1 /*****************************************************************************
2 * filter.c : DirectShow access module for vlc
3 *****************************************************************************
4 * Copyright (C) 2002 VideoLAN
7 * Author: Gildas Bazin <gbazin@videolan.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program 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
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
32 #include <vlc/input.h>
36 /* Work-around a bug in w32api-2.5 */
37 # define QACONTAINERFLAGS QACONTAINERFLAGS_SOMETHINGELSE
51 #define FILTER_NAME L"VideoLAN Capture Filter"
52 #define PIN_NAME L"Capture"
54 /*****************************************************************************
56 * Easier to define them hear as mingw doesn't provide them all.
57 *****************************************************************************/
58 const GUID CLSID_SystemDeviceEnum = {0x62be5d10, 0x60eb, 0x11d0, {0xbd, 0x3b, 0x00, 0xa0, 0xc9, 0x11, 0xce, 0x86}};
59 const GUID CLSID_VideoInputDeviceCategory = {0x860BB310,0x5D01,0x11d0,{0xBD,0x3B,0x00,0xA0,0xC9,0x11,0xCE,0x86}};
60 const GUID CLSID_AudioInputDeviceCategory = {0x33d9a762, 0x90c8, 0x11d0, {0xbd, 0x43, 0x00, 0xa0, 0xc9, 0x11, 0xce, 0x86}};
61 const GUID IID_IPropertyBag = {0x55272A00, 0x42CB, 0x11CE, {0x81, 0x35, 0x00, 0xAA, 0x00, 0x4B, 0xB8, 0x51}};
62 const GUID IID_ICreateDevEnum = {0x29840822, 0x5b84, 0x11d0, {0xbd, 0x3b, 0x00, 0xa0, 0xc9, 0x11, 0xce, 0x86}};
63 const GUID IID_IFilterGraph = {0x56a8689f, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
64 const GUID IID_IMediaControl = {0x56a868b1, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
65 const GUID CLSID_FilterGraph = {0xe436ebb3, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
67 const GUID IID_IUnknown = {0x00000000, 0x0000, 0x0000, {0xc0,0x00, 0x00,0x00,0x00,0x00,0x00,0x46}};
68 const GUID IID_IPersist = {0x0000010c, 0x0000, 0x0000, {0xc0,0x00, 0x00,0x00,0x00,0x00,0x00,0x46}};
69 const GUID IID_IMediaFilter = {0x56a86899, 0x0ad4, 0x11ce, {0xb0,0x3a, 0x00,0x20,0xaf,0x0b,0xa7,0x70}};
70 const GUID IID_IBaseFilter = {0x56a86895, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
71 const GUID IID_IPin = {0x56a86891, 0x0ad4, 0x11ce, {0xb0,0x3a, 0x00,0x20,0xaf,0x0b,0xa7,0x70}};
72 const GUID IID_IMemInputPin = {0x56a8689d, 0x0ad4, 0x11ce, {0xb0,0x3a, 0x00,0x20,0xaf,0x0b,0xa7,0x70}};
74 const GUID IID_IEnumPins = {0x56a86892, 0x0ad4, 0x11ce, {0xb0,0x3a, 0x00,0x20,0xaf,0x0b,0xa7,0x70}};
75 const GUID IID_IEnumMediaTypes = {0x89c31040, 0x846b, 0x11ce, {0x97,0xd3, 0x00,0xaa,0x00,0x55,0x59,0x5a}};
77 const GUID IID_IAMBufferNegotiation = {0x56ed71a0, 0xaf5f, 0x11d0, {0xb3, 0xf0, 0x00, 0xaa, 0x00, 0x37, 0x61, 0xc5}};
79 const GUID IID_ISpecifyPropertyPages = {0xb196b28b, 0xbab4, 0x101a, {0xb6, 0x9c, 0x00, 0xaa, 0x00, 0x34, 0x1d, 0x07}};
81 const GUID IID_IQualityControl = {0x56a868a5, 0x0ad4, 0x11ce, {0xb, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
83 const GUID CLSID_CaptureGraphBuilder2 = {0xBF87B6E1, 0x8C27, 0x11d0, {0xB3, 0xF0, 0x0, 0xAA, 0x00, 0x37, 0x61, 0xC5}};
85 const GUID IID_IGraphBuilder = {0x56a868a9, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
87 const GUID IID_ICaptureGraphBuilder2 = {0x93E5A4E0, 0x2D50, 0x11d2, {0xAB, 0xFA, 0x00, 0xA0, 0xC9, 0xC6, 0xE3, 0x8D}};
89 const GUID IID_IAMTVAudio = {0x83EC1C30, 0x23D1, 0x11d1, {0x99, 0xE6, 0x00, 0xA0, 0xC9, 0x56, 0x02, 0x66}};
90 const GUID IID_IAMStreamConfig = {0xC6E13340, 0x30AC, 0x11d0, {0xA1, 0x8C, 0x00, 0xA0, 0xC9, 0x11, 0x89, 0x56}};
91 const GUID IID_IAMCrossbar = {0xC6E13380, 0x30AC, 0x11d0, {0xA1, 0x8C, 0x00, 0xA0, 0xC9, 0x11, 0x89, 0x56}};
92 const GUID IID_IAMTVTuner = {0x211A8766, 0x03AC, 0x11d1, {0x8D, 0x13, 0x00, 0xAA, 0x00, 0xBD, 0x83, 0x39}};
94 const GUID IID_IKsPropertySet = {0x31EFAC30, 0x515C, 0x11d0, {0xA9, 0xAA, 0x00, 0xAA, 0x00, 0x61, 0xBE, 0x93}};
98 const GUID FORMAT_VideoInfo = {0x05589f80, 0xc356, 0x11ce, {0xbf, 0x01, 0x00, 0xaa, 0x00, 0x55, 0x59, 0x5a}};
100 * MEDIATYPEs and MEDIASUBTYPEs
102 const GUID MEDIATYPE_Video = {0x73646976, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
