git.sesse.net Git - vlc/blob - modules/access/dshow/filter.cpp

   1 /*****************************************************************************
   2  * filter.c : DirectShow access module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2002 VideoLAN
   5  * $Id$
   6  *
   7  * Author: Gildas Bazin <gbazin@videolan.org>
   8  *
   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.
  13  *
  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.
  18  *
  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  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30
  31 #include <vlc/vlc.h>
  32 #include <vlc/input.h>
  33 #include <vlc/vout.h>
  34
  35 #ifndef _MSC_VER
  36     /* Work-around a bug in w32api-2.5 */
  37 #   define QACONTAINERFLAGS QACONTAINERFLAGS_SOMETHINGELSE
  38 #endif
  39
  40 #include "filter.h"
  41
  42 #define DEBUG_DSHOW 1
  43
  44 struct access_sys_t
  45 {
  46     vlc_mutex_t lock;
  47     vlc_cond_t  wait;
  48 };
  49
  50 /*****************************************************************************
  51  * DirectShow GUIDs.
  52  * Easier to define them hear as mingw doesn't provide them all.
  53  *****************************************************************************/
  54 const GUID CLSID_SystemDeviceEnum = {0x62be5d10, 0x60eb, 0x11d0, {0xbd, 0x3b, 0x00, 0xa0, 0xc9, 0x11, 0xce, 0x86}};
  55 const GUID CLSID_VideoInputDeviceCategory = {0x860BB310,0x5D01,0x11d0,{0xBD,0x3B,0x00,0xA0,0xC9,0x11,0xCE,0x86}};
  56 const GUID CLSID_AudioInputDeviceCategory = {0x33d9a762, 0x90c8, 0x11d0, {0xbd, 0x43, 0x00, 0xa0, 0xc9, 0x11, 0xce, 0x86}};
  57 const GUID IID_IPropertyBag = {0x55272A00, 0x42CB, 0x11CE, {0x81, 0x35, 0x00, 0xAA, 0x00, 0x4B, 0xB8, 0x51}};
  58 const GUID IID_ICreateDevEnum = {0x29840822, 0x5b84, 0x11d0, {0xbd, 0x3b, 0x00, 0xa0, 0xc9, 0x11, 0xce, 0x86}};
  59 const GUID IID_IFilterGraph = {0x56a8689f, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
  60 const GUID IID_IMediaControl = {0x56a868b1, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
  61 const GUID CLSID_FilterGraph = {0xe436ebb3, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
  62
  63 const GUID IID_IUnknown = {0x00000000, 0x0000, 0x0000, {0xc0,0x00, 0x00,0x00,0x00,0x00,0x00,0x46}};
  64 const GUID IID_IPersist = {0x0000010c, 0x0000, 0x0000, {0xc0,0x00, 0x00,0x00,0x00,0x00,0x00,0x46}};
  65 const GUID IID_IMediaFilter = {0x56a86899, 0x0ad4, 0x11ce, {0xb0,0x3a, 0x00,0x20,0xaf,0x0b,0xa7,0x70}};
  66 const GUID IID_IBaseFilter = {0x56a86895, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
  67 const GUID IID_IPin = {0x56a86891, 0x0ad4, 0x11ce, {0xb0,0x3a, 0x00,0x20,0xaf,0x0b,0xa7,0x70}};
  68 const GUID IID_IMemInputPin = {0x56a8689d, 0x0ad4, 0x11ce, {0xb0,0x3a, 0x00,0x20,0xaf,0x0b,0xa7,0x70}};
  69
  70 const GUID IID_IEnumPins = {0x56a86892, 0x0ad4, 0x11ce, {0xb0,0x3a, 0x00,0x20,0xaf,0x0b,0xa7,0x70}};
  71 const GUID IID_IEnumMediaTypes = {0x89c31040, 0x846b, 0x11ce, {0x97,0xd3, 0x00,0xaa,0x00,0x55,0x59,0x5a}};
  72
  73 const GUID IID_IAMBufferNegotiation = {0x56ed71a0, 0xaf5f, 0x11d0, {0xb3, 0xf0, 0x00, 0xaa, 0x00, 0x37, 0x61, 0xc5}};
  74
  75 const GUID IID_ISpecifyPropertyPages = {0xb196b28b, 0xbab4, 0x101a, {0xb6, 0x9c, 0x00, 0xaa, 0x00, 0x34, 0x1d, 0x07}};
  76
  77 const GUID IID_IQualityControl = {0x56a868a5, 0x0ad4, 0x11ce, {0xb, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
  78
  79 const GUID CLSID_CaptureGraphBuilder2 = {0xBF87B6E1, 0x8C27, 0x11d0, {0xB3, 0xF0, 0x0, 0xAA, 0x00, 0x37, 0x61, 0xC5}};
  80
  81 const GUID IID_IGraphBuilder = {0x56a868a9, 0x0ad4, 0x11ce, {0xb0, 0x3a, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}};
  82
  83 const GUID IID_ICaptureGraphBuilder2 = {0x93E5A4E0, 0x2D50, 0x11d2, {0xAB, 0xFA, 0x00, 0xA0, 0xC9, 0xC6, 0xE3, 0x8D}};
