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

   1 /*****************************************************************************
   2  * dshow.cpp : DirectShow access and access_demux module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2002-2004, 2006, 2008, 2010 the VideoLAN team
   5  * $Id$
   6  *
   7  * Author: Gildas Bazin <gbazin@videolan.org>
   8  *         Damien Fouilleul <damienf@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #define __STDC_CONSTANT_MACROS 1
  34 #define __STDC_FORMAT_MACROS 1
  35 #define CFG_PREFIX "dshow-"
  36 #include <inttypes.h>
  37 #include <list>
  38 #include <string>
  39 #include <assert.h>
  40
  41 #include <vlc_common.h>
  42 #include <vlc_plugin.h>
  43 #include <vlc_access.h>
  44 #include <vlc_demux.h>
  45
  46 #include <vlc_dialog.h>      /* dialog_Fatal */
  47 #include <vlc_charset.h>     /* FromWide */
  48
  49 #include <initguid.h>
  50 #include "vlc_dshow.h"
  51
  52 #include "access.h"
  53 #include "filter.h"
  54
  55 #define INSTANCEDATA_OF_PROPERTY_PTR(x) ((PKSPROPERTY((x))) + 1)
  56 #define INSTANCEDATA_OF_PROPERTY_SIZE(x) (sizeof((x)) - sizeof(KSPROPERTY))
  57
  58 /*****************************************************************************
  59  * Access: local prototypes
  60  *****************************************************************************/
  61 static block_t *ReadCompressed( access_t * );
  62 static int AccessControl ( access_t *, int, va_list );
  63
  64 static int Demux       ( demux_t * );
  65 static int DemuxControl( demux_t *, int, va_list );
  66
  67 static int OpenDevice( vlc_object_t *, access_sys_t *, string, bool );
  68 static IBaseFilter *FindCaptureDevice( vlc_object_t *, string *,
  69                                        list<string> *, bool );
  70 static size_t EnumDeviceCaps( vlc_object_t *, IBaseFilter *,
  71                               int, int, int, int, int, int,
  72                               AM_MEDIA_TYPE *mt, size_t );
  73 static bool ConnectFilters( vlc_object_t *, access_sys_t *,
  74                             IBaseFilter *, CaptureFilter * );
  75 static int FindDevices( vlc_object_t *, const char *, char ***, char *** );
  76 static int ConfigDevicesCallback( vlc_object_t *, char const *,
  77                                   vlc_value_t, vlc_value_t, void * );
  78
  79 static void ShowPropertyPage( IUnknown * );
  80 static void ShowDeviceProperties( vlc_object_t *, ICaptureGraphBuilder2 *,
  81                                   IBaseFilter *, bool );
  82 static void ShowTunerProperties( vlc_object_t *, ICaptureGraphBuilder2 *,
  83                                  IBaseFilter *, bool );
  84 static void ConfigTuner( vlc_object_t *, ICaptureGraphBuilder2 *,
  85                          IBaseFilter * );
  86
  87 /*****************************************************************************
  88  * Module descriptor
  89  *****************************************************************************/
  90 static const int pi_tuner_input[] = { 0, 1, 2 };
  91 static const char *const ppsz_tuner_input_text[] =
  92     {N_("Default"), N_("Cable"), N_("Antenna")};
  93
  94 static const int pi_amtuner_mode[]  = { AMTUNER_MODE_DEFAULT,
  95                                         AMTUNER_MODE_TV,
  96                                         AMTUNER_MODE_FM_RADIO,
  97                                         AMTUNER_MODE_AM_RADIO,
  98                                         AMTUNER_MODE_DSS };
  99 static const char *const ppsz_amtuner_mode_text[] = { N_("Default"),
 100                                           N_("TV"),
 101                                           N_("FM radio"),
 102                                           N_("AM radio"),
 103                                           N_("DSS") };
 104
 105 static const int i_standards_list[] =
 106     {
 107         KS_AnalogVideo_None,
 108         KS_AnalogVideo_NTSC_M, KS_AnalogVideo_NTSC_M_J, KS_AnalogVideo_NTSC_433,
 109         KS_AnalogVideo_PAL_B, KS_AnalogVideo_PAL_D, KS_AnalogVideo_PAL_G,
 110         KS_AnalogVideo_PAL_H, KS_AnalogVideo_PAL_I, KS_AnalogVideo_PAL_M,
 111         KS_AnalogVideo_PAL_N, KS_AnalogVideo_PAL_60,
 112         KS_AnalogVideo_SECAM_B, KS_AnalogVideo_SECAM_D, KS_AnalogVideo_SECAM_G,
 113         KS_AnalogVideo_SECAM_H, KS_AnalogVideo_SECAM_K, KS_AnalogVideo_SECAM_K1,
 114         KS_AnalogVideo_SECAM_L, KS_AnalogVideo_SECAM_L1,
 115         KS_AnalogVideo_PAL_N_COMBO
 116     };
 117 static const char *const ppsz_standards_list_text[] =
 118     {
 119         N_("Default"),
 120         "NTSC_M", "NTSC_M_J", "NTSC_443",
 121         "PAL_B", "PAL_D", "PAL_G",
 122         "PAL_H", "PAL_I", "PAL_M",
 123         "PAL_N", "PAL_60",
 124         "SECAM_B", "SECAM_D", "SECAM_G",
 125         "SECAM_H", "SECAM_K", "SECAM_K1",
 126         "SECAM_L", "SECAM_L1",
 127         "PAL_N_COMBO"
 128     };
 129
 130 #define VDEV_TEXT N_("Video device name")
 131 #define VDEV_LONGTEXT N_( \
 132     "Name of the video device that will be used by the " \
 133     "DirectShow plugin. If you don't specify anything, the default device " \
 134     "will be used.")
 135 #define ADEV_TEXT N_("Audio device name")
 136 #define ADEV_LONGTEXT N_( \
 137     "Name of the audio device that will be used by the " \
 138     "DirectShow plugin. If you don't specify anything, the default device " \
 139     "will be used. ")
 140 #define SIZE_TEXT N_("Video size")
 141 #define SIZE_LONGTEXT N_( \
 142     "Size of the video that will be displayed by the " \
 143     "DirectShow plugin. If you don't specify anything the default size for " \
 144     "your device will be used. You can specify a standard size (cif, d1, ...) or <width>x<height>.")
 145 #define ASPECT_TEXT N_("Picture aspect-ratio n:m")
 146 #define ASPECT_LONGTEXT N_("Define input picture aspect-ratio to use. Default is 4:3" )
 147 #define CHROMA_TEXT N_("Video input chroma format")
 148 #define CHROMA_LONGTEXT N_( \
 149     "Force the DirectShow video input to use a specific chroma format " \
 150     "(eg. I420 (default), RV24, etc.)")
 151 #define FPS_TEXT N_("Video input frame rate")
 152 #define FPS_LONGTEXT N_( \
 153     "Force the DirectShow video input to use a specific frame rate " \
 154     "(eg. 0 means default, 25, 29.97, 50, 59.94, etc.)")
 155 #define CONFIG_TEXT N_("Device properties")
 156 #define CONFIG_LONGTEXT N_( \
 157     "Show the properties dialog of the selected device before starting the " \
 158     "stream.")
 159 #define TUNER_TEXT N_("Tuner properties")
 160 #define TUNER_LONGTEXT N_( \
 161     "Show the tuner properties [channel selection] page." )
 162 #define CHANNEL_TEXT N_("Tuner TV Channel")
 163 #define CHANNEL_LONGTEXT N_( \
 164     "Set the TV channel the tuner will set to " \
 165     "(0 means default)." )
 166 #define TVFREQ_TEXT N_("Tuner Frequency")
 167 #define TVFREQ_LONGTEXT N_(  "This overrides the channel. Measured in Hz." )
 168 #define STANDARD_TEXT N_( "Video standard" )
 169 #define COUNTRY_TEXT N_("Tuner country code")
 170 #define COUNTRY_LONGTEXT N_( \
 171     "Set the tuner country code that establishes the current " \
 172     "channel-to-frequency mapping (0 means default)." )
 173 #define TUNER_INPUT_TEXT N_("Tuner input type")
 174 #define TUNER_INPUT_LONGTEXT N_( \
 175     "Select the tuner input type (Cable/Antenna)." )
 176 #define VIDEO_IN_TEXT N_("Video input pin")
 177 #define VIDEO_IN_LONGTEXT N_( \
 178   "Select the video input source, such as composite, s-video, " \
 179   "or tuner. Since these settings are hardware-specific, you should find good " \
 180   "settings in the \"Device config\" area, and use those numbers here. -1 " \
 181   "means that settings will not be changed.")
 182 #define AUDIO_IN_TEXT N_("Audio input pin")
 183 #define AUDIO_IN_LONGTEXT N_( \
 184   "Select the audio input source. See the \"video input\" option." )
 185 #define VIDEO_OUT_TEXT N_("Video output pin")
 186 #define VIDEO_OUT_LONGTEXT N_( \
 187   "Select the video output type. See the \"video input\" option." )
 188 #define AUDIO_OUT_TEXT N_("Audio output pin")
 189 #define AUDIO_OUT_LONGTEXT N_( \
 190   "Select the audio output type. See the \"video input\" option." )
 191
 192 #define AMTUNER_MODE_TEXT N_("AM Tuner mode")
 193 #define AMTUNER_MODE_LONGTEXT N_( \
 194     "AM Tuner mode. Can be one of Default (0), TV (1)," \
 195      "AM Radio (2), FM Radio (3) or DSS (4).")