103 const GUID MEDIATYPE_Interleaved = {0x73766169, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
104 const GUID MEDIATYPE_Stream = {0xe436eb83, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
105 const GUID MEDIASUBTYPE_PREVIEW_VIDEO = {0x2859e1da, 0xb81f, 0x4fbd, {0x94, 0x3b, 0xe2, 0x37, 0x24, 0xa1, 0xab, 0xb3}};
107 /* Packed RGB formats */
108 const GUID MEDIASUBTYPE_RGB1 = {0xe436eb78, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
109 const GUID MEDIASUBTYPE_RGB4 = {0xe436eb79, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
110 const GUID MEDIASUBTYPE_RGB8 = {0xe436eb7a, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
111 const GUID MEDIASUBTYPE_RGB565 = {0xe436eb7b, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
112 const GUID MEDIASUBTYPE_RGB555 = {0xe436eb7c, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
113 const GUID MEDIASUBTYPE_RGB24 = {0xe436eb7d, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
114 const GUID MEDIASUBTYPE_RGB32 = {0xe436eb7e, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
115 const GUID MEDIASUBTYPE_ARGB32 = {0x773c9ac0, 0x3274, 0x11d0, {0xb7, 0x24, 0x0, 0xaa, 0x0, 0x6c, 0x1a, 0x1}};
117 /* Packed YUV formats */
118 const GUID MEDIASUBTYPE_YUYV = {0x56595559, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
119 const GUID MEDIASUBTYPE_Y411 = {0x31313459, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
120 const GUID MEDIASUBTYPE_Y211 = {0x31313259, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
121 const GUID MEDIASUBTYPE_YUY2 = {0x32595559, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
122 const GUID MEDIASUBTYPE_YVYU = {0x55595659, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
123 const GUID MEDIASUBTYPE_UYVY = {0x59565955, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
125 /* Planar YUV formats */
126 const GUID MEDIASUBTYPE_YVU9 = {0x39555659, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
127 const GUID MEDIASUBTYPE_YV12 = {0x32315659, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
128 const GUID MEDIASUBTYPE_IYUV = {0x56555949, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}}; /* identical to YV12 */
129 const GUID MEDIASUBTYPE_Y41P = {0x50313459, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
130 const GUID MEDIASUBTYPE_I420 = {0x30323449, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
132 const GUID MEDIATYPE_Audio = {0x73647561, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
133 const GUID FORMAT_WaveFormatEx = {0x05589f81, 0xc356, 0x11ce, {0xbf, 0x01, 0x00, 0xaa, 0x00, 0x55, 0x59, 0x5a}};
134 const GUID MEDIASUBTYPE_PCM = {0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
135 const GUID MEDIASUBTYPE_IEEE_FLOAT = {0x00000003, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
138 const GUID MEDIASUBTYPE_dvsd = {0x64737664, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
139 const GUID MEDIASUBTYPE_dvhd = {0x64687664, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
140 const GUID MEDIASUBTYPE_dvsl = {0x6c737664, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
143 const GUID MEDIASUBTYPE_MPEG2_VIDEO = {0xe06d8026, 0xdb46, 0x11cf, {0xb4, 0xd1, 0x00, 0x80, 0x5f, 0x6c, 0xbb, 0xea}};
144 const GUID MEDIASUBTYPE_MPEG2_PROGRAM = {0xe06d8022, 0xdb46, 0x11cf, {0xb4, 0xd1, 0x00, 0x80, 0x5f, 0x6c, 0xbb, 0xea}};
145 const GUID MEDIASUBTYPE_MPEG2_TRANSPORT = {0xe06d8023, 0xdb46, 0x11cf, {0xb4, 0xd1, 0x00, 0x80, 0x5f, 0x6c, 0xbb, 0xea}};
146 const GUID FORMAT_MPEG2Video = {0xe06d80e3, 0xdb46, 0x11cf, {0xb4, 0xd1, 0x00, 0x80, 0x5f, 0x6c, 0xbb, 0xea}};
149 const GUID FORMAT_AnalogVideo = {0x482dde0, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
151 const GUID MEDIATYPE_AnalogVideo = {0x482dde1, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xab, 0x0, 0x6e, 0xcb, 0x65}};
153 const GUID MEDIASUBTYPE_AnalogVideo_NTSC_M = {0x482dde2, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
154 const GUID MEDIASUBTYPE_AnalogVideo_PAL_B = {0x482dde5, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
155 const GUID MEDIASUBTYPE_AnalogVideo_PAL_D = {0x482dde6, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
