 10000000;
 974         This->Parser.mediaSeeking.llDuration /= stream->streamheader.dwRate;
 975         This->Parser.mediaSeeking.llStop = This->Parser.mediaSeeking.llDuration;
 976         This->Parser.mediaSeeking.llCurrent = 0;
 977
 978         frames /= stream->streamheader.dwRate;
 979
 980         TRACE("Duration: %d days, %d hours, %d minutes and %d.%03u seconds\n", (DWORD)(frames / 86400),
 981         (DWORD)((frames % 86400) / 3600), (DWORD)((frames % 3600) / 60), (DWORD)(frames % 60),
 982         (DWORD)(This->Parser.mediaSeeking.llDuration/10000) % 1000);
 983     }
 984
 985     return S_OK;
 986 }
 987
 988 static HRESULT AVISplitter_Disconnect(LPVOID iface);
 989
 990 /* FIXME: fix leaks on failure here */
 991 static HRESULT AVISplitter_InputPin_PreConnect(IPin * iface, IPin * pConnectPin, ALLOCATOR_PROPERTIES *props)
 992 {
 993     PullPin *This = (PullPin *)iface;
 994     HRESULT hr;
 995     RIFFLIST list;
 996     LONGLONG pos = 0; /* in bytes */
 997     BYTE * pBuffer;
 998     RIFFCHUNK * pCurrentChunk;
 999     LONGLONG total, avail;
1000     ULONG x;
1001     DWORD indexes;
1002
1003     AVISplitterImpl * pAviSplit = (AVISplitterImpl *)This->pin.pinInfo.pFilter;
1004
1005     hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
1006     pos += sizeof(list);
1007
1008     if (list.fcc != FOURCC_RIFF)
1009     {
1010         ERR("Input stream not a RIFF file\n");
1011         return E_FAIL;
1012     }
1013     if (list.fccListType != formtypeAVI)
1014     {
1015         ERR("Input stream not an AVI RIFF file\n");
1016         return E_FAIL;
1017     }
1018
1019     hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
1020     if (list.fcc != FOURCC_LIST)
1021     {
1022         ERR("Expected LIST chunk, but got %.04s\n", (LPSTR)&list.fcc);
1023         return E_FAIL;
1024     }
1025     if (list.fccListType != listtypeAVIHEADER)
1026     {
1027         ERR("Header list expected. Got: %.04s\n", (LPSTR)&list.fccListType);
1028         return E_FAIL;
1029     }
1030
1031     pBuffer = HeapAlloc(GetProcessHeap(), 0, list.cb - sizeof(RIFFLIST) + sizeof(RIFFCHUNK));
1032     hr = IAsyncReader_SyncRead(This->pReader, pos + sizeof(list), list.cb - sizeof(RIFFLIST) + sizeof(RIFFCHUNK), pBuffer);
1033
1034     pAviSplit->AviHeader.cb = 0;
1035
1036     /* Stream list will set the buffer size here, so set a default and allow an override */
1037     props->cbBuffer = 0x20000;
1038
1039     for (pCurrentChunk = (RIFFCHUNK *)pBuffer; (BYTE *)pCurrentChunk + sizeof(*pCurrentChunk) < pBuffer + list.cb; pCurrentChunk = (RIFFCHUNK *)(((BYTE *)pCurrentChunk) + sizeof(*pCurrentChunk) + pCurrentChunk->cb))
1040     {
1041         RIFFLIST * pList;
1042
1043         switch (pCurrentChunk->fcc)
1044         {
1045         case ckidMAINAVIHEADER:
1046             /* AVIMAINHEADER includes the structure that is pCurrentChunk at the moment */
1047             memcpy(&pAviSplit->AviHeader, pCurrentChunk, sizeof(pAviSplit->AviHeader));
1048             break;
1049         case FOURCC_LIST:
1050             pList = (RIFFLIST *)pCurrentChunk;
1051             switch (pList->fccListType)
1052             {
1053             case ckidSTREAMLIST:
1054                 hr = AVISplitter_ProcessStreamList(pAviSplit, (BYTE *)pCurrentChunk + sizeof(RIFFLIST), pCurrentChunk->cb + sizeof(RIFFCHUNK) - sizeof(RIFFLIST), props);
1055                 break;
1056             case ckidODML:
1057                 hr = AVISplitter_ProcessODML(pAviSplit, (BYTE *)pCurrentChunk + sizeof(RIFFLIST), pCurrentChunk->cb + sizeof(RIFFCHUNK) - sizeof(RIFFLIST));
1058                 break;
1059             }
1060             break;
1061         case ckidAVIPADDING:
1062             /* ignore */
1063             break;
1064         default:
1065             FIXME("unrecognised header list type: %.04s\n", (LPSTR)&pCurrentChunk->fcc);
1066         }
1067     }
1068     HeapFree(GetProcessHeap(), 0, pBuffer);
1069
1070     if (pAviSplit->AviHeader.cb != sizeof(pAviSplit->AviHeader) - sizeof(RIFFCHUNK))
1071     {
1072         ERR("Avi Header wrong size!\n");
1073         return E_FAIL;
1074     }
1075
