dlls/quartz/avisplit.c

   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             BOOL keyframe;
 182
 183             /* End of file */
 184             if (stream->index >= stream->entries)
 185             {
 186                 TRACE("END OF STREAM ON %u\n", streamnumber);
 187                 IMediaSample_Release(sample);
 188                 return S_FALSE;
 189             }
 190
 191             rtSampleStart = index->qwBaseOffset;
 192             keyframe = !(entry->dwSize >> 31);
 193             rtSampleStart += entry->dwOffset;
 194             rtSampleStart = MEDIATIME_FROM_BYTES(rtSampleStart);
 195
 196             ++stream->pos_next;
 197             if (index->nEntriesInUse == stream->pos_next)
 198             {
 199                 stream->pos_next = 0;
 200                 ++stream->index_next;
 201             }
 202
 203             rtSampleStop = rtSampleStart + MEDIATIME_FROM_BYTES(entry->dwSize & ~(1 << 31));
 204
 205             TRACE("offset(%u) size(%u)\n", (DWORD)BYTES_FROM_MEDIATIME(rtSampleStart), (DWORD)BYTES_FROM_MEDIATIME(rtSampleStop - rtSampleStart));
 206         }
 207         else if (This->oldindex)
 208         {
 209             DWORD flags = This->oldindex->aIndex[stream->pos].dwFlags;
 210             DWORD size = This->oldindex->aIndex[stream->pos].dwSize;
 211             BOOL keyframe;
 212
 213             /* End of file */
 214             if (stream->index)
 215             {
 216                 TRACE("END OF STREAM ON %u\n", streamnumber);
 217                 IMediaSample_Release(sample);
 218                 return S_FALSE;
 219             }
 220
 221             keyframe = !!(flags & AVIIF_KEYFRAME);
 222
 223             rtSampleStart = MEDIATIME_FROM_BYTES(This->offset);
 224             rtSampleStart += MEDIATIME_FROM_BYTES(This->oldindex->aIndex[stream->pos].dwOffset);
 225             rtSampleStop = rtSampleStart + MEDIATIME_FROM_BYTES(size);
 226             if (flags & AVIIF_MIDPART)
 227             {
 228                 FIXME("Only stand alone frames are currently handled correctly!\n");
 229             }
 230             if (flags & AVIIF_LIST)
 231             {
 232                 FIXME("Not sure if this is handled correctly\n");
 233                 rtSampleStart += MEDIATIME_FROM_BYTES(sizeof(RIFFLIST));
 234                 rtSampleStop += MEDIATIME_FROM_BYTES(sizeof(RIFFLIST));
 235             }
 236             else
 237             {
 238                 rtSampleStart += MEDIATIME_FROM_BYTES(sizeof(RIFFCHUNK));
 239                 rtSampleStop += MEDIATIME_FROM_BYTES(sizeof(RIFFCHUNK));
 240             }
 241
 242             /* Slow way of finding next index */
 243             do {
 244                 stream->pos_next++;
 245             } while (stream->pos_next * sizeof(This->oldindex->aIndex[0]) < This->oldindex->cb
 246                      && StreamFromFOURCC(This->oldindex->aIndex[stream->pos_next].dwChunkId) != streamnumber);
 247
 248             /* End of file soon */
 249             if (stream->pos_next * sizeof(This->oldindex->aIndex[0]) >= This->oldindex->cb)
 250             {
 251                 stream->pos_next = 0;
 252                 ++stream->index_next;
 253             }
 254         }
 255         else /* TODO: Generate an index automagically */
 256         {
 257             ERR("CAN'T PLAY WITHOUT AN INDEX! SOS! SOS! SOS!\n");
 258             assert(0);
 259         }
 260
 261         if (rtSampleStart != rtSampleStop)
 262         {
 263             hr = IMediaSample_SetTime(sample, &rtSampleStart, &rtSampleStop);
 264
 265             hr = IAsyncReader_Request(pin->pReader, sample, streamnumber);
 266
 267             if (FAILED(hr))
 268                 assert(IMediaSample_Release(sample) == 0);
 269         }
 270         else
 271         {
 272             stream->sample = sample;
 273             IMediaSample_SetActualDataLength(sample, 0);
 274             SetEvent(stream->packet_queued);
 275         }
 276     }
 277     else
 278     {
 279         if (sample)
 280         {
 281             ERR("There should be no sample!\n");
 282             assert(IMediaSample_Release(sample) == 0);
 283         }
 284     }
 285     TRACE("--> %08x\n", hr);
 286
 287     return hr;
 288 }
 289
 290 static HRESULT AVISplitter_Receive(AVISplitterImpl *This, IMediaSample *sample, DWORD streamnumber)
 291 {
 292     Parser_OutputPin *pin = (Parser_OutputPin *)This->Parser.ppPins[1+streamnumber];
 293     HRESULT hr;
 294     LONGLONG start, stop;
 295     StreamData *stream = &This->streams[streamnumber];
 296
 297     start = pin->dwSamplesProcessed;
 298     start *= stream->streamheader.dwScale;
 299     start *= 10000000;
 300     start /= stream->streamheader.dwRate;
 301
 302     if (stream->streamheader.dwSampleSize)
 303     {
 304         ULONG len = IMediaSample_GetActualDataLength(sample);
 305         ULONG size = stream->streamheader.dwSampleSize;
 306
 307         pin->dwSamplesProcessed += len / size;
 308     }
 309     else
 310         ++pin->dwSamplesProcessed;
 311
 312     stop = pin->dwSamplesProcessed;
 313     stop *= stream->streamheader.dwScale;
 314     stop *= 10000000;
 315     stop /= stream->streamheader.dwRate;
 316
 317     IMediaSample_SetTime(sample, &start, &stop);
 318
 319     hr = OutputPin_SendSample(&pin->pin, sample);
 320
 321 /* Uncomment this if you want to debug the time differences between the
 322  * different streams, it is useful for that
 323  *
 324     FIXME("stream %u, hr: %08x, Start: %u.%03u, Stop: %u.%03u\n", streamnumber, hr,
 325            (DWORD)(start / 10000000), (DWORD)((start / 10000)%1000),
 326            (DWORD)(stop / 10000000), (DWORD)((stop / 10000)%1000));
 327 */
 328     return hr;
 329 }
 330
 331 static DWORD WINAPI AVISplitter_thread_reader(LPVOID data)
 332 {
 333     struct thread_args *args = data;
 334     AVISplitterImpl *This = args->This;
 335     DWORD streamnumber = args->stream;
 336     HRESULT hr = S_OK;
 337
 338     do
 339     {
 340         HRESULT nexthr = S_FALSE;
 341         IMediaSample *sample;
 342