156 const GUID MEDIASUBTYPE_AnalogVideo_PAL_G = {0x482dde7, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
157 const GUID MEDIASUBTYPE_AnalogVideo_PAL_H = {0x482dde8, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
158 const GUID MEDIASUBTYPE_AnalogVideo_PAL_I = {0x482dde9, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
159 const GUID MEDIASUBTYPE_AnalogVideo_PAL_M = {0x482ddea, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
160 const GUID MEDIASUBTYPE_AnalogVideo_PAL_N = {0x482ddeb, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
161 const GUID MEDIASUBTYPE_AnalogVideo_PAL_N_COMBO = {0x482ddec, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
162 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_B = {0x482ddf0, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
163 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_D = {0x482ddf1, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
164 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_G = {0x482ddf2, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
165 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_H = {0x482ddf3, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
166 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_K = {0x482ddf4, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
167 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_K1 = {0x482ddf5, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
168 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_L = {0x482ddf6, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
170 const GUID AMPROPSETID_Pin= {0x9b00f101, 0x1567, 0x11d1, {0xb3, 0xf1, 0x0, 0xaa, 0x0, 0x37, 0x61, 0xc5}};
171 const GUID PIN_CATEGORY_ANALOGVIDEOIN= {0xfb6c4283, 0x0353, 0x11d1, {0x90, 0x5f, 0x00, 0x00, 0xc0, 0xcc, 0x16, 0xba}};
172 const GUID PIN_CATEGORY_CAPTURE= {0xfb6c4281, 0x0353, 0x11d1, {0x90, 0x5f, 0x0, 0x0, 0xc0, 0xcc, 0x16, 0xba}};
173 const GUID LOOK_UPSTREAM_ONLY= {0xac798be0, 0x98e3, 0x11d1, {0xb3, 0xf1, 0x0, 0xaa, 0x0, 0x37, 0x61, 0xc}};
175 const GUID GUID_NULL = {0x0000, 0x0000, 0x0000, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}};
177 void WINAPI FreeMediaType( AM_MEDIA_TYPE& mt )
179 if( mt.cbFormat != 0 )
181 CoTaskMemFree( (PVOID)mt.pbFormat );
185 if( mt.pUnk != NULL )
192 HRESULT WINAPI CopyMediaType( AM_MEDIA_TYPE *pmtTarget,
193 const AM_MEDIA_TYPE *pmtSource )
195 *pmtTarget = *pmtSource;
197 if( !pmtSource || !pmtTarget ) return S_FALSE;
199 if( pmtSource->cbFormat && pmtSource->pbFormat )
201 pmtTarget->pbFormat = (PBYTE)CoTaskMemAlloc( pmtSource->cbFormat );
202 if( pmtTarget->pbFormat == NULL )
204 pmtTarget->cbFormat = 0;
205 return E_OUTOFMEMORY;
209 CopyMemory( (PVOID)pmtTarget->pbFormat, (PVOID)pmtSource->pbFormat,
210 pmtTarget->cbFormat );
213 if( pmtTarget->pUnk != NULL )
215 pmtTarget->pUnk->AddRef();
221 int GetFourCCFromMediaType(const AM_MEDIA_TYPE &media_type)
225 if( media_type.majortype == MEDIATYPE_Video )
227 /* currently only support this type of video info format */
228 if( media_type.formattype == FORMAT_VideoInfo )
230 /* Packed RGB formats */
231 if( media_type.subtype == MEDIASUBTYPE_RGB1 )
232 i_fourcc = VLC_FOURCC( 'R', 'G', 'B', '1' );
233 else if( media_type.subtype == MEDIASUBTYPE_RGB4 )
234 i_fourcc = VLC_FOURCC( 'R', 'G', 'B', '4' );
235 else if( media_type.subtype == MEDIASUBTYPE_RGB8 )
236 i_fourcc = VLC_FOURCC( 'R', 'G', 'B', '8' );
237 else if( media_type.subtype == MEDIASUBTYPE_RGB555 )
238 i_fourcc = VLC_FOURCC( 'R', 'V', '1', '5' );
239 else if( media_type.subtype == MEDIASUBTYPE_RGB565 )
240 i_fourcc = VLC_FOURCC( 'R', 'V', '1', '6' );
241 else if( media_type.subtype == MEDIASUBTYPE_RGB24 )
242 i_fourcc = VLC_FOURCC( 'R', 'V', '2', '4' );
243 else if( media_type.subtype == MEDIASUBTYPE_RGB32 )
244 i_fourcc = VLC_FOURCC( 'R', 'V', '3', '2' );
245 else if( media_type.subtype == MEDIASUBTYPE_ARGB32 )
246 i_fourcc = VLC_FOURCC( 'R', 'G', 'B', 'A' );
248 /* Planar YUV formats */
249 else if( media_type.subtype == MEDIASUBTYPE_I420 )
250 i_fourcc = VLC_FOURCC( 'I', '4', '2', '0' );
251 else if( media_type.subtype == MEDIASUBTYPE_Y41P )
252 i_fourcc = VLC_FOURCC( 'I', '4', '1', '1' );
