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
45 #define FILTER_NAME L"VideoLAN Capture Filter"
46 #define PIN_NAME L"Capture"
48 /*****************************************************************************
50 * Easier to define them hear as mingw doesn't provide them all.
51 *****************************************************************************/
52 const GUID CLSID_SystemDeviceEnum = {0x62be5d10, 0x60eb, 0x11d0, {0xbd, 0x3b, 0x00, 0xa0, 0xc9, 0x11, 0xce, 0x86}};
53 const GUID CLSID_VideoInputDeviceCategory = {0x860BB310,0x5D01,0x11d0,{0xBD,0x3B,0x00,0xA0,0xC9,0x11,0xCE,0x86}};
54 const GUID CLSID_AudioInputDeviceCategory = {0x33d9a762, 0x90c8, 0x11d0, {0xbd, 0x43, 0x00, 0xa0, 0xc9, 0x11, 0xce, 0x86}};
55 const GUID IID_IPropertyBag = {0x55272A00, 0x42CB, 0x11CE, {0x81, 0x35, 0x00, 0xAA, 0x00, 0x4B, 0xB8, 0x51}};
56 const GUID IID_ICreateDevEnum = {0x29840822, 0x5b84, 0x11d0, {0xbd, 0x3b, 0x00, 0xa0, 0xc9, 0x11, 0xce, 0x86}};
57 const GUID IID_IFilterGraph = {0x56a8689f, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
58 const GUID IID_IMediaControl = {0x56a868b1, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
59 const GUID CLSID_FilterGraph = {0xe436ebb3, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
61 const GUID IID_IUnknown = {0x00000000, 0x0000, 0x0000, {0xc0,0x00, 0x00,0x00,0x00,0x00,0x00,0x46}};
62 const GUID IID_IPersist = {0x0000010c, 0x0000, 0x0000, {0xc0,0x00, 0x00,0x00,0x00,0x00,0x00,0x46}};
63 const GUID IID_IMediaFilter = {0x56a86899, 0x0ad4, 0x11ce, {0xb0,0x3a, 0x00,0x20,0xaf,0x0b,0xa7,0x70}};
64 const GUID IID_IBaseFilter = {0x56a86895, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
65 const GUID IID_IPin = {0x56a86891, 0x0ad4, 0x11ce, {0xb0,0x3a, 0x00,0x20,0xaf,0x0b,0xa7,0x70}};
66 const GUID IID_IMemInputPin = {0x56a8689d, 0x0ad4, 0x11ce, {0xb0,0x3a, 0x00,0x20,0xaf,0x0b,0xa7,0x70}};
68 const GUID IID_IEnumPins = {0x56a86892, 0x0ad4, 0x11ce, {0xb0,0x3a, 0x00,0x20,0xaf,0x0b,0xa7,0x70}};
69 const GUID IID_IEnumMediaTypes = {0x89c31040, 0x846b, 0x11ce, {0x97,0xd3, 0x00,0xaa,0x00,0x55,0x59,0x5a}};
71 const GUID IID_IAMBufferNegotiation = {0x56ed71a0, 0xaf5f, 0x11d0, {0xb3, 0xf0, 0x00, 0xaa, 0x00, 0x37, 0x61, 0xc5}};
73 const GUID IID_ISpecifyPropertyPages = {0xb196b28b, 0xbab4, 0x101a, {0xb6, 0x9c, 0x00, 0xaa, 0x00, 0x34, 0x1d, 0x07}};
75 const GUID IID_IQualityControl = {0x56a868a5, 0x0ad4, 0x11ce, {0xb, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
77 const GUID CLSID_CaptureGraphBuilder2 = {0xBF87B6E1, 0x8C27, 0x11d0, {0xB3, 0xF0, 0x0, 0xAA, 0x00, 0x37, 0x61, 0xC5}};
79 const GUID IID_IGraphBuilder = {0x56a868a9, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
81 const GUID IID_ICaptureGraphBuilder2 = {0x93E5A4E0, 0x2D50, 0x11d2, {0xAB, 0xFA, 0x00, 0xA0, 0xC9, 0xC6, 0xE3, 0x8D}};
83 const GUID IID_IAMTVAudio = {0x83EC1C30, 0x23D1, 0x11d1, {0x99, 0xE6, 0x00, 0xA0, 0xC9, 0x56, 0x02, 0x66}};
84 const GUID IID_IAMStreamConfig = {0xC6E13340, 0x30AC, 0x11d0, {0xA1, 0x8C, 0x00, 0xA0, 0xC9, 0x11, 0x89, 0x56}};
85 const GUID IID_IAMCrossbar = {0xC6E13380, 0x30AC, 0x11d0, {0xA1, 0x8C, 0x00, 0xA0, 0xC9, 0x11, 0x89, 0x56}};
86 const GUID IID_IAMTVTuner = {0x211A8766, 0x03AC, 0x11d1, {0x8D, 0x13, 0x00, 0xAA, 0x00, 0xBD, 0x83, 0x39}};
88 const GUID IID_IKsPropertySet = {0x31EFAC30, 0x515C, 0x11d0, {0xA9, 0xAA, 0x00, 0xAA, 0x00, 0x61, 0xBE, 0x93}};
92 const GUID FORMAT_VideoInfo = {0x05589f80, 0xc356, 0x11ce, {0xbf, 0x01, 0x00, 0xaa, 0x00, 0x55, 0x59, 0x5a}};
94 * MEDIATYPEs and MEDIASUBTYPEs
96 const GUID MEDIATYPE_Video = {0x73646976, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
97 const GUID MEDIATYPE_Interleaved = {0x73766169, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
98 const GUID MEDIATYPE_Stream = {0xe436eb83, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
99 const GUID MEDIASUBTYPE_PREVIEW_VIDEO = {0x2859e1da, 0xb81f, 0x4fbd, {0x94, 0x3b, 0xe2, 0x37, 0x24, 0xa1, 0xab, 0xb3}};
101 /* Packed RGB formats */
