4 * Copyright 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"
24 #include "control_private.h"
39 #include "wine/unicode.h"
40 #include "wine/debug.h"
42 #include "transform.h"
44 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
46 /* FIXME: Improve buffers management */
47 #define OUTPUT_BUFFER_SIZE 15000
48 #define INPUT_BUFFER_SIZE 4096
50 typedef struct ACMWrapperImpl
52 TransformFilterImpl tf;
55 LPWAVEFORMATEX pWfOut;
56 BYTE buffer[INPUT_BUFFER_SIZE];
59 BOOL reinit_codec; /* FIXME: Should use sync points instead */
62 static HRESULT ACMWrapper_ProcessSampleData(TransformFilterImpl* pTransformFilter, IMediaSample *pSample)
64 ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
66 IMediaSample* pOutSample = NULL;
69 DWORD cbSrcStream = 0;
70 LPBYTE pbSrcStream = NULL;
74 BOOL unprepare_header = FALSE;
78 hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
81 ERR("Cannot get pointer to sample data (%x)\n", hr);
85 cbSrcStream = IMediaSample_GetActualDataLength(pSample);
87 TRACE("Sample data ptr = %p, size = %ld\n", pbSrcStream, (long)cbSrcStream);
89 hr = IPin_ConnectionMediaType(This->tf.ppPins[0], &amt);
91 ERR("Unable to retrieve media type\n");
95 while(hr == S_OK && !stop)
97 DWORD rem_buf = This->max_size - This->current_size;
98 DWORD rem_smp = cbSrcStream - offset;
99 DWORD copy_size = min(rem_buf, rem_smp);
101 memcpy(This->buffer + This->current_size, pbSrcStream + offset, copy_size);
102 This->current_size += copy_size;
105 if (offset >= cbSrcStream)
107 if (This->current_size < This->max_size)
110 hr = OutputPin_GetDeliveryBuffer((OutputPin*)This->tf.ppPins[1], &pOutSample, NULL, NULL, 0);
112 ERR("Unable to get delivery buffer (%x)\n", hr);
116 hr = IMediaSample_SetActualDataLength(pOutSample, 0);
119 hr = IMediaSample_GetPointer(pOutSample, &pbDstStream);
121 ERR("Unable to get pointer to buffer (%x)\n", hr);
124 cbDstStream = IMediaSample_GetSize(pOutSample);
126 ash.cbStruct = sizeof(ash);
129 ash.pbSrc = This->buffer;
130 ash.cbSrcLength = This->current_size;
131 ash.pbDst = pbDstStream;
132 ash.cbDstLength = cbDstStream;
134 if ((res = acmStreamPrepareHeader(This->has, &ash, 0))) {
135 ERR("Cannot prepare header %d\n", res);
139 unprepare_header = TRUE;
141 if ((res = acmStreamConvert(This->has, &ash, This->reinit_codec ? ACM_STREAMCONVERTF_START : 0))) {
142 ERR("Cannot convert data header %d\n", res);
145 This->reinit_codec = FALSE;
147 TRACE("used in %u, used out %u\n", ash.cbSrcLengthUsed, ash.cbDstLengthUsed);
149 hr = IMediaSample_SetActualDataLength(pOutSample, ash.cbDstLengthUsed);
152 if (ash.cbSrcLengthUsed < ash.cbSrcLength) {
153 This->current_size = ash.cbSrcLength - ash.cbSrcLengthUsed;
154 memmove(This->buffer, This->buffer + ash.cbSrcLengthUsed, This->current_size);
157 This->current_size = 0;
159 hr = OutputPin_SendSample((OutputPin*)This->tf.ppPins[1], pOutSample);