  84
  85 const GUID IID_IAMTVAudio = {0x83EC1C30, 0x23D1, 0x11d1, {0x99, 0xE6, 0x00, 0xA0, 0xC9, 0x56, 0x02, 0x66}};
  86 const GUID IID_IAMStreamConfig = {0xC6E13340, 0x30AC, 0x11d0, {0xA1, 0x8C, 0x00, 0xA0, 0xC9, 0x11, 0x89, 0x56}};
  87 const GUID IID_IAMCrossbar = {0xC6E13380, 0x30AC, 0x11d0, {0xA1, 0x8C, 0x00, 0xA0, 0xC9, 0x11, 0x89, 0x56}};
  88 const GUID IID_IAMTVTuner = {0x211A8766, 0x03AC, 0x11d1, {0x8D, 0x13, 0x00, 0xAA, 0x00, 0xBD, 0x83, 0x39}};
  89
  90 const GUID IID_IKsPropertySet = {0x31EFAC30, 0x515C, 0x11d0, {0xA9, 0xAA, 0x00, 0xAA, 0x00, 0x61, 0xBE, 0x93}};
  91
  92
  93 /*
  94  * MEDIATYPEs and MEDIASUBTYPEs
  95  */
  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}};
 100
 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}};
 110
 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
 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}};
 125
 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}};
 130
 131 /* DV formats */
 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}};
 135
 136 /* MPEG2 formats */
 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}};
 141
 142 /* Analog Video */
 143 const GUID FORMAT_AnalogVideo = {0x482dde0, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xaa, 0x0, 0x6e, 0xcb, 0x65}};
 144
 145 const GUID MEDIATYPE_AnalogVideo = {0x482dde1, 0x7817, 0x11cf, {0x8a, 0x3, 0x0, 0xab, 0x0, 0x6e, 0xcb, 0x65}};
 146
 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}};
 163
 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}};
 168
 169 const GUID GUID_NULL = {0x0000, 0x0000, 0x0000, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}};
 170
 171 void WINAPI FreeMediaType( AM_MEDIA_TYPE& mt )
 172 {
 173     if( mt.cbFormat != 0 )
 174     {
 175         CoTaskMemFree( (PVOID)mt.pbFormat );
 176         mt.cbFormat = 0;
 177         mt.pbFormat = NULL;
 178     }
 179     if( mt.pUnk != NULL )
 180     {
 181         mt.pUnk->Release();
 182         mt.pUnk = NULL;
 183     }
 184 }
 185
 186 HRESULT WINAPI CopyMediaType( AM_MEDIA_TYPE *pmtTarget,
 187                               const AM_MEDIA_TYPE *pmtSource )
 188 {
 189     *pmtTarget = *pmtSource;
 190     if( pmtSource->cbFormat != 0 )
 191     {
 192         pmtTarget->pbFormat = (PBYTE)CoTaskMemAlloc( pmtSource->cbFormat );
 193         if( pmtTarget->pbFormat == NULL )
 194         {
 195             pmtTarget->cbFormat = 0;
 196             return E_OUTOFMEMORY;
 197         }
 198         else
 199         {
 200             CopyMemory( (PVOID)pmtTarget->pbFormat, (PVOID)pmtSource->pbFormat,
 201                         pmtTarget->cbFormat );
 202         }
 203     }
 204     if( pmtTarget->pUnk != NULL )
 205     {
 206         pmtTarget->pUnk->AddRef();
 207     }
 208
 209     return S_OK;
 210 }
 211
 212 /****************************************************************************
 213  * Implementation of our dummy directshow filter pin class
 214  ****************************************************************************/
 215
 216 CapturePin::CapturePin( input_thread_t * _p_input, CaptureFilter *_p_filter,
 217                         AM_MEDIA_TYPE mt )
 218   : p_input( _p_input ), p_filter( _p_filter ), p_connected_pin( NULL ),
 219     media_type( mt ), i_ref( 1 )
 220 {
 221 }
 222
 223 CapturePin::~CapturePin()
 224 {
 225 #ifdef DEBUG_DSHOW
 226     msg_Dbg( p_input, "CapturePin::~CapturePin" );
 227 #endif
 228 }
 229
 230 HRESULT CapturePin::CustomGetSample( VLCMediaSample *vlc_sample )
 231 {
 232 #if 0 //def DEBUG_DSHOW
 233     msg_Dbg( p_input, "CapturePin::CustomGetSample" );
 234 #endif
 235
 236     access_sys_t *p_sys = p_input->p_access_data;
