1 /*****************************************************************************
2 * filter.c : DirectShow access module for vlc
3 *****************************************************************************
4 * Copyright (C) 2002-2010 the VideoLAN team
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
32 #include <vlc_common.h>
33 #include <vlc_fourcc.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 here 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 extern const GUID IID_IPropertyBag;
57 const GUID IID_ICreateDevEnum = {0x29840822, 0x5b84, 0x11d0, {0xbd, 0x3b, 0x00, 0xa0, 0xc9, 0x11, 0xce, 0x86}};
58 const GUID IID_IFilterGraph = {0x56a8689f, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
59 const GUID IID_IMediaControl = {0x56a868b1, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
60 const GUID CLSID_FilterGraph = {0xe436ebb3, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
62 //const GUID IID_IUnknown = {0x00000000, 0x0000, 0x0000, {0xc0,0x00, 0x00,0x00,0x00,0x00,0x00,0x46}};
63 extern const GUID IID_IUnknown;
64 //const GUID IID_IPersist = {0x0000010c, 0x0000, 0x0000, {0xc0,0x00, 0x00,0x00,0x00,0x00,0x00,0x46}};
65 extern const GUID IID_IPersist;
66 const GUID IID_IMediaFilter = {0x56a86899, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
67 const GUID IID_IBaseFilter = {0x56a86895, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
68 const GUID IID_IPin = {0x56a86891, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
69 const GUID IID_IMemInputPin = {0x56a8689d, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
70 extern const GUID IID_IMemInputPin;
72 const GUID IID_IEnumPins = {0x56a86892, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
73 const GUID IID_IEnumMediaTypes = {0x89c31040, 0x846b, 0x11ce, {0x97,0xd3, 0x00,0xaa,0x00,0x55,0x59,0x5a}};
75 //const GUID IID_IAMBufferNegotiation = {0x56ed71a0, 0xaf5f, 0x11d0, {0xb3, 0xf0, 0x00, 0xaa, 0x00, 0x37, 0x61, 0xc5}};
77 //const GUID IID_ISpecifyPropertyPages = {0xb196b28b, 0xbab4, 0x101a, {0xb6, 0x9c, 0x00, 0xaa, 0x00, 0x34, 0x1d, 0x07}};
78 extern const GUID IID_ISpecifyPropertyPages;
80 const GUID IID_IQualityControl = {0x56a868a5, 0x0ad4, 0x11ce, {0xb, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
82 const GUID CLSID_CaptureGraphBuilder2 = {0xBF87B6E1, 0x8C27, 0x11d0, {0xB3, 0xF0, 0x0, 0xAA, 0x00, 0x37, 0x61, 0xC5}};
84 const GUID IID_IGraphBuilder = {0x56a868a9, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
86 const GUID IID_ICaptureGraphBuilder2 = {0x93E5A4E0, 0x2D50, 0x11d2, {0xAB, 0xFA, 0x00, 0xA0, 0xC9, 0xC6, 0xE3, 0x8D}};
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}};
118 const GUID MEDIASUBTYPE_HDYC = {0x43594448, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
120 /* Planar YUV formats */
121 const GUID MEDIASUBTYPE_YVU9 = {0x39555659, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
122 const GUID MEDIASUBTYPE_YV12 = {0x32315659, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
123 const GUID MEDIASUBTYPE_IYUV = {0x56555949, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}}; /* identical to YV12 */
124 const GUID MEDIASUBTYPE_Y41P = {0x50313459, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
125 const GUID MEDIASUBTYPE_I420 = {0x30323449, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
127 const GUID MEDIATYPE_Audio = {0x73647561, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
128 const GUID FORMAT_WaveFormatEx = {0x05589f81, 0xc356, 0x11ce, {0xbf, 0x01, 0x00, 0xaa, 0x00, 0x55, 0x59, 0x5a}};
129 const GUID MEDIASUBTYPE_PCM = {0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
130 const GUID MEDIASUBTYPE_IEEE_FLOAT = {0x00000003, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
133 const GUID MEDIASUBTYPE_dvsd = {0x64737664, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
134 const GUID MEDIASUBTYPE_dvhd = {0x64687664, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
135 const GUID MEDIASUBTYPE_dvsl = {0x6c737664, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
136 /* What about Pro formats, like 'dv25', 'dv50' and 'dvh1' */
139 const GUID MEDIASUBTYPE_MPEG2_VIDEO = {0xe06d8026, 0xdb46, 0x11cf, {0xb4, 0xd1, 0x00, 0x80, 0x5f, 0x6c, 0xbb, 0xea}};