 343         WaitForSingleObject(This->streams[streamnumber].packet_queued, INFINITE);
 344         sample = This->streams[streamnumber].sample;
 345         This->streams[streamnumber].sample = NULL;
 346         if (!sample)
 347             break;
 348
 349         nexthr = AVISplitter_next_request(This, streamnumber);
 350
 351         hr = AVISplitter_Receive(This, sample, streamnumber);
 352         if (hr != S_OK)
 353             FIXME("Receiving error: %08x\n", hr);
 354
 355         IMediaSample_Release(sample);
 356         if (hr == S_OK)
 357             hr = nexthr;
 358         if (nexthr == S_FALSE)
 359             AVISplitter_SendEndOfFile(This, streamnumber);
 360     } while (hr == S_OK);
 361
 362     if (hr != S_FALSE)
 363         FIXME("Thread %u terminated with hr %08x!\n", streamnumber, hr);
 364     else
 365         TRACE("Thread %u terminated properly\n", streamnumber);
 366     return hr;
 367 }
 368
 369 static HRESULT AVISplitter_Sample(LPVOID iface, IMediaSample * pSample, DWORD_PTR cookie)
 370 {
 371     AVISplitterImpl *This = iface;
 372     StreamData *stream = This->streams + cookie;
 373     HRESULT hr = S_OK;
 374
 375     if (!IMediaSample_GetActualDataLength(pSample))
 376     {
 377         ERR("Received empty sample\n");
 378         return S_OK;
 379     }
 380
 381     /* Send the sample to whatever thread is appropiate
 382      * That thread should also not have a sample queued at the moment
 383      */
 384     /* Debugging */
 385     TRACE("(%p)->(%p size: %u, %lu)\n", This, pSample, IMediaSample_GetActualDataLength(pSample), cookie);
 386     assert(cookie < This->Parser.cStreams);
 387     assert(!stream->sample);
 388     assert(WaitForSingleObject(stream->packet_queued, 0) == WAIT_TIMEOUT);
 389
 390     IMediaSample_AddRef(pSample);
 391
 392     stream->sample = pSample;
 393     SetEvent(stream->packet_queued);
 394
 395     return hr;
 396 }
 397
 398 static HRESULT AVISplitter_done_process(LPVOID iface);
 399
 400 /* On the first request we have to be sure that (cStreams-1) samples have
 401  * already been processed, because otherwise some pins might not ever finish
 402  * a Pause state change
 403  */
 404 static HRESULT AVISplitter_first_request(LPVOID iface)
 405 {
 406     AVISplitterImpl *This = (AVISplitterImpl *)iface;
 407     HRESULT hr = S_OK;
 408     DWORD x;
 409     IMediaSample *sample = NULL;
 410     BOOL have_sample = FALSE;
 411
 412     TRACE("(%p)->()\n", This);
 413
 414     for (x = 0; x < This->Parser.cStreams; ++x)
 415     {
 416         StreamData *stream = This->streams + x;
 417
 418         /* Nothing should be running at this point */
 419         assert(!stream->thread);
 420
 421         assert(!sample);
 422         /* It could be we asked the thread to terminate, and the thread
 423          * already terminated before receiving the deathwish */
 424         ResetEvent(stream->packet_queued);
 425
 426         stream->pos_next = stream->pos;
 427         stream->index_next = stream->index;
 428
 429         /* There should be a packet queued from AVISplitter_next_request last time
 430          * It needs to be done now because this is the only way to ensure that every
 431          * stream will have at least 1 packet processed
 432          * If this is done after the threads start it could go all awkward and we
 433          * would have no guarantees that it's successful at all
 434          */
 435
 436         if (have_sample)
 437         {
 438             DWORD_PTR dwUser = ~0;
 439             hr = IAsyncReader_WaitForNext(This->Parser.pInputPin->pReader, 10000, &sample, &dwUser);
 440             assert(hr == S_OK);
 441             assert(sample);
 442
 443             AVISplitter_Sample(iface, sample, dwUser);
 444             IMediaSample_Release(sample);
 445         }
 446
 447         hr = AVISplitter_next_request(This, x);
 448         TRACE("-->%08x\n", hr);
 449
 450         /* Could be an EOF instead */
 451         have_sample = (hr == S_OK);
 452         if (hr == S_FALSE)
 453             AVISplitter_SendEndOfFile(This, x);
 454
 455         if (FAILED(hr) && hr != VFW_E_NOT_CONNECTED)
 456             break;
 457         hr = S_OK;
 458     }
 459
 460     /* FIXME: Don't do this for each pin that sent an EOF */
 461     for (x = 0; x < This->Parser.cStreams && SUCCEEDED(hr); ++x)
 462     {
 463         struct thread_args *args;
 464         DWORD tid;
 465
 466         if ((This->streams[x].stdindex && This->streams[x].index_next >= This->streams[x].entries) ||
 467             (!This->streams[x].stdindex && This->streams[x].index_next))
 468         {
 469             This->streams[x].thread = NULL;
 470             continue;
 471         }
 472
 473         args = CoTaskMemAlloc(sizeof(*args));
 474         args->This = This;
 475         args->stream = x;
 476         This->streams[x].thread = CreateThread(NULL, 0, AVISplitter_thread_reader, args, 0, &tid);
 477         TRACE("Created stream %u thread 0x%08x\n", x, tid);
 478     }
 479
 480     if (FAILED(hr))
 481         ERR("Horsemen of the apocalypse came to bring error 0x%08x\n", hr);
 482
 483     return hr;
 484 }
 485
 486 static HRESULT AVISplitter_done_process(LPVOID iface)
 487 {
 488     AVISplitterImpl *This = iface;
 489
 490     DWORD x;
 491
 492     for (x = 0; x < This->Parser.cStreams; ++x)
 493     {
 494         StreamData *stream = This->streams + x;
 495
 496         TRACE("Waiting for %u to terminate\n", x);
 497         /* Make the thread return first */
 498         SetEvent(stream->packet_queued);
 499         assert(WaitForSingleObject(stream->thread, 100000) != WAIT_TIMEOUT);
 500         CloseHandle(stream->thread);
 501         stream->thread = NULL;
 502
 503         if (stream->sample)
 504             assert(IMediaSample_Release(stream->sample) == 0);
 505         stream->sample = NULL;
 506
 507         ResetEvent(stream->packet_queued);
 508     }
 509     TRACE("All threads are now terminated\n");
 510
 511     return S_OK;
 512 }
 513
 514 static HRESULT AVISplitter_QueryAccept(LPVOID iface, const AM_MEDIA_TYPE * pmt)
 515 {
