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