4 * Copyright 2003 Robert Shearman
5 * Copyright 2004-2005 Christian Costa
6 * Copyright 2007 Chris Robinson
7 * Copyright 2008 Maarten Lankhorst
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
27 #include "quartz_private.h"
28 #include "control_private.h"
37 #include "wine/unicode.h"
38 #include "wine/debug.h"
42 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
44 #define SEQUENCE_HEADER_CODE 0xB3
45 #define PACK_START_CODE 0xBA
47 #define SYSTEM_START_CODE 0xBB
48 #define AUDIO_ELEMENTARY_STREAM 0xC0
49 #define VIDEO_ELEMENTARY_STREAM 0xE0
51 #define MPEG_SYSTEM_HEADER 3
52 #define MPEG_VIDEO_HEADER 2
53 #define MPEG_AUDIO_HEADER 1
54 #define MPEG_NO_HEADER 0
56 #define SEEK_INTERVAL (ULONGLONG)(10 * 10000000) /* Add an entry every 10 seconds */
63 typedef struct MPEGSplitterImpl
72 /* Whether we just seeked (or started playing) */
77 struct seek_entry *seektable;
80 static inline MPEGSplitterImpl *impl_from_IMediaSeeking( IMediaSeeking *iface )
82 return (MPEGSplitterImpl *)((char*)iface - FIELD_OFFSET(MPEGSplitterImpl, Parser.sourceSeeking.lpVtbl));
85 static int MPEGSplitter_head_check(const BYTE *header)
87 /* If this is a possible start code, check for a system or video header */
88 if (header[0] == 0 && header[1] == 0 && header[2] == 1)
90 /* Check if we got a system or elementary stream start code */
91 if (header[3] == PACK_START_CODE ||
92 header[3] == VIDEO_ELEMENTARY_STREAM ||
93 header[3] == AUDIO_ELEMENTARY_STREAM)
94 return MPEG_SYSTEM_HEADER;
96 /* Check for a MPEG video sequence start code */
97 if (header[3] == SEQUENCE_HEADER_CODE)
98 return MPEG_VIDEO_HEADER;
101 /* This should give a good guess if we have an MPEG audio header */
102 if(header[0] == 0xff && ((header[1]>>5)&0x7) == 0x7 &&
103 ((header[1]>>1)&0x3) != 0 && ((header[2]>>4)&0xf) != 0xf &&
104 ((header[2]>>2)&0x3) != 0x3)
105 return MPEG_AUDIO_HEADER;
108 return MPEG_NO_HEADER;
111 static const WCHAR wszAudioStream[] = {'A','u','d','i','o',0};
112 static const WCHAR wszVideoStream[] = {'V','i','d','e','o',0};
114 static const DWORD freqs[10] = { 44100, 48000, 32000, 22050, 24000, 16000, 11025, 12000, 8000, 0 };
116 static const DWORD tabsel_123[2][3][16] = {
117 { {0,32,64,96,128,160,192,224,256,288,320,352,384,416,448,},
118 {0,32,48,56, 64, 80, 96,112,128,160,192,224,256,320,384,},
119 {0,32,40,48, 56, 64, 80, 96,112,128,160,192,224,256,320,} },
121 { {0,32,48,56,64,80,96,112,128,144,160,176,192,224,256,},
122 {0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,},
123 {0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,} }
126 static HRESULT parse_header(BYTE *header, LONGLONG *plen, LONGLONG *pduration)
130 int bitrate_index, freq_index, lsf = 1, mpeg1, layer, padding, bitrate, length;
132 if (!(header[0] == 0xff && ((header[1]>>5)&0x7) == 0x7 &&