 516     if (IsEqualIID(&pmt->majortype, &MEDIATYPE_Stream) && IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_Avi))
 517         return S_OK;
 518     return S_FALSE;
 519 }
 520
 521 static HRESULT AVISplitter_ProcessIndex(AVISplitterImpl *This, AVISTDINDEX **index, LONGLONG qwOffset, DWORD cb)
 522 {
 523     AVISTDINDEX *pIndex;
 524     DWORD x;
 525     int rest;
 526
 527     *index = NULL;
 528     if (cb < sizeof(AVISTDINDEX))
 529     {
 530         FIXME("size %u too small\n", cb);
 531         return E_INVALIDARG;
 532     }
 533
 534     pIndex = CoTaskMemAlloc(cb);
 535     if (!pIndex)
 536         return E_OUTOFMEMORY;
 537
 538     IAsyncReader_SyncRead(((PullPin *)This->Parser.ppPins[0])->pReader, qwOffset, cb, (BYTE *)pIndex);
 539     rest = cb - sizeof(AVISUPERINDEX) + sizeof(RIFFCHUNK) + sizeof(pIndex->aIndex);
 540
 541     TRACE("FOURCC: %s\n", debugstr_an((char *)&pIndex->fcc, 4));
 542     TRACE("wLongsPerEntry: %hd\n", pIndex->wLongsPerEntry);
 543     TRACE("bIndexSubType: %hd\n", pIndex->bIndexSubType);
 544     TRACE("bIndexType: %hd\n", pIndex->bIndexType);
 545     TRACE("nEntriesInUse: %u\n", pIndex->nEntriesInUse);
 546     TRACE("dwChunkId: %.4s\n", (char *)&pIndex->dwChunkId);
 547     TRACE("qwBaseOffset: %x%08x\n", (DWORD)(pIndex->qwBaseOffset >> 32), (DWORD)pIndex->qwBaseOffset);
 548     TRACE("dwReserved_3: %u\n", pIndex->dwReserved_3);
 549
 550     if (pIndex->bIndexType != AVI_INDEX_OF_CHUNKS
 551         || pIndex->wLongsPerEntry != 2
 552         || rest < (pIndex->nEntriesInUse * sizeof(DWORD) * pIndex->wLongsPerEntry)
 553         || (pIndex->bIndexSubType != AVI_INDEX_SUB_DEFAULT))
 554     {
 555         FIXME("Invalid index chunk encountered: %u/%u, %u/%u, %u/%u, %u/%u\n",
 556               pIndex->bIndexType, AVI_INDEX_OF_CHUNKS, pIndex->wLongsPerEntry, 2,
 557               rest, (DWORD)(pIndex->nEntriesInUse * sizeof(DWORD) * pIndex->wLongsPerEntry),
 558               pIndex->bIndexSubType, AVI_INDEX_SUB_DEFAULT);
 559         *index = NULL;
 560         return E_INVALIDARG;
 561     }
 562
 563     for (x = 0; x < pIndex->nEntriesInUse; ++x)
 564     {
 565         BOOL keyframe = !(pIndex->aIndex[x].dwSize >> 31);
 566         DWORDLONG offset = pIndex->qwBaseOffset + pIndex->aIndex[x].dwOffset;
 567         TRACE("dwOffset: %x%08x\n", (DWORD)(offset >> 32), (DWORD)offset);
 568         TRACE("dwSize: %u\n", (pIndex->aIndex[x].dwSize & ~(1<<31)));
 569         TRACE("Frame is a keyframe: %s\n", keyframe ? "yes" : "no");
 570     }
 571
 572     *index = pIndex;
 573     return S_OK;
 574 }
 575
 576 static HRESULT AVISplitter_ProcessOldIndex(AVISplitterImpl *This)
 577 {
 578     ULONGLONG mov_pos = BYTES_FROM_MEDIATIME(This->CurrentChunkOffset) - sizeof(DWORD);
 579     AVIOLDINDEX *pAviOldIndex = This->oldindex;
 580     int relative = -1;
 581     DWORD x;
 582
 583     for (x = 0; x < pAviOldIndex->cb / sizeof(pAviOldIndex->aIndex[0]); ++x)
 584     {
 585         DWORD temp, temp2 = 0, offset, chunkid;
 586         PullPin *pin = This->Parser.pInputPin;
 587
 588         offset = pAviOldIndex->aIndex[x].dwOffset;
 589         chunkid = pAviOldIndex->aIndex[x].dwChunkId;
 590
 591         TRACE("dwChunkId: %.4s\n", (char *)&chunkid);
 592         TRACE("dwFlags: %08x\n", pAviOldIndex->aIndex[x].dwFlags);
 593         TRACE("dwOffset (%s): %08x\n", relative ? "relative" : "absolute", offset);
 594         TRACE("dwSize: %08x\n", pAviOldIndex->aIndex[x].dwSize);
 595
 596         /* Only scan once, or else this will take too long */
 597         if (relative == -1)
 598         {
 599             IAsyncReader_SyncRead(pin->pReader, offset, sizeof(DWORD), (BYTE *)&temp);
 600             relative = (chunkid != temp);
 601
 602             if (chunkid == mmioFOURCC('7','F','x','x')
 603                 && ((char *)&temp)[0] == 'i' && ((char *)&temp)[1] == 'x')
 604                 relative = FALSE;
 605
 606             if (relative)
 607             {
 608                 if (offset + mov_pos < BYTES_FROM_MEDIATIME(This->EndOfFile))
 609                     IAsyncReader_SyncRead(pin->pReader, offset + mov_pos, sizeof(DWORD), (BYTE *)&temp2);
 610
 611                 if (chunkid == mmioFOURCC('7','F','x','x')
 612                     && ((char *)&temp2)[0] == 'i' && ((char *)&temp2)[1] == 'x')
 613                 {
 614                     /* Do nothing, all is great */
 615                 }
 616                 else if (temp2 != chunkid)
 617                 {
 618                     ERR("Faulty index or bug in handling: Wanted FCC: %s, Abs FCC: %s (@ %x), Rel FCC: %s (@ %.0x%08x)\n",
 619                         debugstr_an((char *)&chunkid, 4), debugstr_an((char *)&temp, 4), offset,
 620                         debugstr_an((char *)&temp2, 4), (DWORD)((mov_pos + offset) >> 32), (DWORD)(mov_pos + offset));
 621                     relative = -1;
 622                 }
 623                 else
 624                     TRACE("Scanned dwChunkId: %s\n", debugstr_an((char *)&temp2, 4));
 625             }
 626             else if (!relative)
 627                 TRACE("Scanned dwChunkId: %s\n", debugstr_an((char *)&temp, 4));
 628         }
 629         /* Only dump one packet */
 630         else break;
 631     }
 632
 633     if (relative == -1)
 634     {
 635         FIXME("Dropping index: no idea whether it is relative or absolute\n");
 636         CoTaskMemFree(This->oldindex);
 637         This->oldindex = NULL;
 638     }
 639     else if (!relative)
 640         This->offset = 0;
 641     else
 642         This->offset = (DWORD)mov_pos;
 643
 644     return S_OK;
 645 }
 646
 647 static HRESULT AVISplitter_ProcessStreamList(AVISplitterImpl * This, const BYTE * pData, DWORD cb, ALLOCATOR_PROPERTIES *props)
 648 {
 649     PIN_INFO piOutput;
 650     const RIFFCHUNK * pChunk;
 651     HRESULT hr;
 652     AM_MEDIA_TYPE amt;
 653     float fSamplesPerSec = 0.0f;
 654     DWORD dwSampleSize = 0;
 655     DWORD dwLength = 0;
 656     DWORD nstdindex = 0;
 657     static const WCHAR wszStreamTemplate[] = {'S','t','r','e','a','m',' ','%','0','2','d',0};
 658     StreamData *stream;
 659
 660     ZeroMemory(&amt, sizeof(amt));