102 const GUID MEDIASUBTYPE_RGB1 = {0xe436eb78, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
103 const GUID MEDIASUBTYPE_RGB4 = {0xe436eb79, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
104 const GUID MEDIASUBTYPE_RGB8 = {0xe436eb7a, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
105 const GUID MEDIASUBTYPE_RGB565 = {0xe436eb7b, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
106 const GUID MEDIASUBTYPE_RGB555 = {0xe436eb7c, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
107 const GUID MEDIASUBTYPE_RGB24 = {0xe436eb7d, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
108 const GUID MEDIASUBTYPE_RGB32 = {0xe436eb7e, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
109 const GUID MEDIASUBTYPE_ARGB32 = {0x773c9ac0, 0x3274, 0x11d0, {0xb7, 0x24, 0x0, 0xaa, 0x0, 0x6c, 0x1a, 0x1}};
111 /* Packed YUV formats */
112 const GUID MEDIASUBTYPE_YUYV = {0x56595559, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
113 const GUID MEDIASUBTYPE_Y411 = {0x31313459, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
114 const GUID MEDIASUBTYPE_Y211 = {0x31313259, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
115 const GUID MEDIASUBTYPE_YUY2 = {0x32595559, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
116 const GUID MEDIASUBTYPE_YVYU = {0x55595659, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
117 const GUID MEDIASUBTYPE_UYVY = {0x59565955, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
119 /* Planar YUV formats */
120 const GUID MEDIASUBTYPE_YVU9 = {0x39555659, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
121 const GUID MEDIASUBTYPE_YV12 = {0x32315659, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
122 const GUID MEDIASUBTYPE_IYUV = {0x56555949, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}}; /* identical to YV12 */
123 const GUID MEDIASUBTYPE_Y41P = {0x50313459, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
124 const GUID MEDIASUBTYPE_I420 = {0x30323449, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
126 const GUID MEDIATYPE_Audio = {0x73647561, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
127 const GUID FORMAT_WaveFormatEx = {0x05589f81, 0xc356, 0x11ce, {0xbf, 0x01, 0x00, 0xaa, 0x00, 0x55, 0x59, 0x5a}};
128 const GUID MEDIASUBTYPE_PCM = {0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
129 const GUID MEDIASUBTYPE_IEEE_FLOAT = {0x00000003, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
132 const GUID MEDIASUBTYPE_dvsd = {0x64737664, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
133 const GUID MEDIASUBTYPE_dvhd = {0x64687664, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
134 const GUID MEDIASUBTYPE_dvsl = {0x6c737664, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
137 const GUID MEDIASUBTYPE_MPEG2_VIDEO = {0xe06d8026, 0xdb46, 0x11cf, {0xb4, 0xd1, 0x00, 0x80, 0x5f, 0x6c, 0xbb, 0xea}};
138 const GUID MEDIASUBTYPE_MPEG2_PROGRAM = {0xe06d8022, 0xdb46, 0x11cf, {0xb4, 0xd1, 0x00, 0x80, 0x5f, 0x6c, 0xbb, 0xea}};
139 const GUID MEDIASUBTYPE_MPEG2_TRANSPORT = {0xe06d8023, 0xdb46, 0x11cf, {0xb4, 0xd1, 0x00, 0x80, 0x5f, 0x6c, 0xbb, 0xea}};
140 const GUID FORMAT_MPEG2Video = {0xe06d80e3, 0xdb46, 0x11cf, {0xb4, 0xd1, 0x00, 0x80, 0x5f, 0x6c, 0xbb, 0xea}};
143 const GUID FORMAT_AnalogVideo = {0x482dde0, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
145 const GUID MEDIATYPE_AnalogVideo = {0x482dde1, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xab, 0x0, 0x6e, 0xcb, 0x65}};
147 const GUID MEDIASUBTYPE_AnalogVideo_NTSC_M = {0x482dde2, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
148 const GUID MEDIASUBTYPE_AnalogVideo_PAL_B = {0x482dde5, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
149 const GUID MEDIASUBTYPE_AnalogVideo_PAL_D = {0x482dde6, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
150 const GUID MEDIASUBTYPE_AnalogVideo_PAL_G = {0x482dde7, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