 196
 197 #define AUDIO_CHANNELS_TEXT N_("Number of audio channels")
 198 #define AUDIO_CHANNELS_LONGTEXT N_( \
 199     "Select audio input format with the given number of audio channels (if non 0)" )
 200
 201 #define AUDIO_SAMPLERATE_TEXT N_("Audio sample rate")
 202 #define AUDIO_SAMPLERATE_LONGTEXT N_( \
 203     "Select audio input format with the given sample rate (if non 0)" )
 204
 205 #define AUDIO_BITSPERSAMPLE_TEXT N_("Audio bits per sample")
 206 #define AUDIO_BITSPERSAMPLE_LONGTEXT N_( \
 207     "Select audio input format with the given bits/sample (if non 0)" )
 208
 209 static int  CommonOpen ( vlc_object_t *, access_sys_t *, bool );
 210 static void CommonClose( vlc_object_t *, access_sys_t * );
 211
 212 static int  AccessOpen ( vlc_object_t * );
 213 static void AccessClose( vlc_object_t * );
 214
 215 static int  DemuxOpen  ( vlc_object_t * );
 216 static void DemuxClose ( vlc_object_t * );
 217
 218 vlc_module_begin ()
 219     set_shortname( N_("DirectShow") )
 220     set_description( N_("DirectShow input") )
 221     set_category( CAT_INPUT )
 222     set_subcategory( SUBCAT_INPUT_ACCESS )
 223
 224     add_string( CFG_PREFIX "vdev", NULL, VDEV_TEXT, VDEV_LONGTEXT, false)
 225         change_string_cb( FindDevices )
 226         change_action_add( ConfigDevicesCallback, N_("Configure") )
 227
 228     add_string( CFG_PREFIX "adev", NULL, ADEV_TEXT, ADEV_LONGTEXT, false)
 229         change_string_cb( FindDevices )
 230         change_action_add( ConfigDevicesCallback, N_("Configure") )
 231
 232     add_string( CFG_PREFIX "size", NULL, SIZE_TEXT, SIZE_LONGTEXT, false)
 233         change_safe()
 234
 235     add_string( CFG_PREFIX "aspect-ratio", "4:3", ASPECT_TEXT, ASPECT_LONGTEXT, false)
 236         change_safe()
 237
 238     add_string( CFG_PREFIX "chroma", NULL, CHROMA_TEXT, CHROMA_LONGTEXT, true )
 239         change_safe()
 240
 241     add_float( CFG_PREFIX "fps", 0.0f, FPS_TEXT, FPS_LONGTEXT, true )
 242         change_safe()
 243
 244     add_bool( CFG_PREFIX "config", false, CONFIG_TEXT, CONFIG_LONGTEXT, true )
 245
 246     add_bool( CFG_PREFIX "tuner", false, TUNER_TEXT, TUNER_LONGTEXT, true )
 247
 248     add_integer( CFG_PREFIX "tuner-channel", 0, CHANNEL_TEXT, CHANNEL_LONGTEXT,
 249                 true )
 250         change_safe()
 251
 252     add_integer( CFG_PREFIX "tuner-frequency", 0, TVFREQ_TEXT, TVFREQ_LONGTEXT,
 253                 true )
 254         change_safe()
 255
 256     add_integer( CFG_PREFIX "tuner-country", 0, COUNTRY_TEXT, COUNTRY_LONGTEXT,
 257                 true )
 258
 259     add_integer( CFG_PREFIX "tuner-standard", 0, STANDARD_TEXT, STANDARD_TEXT,
 260                 false )
 261         change_integer_list( i_standards_list, ppsz_standards_list_text )
 262         change_safe()
 263
 264     add_integer( CFG_PREFIX "tuner-input", 0, TUNER_INPUT_TEXT,
 265                  TUNER_INPUT_LONGTEXT, true )
 266         change_integer_list( pi_tuner_input, ppsz_tuner_input_text )
 267         change_safe()
 268
 269     add_integer( CFG_PREFIX "video-input",  -1, VIDEO_IN_TEXT,
 270                  VIDEO_IN_LONGTEXT, true )
 271         change_safe()
 272
 273     add_integer( CFG_PREFIX "video-output", -1, VIDEO_OUT_TEXT,
 274                  VIDEO_OUT_LONGTEXT, true )
 275
 276     add_integer( CFG_PREFIX "audio-input",  -1, AUDIO_IN_TEXT,
 277                  AUDIO_IN_LONGTEXT, true )
 278         change_safe()
 279
 280     add_integer( CFG_PREFIX "audio-output", -1, AUDIO_OUT_TEXT,
 281                  AUDIO_OUT_LONGTEXT, true )
 282
 283     add_integer( CFG_PREFIX "amtuner-mode", AMTUNER_MODE_TV,
 284                 AMTUNER_MODE_TEXT, AMTUNER_MODE_LONGTEXT, false)
 285         change_integer_list( pi_amtuner_mode, ppsz_amtuner_mode_text )
 286         change_safe()
 287
 288     add_integer( CFG_PREFIX "audio-channels", 0, AUDIO_CHANNELS_TEXT,
 289                  AUDIO_CHANNELS_LONGTEXT, true )
 290     add_integer( CFG_PREFIX "audio-samplerate", 0, AUDIO_SAMPLERATE_TEXT,
 291                  AUDIO_SAMPLERATE_LONGTEXT, true )
 292     add_integer( CFG_PREFIX "audio-bitspersample", 0, AUDIO_BITSPERSAMPLE_TEXT,
 293                  AUDIO_BITSPERSAMPLE_LONGTEXT, true )
 294
 295     add_shortcut( "dshow" )
 296     set_capability( "access_demux", 0 )
 297     set_callbacks( DemuxOpen, DemuxClose )
 298
 299     add_submodule ()
 300     set_description( N_("DirectShow input") )
 301     add_shortcut( "dshow" )
 302     set_capability( "access", 0 )
 303     set_callbacks( AccessOpen, AccessClose )
 304
 305 vlc_module_end ()
 306
 307
 308 /*****************************************************************************
 309  * DirectShow elementary stream descriptor
 310  *****************************************************************************/
 311 typedef struct dshow_stream_t
 312 {
 313     string          devicename;
 314     IBaseFilter     *p_device_filter;
 315     CaptureFilter   *p_capture_filter;
 316     AM_MEDIA_TYPE   mt;
 317
 318     union
 319     {
 320       VIDEOINFOHEADER video;
 321       WAVEFORMATEX    audio;
 322
 323     } header;
 324
 325     int             i_fourcc;
 326     es_out_id_t     *p_es;
 327
 328     bool      b_pts;
 329
 330     deque<VLCMediaSample> samples_queue;
 331 } dshow_stream_t;
 332
 333 /*****************************************************************************
 334  * DirectShow utility functions
 335  *****************************************************************************/
 336 static void CreateDirectShowGraph( access_sys_t *p_sys )
 337 {
 338     p_sys->i_crossbar_route_depth = 0;
 339
 340     /* Create directshow filter graph */
 341     if( SUCCEEDED( CoCreateInstance( CLSID_FilterGraph, 0, CLSCTX_INPROC,
 342                        (REFIID)IID_IFilterGraph, (void **)&p_sys->p_graph) ) )
 343     {
 344         /* Create directshow capture graph builder if available */
 345         if( SUCCEEDED( CoCreateInstance( CLSID_CaptureGraphBuilder2, 0,
 346                          CLSCTX_INPROC, (REFIID)IID_ICaptureGraphBuilder2,
 347                          (void **)&p_sys->p_capture_graph_builder2 ) ) )
 348         {
 349             p_sys->p_capture_graph_builder2->
 350                 SetFiltergraph((IGraphBuilder *)p_sys->p_graph);
 351         }
 352
 353         p_sys->p_graph->QueryInterface( IID_IMediaControl,
 354                                         (void **)&p_sys->p_control );
 355     }
 356 }
 357
 358 static void DeleteDirectShowGraph( vlc_object_t *p_this, access_sys_t *p_sys )
 359 {
 360     DeleteCrossbarRoutes( p_sys );
 361
 362     /* Remove filters from graph */
 363     msg_Dbg( p_this, "DeleteDirectShowGraph: Removing filters" );
 364     for( int i = 0; i < p_sys->i_streams; i++ )
 365     {
 366         /* RemoveFilter does an undocumented Release()
 367          * but does not set item to NULL */
 368         msg_Dbg( p_this, "DeleteDirectShowGraph: Removing capture filter" );
 369         p_sys->p_graph->RemoveFilter( p_sys->pp_streams[i]->p_capture_filter );
 370         p_sys->pp_streams[i]->p_capture_filter = NULL;
 371
 372         msg_Dbg( p_this, "DeleteDirectShowGraph: Removing device filter" );
 373         p_sys->p_graph->RemoveFilter( p_sys->pp_streams[i]->p_device_filter );
 374         p_sys->pp_streams[i]->p_device_filter = NULL;
 375     }
 376
 377     /* Release directshow objects */
 378     if( p_sys->p_control )
 379     {
 380         p_sys->p_control->Release();
 381         p_sys->p_control = NULL;
 382     }
 383     if( p_sys->p_capture_graph_builder2 )
 384     {
 385         p_sys->p_capture_graph_builder2->Release();
 386         p_sys->p_capture_graph_builder2 = NULL;
 387     }
 388
 389     if( p_sys->p_graph )
 390     {
 391         p_sys->p_graph->Release();
 392         p_sys->p_graph = NULL;
 393     }
 394 }
 395
 396 /*****************************************************************************
 397  * CommonOpen: open direct show device
 398  *****************************************************************************/
 399 static int CommonOpen( vlc_object_t *p_this, access_sys_t *p_sys,
 400                        bool b_access_demux )
 401 {
 402     char *psz_val;
 403
 404     /* Get/parse options and open device(s) */
 405     string vdevname, adevname;
 406     int i_width = 0, i_height = 0;
 407     vlc_fourcc_t i_chroma = 0;
 408     bool b_use_audio = true;
 409     bool b_use_video = true;
 410
 411     /* Initialize OLE/COM */
 412     CoInitializeEx( NULL, COINIT_APARTMENTTHREADED );
 413
 414     var_Create( p_this,  CFG_PREFIX "config", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 415     var_Create( p_this,  CFG_PREFIX "tuner", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 416     psz_val = var_CreateGetString( p_this, CFG_PREFIX "vdev" );
 417     if( psz_val )
 418     {
 419         msg_Dbg( p_this, "dshow-vdev: %s", psz_val ) ;
 420         /* skip none device */
 421         if ( strncasecmp( psz_val, "none", 4 ) != 0 )
 422             vdevname = string( psz_val );
 423         else
 424             b_use_video = false ;
 425     }
 426     free( psz_val );
 427
 428     psz_val = var_CreateGetString( p_this, CFG_PREFIX "adev" );
 429     if( psz_val )
 430     {
 431         msg_Dbg( p_this, "dshow-adev: %s", psz_val ) ;
 432         /* skip none device */
 433         if ( strncasecmp( psz_val, "none", 4 ) != 0 )
 434             adevname = string( psz_val );
 435         else
 436             b_use_audio = false ;
 437     }
 438     free( psz_val );
 439
 440     /* DShow Size */
 441     static struct {
 442         const char *psz_size;
 443         int  i_width;
 444         int  i_height;
 445     } size_table[] =
 446     { { "subqcif", 128, 96  },
 447       {    "qsif", 160, 120 },
 448       {    "qcif", 176, 144 },
 449       {     "sif", 320, 240 },
 450       {     "cif", 352, 288 },
 451       {      "d1", 640, 480 },
 452       { 0, 0, 0 },
 453     };
 454
 455     psz_val = var_CreateGetString( p_this, CFG_PREFIX "size" );
 456     if( !EMPTY_STR(psz_val) )
 457     {
 458         int i;
 459         for( i = 0; size_table[i].psz_size; i++ )
 460         {
 461             if( !strcmp( psz_val, size_table[i].psz_size ) )
 462             {
 463                 i_width = size_table[i].i_width;
 464                 i_height = size_table[i].i_height;
 465                 break;
 466             }
 467         }
 468         if( !size_table[i].psz_size ) /* Try to parse "WidthxHeight" */
 469         {
 470             char *psz_parser;
 471             i_width = strtol( psz_val, &psz_parser, 0 );
 472             if( *psz_parser == 'x' || *psz_parser == 'X')
 473             {
 474                 i_height = strtol( psz_parser + 1, &psz_parser, 0 );
 475             }
 476             msg_Dbg( p_this, "width x height %dx%d", i_width, i_height );
 477         }
 478     }
 479     free( psz_val );
 480
 481     /* Chroma */
 482     psz_val = var_CreateGetString( p_this, CFG_PREFIX "chroma" );
 483     i_chroma = vlc_fourcc_GetCodecFromString( UNKNOWN_ES, psz_val );
 484     p_sys->b_chroma = i_chroma != 0;
 485     free( psz_val );
 486
 487     var_Create( p_this, CFG_PREFIX "fps", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
 488     var_Create( p_this, CFG_PREFIX "tuner-channel",
 489                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 490     var_Create( p_this, CFG_PREFIX "tuner-frequency",
 491                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 492     var_Create( p_this, CFG_PREFIX "tuner-standard",
 493                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 494     var_Create( p_this, CFG_PREFIX "tuner-country",
 495                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 496     var_Create( p_this, CFG_PREFIX "tuner-input",
 497                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 498
 499     var_Create( p_this, CFG_PREFIX "amtuner-mode",
 500                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 501
 502     var_Create( p_this, CFG_PREFIX "video-input", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 503     var_Create( p_this, CFG_PREFIX "audio-input", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 504     var_Create( p_this, CFG_PREFIX "video-output", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 505     var_Create( p_this, CFG_PREFIX "audio-output", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 506
 507
 508     /* Initialize some data */
 509     p_sys->i_streams = 0;
 510     p_sys->pp_streams = NULL;
 511     p_sys->i_width = i_width;
 512     p_sys->i_height = i_height;
 513     p_sys->i_chroma = i_chroma;
 514
 515     p_sys->p_graph = NULL;
 516     p_sys->p_capture_graph_builder2 = NULL;
 517     p_sys->p_control = NULL;
 518
 519     /* Build directshow graph */
 520     CreateDirectShowGraph( p_sys );
 521
 522     vlc_mutex_init( &p_sys->lock );
 523     vlc_cond_init( &p_sys->wait );
 524
 525     if( !b_use_video && !b_use_audio )
 526     {
 527         dialog_Fatal( p_this, _("Capture failed"),
 528                         _("No video or audio device selected.") );
 529         return VLC_EGENERIC ;
 530     }
 531
 532     if( !b_use_video )
 533         msg_Dbg( p_this, "skipping video device" ) ;
 534     bool b_err_video = false ;
 535
 536     if( b_use_video && OpenDevice( p_this, p_sys, vdevname, 0 ) != VLC_SUCCESS )
 537     {
 538         msg_Err( p_this, "can't open video device");
 539         b_err_video = true ;
 540     }
 541
 542     if ( b_use_video && !b_err_video )
 543     {
 544         /* Check if we can handle the demuxing ourselves or need to spawn
 545          * a demuxer module */
 546         dshow_stream_t *p_stream = p_sys->pp_streams[p_sys->i_streams-1];
 547
 548         if( p_stream->mt.majortype == MEDIATYPE_Video )
 549         {
 550             if( /* Raw DV stream */
 551                 p_stream->i_fourcc == VLC_CODEC_DV ||
 552                 /* Raw MPEG video stream */
 553                 p_stream->i_fourcc == VLC_CODEC_MPGV )
 554             {
 555                 b_use_audio = false;
 556
 557                 if( b_access_demux )