1076     pos += sizeof(RIFFCHUNK) + list.cb;
1077     hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
1078
1079     while (list.fcc == ckidAVIPADDING || (list.fcc == FOURCC_LIST && list.fccListType != listtypeAVIMOVIE))
1080     {
1081         pos += sizeof(RIFFCHUNK) + list.cb;
1082
1083         hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
1084     }
1085
1086     if (list.fcc != FOURCC_LIST)
1087     {
1088         ERR("Expected LIST, but got %.04s\n", (LPSTR)&list.fcc);
1089         return E_FAIL;
1090     }
1091     if (list.fccListType != listtypeAVIMOVIE)
1092     {
1093         ERR("Expected AVI movie list, but got %.04s\n", (LPSTR)&list.fccListType);
1094         return E_FAIL;
1095     }
1096
1097     IAsyncReader_Length(This->pReader, &total, &avail);
1098
1099     /* FIXME: AVIX files are extended beyond the FOURCC chunk "AVI ", and thus won't be played here,
1100      * once I get one of the files I'll try to fix it */
1101     if (hr == S_OK)
1102     {
1103         This->rtStart = pAviSplit->CurrentChunkOffset = MEDIATIME_FROM_BYTES(pos + sizeof(RIFFLIST));
1104         pos += list.cb + sizeof(RIFFCHUNK);
1105
1106         pAviSplit->EndOfFile = This->rtStop = MEDIATIME_FROM_BYTES(pos);
1107         if (pos > total)
1108         {
1109             ERR("File smaller (%x%08x) then EndOfFile (%x%08x)\n", (DWORD)(total >> 32), (DWORD)total, (DWORD)(pAviSplit->EndOfFile >> 32), (DWORD)pAviSplit->EndOfFile);
1110             return E_FAIL;
1111         }
1112
1113         hr = IAsyncReader_SyncRead(This->pReader, BYTES_FROM_MEDIATIME(pAviSplit->CurrentChunkOffset), sizeof(pAviSplit->CurrentChunk), (BYTE *)&pAviSplit->CurrentChunk);
1114     }
1115
1116     props->cbAlign = 1;
1117     props->cbPrefix = 0;
1118     /* Comrades, prevent shortage of buffers, or you will feel the consequences! DA! */
1119     props->cBuffers = 2 * pAviSplit->Parser.cStreams;
1120
1121     /* Now peek into the idx1 index, if available */
1122     if (hr == S_OK && (total - pos) > sizeof(RIFFCHUNK))
1123     {
1124         memset(&list, 0, sizeof(list));
1125
1126         hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
1127         if (list.fcc == ckidAVIOLDINDEX)
1128         {
1129             pAviSplit->oldindex = CoTaskMemRealloc(pAviSplit->oldindex, list.cb + sizeof(RIFFCHUNK));
1130             if (pAviSplit->oldindex)
1131             {
1132                 hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(RIFFCHUNK) + list.cb, (BYTE *)pAviSplit->oldindex);
1133                 if (hr == S_OK)
1134                 {
1135                     hr = AVISplitter_ProcessOldIndex(pAviSplit);
1136                 }
1137                 else
1138                 {
1139                     CoTaskMemFree(pAviSplit->oldindex);
1140                     pAviSplit->oldindex = NULL;
1141                     hr = S_OK;
1142                 }
1143             }
1144         }
1145     }
1146
1147     indexes = 0;
1148     for (x = 0; x < pAviSplit->Parser.cStreams; ++x)
1149         if (pAviSplit->streams[x].entries)
1150             ++indexes;
1151
1152     if (indexes)
1153     {
1154         CoTaskMemFree(pAviSplit->oldindex);
1155         pAviSplit->oldindex = NULL;
1156         if (indexes < pAviSplit->Parser.cStreams)
1157         {
1158             /* This error could possible be survived by switching to old type index,
1159              * but I would rather find out why it doesn't find everything here
1160              */
1161             ERR("%d indexes expected, but only have %d\n", indexes, pAviSplit->Parser.cStreams);
1162             indexes = 0;
1163         }
1164     }
1165     else if (!indexes && pAviSplit->oldindex)
1166         indexes = pAviSplit->Parser.cStreams;
1167
1168     if (!indexes && pAviSplit->AviHeader.dwFlags & AVIF_MUSTUSEINDEX)
1169     {
1170         FIXME("No usable index was found!\n");
1171         hr = E_FAIL;
1172     }
1173
1174     /* Now, set up the streams */
1175     if (hr == S_OK)
1176         hr = AVISplitter_InitializeStreams(pAviSplit);
1177
1178     if (hr != S_OK)
1179     {
1180         AVISplitter_Disconnect(pAviSplit);
1181         return E_FAIL;