151 const GUID MEDIASUBTYPE_AnalogVideo_PAL_H = {0x482dde8, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
152 const GUID MEDIASUBTYPE_AnalogVideo_PAL_I = {0x482dde9, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
153 const GUID MEDIASUBTYPE_AnalogVideo_PAL_M = {0x482ddea, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
154 const GUID MEDIASUBTYPE_AnalogVideo_PAL_N = {0x482ddeb, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
155 const GUID MEDIASUBTYPE_AnalogVideo_PAL_N_COMBO = {0x482ddec, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
156 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_B = {0x482ddf0, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
157 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_D = {0x482ddf1, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
158 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_G = {0x482ddf2, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
159 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_H = {0x482ddf3, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
160 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_K = {0x482ddf4, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
161 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_K1 = {0x482ddf5, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
162 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_L = {0x482ddf6, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
164 const GUID AMPROPSETID_Pin= {0x9b00f101, 0x1567, 0x11d1, {0xb3, 0xf1, 0x0, 0xaa, 0x0, 0x37, 0x61, 0xc5}};
165 const GUID PIN_CATEGORY_ANALOGVIDEOIN= {0xfb6c4283, 0x0353, 0x11d1, {0x90, 0x5f, 0x00, 0x00, 0xc0, 0xcc, 0x16, 0xba}};
166 const GUID PIN_CATEGORY_CAPTURE= {0xfb6c4281, 0x0353, 0x11d1, {0x90, 0x5f, 0x0, 0x0, 0xc0, 0xcc, 0x16, 0xba}};
167 const GUID LOOK_UPSTREAM_ONLY= {0xac798be0, 0x98e3, 0x11d1, {0xb3, 0xf1, 0x0, 0xaa, 0x0, 0x37, 0x61, 0xc}};
169 const GUID GUID_NULL = {0x0000, 0x0000, 0x0000, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}};
171 void WINAPI FreeMediaType( AM_MEDIA_TYPE& mt )
173 if( mt.cbFormat != 0 )
175 CoTaskMemFree( (PVOID)mt.pbFormat );
179 if( mt.pUnk != NULL )
186 HRESULT WINAPI CopyMediaType( AM_MEDIA_TYPE *pmtTarget,
187 const AM_MEDIA_TYPE *pmtSource )
189 *pmtTarget = *pmtSource;
191 if( !pmtSource || !pmtTarget ) return S_FALSE;
193 if( pmtSource->cbFormat && pmtSource->pbFormat )
195 pmtTarget->pbFormat = (PBYTE)CoTaskMemAlloc( pmtSource->cbFormat );
196 if( pmtTarget->pbFormat == NULL )
198 pmtTarget->cbFormat = 0;
199 return E_OUTOFMEMORY;
203 CopyMemory( (PVOID)pmtTarget->pbFormat, (PVOID)pmtSource->pbFormat,
204 pmtTarget->cbFormat );
207 if( pmtTarget->pUnk != NULL )
209 pmtTarget->pUnk->AddRef();
215 int GetFourCCFromMediaType( const AM_MEDIA_TYPE &media_type )
219 if( media_type.majortype == MEDIATYPE_Video )
221 /* currently only support this type of video info format */
222 if( media_type.formattype == FORMAT_VideoInfo )
224 /* Packed RGB formats */
225 if( media_type.subtype == MEDIASUBTYPE_RGB1 )
226 i_fourcc = VLC_FOURCC( 'R', 'G', 'B', '1' );
227 else if( media_type.subtype == MEDIASUBTYPE_RGB4 )
228 i_fourcc = VLC_FOURCC( 'R', 'G', 'B', '4' );
229 else if( media_type.subtype == MEDIASUBTYPE_RGB8 )
230 i_fourcc = VLC_FOURCC( 'R', 'G', 'B', '8' );
231 else if( media_type.subtype == MEDIASUBTYPE_RGB555 )
232 i_fourcc = VLC_FOURCC( 'R', 'V', '1', '5' );
233 else if( media_type.subtype == MEDIASUBTYPE_RGB565 )
234 i_fourcc = VLC_FOURCC( 'R', 'V', '1', '6' );
235 else if( media_type.subtype == MEDIASUBTYPE_RGB24 )
236 i_fourcc = VLC_FOURCC( 'R', 'V', '2', '4' );
237 else if( media_type.subtype == MEDIASUBTYPE_RGB32 )
238 i_fourcc = VLC_FOURCC( 'R', 'V', '3', '2' );
239 else if( media_type.subtype == MEDIASUBTYPE_ARGB32 )
240 i_fourcc = VLC_FOURCC( 'R', 'G', 'B', 'A' );
242 /* Planar YUV formats */
243 else if( media_type.subtype == MEDIASUBTYPE_I420 )
244 i_fourcc = VLC_FOURCC( 'I', '4', '2', '0' );
245 else if( media_type.subtype == MEDIASUBTYPE_Y41P )