 661     piOutput.dir = PINDIR_OUTPUT;
 662     piOutput.pFilter = (IBaseFilter *)This;
 663     wsprintfW(piOutput.achName, wszStreamTemplate, This->Parser.cStreams);
 664     This->streams = CoTaskMemRealloc(This->streams, sizeof(StreamData) * (This->Parser.cStreams+1));
 665     stream = This->streams + This->Parser.cStreams;
 666     ZeroMemory(stream, sizeof(*stream));
 667
 668     for (pChunk = (const RIFFCHUNK *)pData;
 669          ((const BYTE *)pChunk >= pData) && ((const BYTE *)pChunk + sizeof(RIFFCHUNK) < pData + cb) && (pChunk->cb > 0);
 670          pChunk = (const RIFFCHUNK *)((const BYTE*)pChunk + sizeof(RIFFCHUNK) + pChunk->cb)
 671         )
 672     {
 673         switch (pChunk->fcc)
 674         {
 675         case ckidSTREAMHEADER:
 676             {
 677                 const AVISTREAMHEADER * pStrHdr = (const AVISTREAMHEADER *)pChunk;
 678                 TRACE("processing stream header\n");
 679                 stream->streamheader = *pStrHdr;
 680
 681                 fSamplesPerSec = (float)pStrHdr->dwRate / (float)pStrHdr->dwScale;
 682                 CoTaskMemFree(amt.pbFormat);
 683                 amt.pbFormat = NULL;
 684                 amt.cbFormat = 0;
 685
 686                 switch (pStrHdr->fccType)
 687                 {
 688                 case streamtypeVIDEO:
 689                     amt.formattype = FORMAT_VideoInfo;
 690                     break;
 691                 case streamtypeAUDIO:
 692                     amt.formattype = FORMAT_WaveFormatEx;
 693                     break;
 694                 default:
 695                     FIXME("fccType %.4s not handled yet\n", (char *)&pStrHdr->fccType);
 696                     amt.formattype = FORMAT_None;
 697                 }
 698                 amt.majortype = MEDIATYPE_Video;
 699                 amt.majortype.Data1 = pStrHdr->fccType;
 700                 amt.subtype = MEDIATYPE_Video;
 701                 amt.subtype.Data1 = pStrHdr->fccHandler;
 702                 TRACE("Subtype FCC: %.04s\n", (LPCSTR)&pStrHdr->fccHandler);
 703                 amt.lSampleSize = pStrHdr->dwSampleSize;
 704                 amt.bFixedSizeSamples = (amt.lSampleSize != 0);
 705
 706                 /* FIXME: Is this right? */
 707                 if (!amt.lSampleSize)
 708                 {
 709                     amt.lSampleSize = 1;
 710                     dwSampleSize = 1;
 711                 }
 712
 713                 amt.bTemporalCompression = IsEqualGUID(&amt.majortype, &MEDIATYPE_Video); /* FIXME? */
 714                 dwSampleSize = pStrHdr->dwSampleSize;
 715                 dwLength = pStrHdr->dwLength;
 716                 if (!dwLength)
 717                     dwLength = This->AviHeader.dwTotalFrames;
 718
 719                 if (pStrHdr->dwSuggestedBufferSize && pStrHdr->dwSuggestedBufferSize > props->cbBuffer)
 720                     props->cbBuffer = pStrHdr->dwSuggestedBufferSize;
 721
 722                 break;
 723             }
 724         case ckidSTREAMFORMAT:
 725             TRACE("processing stream format data\n");
 726             if (IsEqualIID(&amt.formattype, &FORMAT_VideoInfo))
 727             {
 728                 VIDEOINFOHEADER * pvi;
 729                 /* biCompression member appears to override the value in the stream header.
 730                  * i.e. the stream header can say something completely contradictory to what
 731                  * is in the BITMAPINFOHEADER! */
 732                 if (pChunk->cb < sizeof(BITMAPINFOHEADER))
 733                 {
 734                     ERR("Not enough bytes for BITMAPINFOHEADER\n");
 735                     return E_FAIL;
 736                 }
 737                 amt.cbFormat = sizeof(VIDEOINFOHEADER) - sizeof(BITMAPINFOHEADER) + pChunk->cb;
 738                 amt.pbFormat = CoTaskMemAlloc(amt.cbFormat);
 739                 ZeroMemory(amt.pbFormat, amt.cbFormat);
 740                 pvi = (VIDEOINFOHEADER *)amt.pbFormat;
 741                 pvi->AvgTimePerFrame = (LONGLONG)(10000000.0 / fSamplesPerSec);
 742
 743                 CopyMemory(&pvi->bmiHeader, (const BYTE *)(pChunk + 1), pChunk->cb);
 744                 if (pvi->bmiHeader.biCompression)
 745                     amt.subtype.Data1 = pvi->bmiHeader.biCompression;
 746             }
 747             else if (IsEqualIID(&amt.formattype, &FORMAT_WaveFormatEx))
 748             {
 749                 amt.cbFormat = pChunk->cb;
 750                 if (amt.cbFormat < sizeof(WAVEFORMATEX))
 751                     amt.cbFormat = sizeof(WAVEFORMATEX);
 752                 amt.pbFormat = CoTaskMemAlloc(amt.cbFormat);
 753                 ZeroMemory(amt.pbFormat, amt.cbFormat);
 754                 CopyMemory(amt.pbFormat, (const BYTE *)(pChunk + 1), pChunk->cb);
 755             }
 756             else
 757             {
 758                 amt.cbFormat = pChunk->cb;
 759                 amt.pbFormat = CoTaskMemAlloc(amt.cbFormat);
 760                 CopyMemory(amt.pbFormat, (const BYTE *)(pChunk + 1), amt.cbFormat);
 761             }
 762             break;
 763         case ckidSTREAMNAME:
 764             TRACE("processing stream name\n");
 765             /* FIXME: this doesn't exactly match native version (we omit the "##)" prefix), but hey... */
 766             MultiByteToWideChar(CP_ACP, 0, (LPCSTR)(pChunk + 1), pChunk->cb, piOutput.achName, sizeof(piOutput.achName) / sizeof(piOutput.achName[0]));
 767             break;
 768         case ckidSTREAMHANDLERDATA:
 769             FIXME("process stream handler data\n");
 770             break;
 771         case ckidAVIPADDING:
 772             TRACE("JUNK chunk ignored\n");
 773             break;
 774         case ckidAVISUPERINDEX:
 775         {
 776             const AVISUPERINDEX *pIndex = (const AVISUPERINDEX *)pChunk;
 777             DWORD x;
 778             long rest = pIndex->cb - sizeof(AVISUPERINDEX) + sizeof(RIFFCHUNK) + sizeof(pIndex->aIndex[0]) * ANYSIZE_ARRAY;
 779
 780             if (pIndex->cb < sizeof(AVISUPERINDEX) - sizeof(RIFFCHUNK))
 781             {
 782                 FIXME("size %u\n", pIndex->cb);
 783                 break;