 558                 {
 559                     /* Let the access (only) take care of that */
 560                     return VLC_EGENERIC;
 561                 }
 562             }
 563         }
 564
 565         if( p_stream->mt.majortype == MEDIATYPE_Stream )
 566         {
 567             b_use_audio = false;
 568
 569             if( b_access_demux )
 570             {
 571                 /* Let the access (only) take care of that */
 572                 return VLC_EGENERIC;
 573             }
 574
 575             if( var_GetBool( p_this, CFG_PREFIX "tuner" ) )
 576             {
 577                 /* FIXME: we do MEDIATYPE_Stream here so we don't do
 578                  * it twice. */
 579                 ShowTunerProperties( p_this, p_sys->p_capture_graph_builder2,
 580                                      p_stream->p_device_filter, 0 );
 581             }
 582         }
 583     }
 584
 585     if( !b_use_audio )
 586         msg_Dbg( p_this, "skipping audio device") ;
 587
 588     bool b_err_audio = false ;
 589
 590     if( b_use_audio && OpenDevice( p_this, p_sys, adevname, 1 ) != VLC_SUCCESS )
 591     {
 592         msg_Err( p_this, "can't open audio device");
 593         b_err_audio = true ;
 594     }
 595
 596     if( ( b_use_video && b_err_video && b_use_audio && b_err_audio ) ||
 597         ( !b_use_video && b_use_audio && b_err_audio ) ||
 598         ( b_use_video && !b_use_audio && b_err_video ) )
 599     {
 600         msg_Err( p_this, "FATAL: could not open ANY device" ) ;
 601         dialog_Fatal( p_this,  _("Capture failed"),
 602                         _("VLC cannot open ANY capture device. "
 603                           "Check the error log for details.") );
 604         return VLC_EGENERIC ;
 605     }
 606
 607     for( int i = p_sys->i_crossbar_route_depth-1; i >= 0 ; --i )
 608     {
 609         int i_val = var_GetInteger( p_this, CFG_PREFIX "video-input" );
 610         if( i_val >= 0 )
 611             p_sys->crossbar_routes[i].VideoInputIndex = i_val;
 612         i_val = var_GetInteger( p_this, CFG_PREFIX "video-output" );
 613         if( i_val >= 0 )
 614             p_sys->crossbar_routes[i].VideoOutputIndex = i_val;
 615         i_val = var_GetInteger( p_this, CFG_PREFIX "audio-input" );
 616         if( i_val >= 0 )
 617             p_sys->crossbar_routes[i].AudioInputIndex = i_val;
 618         i_val = var_GetInteger( p_this, CFG_PREFIX "audio-output" );
 619         if( i_val >= 0 )
 620             p_sys->crossbar_routes[i].AudioOutputIndex = i_val;
 621
 622         IAMCrossbar *pXbar = p_sys->crossbar_routes[i].pXbar;
 623         LONG VideoInputIndex = p_sys->crossbar_routes[i].VideoInputIndex;
 624         LONG VideoOutputIndex = p_sys->crossbar_routes[i].VideoOutputIndex;
 625         LONG AudioInputIndex = p_sys->crossbar_routes[i].AudioInputIndex;
 626         LONG AudioOutputIndex = p_sys->crossbar_routes[i].AudioOutputIndex;
 627
 628         if( SUCCEEDED(pXbar->Route(VideoOutputIndex, VideoInputIndex)) )
 629         {
 630             msg_Dbg( p_this, "crossbar at depth %d, routed video "
 631                      "output %ld to video input %ld", i, VideoOutputIndex,
 632                      VideoInputIndex );
 633
 634             if( AudioOutputIndex != -1 && AudioInputIndex != -1 )
 635             {
 636                 if( SUCCEEDED( pXbar->Route(AudioOutputIndex,
 637                                             AudioInputIndex)) )
 638                 {
 639                     msg_Dbg(p_this, "crossbar at depth %d, routed audio "
 640                             "output %ld to audio input %ld", i,
 641                             AudioOutputIndex, AudioInputIndex );
 642                 }
 643             }
 644         }
 645         else
 646             msg_Err( p_this, "crossbar at depth %d could not route video "
 647                      "output %ld to input %ld", i, VideoOutputIndex, VideoInputIndex );
 648     }
 649
 650     /*
 651     ** Show properties pages from other filters in graph
 652     */
 653     if( var_GetBool( p_this, CFG_PREFIX "config" ) )
 654     {
 655         for( int i = p_sys->i_crossbar_route_depth-1; i >= 0 ; --i )
 656         {
 657             IAMCrossbar *pXbar = p_sys->crossbar_routes[i].pXbar;
 658             IBaseFilter *p_XF;
 659
 660             if( SUCCEEDED( pXbar->QueryInterface( IID_IBaseFilter,
 661                                                   (void **)&p_XF ) ) )
 662             {
 663                 ShowPropertyPage( p_XF );
 664                 p_XF->Release();
 665             }
 666         }
 667     }
 668
 669     /* Initialize some data */
 670     p_sys->i_current_stream = 0;
 671
 672     if( !p_sys->i_streams ) return VLC_EGENERIC;
 673
 674     return VLC_SUCCESS;
 675 }
 676
 677 /*****************************************************************************
 678  * DemuxOpen: open direct show device as an access_demux module
 679  *****************************************************************************/
 680 static int DemuxOpen( vlc_object_t *p_this )
 681 {
 682     demux_t      *p_demux = (demux_t *)p_this;
 683     access_sys_t *p_sys;
 684
 685     p_sys = (access_sys_t*)calloc( 1, sizeof( access_sys_t ) );
 686     if( !p_sys )
 687         return VLC_ENOMEM;
 688     p_demux->p_sys = (demux_sys_t *)p_sys;
 689
 690     if( CommonOpen( p_this, p_sys, true ) != VLC_SUCCESS )
 691     {
 692         CommonClose( p_this, p_sys );
 693         return VLC_EGENERIC;
 694     }
 695
 696     /* Everything is ready. Let's rock baby */
 697     msg_Dbg( p_this, "Playing...");
 698     p_sys->p_control->Run();
 699
 700     p_demux->pf_demux   = Demux;
 701     p_demux->pf_control = DemuxControl;
 702     p_demux->info.i_update = 0;
 703     p_demux->info.i_title = 0;
 704     p_demux->info.i_seekpoint = 0;
 705
 706     for( int i = 0; i < p_sys->i_streams; i++ )
 707     {
 708         dshow_stream_t *p_stream = p_sys->pp_streams[i];
 709         es_format_t fmt;
 710
 711         if( p_stream->mt.majortype == MEDIATYPE_Video )
 712         {
 713             char *psz_aspect = var_CreateGetString( p_this, CFG_PREFIX "aspect-ratio" );
 714             char *psz_delim = !EMPTY_STR( psz_aspect ) ? strchr( psz_aspect, ':' ) : NULL;
 715
 716             es_format_Init( &fmt, VIDEO_ES, p_stream->i_fourcc );
 717
 718             fmt.video.i_width  = p_stream->header.video.bmiHeader.biWidth;
 719             fmt.video.i_height = p_stream->header.video.bmiHeader.biHeight;
 720
 721             if( psz_delim )
 722             {
 723                 fmt.video.i_sar_num = atoi( psz_aspect ) * fmt.video.i_height;
 724                 fmt.video.i_sar_den = atoi( psz_delim + 1 ) * fmt.video.i_width;
 725             }
 726             else
 727             {
 728                 fmt.video.i_sar_num = 4 * fmt.video.i_height;
 729                 fmt.video.i_sar_den = 3 * fmt.video.i_width;
 730             }
 731             free( psz_aspect );
 732
 733             if( !p_stream->header.video.bmiHeader.biCompression )
 734             {
 735                 /* RGB DIB are coded from bottom to top */
 736                 fmt.video.i_height = (unsigned int)(-(int)fmt.video.i_height);
 737             }
 738
 739             /* Setup rgb mask for RGB formats */
 740             if( p_stream->i_fourcc == VLC_CODEC_RGB24 )
 741             {
 742                 /* This is in RGB format
 743             http://msdn.microsoft.com/en-us/library/dd407253%28VS.85%29.aspx?ppud=4
 744                  */
 745                 fmt.video.i_rmask = 0x00ff0000;
 746                 fmt.video.i_gmask = 0x0000ff00;
 747                 fmt.video.i_bmask = 0x000000ff;
 748             }
 749
 750             if( p_stream->header.video.AvgTimePerFrame )
 751             {
 752                 fmt.video.i_frame_rate = 10000000;
 753                 fmt.video.i_frame_rate_base =
 754                     p_stream->header.video.AvgTimePerFrame;
 755             }
 756         }
 757         else if( p_stream->mt.majortype == MEDIATYPE_Audio )
 758         {
 759             es_format_Init( &fmt, AUDIO_ES, p_stream->i_fourcc );
 760
 761             fmt.audio.i_channels = p_stream->header.audio.nChannels;
 762             fmt.audio.i_rate = p_stream->header.audio.nSamplesPerSec;
 763             fmt.audio.i_bitspersample = p_stream->header.audio.wBitsPerSample;
 764             fmt.audio.i_blockalign = fmt.audio.i_channels *
 765                 fmt.audio.i_bitspersample / 8;
 766             fmt.i_bitrate = fmt.audio.i_channels * fmt.audio.i_rate *
 767                 fmt.audio.i_bitspersample;
 768         }
 769
 770         p_stream->p_es = es_out_Add( p_demux->out, &fmt );
 771     }
 772
 773     return VLC_SUCCESS;
 774 }
 775
 776 /*****************************************************************************
 777  * AccessOpen: open direct show device as an access module
 778  *****************************************************************************/
 779 static int AccessOpen( vlc_object_t *p_this )
 780 {
 781     access_t     *p_access = (access_t*)p_this;
 782     access_sys_t *p_sys;
 783
 784     p_access->p_sys = p_sys = (access_sys_t*)calloc( 1, sizeof( access_sys_t ) );
 785     if( !p_sys )
 786         return VLC_ENOMEM;
 787
 788     if( CommonOpen( p_this, p_sys, false ) != VLC_SUCCESS )
 789     {
 790         CommonClose( p_this, p_sys );
 791         return VLC_EGENERIC;
 792     }
 793
 794     dshow_stream_t *p_stream = p_sys->pp_streams[0];
 795
 796     /* Check if we need to force demuxers */
 797     if( !p_access->psz_demux || !*p_access->psz_demux )
 798     {
 799         if( p_stream->i_fourcc == VLC_CODEC_DV )
 800         {
 801             free( p_access->psz_demux );
 802             p_access->psz_demux = strdup( "rawdv" );
 803         }
 804         else if( p_stream->i_fourcc == VLC_CODEC_MPGV )
 805         {
 806             free( p_access->psz_demux );
 807             p_access->psz_demux = strdup( "mpgv" );
 808         }
 809     }
 810
 811     /* Setup Access */
 812     p_access->pf_read = NULL;
 813     p_access->pf_block = ReadCompressed;
 814     p_access->pf_control = AccessControl;
 815     p_access->pf_seek = NULL;
 816     p_access->info.i_update = 0;
 817     p_access->info.i_size = 0;
 818     p_access->info.i_pos = 0;
 819     p_access->info.b_eof = false;
 820     p_access->info.i_title = 0;
 821     p_access->info.i_seekpoint = 0;
 822     p_access->p_sys = p_sys;
 823
 824     /* Everything is ready. Let's rock baby */
 825     msg_Dbg( p_this, "Playing...");
 826     p_sys->p_control->Run();
 827
 828     return VLC_SUCCESS;
 829 }
 830
 831 /*****************************************************************************
 832  * CommonClose: close device
 833  *****************************************************************************/
 834 static void CommonClose( vlc_object_t *p_this, access_sys_t *p_sys )
 835 {
 836     msg_Dbg( p_this, "releasing DirectShow");
 837
 838     DeleteDirectShowGraph( p_this, p_sys );
 839
 840     /* Uninitialize OLE/COM */
 841     CoUninitialize();
 842
 843     for( int i = 0; i < p_sys->i_streams; i++ ) delete p_sys->pp_streams[i];
 844     if( p_sys->i_streams ) free( p_sys->pp_streams );
 845
 846     vlc_mutex_destroy( &p_sys->lock );
 847     vlc_cond_destroy( &p_sys->wait );
 848
 849     free( p_sys );
 850 }
 851
 852 /*****************************************************************************
 853  * AccessClose: close device
 854  *****************************************************************************/
 855 static void AccessClose( vlc_object_t *p_this )
 856 {
 857     access_t     *p_access = (access_t *)p_this;
 858     access_sys_t *p_sys    = p_access->p_sys;
 859
 860     /* Stop capturing stuff */
 861     p_sys->p_control->Stop();
 862
 863     CommonClose( p_this, p_sys );
 864 }
 865
 866 /*****************************************************************************
 867  * DemuxClose: close device
 868  *****************************************************************************/
 869 static void DemuxClose( vlc_object_t *p_this )
 870 {
 871     demux_t      *p_demux = (demux_t *)p_this;
 872     access_sys_t *p_sys   = (access_sys_t *)p_demux->p_sys;
 873
 874     /* Stop capturing stuff */
 875     p_sys->p_control->Stop();
 876
 877     CommonClose( p_this, p_sys );
 878 }
 879
 880 /****************************************************************************
 881  * ConnectFilters
 882  ****************************************************************************/
 883 static bool ConnectFilters( vlc_object_t *p_this, access_sys_t *p_sys,
 884                             IBaseFilter *p_filter,
 885                             CaptureFilter *p_capture_filter )
 886 {
 887     CapturePin *p_input_pin = p_capture_filter->CustomGetPin();
 888
 889     AM_MEDIA_TYPE mediaType = p_input_pin->CustomGetMediaType();
 890
 891     if( p_sys->p_capture_graph_builder2 )
 892     {
 893         if( FAILED(p_sys->p_capture_graph_builder2->
 894                 RenderStream( &PIN_CATEGORY_CAPTURE, &mediaType.majortype,
 895                               p_filter, 0, (IBaseFilter *)p_capture_filter )) )
 896         {
 897             return false;
 898         }
 899
 900         // Sort out all the possible video inputs
 901         // The class needs to be given the capture filters ANALOGVIDEO input pin
 902         IEnumPins *pins = NULL;
 903         if( ( mediaType.majortype == MEDIATYPE_Video ||
 904               mediaType.majortype == MEDIATYPE_Stream ) &&
 905             SUCCEEDED(p_filter->EnumPins(&pins)) )
 906         {
 907             IPin        *pP = NULL;
 908             ULONG        n;
 909             PIN_INFO     pinInfo;
 910             BOOL         Found = FALSE;
 911             IKsPropertySet *pKs = NULL;
 912             GUID guid;
 913             DWORD dw;
 914
 915             while( !Found && ( S_OK == pins->Next(1, &pP, &n) ) )
 916             {
 917                 if( S_OK == pP->QueryPinInfo(&pinInfo) )
 918                 {
 919                     // is this pin an ANALOGVIDEOIN input pin?