246 i_fourcc = VLC_FOURCC( 'I', '4', '1', '1' );
247 else if( media_type.subtype == MEDIASUBTYPE_YV12 )
248 i_fourcc = VLC_FOURCC( 'Y', 'V', '1', '2' );
249 else if( media_type.subtype == MEDIASUBTYPE_IYUV )
250 i_fourcc = VLC_FOURCC( 'Y', 'V', '1', '2' );
251 else if( media_type.subtype == MEDIASUBTYPE_YVU9 )
252 i_fourcc = VLC_FOURCC( 'Y', 'V', 'U', '9' );
254 /* Packed YUV formats */
255 else if( media_type.subtype == MEDIASUBTYPE_YVYU )
256 i_fourcc = VLC_FOURCC( 'Y', 'V', 'Y', 'U' );
257 else if( media_type.subtype == MEDIASUBTYPE_YUYV )
258 i_fourcc = VLC_FOURCC( 'Y', 'U', 'Y', '2' );
259 else if( media_type.subtype == MEDIASUBTYPE_Y411 )
260 i_fourcc = VLC_FOURCC( 'I', '4', '1', 'N' );
261 else if( media_type.subtype == MEDIASUBTYPE_Y211 )
262 i_fourcc = VLC_FOURCC( 'Y', '2', '1', '1' );
263 else if( media_type.subtype == MEDIASUBTYPE_YUY2 )
264 i_fourcc = VLC_FOURCC( 'Y', 'U', 'Y', '2' );
265 else if( media_type.subtype == MEDIASUBTYPE_UYVY )
266 i_fourcc = VLC_FOURCC( 'U', 'Y', 'V', 'Y' );
268 /* MPEG2 video elementary stream */
269 else if( media_type.subtype == MEDIASUBTYPE_MPEG2_VIDEO )
270 i_fourcc = VLC_FOURCC( 'm', 'p', '2', 'v' );
273 else if( media_type.subtype == MEDIASUBTYPE_dvsl )
274 i_fourcc = VLC_FOURCC( 'd', 'v', 's', 'l' );
275 else if( media_type.subtype == MEDIASUBTYPE_dvsd )
276 i_fourcc = VLC_FOURCC( 'd', 'v', 's', 'd' );
277 else if( media_type.subtype == MEDIASUBTYPE_dvhd )
278 i_fourcc = VLC_FOURCC( 'd', 'v', 'h', 'd' );
281 else if( media_type.majortype == MEDIATYPE_Audio )
283 /* currently only support this type of audio info format */
284 if( media_type.formattype == FORMAT_WaveFormatEx )
286 if( media_type.subtype == MEDIASUBTYPE_PCM )
287 i_fourcc = VLC_FOURCC( 'a', 'r', 'a', 'w' );
288 else if( media_type.subtype == MEDIASUBTYPE_IEEE_FLOAT )
289 i_fourcc = VLC_FOURCC( 'f', 'l', '3', '2' );
292 else if( media_type.majortype == MEDIATYPE_Stream )
294 if( media_type.subtype == MEDIASUBTYPE_MPEG2_PROGRAM )
295 i_fourcc = VLC_FOURCC( 'm', 'p', '2', 'p' );
296 else if( media_type.subtype == MEDIASUBTYPE_MPEG2_TRANSPORT )
297 i_fourcc = VLC_FOURCC( 'm', 'p', '2', 't' );
303 /****************************************************************************
304 * Implementation of our dummy directshow filter pin class
305 ****************************************************************************/
307 CapturePin::CapturePin( vlc_object_t *_p_input, access_sys_t *_p_sys,
308 CaptureFilter *_p_filter,
309 AM_MEDIA_TYPE *mt, size_t mt_count )
310 : p_input( _p_input ), p_sys( _p_sys ), p_filter( _p_filter ),
311 p_connected_pin( NULL ), media_types(mt), media_type_count(mt_count),
314 cx_media_type.majortype = mt[0].majortype;
315 cx_media_type.subtype = GUID_NULL;
316 cx_media_type.pbFormat = NULL;
317 cx_media_type.pUnk = NULL;
320 CapturePin::~CapturePin()
323 msg_Dbg( p_input, "CapturePin::~CapturePin" );
325 for( size_t c=0; c<media_type_count; c++ )
327 FreeMediaType(media_types[c]);
329 FreeMediaType(cx_media_type);
332 HRESULT CapturePin::CustomGetSample( VLCMediaSample *vlc_sample )
334 #if 0 //def DEBUG_DSHOW
335 msg_Dbg( p_input, "CapturePin::CustomGetSample" );
338 vlc_mutex_lock( &p_sys->lock );
339 if( samples_queue.size() )
341 *vlc_sample = samples_queue.back();
342 samples_queue.pop_back();
343 vlc_mutex_unlock( &p_sys->lock );
346 vlc_mutex_unlock( &p_sys->lock );
350 AM_MEDIA_TYPE &CapturePin::CustomGetMediaType()
352 return cx_media_type;
355 /* IUnknown methods */
356 STDMETHODIMP CapturePin::QueryInterface(REFIID riid, void **ppv)
359 msg_Dbg( p_input, "CapturePin::QueryInterface" );
362 if( riid == IID_IUnknown ||
369 if( riid == IID_IMemInputPin )
372 *ppv = (IMemInputPin *)this;
378 msg_Dbg( p_input, "CapturePin::QueryInterface() failed for: "
379 "%04X-%02X-%02X-%02X%02X%02X%02X%02X%02X%02X%02X",
380 (int)riid.Data1, (int)riid.Data2, (int)riid.Data3,
381 static_cast<int>(riid.Data4[0]), (int)riid.Data4[1],