133 ((header[1]>>1)&0x3) != 0 && ((header[2]>>4)&0xf) != 0xf &&
134 ((header[2]>>2)&0x3) != 0x3))
136 FIXME("Not a valid header: %02x:%02x\n", header[0], header[1]);
140 mpeg1 = (header[1]>>4)&0x1;
142 lsf = ((header[1]>>3)&0x1)^1;
144 layer = 4-((header[1]>>1)&0x3);
145 bitrate_index = ((header[2]>>4)&0xf);
146 freq_index = ((header[2]>>2)&0x3) + (mpeg1?(lsf*3):6);
147 padding = ((header[2]>>1)&0x1);
149 bitrate = tabsel_123[lsf][layer-1][bitrate_index] * 1000;
150 if (!bitrate || layer != 3)
152 FIXME("Not a valid header: %02x:%02x:%02x:%02x\n", header[0], header[1], header[2], header[3]);
157 if (layer == 3 || layer == 2)
158 length = 144 * bitrate / freqs[freq_index] + padding;
160 length = 4 * (12 * bitrate / freqs[freq_index] + padding);
162 duration = (ULONGLONG)10000000 * (ULONGLONG)(length) / (ULONGLONG)(bitrate/8);
165 *pduration += duration;
169 static HRESULT FillBuffer(MPEGSplitterImpl *This, IMediaSample *pCurrentSample)
171 Parser_OutputPin * pOutputPin = (Parser_OutputPin*)This->Parser.ppPins[1];
173 LONGLONG pos = BYTES_FROM_MEDIATIME(This->Parser.pInputPin->rtNext);
174 LONGLONG time = This->position, rtstop, rtstart;
177 DWORD len = IMediaSample_GetActualDataLength(pCurrentSample);
179 TRACE("Source length: %u\n", len);
180 IMediaSample_GetPointer(pCurrentSample, &fbuf);
182 /* Find the next valid header.. it <SHOULD> be right here */
183 assert(parse_header(fbuf, &length, &This->position) == S_OK);
184 IMediaSample_SetActualDataLength(pCurrentSample, length);
186 /* Queue the next sample */
187 if (length + 4 == len)
189 PullPin *pin = This->Parser.pInputPin;
190 LONGLONG stop = BYTES_FROM_MEDIATIME(pin->rtStop);
193 memcpy(This->header, fbuf + length, 4);
194 while (FAILED(hr = parse_header(This->header, &length, NULL)))
196 memmove(This->header, This->header+1, 3);
199 IAsyncReader_SyncRead(pin->pReader, ++pos, 1, This->header + 3);
201 pin->rtNext = MEDIATIME_FROM_BYTES(pos);
205 /* Remove 4 for the last header, which should hopefully work */
206 IMediaSample *sample = NULL;
207 LONGLONG rtSampleStart = pin->rtNext - MEDIATIME_FROM_BYTES(4);
208 LONGLONG rtSampleStop = rtSampleStart + MEDIATIME_FROM_BYTES(length + 4);
210 if (rtSampleStop > pin->rtStop)
211 rtSampleStop = MEDIATIME_FROM_BYTES(ALIGNUP(BYTES_FROM_MEDIATIME(pin->rtStop), pin->cbAlign));
213 hr = IMemAllocator_GetBuffer(pin->pAlloc, &sample, NULL, NULL, 0);
216 IMediaSample_SetTime(sample, &rtSampleStart, &rtSampleStop);
217 IMediaSample_SetPreroll(sample, 0);
218 IMediaSample_SetDiscontinuity(sample, 0);
219 IMediaSample_SetSyncPoint(sample, 1);
220 pin->rtCurrent = rtSampleStart;
221 pin->rtNext = rtSampleStop;
222 hr = IAsyncReader_Request(pin->pReader, sample, 0);
225 FIXME("o_Ox%08x\n", hr);