160 if (hr != S_OK && hr != VFW_E_NOT_CONNECTED) {
161 ERR("Error sending sample (%x)\n", hr);
166 if (unprepare_header && (res = acmStreamUnprepareHeader(This->has, &ash, 0)))
167 ERR("Cannot unprepare header %d\n", res);
168 unprepare_header = FALSE;
171 IMediaSample_Release(pOutSample);
178 static HRESULT ACMWrapper_ConnectInput(TransformFilterImpl* pTransformFilter, const AM_MEDIA_TYPE * pmt)
180 ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
183 TRACE("(%p)->(%p)\n", This, pmt);
185 /* Check root (GUID w/o FOURCC) */
186 if ((IsEqualIID(&pmt->majortype, &MEDIATYPE_Audio)) &&
187 (!memcmp(((const char *)&pmt->subtype)+4, ((const char *)&MEDIATYPE_Audio)+4, sizeof(GUID)-4)) &&
188 (IsEqualIID(&pmt->formattype, &FORMAT_WaveFormatEx)))
191 AM_MEDIA_TYPE* outpmt = &((OutputPin*)This->tf.ppPins[1])->pin.mtCurrent;
192 This->pWfIn = (LPWAVEFORMATEX)pmt->pbFormat;
195 /* TRACE("ALIGN = %d\n", pACMWrapper->pWfIn->nBlockAlign); */
196 /* pACMWrapper->pWfIn->nBlockAlign = 1; */
198 /* Set output audio data to PCM */
199 CopyMediaType(outpmt, pmt);
200 outpmt->subtype.Data1 = WAVE_FORMAT_PCM;
201 This->pWfOut = (WAVEFORMATEX*)outpmt->pbFormat;
202 This->pWfOut->wFormatTag = WAVE_FORMAT_PCM;
203 This->pWfOut->wBitsPerSample = 16;
204 This->pWfOut->nBlockAlign = 4;
205 This->pWfOut->cbSize = 0;
206 This->pWfOut->nAvgBytesPerSec = This->pWfOut->nChannels * This->pWfOut->nSamplesPerSec
207 * (This->pWfOut->wBitsPerSample/8);
209 if (!(res = acmStreamOpen(&drv, NULL, This->pWfIn, This->pWfOut, NULL, 0, 0, 0)))
213 if ((res = acmStreamSize(drv, OUTPUT_BUFFER_SIZE, &This->max_size, ACM_STREAMSIZEF_DESTINATION))) {
214 ERR("Cannot retrieve input buffer size error %d!\n", res);
215 This->max_size = INPUT_BUFFER_SIZE;
218 TRACE("input buffer size %d\n", This->max_size);
220 /* Update buffer size of media samples in output */
221 ((OutputPin*)This->tf.ppPins[1])->allocProps.cbBuffer = OUTPUT_BUFFER_SIZE;
223 TRACE("Connection accepted\n");
227 FIXME("acmStreamOpen returned %d\n", res);
228 FreeMediaType(outpmt);
229 TRACE("Unable to find a suitable ACM decompressor\n");
232 TRACE("Connection refused\n");
236 static HRESULT ACMWrapper_Cleanup(TransformFilterImpl* pTransformFilter)
238 ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
240 TRACE("(%p)->()\n", This);
243 acmStreamClose(This->has, 0);
250 static const TransformFuncsTable ACMWrapper_FuncsTable = {
252 ACMWrapper_ProcessSampleData,
255 ACMWrapper_ConnectInput,
259 HRESULT ACMWrapper_create(IUnknown * pUnkOuter, LPVOID * ppv)
262 ACMWrapperImpl* This;
264 TRACE("(%p, %p)\n", pUnkOuter, ppv);
269 return CLASS_E_NOAGGREGATION;
271 /* Note: This memory is managed by the transform filter once created */
272 This = CoTaskMemAlloc(sizeof(ACMWrapperImpl));
273 ZeroMemory(This, sizeof(ACMWrapperImpl));
275 This->reinit_codec = TRUE;
277 hr = TransformFilter_Create(&(This->tf), &CLSID_ACMWrapper, &ACMWrapper_FuncsTable);