253 else if( media_type.subtype == MEDIASUBTYPE_YV12 )
254 i_fourcc = VLC_FOURCC( 'Y', 'V', '1', '2' );
255 else if( media_type.subtype == MEDIASUBTYPE_IYUV )
256 i_fourcc = VLC_FOURCC( 'Y', 'V', '1', '2' );
257 else if( media_type.subtype == MEDIASUBTYPE_YVU9 )
258 i_fourcc = VLC_FOURCC( 'Y', 'V', 'U', '9' );
260 /* Packed YUV formats */
261 else if( media_type.subtype == MEDIASUBTYPE_YVYU )
262 i_fourcc = VLC_FOURCC( 'Y', 'V', 'Y', 'U' );
263 else if( media_type.subtype == MEDIASUBTYPE_YUYV )
264 i_fourcc = VLC_FOURCC( 'Y', 'U', 'Y', '2' );
265 else if( media_type.subtype == MEDIASUBTYPE_Y411 )
266 i_fourcc = VLC_FOURCC( 'I', '4', '1', 'N' );
267 else if( media_type.subtype == MEDIASUBTYPE_Y211 )
268 i_fourcc = VLC_FOURCC( 'Y', '2', '1', '1' );
269 else if( media_type.subtype == MEDIASUBTYPE_YUY2 )
270 i_fourcc = VLC_FOURCC( 'Y', 'U', 'Y', '2' );
271 else if( media_type.subtype == MEDIASUBTYPE_UYVY )
272 i_fourcc = VLC_FOURCC( 'U', 'Y', 'V', 'Y' );
274 /* MPEG2 video elementary stream */
275 else if( media_type.subtype == MEDIASUBTYPE_MPEG2_VIDEO )
276 i_fourcc = VLC_FOURCC( 'm', 'p', '2', 'v' );
279 else if( media_type.subtype == MEDIASUBTYPE_dvsl )
280 i_fourcc = VLC_FOURCC( 'd', 'v', 's', 'l' );
281 else if( media_type.subtype == MEDIASUBTYPE_dvsd )
282 i_fourcc = VLC_FOURCC( 'd', 'v', 's', 'd' );
283 else if( media_type.subtype == MEDIASUBTYPE_dvhd )
284 i_fourcc = VLC_FOURCC( 'd', 'v', 'h', 'd' );
287 else if( media_type.majortype == MEDIATYPE_Audio )
289 /* currently only support this type of audio info format */
290 if( media_type.formattype == FORMAT_WaveFormatEx )
292 if( media_type.subtype == MEDIASUBTYPE_PCM )
293 i_fourcc = VLC_FOURCC( 'a', 'r', 'a', 'w' );
294 else if( media_type.subtype == MEDIASUBTYPE_IEEE_FLOAT )
295 i_fourcc = VLC_FOURCC( 'f', 'l', '3', '2' );
298 else if( media_type.majortype == MEDIATYPE_Stream )
300 if( media_type.subtype == MEDIASUBTYPE_MPEG2_PROGRAM )
301 i_fourcc = VLC_FOURCC( 'm', 'p', '2', 'p' );
302 else if( media_type.subtype == MEDIASUBTYPE_MPEG2_TRANSPORT )
303 i_fourcc = VLC_FOURCC( 'm', 'p', '2', 't' );
308 /****************************************************************************
309 * Implementation of our dummy directshow filter pin class
310 ****************************************************************************/
312 CapturePin::CapturePin( access_t * _p_input, CaptureFilter *_p_filter,
313 AM_MEDIA_TYPE *mt, size_t mt_count )
314 : p_input( _p_input ), p_filter( _p_filter ), p_connected_pin( NULL ),
315 media_types(mt), media_type_count(mt_count), i_ref( 1 )
317 cx_media_type.majortype = mt[0].majortype;
318 cx_media_type.subtype = GUID_NULL;
319 cx_media_type.pbFormat = NULL;
320 cx_media_type.pUnk = NULL;
323 CapturePin::~CapturePin()
326 msg_Dbg( p_input, "CapturePin::~CapturePin" );
328 for( size_t c=0; c<media_type_count; c++ )
330 FreeMediaType(media_types[c]);
332 FreeMediaType(cx_media_type);
335 HRESULT CapturePin::CustomGetSample( VLCMediaSample *vlc_sample )
337 #if 0 //def DEBUG_DSHOW
338 msg_Dbg( p_input, "CapturePin::CustomGetSample" );
341 access_sys_t *p_sys = p_input->p_sys;
342 vlc_mutex_lock( &p_sys->lock );
343 if( samples_queue.size() )
345 *vlc_sample = samples_queue.back();
346 samples_queue.pop_back();
347 vlc_mutex_unlock( &p_sys->lock );
350 vlc_mutex_unlock( &p_sys->lock );
354 AM_MEDIA_TYPE &CapturePin::CustomGetMediaType()
356 return cx_media_type;
359 /* IUnknown methods */
360 STDMETHODIMP CapturePin::QueryInterface(REFIID riid, void **ppv)
363 msg_Dbg( p_input, "CapturePin::QueryInterface" );
366 if( riid == IID_IUnknown ||
373 if( riid == IID_IMemInputPin )
376 *ppv = (IMemInputPin *)this;
382 msg_Dbg( p_input, "CapturePin::QueryInterface() failed for: "
383 "%04X-%02X-%02X-%02X%02X%02X%02X%02X%02X%02X%02X",
384 (int)riid.Data1, (int)riid.Data2, (int)riid.Data3,
385 static_cast<int>(riid.Data4[0]), (int)riid.Data4[1],
386 (int)riid.Data4[2], (int)riid.Data4[3],
387 (int)riid.Data4[4], (int)riid.Data4[5],
388 (int)riid.Data4[6], (int)riid.Data4[7] );
391 return E_NOINTERFACE;
395 STDMETHODIMP_(ULONG) CapturePin::AddRef()
397 #ifdef DEBUG_DSHOW_L1
398 msg_Dbg( p_input, "CapturePin::AddRef (ref: %i)", i_ref );