140 const GUID MEDIASUBTYPE_MPEG2_PROGRAM = {0xe06d8022, 0xdb46, 0x11cf, {0xb4, 0xd1, 0x00, 0x80, 0x5f, 0x6c, 0xbb, 0xea}};
141 const GUID MEDIASUBTYPE_MPEG2_TRANSPORT = {0xe06d8023, 0xdb46, 0x11cf, {0xb4, 0xd1, 0x00, 0x80, 0x5f, 0x6c, 0xbb, 0xea}};
142 const GUID FORMAT_MPEG2Video = {0xe06d80e3, 0xdb46, 0x11cf, {0xb4, 0xd1, 0x00, 0x80, 0x5f, 0x6c, 0xbb, 0xea}};
145 const GUID MEDIASUBTYPE_MJPG = {0x47504A4D, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
148 const GUID MEDIASUBTYPE_DIVX = {0x58564944, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
151 const GUID FORMAT_AnalogVideo = {0x482dde0, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
153 const GUID MEDIATYPE_AnalogVideo = {0x482dde1, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xab, 0x0, 0x6e, 0xcb, 0x65}};
155 const GUID MEDIASUBTYPE_AnalogVideo_NTSC_M = {0x482dde2, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
156 const GUID MEDIASUBTYPE_AnalogVideo_PAL_B = {0x482dde5, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
157 const GUID MEDIASUBTYPE_AnalogVideo_PAL_D = {0x482dde6, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
158 const GUID MEDIASUBTYPE_AnalogVideo_PAL_G = {0x482dde7, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
159 const GUID MEDIASUBTYPE_AnalogVideo_PAL_H = {0x482dde8, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
160 const GUID MEDIASUBTYPE_AnalogVideo_PAL_I = {0x482dde9, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
161 const GUID MEDIASUBTYPE_AnalogVideo_PAL_M = {0x482ddea, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
162 const GUID MEDIASUBTYPE_AnalogVideo_PAL_N = {0x482ddeb, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
163 const GUID MEDIASUBTYPE_AnalogVideo_PAL_N_COMBO = {0x482ddec, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
164 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_B = {0x482ddf0, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
165 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_D = {0x482ddf1, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
166 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_G = {0x482ddf2, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
167 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_H = {0x482ddf3, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
168 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_K = {0x482ddf4, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
169 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_K1 = {0x482ddf5, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
170 const GUID MEDIASUBTYPE_AnalogVideo_SECAM_L = {0x482ddf6, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
172 const GUID AMPROPSETID_Pin = {0x9b00f101, 0x1567, 0x11d1, {0xb3, 0xf1, 0x0, 0xaa, 0x0, 0x37, 0x61, 0xc5}};
173 const GUID PIN_CATEGORY_ANALOGVIDEOIN = {0xfb6c4283, 0x0353, 0x11d1, {0x90, 0x5f, 0x0, 0x0, 0xc0, 0xcc, 0x16, 0xba}};
174 const GUID PIN_CATEGORY_CAPTURE = {0xfb6c4281, 0x0353, 0x11d1, {0x90, 0x5f, 0x0, 0x0, 0xc0, 0xcc, 0x16, 0xba}};
175 const GUID LOOK_UPSTREAM_ONLY = {0xac798be0, 0x98e3, 0x11d1, {0xb3, 0xf1, 0x0, 0xaa, 0x0, 0x37, 0x61, 0xc}};
177 //const GUID GUID_NULL = {0x0000, 0x0000, 0x0000, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}};
178 extern const GUID GUID_NULL;
180 void WINAPI FreeMediaType( AM_MEDIA_TYPE& mt )
182 if( mt.cbFormat != 0 )
184 CoTaskMemFree( (PVOID)mt.pbFormat );
188 if( mt.pUnk != NULL )
195 HRESULT WINAPI CopyMediaType( AM_MEDIA_TYPE *pmtTarget,
196 const AM_MEDIA_TYPE *pmtSource )
198 *pmtTarget = *pmtSource;
200 if( !pmtSource || !pmtTarget ) return S_FALSE;
202 if( pmtSource->cbFormat && pmtSource->pbFormat )
204 pmtTarget->pbFormat = (PBYTE)CoTaskMemAlloc( pmtSource->cbFormat );
205 if( pmtTarget->pbFormat == NULL )
207 pmtTarget->cbFormat = 0;
208 return E_OUTOFMEMORY;
212 CopyMemory( (PVOID)pmtTarget->pbFormat, (PVOID)pmtSource->pbFormat,
213 pmtTarget->cbFormat );
216 if( pmtTarget->pUnk != NULL )
218 pmtTarget->pUnk->AddRef();
224 int GetFourCCFromMediaType( const AM_MEDIA_TYPE &media_type )
228 if( media_type.majortype == MEDIATYPE_Video )
230 /* currently only support this type of video info format */
231 if( 1 /* media_type.formattype == FORMAT_VideoInfo */ )
233 /* Packed RGB formats */
