543 lines
18 KiB
C
543 lines
18 KiB
C
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/*
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* MPEG Splitter Filter
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*
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* Copyright 2003 Robert Shearman
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* Copyright 2004-2005 Christian Costa
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* Copyright 2007 Chris Robinson
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <assert.h>
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#include <math.h>
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#include "quartz_private.h"
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#include "control_private.h"
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#include "pin.h"
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#include "uuids.h"
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#include "mmreg.h"
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#include "mmsystem.h"
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#include "winternl.h"
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#include "wine/unicode.h"
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#include "wine/debug.h"
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#include "parser.h"
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WINE_DEFAULT_DEBUG_CHANNEL(quartz);
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#define SEQUENCE_HEADER_CODE 0xB3
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#define PACK_START_CODE 0xBA
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#define SYSTEM_START_CODE 0xBB
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#define AUDIO_ELEMENTARY_STREAM 0xC0
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#define VIDEO_ELEMENTARY_STREAM 0xE0
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#define MPEG_SYSTEM_HEADER 3
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#define MPEG_VIDEO_HEADER 2
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#define MPEG_AUDIO_HEADER 1
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#define MPEG_NO_HEADER 0
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typedef struct MPEGSplitterImpl
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{
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ParserImpl Parser;
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IMediaSample *pCurrentSample;
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LONGLONG EndOfFile;
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} MPEGSplitterImpl;
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static int MPEGSplitter_head_check(const BYTE *header)
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{
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/* If this is a possible start code, check for a system or video header */
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if (header[0] == 0 && header[1] == 0 && header[2] == 1)
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{
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/* Check if we got a system or elementary stream start code */
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if (header[3] == PACK_START_CODE ||
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header[3] == VIDEO_ELEMENTARY_STREAM ||
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header[3] == AUDIO_ELEMENTARY_STREAM)
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return MPEG_SYSTEM_HEADER;
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/* Check for a MPEG video sequence start code */
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if (header[3] == SEQUENCE_HEADER_CODE)
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return MPEG_VIDEO_HEADER;
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}
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/* This should give a good guess if we have an MPEG audio header */
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if(header[0] == 0xff && ((header[1]>>5)&0x7) == 0x7 &&
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((header[1]>>1)&0x3) != 0 && ((header[2]>>4)&0xf) != 0xf &&
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((header[2]>>2)&0x3) != 0x3)
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return MPEG_AUDIO_HEADER;
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/* Nothing yet.. */
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return MPEG_NO_HEADER;
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}
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static HRESULT MPEGSplitter_process_sample(LPVOID iface, IMediaSample * pSample)
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{
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MPEGSplitterImpl *This = (MPEGSplitterImpl*)iface;
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LPBYTE pbSrcStream = NULL;
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DWORD cbSrcStream = 0;
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DWORD used_bytes = 0;
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REFERENCE_TIME tStart, tStop;
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HRESULT hr;
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BYTE *pbDstStream;
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DWORD cbDstStream;
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long remaining_bytes = 0;
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Parser_OutputPin * pOutputPin;
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DWORD bytes_written = 0;
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pOutputPin = (Parser_OutputPin*)This->Parser.ppPins[1];
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hr = IMediaSample_GetTime(pSample, &tStart, &tStop);
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if (SUCCEEDED(hr))
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{
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cbSrcStream = IMediaSample_GetActualDataLength(pSample);