403 STDMETHODIMP_(ULONG) CapturePin::Release()
405 #ifdef DEBUG_DSHOW_L1
406 msg_Dbg( p_input, "CapturePin::Release (ref: %i)", i_ref );
409 if( !InterlockedDecrement(&i_ref) ) delete this;
415 STDMETHODIMP CapturePin::Connect( IPin * pReceivePin,
416 const AM_MEDIA_TYPE *pmt )
418 if( State_Running != p_filter->state )
420 if( ! p_connected_pin )
425 if( (GUID_NULL != pmt->majortype) && (media_types[0].majortype != pmt->majortype) )
426 msg_Dbg( p_input, "CapturePin::Connect [media major type mismatch]" );
429 if( (GUID_NULL != pmt->subtype) && (! GetFourCCFromMediaType(*pmt)) )
430 msg_Dbg( p_input, "CapturePin::Connect [media subtype type not supported]" );
435 if( pmt->majortype == MEDIATYPE_Video )
437 if( (((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biHeight == 0) )
439 msg_Dbg( p_input, "CapturePin::Connect [video height == 0]" );
442 if( (((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biWidth == 0) )
444 msg_Dbg( p_input, "CapturePin::Connect [video width == 0]" );
449 msg_Dbg( p_input, "CapturePin::Connect [OK]" );
452 msg_Dbg( p_input, "CapturePin::Connect [already connected]" );
453 return VFW_E_ALREADY_CONNECTED;
455 msg_Dbg( p_input, "CapturePin::Connect [not stopped]" );
456 return VFW_E_NOT_STOPPED;
458 STDMETHODIMP CapturePin::ReceiveConnection( IPin * pConnector,
459 const AM_MEDIA_TYPE *pmt )
461 if( State_Stopped != p_filter->state )
463 msg_Dbg( p_input, "CapturePin::ReceiveConnection [not stopped]" );
464 return VFW_E_NOT_STOPPED;
467 if( !pConnector || !pmt )
469 msg_Dbg( p_input, "CapturePin::ReceiveConnection [null pointer]" );
473 if( p_connected_pin )
475 msg_Dbg( p_input, "CapturePin::ReceiveConnection [already connected]" );
476 return VFW_E_ALREADY_CONNECTED;
479 if( S_OK != QueryAccept(pmt) )
481 msg_Dbg( p_input, "CapturePin::ReceiveConnection [media type not accepted]" );
482 return VFW_E_TYPE_NOT_ACCEPTED;
485 msg_Dbg( p_input, "CapturePin::ReceiveConnection [OK]" );
487 p_connected_pin = pConnector;
488 p_connected_pin->AddRef();
490 FreeMediaType( cx_media_type );
491 return CopyMediaType( &cx_media_type, pmt );
493 STDMETHODIMP CapturePin::Disconnect()
495 if( ! p_connected_pin )
497 msg_Dbg( p_input, "CapturePin::Disconnect [not connected]" );
501 msg_Dbg( p_input, "CapturePin::Disconnect [OK]" );
503 #if 0 // FIXME: This does seem to create crashes sometimes
504 VLCMediaSample vlc_sample;
505 access_sys_t *p_sys = p_input->p_sys;
507 vlc_mutex_lock( &p_sys->lock );
508 while( samples_queue.size() )
510 vlc_sample = samples_queue.back();
511 samples_queue.pop_back();
512 vlc_sample.p_sample->Release();
514 vlc_mutex_unlock( &p_sys->lock );
517 p_connected_pin->Release();
518 p_connected_pin = NULL;
519 //FreeMediaType( cx_media_type );
520 //cx_media_type.subtype = GUID_NULL;
524 STDMETHODIMP CapturePin::ConnectedTo( IPin **pPin )
526 if( !p_connected_pin )
528 msg_Dbg( p_input, "CapturePin::ConnectedTo [not connected]" );
529 return VFW_E_NOT_CONNECTED;
532 p_connected_pin->AddRef();
533 *pPin = p_connected_pin;
535 msg_Dbg( p_input, "CapturePin::ConnectedTo [OK]" );
539 STDMETHODIMP CapturePin::ConnectionMediaType( AM_MEDIA_TYPE *pmt )
541 if( !p_connected_pin )
543 msg_Dbg( p_input, "CapturePin::ConnectionMediaType [not connected]" );
544 return VFW_E_NOT_CONNECTED;
547 return CopyMediaType( pmt, &cx_media_type );
549 STDMETHODIMP CapturePin::QueryPinInfo( PIN_INFO * pInfo )
552 msg_Dbg( p_input, "CapturePin::QueryPinInfo" );
555 pInfo->pFilter = p_filter;
556 if( p_filter ) p_filter->AddRef();
558 memcpy(pInfo->achName, PIN_NAME, sizeof(PIN_NAME));
559 pInfo->dir = PINDIR_INPUT;
563 STDMETHODIMP CapturePin::QueryDirection( PIN_DIRECTION * pPinDir )
566 msg_Dbg( p_input, "CapturePin::QueryDirection" );
569 *pPinDir = PINDIR_INPUT;
572 STDMETHODIMP CapturePin::QueryId( LPWSTR * Id )
575 msg_Dbg( p_input, "CapturePin::QueryId" );
578 *Id = L"VideoLAN Capture Pin";
582 STDMETHODIMP CapturePin::QueryAccept( const AM_MEDIA_TYPE *pmt )
584 if( State_Stopped == p_filter->state )
586 if( media_types[0].majortype == pmt->majortype )
588 int i_chroma = GetFourCCFromMediaType(*pmt);