228 /* If not, we're presumably at the end of file */
230 TRACE("Media time : %u.%03u\n", (DWORD)(This->position/10000000), (DWORD)((This->position/10000)%1000));
232 if (IMediaSample_IsDiscontinuity(pCurrentSample) == S_OK) {
234 EnterCriticalSection(&This->Parser.filter.csFilter);
235 pOutputPin->pin.pin.tStart = time;
236 pOutputPin->pin.pin.dRate = This->Parser.sourceSeeking.dRate;
237 hr = IPin_ConnectedTo((IPin *)pOutputPin, &victim);
240 hr = IPin_NewSegment(victim, time, This->Parser.sourceSeeking.llStop,
241 This->Parser.sourceSeeking.dRate);
243 FIXME("NewSegment returns %08x\n", hr);
244 IPin_Release(victim);
246 LeaveCriticalSection(&This->Parser.filter.csFilter);
250 rtstart = (double)(time - pOutputPin->pin.pin.tStart) / pOutputPin->pin.pin.dRate;
251 rtstop = (double)(This->position - pOutputPin->pin.pin.tStart) / pOutputPin->pin.pin.dRate;
252 IMediaSample_SetTime(pCurrentSample, &rtstart, &rtstop);
253 IMediaSample_SetMediaTime(pCurrentSample, &time, &This->position);
255 hr = BaseOutputPinImpl_Deliver((BaseOutputPin*)&pOutputPin->pin, pCurrentSample);
260 TRACE("Error sending sample (%x)\n", hr);
262 TRACE("S_FALSE (%d), holding\n", IMediaSample_GetActualDataLength(pCurrentSample));
269 static HRESULT MPEGSplitter_process_sample(LPVOID iface, IMediaSample * pSample, DWORD_PTR cookie)
271 MPEGSplitterImpl *This = iface;
273 DWORD cbSrcStream = 0;
274 REFERENCE_TIME tStart, tStop, tAviStart = This->position;
277 hr = IMediaSample_GetTime(pSample, &tStart, &tStop);
280 cbSrcStream = IMediaSample_GetActualDataLength(pSample);
281 hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
284 /* Flush occurring */
285 if (cbSrcStream == 0)
287 FIXME(".. Why do I need you?\n");
291 /* trace removed for performance reasons */
292 /* TRACE("(%p), %llu -> %llu\n", pSample, tStart, tStop); */
294 /* Now, try to find a new header */
295 hr = FillBuffer(This, pSample);
298 WARN("Failed with hres: %08x!\n", hr);
300 /* Unset progression if denied! */
301 if (hr == VFW_E_WRONG_STATE || hr == S_FALSE)
303 memcpy(This->header, pbSrcStream, 4);
304 This->Parser.pInputPin->rtCurrent = tStart;
305 This->position = tAviStart;
309 if (BYTES_FROM_MEDIATIME(tStop) >= This->EndOfFile || This->position >= This->Parser.sourceSeeking.llStop)
313 TRACE("End of file reached\n");
315 for (i = 0; i < This->Parser.cStreams; i++)
319 hr = IPin_ConnectedTo(This->Parser.ppPins[i+1], &ppin);
322 hr = IPin_EndOfStream(ppin);
326 WARN("Error sending EndOfStream to pin %u (%x)\n", i, hr);
329 /* Force the pullpin thread to stop */
337 static HRESULT MPEGSplitter_query_accept(LPVOID iface, const AM_MEDIA_TYPE *pmt)
339 if (!IsEqualIID(&pmt->majortype, &MEDIATYPE_Stream))
342 if (IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_MPEG1Audio))