1182     }
1183
1184     TRACE("AVI File ok\n");
1185
1186     return hr;
1187 }
1188
1189 static HRESULT AVISplitter_Flush(LPVOID iface)
1190 {
1191     AVISplitterImpl *This = iface;
1192     DWORD x;
1193
1194     TRACE("(%p)->()\n", This);
1195
1196     for (x = 0; x < This->Parser.cStreams; ++x)
1197     {
1198         StreamData *stream = This->streams + x;
1199
1200         if (stream->sample)
1201             assert(IMediaSample_Release(stream->sample) == 0);
1202         stream->sample = NULL;
1203
1204         ResetEvent(stream->packet_queued);
1205         assert(!stream->thread);
1206     }
1207
1208     return S_OK;
1209 }
1210
1211 static HRESULT AVISplitter_Disconnect(LPVOID iface)
1212 {
1213     AVISplitterImpl *This = iface;
1214     ULONG x;
1215
1216     /* TODO: Remove other memory that's allocated during connect */
1217     CoTaskMemFree(This->oldindex);
1218     This->oldindex = NULL;
1219
1220     for (x = 0; x < This->Parser.cStreams; ++x)
1221     {
1222         DWORD i;
1223
1224         StreamData *stream = &This->streams[x];
1225
1226         for (i = 0; i < stream->entries; ++i)
1227             CoTaskMemFree(stream->stdindex[i]);
1228
1229         CoTaskMemFree(stream->stdindex);
1230         CloseHandle(stream->packet_queued);
1231     }
1232     CoTaskMemFree(This->streams);
1233     This->streams = NULL;
1234     return S_OK;
1235 }
1236
1237 static ULONG WINAPI AVISplitter_Release(IBaseFilter *iface)
1238 {
1239     AVISplitterImpl *This = (AVISplitterImpl *)iface;
1240     ULONG ref;
1241
1242     ref = InterlockedDecrement(&This->Parser.refCount);
1243
1244     TRACE("(%p)->() Release from %d\n", This, ref + 1);
1245
1246     if (!ref)
1247     {
1248         AVISplitter_Flush(This);
1249         Parser_Destroy(&This->Parser);
1250     }
1251
1252     return ref;
1253 }
1254
1255 static HRESULT AVISplitter_seek(IBaseFilter *iface)
1256 {
1257     AVISplitterImpl *This = (AVISplitterImpl *)iface;
1258     PullPin *pPin = This->Parser.pInputPin;
1259     LONGLONG newpos, endpos;
1260     DWORD x;
1261
1262     newpos = This->Parser.mediaSeeking.llCurrent;
1263     endpos = This->Parser.mediaSeeking.llDuration;
1264
1265     if (newpos > endpos)
1266     {
1267         WARN("Requesting position %x%08x beyond end of stream %x%08x\n", (DWORD)(newpos>>32), (DWORD)newpos, (DWORD)(endpos>>32), (DWORD)endpos);
1268         return E_INVALIDARG;
1269     }
1270
1271     FIXME("Moving position to %u.%03u s!\n", (DWORD)(newpos / 10000000), (DWORD)((newpos / 10000)%1000));
1272
1273     EnterCriticalSection(&pPin->thread_lock);
1274     /* Send a flush to all output pins */
1275     IPin_BeginFlush((IPin *)pPin);
1276
1277     /* Make sure this is done while stopped, BeginFlush takes care of this */
1278     EnterCriticalSection(&This->Parser.csFilter);
1279     for (x = 0; x < This->Parser.cStreams; ++x)
1280     {
1281         Parser_OutputPin *pin = (Parser_OutputPin *)This->Parser.ppPins[1+x];
1282         StreamData *stream = This->streams + x;
1283         IPin *victim = NULL;
1284         LONGLONG wanted_frames;
1285         DWORD last_keyframe = 0, last_keyframeidx = 0, preroll = 0;
1286
1287         wanted_frames = newpos;
1288         wanted_frames *= stream->streamheader.dwRate;
1289         wanted_frames /= 10000000;
1290         wanted_frames /= stream->streamheader.dwScale;
1291
1292         IPin_ConnectedTo((IPin *)pin, &victim);
1293         if (victim)
1294         {
1295             IPin_NewSegment(victim, newpos, endpos, pPin->dRate);
1296             IPin_Release(victim);
1297         }
1298
1299         pin->dwSamplesProcessed = 0;
1300         stream->index = 0;
1301         stream->pos = 0;
1302         stream->seek = 1;
1303         if (stream->stdindex)
1304         {
1305             DWORD y, z = 0;
1306
1307             for (y = 0; y < stream->entries; ++y)
1308             {
1309                 for (z = 0; z < stream->stdindex[y]->nEntriesInUse; ++z)
1310                 {
1311                     if (stream->streamheader.dwSampleSize)
1312                     {
1313                         ULONG len = stream->stdindex[y]->aIndex[z].dwSize & ~(1 << 31);
