2 * AVI Decompressor (VFW decompressors wrapper)
4 * Copyright 2004-2005 Christian Costa
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 #include "quartz_private.h"
37 #include "wine/unicode.h"
38 #include "wine/debug.h"
40 #include "transform.h"
42 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
44 static HRESULT AVIDec_Cleanup(TransformFilterImpl* pTransformFilter);
46 typedef struct AVIDecImpl
48 TransformFilterImpl tf;
50 BITMAPINFOHEADER* pBihIn;
51 BITMAPINFOHEADER* pBihOut;
54 static HRESULT AVIDec_ProcessBegin(TransformFilterImpl* pTransformFilter)
56 AVIDecImpl* This = (AVIDecImpl*)pTransformFilter;
59 TRACE("(%p)->()\n", This);
61 result = ICDecompressBegin(This->hvid, This->pBihIn, This->pBihOut);
62 if (result != ICERR_OK)
64 ERR("Cannot start processing (%d)\n", result);
70 static HRESULT AVIDec_ProcessSampleData(TransformFilterImpl* pTransformFilter, IMediaSample *pSample)
72 AVIDecImpl* This = (AVIDecImpl*)pTransformFilter;
73 VIDEOINFOHEADER* format;
77 IMediaSample* pOutSample = NULL;
83 hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
86 ERR("Cannot get pointer to sample data (%x)\n", hr);
90 cbSrcStream = IMediaSample_GetActualDataLength(pSample);
92 TRACE("Sample data ptr = %p, size = %ld\n", pbSrcStream, (long)cbSrcStream);
94 hr = IPin_ConnectionMediaType(This->tf.ppPins[0], &amt);
96 ERR("Unable to retrieve media type\n");
99 format = (VIDEOINFOHEADER*)amt.pbFormat;
101 /* Update input size to match sample size */
102 This->pBihIn->biSizeImage = cbSrcStream;
104 hr = OutputPin_GetDeliveryBuffer((OutputPin*)This->tf.ppPins[1], &pOutSample, NULL, NULL, 0);
106 ERR("Unable to get delivery buffer (%x)\n", hr);
110 hr = IMediaSample_SetActualDataLength(pOutSample, 0);
113 hr = IMediaSample_GetPointer(pOutSample, &pbDstStream);
115 ERR("Unable to get pointer to buffer (%x)\n", hr);
118 cbDstStream = IMediaSample_GetSize(pOutSample);
119 if (cbDstStream < This->pBihOut->biSizeImage) {
120 ERR("Sample size is too small %d < %d\n", cbDstStream, This->pBihOut->biSizeImage);
125 res = ICDecompress(This->hvid, 0, This->pBihIn, pbSrcStream, This->pBihOut, pbDstStream);
127 ERR("Error occurred during the decompression (%x)\n", res);
129 hr = OutputPin_SendSample((OutputPin*)This->tf.ppPins[1], pOutSample);
130 if (hr != S_OK && hr != VFW_E_NOT_CONNECTED) {
131 ERR("Error sending sample (%x)\n", hr);
137 IMediaSample_Release(pOutSample);
142 static HRESULT AVIDec_ProcessEnd(TransformFilterImpl* pTransformFilter)
144 AVIDecImpl* This = (AVIDecImpl*)pTransformFilter;
147 TRACE("(%p)->()\n", This);
152 result = ICDecompressEnd(This->hvid);
153 if (result != ICERR_OK)
155 ERR("Cannot stop processing (%d)\n", result);
161 static HRESULT AVIDec_ConnectInput(TransformFilterImpl* pTransformFilter, const AM_MEDIA_TYPE * pmt)
163 AVIDecImpl* This = (AVIDecImpl*)pTransformFilter;
164 HRESULT hr = VFW_E_TYPE_NOT_ACCEPTED;
166 TRACE("(%p)->(%p)\n", This, pmt);
168 AVIDec_Cleanup(pTransformFilter);
170 /* Check root (GUID w/o FOURCC) */