 784             }
 785
 786             if (nstdindex++ > 0)
 787             {
 788                 ERR("Stream %d got more than 1 superindex?\n", This->Parser.cStreams);
 789                 break;
 790             }
 791
 792             TRACE("wLongsPerEntry: %hd\n", pIndex->wLongsPerEntry);
 793             TRACE("bIndexSubType: %hd\n", pIndex->bIndexSubType);
 794             TRACE("bIndexType: %hd\n", pIndex->bIndexType);
 795             TRACE("nEntriesInUse: %u\n", pIndex->nEntriesInUse);
 796             TRACE("dwChunkId: %.4s\n", (char *)&pIndex->dwChunkId);
 797             if (pIndex->dwReserved[0])
 798                 TRACE("dwReserved[0]: %u\n", pIndex->dwReserved[0]);
 799             if (pIndex->dwReserved[2])
 800                 TRACE("dwReserved[1]: %u\n", pIndex->dwReserved[1]);
 801             if (pIndex->dwReserved[2])
 802                 TRACE("dwReserved[2]: %u\n", pIndex->dwReserved[2]);
 803
 804             if (pIndex->bIndexType != AVI_INDEX_OF_INDEXES
 805                 || pIndex->wLongsPerEntry != 4
 806                 || rest < (pIndex->nEntriesInUse * sizeof(DWORD) * pIndex->wLongsPerEntry)
 807                 || (pIndex->bIndexSubType != AVI_INDEX_SUB_2FIELD && pIndex->bIndexSubType != AVI_INDEX_SUB_DEFAULT))
 808             {
 809                 FIXME("Invalid index chunk encountered\n");
 810                 break;
 811             }
 812
 813             stream->entries = pIndex->nEntriesInUse;
 814             stream->stdindex = CoTaskMemRealloc(stream->stdindex, sizeof(*stream->stdindex) * stream->entries);
 815             for (x = 0; x < pIndex->nEntriesInUse; ++x)
 816             {
 817                 TRACE("qwOffset: %x%08x\n", (DWORD)(pIndex->aIndex[x].qwOffset >> 32), (DWORD)pIndex->aIndex[x].qwOffset);
 818                 TRACE("dwSize: %u\n", pIndex->aIndex[x].dwSize);
 819                 TRACE("dwDuration: %u (unreliable)\n", pIndex->aIndex[x].dwDuration);
 820
 821                 AVISplitter_ProcessIndex(This, &stream->stdindex[x], pIndex->aIndex[x].qwOffset, pIndex->aIndex[x].dwSize);
 822             }
 823             break;
 824         }
 825         default:
 826             FIXME("unknown chunk type \"%.04s\" ignored\n", (LPCSTR)&pChunk->fcc);
 827         }
 828     }
 829
 830     if (IsEqualGUID(&amt.formattype, &FORMAT_WaveFormatEx))
 831     {
 832         amt.subtype = MEDIATYPE_Video;
 833         amt.subtype.Data1 = ((WAVEFORMATEX *)amt.pbFormat)->wFormatTag;
 834     }
 835
 836     dump_AM_MEDIA_TYPE(&amt);
 837     TRACE("fSamplesPerSec = %f\n", (double)fSamplesPerSec);
 838     TRACE("dwSampleSize = %x\n", dwSampleSize);
 839     TRACE("dwLength = %x\n", dwLength);
 840
 841     stream->fSamplesPerSec = fSamplesPerSec;
 842     stream->dwSampleSize = dwSampleSize;
 843     stream->dwLength = dwLength; /* TODO: Use this for mediaseeking */
 844     stream->packet_queued = CreateEventW(NULL, 0, 0, NULL);
 845
 846     hr = Parser_AddPin(&(This->Parser), &piOutput, props, &amt);
 847     CoTaskMemFree(amt.pbFormat);
 848
 849
 850     return hr;
 851 }
 852
 853 static HRESULT AVISplitter_ProcessODML(AVISplitterImpl * This, const BYTE * pData, DWORD cb)
 854 {
 855     const RIFFCHUNK * pChunk;
 856
 857     for (pChunk = (const RIFFCHUNK *)pData;
 858          ((const BYTE *)pChunk >= pData) && ((const BYTE *)pChunk + sizeof(RIFFCHUNK) < pData + cb) && (pChunk->cb > 0);
 859          pChunk = (const RIFFCHUNK *)((const BYTE*)pChunk + sizeof(RIFFCHUNK) + pChunk->cb)
 860         )
 861     {
 862         switch (pChunk->fcc)
 863         {
 864         case ckidAVIEXTHEADER:
 865             {
 866                 int x;
 867                 const AVIEXTHEADER * pExtHdr = (const AVIEXTHEADER *)pChunk;
 868
 869                 TRACE("processing extension header\n");
 870                 if (pExtHdr->cb != sizeof(AVIEXTHEADER) - sizeof(RIFFCHUNK))
 871                 {
 872                     FIXME("Size: %u\n", pExtHdr->cb);
 873                     break;
 874                 }
 875                 TRACE("dwGrandFrames: %u\n", pExtHdr->dwGrandFrames);
 876                 for (x = 0; x < 61; ++x)
 877                     if (pExtHdr->dwFuture[x])
 878                         FIXME("dwFuture[%i] = %u (0x%08x)\n", x, pExtHdr->dwFuture[x], pExtHdr->dwFuture[x]);
 879                 This->ExtHeader = *pExtHdr;
 880                 break;
 881             }
 882         default:
 883             FIXME("unknown chunk type \"%.04s\" ignored\n", (LPCSTR)&pChunk->fcc);
 884         }
 885     }
 886
 887     return S_OK;
 888 }
 889
 890 static HRESULT AVISplitter_InitializeStreams(AVISplitterImpl *This)
 891 {
 892     unsigned int x;
 893
 894     if (This->oldindex)
 895     {
 896         DWORD nMax, n;
 897
 898         for (x = 0; x < This->Parser.cStreams; ++x)
 899         {
 900             This->streams[x].frames = 0;
 901             This->streams[x].pos = ~0;
 902             This->streams[x].index = 0;
 903         }
 904
 905         nMax = This->oldindex->cb / sizeof(This->oldindex->aIndex[0]);
 906
 907         /* Ok, maybe this is more of an excercise to see if I interpret everything correctly or not, but that is useful for now. */
 908         for (n = 0; n < nMax; ++n)
 909         {
 910             DWORD streamId = StreamFromFOURCC(This->oldindex->aIndex[n].dwChunkId);
 911             if (streamId >= This->Parser.cStreams)
 912             {
 913                 FIXME("Stream id %s ignored\n", debugstr_an((char*)&This->oldindex->aIndex[n].dwChunkId, 4));
 914                 continue;
 915             }
 916             if (This->streams[streamId].pos == ~0U)
 917                 This->streams[streamId].pos = n;
 918
 919             if (This->streams[streamId].streamheader.dwSampleSize)
 920                 This->streams[streamId].frames += This->oldindex->aIndex[n].dwSize / This->streams[streamId].streamheader.dwSampleSize;
 921             else
 922                 ++This->streams[streamId].frames;
 923         }
 924
 925         for (x = 0; x < This->Parser.cStreams; ++x)
 926         {
 927             if ((DWORD)This->streams[x].frames != This->streams[x].streamheader.dwLength)