1314                         ULONG size = stream->streamheader.dwSampleSize;
1315
1316                         pin->dwSamplesProcessed += len / size;
1317                         if (len % size)
1318                             ++pin->dwSamplesProcessed;
1319                     }
1320                     else ++pin->dwSamplesProcessed;
1321
1322                     if (!(stream->stdindex[y]->aIndex[z].dwSize >> 31))
1323                     {
1324                         last_keyframe = z;
1325                         last_keyframeidx = y;
1326                         preroll = 0;
1327                     }
1328                     else
1329                         ++preroll;
1330
1331                     if (pin->dwSamplesProcessed >= wanted_frames)
1332                         break;
1333                 }
1334                 if (pin->dwSamplesProcessed >= wanted_frames)
1335                     break;
1336             }
1337             stream->index = last_keyframeidx;
1338             stream->pos = last_keyframe;
1339         }
1340         else
1341         {
1342             DWORD nMax, n;
1343             nMax = This->oldindex->cb / sizeof(This->oldindex->aIndex[0]);
1344
1345             for (n = 0; n < nMax; ++n)
1346             {
1347                 DWORD streamId = StreamFromFOURCC(This->oldindex->aIndex[n].dwChunkId);
1348                 if (streamId != x)
1349                     continue;
1350
1351                 if (stream->streamheader.dwSampleSize)
1352                 {
1353                     ULONG len = This->oldindex->aIndex[n].dwSize;
1354                     ULONG size = stream->streamheader.dwSampleSize;
1355
1356                     pin->dwSamplesProcessed += len / size;
1357                     if (len % size)
1358                         ++pin->dwSamplesProcessed;
1359                 }
1360                 else ++pin->dwSamplesProcessed;
1361
1362                 if (This->oldindex->aIndex[n].dwFlags & AVIIF_KEYFRAME)
1363                 {
1364                     last_keyframe = n;
1365                     preroll = 0;
1366                 }
1367                 else
1368                     ++preroll;
1369
1370                 if (pin->dwSamplesProcessed >= wanted_frames)
1371                     break;
1372             }
1373             assert(n < nMax);
1374             stream->pos = last_keyframe;
1375             stream->index = 0;
1376         }
1377         stream->preroll = preroll;
1378         stream->seek = 1;
1379     }
1380     LeaveCriticalSection(&This->Parser.csFilter);
1381
1382     TRACE("Done flushing\n");
1383     IPin_EndFlush((IPin *)pPin);
1384     LeaveCriticalSection(&pPin->thread_lock);
1385
1386     return S_OK;
1387 }
1388
1389 static const IBaseFilterVtbl AVISplitterImpl_Vtbl =
1390 {
1391     Parser_QueryInterface,
1392     Parser_AddRef,
1393     AVISplitter_Release,
1394     Parser_GetClassID,
1395     Parser_Stop,
1396     Parser_Pause,
1397     Parser_Run,
1398     Parser_GetState,
1399     Parser_SetSyncSource,
1400     Parser_GetSyncSource,
1401     Parser_EnumPins,
1402     Parser_FindPin,
1403     Parser_QueryFilterInfo,
1404     Parser_JoinFilterGraph,
1405     Parser_QueryVendorInfo
1406 };
1407
1408 HRESULT AVISplitter_create(IUnknown * pUnkOuter, LPVOID * ppv)
1409 {
1410     HRESULT hr;
1411     AVISplitterImpl * This;
1412
1413     TRACE("(%p, %p)\n", pUnkOuter, ppv);
1414
1415     *ppv = NULL;
1416
1417     if (pUnkOuter)
1418         return CLASS_E_NOAGGREGATION;
1419
1420     /* Note: This memory is managed by the transform filter once created */
1421     This = CoTaskMemAlloc(sizeof(AVISplitterImpl));
1422
1423     This->streams = NULL;
1424     This->oldindex = NULL;
1425
1426     hr = Parser_Create(&(This->Parser), &AVISplitterImpl_Vtbl, &CLSID_AviSplitter, AVISplitter_Sample, AVISplitter_QueryAccept, AVISplitter_InputPin_PreConnect, AVISplitter_Flush, AVISplitter_Disconnect, AVISplitter_first_request, AVISplitter_done_process, NULL, AVISplitter_seek, NULL);
1427
1428     if (FAILED(hr))
1429         return hr;
1430
1431     *ppv = This;
1432
1433     return hr;
1434 }