 237     vlc_mutex_lock( &p_sys->lock );
 238     if( samples_queue.size() )
 239     {
 240         *vlc_sample = samples_queue.back();
 241         samples_queue.pop_back();
 242         vlc_mutex_unlock( &p_sys->lock );
 243         return S_OK;
 244     }
 245     vlc_mutex_unlock( &p_sys->lock );
 246     return S_FALSE;
 247 }
 248
 249 AM_MEDIA_TYPE CapturePin::CustomGetMediaType()
 250 {
 251     return media_type;
 252 }
 253
 254 /* IUnknown methods */
 255 STDMETHODIMP CapturePin::QueryInterface(REFIID riid, void **ppv)
 256 {
 257 #ifdef DEBUG_DSHOW
 258     msg_Dbg( p_input, "CapturePin::QueryInterface" );
 259 #endif
 260
 261     if( riid == IID_IUnknown ||
 262         riid == IID_IPin )
 263     {
 264         AddRef();
 265         *ppv = (IPin *)this;
 266         return NOERROR;
 267     }
 268     if( riid == IID_IMemInputPin )
 269     {
 270         AddRef();
 271         *ppv = (IMemInputPin *)this;
 272         return NOERROR;
 273     }
 274     else
 275     {
 276 #ifdef DEBUG_DSHOW
 277         msg_Dbg( p_input, "CapturePin::QueryInterface() failed for: "
 278                  "%04X-%02X-%02X-%02X%02X%02X%02X%02X%02X%02X%02X",
 279                  (int)riid.Data1, (int)riid.Data2, (int)riid.Data3,
 280                  static_cast<int>(riid.Data4[0]), (int)riid.Data4[1],
 281                  (int)riid.Data4[2], (int)riid.Data4[3],
 282                  (int)riid.Data4[4], (int)riid.Data4[5],
 283                  (int)riid.Data4[6], (int)riid.Data4[7] );
 284 #endif
 285         *ppv = NULL;
 286         return E_NOINTERFACE;
 287     }
 288 }
 289
 290 STDMETHODIMP_(ULONG) CapturePin::AddRef()
 291 {
 292 #ifdef DEBUG_DSHOW_L1
 293     msg_Dbg( p_input, "CapturePin::AddRef (ref: %i)", i_ref );
 294 #endif
 295
 296     return i_ref++;
 297 };
 298 STDMETHODIMP_(ULONG) CapturePin::Release()
 299 {
 300 #ifdef DEBUG_DSHOW_L1
 301     msg_Dbg( p_input, "CapturePin::Release (ref: %i)", i_ref );
 302 #endif
 303
 304     if( !InterlockedDecrement(&i_ref) ) delete this;
 305
 306     return 0;
 307 };
 308
 309 /* IPin methods */
 310 STDMETHODIMP CapturePin::Connect( IPin * pReceivePin,
 311                                   const AM_MEDIA_TYPE *pmt )
 312 {
 313 #ifdef DEBUG_DSHOW
 314     msg_Dbg( p_input, "CapturePin::Connect" );
 315 #endif
 316     return E_NOTIMPL;
 317 }
 318 STDMETHODIMP CapturePin::ReceiveConnection( IPin * pConnector,
 319                                             const AM_MEDIA_TYPE *pmt )
 320 {
 321 #ifdef DEBUG_DSHOW
 322     msg_Dbg( p_input, "CapturePin::ReceiveConnection" );
 323 #endif
 324
 325     if( pmt->majortype == MEDIATYPE_Video )
 326     {
 327         if( media_type.subtype != GUID_NULL &&
 328             media_type.subtype != pmt->subtype )
 329             return VFW_E_TYPE_NOT_ACCEPTED;
 330
 331         if( media_type.pbFormat &&
 332             ((VIDEOINFOHEADER *)media_type.pbFormat)->bmiHeader.biHeight &&
 333             ((VIDEOINFOHEADER *)media_type.pbFormat)->bmiHeader.biHeight !=
 334             ((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biHeight )
 335             return VFW_E_TYPE_NOT_ACCEPTED;
 336
 337         if( media_type.pbFormat &&
 338             ((VIDEOINFOHEADER *)media_type.pbFormat)->bmiHeader.biWidth &&
 339             ((VIDEOINFOHEADER *)media_type.pbFormat)->bmiHeader.biWidth !=
 340             ((VIDEOINFOHEADER *)pmt->pbFormat)->bmiHeader.biWidth )
 341             return VFW_E_TYPE_NOT_ACCEPTED;
 342     }
 343
 344     p_connected_pin = pConnector;
 345     p_connected_pin->AddRef();
 346
 347     FreeMediaType( media_type );
 348     return CopyMediaType( &media_type, pmt );
 349 }
 350 STDMETHODIMP CapturePin::Disconnect()
 351 {
 352 #ifdef DEBUG_DSHOW