 920                     if( pinInfo.dir == PINDIR_INPUT &&
 921                         pP->QueryInterface( IID_IKsPropertySet,
 922                                             (void **)&pKs ) == S_OK )
 923                     {
 924                         if( pKs->Get( AMPROPSETID_Pin,
 925                                       AMPROPERTY_PIN_CATEGORY, NULL, 0,
 926                                       &guid, sizeof(GUID), &dw ) == S_OK )
 927                         {
 928                             if( guid == PIN_CATEGORY_ANALOGVIDEOIN )
 929                             {
 930                                 // recursively search crossbar routes
 931                                 FindCrossbarRoutes( p_this, p_sys, pP, 0 );
 932                                 // found it
 933                                 Found = TRUE;
 934                             }
 935                         }
 936                         pKs->Release();
 937                     }
 938                     pinInfo.pFilter->Release();
 939                 }
 940                 pP->Release();
 941             }
 942             pins->Release();
 943             msg_Dbg( p_this, "ConnectFilters: graph_builder2 available.") ;
 944             if ( !Found )
 945                 msg_Warn( p_this, "ConnectFilters: No crossBar routes found (incompatible pin types)" ) ;
 946         }
 947         return true;
 948     }
 949     else
 950     {
 951         IEnumPins *p_enumpins;
 952         IPin *p_pin;
 953
 954         if( S_OK != p_filter->EnumPins( &p_enumpins ) ) return false;
 955
 956         while( S_OK == p_enumpins->Next( 1, &p_pin, NULL ) )
 957         {
 958             PIN_DIRECTION pin_dir;
 959             p_pin->QueryDirection( &pin_dir );
 960
 961             if( pin_dir == PINDIR_OUTPUT &&
 962                 p_sys->p_graph->ConnectDirect( p_pin, (IPin *)p_input_pin,
 963                                                0 ) == S_OK )
 964             {
 965                 p_pin->Release();
 966                 p_enumpins->Release();
 967                 return true;
 968             }
 969             p_pin->Release();
 970         }
 971
 972         p_enumpins->Release();
 973         return false;
 974     }
 975 }
 976
 977 /*
 978  * get fourcc priority from arbritary preference, the higher the better
 979  */
 980 static int GetFourCCPriority( int i_fourcc )
 981 {
 982     switch( i_fourcc )
 983     {
 984     case VLC_CODEC_I420:
 985     case VLC_CODEC_FL32:
 986         return 9;
 987     case VLC_CODEC_YV12:
 988     case VLC_FOURCC('a','r','a','w'):
 989         return 8;
 990     case VLC_CODEC_RGB24:
 991         return 7;
 992     case VLC_CODEC_YUYV:
 993     case VLC_CODEC_RGB32:
 994     case VLC_CODEC_RGBA:
 995         return 6;
 996     }
 997
 998     return 0;
 999 }
1000
1001 #define MAX_MEDIA_TYPES 32
1002
1003 static int OpenDevice( vlc_object_t *p_this, access_sys_t *p_sys,
1004                        string devicename, bool b_audio )
1005 {
1006     /* See if device is already opened */
1007     for( int i = 0; i < p_sys->i_streams; i++ )
1008     {
1009         if( devicename.size() &&
1010             p_sys->pp_streams[i]->devicename == devicename )
1011         {
1012             /* Already opened */
1013             return VLC_SUCCESS;
1014         }
1015     }
1016
1017     list<string> list_devices;
1018
1019     /* Enumerate devices and display their names */
1020     FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
1021     if( list_devices.empty() )
1022         return VLC_EGENERIC;
1023
1024     list<string>::iterator iter;
1025     for( iter = list_devices.begin(); iter != list_devices.end(); ++iter )
1026         msg_Dbg( p_this, "found device: %s", iter->c_str() );
1027
1028     /* If no device name was specified, pick the 1st one */
1029     if( devicename.size() == 0 )
1030     {
1031         /* When none selected */
1032         devicename = *list_devices.begin();
1033         msg_Dbg( p_this, "asking for default device: %s", devicename.c_str() ) ;
1034     }
1035     else
1036         msg_Dbg( p_this, "asking for device: %s", devicename.c_str() ) ;
1037     // Use the system device enumerator and class enumerator to find
1038     // a capture/preview device, such as a desktop USB video camera.
1039     IBaseFilter *p_device_filter =
1040         FindCaptureDevice( p_this, &devicename, NULL, b_audio );
1041
1042     if( p_device_filter )
1043         msg_Dbg( p_this, "using device: %s", devicename.c_str() );
1044     else
1045     {
1046         msg_Err( p_this, "can't use device: %s, unsupported device type",
1047                  devicename.c_str() );
1048         dialog_Fatal( p_this, _("Capture failed"),
1049                         _("VLC cannot use the device \"%s\", because its "
1050                           "type is not supported."), devicename.c_str() );
1051         return VLC_EGENERIC;
1052     }
1053
1054     // Retreive acceptable media types supported by device
1055     AM_MEDIA_TYPE media_types[MAX_MEDIA_TYPES];
1056     size_t media_count =
1057         EnumDeviceCaps( p_this, p_device_filter, b_audio ? 0 : p_sys->i_chroma,
1058                         p_sys->i_width, p_sys->i_height,
1059       b_audio ? var_CreateGetInteger( p_this, CFG_PREFIX "audio-channels" ) : 0,
1060       b_audio ? var_CreateGetInteger( p_this, CFG_PREFIX "audio-samplerate" ) : 0,
1061       b_audio ? var_CreateGetInteger( p_this, CFG_PREFIX "audio-bitspersample" ) : 0,
1062       media_types, MAX_MEDIA_TYPES );
1063
1064     AM_MEDIA_TYPE *mt = NULL;
1065
1066     if( media_count > 0 )
1067     {
1068         mt = (AM_MEDIA_TYPE *)CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE) * media_count);
1069
1070         // Order and copy returned media types according to arbitrary
1071         // fourcc priority
1072         for( size_t c = 0; c < media_count; c++ )
1073         {
1074             int slot_priority =
1075                 GetFourCCPriority(GetFourCCFromMediaType(media_types[c]));
1076             size_t slot_copy = c;
1077             for( size_t d = c+1; d < media_count; d++ )
1078             {
1079                 int priority =
1080                     GetFourCCPriority(GetFourCCFromMediaType(media_types[d]));
1081                 if( priority > slot_priority )
1082                 {
1083                     slot_priority = priority;
1084                     slot_copy = d;
1085                 }
1086             }
1087             if( slot_copy != c )
1088             {
1089                 mt[c] = media_types[slot_copy];
1090                 media_types[slot_copy] = media_types[c];
1091             }
1092             else
1093             {
1094                 mt[c] = media_types[c];
1095             }
1096         }
1097     }
1098     else {
1099         /* capture device */
1100         msg_Err( p_this, "capture device '%s' does not support required parameters !", devicename.c_str() );
1101         dialog_Fatal( p_this, _("Capture failed"),
1102                         _("The capture device \"%s\" does not support the "
1103                           "required parameters."), devicename.c_str() );
1104         p_device_filter->Release();
1105         return VLC_EGENERIC;
1106     }
1107
1108     /* Create and add our capture filter */
1109     CaptureFilter *p_capture_filter =
1110         new CaptureFilter( p_this, p_sys, mt, media_count );
1111     p_sys->p_graph->AddFilter( p_capture_filter, 0 );
1112
1113     /* Add the device filter to the graph (seems necessary with VfW before
1114      * accessing pin attributes). */
1115     p_sys->p_graph->AddFilter( p_device_filter, 0 );
1116
1117     /* Attempt to connect one of this device's capture output pins */
1118     msg_Dbg( p_this, "connecting filters" );
1119     if( ConnectFilters( p_this, p_sys, p_device_filter, p_capture_filter ) )
1120     {
1121         /* Success */
1122         msg_Dbg( p_this, "filters connected successfully !" );
1123
1124         dshow_stream_t dshow_stream;
1125         dshow_stream.b_pts = false;
1126         dshow_stream.p_es = 0;
1127         dshow_stream.mt =
1128             p_capture_filter->CustomGetPin()->CustomGetMediaType();
1129
1130         /* Show Device properties. Done here so the VLC stream is setup with
1131          * the proper parameters. */
1132         if( var_GetBool( p_this, CFG_PREFIX "config" ) )
1133         {
1134             ShowDeviceProperties( p_this, p_sys->p_capture_graph_builder2,
1135                                   p_device_filter, b_audio );
1136         }
1137
1138         ConfigTuner( p_this, p_sys->p_capture_graph_builder2,
1139                      p_device_filter );
1140
1141         if( var_GetBool( p_this, CFG_PREFIX "tuner" ) &&
1142             dshow_stream.mt.majortype != MEDIATYPE_Stream )
1143         {
1144             /* FIXME: we do MEDIATYPE_Stream later so we don't do it twice. */
1145             ShowTunerProperties( p_this, p_sys->p_capture_graph_builder2,
1146                                  p_device_filter, b_audio );
1147         }
1148
1149         dshow_stream.mt =
1150             p_capture_filter->CustomGetPin()->CustomGetMediaType();
1151
1152         dshow_stream.i_fourcc = GetFourCCFromMediaType( dshow_stream.mt );
1153         if( dshow_stream.i_fourcc )
1154         {
1155             if( dshow_stream.mt.majortype == MEDIATYPE_Video )
1156             {
1157                 dshow_stream.header.video =
1158                     *(VIDEOINFOHEADER *)dshow_stream.mt.pbFormat;
1159                 msg_Dbg( p_this, "MEDIATYPE_Video" );
1160                 msg_Dbg( p_this, "selected video pin accepts format: %4.4s",
1161                          (char *)&dshow_stream.i_fourcc);
1162             }
1163             else if( dshow_stream.mt.majortype == MEDIATYPE_Audio )
1164             {
1165                 dshow_stream.header.audio =
1166                     *(WAVEFORMATEX *)dshow_stream.mt.pbFormat;
1167                 msg_Dbg( p_this, "MEDIATYPE_Audio" );
1168                 msg_Dbg( p_this, "selected audio pin accepts format: %4.4s",
1169                          (char *)&dshow_stream.i_fourcc);
1170             }
1171             else if( dshow_stream.mt.majortype == MEDIATYPE_Stream )
1172             {
1173                 msg_Dbg( p_this, "MEDIATYPE_Stream" );
1174                 msg_Dbg( p_this, "selected stream pin accepts format: %4.4s",
1175                          (char *)&dshow_stream.i_fourcc);
1176             }
1177             else
1178             {
1179                 msg_Dbg( p_this, "unknown stream majortype" );
1180                 goto fail;
1181             }
1182
1183             /* Add directshow elementary stream to our list */
1184             dshow_stream.p_device_filter = p_device_filter;
1185             dshow_stream.p_capture_filter = p_capture_filter;
1186
1187             p_sys->pp_streams = (dshow_stream_t **)xrealloc( p_sys->pp_streams,
1188                           sizeof(dshow_stream_t *) * (p_sys->i_streams + 1) );
1189             p_sys->pp_streams[p_sys->i_streams] = new dshow_stream_t;
1190             *p_sys->pp_streams[p_sys->i_streams++] = dshow_stream;
1191
1192             return VLC_SUCCESS;
1193         }
1194     }
1195
1196  fail:
1197     /* Remove filters from graph */
1198     msg_Dbg( p_this, "OpenDevice: Removing filters" ) ;
1199     p_sys->p_graph->RemoveFilter( p_device_filter );
1200     p_sys->p_graph->RemoveFilter( p_capture_filter );
1201
1202     /* Release objects */
1203     /* RemoveFilter does an undocumented Release()
1204      * but does not set item to NULL*/
1205
1206     p_device_filter = NULL;
1207     p_capture_filter = NULL;
1208
1209     return VLC_EGENERIC;
1210 }
1211
1212 /* FindCaptureDevices:: This Function had two purposes :