382 (int)riid.Data4[2], (int)riid.Data4[3],
383 (int)riid.Data4[4], (int)riid.Data4[5],
384 (int)riid.Data4[6], (int)riid.Data4[7] );
387 return E_NOINTERFACE;
391 STDMETHODIMP_(ULONG) CapturePin::AddRef()
393 #ifdef DEBUG_DSHOW_L1
394 msg_Dbg( p_input, "CapturePin::AddRef (ref: %i)", i_ref );
399 STDMETHODIMP_(ULONG) CapturePin::Release()
401 #ifdef DEBUG_DSHOW_L1
402 msg_Dbg( p_input, "CapturePin::Release (ref: %i)", i_ref );
405 if( !InterlockedDecrement(&i_ref) ) delete this;
411 STDMETHODIMP CapturePin::Connect( IPin * pReceivePin,
412 const AM_MEDIA_TYPE *pmt )
414 if( State_Running == p_filter->state )
416 msg_Dbg( p_input, "CapturePin::Connect [not stopped]" );
417 return VFW_E_NOT_STOPPED;
420 if( p_connected_pin )
422 msg_Dbg( p_input, "CapturePin::Connect [already connected]" );
423 return VFW_E_ALREADY_CONNECTED;
426 if( !pmt ) return S_OK;
428 if( GUID_NULL != pmt->majortype &&
429 media_types[0].majortype != pmt->majortype )
431 msg_Dbg( p_input, "CapturePin::Connect [media major type mismatch]" );
435 if( GUID_NULL != pmt->subtype && !GetFourCCFromMediaType(*pmt) )
437 msg_Dbg( p_input, "CapturePin::Connect [media subtype type "
442 if( pmt->pbFormat && pmt->majortype == MEDIATYPE_Video )
444 if( !((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biHeight ||
445 !((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biWidth )
447 msg_Dbg( p_input, "CapturePin::Connect "
448 "[video width/height == 0 ]" );
453 msg_Dbg( p_input, "CapturePin::Connect [OK]" );
456 STDMETHODIMP CapturePin::ReceiveConnection( IPin * pConnector,
457 const AM_MEDIA_TYPE *pmt )
459 if( State_Stopped != p_filter->state )
461 msg_Dbg( p_input, "CapturePin::ReceiveConnection [not stopped]" );
462 return VFW_E_NOT_STOPPED;
465 if( !pConnector || !pmt )
467 msg_Dbg( p_input, "CapturePin::ReceiveConnection [null pointer]" );
471 if( p_connected_pin )
473 msg_Dbg( p_input, "CapturePin::ReceiveConnection [already connected]");
474 return VFW_E_ALREADY_CONNECTED;
477 if( S_OK != QueryAccept(pmt) )
479 msg_Dbg( p_input, "CapturePin::ReceiveConnection "
480 "[media type not accepted]" );
481 return VFW_E_TYPE_NOT_ACCEPTED;
484 msg_Dbg( p_input, "CapturePin::ReceiveConnection [OK]" );
486 p_connected_pin = pConnector;
487 p_connected_pin->AddRef();
489 FreeMediaType( cx_media_type );
490 return CopyMediaType( &cx_media_type, pmt );
492 STDMETHODIMP CapturePin::Disconnect()
494 if( ! p_connected_pin )
496 msg_Dbg( p_input, "CapturePin::Disconnect [not connected]" );
500 msg_Dbg( p_input, "CapturePin::Disconnect [OK]" );
502 #if 0 // FIXME: This does seem to create crashes sometimes
503 VLCMediaSample vlc_sample;
505 vlc_mutex_lock( &p_sys->lock );
506 while( samples_queue.size() )
508 vlc_sample = samples_queue.back();
509 samples_queue.pop_back();
510 vlc_sample.p_sample->Release();
512 vlc_mutex_unlock( &p_sys->lock );
515 p_connected_pin->Release();
516 p_connected_pin = NULL;
517 //FreeMediaType( cx_media_type );
518 //cx_media_type.subtype = GUID_NULL;
522 STDMETHODIMP CapturePin::ConnectedTo( IPin **pPin )
524 if( !p_connected_pin )
526 msg_Dbg( p_input, "CapturePin::ConnectedTo [not connected]" );
527 return VFW_E_NOT_CONNECTED;
530 p_connected_pin->AddRef();
531 *pPin = p_connected_pin;
533 msg_Dbg( p_input, "CapturePin::ConnectedTo [OK]" );
537 STDMETHODIMP CapturePin::ConnectionMediaType( AM_MEDIA_TYPE *pmt )
539 if( !p_connected_pin )
541 msg_Dbg( p_input, "CapturePin::ConnectionMediaType [not connected]" );
542 return VFW_E_NOT_CONNECTED;
545 return CopyMediaType( pmt, &cx_media_type );
547 STDMETHODIMP CapturePin::QueryPinInfo( PIN_INFO * pInfo )
550 msg_Dbg( p_input, "CapturePin::QueryPinInfo" );
553 pInfo->pFilter = p_filter;
554 if( p_filter ) p_filter->AddRef();
556 memcpy(pInfo->achName, PIN_NAME, sizeof(PIN_NAME));
557 pInfo->dir = PINDIR_INPUT;
561 STDMETHODIMP CapturePin::QueryDirection( PIN_DIRECTION * pPinDir )
564 msg_Dbg( p_input, "CapturePin::QueryDirection" );
567 *pPinDir = PINDIR_INPUT;