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hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
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}
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/* trace removed for performance reasons */
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/* TRACE("(%p), %llu -> %llu\n", pSample, tStart, tStop); */
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if (This->pCurrentSample)
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bytes_written = IMediaSample_GetActualDataLength(This->pCurrentSample);
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while (hr == S_OK && used_bytes < cbSrcStream)
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{
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remaining_bytes = (long)(This->EndOfFile - BYTES_FROM_MEDIATIME(tStart) - used_bytes);
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if (remaining_bytes <= 0)
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break;
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if (!This->pCurrentSample)
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{
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/* cache media sample until it is ready to be despatched
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* (i.e. we reach the end of the chunk) */
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hr = OutputPin_GetDeliveryBuffer(&pOutputPin->pin, &This->pCurrentSample, NULL, NULL, 0);
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if (FAILED(hr))
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{
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TRACE("Skipping sending sample due to error (%x)\n", hr);
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This->pCurrentSample = NULL;
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break;
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}
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IMediaSample_SetTime(This->pCurrentSample, NULL, NULL);
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hr = IMediaSample_SetActualDataLength(This->pCurrentSample, 0);
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assert(hr == S_OK);
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bytes_written = 0;
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}
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hr = IMediaSample_GetPointer(This->pCurrentSample, &pbDstStream);
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if (SUCCEEDED(hr))
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{
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cbDstStream = IMediaSample_GetSize(This->pCurrentSample);
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remaining_bytes = min(remaining_bytes, (long)(cbDstStream - bytes_written));
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assert(remaining_bytes >= 0);
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/* trace removed for performance reasons */
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/* TRACE("remaining_bytes: %d, cbSrcStream: 0x%x\n", remaining_bytes, cbSrcStream); */
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}
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if (remaining_bytes <= (long)(cbSrcStream-used_bytes))
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{
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if (SUCCEEDED(hr))
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{
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memcpy(pbDstStream + bytes_written, pbSrcStream + used_bytes, remaining_bytes);
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bytes_written += remaining_bytes;
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hr = IMediaSample_SetActualDataLength(This->pCurrentSample, bytes_written);
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assert(hr == S_OK);
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used_bytes += remaining_bytes;
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}
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if (SUCCEEDED(hr))
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{
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REFERENCE_TIME tMPEGStart, tMPEGStop;
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pOutputPin->dwSamplesProcessed = (BYTES_FROM_MEDIATIME(tStart)+used_bytes) / pOutputPin->dwSampleSize;
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tMPEGStart = (tStart + MEDIATIME_FROM_BYTES(used_bytes-bytes_written)) /
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(pOutputPin->fSamplesPerSec*pOutputPin->dwSampleSize);
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tMPEGStop = (tStart + MEDIATIME_FROM_BYTES(used_bytes)) /
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(pOutputPin->fSamplesPerSec*pOutputPin->dwSampleSize);
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/* If the start of the sample has a valid MPEG header, it's a
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* sync point */
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if (MPEGSplitter_head_check(pbDstStream) == MPEG_AUDIO_HEADER)
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IMediaSample_SetSyncPoint(This->pCurrentSample, TRUE);
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else
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IMediaSample_SetSyncPoint(This->pCurrentSample, FALSE);
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IMediaSample_SetTime(This->pCurrentSample, &tMPEGStart, &tMPEGStop);
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hr = OutputPin_SendSample(&pOutputPin->pin, This->pCurrentSample);
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if (FAILED(hr))
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WARN("Error sending sample (%x)\n", hr);
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}
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if (This->pCurrentSample)
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IMediaSample_Release(This->pCurrentSample);