 353     msg_Dbg( p_input, "CapturePin::Disconnect" );
 354 #endif
 355
 356 #if 0 // FIXME: This does seem to create crashes sometimes
 357     VLCMediaSample vlc_sample;
 358     access_sys_t *p_sys = p_input->p_access_data;
 359
 360     vlc_mutex_lock( &p_sys->lock );
 361     while( samples_queue.size() )
 362     {
 363         vlc_sample = samples_queue.back();
 364         samples_queue.pop_back();
 365         vlc_sample.p_sample->Release();
 366     }
 367     vlc_mutex_unlock( &p_sys->lock );
 368 #endif
 369
 370     if( p_connected_pin ) p_connected_pin->Release();
 371     p_connected_pin = NULL;
 372     FreeMediaType( media_type );
 373     return S_OK;
 374 }
 375 STDMETHODIMP CapturePin::ConnectedTo( IPin **pPin )
 376 {
 377 #ifdef DEBUG_DSHOW
 378     msg_Dbg( p_input, "CapturePin::ConnectedTo" );
 379 #endif
 380
 381     if( !p_connected_pin ) return VFW_E_NOT_CONNECTED;
 382
 383     p_connected_pin->AddRef();
 384     *pPin = p_connected_pin;
 385
 386     return S_OK;
 387 }
 388 STDMETHODIMP CapturePin::ConnectionMediaType( AM_MEDIA_TYPE *pmt )
 389 {
 390 #ifdef DEBUG_DSHOW
 391     msg_Dbg( p_input, "CapturePin::ConnectionMediaType" );
 392 #endif
 393
 394     return CopyMediaType( pmt, &media_type );
 395 }
 396 STDMETHODIMP CapturePin::QueryPinInfo( PIN_INFO * pInfo )
 397 {
 398 #ifdef DEBUG_DSHOW
 399     msg_Dbg( p_input, "CapturePin::QueryPinInfo" );
 400 #endif
 401
 402     pInfo->pFilter = p_filter;
 403     if( p_filter ) p_filter->AddRef();
 404
 405     pInfo->achName[0] = L'\0';
 406
 407     pInfo->dir = PINDIR_INPUT;
 408
 409     return NOERROR;
 410 }
 411 STDMETHODIMP CapturePin::QueryDirection( PIN_DIRECTION * pPinDir )
 412 {
 413 #ifdef DEBUG_DSHOW
 414     msg_Dbg( p_input, "CapturePin::QueryDirection" );
 415 #endif
 416
 417     *pPinDir = PINDIR_INPUT;
 418     return NOERROR;
 419 }
 420 STDMETHODIMP CapturePin::QueryId( LPWSTR * Id )
 421 {
 422 #ifdef DEBUG_DSHOW
 423     msg_Dbg( p_input, "CapturePin::QueryId" );
 424 #endif
 425     return E_NOTIMPL;
 426 }
 427 STDMETHODIMP CapturePin::QueryAccept( const AM_MEDIA_TYPE *pmt )
 428 {
 429 #ifdef DEBUG_DSHOW
 430     msg_Dbg( p_input, "CapturePin::QueryAccept" );
 431 #endif
 432     if( media_type.subtype == pmt->subtype &&
 433         media_type.majortype == pmt->majortype ) return S_OK;
 434
 435     return S_FALSE;
 436 }
 437 STDMETHODIMP CapturePin::EnumMediaTypes( IEnumMediaTypes **ppEnum )
 438 {
 439 #ifdef DEBUG_DSHOW
 440     msg_Dbg( p_input, "CapturePin::EnumMediaTypes" );
 441 #endif
 442
 443     *ppEnum = new CaptureEnumMediaTypes( p_input, this, NULL );
 444
 445     if( *ppEnum == NULL ) return E_OUTOFMEMORY;
 446
 447     return NOERROR;
 448 }
 449 STDMETHODIMP CapturePin::QueryInternalConnections( IPin* *apPin, ULONG *nPin )
 450 {
 451 #ifdef DEBUG_DSHOW
 452     msg_Dbg( p_input, "CapturePin::QueryInternalConnections" );
 453 #endif
 454     return E_NOTIMPL;
 455 }
 456 STDMETHODIMP CapturePin::EndOfStream( void )
 457 {
 458 #ifdef DEBUG_DSHOW
 459     msg_Dbg( p_input, "CapturePin::EndOfStream" );
 460 #endif
 461     return S_OK;
 462 }
 463 STDMETHODIMP CapturePin::BeginFlush( void )
 464 {
 465 #ifdef DEBUG_DSHOW
 466     msg_Dbg( p_input, "CapturePin::BeginFlush" );
 467 #endif
 468     return S_OK;
 469 }
 470 STDMETHODIMP CapturePin::EndFlush( void )
 471 {
 472 #ifdef DEBUG_DSHOW
 473     msg_Dbg( p_input, "CapturePin::EndFlush" );
 474 #endif
 475     return S_OK;
 476 }
 477 STDMETHODIMP CapturePin::NewSegment( REFERENCE_TIME tStart,
 478                                      REFERENCE_TIME tStop,
 479                                      double dRate )
 480 {
 481 #ifdef DEBUG_DSHOW
 482     msg_Dbg( p_input, "CapturePin::NewSegment" );
 483 #endif