591 if( pmt->majortype == MEDIATYPE_Video )
594 ((((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biHeight == 0) ||
595 (((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biWidth == 0)) )
597 msg_Dbg( p_input, "CapturePin::QueryAccept [video size wxh == 0]" );
600 msg_Dbg( p_input, "CapturePin::QueryAccept [OK] (width=%ld, height=%ld, chroma=%4.4s)",
601 ((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biWidth,
602 ((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biHeight,
607 msg_Dbg( p_input, "CapturePin::QueryAccept [OK] (channels=%d, samples/sec=%lu, bits/samples=%d, format=%4.4s)",
608 ((WAVEFORMATEX *)pmt->pbFormat)->nChannels,
609 ((WAVEFORMATEX *)pmt->pbFormat)->nSamplesPerSec,
610 ((WAVEFORMATEX *)pmt->pbFormat)->wBitsPerSample,
615 if( p_connected_pin )
617 FreeMediaType( cx_media_type );
618 CopyMediaType( &cx_media_type, pmt );
623 msg_Dbg( p_input, "CapturePin::QueryAccept [media type not supported]" );
627 msg_Dbg( p_input, "CapturePin::QueryAccept [media type mismatch]" );
631 msg_Dbg( p_input, "CapturePin::QueryAccept [not stopped]" );
635 STDMETHODIMP CapturePin::EnumMediaTypes( IEnumMediaTypes **ppEnum )
638 msg_Dbg( p_input, "CapturePin::EnumMediaTypes" );
641 *ppEnum = new CaptureEnumMediaTypes( p_input, this, NULL );
643 if( *ppEnum == NULL ) return E_OUTOFMEMORY;
647 STDMETHODIMP CapturePin::QueryInternalConnections( IPin* *apPin, ULONG *nPin )
650 msg_Dbg( p_input, "CapturePin::QueryInternalConnections" );
654 STDMETHODIMP CapturePin::EndOfStream( void )
657 msg_Dbg( p_input, "CapturePin::EndOfStream" );
661 STDMETHODIMP CapturePin::BeginFlush( void )
664 msg_Dbg( p_input, "CapturePin::BeginFlush" );
668 STDMETHODIMP CapturePin::EndFlush( void )
671 msg_Dbg( p_input, "CapturePin::EndFlush" );
675 STDMETHODIMP CapturePin::NewSegment( REFERENCE_TIME tStart,
676 REFERENCE_TIME tStop,
680 msg_Dbg( p_input, "CapturePin::NewSegment" );
685 /* IMemInputPin methods */
686 STDMETHODIMP CapturePin::GetAllocator( IMemAllocator **ppAllocator )
689 msg_Dbg( p_input, "CapturePin::GetAllocator" );
692 return VFW_E_NO_ALLOCATOR;
694 STDMETHODIMP CapturePin::NotifyAllocator( IMemAllocator *pAllocator,
698 msg_Dbg( p_input, "CapturePin::NotifyAllocator" );
703 STDMETHODIMP CapturePin::GetAllocatorRequirements( ALLOCATOR_PROPERTIES *pProps )
706 msg_Dbg( p_input, "CapturePin::GetAllocatorRequirements" );
711 STDMETHODIMP CapturePin::Receive( IMediaSample *pSample )
713 #if 0 //def DEBUG_DSHOW
714 msg_Dbg( p_input, "CapturePin::Receive" );
718 mtime_t i_timestamp = mdate() * 10;
719 VLCMediaSample vlc_sample = {pSample, i_timestamp};
721 access_sys_t *p_sys = p_input->p_sys;
722 vlc_mutex_lock( &p_sys->lock );
723 samples_queue.push_front( vlc_sample );
725 /* Make sure we don't cache too many samples */
726 if( samples_queue.size() > 10 )
728 vlc_sample = samples_queue.back();
729 samples_queue.pop_back();
730 msg_Dbg( p_input, "CapturePin::Receive trashing late input sample" );
731 vlc_sample.p_sample->Release();
734 vlc_cond_signal( &p_sys->wait );
735 vlc_mutex_unlock( &p_sys->lock );
739 STDMETHODIMP CapturePin::ReceiveMultiple( IMediaSample **pSamples,
741 long *nSamplesProcessed )
745 *nSamplesProcessed = 0;
746 while( nSamples-- > 0 )
748 hr = Receive( pSamples[*nSamplesProcessed] );
749 if( hr != S_OK ) break;
750 (*nSamplesProcessed)++;
754 STDMETHODIMP CapturePin::ReceiveCanBlock( void )
757 msg_Dbg( p_input, "CapturePin::ReceiveCanBlock" );
760 return S_FALSE; /* Thou shalt not block */
763 /****************************************************************************
764 * Implementation of our dummy directshow filter class
765 ****************************************************************************/
766 CaptureFilter::CaptureFilter( access_t * _p_input, AM_MEDIA_TYPE *mt,
768 : p_input( _p_input ), p_pin( new CapturePin( _p_input, this, mt, mt_count ) ),
769 state( State_Stopped ), i_ref( 1 )
773 CaptureFilter::~CaptureFilter()
776 msg_Dbg( p_input, "CaptureFilter::~CaptureFilter" );
781 /* IUnknown methods */
782 STDMETHODIMP CaptureFilter::QueryInterface( REFIID riid, void **ppv )
785 msg_Dbg( p_input, "CaptureFilter::QueryInterface" );