570 STDMETHODIMP CapturePin::QueryId( LPWSTR * Id )
573 msg_Dbg( p_input, "CapturePin::QueryId" );
576 *Id = L"VideoLAN Capture Pin";
580 STDMETHODIMP CapturePin::QueryAccept( const AM_MEDIA_TYPE *pmt )
582 if( State_Stopped != p_filter->state )
584 msg_Dbg( p_input, "CapturePin::QueryAccept [not stopped]" );
588 if( media_types[0].majortype != pmt->majortype )
590 msg_Dbg( p_input, "CapturePin::QueryAccept [media type mismatch]" );
594 int i_fourcc = GetFourCCFromMediaType(*pmt);
597 msg_Dbg( p_input, "CapturePin::QueryAccept "
598 "[media type not supported]" );
602 if( pmt->majortype == MEDIATYPE_Video )
605 ( (((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biHeight == 0) ||
606 (((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biWidth == 0) ) )
608 msg_Dbg( p_input, "CapturePin::QueryAccept [video size wxh == 0]");
612 msg_Dbg( p_input, "CapturePin::QueryAccept [OK] "
613 "(width=%ld, height=%ld, chroma=%4.4s)",
614 ((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biWidth,
615 ((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biHeight,
620 msg_Dbg( p_input, "CapturePin::QueryAccept [OK] (channels=%d, "
621 "samples/sec=%lu, bits/samples=%d, format=%4.4s)",
622 ((WAVEFORMATEX *)pmt->pbFormat)->nChannels,
623 ((WAVEFORMATEX *)pmt->pbFormat)->nSamplesPerSec,
624 ((WAVEFORMATEX *)pmt->pbFormat)->wBitsPerSample,
628 if( p_connected_pin )
630 FreeMediaType( cx_media_type );
631 CopyMediaType( &cx_media_type, pmt );
636 STDMETHODIMP CapturePin::EnumMediaTypes( IEnumMediaTypes **ppEnum )
639 msg_Dbg( p_input, "CapturePin::EnumMediaTypes" );
642 *ppEnum = new CaptureEnumMediaTypes( p_input, this, NULL );
644 if( *ppEnum == NULL ) return E_OUTOFMEMORY;
648 STDMETHODIMP CapturePin::QueryInternalConnections( IPin* *apPin, ULONG *nPin )
651 msg_Dbg( p_input, "CapturePin::QueryInternalConnections" );
655 STDMETHODIMP CapturePin::EndOfStream( void )
658 msg_Dbg( p_input, "CapturePin::EndOfStream" );
662 STDMETHODIMP CapturePin::BeginFlush( void )
665 msg_Dbg( p_input, "CapturePin::BeginFlush" );
669 STDMETHODIMP CapturePin::EndFlush( void )
672 msg_Dbg( p_input, "CapturePin::EndFlush" );
676 STDMETHODIMP CapturePin::NewSegment( REFERENCE_TIME tStart,
677 REFERENCE_TIME tStop,
681 msg_Dbg( p_input, "CapturePin::NewSegment" );
686 /* IMemInputPin methods */
687 STDMETHODIMP CapturePin::GetAllocator( IMemAllocator **ppAllocator )
690 msg_Dbg( p_input, "CapturePin::GetAllocator" );
693 return VFW_E_NO_ALLOCATOR;
695 STDMETHODIMP CapturePin::NotifyAllocator( IMemAllocator *pAllocator,
699 msg_Dbg( p_input, "CapturePin::NotifyAllocator" );
704 STDMETHODIMP CapturePin::GetAllocatorRequirements( ALLOCATOR_PROPERTIES *pProps )
707 msg_Dbg( p_input, "CapturePin::GetAllocatorRequirements" );
712 STDMETHODIMP CapturePin::Receive( IMediaSample *pSample )
714 #if 0 //def DEBUG_DSHOW
715 msg_Dbg( p_input, "CapturePin::Receive" );
719 mtime_t i_timestamp = mdate() * 10;
720 VLCMediaSample vlc_sample = {pSample, i_timestamp};
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( vlc_object_t *_p_input, access_sys_t *p_sys,
767 AM_MEDIA_TYPE *mt, size_t mt_count )
768 : p_input( _p_input ),
769 p_pin( new CapturePin( _p_input, p_sys, this, mt, mt_count ) ),
770 state( State_Stopped ), i_ref( 1 )
774 CaptureFilter::~CaptureFilter()
777 msg_Dbg( p_input, "CaptureFilter::~CaptureFilter" );
782 /* IUnknown methods */
783 STDMETHODIMP CaptureFilter::QueryInterface( REFIID riid, void **ppv )
786 msg_Dbg( p_input, "CaptureFilter::QueryInterface" );
789 if( riid == IID_IUnknown )
792 *ppv = (IUnknown *)this;
795 if( riid == IID_IPersist )
798 *ppv = (IPersist *)this;
801 if( riid == IID_IMediaFilter )
804 *ppv = (IMediaFilter *)this;
807 if( riid == IID_IBaseFilter )
810 *ppv = (IBaseFilter *)this;
816 msg_Dbg( p_input, "CaptureFilter::QueryInterface() failed for: "
817 "%04X-%02X-%02X-%02X%02X%02X%02X%02X%02X%02X%02X",
818 (int)riid.Data1, (int)riid.Data2, (int)riid.Data3,