 484     return S_OK;
 485 }
 486
 487 /* IMemInputPin methods */
 488 STDMETHODIMP CapturePin::GetAllocator( IMemAllocator **ppAllocator )
 489 {
 490 #ifdef DEBUG_DSHOW
 491     msg_Dbg( p_input, "CapturePin::GetAllocator" );
 492 #endif
 493
 494     return VFW_E_NO_ALLOCATOR;
 495 }
 496 STDMETHODIMP CapturePin::NotifyAllocator( IMemAllocator *pAllocator,
 497                                           BOOL bReadOnly )
 498 {
 499 #ifdef DEBUG_DSHOW
 500     msg_Dbg( p_input, "CapturePin::NotifyAllocator" );
 501 #endif
 502
 503     return S_OK;
 504 }
 505 STDMETHODIMP CapturePin::GetAllocatorRequirements( ALLOCATOR_PROPERTIES *pProps )
 506 {
 507 #ifdef DEBUG_DSHOW
 508     msg_Dbg( p_input, "CapturePin::GetAllocatorRequirements" );
 509 #endif
 510
 511     return E_NOTIMPL;
 512 }
 513 STDMETHODIMP CapturePin::Receive( IMediaSample *pSample )
 514 {
 515 #if 0 //def DEBUG_DSHOW
 516     msg_Dbg( p_input, "CapturePin::Receive" );
 517 #endif
 518
 519     pSample->AddRef();
 520     mtime_t i_timestamp = mdate() * 10;
 521     VLCMediaSample vlc_sample = {pSample, i_timestamp};
 522
 523     access_sys_t *p_sys = p_input->p_access_data;
 524     vlc_mutex_lock( &p_sys->lock );
 525     samples_queue.push_front( vlc_sample );
 526
 527     /* Make sure we don't cache too many samples */
 528     if( samples_queue.size() > 10 )
 529     {
 530         vlc_sample = samples_queue.back();
 531         samples_queue.pop_back();
 532         msg_Dbg( p_input, "CapturePin::Receive trashing late input sample" );
 533         vlc_sample.p_sample->Release();
 534     }
 535
 536     vlc_cond_signal( &p_sys->wait );
 537     vlc_mutex_unlock( &p_sys->lock );
 538
 539     return S_OK;
 540 }
 541 STDMETHODIMP CapturePin::ReceiveMultiple( IMediaSample **pSamples,
 542                                           long nSamples,
 543                                           long *nSamplesProcessed )
 544 {
 545     HRESULT hr = S_OK;
 546
 547     *nSamplesProcessed = 0;
 548     while( nSamples-- > 0 )
 549     {
 550          hr = Receive( pSamples[*nSamplesProcessed] );
 551          if( hr != S_OK ) break;
 552          (*nSamplesProcessed)++;
 553     }
 554     return hr;
 555 }
 556 STDMETHODIMP CapturePin::ReceiveCanBlock( void )
 557 {
 558 #ifdef DEBUG_DSHOW
 559     msg_Dbg( p_input, "CapturePin::ReceiveCanBlock" );
 560 #endif
 561
 562     return S_FALSE; /* Thou shalt not block */
 563 }
 564
 565 /****************************************************************************
 566  * Implementation of our dummy directshow filter class
 567  ****************************************************************************/
 568
 569 CaptureFilter::CaptureFilter( input_thread_t * _p_input, AM_MEDIA_TYPE mt )
 570   : p_input( _p_input ), p_pin( new CapturePin( _p_input, this, mt ) ),
 571     media_type( mt ), state( State_Stopped ), i_ref( 1 )
 572 {
 573 }
 574
 575 CaptureFilter::~CaptureFilter()
 576 {
 577 #ifdef DEBUG_DSHOW
 578     msg_Dbg( p_input, "CaptureFilter::~CaptureFilter" );
 579 #endif
 580     p_pin->Release();
 581 }
 582
 583 /* IUnknown methods */
 584 STDMETHODIMP CaptureFilter::QueryInterface( REFIID riid, void **ppv )
 585 {
 586 #ifdef DEBUG_DSHOW
 587     msg_Dbg( p_input, "CaptureFilter::QueryInterface" );
 588 #endif
 589
 590     if( riid == IID_IUnknown )
 591     {
 592         AddRef();
 593         *ppv = (IUnknown *)this;
 594         return NOERROR;
 595     }
 596     if( riid == IID_IPersist )
 597     {
 598         AddRef();
 599         *ppv = (IPersist *)this;
 600         return NOERROR;
 601     }
 602     if( riid == IID_IMediaFilter )
 603     {
 604         AddRef();
 605         *ppv = (IMediaFilter *)this;
 606         return NOERROR;