234 if( media_type.subtype == MEDIASUBTYPE_RGB1 )
235 i_fourcc = VLC_FOURCC( 'R', 'G', 'B', '1' );
236 else if( media_type.subtype == MEDIASUBTYPE_RGB4 )
237 i_fourcc = VLC_FOURCC( 'R', 'G', 'B', '4' );
238 else if( media_type.subtype == MEDIASUBTYPE_RGB8 )
239 i_fourcc = VLC_FOURCC( 'R', 'G', 'B', '8' );
240 else if( media_type.subtype == MEDIASUBTYPE_RGB555 )
241 i_fourcc = VLC_CODEC_RGB15;
242 else if( media_type.subtype == MEDIASUBTYPE_RGB565 )
243 i_fourcc = VLC_CODEC_RGB16;
244 else if( media_type.subtype == MEDIASUBTYPE_RGB24 )
245 i_fourcc = VLC_CODEC_RGB24;
246 else if( media_type.subtype == MEDIASUBTYPE_RGB32 )
247 i_fourcc = VLC_CODEC_RGB32;
248 else if( media_type.subtype == MEDIASUBTYPE_ARGB32 )
249 i_fourcc = VLC_CODEC_RGBA;
251 /* Planar YUV formats */
252 else if( media_type.subtype == MEDIASUBTYPE_I420 )
253 i_fourcc = VLC_CODEC_I420;
254 else if( media_type.subtype == MEDIASUBTYPE_Y41P )
255 i_fourcc = VLC_CODEC_I411;
256 else if( media_type.subtype == MEDIASUBTYPE_YV12 )
257 i_fourcc = VLC_CODEC_YV12;
258 else if( media_type.subtype == MEDIASUBTYPE_IYUV )
259 i_fourcc = VLC_CODEC_YV12;
260 else if( media_type.subtype == MEDIASUBTYPE_YVU9 )
261 i_fourcc = VLC_CODEC_I410;
263 /* Packed YUV formats */
264 else if( media_type.subtype == MEDIASUBTYPE_YVYU )
265 i_fourcc = VLC_CODEC_YVYU;
266 else if( media_type.subtype == MEDIASUBTYPE_YUYV )
267 i_fourcc = VLC_CODEC_YUYV;
268 else if( media_type.subtype == MEDIASUBTYPE_Y411 )
269 i_fourcc = VLC_FOURCC( 'I', '4', '1', 'N' );
270 else if( media_type.subtype == MEDIASUBTYPE_Y211 )
271 i_fourcc = VLC_CODEC_Y211;
272 else if( media_type.subtype == MEDIASUBTYPE_YUY2 )
273 i_fourcc = VLC_CODEC_YUYV;
274 else if( media_type.subtype == MEDIASUBTYPE_UYVY )
275 i_fourcc = VLC_CODEC_UYVY;
276 /* HDYC uses UYVY sample positions but Rec709 colourimetry */
277 /* FIXME: When VLC understands colourspace, something will need
278 * to be added / changed here. Until then, just make it behave
280 else if( media_type.subtype == MEDIASUBTYPE_HDYC )
281 i_fourcc = VLC_CODEC_UYVY;
283 /* MPEG2 video elementary stream */
284 else if( media_type.subtype == MEDIASUBTYPE_MPEG2_VIDEO )
285 i_fourcc = VLC_CODEC_MPGV;
288 else if( media_type.subtype == MEDIASUBTYPE_DIVX )
289 i_fourcc = VLC_CODEC_MP4V;
292 else if( media_type.subtype == MEDIASUBTYPE_dvsl )
293 i_fourcc = VLC_CODEC_DV;
294 else if( media_type.subtype == MEDIASUBTYPE_dvsd )
295 i_fourcc = VLC_CODEC_DV;
296 else if( media_type.subtype == MEDIASUBTYPE_dvhd )
297 i_fourcc = VLC_CODEC_DV;
300 else if( media_type.subtype == MEDIASUBTYPE_MJPG )
301 i_fourcc = VLC_CODEC_MJPG;
305 else if( media_type.majortype == MEDIATYPE_Audio )
307 /* currently only support this type of audio info format */
308 if( media_type.formattype == FORMAT_WaveFormatEx )
310 if( media_type.subtype == MEDIASUBTYPE_PCM )
311 i_fourcc = VLC_FOURCC( 'a', 'r', 'a', 'w' );
312 else if( media_type.subtype == MEDIASUBTYPE_IEEE_FLOAT )
313 i_fourcc = VLC_CODEC_FL32;
316 else if( media_type.majortype == MEDIATYPE_Stream )
318 if( media_type.subtype == MEDIASUBTYPE_MPEG2_PROGRAM )
319 i_fourcc = VLC_FOURCC( 'm', 'p', '2', 'p' );
320 else if( media_type.subtype == MEDIASUBTYPE_MPEG2_TRANSPORT )
321 i_fourcc = VLC_FOURCC( 'm', 'p', '2', 't' );
327 /****************************************************************************
328 * Implementation of our dummy directshow filter pin class
329 ****************************************************************************/
331 CapturePin::CapturePin( vlc_object_t *_p_input, access_sys_t *_p_sys,
332 CaptureFilter *_p_filter,
333 AM_MEDIA_TYPE *mt, size_t mt_count )
334 : p_input( _p_input ), p_sys( _p_sys ), p_filter( _p_filter ),
335 p_connected_pin( NULL ), media_types(mt), media_type_count(mt_count),
338 cx_media_type.majortype = mt[0].majortype;
339 cx_media_type.subtype = GUID_NULL;
340 cx_media_type.pbFormat = NULL;
341 cx_media_type.cbFormat = 0;
342 cx_media_type.pUnk = NULL;
345 CapturePin::~CapturePin()
348 msg_Dbg( p_input, "CapturePin::~CapturePin" );
350 for( size_t c=0; c<media_type_count; c++ )
352 FreeMediaType(media_types[c]);
354 FreeMediaType(cx_media_type);
358 * Returns the complete queue of samples that have been received so far.
359 * Lock the p_sys->lock before calling this function.