 928             {
 929                 FIXME("stream %u: frames found: %u, frames meant to be found: %u\n", x, (DWORD)This->streams[x].frames, This->streams[x].streamheader.dwLength);
 930             }
 931         }
 932
 933     }
 934     else if (!This->streams[0].entries)
 935     {
 936         for (x = 0; x < This->Parser.cStreams; ++x)
 937         {
 938             This->streams[x].frames = This->streams[x].streamheader.dwLength;
 939         }
 940         /* MS Avi splitter does seek through the whole file, we should! */
 941         ERR("We should be manually seeking through the entire file to build an index, because the index is missing!!!\n");
 942         return E_NOTIMPL;
 943     }
 944
 945     /* Not much here yet */
 946     for (x = 0; x < This->Parser.cStreams; ++x)
 947     {
 948         StreamData *stream = This->streams + x;
 949         DWORD y;
 950         DWORD64 frames = 0;
 951
 952         stream->seek = 1;
 953
 954         if (stream->stdindex)
 955         {
 956             stream->index = 0;
 957             stream->pos = 0;
 958             for (y = 0; y < stream->entries; ++y)
 959             {
 960                 if (stream->streamheader.dwSampleSize)
 961                 {
 962                     DWORD z;
 963
 964                     for (z = 0; z < stream->stdindex[y]->nEntriesInUse; ++z)
 965                     {
 966                         UINT len = stream->stdindex[y]->aIndex[z].dwSize & ~(1 << 31);
 967                         frames += len / stream->streamheader.dwSampleSize + !!(len % stream->streamheader.dwSampleSize);
 968                     }
 969                 }
 970                 else
 971                     frames += stream->stdindex[y]->nEntriesInUse;
 972             }
 973         }
 974         else frames = stream->frames;
 975
 976         frames *= stream->streamheader.dwScale;
 977         /* Keep accuracy as high as possible for duration */
 978         This->Parser.mediaSeeking.llDuration = frames * 10000000;
 979         This->Parser.mediaSeeking.llDuration /= stream->streamheader.dwRate;
 980         This->Parser.mediaSeeking.llStop = This->Parser.mediaSeeking.llDuration;
 981         This->Parser.mediaSeeking.llCurrent = 0;
 982
 983         frames /= stream->streamheader.dwRate;
 984
 985         TRACE("Duration: %d days, %d hours, %d minutes and %d.%03u seconds\n", (DWORD)(frames / 86400),
 986         (DWORD)((frames % 86400) / 3600), (DWORD)((frames % 3600) / 60), (DWORD)(frames % 60),
 987         (DWORD)(This->Parser.mediaSeeking.llDuration/10000) % 1000);
 988     }
 989
 990     return S_OK;
 991 }
 992
 993 static HRESULT AVISplitter_Disconnect(LPVOID iface);
 994
 995 /* FIXME: fix leaks on failure here */
 996 static HRESULT AVISplitter_InputPin_PreConnect(IPin * iface, IPin * pConnectPin, ALLOCATOR_PROPERTIES *props)
 997 {
 998     PullPin *This = (PullPin *)iface;
 999     HRESULT hr;
1000     RIFFLIST list;
1001     LONGLONG pos = 0; /* in bytes */
1002     BYTE * pBuffer;
1003     RIFFCHUNK * pCurrentChunk;
1004     LONGLONG total, avail;
1005     ULONG x;
1006     DWORD indexes;
1007
1008     AVISplitterImpl * pAviSplit = (AVISplitterImpl *)This->pin.pinInfo.pFilter;
1009
1010     hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
1011     pos += sizeof(list);
1012
1013     if (list.fcc != FOURCC_RIFF)
1014     {
1015         ERR("Input stream not a RIFF file\n");
1016         return E_FAIL;
1017     }
1018     if (list.fccListType != formtypeAVI)
1019     {
1020         ERR("Input stream not an AVI RIFF file\n");
1021         return E_FAIL;
1022     }
1023
1024     hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
1025     if (list.fcc != FOURCC_LIST)
1026     {
1027         ERR("Expected LIST chunk, but got %.04s\n", (LPSTR)&list.fcc);
1028         return E_FAIL;
1029     }
1030     if (list.fccListType != listtypeAVIHEADER)
1031     {
1032         ERR("Header list expected. Got: %.04s\n", (LPSTR)&list.fccListType);
1033         return E_FAIL;
1034     }
1035
1036     pBuffer = HeapAlloc(GetProcessHeap(), 0, list.cb - sizeof(RIFFLIST) + sizeof(RIFFCHUNK));
1037     hr = IAsyncReader_SyncRead(This->pReader, pos + sizeof(list), list.cb - sizeof(RIFFLIST) + sizeof(RIFFCHUNK), pBuffer);
1038
1039     pAviSplit->AviHeader.cb = 0;
1040
1041     /* Stream list will set the buffer size here, so set a default and allow an override */
1042     props->cbBuffer = 0x20000;
1043
1044     for (pCurrentChunk = (RIFFCHUNK *)pBuffer; (BYTE *)pCurrentChunk + sizeof(*pCurrentChunk) < pBuffer + list.cb; pCurrentChunk = (RIFFCHUNK *)(((BYTE *)pCurrentChunk) + sizeof(*pCurrentChunk) + pCurrentChunk->cb))
1045     {
1046         RIFFLIST * pList;
1047
1048         switch (pCurrentChunk->fcc)
1049         {
1050         case ckidMAINAVIHEADER:
1051             /* AVIMAINHEADER includes the structure that is pCurrentChunk at the moment */
1052             memcpy(&pAviSplit->AviHeader, pCurrentChunk, sizeof(pAviSplit->AviHeader));
1053             break;
1054         case FOURCC_LIST:
1055             pList = (RIFFLIST *)pCurrentChunk;
1056             switch (pList->fccListType)
1057             {
1058             case ckidSTREAMLIST:
1059                 hr = AVISplitter_ProcessStreamList(pAviSplit, (BYTE *)pCurrentChunk + sizeof(RIFFLIST), pCurrentChunk->cb + sizeof(RIFFCHUNK) - sizeof(RIFFLIST), props);
1060                 break;
1061             case ckidODML:
1062                 hr = AVISplitter_ProcessODML(pAviSplit, (BYTE *)pCurrentChunk + sizeof(RIFFLIST), pCurrentChunk->cb + sizeof(RIFFCHUNK) - sizeof(RIFFLIST));
1063                 break;
1064             }
1065             break;
1066         case ckidAVIPADDING:
1067             /* ignore */
1068             break;
1069         default:
1070             FIXME("unrecognised header list type: %.04s\n", (LPSTR)&pCurrentChunk->fcc);
1071         }
1072     }
1073     HeapFree(GetProcessHeap(), 0, pBuffer);
1074
1075     if (pAviSplit->AviHeader.cb != sizeof(pAviSplit->AviHeader) - sizeof(RIFFCHUNK))
1076     {
1077         ERR("Avi Header wrong size!\n");
1078         return E_FAIL;
