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;
76 IMediaSample* pOutSample = NULL;
82 hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
85 ERR("Cannot get pointer to sample data (%x)\n", hr);
89 cbSrcStream = IMediaSample_GetActualDataLength(pSample);
91 TRACE("Sample data ptr = %p, size = %ld\n", pbSrcStream, (long)cbSrcStream);
93 hr = IPin_ConnectionMediaType(This->tf.ppPins[0], &amt);
95 ERR("Unable to retrieve media type\n");
99 /* Update input size to match sample size */
100 This->pBihIn->biSizeImage = cbSrcStream;
102 hr = OutputPin_GetDeliveryBuffer((OutputPin*)This->tf.ppPins[1], &pOutSample, NULL, NULL, 0);
104 ERR("Unable to get delivery buffer (%x)\n", hr);
108 hr = IMediaSample_SetActualDataLength(pOutSample, 0);
111 hr = IMediaSample_GetPointer(pOutSample, &pbDstStream);
113 ERR("Unable to get pointer to buffer (%x)\n", hr);
116 cbDstStream = IMediaSample_GetSize(pOutSample);
117 if (cbDstStream < This->pBihOut->biSizeImage) {
118 ERR("Sample size is too small %d < %d\n", cbDstStream, This->pBihOut->biSizeImage);
123 res = ICDecompress(This->hvid, 0, This->pBihIn, pbSrcStream, This->pBihOut, pbDstStream);
125 ERR("Error occurred during the decompression (%x)\n", res);
127 hr = OutputPin_SendSample((OutputPin*)This->tf.ppPins[1], pOutSample);
128 if (hr != S_OK && hr != VFW_E_NOT_CONNECTED) {
129 ERR("Error sending sample (%x)\n", hr);
135 IMediaSample_Release(pOutSample);
140 static HRESULT AVIDec_ProcessEnd(TransformFilterImpl* pTransformFilter)
142 AVIDecImpl* This = (AVIDecImpl*)pTransformFilter;
145 TRACE("(%p)->()\n", This);
150 result = ICDecompressEnd(This->hvid);
151 if (result != ICERR_OK)
153 ERR("Cannot stop processing (%d)\n", result);
159 static HRESULT AVIDec_ConnectInput(TransformFilterImpl* pTransformFilter, const AM_MEDIA_TYPE * pmt)
161 AVIDecImpl* This = (AVIDecImpl*)pTransformFilter;
162 HRESULT hr = VFW_E_TYPE_NOT_ACCEPTED;
164 TRACE("(%p)->(%p)\n", This, pmt);
166 AVIDec_Cleanup(pTransformFilter);
168 /* Check root (GUID w/o FOURCC) */
169 if ((IsEqualIID(&pmt->majortype, &MEDIATYPE_Video)) &&
170 (!memcmp(((const char *)&pmt->subtype)+4, ((const char *)&MEDIATYPE_Video)+4, sizeof(GUID)-4)) &&
171 (IsEqualIID(&pmt->formattype, &FORMAT_VideoInfo)))
173 VIDEOINFOHEADER* format = (VIDEOINFOHEADER*)pmt->pbFormat;
175 This->hvid = ICLocate(pmt->majortype.Data1, pmt->subtype.Data1, &format->bmiHeader, NULL, ICMODE_DECOMPRESS);
178 AM_MEDIA_TYPE* outpmt = &((OutputPin*)This->tf.ppPins[1])->pin.mtCurrent;
179 const CLSID* outsubtype;
181 DWORD output_depth = format->bmiHeader.biBitCount;
184 switch(format->bmiHeader.biBitCount)
186 case 32: outsubtype = &MEDIASUBTYPE_RGB32; break;
187 case 24: outsubtype = &MEDIASUBTYPE_RGB24; break;
188 case 16: outsubtype = &MEDIASUBTYPE_RGB565; break;
189 case 8: outsubtype = &MEDIASUBTYPE_RGB8; break;
191 TRACE("Non standard input depth %d, forced ouptut depth to 32\n", format->bmiHeader.biBitCount);
192 outsubtype = &MEDIASUBTYPE_RGB32;
197 /* Copy bitmap header from media type to 1 for input and 1 for output */
198 bih_size = format->bmiHeader.biSize + format->bmiHeader.biClrUsed * 4;
199 This->pBihIn = CoTaskMemAlloc(bih_size);
205 This->pBihOut = CoTaskMemAlloc(bih_size);
211 memcpy(This->pBihIn, &format->bmiHeader, bih_size);
212 memcpy(This->pBihOut, &format->bmiHeader, bih_size);
214 /* Update output format as non compressed bitmap */
215 This->pBihOut->biCompression = 0;
216 This->pBihOut->biBitCount = output_depth;
217 This->pBihOut->biSizeImage = This->pBihOut->biWidth * This->pBihOut->biHeight * This->pBihOut->biBitCount / 8;
219 result = ICDecompressQuery(This->hvid, This->pBihIn, This->pBihOut);
220 if (result != ICERR_OK)
222 TRACE("Unable to found a suitable output format (%d)\n", result);
226 /* Update output media type */
227 CopyMediaType(outpmt, pmt);
228 outpmt->subtype = *outsubtype;
229 memcpy(&(((VIDEOINFOHEADER*)outpmt->pbFormat)->bmiHeader), This->pBihOut, This->pBihOut->biSize);
231 /* Update buffer size of media samples in output */
232 ((OutputPin*)This->tf.ppPins[1])->allocProps.cbBuffer = This->pBihOut->biSizeImage;
234 TRACE("Connection accepted\n");
237 TRACE("Unable to find a suitable VFW decompressor\n");
241 AVIDec_Cleanup(pTransformFilter);
243 TRACE("Connection refused\n");
247 static HRESULT AVIDec_Cleanup(TransformFilterImpl* pTransformFilter)
249 AVIDecImpl* This = (AVIDecImpl*)pTransformFilter;
251 TRACE("(%p)->()\n", This);
256 CoTaskMemFree(This->pBihIn);
258 CoTaskMemFree(This->pBihOut);
262 This->pBihOut = NULL;
267 static const TransformFuncsTable AVIDec_FuncsTable = {
269 AVIDec_ProcessSampleData,
276 HRESULT AVIDec_create(IUnknown * pUnkOuter, LPVOID * ppv)
281 TRACE("(%p, %p)\n", pUnkOuter, ppv);
286 return CLASS_E_NOAGGREGATION;
288 /* Note: This memory is managed by the transform filter once created */
289 This = CoTaskMemAlloc(sizeof(AVIDecImpl));
293 This->pBihOut = NULL;
295 hr = TransformFilter_Create(&(This->tf), &CLSID_AVIDec, &AVIDec_FuncsTable, NULL, NULL, NULL);