345 if (IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_MPEG1Video))
346 FIXME("MPEG-1 video streams not yet supported.\n");
347 else if (IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_MPEG1System))
348 FIXME("MPEG-1 system streams not yet supported.\n");
349 else if (IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_MPEG1VideoCD))
350 FIXME("MPEG-1 VideoCD streams not yet supported.\n");
356 static HRESULT MPEGSplitter_init_audio(MPEGSplitterImpl *This, const BYTE *header, PIN_INFO *ppiOutput, AM_MEDIA_TYPE *pamt)
358 WAVEFORMATEX *format;
368 ZeroMemory(pamt, sizeof(*pamt));
369 ppiOutput->dir = PINDIR_OUTPUT;
370 ppiOutput->pFilter = (IBaseFilter*)This;
371 wsprintfW(ppiOutput->achName, wszAudioStream);
373 pamt->formattype = FORMAT_WaveFormatEx;
374 pamt->majortype = MEDIATYPE_Audio;
375 pamt->subtype = MEDIASUBTYPE_MPEG1AudioPayload;
377 pamt->lSampleSize = 0;
378 pamt->bFixedSizeSamples = FALSE;
379 pamt->bTemporalCompression = 0;
381 mpeg1 = (header[1]>>4)&0x1;
383 lsf = ((header[1]>>3)&0x1)^1;
385 layer = 4-((header[1]>>1)&0x3);
386 bitrate_index = ((header[2]>>4)&0xf);
387 freq_index = ((header[2]>>2)&0x3) + (mpeg1?(lsf*3):6);
388 mode = ((header[3]>>6)&0x3);
389 mode_ext = ((header[3]>>4)&0x3);
390 emphasis = ((header[3]>>0)&0x3);
394 /* Set to highest bitrate so samples will fit in for sure */
395 FIXME("Variable-bitrate audio not fully supported.\n");
399 pamt->cbFormat = ((layer==3)? sizeof(MPEGLAYER3WAVEFORMAT) :
400 sizeof(MPEG1WAVEFORMAT));
401 pamt->pbFormat = CoTaskMemAlloc(pamt->cbFormat);
403 return E_OUTOFMEMORY;
404 ZeroMemory(pamt->pbFormat, pamt->cbFormat);
405 format = (WAVEFORMATEX*)pamt->pbFormat;
407 format->wFormatTag = ((layer == 3) ? WAVE_FORMAT_MPEGLAYER3 :
409 format->nChannels = ((mode == 3) ? 1 : 2);
410 format->nSamplesPerSec = freqs[freq_index];
411 format->nAvgBytesPerSec = tabsel_123[lsf][layer-1][bitrate_index] * 1000 / 8;
414 format->nBlockAlign = format->nAvgBytesPerSec * 8 * 144 /
415 (format->nSamplesPerSec<<lsf) + 1;
417 format->nBlockAlign = format->nAvgBytesPerSec * 8 * 144 /
418 format->nSamplesPerSec + 1;
420 format->nBlockAlign = 4 * (format->nAvgBytesPerSec * 8 * 12 / format->nSamplesPerSec + 1);
422 format->wBitsPerSample = 0;
426 MPEGLAYER3WAVEFORMAT *mp3format = (MPEGLAYER3WAVEFORMAT*)format;
428 format->cbSize = MPEGLAYER3_WFX_EXTRA_BYTES;
430 mp3format->wID = MPEGLAYER3_ID_MPEG;
431 mp3format->fdwFlags = MPEGLAYER3_FLAG_PADDING_ON;
432 mp3format->nBlockSize = format->nBlockAlign;
433 mp3format->nFramesPerBlock = 1;
435 /* Beware the evil magic numbers. This struct is apparently horribly
436 * under-documented, and the only references I could find had it being
437 * set to this with no real explanation. It works fine though, so I'm
438 * not complaining (yet).