171 if ((IsEqualIID(&pmt->majortype, &MEDIATYPE_Video)) &&
172 (!memcmp(((const char *)&pmt->subtype)+4, ((const char *)&MEDIATYPE_Video)+4, sizeof(GUID)-4)) &&
173 (IsEqualIID(&pmt->formattype, &FORMAT_VideoInfo)))
175 VIDEOINFOHEADER* format = (VIDEOINFOHEADER*)pmt->pbFormat;
177 This->hvid = ICLocate(pmt->majortype.Data1, pmt->subtype.Data1, &format->bmiHeader, NULL, ICMODE_DECOMPRESS);
180 AM_MEDIA_TYPE* outpmt = &((OutputPin*)This->tf.ppPins[1])->pin.mtCurrent;
181 const CLSID* outsubtype;
183 DWORD output_depth = format->bmiHeader.biBitCount;
186 switch(format->bmiHeader.biBitCount)
188 case 32: outsubtype = &MEDIASUBTYPE_RGB32; break;
189 case 24: outsubtype = &MEDIASUBTYPE_RGB24; break;
190 case 16: outsubtype = &MEDIASUBTYPE_RGB565; break;
191 case 8: outsubtype = &MEDIASUBTYPE_RGB8; break;
193 TRACE("Non standard input depth %d, forced ouptut depth to 32\n", format->bmiHeader.biBitCount);
194 outsubtype = &MEDIASUBTYPE_RGB32;
199 /* Copy bitmap header from media type to 1 for input and 1 for output */
200 bih_size = format->bmiHeader.biSize + format->bmiHeader.biClrUsed * 4;
201 This->pBihIn = CoTaskMemAlloc(bih_size);
207 This->pBihOut = CoTaskMemAlloc(bih_size);
213 memcpy(This->pBihIn, &format->bmiHeader, bih_size);
214 memcpy(This->pBihOut, &format->bmiHeader, bih_size);
216 /* Update output format as non compressed bitmap */
217 This->pBihOut->biCompression = 0;
218 This->pBihOut->biBitCount = output_depth;
219 This->pBihOut->biSizeImage = This->pBihOut->biWidth * This->pBihOut->biHeight * This->pBihOut->biBitCount / 8;
221 result = ICDecompressQuery(This->hvid, This->pBihIn, This->pBihOut);
222 if (result != ICERR_OK)
224 TRACE("Unable to found a suitable output format (%d)\n", result);
228 /* Update output media type */
229 CopyMediaType(outpmt, pmt);
230 outpmt->subtype = *outsubtype;
231 memcpy(&(((VIDEOINFOHEADER*)outpmt->pbFormat)->bmiHeader), This->pBihOut, This->pBihOut->biSize);
233 /* Update buffer size of media samples in output */
234 ((OutputPin*)This->tf.ppPins[1])->allocProps.cbBuffer = This->pBihOut->biSizeImage;
236 TRACE("Connection accepted\n");
239 TRACE("Unable to find a suitable VFW decompressor\n");
243 AVIDec_Cleanup(pTransformFilter);
245 TRACE("Connection refused\n");
249 static HRESULT AVIDec_Cleanup(TransformFilterImpl* pTransformFilter)
251 AVIDecImpl* This = (AVIDecImpl*)pTransformFilter;
253 TRACE("(%p)->()\n", This);
258 CoTaskMemFree(This->pBihIn);
260 CoTaskMemFree(This->pBihOut);
264 This->pBihOut = NULL;
269 static const TransformFuncsTable AVIDec_FuncsTable = {
271 AVIDec_ProcessSampleData,
278 HRESULT AVIDec_create(IUnknown * pUnkOuter, LPVOID * ppv)
283 TRACE("(%p, %p)\n", pUnkOuter, ppv);
288 return CLASS_E_NOAGGREGATION;
290 /* Note: This memory is managed by the transform filter once created */
291 This = CoTaskMemAlloc(sizeof(AVIDecImpl));
295 This->pBihOut = NULL;
297 hr = TransformFilter_Create(&(This->tf), &CLSID_AVIDec, &AVIDec_FuncsTable, NULL, NULL, NULL);