360 * @param samples_queue [out] Empty queue that will get all elements from
362 * @return S_OK if a sample was available, S_FALSE if no sample was
365 HRESULT CapturePin::CustomGetSamples( deque<VLCMediaSample> &external_queue )
367 #if 0 //def DEBUG_DSHOW
368 msg_Dbg( p_input, "CapturePin::CustomGetSamples: %d samples in the queue", samples_queue.size());
371 if( !samples_queue.empty() )
373 external_queue.swap(samples_queue);
380 * Returns a sample from its sample queue. Proper locking must be done prior
381 * to this call. Current dshow code protects the access to any sample queue
382 * (audio and video) with the p_sys->lock
383 * @param vlc_sample [out] Address of a sample if sucessfull. Undefined
385 * @return S_OK if a sample was available, S_FALSE if no sample was
388 HRESULT CapturePin::CustomGetSample( VLCMediaSample *vlc_sample )
390 #if 0 //def DEBUG_DSHOW
391 msg_Dbg( p_input, "CapturePin::CustomGetSample" );
394 if( samples_queue.size() )
396 *vlc_sample = samples_queue.back();
397 samples_queue.pop_back();
403 AM_MEDIA_TYPE &CapturePin::CustomGetMediaType()
405 return cx_media_type;
408 /* IUnknown methods */
409 STDMETHODIMP CapturePin::QueryInterface(REFIID riid, void **ppv)
411 #ifdef DEBUG_DSHOW_L1
412 msg_Dbg( p_input, "CapturePin::QueryInterface" );
415 if( riid == IID_IUnknown ||
422 if( riid == IID_IMemInputPin )
425 *ppv = (IMemInputPin *)this;
430 #ifdef DEBUG_DSHOW_L1
431 msg_Dbg( p_input, "CapturePin::QueryInterface() failed for: "
432 "%04X-%02X-%02X-%02X%02X%02X%02X%02X%02X%02X%02X",
433 (int)riid.Data1, (int)riid.Data2, (int)riid.Data3,
434 static_cast<int>(riid.Data4[0]), (int)riid.Data4[1],
435 (int)riid.Data4[2], (int)riid.Data4[3],
436 (int)riid.Data4[4], (int)riid.Data4[5],
437 (int)riid.Data4[6], (int)riid.Data4[7] );
440 return E_NOINTERFACE;
444 STDMETHODIMP_(ULONG) CapturePin::AddRef()
446 #ifdef DEBUG_DSHOW_L1
447 msg_Dbg( p_input, "CapturePin::AddRef (ref: %i)", i_ref );
452 STDMETHODIMP_(ULONG) CapturePin::Release()
454 #ifdef DEBUG_DSHOW_L1
455 msg_Dbg( p_input, "CapturePin::Release (ref: %i)", i_ref );
458 if( !InterlockedDecrement(&i_ref) ) delete this;
464 STDMETHODIMP CapturePin::Connect( IPin * pReceivePin,
465 const AM_MEDIA_TYPE *pmt )
467 if( State_Running == p_filter->state )
469 msg_Dbg( p_input, "CapturePin::Connect [not stopped]" );
470 return VFW_E_NOT_STOPPED;
473 if( p_connected_pin )
475 msg_Dbg( p_input, "CapturePin::Connect [already connected]" );
476 return VFW_E_ALREADY_CONNECTED;
479 if( !pmt ) return S_OK;
481 if( GUID_NULL != pmt->majortype &&
482 media_types[0].majortype != pmt->majortype )
484 msg_Dbg( p_input, "CapturePin::Connect [media major type mismatch]" );
488 if( GUID_NULL != pmt->subtype && !GetFourCCFromMediaType(*pmt) )
490 msg_Dbg( p_input, "CapturePin::Connect [media subtype type "
495 if( pmt->pbFormat && pmt->majortype == MEDIATYPE_Video )
497 if( !((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biHeight ||
498 !((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biWidth )
500 msg_Dbg( p_input, "CapturePin::Connect "
501 "[video width/height == 0 ]" );
506 msg_Dbg( p_input, "CapturePin::Connect [OK]" );
509 STDMETHODIMP CapturePin::ReceiveConnection( IPin * pConnector,
510 const AM_MEDIA_TYPE *pmt )
512 if( State_Stopped != p_filter->state )
514 msg_Dbg( p_input, "CapturePin::ReceiveConnection [not stopped]" );
515 return VFW_E_NOT_STOPPED;
518 if( !pConnector || !pmt )
520 msg_Dbg( p_input, "CapturePin::ReceiveConnection [null pointer]" );
524 if( p_connected_pin )
526 msg_Dbg( p_input, "CapturePin::ReceiveConnection [already connected]");
527 return VFW_E_ALREADY_CONNECTED;
530 if( S_OK != QueryAccept(pmt) )
532 msg_Dbg( p_input, "CapturePin::ReceiveConnection "
533 "[media type not accepted]" );
534 return VFW_E_TYPE_NOT_ACCEPTED;
537 msg_Dbg( p_input, "CapturePin::ReceiveConnection [OK]" );