 607     }
 608     if( riid == IID_IBaseFilter )
 609     {
 610         AddRef();
 611         *ppv = (IBaseFilter *)this;
 612         return NOERROR;
 613     }
 614     else
 615     {
 616         *ppv = NULL;
 617         return E_NOINTERFACE;
 618     }
 619 };
 620 STDMETHODIMP_(ULONG) CaptureFilter::AddRef()
 621 {
 622 #ifdef DEBUG_DSHOW_L1
 623     msg_Dbg( p_input, "CaptureFilter::AddRef (ref: %i)", i_ref );
 624 #endif
 625
 626     return i_ref++;
 627 };
 628 STDMETHODIMP_(ULONG) CaptureFilter::Release()
 629 {
 630 #ifdef DEBUG_DSHOW_L1
 631     msg_Dbg( p_input, "CaptureFilter::Release (ref: %i)", i_ref );
 632 #endif
 633
 634     if( !InterlockedDecrement(&i_ref) ) delete this;
 635
 636     return 0;
 637 };
 638
 639 /* IPersist method */
 640 STDMETHODIMP CaptureFilter::GetClassID(CLSID *pClsID)
 641 {
 642 #ifdef DEBUG_DSHOW
 643     msg_Dbg( p_input, "CaptureFilter::GetClassID" );
 644 #endif
 645     return E_NOTIMPL;
 646 };
 647
 648 /* IMediaFilter methods */
 649 STDMETHODIMP CaptureFilter::GetState(DWORD dwMSecs, FILTER_STATE *State)
 650 {
 651 #ifdef DEBUG_DSHOW
 652     msg_Dbg( p_input, "CaptureFilter::GetState %i", state );
 653 #endif
 654
 655     *State = state;
 656     return S_OK;
 657 };
 658 STDMETHODIMP CaptureFilter::SetSyncSource(IReferenceClock *pClock)
 659 {
 660 #ifdef DEBUG_DSHOW
 661     msg_Dbg( p_input, "CaptureFilter::SetSyncSource" );
 662 #endif
 663
 664     return S_OK;
 665 };
 666 STDMETHODIMP CaptureFilter::GetSyncSource(IReferenceClock **pClock)
 667 {
 668 #ifdef DEBUG_DSHOW
 669     msg_Dbg( p_input, "CaptureFilter::GetSyncSource" );
 670 #endif
 671
 672     *pClock = NULL;
 673     return NOERROR;
 674 };
 675 STDMETHODIMP CaptureFilter::Stop()
 676 {
 677 #ifdef DEBUG_DSHOW
 678     msg_Dbg( p_input, "CaptureFilter::Stop" );
 679 #endif
 680
 681     state = State_Stopped;
 682     return S_OK;
 683 };
 684 STDMETHODIMP CaptureFilter::Pause()
 685 {
 686 #ifdef DEBUG_DSHOW
 687     msg_Dbg( p_input, "CaptureFilter::Pause" );
 688 #endif
 689
 690     state = State_Paused;
 691     return S_OK;
 692 };
 693 STDMETHODIMP CaptureFilter::Run(REFERENCE_TIME tStart)
 694 {
 695 #ifdef DEBUG_DSHOW
 696     msg_Dbg( p_input, "CaptureFilter::Run" );
 697 #endif
 698
 699     state = State_Running;
 700     return S_OK;
 701 };
 702
 703 /* IBaseFilter methods */
 704 STDMETHODIMP CaptureFilter::EnumPins( IEnumPins ** ppEnum )
 705 {
 706 #ifdef DEBUG_DSHOW
 707     msg_Dbg( p_input, "CaptureFilter::EnumPins" );
 708 #endif
 709
 710     /* Create a new ref counted enumerator */
 711     *ppEnum = new CaptureEnumPins( p_input, this, NULL );
 712     return *ppEnum == NULL ? E_OUTOFMEMORY : NOERROR;
 713 };
 714 STDMETHODIMP CaptureFilter::FindPin( LPCWSTR Id, IPin ** ppPin )
 715 {
 716 #ifdef DEBUG_DSHOW
 717     msg_Dbg( p_input, "CaptureFilter::FindPin" );
 718 #endif
 719     return E_NOTIMPL;
 720 };
 721 STDMETHODIMP CaptureFilter::QueryFilterInfo( FILTER_INFO * pInfo )
 722 {
 723 #ifdef DEBUG_DSHOW
 724     msg_Dbg( p_input, "CaptureFilter::QueryFilterInfo" );
 725 #endif
 726
 727     pInfo->achName[0] = L'\0';
 728
 729     pInfo->pGraph = p_graph;
 730     if( p_graph ) p_graph->AddRef();
 731
 732     return NOERROR;
 733 };
 734 STDMETHODIMP CaptureFilter::JoinFilterGraph( IFilterGraph * pGraph,
 735                                              LPCWSTR pName )
 736 {
 737 #ifdef DEBUG_DSHOW
 738     msg_Dbg( p_input, "CaptureFilter::JoinFilterGraph" );
 739 #endif
 740
 741     p_graph = pGraph;
 742
 743     return NOERROR;
 744 };
 745 STDMETHODIMP CaptureFilter::QueryVendorInfo( LPWSTR* pVendorInfo )
 746 {
 747 #ifdef DEBUG_DSHOW
 748     msg_Dbg( p_input, "CaptureFilter::QueryVendorInfo" );
 749 #endif