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This->pCurrentSample = NULL;
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}
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else
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{
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if (SUCCEEDED(hr))
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{
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memcpy(pbDstStream + bytes_written, pbSrcStream + used_bytes, cbSrcStream - used_bytes);
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bytes_written += cbSrcStream - used_bytes;
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IMediaSample_SetActualDataLength(This->pCurrentSample, bytes_written);
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used_bytes += cbSrcStream - used_bytes;
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}
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}
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}
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if (BYTES_FROM_MEDIATIME(tStop) >= This->EndOfFile)
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{
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int i;
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TRACE("End of file reached (%d out of %d bytes used)\n", used_bytes, cbSrcStream);
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if (This->pCurrentSample)
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{
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/* Make sure the last bit of data, if any, is sent */
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if (IMediaSample_GetActualDataLength(This->pCurrentSample) > 0)
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{
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REFERENCE_TIME tMPEGStart, tMPEGStop;
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pOutputPin->dwSamplesProcessed = (BYTES_FROM_MEDIATIME(tStart)+used_bytes) / pOutputPin->dwSampleSize;
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tMPEGStart = (tStart + MEDIATIME_FROM_BYTES(used_bytes-bytes_written)) /
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(pOutputPin->fSamplesPerSec*pOutputPin->dwSampleSize);
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tMPEGStop = (tStart + MEDIATIME_FROM_BYTES(used_bytes)) /
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(pOutputPin->fSamplesPerSec*pOutputPin->dwSampleSize);
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if (MPEGSplitter_head_check(pbDstStream) == MPEG_AUDIO_HEADER)
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IMediaSample_SetSyncPoint(This->pCurrentSample, TRUE);
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else
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IMediaSample_SetSyncPoint(This->pCurrentSample, FALSE);
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IMediaSample_SetTime(This->pCurrentSample, &tMPEGStart, &tMPEGStop);
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hr = OutputPin_SendSample(&pOutputPin->pin, This->pCurrentSample);
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if (FAILED(hr))
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WARN("Error sending sample (%x)\n", hr);
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}
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IMediaSample_Release(This->pCurrentSample);
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}
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This->pCurrentSample = NULL;
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for (i = 0; i < This->Parser.cStreams; i++)
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{
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IPin* ppin;
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HRESULT hr;
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TRACE("Send End Of Stream to output pin %d\n", i);
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hr = IPin_ConnectedTo(This->Parser.ppPins[i+1], &ppin);
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if (SUCCEEDED(hr))
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{
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hr = IPin_EndOfStream(ppin);
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IPin_Release(ppin);
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}
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if (FAILED(hr))
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WARN("Error sending EndOfStream to pin %d (%x)\n", i, hr);
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}
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/* Force the pullpin thread to stop */
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hr = S_FALSE;
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}
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return hr;
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}
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static HRESULT MPEGSplitter_query_accept(LPVOID iface, const AM_MEDIA_TYPE *pmt)
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{
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if (!IsEqualIID(&pmt->majortype, &MEDIATYPE_Stream))
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return S_FALSE;
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if (IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_MPEG1Audio))
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return S_OK;
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if (IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_MPEG1Video))
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FIXME("MPEG-1 video streams not yet supported.\n");
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else if (IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_MPEG1System))
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FIXME("MPEG-1 system streams not yet supported.\n");
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else if (IsEqualIID(&pmt->subtype, &MEDIASUBTYPE_MPEG1VideoCD))