1213     Returns the list of capture devices when p_listdevices != NULL
1214     Creates an IBaseFilter when p_devicename corresponds to an existing devname
1215    These actions *may* be requested whith a single call.
1216 */
1217 static IBaseFilter *
1218 FindCaptureDevice( vlc_object_t *p_this, string *p_devicename,
1219                    list<string> *p_listdevices, bool b_audio )
1220 {
1221     IBaseFilter *p_base_filter = NULL;
1222     IMoniker *p_moniker = NULL;
1223     ULONG i_fetched;
1224     HRESULT hr;
1225     list<string> devicelist;
1226
1227     /* Create the system device enumerator */
1228     ICreateDevEnum *p_dev_enum = NULL;
1229
1230     hr = CoCreateInstance( CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC,
1231                            IID_ICreateDevEnum, (void **)&p_dev_enum );
1232     if( FAILED(hr) )
1233     {
1234         msg_Err( p_this, "failed to create the device enumerator (0x%lx)", hr);
1235         return NULL;
1236     }
1237
1238     /* Create an enumerator for the video capture devices */
1239     IEnumMoniker *p_class_enum = NULL;
1240     if( !b_audio )
1241         hr = p_dev_enum->CreateClassEnumerator( CLSID_VideoInputDeviceCategory,
1242                                                 &p_class_enum, 0 );
1243     else
1244         hr = p_dev_enum->CreateClassEnumerator( CLSID_AudioInputDeviceCategory,
1245                                                 &p_class_enum, 0 );
1246     p_dev_enum->Release();
1247     if( FAILED(hr) )
1248     {
1249         msg_Err( p_this, "failed to create the class enumerator (0x%lx)", hr );
1250         return NULL;
1251     }
1252
1253     /* If there are no enumerators for the requested type, then
1254      * CreateClassEnumerator will succeed, but p_class_enum will be NULL */
1255     if( p_class_enum == NULL )
1256     {
1257         msg_Err( p_this, "no %s capture device was detected", ( b_audio ? "audio" : "video" ) );
1258         return NULL;
1259     }
1260
1261     /* Enumerate the devices */
1262
1263     /* Note that if the Next() call succeeds but there are no monikers,
1264      * it will return S_FALSE (which is not a failure). Therefore, we check
1265      * that the return code is S_OK instead of using SUCCEEDED() macro. */
1266
1267     while( p_class_enum->Next( 1, &p_moniker, &i_fetched ) == S_OK )
1268     {
1269         /* Getting the property page to get the device name */
1270         IPropertyBag *p_bag;
1271         hr = p_moniker->BindToStorage( 0, 0, IID_IPropertyBag,
1272                                        (void **)&p_bag );
1273         if( SUCCEEDED(hr) )
1274         {
1275             VARIANT var;
1276             var.vt = VT_BSTR;
1277             hr = p_bag->Read( L"FriendlyName", &var, NULL );
1278             p_bag->Release();
1279             if( SUCCEEDED(hr) )
1280             {
1281                 char *p_buf = FromWide( var.bstrVal );
1282                 string devname = string(p_buf);
1283                 free( p_buf) ;
1284
1285                 int dup = 0;
1286                 /* find out if this name is already used by a previously found device */
1287                 list<string>::const_iterator iter = devicelist.begin();
1288                 list<string>::const_iterator end = devicelist.end();
1289                 string ordevname = devname ;
1290                 while ( iter != end )
1291                 {
1292                     if( 0 == (*iter).compare( devname ) )
1293                     { /* devname is on the list. Try another name with sequence
1294                          number apended and then rescan until a unique entry is found*/
1295                          char seq[16];
1296                          snprintf(seq, 16, " #%d", ++dup);
1297                          devname = ordevname + seq;
1298                          iter = devicelist.begin();
1299                     }
1300                     else
1301                          ++iter;
1302                 }
1303                 devicelist.push_back( devname );
1304
1305                 if( p_devicename && *p_devicename == devname )
1306                 {
1307                     msg_Dbg( p_this, "asked for %s, binding to %s", p_devicename->c_str() , devname.c_str() ) ;
1308                     /* NULL possibly means we don't need BindMoniker BindCtx ?? */
1309                     hr = p_moniker->BindToObject( NULL, 0, IID_IBaseFilter,
1310                                                   (void **)&p_base_filter );
1311                     if( FAILED(hr) )
1312                     {
1313                         msg_Err( p_this, "couldn't bind moniker to filter "
1314                                  "object (0x%lx)", hr );
1315                         p_moniker->Release();
1316                         p_class_enum->Release();
1317                         return NULL;
1318                     }
1319                     p_moniker->Release();
1320                     p_class_enum->Release();
1321                     return p_base_filter;
1322                 }
1323             }
1324         }
1325
1326         p_moniker->Release();
1327     }
1328
1329     p_class_enum->Release();
1330
1331     if( p_listdevices ) {
1332         devicelist.sort();
1333         *p_listdevices = devicelist;
1334     }
1335     return NULL;
1336 }
1337
1338 static size_t EnumDeviceCaps( vlc_object_t *p_this, IBaseFilter *p_filter,
1339                               int i_fourcc, int i_width, int i_height,
1340                               int i_channels, int i_samplespersec,
1341                               int i_bitspersample, AM_MEDIA_TYPE *mt,
1342                               size_t mt_max )
1343 {
1344     IEnumPins *p_enumpins;
1345     IPin *p_output_pin;
1346     IEnumMediaTypes *p_enummt;
1347     size_t mt_count = 0;
1348
1349     LONGLONG i_AvgTimePerFrame = 0;
1350     float r_fps = var_GetFloat( p_this, CFG_PREFIX "fps" );
1351     if( r_fps )
1352         i_AvgTimePerFrame = 10000000000LL/(LONGLONG)(r_fps*1000.0f);
1353
1354     if( FAILED(p_filter->EnumPins( &p_enumpins )) )
1355     {
1356         msg_Dbg( p_this, "EnumDeviceCaps failed: no pin enumeration !");
1357         return 0;
1358     }
1359
1360     while( S_OK == p_enumpins->Next( 1, &p_output_pin, NULL ) )
1361     {
1362         PIN_INFO info;
1363
1364         if( S_OK == p_output_pin->QueryPinInfo( &info ) )
1365         {
1366             msg_Dbg( p_this, "EnumDeviceCaps: %s pin: %S",
1367                      info.dir == PINDIR_INPUT ? "input" : "output",
1368                      info.achName );
1369             if( info.pFilter ) info.pFilter->Release();
1370         }
1371
1372         p_output_pin->Release();
1373     }
1374
1375     p_enumpins->Reset();
1376
1377     while( !mt_count && p_enumpins->Next( 1, &p_output_pin, NULL ) == S_OK )
1378     {
1379         PIN_INFO info;
1380
1381         if( S_OK == p_output_pin->QueryPinInfo( &info ) )
1382         {
1383             if( info.pFilter ) info.pFilter->Release();
1384             if( info.dir == PINDIR_INPUT )
1385             {
1386                 p_output_pin->Release();
1387                 continue;
1388             }
1389             msg_Dbg( p_this, "EnumDeviceCaps: trying pin %S", info.achName );
1390         }
1391
1392         AM_MEDIA_TYPE *p_mt;
1393
1394         /*
1395         ** Configure pin with a default compatible media if possible
1396         */
1397
1398         IAMStreamConfig *pSC;
1399         if( SUCCEEDED(p_output_pin->QueryInterface( IID_IAMStreamConfig,
1400                                             (void **)&pSC )) )
1401         {
1402             int piCount, piSize;
1403             if( SUCCEEDED(pSC->GetNumberOfCapabilities(&piCount, &piSize)) )
1404             {
1405                 BYTE *pSCC= (BYTE *)CoTaskMemAlloc(piSize);
1406                 if( NULL != pSCC )
1407                 {
1408                     int i_priority = -1;
1409                     for( int i=0; i<piCount; ++i )
1410                     {
1411                         if( SUCCEEDED(pSC->GetStreamCaps(i, &p_mt, pSCC)) )
1412                         {
1413                             int i_current_fourcc = GetFourCCFromMediaType( *p_mt );
1414                             int i_current_priority = GetFourCCPriority(i_current_fourcc);
1415
1416                             if( (i_fourcc && (i_current_fourcc != i_fourcc))
1417                              || (i_priority > i_current_priority) )
1418                             {
1419                                 // unwanted chroma, try next media type
1420                                 FreeMediaType( *p_mt );
1421                                 CoTaskMemFree( (PVOID)p_mt );
1422                                 continue;
1423                             }
1424
1425                             if( MEDIATYPE_Video == p_mt->majortype
1426                                     && FORMAT_VideoInfo == p_mt->formattype )
1427                             {
1428                                 VIDEO_STREAM_CONFIG_CAPS *pVSCC = reinterpret_cast<VIDEO_STREAM_CONFIG_CAPS*>(pSCC);
1429                                 VIDEOINFOHEADER *pVih = reinterpret_cast<VIDEOINFOHEADER*>(p_mt->pbFormat);
1430
1431                                 if( i_AvgTimePerFrame )
1432                                 {
1433                                     if( pVSCC->MinFrameInterval > i_AvgTimePerFrame
1434                                       || i_AvgTimePerFrame > pVSCC->MaxFrameInterval )
1435                                     {
1436                                         // required frame rate not compatible, try next media type
1437                                         FreeMediaType( *p_mt );
1438                                         CoTaskMemFree( (PVOID)p_mt );
1439                                         continue;
1440                                     }
1441                                     pVih->AvgTimePerFrame = i_AvgTimePerFrame;
1442                                 }
1443
1444                                 if( i_width )
1445                                 {
1446                                     if((   !pVSCC->OutputGranularityX
1447                                            && i_width != pVSCC->MinOutputSize.cx
1448                                            && i_width != pVSCC->MaxOutputSize.cx)
1449                                        ||
1450                                        (   pVSCC->OutputGranularityX
1451                                            && ((i_width % pVSCC->OutputGranularityX)
1452                                                || pVSCC->MinOutputSize.cx > i_width
1453                                                || i_width > pVSCC->MaxOutputSize.cx )))
1454                                     {
1455                                         // required width not compatible, try next media type
1456                                         FreeMediaType( *p_mt );
1457                                         CoTaskMemFree( (PVOID)p_mt );
1458                                         continue;
1459                                     }
1460                                     pVih->bmiHeader.biWidth = i_width;
1461                                 }
1462
1463                                 if( i_height )
1464                                 {
1465                                     if((   !pVSCC->OutputGranularityY
1466                                            && i_height != pVSCC->MinOutputSize.cy
1467                                            && i_height != pVSCC->MaxOutputSize.cy)
1468                                        ||
1469                                        (   pVSCC->OutputGranularityY
1470                                            && ((i_height % pVSCC->OutputGranularityY)
1471                                                || pVSCC->MinOutputSize.cy > i_height
1472                                                || i_height > pVSCC->MaxOutputSize.cy )))
1473                                     {
1474                                         // required height not compatible, try next media type
1475                                         FreeMediaType( *p_mt );
1476                                         CoTaskMemFree( (PVOID)p_mt );
1477                                         continue;
1478                                     }
1479                                     pVih->bmiHeader.biHeight = i_height;
1480                                 }
1481
1482                                 // Set the sample size and image size.