440 mp3format->nCodecDelay = 1393;
444 MPEG1WAVEFORMAT *mpgformat = (MPEG1WAVEFORMAT*)format;
448 mpgformat->fwHeadLayer = ((layer == 1) ? ACM_MPEG_LAYER1 :
449 ((layer == 2) ? ACM_MPEG_LAYER2 :
451 mpgformat->dwHeadBitrate = format->nAvgBytesPerSec * 8;
452 mpgformat->fwHeadMode = ((mode == 3) ? ACM_MPEG_SINGLECHANNEL :
453 ((mode == 2) ? ACM_MPEG_DUALCHANNEL :
454 ((mode == 1) ? ACM_MPEG_JOINTSTEREO :
456 mpgformat->fwHeadModeExt = ((mode == 1) ? 0x0F : (1<<mode_ext));
457 mpgformat->wHeadEmphasis = emphasis + 1;
458 mpgformat->fwHeadFlags = ACM_MPEG_ID_MPEG1;
460 pamt->subtype.Data1 = format->wFormatTag;
462 TRACE("MPEG audio stream detected:\n"
465 "\tChannels: %d (%d)\n"
466 "\tBytesPerSec: %d\n",
467 layer, format->wFormatTag, format->nSamplesPerSec,
468 format->nChannels, mode, format->nAvgBytesPerSec);
470 dump_AM_MEDIA_TYPE(pamt);
476 static HRESULT MPEGSplitter_pre_connect(IPin *iface, IPin *pConnectPin, ALLOCATOR_PROPERTIES *props)
478 PullPin *pPin = (PullPin *)iface;
479 MPEGSplitterImpl *This = (MPEGSplitterImpl*)pPin->pin.pinInfo.pFilter;
481 LONGLONG pos = 0; /* in bytes */
484 LONGLONG total, avail;
488 IAsyncReader_Length(pPin->pReader, &total, &avail);
489 This->EndOfFile = total;
491 hr = IAsyncReader_SyncRead(pPin->pReader, pos, 4, header);
495 /* Skip ID3 v2 tag, if any */
496 if (SUCCEEDED(hr) && !memcmp("ID3", header, 3))
499 hr = IAsyncReader_SyncRead(pPin->pReader, pos, 6, header + 4);
503 TRACE("Found ID3 v2.%d.%d\n", header[3], header[4]);
504 length = (header[6] & 0x7F) << 21;
505 length += (header[7] & 0x7F) << 14;
506 length += (header[8] & 0x7F) << 7;
507 length += (header[9] & 0x7F);
508 TRACE("Length: %u\n", length);
511 /* Read the real header for the mpeg splitter */
512 hr = IAsyncReader_SyncRead(pPin->pReader, pos, 4, header);
515 TRACE("%x:%x:%x:%x\n", header[0], header[1], header[2], header[3]);
518 while(SUCCEEDED(hr) && !(streamtype=MPEGSplitter_head_check(header)))
520 TRACE("%x:%x:%x:%x\n", header[0], header[1], header[2], header[3]);
521 /* No valid header yet; shift by a byte and check again */
522 memmove(header, header+1, 3);
523 hr = IAsyncReader_SyncRead(pPin->pReader, pos++, 1, header + 3);
528 This->begin_offset = pos;
529 memcpy(This->header, header, 4);
531 This->seektable[0].bytepos = pos;
532 This->seektable[0].timepos = 0;
536 case MPEG_AUDIO_HEADER:
538 LONGLONG duration = 0;
539 DWORD last_entry = 0;
541 DWORD ticks = GetTickCount();
543 hr = MPEGSplitter_init_audio(This, header, &piOutput, &amt);
546 WAVEFORMATEX *format = (WAVEFORMATEX*)amt.pbFormat;
550 /* Make the output buffer a multiple of the frame size */
551 props->cbBuffer = 0x4000 / format->nBlockAlign *
554 hr = Parser_AddPin(&(This->Parser), &piOutput, props, &amt);
560 CoTaskMemFree(amt.pbFormat);
561 ERR("Could not create pin for MPEG audio stream (%x)\n", hr);
565 /* Check for idv1 tag, and remove it from stream if found */
566 hr = IAsyncReader_SyncRead(pPin->pReader, This->EndOfFile-128, 3, header+4);
569 if (!strncmp((char*)header+4, "TAG", 3))
570 This->EndOfFile -= 128;
571 This->Parser.pInputPin->rtStop = MEDIATIME_FROM_BYTES(This->EndOfFile);