539 p_connected_pin = pConnector;
540 p_connected_pin->AddRef();
542 FreeMediaType( cx_media_type );
543 return CopyMediaType( &cx_media_type, pmt );
545 STDMETHODIMP CapturePin::Disconnect()
547 if( ! p_connected_pin )
549 msg_Dbg( p_input, "CapturePin::Disconnect [not connected]" );
553 msg_Dbg( p_input, "CapturePin::Disconnect [OK]" );
555 /* samples_queue was already flushed in EndFlush() */
557 p_connected_pin->Release();
558 p_connected_pin = NULL;
559 //FreeMediaType( cx_media_type );
560 //cx_media_type.subtype = GUID_NULL;
564 STDMETHODIMP CapturePin::ConnectedTo( IPin **pPin )
566 if( !p_connected_pin )
568 msg_Dbg( p_input, "CapturePin::ConnectedTo [not connected]" );
569 return VFW_E_NOT_CONNECTED;
572 p_connected_pin->AddRef();
573 *pPin = p_connected_pin;
575 msg_Dbg( p_input, "CapturePin::ConnectedTo [OK]" );
579 STDMETHODIMP CapturePin::ConnectionMediaType( AM_MEDIA_TYPE *pmt )
581 if( !p_connected_pin )
583 msg_Dbg( p_input, "CapturePin::ConnectionMediaType [not connected]" );
584 return VFW_E_NOT_CONNECTED;
587 return CopyMediaType( pmt, &cx_media_type );
589 STDMETHODIMP CapturePin::QueryPinInfo( PIN_INFO * pInfo )
592 msg_Dbg( p_input, "CapturePin::QueryPinInfo" );
595 pInfo->pFilter = p_filter;
596 if( p_filter ) p_filter->AddRef();
598 memcpy(pInfo->achName, PIN_NAME, sizeof(PIN_NAME));
599 pInfo->dir = PINDIR_INPUT;
603 STDMETHODIMP CapturePin::QueryDirection( PIN_DIRECTION * pPinDir )
606 msg_Dbg( p_input, "CapturePin::QueryDirection" );
609 *pPinDir = PINDIR_INPUT;
612 STDMETHODIMP CapturePin::QueryId( LPWSTR * Id )
615 msg_Dbg( p_input, "CapturePin::QueryId" );
618 *Id = (LPWSTR)L"VLC Capture Pin";
622 STDMETHODIMP CapturePin::QueryAccept( const AM_MEDIA_TYPE *pmt )
624 if( State_Stopped != p_filter->state )
626 msg_Dbg( p_input, "CapturePin::QueryAccept [not stopped]" );
630 if( media_types[0].majortype != pmt->majortype )
632 msg_Dbg( p_input, "CapturePin::QueryAccept [media type mismatch]" );
636 int i_fourcc = GetFourCCFromMediaType(*pmt);
639 msg_Dbg( p_input, "CapturePin::QueryAccept "
640 "[media type not supported]" );
644 if( pmt->majortype == MEDIATYPE_Video )
647 ( (((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biHeight == 0) ||
648 (((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biWidth == 0) ) )
650 msg_Dbg( p_input, "CapturePin::QueryAccept [video size wxh == 0]");
654 msg_Dbg( p_input, "CapturePin::QueryAccept [OK] "
655 "(width=%ld, height=%ld, chroma=%4.4s, fps=%f)",
656 ((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biWidth,
657 ((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biHeight,
659 10000000.0f/((float)((VIDEOINFOHEADER *)pmt->pbFormat)->AvgTimePerFrame) );
661 else if( pmt->majortype == MEDIATYPE_Audio )
663 msg_Dbg( p_input, "CapturePin::QueryAccept [OK] (channels=%d, "
664 "samples/sec=%lu, bits/samples=%d, format=%4.4s)",
665 ((WAVEFORMATEX *)pmt->pbFormat)->nChannels,
666 ((WAVEFORMATEX *)pmt->pbFormat)->nSamplesPerSec,
667 ((WAVEFORMATEX *)pmt->pbFormat)->wBitsPerSample,
672 msg_Dbg( p_input, "CapturePin::QueryAccept [OK] (stream format=%4.4s)",
676 if( p_connected_pin )
678 FreeMediaType( cx_media_type );
679 CopyMediaType( &cx_media_type, pmt );
684 STDMETHODIMP CapturePin::EnumMediaTypes( IEnumMediaTypes **ppEnum )
686 #ifdef DEBUG_DSHOW_L1
687 msg_Dbg( p_input, "CapturePin::EnumMediaTypes" );
690 *ppEnum = new CaptureEnumMediaTypes( p_input, this, NULL );
692 if( *ppEnum == NULL ) return E_OUTOFMEMORY;
696 STDMETHODIMP CapturePin::QueryInternalConnections( IPin* *apPin, ULONG *nPin )
698 #ifdef DEBUG_DSHOW_L1
699 msg_Dbg( p_input, "CapturePin::QueryInternalConnections" );
703 STDMETHODIMP CapturePin::EndOfStream( void )
706 msg_Dbg( p_input, "CapturePin::EndOfStream" );
710 STDMETHODIMP CapturePin::BeginFlush( void )
713 msg_Dbg( p_input, "CapturePin::BeginFlush" );