1079     }
1080
1081     pos += sizeof(RIFFCHUNK) + list.cb;
1082     hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
1083
1084     while (list.fcc == ckidAVIPADDING || (list.fcc == FOURCC_LIST && list.fccListType != listtypeAVIMOVIE))
1085     {
1086         pos += sizeof(RIFFCHUNK) + list.cb;
1087
1088         hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
1089     }
1090
1091     if (list.fcc != FOURCC_LIST)
1092     {
1093         ERR("Expected LIST, but got %.04s\n", (LPSTR)&list.fcc);
1094         return E_FAIL;
1095     }
1096     if (list.fccListType != listtypeAVIMOVIE)
1097     {
1098         ERR("Expected AVI movie list, but got %.04s\n", (LPSTR)&list.fccListType);
1099         return E_FAIL;
1100     }
1101
1102     IAsyncReader_Length(This->pReader, &total, &avail);
1103
1104     /* FIXME: AVIX files are extended beyond the FOURCC chunk "AVI ", and thus won't be played here,
1105      * once I get one of the files I'll try to fix it */
1106     if (hr == S_OK)
1107     {
1108         This->rtStart = pAviSplit->CurrentChunkOffset = MEDIATIME_FROM_BYTES(pos + sizeof(RIFFLIST));
1109         pos += list.cb + sizeof(RIFFCHUNK);
1110
1111         pAviSplit->EndOfFile = This->rtStop = MEDIATIME_FROM_BYTES(pos);
1112         if (pos > total)
1113         {
1114             ERR("File smaller (%x%08x) then EndOfFile (%x%08x)\n", (DWORD)(total >> 32), (DWORD)total, (DWORD)(pAviSplit->EndOfFile >> 32), (DWORD)pAviSplit->EndOfFile);
1115             return E_FAIL;
1116         }
1117
1118         hr = IAsyncReader_SyncRead(This->pReader, BYTES_FROM_MEDIATIME(pAviSplit->CurrentChunkOffset), sizeof(pAviSplit->CurrentChunk), (BYTE *)&pAviSplit->CurrentChunk);
1119     }
1120
1121     props->cbAlign = 1;
1122     props->cbPrefix = 0;
1123     /* Comrades, prevent shortage of buffers, or you will feel the consequences! DA! */
1124     props->cBuffers = 2 * pAviSplit->Parser.cStreams;
1125
1126     /* Now peek into the idx1 index, if available */
1127     if (hr == S_OK && (total - pos) > sizeof(RIFFCHUNK))
1128     {
1129         memset(&list, 0, sizeof(list));
1130
1131         hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(list), (BYTE *)&list);
1132         if (list.fcc == ckidAVIOLDINDEX)
1133         {
1134             pAviSplit->oldindex = CoTaskMemRealloc(pAviSplit->oldindex, list.cb + sizeof(RIFFCHUNK));
1135             if (pAviSplit->oldindex)
1136             {
1137                 hr = IAsyncReader_SyncRead(This->pReader, pos, sizeof(RIFFCHUNK) + list.cb, (BYTE *)pAviSplit->oldindex);
1138                 if (hr == S_OK)
1139                 {
1140                     hr = AVISplitter_ProcessOldIndex(pAviSplit);
1141                 }
1142                 else
1143                 {
1144                     CoTaskMemFree(pAviSplit->oldindex);
1145                     pAviSplit->oldindex = NULL;
1146                     hr = S_OK;
1147                 }
1148             }
1149         }
1150     }
1151
1152     indexes = 0;
1153     for (x = 0; x < pAviSplit->Parser.cStreams; ++x)
1154         if (pAviSplit->streams[x].entries)
1155             ++indexes;
1156
1157     if (indexes)
1158     {
1159         CoTaskMemFree(pAviSplit->oldindex);
1160         pAviSplit->oldindex = NULL;
1161         if (indexes < pAviSplit->Parser.cStreams)
1162         {
1163             /* This error could possible be survived by switching to old type index,
1164              * but I would rather find out why it doesn't find everything here
1165              */
1166             ERR("%d indexes expected, but only have %d\n", indexes, pAviSplit->Parser.cStreams);
1167             indexes = 0;
1168         }
1169     }
1170     else if (!indexes && pAviSplit->oldindex)
1171         indexes = pAviSplit->Parser.cStreams;
1172
1173     if (!indexes && pAviSplit->AviHeader.dwFlags & AVIF_MUSTUSEINDEX)
1174     {
1175         FIXME("No usable index was found!\n");
1176         hr = E_FAIL;
1177     }
1178
1179     /* Now, set up the streams */
1180     if (hr == S_OK)
1181         hr = AVISplitter_InitializeStreams(pAviSplit);
1182
1183     if (hr != S_OK)
1184     {
1185         AVISplitter_Disconnect(pAviSplit);
1186         return E_FAIL;
1187     }
1188
1189     TRACE("AVI File ok\n");
1190
1191     return hr;
1192 }
1193
1194 static HRESULT AVISplitter_Flush(LPVOID iface)
1195 {
1196     AVISplitterImpl *This = (AVISplitterImpl*)iface;
1197     DWORD x;
1198
1199     TRACE("(%p)->()\n", This);
1200
1201     for (x = 0; x < This->Parser.cStreams; ++x)
1202     {
1203         StreamData *stream = This->streams + x;
1204
1205         if (stream->sample)
1206             assert(IMediaSample_Release(stream->sample) == 0);
1207         stream->sample = NULL;
1208
1209         ResetEvent(stream->packet_queued);
1210         assert(!stream->thread);
1211     }
1212
1213     return S_OK;
1214 }
1215
1216 static HRESULT AVISplitter_Disconnect(LPVOID iface)
1217 {
1218     AVISplitterImpl *This = iface;
1219     ULONG x;
1220
1221     /* TODO: Remove other memory that's allocated during connect */
1222     CoTaskMemFree(This->oldindex);
1223     This->oldindex = NULL;
1224
1225     for (x = 0; x < This->Parser.cStreams; ++x)
1226     {
1227         DWORD i;
1228
1229         StreamData *stream = &This->streams[x];
1230
1231         for (i = 0; i < stream->entries; ++i)
1232             CoTaskMemFree(stream->stdindex[i]);
1233
1234         CoTaskMemFree(stream->stdindex);
1235         CloseHandle(stream->packet_queued);
1236     }
1237     CoTaskMemFree(This->streams);
1238     This->streams = NULL;
1239     return S_OK;
1240 }
1241
1242 static ULONG WINAPI AVISplitter_Release(IBaseFilter *iface)
1243 {
1244     AVISplitterImpl *This = (AVISplitterImpl *)iface;
1245     ULONG ref;
1246
1247     ref = InterlockedDecrement(&This->Parser.refCount);
1248
1249     TRACE("(%p)->() Release from %d\n", This, ref + 1);
1250
1251     if (!ref)
1252     {
1253         AVISplitter_Flush(This);
1254         Parser_Destroy(&This->Parser);
1255     }
1256
1257     return ref;
1258 }
1259
1260 static HRESULT AVISplitter_seek(IBaseFilter *iface)
1261 {