788 if( riid == IID_IUnknown )
791 *ppv = (IUnknown *)this;
794 if( riid == IID_IPersist )
797 *ppv = (IPersist *)this;
800 if( riid == IID_IMediaFilter )
803 *ppv = (IMediaFilter *)this;
806 if( riid == IID_IBaseFilter )
809 *ppv = (IBaseFilter *)this;
815 msg_Dbg( p_input, "CaptureFilter::QueryInterface() failed for: "
816 "%04X-%02X-%02X-%02X%02X%02X%02X%02X%02X%02X%02X",
817 (int)riid.Data1, (int)riid.Data2, (int)riid.Data3,
818 static_cast<int>(riid.Data4[0]), (int)riid.Data4[1],
819 (int)riid.Data4[2], (int)riid.Data4[3],
820 (int)riid.Data4[4], (int)riid.Data4[5],
821 (int)riid.Data4[6], (int)riid.Data4[7] );
824 return E_NOINTERFACE;
827 STDMETHODIMP_(ULONG) CaptureFilter::AddRef()
829 #ifdef DEBUG_DSHOW_L1
830 msg_Dbg( p_input, "CaptureFilter::AddRef (ref: %i)", i_ref );
835 STDMETHODIMP_(ULONG) CaptureFilter::Release()
837 #ifdef DEBUG_DSHOW_L1
838 msg_Dbg( p_input, "CaptureFilter::Release (ref: %i)", i_ref );
841 if( !InterlockedDecrement(&i_ref) ) delete this;
846 /* IPersist method */
847 STDMETHODIMP CaptureFilter::GetClassID(CLSID *pClsID)
850 msg_Dbg( p_input, "CaptureFilter::GetClassID" );
855 /* IMediaFilter methods */
856 STDMETHODIMP CaptureFilter::GetState(DWORD dwMSecs, FILTER_STATE *State)
859 msg_Dbg( p_input, "CaptureFilter::GetState %i", state );
865 STDMETHODIMP CaptureFilter::SetSyncSource(IReferenceClock *pClock)
868 msg_Dbg( p_input, "CaptureFilter::SetSyncSource" );
873 STDMETHODIMP CaptureFilter::GetSyncSource(IReferenceClock **pClock)
876 msg_Dbg( p_input, "CaptureFilter::GetSyncSource" );
882 STDMETHODIMP CaptureFilter::Stop()
885 msg_Dbg( p_input, "CaptureFilter::Stop" );
888 state = State_Stopped;
891 STDMETHODIMP CaptureFilter::Pause()
894 msg_Dbg( p_input, "CaptureFilter::Pause" );
897 state = State_Paused;
900 STDMETHODIMP CaptureFilter::Run(REFERENCE_TIME tStart)
903 msg_Dbg( p_input, "CaptureFilter::Run" );
906 state = State_Running;
910 /* IBaseFilter methods */
911 STDMETHODIMP CaptureFilter::EnumPins( IEnumPins ** ppEnum )
914 msg_Dbg( p_input, "CaptureFilter::EnumPins" );
917 /* Create a new ref counted enumerator */
918 *ppEnum = new CaptureEnumPins( p_input, this, NULL );
919 return *ppEnum == NULL ? E_OUTOFMEMORY : NOERROR;
921 STDMETHODIMP CaptureFilter::FindPin( LPCWSTR Id, IPin ** ppPin )
924 msg_Dbg( p_input, "CaptureFilter::FindPin" );
928 STDMETHODIMP CaptureFilter::QueryFilterInfo( FILTER_INFO * pInfo )
931 msg_Dbg( p_input, "CaptureFilter::QueryFilterInfo" );
934 memcpy(pInfo->achName, FILTER_NAME, sizeof(FILTER_NAME));
936 pInfo->pGraph = p_graph;
937 if( p_graph ) p_graph->AddRef();
941 STDMETHODIMP CaptureFilter::JoinFilterGraph( IFilterGraph * pGraph,
945 msg_Dbg( p_input, "CaptureFilter::JoinFilterGraph" );
952 STDMETHODIMP CaptureFilter::QueryVendorInfo( LPWSTR* pVendorInfo )
955 msg_Dbg( p_input, "CaptureFilter::QueryVendorInfo" );
961 CapturePin *CaptureFilter::CustomGetPin()
966 /****************************************************************************
967 * Implementation of our dummy directshow enumpins class
968 ****************************************************************************/
970 CaptureEnumPins::CaptureEnumPins( access_t * _p_input,
971 CaptureFilter *_p_filter,
972 CaptureEnumPins *pEnumPins )
973 : p_input( _p_input ), p_filter( _p_filter ), i_ref( 1 )
975 /* Hold a reference count on our filter */
978 /* Are we creating a new enumerator */
980 if( pEnumPins == NULL )
986 i_position = pEnumPins->i_position;
990 CaptureEnumPins::~CaptureEnumPins()
993 msg_Dbg( p_input, "CaptureEnumPins::~CaptureEnumPins" );
998 /* IUnknown methods */
999 STDMETHODIMP CaptureEnumPins::QueryInterface( REFIID riid, void **ppv )
1002 msg_Dbg( p_input, "CaptureEnumPins::QueryInterface" );
1005 if( riid == IID_IUnknown ||
1006 riid == IID_IEnumPins )
1009 *ppv = (IEnumPins *)this;
1015 return E_NOINTERFACE;
1018 STDMETHODIMP_(ULONG) CaptureEnumPins::AddRef()
1020 #ifdef DEBUG_DSHOW_L1
1021 msg_Dbg( p_input, "CaptureEnumPins::AddRef (ref: %i)", i_ref );
1026 STDMETHODIMP_(ULONG) CaptureEnumPins::Release()
1028 #ifdef DEBUG_DSHOW_L1
1029 msg_Dbg( p_input, "CaptureEnumPins::Release (ref: %i)", i_ref );
1032 if( !InterlockedDecrement(&i_ref) ) delete this;