717 STDMETHODIMP CapturePin::EndFlush( void )
720 msg_Dbg( p_input, "CapturePin::EndFlush" );
723 VLCMediaSample vlc_sample;
725 vlc_mutex_lock( &p_sys->lock );
726 while( samples_queue.size() )
728 vlc_sample = samples_queue.back();
729 samples_queue.pop_back();
730 vlc_sample.p_sample->Release();
732 vlc_mutex_unlock( &p_sys->lock );
736 STDMETHODIMP CapturePin::NewSegment( REFERENCE_TIME tStart,
737 REFERENCE_TIME tStop,
741 msg_Dbg( p_input, "CapturePin::NewSegment" );
746 /* IMemInputPin methods */
747 STDMETHODIMP CapturePin::GetAllocator( IMemAllocator **ppAllocator )
750 msg_Dbg( p_input, "CapturePin::GetAllocator" );
753 return VFW_E_NO_ALLOCATOR;
755 STDMETHODIMP CapturePin::NotifyAllocator( IMemAllocator *pAllocator,
759 msg_Dbg( p_input, "CapturePin::NotifyAllocator" );
764 STDMETHODIMP CapturePin::GetAllocatorRequirements( ALLOCATOR_PROPERTIES *pProps )
767 msg_Dbg( p_input, "CapturePin::GetAllocatorRequirements" );
772 STDMETHODIMP CapturePin::Receive( IMediaSample *pSample )
774 #if 0 //def DEBUG_DSHOW
775 msg_Dbg( p_input, "CapturePin::Receive" );
779 mtime_t i_timestamp = mdate() * 10;
780 VLCMediaSample vlc_sample = {pSample, i_timestamp};
782 vlc_mutex_lock( &p_sys->lock );
783 samples_queue.push_front( vlc_sample );
785 /* Make sure we don't cache too many samples */
786 if( samples_queue.size() > 10 )
788 vlc_sample = samples_queue.back();
789 samples_queue.pop_back();
790 msg_Dbg( p_input, "CapturePin::Receive trashing late input sample" );
791 vlc_sample.p_sample->Release();
794 vlc_cond_signal( &p_sys->wait );
795 vlc_mutex_unlock( &p_sys->lock );
799 STDMETHODIMP CapturePin::ReceiveMultiple( IMediaSample **pSamples,
801 long *nSamplesProcessed )
805 *nSamplesProcessed = 0;
806 while( nSamples-- > 0 )
808 hr = Receive( pSamples[*nSamplesProcessed] );
809 if( hr != S_OK ) break;
810 (*nSamplesProcessed)++;
814 STDMETHODIMP CapturePin::ReceiveCanBlock( void )
817 msg_Dbg( p_input, "CapturePin::ReceiveCanBlock" );
820 return S_FALSE; /* Thou shalt not block */
823 /****************************************************************************
824 * Implementation of our dummy directshow filter class
825 ****************************************************************************/
826 CaptureFilter::CaptureFilter( vlc_object_t *_p_input, access_sys_t *p_sys,
827 AM_MEDIA_TYPE *mt, size_t mt_count )
828 : p_input( _p_input ),
829 p_pin( new CapturePin( _p_input, p_sys, this, mt, mt_count ) ),
830 state( State_Stopped ), i_ref( 1 )
834 CaptureFilter::~CaptureFilter()
837 msg_Dbg( p_input, "CaptureFilter::~CaptureFilter" );
842 /* IUnknown methods */
843 STDMETHODIMP CaptureFilter::QueryInterface( REFIID riid, void **ppv )
845 #ifdef DEBUG_DSHOW_L1
846 msg_Dbg( p_input, "CaptureFilter::QueryInterface" );
849 if( riid == IID_IUnknown )
852 *ppv = (IUnknown *)this;
855 if( riid == IID_IPersist )
858 *ppv = (IPersist *)this;
861 if( riid == IID_IMediaFilter )
864 *ppv = (IMediaFilter *)this;
867 if( riid == IID_IBaseFilter )
870 *ppv = (IBaseFilter *)this;
875 #ifdef DEBUG_DSHOW_L1
876 msg_Dbg( p_input, "CaptureFilter::QueryInterface() failed for: "
877 "%04X-%02X-%02X-%02X%02X%02X%02X%02X%02X%02X%02X",
878 (int)riid.Data1, (int)riid.Data2, (int)riid.Data3,
879 static_cast<int>(riid.Data4[0]), (int)riid.Data4[1],
880 (int)riid.Data4[2], (int)riid.Data4[3],
881 (int)riid.Data4[4], (int)riid.Data4[5],
882 (int)riid.Data4[6], (int)riid.Data4[7] );
885 return E_NOINTERFACE;
888 STDMETHODIMP_(ULONG) CaptureFilter::AddRef()
890 #ifdef DEBUG_DSHOW_L1
891 msg_Dbg( p_input, "CaptureFilter::AddRef (ref: %i)", i_ref );
896 STDMETHODIMP_(ULONG) CaptureFilter::Release()
898 #ifdef DEBUG_DSHOW_L1
899 msg_Dbg( p_input, "CaptureFilter::Release (ref: %i)", i_ref );
902 if( !InterlockedDecrement(&i_ref) ) delete this;
907 /* IPersist method */
908 STDMETHODIMP CaptureFilter::GetClassID(CLSID *pClsID)