819 static_cast<int>(riid.Data4[0]), (int)riid.Data4[1],
820 (int)riid.Data4[2], (int)riid.Data4[3],
821 (int)riid.Data4[4], (int)riid.Data4[5],
822 (int)riid.Data4[6], (int)riid.Data4[7] );
825 return E_NOINTERFACE;
828 STDMETHODIMP_(ULONG) CaptureFilter::AddRef()
830 #ifdef DEBUG_DSHOW_L1
831 msg_Dbg( p_input, "CaptureFilter::AddRef (ref: %i)", i_ref );
836 STDMETHODIMP_(ULONG) CaptureFilter::Release()
838 #ifdef DEBUG_DSHOW_L1
839 msg_Dbg( p_input, "CaptureFilter::Release (ref: %i)", i_ref );
842 if( !InterlockedDecrement(&i_ref) ) delete this;
847 /* IPersist method */
848 STDMETHODIMP CaptureFilter::GetClassID(CLSID *pClsID)
851 msg_Dbg( p_input, "CaptureFilter::GetClassID" );
856 /* IMediaFilter methods */
857 STDMETHODIMP CaptureFilter::GetState(DWORD dwMSecs, FILTER_STATE *State)
860 msg_Dbg( p_input, "CaptureFilter::GetState %i", state );
866 STDMETHODIMP CaptureFilter::SetSyncSource(IReferenceClock *pClock)
869 msg_Dbg( p_input, "CaptureFilter::SetSyncSource" );
874 STDMETHODIMP CaptureFilter::GetSyncSource(IReferenceClock **pClock)
877 msg_Dbg( p_input, "CaptureFilter::GetSyncSource" );
883 STDMETHODIMP CaptureFilter::Stop()
886 msg_Dbg( p_input, "CaptureFilter::Stop" );
889 state = State_Stopped;
892 STDMETHODIMP CaptureFilter::Pause()
895 msg_Dbg( p_input, "CaptureFilter::Pause" );
898 state = State_Paused;
901 STDMETHODIMP CaptureFilter::Run(REFERENCE_TIME tStart)
904 msg_Dbg( p_input, "CaptureFilter::Run" );
907 state = State_Running;
911 /* IBaseFilter methods */
912 STDMETHODIMP CaptureFilter::EnumPins( IEnumPins ** ppEnum )
915 msg_Dbg( p_input, "CaptureFilter::EnumPins" );
918 /* Create a new ref counted enumerator */
919 *ppEnum = new CaptureEnumPins( p_input, this, NULL );
920 return *ppEnum == NULL ? E_OUTOFMEMORY : NOERROR;
922 STDMETHODIMP CaptureFilter::FindPin( LPCWSTR Id, IPin ** ppPin )
925 msg_Dbg( p_input, "CaptureFilter::FindPin" );
929 STDMETHODIMP CaptureFilter::QueryFilterInfo( FILTER_INFO * pInfo )
932 msg_Dbg( p_input, "CaptureFilter::QueryFilterInfo" );
935 memcpy(pInfo->achName, FILTER_NAME, sizeof(FILTER_NAME));
937 pInfo->pGraph = p_graph;
938 if( p_graph ) p_graph->AddRef();
942 STDMETHODIMP CaptureFilter::JoinFilterGraph( IFilterGraph * pGraph,
946 msg_Dbg( p_input, "CaptureFilter::JoinFilterGraph" );
953 STDMETHODIMP CaptureFilter::QueryVendorInfo( LPWSTR* pVendorInfo )
956 msg_Dbg( p_input, "CaptureFilter::QueryVendorInfo" );
962 CapturePin *CaptureFilter::CustomGetPin()
967 /****************************************************************************
968 * Implementation of our dummy directshow enumpins class
969 ****************************************************************************/
971 CaptureEnumPins::CaptureEnumPins( vlc_object_t *_p_input,
972 CaptureFilter *_p_filter,
973 CaptureEnumPins *pEnumPins )
974 : p_input( _p_input ), p_filter( _p_filter ), i_ref( 1 )
976 /* Hold a reference count on our filter */
979 /* Are we creating a new enumerator */
981 if( pEnumPins == NULL )
987 i_position = pEnumPins->i_position;
991 CaptureEnumPins::~CaptureEnumPins()
994 msg_Dbg( p_input, "CaptureEnumPins::~CaptureEnumPins" );
999 /* IUnknown methods */
1000 STDMETHODIMP CaptureEnumPins::QueryInterface( REFIID riid, void **ppv )
1003 msg_Dbg( p_input, "CaptureEnumPins::QueryInterface" );
1006 if( riid == IID_IUnknown ||
1007 riid == IID_IEnumPins )
1010 *ppv = (IEnumPins *)this;
1016 return E_NOINTERFACE;
1019 STDMETHODIMP_(ULONG) CaptureEnumPins::AddRef()
1021 #ifdef DEBUG_DSHOW_L1
1022 msg_Dbg( p_input, "CaptureEnumPins::AddRef (ref: %i)", i_ref );
1027 STDMETHODIMP_(ULONG) CaptureEnumPins::Release()
1029 #ifdef DEBUG_DSHOW_L1
1030 msg_Dbg( p_input, "CaptureEnumPins::Release (ref: %i)", i_ref );
1033 if( !InterlockedDecrement(&i_ref) ) delete this;
1039 STDMETHODIMP CaptureEnumPins::Next( ULONG cPins, IPin ** ppPins,
1043 msg_Dbg( p_input, "CaptureEnumPins::Next" );
1046 unsigned int i_fetched = 0;
1048 if( i_position < 1 && cPins > 0 )