 750     return E_NOTIMPL;
 751 };
 752
 753 /* Custom methods */
 754 CapturePin *CaptureFilter::CustomGetPin()
 755 {
 756     return p_pin;
 757 }
 758
 759 /****************************************************************************
 760  * Implementation of our dummy directshow enumpins class
 761  ****************************************************************************/
 762
 763 CaptureEnumPins::CaptureEnumPins( input_thread_t * _p_input,
 764                                   CaptureFilter *_p_filter,
 765                                   CaptureEnumPins *pEnumPins )
 766   : p_input( _p_input ), p_filter( _p_filter ), i_ref( 1 )
 767 {
 768     /* Hold a reference count on our filter */
 769     p_filter->AddRef();
 770
 771     /* Are we creating a new enumerator */
 772
 773     if( pEnumPins == NULL )
 774     {
 775         i_position = 0;
 776     }
 777     else
 778     {
 779         i_position = pEnumPins->i_position;
 780     }
 781 }
 782
 783 CaptureEnumPins::~CaptureEnumPins()
 784 {
 785 #ifdef DEBUG_DSHOW
 786     msg_Dbg( p_input, "CaptureEnumPins::~CaptureEnumPins" );
 787 #endif
 788     p_filter->Release();
 789 }
 790
 791 /* IUnknown methods */
 792 STDMETHODIMP CaptureEnumPins::QueryInterface( REFIID riid, void **ppv )
 793 {
 794 #ifdef DEBUG_DSHOW
 795     msg_Dbg( p_input, "CaptureEnumPins::QueryInterface" );
 796 #endif
 797
 798     if( riid == IID_IUnknown ||
 799         riid == IID_IEnumPins )
 800     {
 801         AddRef();
 802         *ppv = (IEnumPins *)this;
 803         return NOERROR;
 804     }
 805     else
 806     {
 807         *ppv = NULL;
 808         return E_NOINTERFACE;
 809     }
 810 };
 811 STDMETHODIMP_(ULONG) CaptureEnumPins::AddRef()
 812 {
 813 #ifdef DEBUG_DSHOW_L1
 814     msg_Dbg( p_input, "CaptureEnumPins::AddRef (ref: %i)", i_ref );
 815 #endif
 816
 817     return i_ref++;
 818 };
 819 STDMETHODIMP_(ULONG) CaptureEnumPins::Release()
 820 {
 821 #ifdef DEBUG_DSHOW_L1
 822     msg_Dbg( p_input, "CaptureEnumPins::Release (ref: %i)", i_ref );
 823 #endif
 824
 825     if( !InterlockedDecrement(&i_ref) ) delete this;
 826
 827     return 0;
 828 };
 829
 830 /* IEnumPins */
 831 STDMETHODIMP CaptureEnumPins::Next( ULONG cPins, IPin ** ppPins,
 832                                     ULONG * pcFetched )
 833 {
 834 #ifdef DEBUG_DSHOW
 835     msg_Dbg( p_input, "CaptureEnumPins::Next" );
 836 #endif
 837
 838     unsigned int i_fetched = 0;
 839
 840     if( i_position < 1 && cPins > 0 )
 841     {
 842         IPin *pPin = p_filter->CustomGetPin();
 843         *ppPins = pPin;
 844         pPin->AddRef();
 845         i_fetched = 1;
 846         i_position++;
 847     }
 848
 849     if( pcFetched ) *pcFetched = i_fetched;
 850
 851     return (i_fetched == cPins) ? S_OK : S_FALSE;
 852 };
 853 STDMETHODIMP CaptureEnumPins::Skip( ULONG cPins )
 854 {
 855 #ifdef DEBUG_DSHOW
 856     msg_Dbg( p_input, "CaptureEnumPins::Skip" );
 857 #endif
 858
 859     i_position += cPins;
 860
 861     if( i_position > 1 )
 862     {
 863         return S_FALSE;
 864     }
 865
 866     return S_OK;
 867 };
 868 STDMETHODIMP CaptureEnumPins::Reset()
 869 {
 870 #ifdef DEBUG_DSHOW
 871     msg_Dbg( p_input, "CaptureEnumPins::Reset" );
 872 #endif
 873
 874     i_position = 0;
 875     return S_OK;
 876 };
 877 STDMETHODIMP CaptureEnumPins::Clone( IEnumPins **ppEnum )
 878 {
 879 #ifdef DEBUG_DSHOW
 880     msg_Dbg( p_input, "CaptureEnumPins::Clone" );
 881 #endif
 882
 883     *ppEnum = new CaptureEnumPins( p_input, p_filter, this );
 884     if( *ppEnum == NULL ) return E_OUTOFMEMORY;
 885
 886     return NOERROR;
 887 };
 888
 889 /****************************************************************************