1262     AVISplitterImpl *This = (AVISplitterImpl *)iface;
1263     PullPin *pPin = This->Parser.pInputPin;
1264     LONGLONG newpos, endpos;
1265     DWORD x;
1266
1267     newpos = This->Parser.mediaSeeking.llCurrent;
1268     endpos = This->Parser.mediaSeeking.llDuration;
1269
1270     if (newpos > endpos)
1271     {
1272         WARN("Requesting position %x%08x beyond end of stream %x%08x\n", (DWORD)(newpos>>32), (DWORD)newpos, (DWORD)(endpos>>32), (DWORD)endpos);
1273         return E_INVALIDARG;
1274     }
1275
1276     FIXME("Moving position to %u.%03u s!\n", (DWORD)(newpos / 10000000), (DWORD)((newpos / 10000)%1000));
1277
1278     EnterCriticalSection(&pPin->thread_lock);
1279     /* Send a flush to all output pins */
1280     IPin_BeginFlush((IPin *)pPin);
1281
1282     /* Make sure this is done while stopped, BeginFlush takes care of this */
1283     EnterCriticalSection(&This->Parser.csFilter);
1284     for (x = 0; x < This->Parser.cStreams; ++x)
1285     {
1286         Parser_OutputPin *pin = (Parser_OutputPin *)This->Parser.ppPins[1+x];
1287         StreamData *stream = This->streams + x;
1288         IPin *victim = NULL;
1289         LONGLONG wanted_frames;
1290         DWORD last_keyframe = 0, last_keyframeidx = 0, preroll = 0;
1291
1292         wanted_frames = newpos;
1293         wanted_frames *= stream->streamheader.dwRate;
1294         wanted_frames /= 10000000;
1295         wanted_frames /= stream->streamheader.dwScale;
1296
1297         IPin_ConnectedTo((IPin *)pin, &victim);
1298         if (victim)
1299         {
1300             IPin_NewSegment(victim, newpos, endpos, pPin->dRate);
1301             IPin_Release(victim);
1302         }
1303
1304         pin->dwSamplesProcessed = 0;
1305         stream->index = 0;
1306         stream->pos = 0;
1307         stream->seek = 1;
1308         if (stream->stdindex)
1309         {
1310             DWORD y, z = 0;
1311
1312             for (y = 0; y < stream->entries; ++y)
1313             {
1314                 for (z = 0; z < stream->stdindex[y]->nEntriesInUse; ++z)
1315                 {
1316                     if (stream->streamheader.dwSampleSize)
1317                     {
1318                         ULONG len = stream->stdindex[y]->aIndex[z].dwSize & ~(1 << 31);
1319                         ULONG size = stream->streamheader.dwSampleSize;
1320
1321                         pin->dwSamplesProcessed += len / size;
1322                         if (len % size)
1323                             ++pin->dwSamplesProcessed;
1324                     }
1325                     else ++pin->dwSamplesProcessed;
1326
1327                     if (!(stream->stdindex[y]->aIndex[z].dwSize >> 31))
1328                     {
1329                         last_keyframe = z;
1330                         last_keyframeidx = y;
1331                         preroll = 0;
1332                     }
1333                     else
1334                         ++preroll;
1335
1336                     if (pin->dwSamplesProcessed >= wanted_frames)
1337                         break;
1338                 }
1339                 if (pin->dwSamplesProcessed >= wanted_frames)
1340                     break;
1341             }
1342             stream->index = last_keyframeidx;
1343             stream->pos = last_keyframe;
1344         }
1345         else
1346         {
1347             DWORD nMax, n;
1348             nMax = This->oldindex->cb / sizeof(This->oldindex->aIndex[0]);
1349
1350             for (n = 0; n < nMax; ++n)
1351             {
1352                 DWORD streamId = StreamFromFOURCC(This->oldindex->aIndex[n].dwChunkId);
1353                 if (streamId != x)
1354                     continue;
1355
1356                 if (stream->streamheader.dwSampleSize)
1357                 {
1358                     ULONG len = This->oldindex->aIndex[n].dwSize;
1359                     ULONG size = stream->streamheader.dwSampleSize;
1360
1361                     pin->dwSamplesProcessed += len / size;
1362                     if (len % size)
1363                         ++pin->dwSamplesProcessed;
1364                 }
1365                 else ++pin->dwSamplesProcessed;
1366
1367                 if (This->oldindex->aIndex[n].dwFlags & AVIIF_KEYFRAME)
1368                 {
1369                     last_keyframe = n;
1370                     preroll = 0;
1371                 }
1372                 else
1373                     ++preroll;
1374
1375                 if (pin->dwSamplesProcessed >= wanted_frames)
1376                     break;
1377             }
1378             assert(n < nMax);
1379             stream->pos = last_keyframe;
1380             stream->index = 0;
1381         }
1382         stream->preroll = preroll;
1383         stream->seek = 1;
1384     }
1385     LeaveCriticalSection(&This->Parser.csFilter);
1386
1387     TRACE("Done flushing\n");
1388     IPin_EndFlush((IPin *)pPin);
1389     LeaveCriticalSection(&pPin->thread_lock);
1390
1391     return S_OK;
1392 }
1393
1394 static const IBaseFilterVtbl AVISplitterImpl_Vtbl =
1395 {
1396     Parser_QueryInterface,
1397     Parser_AddRef,
1398     AVISplitter_Release,
1399     Parser_GetClassID,
1400     Parser_Stop,
1401     Parser_Pause,
1402     Parser_Run,
1403     Parser_GetState,
1404     Parser_SetSyncSource,
1405     Parser_GetSyncSource,
1406     Parser_EnumPins,
1407     Parser_FindPin,
1408     Parser_QueryFilterInfo,
1409     Parser_JoinFilterGraph,
1410     Parser_QueryVendorInfo
1411 };
1412
1413 HRESULT AVISplitter_create(IUnknown * pUnkOuter, LPVOID * ppv)
1414 {
1415     HRESULT hr;
1416     AVISplitterImpl * This;
1417
1418     TRACE("(%p, %p)\n", pUnkOuter, ppv);
1419
1420     *ppv = NULL;
1421
1422     if (pUnkOuter)
1423         return CLASS_E_NOAGGREGATION;
1424
1425     /* Note: This memory is managed by the transform filter once created */
1426     This = CoTaskMemAlloc(sizeof(AVISplitterImpl));
1427
1428     This->streams = NULL;
1429     This->oldindex = NULL;
1430
1431     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);
1432
1433     if (FAILED(hr))
1434         return hr;
1435
1436     *ppv = (LPVOID)This;
1437
1438     return hr;
1439 }