1483                                 // (Round the image width up to a DWORD boundary.)
1484                                 p_mt->lSampleSize = pVih->bmiHeader.biSizeImage =
1485                                     ((pVih->bmiHeader.biWidth + 3) & ~3) *
1486                                     pVih->bmiHeader.biHeight * (pVih->bmiHeader.biBitCount>>3);
1487
1488                                 // no cropping, use full video input buffer
1489                                 memset(&(pVih->rcSource), 0, sizeof(RECT));
1490                                 memset(&(pVih->rcTarget), 0, sizeof(RECT));
1491
1492                                 // select this format as default
1493                                 if( SUCCEEDED( pSC->SetFormat(p_mt) ) )
1494                                 {
1495                                     i_priority = i_current_priority;
1496                                     if( i_fourcc )
1497                                         // no need to check any more media types
1498                                         i = piCount;
1499                                 }
1500                             }
1501                             else if( p_mt->majortype == MEDIATYPE_Audio
1502                                     && p_mt->formattype == FORMAT_WaveFormatEx )
1503                             {
1504                                 AUDIO_STREAM_CONFIG_CAPS *pASCC = reinterpret_cast<AUDIO_STREAM_CONFIG_CAPS*>(pSCC);
1505                                 WAVEFORMATEX *pWfx = reinterpret_cast<WAVEFORMATEX*>(p_mt->pbFormat);
1506
1507                                 if( i_current_fourcc && (WAVE_FORMAT_PCM == pWfx->wFormatTag) )
1508                                 {
1509                                     int val = i_channels;
1510                                     if( ! val )
1511                                         val = 2;
1512
1513                                     if( (   !pASCC->ChannelsGranularity
1514                                             && (unsigned int)val != pASCC->MinimumChannels
1515                                             && (unsigned int)val != pASCC->MaximumChannels)
1516                                         ||
1517                                         (   pASCC->ChannelsGranularity
1518                                             && ((val % pASCC->ChannelsGranularity)
1519                                                 || (unsigned int)val < pASCC->MinimumChannels
1520                                                 || (unsigned int)val > pASCC->MaximumChannels)))
1521                                     {
1522                                         // required number channels not available, try next media type
1523                                         FreeMediaType( *p_mt );
1524                                         CoTaskMemFree( (PVOID)p_mt );
1525                                         continue;
1526                                     }
1527                                     pWfx->nChannels = val;
1528
1529                                     val = i_samplespersec;
1530                                     if( ! val )
1531                                         val = 44100;
1532
1533                                     if( (   !pASCC->SampleFrequencyGranularity
1534                                             && (unsigned int)val != pASCC->MinimumSampleFrequency
1535                                             && (unsigned int)val != pASCC->MaximumSampleFrequency)
1536                                         ||
1537                                         (   pASCC->SampleFrequencyGranularity
1538                                             && ((val % pASCC->SampleFrequencyGranularity)
1539                                                 || (unsigned int)val < pASCC->MinimumSampleFrequency
1540                                                 || (unsigned int)val > pASCC->MaximumSampleFrequency )))
1541                                     {
1542                                         // required sampling rate not available, try next media type
1543                                         FreeMediaType( *p_mt );
1544                                         CoTaskMemFree( (PVOID)p_mt );
1545                                         continue;
1546                                     }
1547                                     pWfx->nSamplesPerSec = val;
1548
1549                                     val = i_bitspersample;
1550                                     if( ! val )
1551                                     {
1552                                         if( VLC_CODEC_FL32 == i_current_fourcc )
1553                                             val = 32;
1554                                         else
1555                                             val = 16;
1556                                     }
1557
1558                                     if( (   !pASCC->BitsPerSampleGranularity
1559                                             && (unsigned int)val != pASCC->MinimumBitsPerSample
1560                                             && (unsigned int)val != pASCC->MaximumBitsPerSample )
1561                                         ||
1562                                         (   pASCC->BitsPerSampleGranularity
1563                                             && ((val % pASCC->BitsPerSampleGranularity)
1564                                                 || (unsigned int)val < pASCC->MinimumBitsPerSample
1565                                                 || (unsigned int)val > pASCC->MaximumBitsPerSample )))
1566                                     {
1567                                         // required sample size not available, try next media type
1568                                         FreeMediaType( *p_mt );
1569                                         CoTaskMemFree( (PVOID)p_mt );
1570                                         continue;
1571                                     }
1572
1573                                     pWfx->wBitsPerSample = val;
1574                                     pWfx->nBlockAlign = (pWfx->wBitsPerSample * pWfx->nChannels)/8;
1575                                     pWfx->nAvgBytesPerSec = pWfx->nSamplesPerSec * pWfx->nBlockAlign;
1576
1577                                     // select this format as default
1578                                     if( SUCCEEDED( pSC->SetFormat(p_mt) ) )
1579                                     {
1580                                         i_priority = i_current_priority;
1581                                     }
1582                                 }
1583                             }
1584                             FreeMediaType( *p_mt );
1585                             CoTaskMemFree( (PVOID)p_mt );
1586                         }
1587                     }
1588                     CoTaskMemFree( (LPVOID)pSCC );
1589                     if( i_priority >= 0 )
1590                         msg_Dbg( p_this, "EnumDeviceCaps: input pin default format configured");
1591                 }
1592             }
1593             pSC->Release();
1594         }
1595
1596         /*
1597         ** Probe pin for available medias (may be a previously configured one)
1598         */
1599
1600         if( FAILED( p_output_pin->EnumMediaTypes( &p_enummt ) ) )
1601         {
1602             p_output_pin->Release();
1603             continue;
1604         }
1605
1606         while( p_enummt->Next( 1, &p_mt, NULL ) == S_OK )
1607         {
1608             int i_current_fourcc = GetFourCCFromMediaType( *p_mt );
1609             if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Video
1610                 && p_mt->formattype == FORMAT_VideoInfo )
1611             {
1612                 int i_current_width = ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biWidth;
1613                 int i_current_height = ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biHeight;
1614                 LONGLONG i_current_atpf = ((VIDEOINFOHEADER *)p_mt->pbFormat)->AvgTimePerFrame;
1615
1616                 if( i_current_height < 0 )
1617                     i_current_height = -i_current_height;
1618
1619                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
1620                          "accepts chroma: %4.4s, width:%i, height:%i, fps:%f",
1621                          (char *)&i_current_fourcc, i_current_width,
1622                          i_current_height, (10000000.0f/((float)i_current_atpf)) );
1623
1624                 if( ( !i_fourcc || i_fourcc == i_current_fourcc ) &&
1625                     ( !i_width || i_width == i_current_width ) &&
1626                     ( !i_height || i_height == i_current_height ) &&
1627                     ( !i_AvgTimePerFrame || i_AvgTimePerFrame == i_current_atpf ) &&
1628                     mt_count < mt_max )
1629                 {
1630                     /* Pick match */
1631                     mt[mt_count++] = *p_mt;
1632                 }
1633                 else FreeMediaType( *p_mt );
1634             }
1635             else if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Audio
1636                     && p_mt->formattype == FORMAT_WaveFormatEx)
1637             {
1638                 int i_current_channels =
1639                     ((WAVEFORMATEX *)p_mt->pbFormat)->nChannels;
1640                 int i_current_samplespersec =
1641                     ((WAVEFORMATEX *)p_mt->pbFormat)->nSamplesPerSec;
1642                 int i_current_bitspersample =
1643                     ((WAVEFORMATEX *)p_mt->pbFormat)->wBitsPerSample;
1644
1645                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
1646                          "accepts format: %4.4s, channels:%i, "
1647                          "samples/sec:%i bits/sample:%i",
1648                          (char *)&i_current_fourcc, i_current_channels,
1649                          i_current_samplespersec, i_current_bitspersample);
1650
1651                 if( (!i_channels || i_channels == i_current_channels) &&
1652                     (!i_samplespersec ||
1653                      i_samplespersec == i_current_samplespersec) &&
1654                     (!i_bitspersample ||
1655                      i_bitspersample == i_current_bitspersample) &&
1656                     mt_count < mt_max )
1657                 {
1658                     /* Pick  match */
1659                     mt[mt_count++] = *p_mt;
1660
1661                     /* Setup a few properties like the audio latency */
1662                     IAMBufferNegotiation *p_ambuf;
1663                     if( SUCCEEDED( p_output_pin->QueryInterface(
1664                           IID_IAMBufferNegotiation, (void **)&p_ambuf ) ) )
1665                     {
1666                         ALLOCATOR_PROPERTIES AllocProp;
1667                         AllocProp.cbAlign = -1;
1668
1669                         /* 100 ms of latency */
1670                         AllocProp.cbBuffer = i_current_channels *
1671                           i_current_samplespersec *
1672                           i_current_bitspersample / 8 / 10;
1673
1674                         AllocProp.cbPrefix = -1;
1675                         AllocProp.cBuffers = -1;
1676                         p_ambuf->SuggestAllocatorProperties( &AllocProp );
1677                         p_ambuf->Release();
1678                     }
1679                 }
1680                 else FreeMediaType( *p_mt );
1681             }
1682             else if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Stream )
1683             {
1684                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
1685                          "accepts stream format: %4.4s",
1686                          (char *)&i_current_fourcc );
1687
1688                 if( ( !i_fourcc || i_fourcc == i_current_fourcc ) &&
1689                     mt_count < mt_max )
1690                 {
1691                     /* Pick match */
1692                     mt[mt_count++] = *p_mt;
1693                     i_fourcc = i_current_fourcc;
1694                 }
1695                 else FreeMediaType( *p_mt );
1696             }
1697             else
1698             {
1699                 const char * psz_type = "unknown";
1700                 if( p_mt->majortype == MEDIATYPE_Video ) psz_type = "video";
1701                 if( p_mt->majortype == MEDIATYPE_Audio ) psz_type = "audio";
1702                 if( p_mt->majortype == MEDIATYPE_Stream ) psz_type = "stream";
1703                 msg_Dbg( p_this, "EnumDeviceCaps: input pin media: unsupported format "
1704                          "(%s %4.4s)", psz_type, (char *)&p_mt->subtype );
1705
1706                 FreeMediaType( *p_mt );
1707             }
1708             CoTaskMemFree( (PVOID)p_mt );
1709         }
1710
1711         if( !mt_count && p_enummt->Reset() == S_OK )
1712         {
1713             // VLC did not find any supported MEDIATYPE for this output pin.
1714             // However the graph builder might insert converter filters in
1715             // the graph if we use a different codec in VLC filter input pin.
1716             // however, in order to avoid nasty surprises, make use of this
1717             // facility only for known unsupported codecs.