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FIXME("MPEG-1 VideoCD streams not yet supported.\n");
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return S_FALSE;
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}
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static const WCHAR wszAudioStream[] = {'A','u','d','i','o',0};
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static const WCHAR wszVideoStream[] = {'V','i','d','e','o',0};
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static HRESULT MPEGSplitter_init_audio(MPEGSplitterImpl *This, const BYTE *header, PIN_INFO *ppiOutput, AM_MEDIA_TYPE *pamt)
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{
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static const DWORD freqs[10] = { 44100, 48000, 32000, 22050, 24000,
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16000, 11025, 12000, 8000, 0 };
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static const DWORD tabsel_123[2][3][16] = {
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{ {0,32,64,96,128,160,192,224,256,288,320,352,384,416,448,},
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{0,32,48,56, 64, 80, 96,112,128,160,192,224,256,320,384,},
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{0,32,40,48, 56, 64, 80, 96,112,128,160,192,224,256,320,} },
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{ {0,32,48,56,64,80,96,112,128,144,160,176,192,224,256,},
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{0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,},
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{0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,} }
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};
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WAVEFORMATEX *format;
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int bitrate_index;
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int freq_index;
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int mode_ext;
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int emphasis;
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int padding;
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int lsf = 1;
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int mpeg1;
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int layer;
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int mode;
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ZeroMemory(pamt, sizeof(*pamt));
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ppiOutput->dir = PINDIR_OUTPUT;
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ppiOutput->pFilter = (IBaseFilter*)This;
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wsprintfW(ppiOutput->achName, wszAudioStream);
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memcpy(&pamt->formattype, &FORMAT_WaveFormatEx, sizeof(GUID));
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memcpy(&pamt->majortype, &MEDIATYPE_Audio, sizeof(GUID));
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memcpy(&pamt->subtype, &MEDIASUBTYPE_MPEG1AudioPayload, sizeof(GUID));
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pamt->lSampleSize = 0;
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pamt->bFixedSizeSamples = TRUE;
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pamt->bTemporalCompression = 0;
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mpeg1 = (header[1]>>4)&0x1;
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if (mpeg1)
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lsf = ((header[1]>>3)&0x1)^1;
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layer = 4-((header[1]>>1)&0x3);
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bitrate_index = ((header[2]>>4)&0xf);
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freq_index = ((header[2]>>2)&0x3) + (mpeg1?(lsf*3):6);
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padding = ((header[2]>>1)&0x1);
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mode = ((header[3]>>6)&0x3);
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mode_ext = ((header[3]>>4)&0x3);
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emphasis = ((header[3]>>0)&0x3);
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pamt->cbFormat = ((layer==3)? sizeof(MPEGLAYER3WAVEFORMAT) :
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sizeof(MPEG1WAVEFORMAT));
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pamt->pbFormat = CoTaskMemAlloc(pamt->cbFormat);
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if (!pamt->pbFormat)
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return E_OUTOFMEMORY;
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ZeroMemory(pamt->pbFormat, pamt->cbFormat);
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format = (WAVEFORMATEX*)pamt->pbFormat;
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format->wFormatTag = ((layer == 3) ? WAVE_FORMAT_MPEGLAYER3 :
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WAVE_FORMAT_MPEG);
|
||
|
|
format->nChannels = ((mode == 3) ? 1 : 2);
|
||
|
|
format->nSamplesPerSec = freqs[freq_index];
|
||
|
|
format->nAvgBytesPerSec = tabsel_123[lsf][layer-1][bitrate_index] * 1000 / 8;
|
||
|
|
if (format->nAvgBytesPerSec == 0)
|
||
|
|
{
|
||
|
|
WARN("Variable-bitrate audio is not supported.\n");
|
||
|
|
return E_FAIL;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (layer == 3)
|
||
|
|
format->nBlockAlign = format->nAvgBytesPerSec * 8 * 144 /
|
||
|
|
(format->nSamplesPerSec<<lsf) +
|
||
|
|
(padding - 4);
|
||
|
|
else if (layer == 2)
|
||
|
|
format->nBlockAlign = format->nAvgBytesPerSec * 8 * 144 /
|
||
|
|
format->nSamplesPerSec + (padding - 4);
|
||
|
|
else
|
||
|
|
format->nBlockAlign = ((format->nAvgBytesPerSec * 8 * 12 /
|
||
|
|
format->nSamplesPerSec + padding) << 2) - 4;
|
||
|
|
|
||
|
|
format->wBitsPerSample = 0;
|
||
|
|
|
||
|
|
if (layer == 3)
|
||
|
|
{
|
||
|
|
MPEGLAYER3WAVEFORMAT *mp3format = (MPEGLAYER3WAVEFORMAT*)format;
|
||
|
|
|
||
|
|
format->cbSize = MPEGLAYER3_WFX_EXTRA_BYTES;
|
||
|
|
|
||
|
|
mp3format->wID = MPEGLAYER3_ID_MPEG;
|
||
|
|
mp3format->fdwFlags = (padding ?