1038 STDMETHODIMP CaptureEnumPins::Next( ULONG cPins, IPin ** ppPins,
1042 msg_Dbg( p_input, "CaptureEnumPins::Next" );
1045 unsigned int i_fetched = 0;
1047 if( i_position < 1 && cPins > 0 )
1049 IPin *pPin = p_filter->CustomGetPin();
1056 if( pcFetched ) *pcFetched = i_fetched;
1058 return (i_fetched == cPins) ? S_OK : S_FALSE;
1060 STDMETHODIMP CaptureEnumPins::Skip( ULONG cPins )
1063 msg_Dbg( p_input, "CaptureEnumPins::Skip" );
1066 i_position += cPins;
1068 if( i_position > 1 )
1075 STDMETHODIMP CaptureEnumPins::Reset()
1078 msg_Dbg( p_input, "CaptureEnumPins::Reset" );
1084 STDMETHODIMP CaptureEnumPins::Clone( IEnumPins **ppEnum )
1087 msg_Dbg( p_input, "CaptureEnumPins::Clone" );
1090 *ppEnum = new CaptureEnumPins( p_input, p_filter, this );
1091 if( *ppEnum == NULL ) return E_OUTOFMEMORY;
1096 /****************************************************************************
1097 * Implementation of our dummy directshow enummediatypes class
1098 ****************************************************************************/
1099 CaptureEnumMediaTypes::CaptureEnumMediaTypes( access_t * _p_input,
1100 CapturePin *_p_pin, CaptureEnumMediaTypes *pEnumMediaTypes )
1101 : p_input( _p_input ), p_pin( _p_pin ), i_ref( 1 )
1103 /* Hold a reference count on our filter */
1106 /* Are we creating a new enumerator */
1107 if( pEnumMediaTypes == NULL )
1109 CopyMediaType(&cx_media_type, &p_pin->cx_media_type);
1114 CopyMediaType(&cx_media_type, &pEnumMediaTypes->cx_media_type);
1115 i_position = pEnumMediaTypes->i_position;
1119 CaptureEnumMediaTypes::~CaptureEnumMediaTypes()
1122 msg_Dbg( p_input, "CaptureEnumMediaTypes::~CaptureEnumMediaTypes" );
1124 FreeMediaType(cx_media_type);
1128 /* IUnknown methods */
1129 STDMETHODIMP CaptureEnumMediaTypes::QueryInterface( REFIID riid, void **ppv )
1132 msg_Dbg( p_input, "CaptureEnumMediaTypes::QueryInterface" );
1135 if( riid == IID_IUnknown ||
1136 riid == IID_IEnumMediaTypes )
1139 *ppv = (IEnumMediaTypes *)this;
1145 return E_NOINTERFACE;
1148 STDMETHODIMP_(ULONG) CaptureEnumMediaTypes::AddRef()
1150 #ifdef DEBUG_DSHOW_L1
1151 msg_Dbg( p_input, "CaptureEnumMediaTypes::AddRef (ref: %i)", i_ref );
1156 STDMETHODIMP_(ULONG) CaptureEnumMediaTypes::Release()
1158 #ifdef DEBUG_DSHOW_L1
1159 msg_Dbg( p_input, "CaptureEnumMediaTypes::Release (ref: %i)", i_ref );
1162 if( !InterlockedDecrement(&i_ref) ) delete this;
1167 /* IEnumMediaTypes */
1168 STDMETHODIMP CaptureEnumMediaTypes::Next( ULONG cMediaTypes,
1169 AM_MEDIA_TYPE ** ppMediaTypes,
1173 msg_Dbg( p_input, "CaptureEnumMediaTypes::Next " );
1177 ULONG max = p_pin->media_type_count;
1179 if( ! ppMediaTypes )
1182 if( (! pcFetched) && (cMediaTypes > 1) )
1186 ** use connection media type as first entry in iterator if it exists
1189 if( cx_media_type.subtype != GUID_NULL ) {
1191 if( i_position == 0 ) {
1192 ppMediaTypes[copied] = (AM_MEDIA_TYPE *)CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
1193 if( CopyMediaType(ppMediaTypes[copied], &cx_media_type) != S_OK )
1194 return E_OUTOFMEMORY;
1200 while( (copied < cMediaTypes) && (i_position < max) )
1202 ppMediaTypes[copied] = (AM_MEDIA_TYPE *)CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
1203 if( CopyMediaType(ppMediaTypes[copied], &p_pin->media_types[i_position-offset]) != S_OK )
1204 return E_OUTOFMEMORY;
1212 *pcFetched = copied;
1215 return (copied == cMediaTypes) ? S_OK : S_FALSE;
1217 STDMETHODIMP CaptureEnumMediaTypes::Skip( ULONG cMediaTypes )
1219 ULONG max = p_pin->media_type_count;
1220 if( cx_media_type.subtype != GUID_NULL )
1225 msg_Dbg( p_input, "CaptureEnumMediaTypes::Skip" );
1228 i_position += cMediaTypes;
1229 return (i_position < max) ? S_OK : S_FALSE;
1231 STDMETHODIMP CaptureEnumMediaTypes::Reset()
1234 msg_Dbg( p_input, "CaptureEnumMediaTypes::Reset" );
1237 FreeMediaType(cx_media_type);
1238 CopyMediaType(&cx_media_type, &p_pin->cx_media_type);
1242 STDMETHODIMP CaptureEnumMediaTypes::Clone( IEnumMediaTypes **ppEnum )
1245 msg_Dbg( p_input, "CaptureEnumMediaTypes::Clone" );
1248 *ppEnum = new CaptureEnumMediaTypes( p_input, p_pin, this );
1249 if( *ppEnum == NULL ) return E_OUTOFMEMORY;