1718
1719             while( !mt_count && p_enummt->Next( 1, &p_mt, NULL ) == S_OK )
1720             {
1721                 // the first four bytes of subtype GUID contains the codec FOURCC
1722                 const char *pfcc = (char *)&p_mt->subtype;
1723                 int i_current_fourcc = VLC_FOURCC(pfcc[0], pfcc[1], pfcc[2], pfcc[3]);
1724                 if( VLC_FOURCC('H','C','W','2') == i_current_fourcc
1725                  && p_mt->majortype == MEDIATYPE_Video )
1726                 {
1727                     // output format for 'Hauppauge WinTV PVR PCI II Capture'
1728                     // try I420 as an input format
1729                     i_current_fourcc = VLC_CODEC_I420;
1730                     if( !i_fourcc || i_fourcc == i_current_fourcc )
1731                     {
1732                         // return alternative media type
1733                         AM_MEDIA_TYPE mtr;
1734                         VIDEOINFOHEADER vh;
1735
1736                         mtr.majortype            = MEDIATYPE_Video;
1737                         mtr.subtype              = MEDIASUBTYPE_I420;
1738                         mtr.bFixedSizeSamples    = TRUE;
1739                         mtr.bTemporalCompression = FALSE;
1740                         mtr.pUnk                 = NULL;
1741                         mtr.formattype           = FORMAT_VideoInfo;
1742                         mtr.cbFormat             = sizeof(vh);
1743                         mtr.pbFormat             = (BYTE *)&vh;
1744
1745                         memset(&vh, 0, sizeof(vh));
1746
1747                         vh.bmiHeader.biSize   = sizeof(vh.bmiHeader);
1748                         vh.bmiHeader.biWidth  = i_width > 0 ? i_width :
1749                             ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biWidth;
1750                         vh.bmiHeader.biHeight = i_height > 0 ? i_height :
1751                             ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biHeight;
1752                         vh.bmiHeader.biPlanes      = 3;
1753                         vh.bmiHeader.biBitCount    = 12;
1754                         vh.bmiHeader.biCompression = VLC_CODEC_I420;
1755                         vh.bmiHeader.biSizeImage   = vh.bmiHeader.biWidth * 12 *
1756                             vh.bmiHeader.biHeight / 8;
1757                         mtr.lSampleSize            = vh.bmiHeader.biSizeImage;
1758
1759                         msg_Dbg( p_this, "EnumDeviceCaps: input pin media: using 'I420' in place of unsupported format 'HCW2'");
1760
1761                         if( SUCCEEDED(CopyMediaType(mt+mt_count, &mtr)) )
1762                             ++mt_count;
1763                     }
1764                 }
1765                 FreeMediaType( *p_mt );
1766             }
1767         }
1768
1769         p_enummt->Release();
1770         p_output_pin->Release();
1771     }
1772
1773     p_enumpins->Release();
1774     return mt_count;
1775 }
1776
1777 /*****************************************************************************
1778  * ReadCompressed: reads compressed (MPEG/DV) data from the device.
1779  *****************************************************************************
1780  * Returns -1 in case of error, 0 in case of EOF, otherwise the number of
1781  * bytes.
1782  *****************************************************************************/
1783 static block_t *ReadCompressed( access_t *p_access )
1784 {
1785     access_sys_t   *p_sys = p_access->p_sys;
1786     dshow_stream_t *p_stream = NULL;
1787     VLCMediaSample sample;
1788
1789     /* Read 1 DV/MPEG frame (they contain the video and audio data) */
1790
1791     /* There must be only 1 elementary stream to produce a valid stream
1792      * of MPEG or DV data */
1793     p_stream = p_sys->pp_streams[0];
1794
1795     while( 1 )
1796     {
1797         if( !vlc_object_alive (p_access) ) return NULL;
1798
1799         /* Get new sample/frame from the elementary stream (blocking). */
1800         vlc_mutex_lock( &p_sys->lock );
1801
1802         if( p_stream->p_capture_filter->CustomGetPin()
1803               ->CustomGetSample( &sample ) != S_OK )
1804         {
1805             /* No data available. Wait until some data has arrived */
1806             vlc_cond_wait( &p_sys->wait, &p_sys->lock );
1807             vlc_mutex_unlock( &p_sys->lock );
1808             continue;
1809         }
1810
1811         vlc_mutex_unlock( &p_sys->lock );
1812
1813         /*
1814          * We got our sample
1815          */
1816         block_t *p_block;
1817         uint8_t *p_data;
1818         int i_data_size = sample.p_sample->GetActualDataLength();
1819
1820         if( !i_data_size || !(p_block = block_New( p_access, i_data_size )) )
1821         {
1822             sample.p_sample->Release();
1823             continue;
1824         }
1825
1826         sample.p_sample->GetPointer( &p_data );
1827         memcpy( p_block->p_buffer, p_data, i_data_size );
1828         sample.p_sample->Release();
1829
1830         /* The caller got what he wanted */
1831         return p_block;
1832     }
1833
1834     return NULL; /* never reached */
1835 }
1836
1837 /****************************************************************************
1838  * Demux:
1839  ****************************************************************************/
1840 static int Demux( demux_t *p_demux )
1841 {
1842     access_sys_t *p_sys = (access_sys_t *)p_demux->p_sys;
1843     int i_found_samples;
1844
1845     i_found_samples = 0;
1846     vlc_mutex_lock( &p_sys->lock );
1847
1848     while ( !i_found_samples )
1849     {
1850         /* Try to grab samples from all streams */
1851         for( int i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
1852         {
1853             dshow_stream_t *p_stream = p_sys->pp_streams[i_stream];
1854             if( p_stream->p_capture_filter &&
1855                 p_stream->p_capture_filter->CustomGetPin()
1856                 ->CustomGetSamples( p_stream->samples_queue ) == S_OK )
1857             {
1858                 i_found_samples = 1;
1859             }
1860         }
1861
1862         if ( !i_found_samples)
1863         {
1864             /* Didn't find any audio nor video sample, just wait till the
1865              * dshow thread pushes some samples */
1866             vlc_cond_wait( &p_sys->wait, &p_sys->lock );
1867             /* Some DShow thread pushed data, or the OS broke the wait all
1868              * by itself. In all cases, it's *strongly* advised to test the
1869              * condition again, so let the loop do the test again */
1870         }
1871     }
1872
1873     vlc_mutex_unlock( &p_sys->lock );
1874
1875     for ( int i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
1876     {
1877         int i_samples;
1878         dshow_stream_t *p_stream = p_sys->pp_streams[i_stream];
1879
1880         i_samples = p_stream->samples_queue.size();
1881         while ( i_samples > 0 )
1882         {
1883             int i_data_size;
1884             uint8_t *p_data;
1885             block_t *p_block;
1886             VLCMediaSample sample;
1887
1888             sample = p_stream->samples_queue.front();
1889             p_stream->samples_queue.pop_front();
1890
1891             i_data_size = sample.p_sample->GetActualDataLength();
1892             sample.p_sample->GetPointer( &p_data );
1893
1894             REFERENCE_TIME i_pts, i_end_date;
1895             HRESULT hr = sample.p_sample->GetTime( &i_pts, &i_end_date );
1896             if( hr != VFW_S_NO_STOP_TIME && hr != S_OK ) i_pts = 0;
1897
1898             if( !i_pts )
1899             {
1900                 if( p_stream->mt.majortype == MEDIATYPE_Video || !p_stream->b_pts )
1901                 {
1902                     /* Use our data timestamp */
1903                     i_pts = sample.i_timestamp;
1904                     p_stream->b_pts = true;
1905                 }
1906             }
1907
1908             i_pts /= 10; /* Dshow works with 100 nano-seconds resolution */
1909
1910 #if 0
1911             msg_Dbg( p_demux, "Read() stream: %i, size: %i, PTS: %"PRId64,
1912                      i_stream, i_data_size, i_pts );
1913 #endif
1914
1915             p_block = block_New( p_demux, i_data_size );
1916             memcpy( p_block->p_buffer, p_data, i_data_size );
1917             p_block->i_pts = p_block->i_dts = i_pts;
1918             sample.p_sample->Release();
1919
1920             es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_pts > 0 ? i_pts : 0 );
1921             es_out_Send( p_demux->out, p_stream->p_es, p_block );
1922
1923             i_samples--;
1924         }
1925     }
1926
1927     return 1;
1928 }
1929
1930 /*****************************************************************************
1931  * AccessControl:
1932  *****************************************************************************/
1933 static int AccessControl( access_t *p_access, int i_query, va_list args )
1934 {
1935     bool    *pb_bool;
1936     int64_t *pi_64;
1937
1938     switch( i_query )
1939     {
1940     /* */
1941     case ACCESS_CAN_SEEK:
1942     case ACCESS_CAN_FASTSEEK:
1943     case ACCESS_CAN_PAUSE:
1944     case ACCESS_CAN_CONTROL_PACE:
1945         pb_bool = (bool*)va_arg( args, bool* );
1946         *pb_bool = false;
1947         break;
1948
1949     /* */
1950     case ACCESS_GET_PTS_DELAY:
1951         pi_64 = (int64_t*)va_arg( args, int64_t * );
1952         *pi_64 =
1953             INT64_C(1000) * var_InheritInteger( p_access, "live-caching" );
1954         break;
1955
1956     /* */
1957     case ACCESS_SET_PAUSE_STATE:
1958     case ACCESS_GET_TITLE_INFO:
1959     case ACCESS_SET_TITLE:
1960     case ACCESS_SET_SEEKPOINT:
1961     case ACCESS_SET_PRIVATE_ID_STATE:
1962         return VLC_EGENERIC;
1963
1964     default:
1965         msg_Warn( p_access, "unimplemented query in control" );
1966         return VLC_EGENERIC;
1967     }
1968
1969     return VLC_SUCCESS;
1970 }
1971
1972 /****************************************************************************
1973  * DemuxControl:
1974  ****************************************************************************/
1975 static int DemuxControl( demux_t *p_demux, int i_query, va_list args )
1976 {
1977     bool    *pb;
1978     int64_t *pi64;
1979
1980     switch( i_query )
1981     {
1982     /* Special for access_demux */
1983     case DEMUX_CAN_PAUSE:
1984     case DEMUX_CAN_SEEK:
1985     case DEMUX_SET_PAUSE_STATE:
1986     case DEMUX_CAN_CONTROL_PACE:
1987         pb = (bool*)va_arg( args, bool * );
1988         *pb = false;
1989         return VLC_SUCCESS;
1990
1991     case DEMUX_GET_PTS_DELAY:
1992         pi64 = (int64_t*)va_arg( args, int64_t * );
1993         *pi64 =
1994             INT64_C(1000) * var_InheritInteger( p_demux, "live-caching" );
1995         return VLC_SUCCESS;
1996
1997     case DEMUX_GET_TIME:
1998         pi64 = (int64_t*)va_arg( args, int64_t * );
1999         *pi64 = mdate();
2000         return VLC_SUCCESS;
2001
2002     /* TODO implement others */
2003     default:
2004         return VLC_EGENERIC;
2005     }
2006
2007     return VLC_EGENERIC;
2008 }
2009
2010 /*****************************************************************************
2011  * config variable callback
2012  *****************************************************************************/
2013 static int FindDevices( vlc_object_t *p_this, const char *psz_name,
2014                             char ***vp, char ***tp )
2015 {
2016     bool b_audio = !strcmp( psz_name, CFG_PREFIX "adev" );
2017
2018     /* Find list of devices */
2019     list<string> list_devices;
2020
2021     /* Initialize OLE/COM */
2022     CoInitializeEx( NULL, COINIT_APARTMENTTHREADED );
2023
2024     FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
2025
2026     /* Uninitialize OLE/COM */
2027     CoUninitialize();
2028
2029     unsigned count = 2 + list_devices.size(), i = 2;
2030     char **values = (char **)xmalloc( count * sizeof(*values) );
2031     char **texts = (char **)xmalloc( count * sizeof(*texts) );
2032
2033     values[0] = strdup( "" );