 890  * Implementation of our dummy directshow enummediatypes class
 891  ****************************************************************************/
 892
 893 CaptureEnumMediaTypes::CaptureEnumMediaTypes( input_thread_t * _p_input,
 894                                   CapturePin *_p_pin,
 895                                   CaptureEnumMediaTypes *pEnumMediaTypes )
 896   : p_input( _p_input ), p_pin( _p_pin ), i_ref( 1 )
 897 {
 898     /* Hold a reference count on our filter */
 899     p_pin->AddRef();
 900
 901     /* Are we creating a new enumerator */
 902     if( pEnumMediaTypes == NULL )
 903     {
 904         i_position = 0;
 905     }
 906     else
 907     {
 908         i_position = pEnumMediaTypes->i_position;
 909     }
 910 }
 911
 912 CaptureEnumMediaTypes::~CaptureEnumMediaTypes()
 913 {
 914 #ifdef DEBUG_DSHOW
 915     msg_Dbg( p_input, "CaptureEnumMediaTypes::~CaptureEnumMediaTypes" );
 916 #endif
 917     p_pin->Release();
 918 }
 919
 920 /* IUnknown methods */
 921 STDMETHODIMP CaptureEnumMediaTypes::QueryInterface( REFIID riid, void **ppv )
 922 {
 923 #ifdef DEBUG_DSHOW
 924     msg_Dbg( p_input, "CaptureEnumMediaTypes::QueryInterface" );
 925 #endif
 926
 927     if( riid == IID_IUnknown ||
 928         riid == IID_IEnumMediaTypes )
 929     {
 930         AddRef();
 931         *ppv = (IEnumMediaTypes *)this;
 932         return NOERROR;
 933     }
 934     else
 935     {
 936         *ppv = NULL;
 937         return E_NOINTERFACE;
 938     }
 939 };
 940 STDMETHODIMP_(ULONG) CaptureEnumMediaTypes::AddRef()
 941 {
 942 #ifdef DEBUG_DSHOW_L1
 943     msg_Dbg( p_input, "CaptureEnumMediaTypes::AddRef (ref: %i)", i_ref );
 944 #endif
 945
 946     return i_ref++;
 947 };
 948 STDMETHODIMP_(ULONG) CaptureEnumMediaTypes::Release()
 949 {
 950 #ifdef DEBUG_DSHOW_L1
 951     msg_Dbg( p_input, "CaptureEnumMediaTypes::Release (ref: %i)", i_ref );
 952 #endif
 953
 954     if( !InterlockedDecrement(&i_ref) ) delete this;
 955
 956     return 0;
 957 };
 958
 959 /* IEnumMediaTypes */
 960 STDMETHODIMP CaptureEnumMediaTypes::Next( ULONG cMediaTypes,
 961                                           AM_MEDIA_TYPE ** ppMediaTypes,
 962                                           ULONG * pcFetched )
 963 {
 964 #ifdef DEBUG_DSHOW
 965     msg_Dbg( p_input, "CaptureEnumMediaTypes::Next" );
 966 #endif
 967
 968     if( pcFetched ) *pcFetched = 0;
 969
 970     if( cMediaTypes > 0 )
 971     {
 972         if( 0 == i_position++ )
 973         {
 974             AM_MEDIA_TYPE mediaType = p_pin->CustomGetMediaType();
 975             ppMediaTypes[0] = (AM_MEDIA_TYPE *)CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
 976             if( CopyMediaType(ppMediaTypes[0], &mediaType) != S_OK )
 977                 return E_OUTOFMEMORY;
 978
 979             if( pcFetched ) *pcFetched = 1;
 980             if( cMediaTypes == 1 ) return S_OK;
 981         }
 982
 983         return S_FALSE;
 984     }
 985
 986     return S_OK;
 987 };
 988 STDMETHODIMP CaptureEnumMediaTypes::Skip( ULONG cMediaTypes )
 989 {
 990 #ifdef DEBUG_DSHOW
 991     msg_Dbg( p_input, "CaptureEnumMediaTypes::Skip" );
 992 #endif
 993
 994     return S_FALSE;
 995 };
 996 STDMETHODIMP CaptureEnumMediaTypes::Reset()
 997 {
 998 #ifdef DEBUG_DSHOW
 999     msg_Dbg( p_input, "CaptureEnumMediaTypes::Reset" );
1000 #endif
1001
1002     i_position = 0;
1003     return S_OK;
1004 };
1005 STDMETHODIMP CaptureEnumMediaTypes::Clone( IEnumMediaTypes **ppEnum )
1006 {
1007 #ifdef DEBUG_DSHOW
1008     msg_Dbg( p_input, "CaptureEnumMediaTypes::Clone" );
1009 #endif
1010
1011     *ppEnum = new CaptureEnumMediaTypes( p_input, p_pin, this );
1012     if( *ppEnum == NULL ) return E_OUTOFMEMORY;
1013
1014     return NOERROR;
1015 };