|
||
|
|
MPEGLAYER3_FLAG_PADDING_OFF :
|
||
|
|
MPEGLAYER3_FLAG_PADDING_ON);
|
||
|
|
mp3format->nBlockSize = format->nBlockAlign;
|
||
|
|
mp3format->nFramesPerBlock = 1;
|
||
|
|
|
||
|
|
/* Beware the evil magic numbers. This struct is apparently horribly
|
||
|
|
* under-documented, and the only references I could find had it being
|
||
|
|
* set to this with no real explanation. It works fine though, so I'm
|
||
|
|
* not complaining (yet).
|
||
|
|
*/
|
||
|
|
mp3format->nCodecDelay = 1393;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
MPEG1WAVEFORMAT *mpgformat = (MPEG1WAVEFORMAT*)format;
|
||
|
|
|
||
|
|
format->cbSize = 22;
|
||
|
|
|
||
|
|
mpgformat->fwHeadLayer = ((layer == 1) ? ACM_MPEG_LAYER1 :
|
||
|
|
((layer == 2) ? ACM_MPEG_LAYER2 :
|
||
|
|
ACM_MPEG_LAYER3));
|
||
|
|
mpgformat->dwHeadBitrate = format->nAvgBytesPerSec * 8;
|
||
|
|
mpgformat->fwHeadMode = ((mode == 3) ? ACM_MPEG_SINGLECHANNEL :
|
||
|
|
((mode == 2) ? ACM_MPEG_DUALCHANNEL :
|
||
|
|
((mode == 1) ? ACM_MPEG_JOINTSTEREO :
|
||
|
|
ACM_MPEG_STEREO)));
|
||
|
|
mpgformat->fwHeadModeExt = ((mode == 1) ? 0x0F : (1<<mode_ext));
|
||
|
|
mpgformat->wHeadEmphasis = emphasis + 1;
|
||
|
|
mpgformat->fwHeadFlags = ACM_MPEG_ID_MPEG1;
|
||
|
|
}
|
||
|
|
pamt->subtype.Data1 = format->wFormatTag;
|
||
|
|
|
||
|
|
TRACE("MPEG audio stream detected:\n"
|
||
|
|
"\tLayer %d (%#x)\n"
|
||
|
|
"\tFrequency: %d\n"
|
||
|
|
"\tChannels: %d (%d)\n"
|
||
|
|
"\tBytesPerSec: %d\n",
|
||
|
|
layer, format->wFormatTag, format->nSamplesPerSec,
|
||
|
|
format->nChannels, mode, format->nAvgBytesPerSec);
|
||
|
|
|
||
|
|
dump_AM_MEDIA_TYPE(pamt);
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static HRESULT MPEGSplitter_pre_connect(IPin *iface, IPin *pConnectPin)
|
||
|
|
{
|
||
|
|
PullPin *pPin = (PullPin *)iface;
|
||
|
|
MPEGSplitterImpl *This = (MPEGSplitterImpl*)pPin->pin.pinInfo.pFilter;
|
||
|
|
ALLOCATOR_PROPERTIES props;
|
||
|
|
HRESULT hr;
|
||
|
|
LONGLONG pos = 0; /* in bytes */
|
||
|
|
BYTE header[4];
|
||
|
|
int streamtype = 0;
|
||
|
|
LONGLONG total, avail;
|
||
|
|
AM_MEDIA_TYPE amt;
|
||
|
|
PIN_INFO piOutput;
|
||
|
|
|
||
|
|
IAsyncReader_Length(pPin->pReader, &total, &avail);
|
||
|
|
This->EndOfFile = total;
|
||
|
|
|
||
|
|
hr = IAsyncReader_SyncRead(pPin->pReader, pos, 4, (LPVOID)&header[0]);
|
||
|
|
if (SUCCEEDED(hr))
|
||
|
|
pos += 4;
|
||
|
|
|
||
|
|
while(SUCCEEDED(hr) && !(streamtype=MPEGSplitter_head_check(header)))
|
||
|
|
{
|
||
|
|
/* No valid header yet; shift by a byte and check again */
|
||
|
|
memcpy(header, header+1, 3);
|
||
|
|