1050 IPin *pPin = p_filter->CustomGetPin();
1057 if( pcFetched ) *pcFetched = i_fetched;
1059 return (i_fetched == cPins) ? S_OK : S_FALSE;
1061 STDMETHODIMP CaptureEnumPins::Skip( ULONG cPins )
1064 msg_Dbg( p_input, "CaptureEnumPins::Skip" );
1067 i_position += cPins;
1069 if( i_position > 1 )
1076 STDMETHODIMP CaptureEnumPins::Reset()
1079 msg_Dbg( p_input, "CaptureEnumPins::Reset" );
1085 STDMETHODIMP CaptureEnumPins::Clone( IEnumPins **ppEnum )
1088 msg_Dbg( p_input, "CaptureEnumPins::Clone" );
1091 *ppEnum = new CaptureEnumPins( p_input, p_filter, this );
1092 if( *ppEnum == NULL ) return E_OUTOFMEMORY;
1097 /****************************************************************************
1098 * Implementation of our dummy directshow enummediatypes class
1099 ****************************************************************************/
1100 CaptureEnumMediaTypes::CaptureEnumMediaTypes( vlc_object_t *_p_input,
1101 CapturePin *_p_pin, CaptureEnumMediaTypes *pEnumMediaTypes )
1102 : p_input( _p_input ), p_pin( _p_pin ), i_ref( 1 )
1104 /* Hold a reference count on our filter */
1107 /* Are we creating a new enumerator */
1108 if( pEnumMediaTypes == NULL )
1110 CopyMediaType(&cx_media_type, &p_pin->cx_media_type);
1115 CopyMediaType(&cx_media_type, &pEnumMediaTypes->cx_media_type);
1116 i_position = pEnumMediaTypes->i_position;
1120 CaptureEnumMediaTypes::~CaptureEnumMediaTypes()
1123 msg_Dbg( p_input, "CaptureEnumMediaTypes::~CaptureEnumMediaTypes" );
1125 FreeMediaType(cx_media_type);
1129 /* IUnknown methods */
1130 STDMETHODIMP CaptureEnumMediaTypes::QueryInterface( REFIID riid, void **ppv )
1133 msg_Dbg( p_input, "CaptureEnumMediaTypes::QueryInterface" );
1136 if( riid == IID_IUnknown ||
1137 riid == IID_IEnumMediaTypes )
1140 *ppv = (IEnumMediaTypes *)this;
1146 return E_NOINTERFACE;
1149 STDMETHODIMP_(ULONG) CaptureEnumMediaTypes::AddRef()
1151 #ifdef DEBUG_DSHOW_L1
1152 msg_Dbg( p_input, "CaptureEnumMediaTypes::AddRef (ref: %i)", i_ref );
1157 STDMETHODIMP_(ULONG) CaptureEnumMediaTypes::Release()
1159 #ifdef DEBUG_DSHOW_L1
1160 msg_Dbg( p_input, "CaptureEnumMediaTypes::Release (ref: %i)", i_ref );
1163 if( !InterlockedDecrement(&i_ref) ) delete this;
1168 /* IEnumMediaTypes */
1169 STDMETHODIMP CaptureEnumMediaTypes::Next( ULONG cMediaTypes,
1170 AM_MEDIA_TYPE ** ppMediaTypes,
1174 msg_Dbg( p_input, "CaptureEnumMediaTypes::Next " );
1178 ULONG max = p_pin->media_type_count;
1180 if( ! ppMediaTypes )
1183 if( (! pcFetched) && (cMediaTypes > 1) )
1187 ** use connection media type as first entry in iterator if it exists
1190 if( cx_media_type.subtype != GUID_NULL )
1193 if( i_position == 0 )
1195 ppMediaTypes[copied] =
1196 (AM_MEDIA_TYPE *)CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
1197 if( CopyMediaType(ppMediaTypes[copied], &cx_media_type) != S_OK )
1198 return E_OUTOFMEMORY;
1204 while( (copied < cMediaTypes) && (i_position < max) )
1206 ppMediaTypes[copied] =
1207 (AM_MEDIA_TYPE *)CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
1208 if( CopyMediaType( ppMediaTypes[copied],
1209 &p_pin->media_types[i_position-offset]) != S_OK )
1210 return E_OUTOFMEMORY;
1216 if( pcFetched ) *pcFetched = copied;
1218 return (copied == cMediaTypes) ? S_OK : S_FALSE;
1220 STDMETHODIMP CaptureEnumMediaTypes::Skip( ULONG cMediaTypes )
1222 ULONG max = p_pin->media_type_count;
1223 if( cx_media_type.subtype != GUID_NULL )
1228 msg_Dbg( p_input, "CaptureEnumMediaTypes::Skip" );
1231 i_position += cMediaTypes;
1232 return (i_position < max) ? S_OK : S_FALSE;
1234 STDMETHODIMP CaptureEnumMediaTypes::Reset()
1237 msg_Dbg( p_input, "CaptureEnumMediaTypes::Reset" );
1240 FreeMediaType(cx_media_type);
1241 CopyMediaType(&cx_media_type, &p_pin->cx_media_type);
1245 STDMETHODIMP CaptureEnumMediaTypes::Clone( IEnumMediaTypes **ppEnum )
1248 msg_Dbg( p_input, "CaptureEnumMediaTypes::Clone" );
1251 *ppEnum = new CaptureEnumMediaTypes( p_input, p_pin, this );
1252 if( *ppEnum == NULL ) return E_OUTOFMEMORY;