911 msg_Dbg( p_input, "CaptureFilter::GetClassID" );
916 /* IMediaFilter methods */
917 STDMETHODIMP CaptureFilter::GetState(DWORD dwMSecs, FILTER_STATE *State)
920 msg_Dbg( p_input, "CaptureFilter::GetState %i", state );
926 STDMETHODIMP CaptureFilter::SetSyncSource(IReferenceClock *pClock)
929 msg_Dbg( p_input, "CaptureFilter::SetSyncSource" );
934 STDMETHODIMP CaptureFilter::GetSyncSource(IReferenceClock **pClock)
937 msg_Dbg( p_input, "CaptureFilter::GetSyncSource" );
943 STDMETHODIMP CaptureFilter::Stop()
946 msg_Dbg( p_input, "CaptureFilter::Stop" );
951 state = State_Stopped;
954 STDMETHODIMP CaptureFilter::Pause()
957 msg_Dbg( p_input, "CaptureFilter::Pause" );
960 state = State_Paused;
963 STDMETHODIMP CaptureFilter::Run(REFERENCE_TIME tStart)
966 msg_Dbg( p_input, "CaptureFilter::Run" );
969 state = State_Running;
973 /* IBaseFilter methods */
974 STDMETHODIMP CaptureFilter::EnumPins( IEnumPins ** ppEnum )
977 msg_Dbg( p_input, "CaptureFilter::EnumPins" );
980 /* Create a new ref counted enumerator */
981 *ppEnum = new CaptureEnumPins( p_input, this, NULL );
982 return *ppEnum == NULL ? E_OUTOFMEMORY : NOERROR;
984 STDMETHODIMP CaptureFilter::FindPin( LPCWSTR Id, IPin ** ppPin )
987 msg_Dbg( p_input, "CaptureFilter::FindPin" );
991 STDMETHODIMP CaptureFilter::QueryFilterInfo( FILTER_INFO * pInfo )
994 msg_Dbg( p_input, "CaptureFilter::QueryFilterInfo" );
997 memcpy(pInfo->achName, FILTER_NAME, sizeof(FILTER_NAME));
999 pInfo->pGraph = p_graph;
1000 if( p_graph ) p_graph->AddRef();
1004 STDMETHODIMP CaptureFilter::JoinFilterGraph( IFilterGraph * pGraph,
1008 msg_Dbg( p_input, "CaptureFilter::JoinFilterGraph" );
1015 STDMETHODIMP CaptureFilter::QueryVendorInfo( LPWSTR* pVendorInfo )
1018 msg_Dbg( p_input, "CaptureFilter::QueryVendorInfo" );
1023 /* Custom methods */
1024 CapturePin *CaptureFilter::CustomGetPin()
1029 /****************************************************************************
1030 * Implementation of our dummy directshow enumpins class
1031 ****************************************************************************/
1033 CaptureEnumPins::CaptureEnumPins( vlc_object_t *_p_input,
1034 CaptureFilter *_p_filter,
1035 CaptureEnumPins *pEnumPins )
1036 : p_input( _p_input ), p_filter( _p_filter ), i_ref( 1 )
1038 /* Hold a reference count on our filter */
1041 /* Are we creating a new enumerator */
1043 if( pEnumPins == NULL )
1049 i_position = pEnumPins->i_position;
1053 CaptureEnumPins::~CaptureEnumPins()
1055 #ifdef DEBUG_DSHOW_L1
1056 msg_Dbg( p_input, "CaptureEnumPins::~CaptureEnumPins" );
1058 p_filter->Release();
1061 /* IUnknown methods */
1062 STDMETHODIMP CaptureEnumPins::QueryInterface( REFIID riid, void **ppv )
1064 #ifdef DEBUG_DSHOW_L1
1065 msg_Dbg( p_input, "CaptureEnumPins::QueryInterface" );
1068 if( riid == IID_IUnknown ||
1069 riid == IID_IEnumPins )
1072 *ppv = (IEnumPins *)this;
1078 return E_NOINTERFACE;
1081 STDMETHODIMP_(ULONG) CaptureEnumPins::AddRef()
1083 #ifdef DEBUG_DSHOW_L1
1084 msg_Dbg( p_input, "CaptureEnumPins::AddRef (ref: %i)", i_ref );
1089 STDMETHODIMP_(ULONG) CaptureEnumPins::Release()
1091 #ifdef DEBUG_DSHOW_L1
1092 msg_Dbg( p_input, "CaptureEnumPins::Release (ref: %i)", i_ref );
1095 if( !InterlockedDecrement(&i_ref) ) delete this;
1101 STDMETHODIMP CaptureEnumPins::Next( ULONG cPins, IPin ** ppPins,
1104 #ifdef DEBUG_DSHOW_L1
1105 msg_Dbg( p_input, "CaptureEnumPins::Next" );
1108 unsigned int i_fetched = 0;
1110 if( i_position < 1 && cPins > 0 )
1112 IPin *pPin = p_filter->CustomGetPin();
1119 if( pcFetched ) *pcFetched = i_fetched;
1121 return (i_fetched == cPins) ? S_OK : S_FALSE;
1123 STDMETHODIMP CaptureEnumPins::Skip( ULONG cPins )
1125 #ifdef DEBUG_DSHOW_L1
1126 msg_Dbg( p_input, "CaptureEnumPins::Skip" );
1129 i_position += cPins;
1131 if( i_position > 1 )
1138 STDMETHODIMP CaptureEnumPins::Reset()