hr = IAsyncReader_SyncRead(pPin->pReader, pos++, 1, (LPVOID)&header[3]);
|
||
|
|
}
|
||
|
|
if (FAILED(hr))
|
||
|
|
return hr;
|
||
|
|
|
||
|
|
switch(streamtype)
|
||
|
|
{
|
||
|
|
case MPEG_AUDIO_HEADER:
|
||
|
|
hr = MPEGSplitter_init_audio(This, header, &piOutput, &amt);
|
||
|
|
if (SUCCEEDED(hr))
|
||
|
|
{
|
||
|
|
WAVEFORMATEX *format = (WAVEFORMATEX*)amt.pbFormat;
|
||
|
|
|
||
|
|
props.cbAlign = 1;
|
||
|
|
props.cbPrefix = 0;
|
||
|
|
/* Make the output buffer a multiple of the frame size */
|
||
|
|
props.cbBuffer = 0x4000 / format->nBlockAlign *
|
||
|
|
format->nBlockAlign;
|
||
|
|
props.cBuffers = 1;
|
||
|
|
|
||
|
|
hr = Parser_AddPin(&(This->Parser), &piOutput, &props, &amt,
|
||
|
|
(float)format->nAvgBytesPerSec /
|
||
|
|
(float)format->nBlockAlign,
|
||
|
|
format->nBlockAlign,
|
||
|
|
total);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (FAILED(hr))
|
||
|
|
{
|
||
|
|
if (amt.pbFormat)
|
||
|
|
CoTaskMemFree(amt.pbFormat);
|
||
|
|
ERR("Could not create pin for MPEG audio stream (%x)\n", hr);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case MPEG_VIDEO_HEADER:
|
||
|
|
FIXME("MPEG video processing not yet supported!\n");
|
||
|
|
hr = E_FAIL;
|
||
|
|
break;
|
||
|
|
case MPEG_SYSTEM_HEADER:
|
||
|
|
FIXME("MPEG system streams not yet supported!\n");
|
||
|
|
hr = E_FAIL;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
static HRESULT MPEGSplitter_cleanup(LPVOID iface)
|
||
|
|
{
|
||
|
|
MPEGSplitterImpl *This = (MPEGSplitterImpl*)iface;
|
||
|
|
|
||
|
|
TRACE("(%p)->()\n", This);
|
||
|
|
|
||
|
|
if (This->pCurrentSample)
|
||
|
|
IMediaSample_Release(This->pCurrentSample);
|
||
|
|
This->pCurrentSample = NULL;
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
HRESULT MPEGSplitter_create(IUnknown * pUnkOuter, LPVOID * ppv)
|
||
|
|
{
|
||
|
|
MPEGSplitterImpl *This;
|
||
|
|
HRESULT hr = E_FAIL;
|
||
|
|
|
||
|
|
TRACE("(%p, %p)\n", pUnkOuter, ppv);
|
||
|
|
|
||
|
|
*ppv = NULL;
|
||
|
|
|
||
|
|
if (pUnkOuter)
|
||
|
|
return CLASS_E_NOAGGREGATION;
|
||
|
|
|
||
|
|
This = CoTaskMemAlloc(sizeof(MPEGSplitterImpl));
|
||
|
|
if (!This)
|
||
|
|
return E_OUTOFMEMORY;
|
||
|
|
|
||
|
|
ZeroMemory(This, sizeof(MPEGSplitterImpl));
|
||
|
|
hr = Parser_Create(&(This->Parser), &CLSID_MPEG1Splitter, MPEGSplitter_process_sample, MPEGSplitter_query_accept, MPEGSplitter_pre_connect, MPEGSplitter_cleanup);
|
||
|
|
if (FAILED(hr))
|
||
|
|
{
|
||
|
|
CoTaskMemFree(This);
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Note: This memory is managed by the parser filter once created */
|
||
|
|
*ppv = (LPVOID)This;
|
||
|
|
|
||
|
|
return hr;
|
||
|
|
}
|