572 This->Parser.pInputPin->rtStart = This->Parser.pInputPin->rtCurrent = MEDIATIME_FROM_BYTES(This->begin_offset);
574 /* http://mpgedit.org/mpgedit/mpeg_format/mpeghdr.htm has a whole read up on audio headers */
575 while (pos + 3 < This->EndOfFile)
578 hr = IAsyncReader_SyncRead(pPin->pReader, pos, 4, header);
581 while (parse_header(header, &length, &duration))
583 /* No valid header yet; shift by a byte and check again */
584 memmove(header, header+1, 3);
585 hr = IAsyncReader_SyncRead(pPin->pReader, pos++, 1, header + 3);
586 if (hr != S_OK || This->EndOfFile - pos < 4)
591 if (This->seektable && (duration / SEEK_INTERVAL) > last_entry)
593 if (last_entry + 1 > duration / SEEK_INTERVAL)
595 ERR("Somehow skipped %d interval lengths instead of 1\n", (DWORD)(duration/SEEK_INTERVAL) - (last_entry + 1));
599 TRACE("Entry: %u\n", last_entry);
600 if (last_entry >= This->seek_entries)
602 This->seek_entries += 64;
603 This->seektable = CoTaskMemRealloc(This->seektable, (This->seek_entries)*sizeof(struct seek_entry));
605 This->seektable[last_entry].bytepos = pos;
606 This->seektable[last_entry].timepos = duration;
609 TRACE("Pos: %x%08x/%x%08x\n", (DWORD)(pos >> 32), (DWORD)pos, (DWORD)(This->EndOfFile>>32), (DWORD)This->EndOfFile);
612 TRACE("Duration: %d seconds\n", (DWORD)(duration / 10000000));
613 TRACE("Parsing took %u ms\n", GetTickCount() - ticks);
614 This->duration = duration;
616 This->Parser.sourceSeeking.llCurrent = 0;
617 This->Parser.sourceSeeking.llDuration = duration;
618 This->Parser.sourceSeeking.llStop = duration;
621 case MPEG_VIDEO_HEADER:
622 FIXME("MPEG video processing not yet supported!\n");
625 case MPEG_SYSTEM_HEADER:
626 FIXME("MPEG system streams not yet supported!\n");
638 static HRESULT MPEGSplitter_cleanup(LPVOID iface)
640 MPEGSplitterImpl *This = iface;
642 TRACE("(%p)\n", This);
647 static HRESULT WINAPI MPEGSplitter_seek(IMediaSeeking *iface)
649 MPEGSplitterImpl *This = impl_from_IMediaSeeking(iface);
650 PullPin *pPin = This->Parser.pInputPin;
651 LONGLONG newpos, timepos, bytepos;
655 newpos = This->Parser.sourceSeeking.llCurrent;
657 if (newpos > This->duration)
659 WARN("Requesting position %x%08x beyond end of stream %x%08x\n", (DWORD)(newpos>>32), (DWORD)newpos, (DWORD)(This->duration>>32), (DWORD)This->duration);
663 if (This->position/1000000 == newpos/1000000)
665 TRACE("Requesting position %x%08x same as current position %x%08x\n", (DWORD)(newpos>>32), (DWORD)newpos, (DWORD)(This->position>>32), (DWORD)This->position);
669 /* Position, cached */
670 bytepos = This->seektable[newpos / SEEK_INTERVAL].bytepos;
671 timepos = This->seektable[newpos / SEEK_INTERVAL].timepos;
673 hr = IAsyncReader_SyncRead(pPin->pReader, bytepos, 4, header);
674 while (bytepos + 3 < This->EndOfFile)
677 hr = IAsyncReader_SyncRead(pPin->pReader, bytepos, 4, header);
678 if (hr != S_OK || timepos >= newpos)
681 while (parse_header(header, &length, &timepos) && bytepos + 3 < This->EndOfFile)
683 /* No valid header yet; shift by a byte and check again */
684 memmove(header, header+1, 3);
685 hr = IAsyncReader_SyncRead(pPin->pReader, ++bytepos, 1, header + 3);