1140 #ifdef DEBUG_DSHOW_L1
1141 msg_Dbg( p_input, "CaptureEnumPins::Reset" );
1147 STDMETHODIMP CaptureEnumPins::Clone( IEnumPins **ppEnum )
1149 #ifdef DEBUG_DSHOW_L1
1150 msg_Dbg( p_input, "CaptureEnumPins::Clone" );
1153 *ppEnum = new CaptureEnumPins( p_input, p_filter, this );
1154 if( *ppEnum == NULL ) return E_OUTOFMEMORY;
1159 /****************************************************************************
1160 * Implementation of our dummy directshow enummediatypes class
1161 ****************************************************************************/
1162 CaptureEnumMediaTypes::CaptureEnumMediaTypes( vlc_object_t *_p_input,
1163 CapturePin *_p_pin, CaptureEnumMediaTypes *pEnumMediaTypes )
1164 : p_input( _p_input ), p_pin( _p_pin ), i_ref( 1 )
1166 /* Hold a reference count on our filter */
1169 /* Are we creating a new enumerator */
1170 if( pEnumMediaTypes == NULL )
1172 CopyMediaType(&cx_media_type, &p_pin->cx_media_type);
1177 CopyMediaType(&cx_media_type, &pEnumMediaTypes->cx_media_type);
1178 i_position = pEnumMediaTypes->i_position;
1182 CaptureEnumMediaTypes::~CaptureEnumMediaTypes()
1184 #ifdef DEBUG_DSHOW_L1
1185 msg_Dbg( p_input, "CaptureEnumMediaTypes::~CaptureEnumMediaTypes" );
1187 FreeMediaType(cx_media_type);
1191 /* IUnknown methods */
1192 STDMETHODIMP CaptureEnumMediaTypes::QueryInterface( REFIID riid, void **ppv )
1194 #ifdef DEBUG_DSHOW_L1
1195 msg_Dbg( p_input, "CaptureEnumMediaTypes::QueryInterface" );
1198 if( riid == IID_IUnknown ||
1199 riid == IID_IEnumMediaTypes )
1202 *ppv = (IEnumMediaTypes *)this;
1208 return E_NOINTERFACE;
1211 STDMETHODIMP_(ULONG) CaptureEnumMediaTypes::AddRef()
1213 #ifdef DEBUG_DSHOW_L1
1214 msg_Dbg( p_input, "CaptureEnumMediaTypes::AddRef (ref: %i)", i_ref );
1219 STDMETHODIMP_(ULONG) CaptureEnumMediaTypes::Release()
1221 #ifdef DEBUG_DSHOW_L1
1222 msg_Dbg( p_input, "CaptureEnumMediaTypes::Release (ref: %i)", i_ref );
1225 if( !InterlockedDecrement(&i_ref) ) delete this;
1230 /* IEnumMediaTypes */
1231 STDMETHODIMP CaptureEnumMediaTypes::Next( ULONG cMediaTypes,
1232 AM_MEDIA_TYPE ** ppMediaTypes,
1235 #ifdef DEBUG_DSHOW_L1
1236 msg_Dbg( p_input, "CaptureEnumMediaTypes::Next " );
1240 ULONG max = p_pin->media_type_count;
1242 if( ! ppMediaTypes )
1245 if( (! pcFetched) && (cMediaTypes > 1) )
1249 ** use connection media type as first entry in iterator if it exists
1252 if( cx_media_type.subtype != GUID_NULL )
1255 if( i_position == 0 )
1257 ppMediaTypes[copied] =
1258 (AM_MEDIA_TYPE *)CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
1259 if( CopyMediaType(ppMediaTypes[copied], &cx_media_type) != S_OK )
1260 return E_OUTOFMEMORY;
1266 while( (copied < cMediaTypes) && (i_position < max) )
1268 ppMediaTypes[copied] =
1269 (AM_MEDIA_TYPE *)CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
1270 if( CopyMediaType( ppMediaTypes[copied],
1271 &p_pin->media_types[i_position-offset]) != S_OK )
1272 return E_OUTOFMEMORY;
1278 if( pcFetched ) *pcFetched = copied;
1280 return (copied == cMediaTypes) ? S_OK : S_FALSE;
1282 STDMETHODIMP CaptureEnumMediaTypes::Skip( ULONG cMediaTypes )
1284 ULONG max = p_pin->media_type_count;
1285 if( cx_media_type.subtype != GUID_NULL )
1289 #ifdef DEBUG_DSHOW_L1
1290 msg_Dbg( p_input, "CaptureEnumMediaTypes::Skip" );
1293 i_position += cMediaTypes;
1294 return (i_position < max) ? S_OK : S_FALSE;
1296 STDMETHODIMP CaptureEnumMediaTypes::Reset()
1298 #ifdef DEBUG_DSHOW_L1
1299 msg_Dbg( p_input, "CaptureEnumMediaTypes::Reset" );
1302 FreeMediaType(cx_media_type);
1303 CopyMediaType(&cx_media_type, &p_pin->cx_media_type);
1307 STDMETHODIMP CaptureEnumMediaTypes::Clone( IEnumMediaTypes **ppEnum )
1309 #ifdef DEBUG_DSHOW_L1
1310 msg_Dbg( p_input, "CaptureEnumMediaTypes::Clone" );
1313 *ppEnum = new CaptureEnumMediaTypes( p_input, p_pin, this );
1314 if( *ppEnum == NULL ) return E_OUTOFMEMORY;