690 TRACE("Pos: %x%08x/%x%08x\n", (DWORD)(bytepos >> 32), (DWORD)bytepos, (DWORD)(This->EndOfFile>>32), (DWORD)This->EndOfFile);
695 PullPin *pin = This->Parser.pInputPin;
697 TRACE("Moving sound to %08u bytes!\n", (DWORD)bytepos);
699 EnterCriticalSection(&pin->thread_lock);
700 IPin_BeginFlush((IPin *)pin);
702 /* Make sure this is done while stopped, BeginFlush takes care of this */
703 EnterCriticalSection(&This->Parser.filter.csFilter);
704 memcpy(This->header, header, 4);
706 pin->rtStart = pin->rtCurrent = MEDIATIME_FROM_BYTES(bytepos);
707 pin->rtStop = MEDIATIME_FROM_BYTES((REFERENCE_TIME)This->EndOfFile);
709 This->position = newpos;
710 LeaveCriticalSection(&This->Parser.filter.csFilter);
712 TRACE("Done flushing\n");
713 IPin_EndFlush((IPin *)pin);
714 LeaveCriticalSection(&pin->thread_lock);
719 static HRESULT MPEGSplitter_disconnect(LPVOID iface)
721 /* TODO: Find memory leaks etc */
725 static HRESULT MPEGSplitter_first_request(LPVOID iface)
727 MPEGSplitterImpl *This = iface;
728 PullPin *pin = This->Parser.pInputPin;
731 IMediaSample *sample;
733 TRACE("Seeking? %d\n", This->seek);
734 assert(parse_header(This->header, &length, NULL) == S_OK);
736 if (pin->rtCurrent >= pin->rtStop)
738 /* Last sample has already been queued, request nothing more */
743 hr = IMemAllocator_GetBuffer(pin->pAlloc, &sample, NULL, NULL, 0);
745 pin->rtNext = pin->rtCurrent;
748 LONGLONG rtSampleStart = pin->rtNext;
749 /* Add 4 for the next header, which should hopefully work */
750 LONGLONG rtSampleStop = rtSampleStart + MEDIATIME_FROM_BYTES(length + 4);
752 if (rtSampleStop > pin->rtStop)
753 rtSampleStop = MEDIATIME_FROM_BYTES(ALIGNUP(BYTES_FROM_MEDIATIME(pin->rtStop), pin->cbAlign));
755 hr = IMediaSample_SetTime(sample, &rtSampleStart, &rtSampleStop);
757 pin->rtCurrent = pin->rtNext;
758 pin->rtNext = rtSampleStop;
760 IMediaSample_SetPreroll(sample, FALSE);
761 IMediaSample_SetDiscontinuity(sample, TRUE);
762 IMediaSample_SetSyncPoint(sample, 1);
765 hr = IAsyncReader_Request(pin->pReader, sample, 0);
768 ERR("Horsemen of the apocalypse came to bring error 0x%08x\n", hr);
773 static const IBaseFilterVtbl MPEGSplitter_Vtbl =
775 Parser_QueryInterface,
783 Parser_SetSyncSource,
784 Parser_GetSyncSource,
787 Parser_QueryFilterInfo,
788 Parser_JoinFilterGraph,
789 Parser_QueryVendorInfo
792 HRESULT MPEGSplitter_create(IUnknown * pUnkOuter, LPVOID * ppv)
794 MPEGSplitterImpl *This;
797 TRACE("(%p, %p)\n", pUnkOuter, ppv);
802 return CLASS_E_NOAGGREGATION;
804 This = CoTaskMemAlloc(sizeof(MPEGSplitterImpl));
806 return E_OUTOFMEMORY;
808 ZeroMemory(This, sizeof(MPEGSplitterImpl));
809 This->seektable = CoTaskMemAlloc(sizeof(struct seek_entry) * 64);
810 if (!This->seektable)
813 return E_OUTOFMEMORY;
815 This->seek_entries = 64;
817 hr = Parser_Create(&(This->Parser), &MPEGSplitter_Vtbl, &CLSID_MPEG1Splitter, MPEGSplitter_process_sample, MPEGSplitter_query_accept, MPEGSplitter_pre_connect, MPEGSplitter_cleanup, MPEGSplitter_disconnect, MPEGSplitter_first_request, NULL, NULL, MPEGSplitter_seek, NULL);
825 /* Note: This memory is managed by the parser filter once created */