2034     texts[0] = strdup( N_("Default") );
2035     values[1] = strdup( "none" );
2036     texts[1] = strdup( N_("None") );
2037
2038     for( list<string>::iterator iter = list_devices.begin();
2039          iter != list_devices.end();
2040          ++iter )
2041     {
2042         assert( i < count );
2043         values[i] = strdup( iter->c_str() );
2044         texts[i] = strdup( iter->c_str() );
2045         i++;
2046     }
2047
2048     *vp = values;
2049     *tp = texts;
2050     return count;
2051 }
2052
2053 static int ConfigDevicesCallback( vlc_object_t *p_this, char const *psz_name,
2054                                   vlc_value_t newval, vlc_value_t, void * )
2055 {
2056     module_config_t *p_item;
2057     bool b_audio = false;
2058     char *psz_device = NULL;
2059     int i_ret = VLC_SUCCESS;
2060
2061     if( !EMPTY_STR( newval.psz_string ) )
2062         psz_device = strdup( newval.psz_string );
2063
2064     /* Initialize OLE/COM */
2065     CoInitializeEx( NULL, COINIT_APARTMENTTHREADED );
2066
2067     p_item = config_FindConfig( p_this, psz_name );
2068
2069     if( !p_item )
2070     {
2071         free( psz_device );
2072         CoUninitialize();
2073         return VLC_SUCCESS;
2074     }
2075
2076     if( !strcmp( psz_name, CFG_PREFIX "adev" ) ) b_audio = true;
2077
2078     string devicename;
2079
2080     if( psz_device )
2081     {
2082         devicename = psz_device ;
2083     }
2084     else
2085     {
2086         /* If no device name was specified, pick the 1st one */
2087         list<string> list_devices;
2088
2089         /* Enumerate devices */
2090         FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
2091         if( list_devices.empty() )
2092         {
2093             CoUninitialize();
2094             return VLC_EGENERIC;
2095         }
2096         devicename = *list_devices.begin();
2097     }
2098
2099     IBaseFilter *p_device_filter =
2100         FindCaptureDevice( p_this, &devicename, NULL, b_audio );
2101     if( p_device_filter )
2102     {
2103         ShowPropertyPage( p_device_filter );
2104         p_device_filter->Release();
2105     }
2106     else
2107     {
2108         msg_Err( p_this, "didn't find device: %s", devicename.c_str() );
2109         i_ret = VLC_EGENERIC;
2110     }
2111
2112     /* Uninitialize OLE/COM */
2113     CoUninitialize();
2114
2115     free( psz_device );
2116     return i_ret;
2117 }
2118
2119 /*****************************************************************************
2120  * Properties
2121  *****************************************************************************/
2122
2123 static void ShowPropertyPage( IUnknown *obj )
2124 {
2125     ISpecifyPropertyPages *p_spec;
2126     CAUUID cauuid;
2127
2128     HRESULT hr = obj->QueryInterface( IID_ISpecifyPropertyPages,
2129                                       (void **)&p_spec );
2130     if( FAILED(hr) ) return;
2131
2132     if( SUCCEEDED(p_spec->GetPages( &cauuid )) )
2133     {
2134         if( cauuid.cElems > 0 )
2135         {
2136             HWND hwnd_desktop = ::GetDesktopWindow();
2137
2138             OleCreatePropertyFrame( hwnd_desktop, 30, 30, NULL, 1, &obj,
2139                                     cauuid.cElems, cauuid.pElems, 0, 0, NULL );
2140
2141             CoTaskMemFree( cauuid.pElems );
2142         }
2143         p_spec->Release();
2144     }
2145 }
2146
2147 static void ShowDeviceProperties( vlc_object_t *p_this,
2148                                   ICaptureGraphBuilder2 *p_graph,
2149                                   IBaseFilter *p_device_filter,
2150                                   bool b_audio )
2151 {
2152     HRESULT hr;
2153     msg_Dbg( p_this, "configuring Device Properties" );
2154
2155     /*
2156      * Video or audio capture filter page
2157      */
2158     ShowPropertyPage( p_device_filter );
2159
2160     /*
2161      * Audio capture pin
2162      */
2163     if( p_graph && b_audio )
2164     {
2165         IAMStreamConfig *p_SC;
2166
2167         msg_Dbg( p_this, "showing WDM Audio Configuration Pages" );
2168
2169         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2170                                      &MEDIATYPE_Audio, p_device_filter,
2171                                      IID_IAMStreamConfig, (void **)&p_SC );
2172         if( SUCCEEDED(hr) )
2173         {
2174             ShowPropertyPage(p_SC);
2175             p_SC->Release();
2176         }
2177
2178         /*
2179          * TV Audio filter
2180          */
2181         IAMTVAudio *p_TVA;
2182         HRESULT hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2183                                              &MEDIATYPE_Audio, p_device_filter,
2184                                              IID_IAMTVAudio, (void **)&p_TVA );
2185         if( SUCCEEDED(hr) )
2186         {
2187             ShowPropertyPage(p_TVA);
2188             p_TVA->Release();
2189         }
2190     }
2191
2192     /*
2193      * Video capture pin
2194      */
2195     if( p_graph && !b_audio )
2196     {
2197         IAMStreamConfig *p_SC;
2198
2199         msg_Dbg( p_this, "showing WDM Video Configuration Pages" );
2200
2201         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2202                                      &MEDIATYPE_Interleaved, p_device_filter,
2203                                      IID_IAMStreamConfig, (void **)&p_SC );
2204         if( FAILED(hr) )
2205         {
2206             hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2207                                          &MEDIATYPE_Video, p_device_filter,
2208                                          IID_IAMStreamConfig, (void **)&p_SC );
2209         }
2210
2211         if( FAILED(hr) )
2212         {
2213             hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2214                                          &MEDIATYPE_Stream, p_device_filter,
2215                                          IID_IAMStreamConfig, (void **)&p_SC );
2216         }
2217
2218         if( SUCCEEDED(hr) )
2219         {
2220             ShowPropertyPage(p_SC);
2221             p_SC->Release();
2222         }
2223     }
2224 }
2225
2226 static void ShowTunerProperties( vlc_object_t *p_this,
2227                                  ICaptureGraphBuilder2 *p_graph,
2228                                  IBaseFilter *p_device_filter,
2229                                  bool b_audio )
2230 {
2231     HRESULT hr;
2232     msg_Dbg( p_this, "configuring Tuner Properties" );
2233
2234     if( !p_graph || b_audio ) return;
2235
2236     IAMTVTuner *p_TV;
2237     hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2238                                  &MEDIATYPE_Interleaved, p_device_filter,
2239                                  IID_IAMTVTuner, (void **)&p_TV );
2240     if( FAILED(hr) )
2241     {
2242         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2243                                      &MEDIATYPE_Video, p_device_filter,
2244                                      IID_IAMTVTuner, (void **)&p_TV );
2245     }
2246
2247     if( FAILED(hr) )
2248     {
2249         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2250                                      &MEDIATYPE_Stream, p_device_filter,
2251                                      IID_IAMTVTuner, (void **)&p_TV );
2252     }
2253
2254     if( SUCCEEDED(hr) )
2255     {
2256         ShowPropertyPage(p_TV);
2257         p_TV->Release();
2258     }
2259 }
2260
2261 static void ConfigTuner( vlc_object_t *p_this, ICaptureGraphBuilder2 *p_graph,
2262                          IBaseFilter *p_device_filter )
2263 {
2264     int i_channel, i_country, i_input, i_amtuner_mode, i_standard;
2265     long l_modes = 0;
2266     unsigned i_frequency;
2267     IAMTVTuner *p_TV;
2268     HRESULT hr;
2269
2270     if( !p_graph ) return;
2271
2272     i_channel =      var_GetInteger( p_this, CFG_PREFIX "tuner-channel" );
2273     i_country =      var_GetInteger( p_this, CFG_PREFIX "tuner-country" );
2274     i_input =        var_GetInteger( p_this, CFG_PREFIX "tuner-input" );
2275     i_amtuner_mode = var_GetInteger( p_this, CFG_PREFIX "amtuner-mode" );
2276     i_frequency =    var_GetInteger( p_this, CFG_PREFIX "tuner-frequency" );
2277     i_standard =     var_GetInteger( p_this, CFG_PREFIX "tuner-standard" );
2278
2279     if( !i_channel && !i_frequency && !i_country && !i_input ) return; /* Nothing to do */
2280
2281     msg_Dbg( p_this, "tuner config: channel %i, frequency %i, country %i, input type %i, standard %s",
2282              i_channel, i_frequency, i_country, i_input, ppsz_standards_list_text[i_standard] );
2283
2284
2285     hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Interleaved,
2286                                  p_device_filter, IID_IAMTVTuner,
2287                                  (void **)&p_TV );
2288     if( FAILED(hr) )
2289     {
2290         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Video,
2291                                      p_device_filter, IID_IAMTVTuner,
2292                                      (void **)&p_TV );
2293     }
2294
2295     if( FAILED(hr) )
2296     {
2297         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Stream,
2298                                      p_device_filter, IID_IAMTVTuner,
2299                                      (void **)&p_TV );
2300     }
2301
2302     if( FAILED(hr) )
2303     {
2304         msg_Dbg( p_this, "couldn't find tuner interface" );
2305         return;
2306     }
2307
2308     hr = p_TV->GetAvailableModes( &l_modes );
2309     if( SUCCEEDED(hr) && (l_modes & i_amtuner_mode) )
2310     {
2311         hr = p_TV->put_Mode( (AMTunerModeType)i_amtuner_mode );
2312     }
2313
2314     if( i_input == 1 ) p_TV->put_InputType( 0, TunerInputCable );
2315     else if( i_input == 2 ) p_TV->put_InputType( 0, TunerInputAntenna );
2316
2317     p_TV->put_CountryCode( i_country );
2318
2319     if( i_frequency <= 0 ) p_TV->put_Channel( i_channel, AMTUNER_SUBCHAN_NO_TUNE,
2320                        AMTUNER_SUBCHAN_NO_TUNE );
2321
2322     if( i_frequency > 0 || i_standard > 0) {
2323         IKsPropertySet *pKs = NULL;
2324         DWORD dw_supported = 0;
2325         KSPROPERTY_TUNER_MODE_CAPS_S ModeCaps;
2326         KSPROPERTY_TUNER_FREQUENCY_S Frequency;
2327         KSPROPERTY_TUNER_STANDARD_S Standard;
2328
2329         hr = p_TV->QueryInterface(IID_IKsPropertySet,(void **)&pKs);
2330         if (FAILED(hr))
2331         {
2332             msg_Dbg( p_this, "Couldn't QI for IKsPropertySet" );
2333             p_TV->Release();
2334             return;
2335         }
2336
2337         memset(&ModeCaps,0,sizeof(KSPROPERTY_TUNER_MODE_CAPS_S));
2338         memset(&Frequency,0,sizeof(KSPROPERTY_TUNER_FREQUENCY_S));
2339         memset(&Standard,0,sizeof(KSPROPERTY_TUNER_STANDARD_S));
2340         ModeCaps.Mode = AMTUNER_MODE_TV;
2341
2342         hr = pKs->QuerySupported(PROPSETID_TUNER,
2343                 KSPROPERTY_TUNER_MODE_CAPS,&dw_supported);
2344         if(SUCCEEDED(hr) && dw_supported&KSPROPERTY_SUPPORT_GET)
2345         {
2346             DWORD cbBytes=0;
2347             hr = pKs->Get(PROPSETID_TUNER,KSPROPERTY_TUNER_MODE_CAPS,
2348                 INSTANCEDATA_OF_PROPERTY_PTR(&ModeCaps),
2349                 INSTANCEDATA_OF_PROPERTY_SIZE(ModeCaps),
2350                 &ModeCaps,
2351                 sizeof(ModeCaps),
2352                 &cbBytes);
2353         }
2354         else
2355         {
2356             msg_Dbg( p_this, "KSPROPERTY_TUNER_MODE_CAPS not supported!" );
2357             goto free_on_error;
2358         }
2359
2360         msg_Dbg( p_this, "Frequency range supported from %ld to %ld.",
2361                  ModeCaps.MinFrequency, ModeCaps.MaxFrequency);
2362         msg_Dbg( p_this, "Video standards supported by the tuner: ");
2363         for(size_t i = 0 ; i < ARRAY_SIZE(ppsz_standards_list_text); i++) {
2364             if(ModeCaps.StandardsSupported & i_standards_list[i])
2365                 msg_Dbg( p_this, "%s, ", ppsz_standards_list_text[i]);
2366         }
2367
2368         if(i_frequency > 0) {
2369             Frequency.Frequency=i_frequency;
2370             if(ModeCaps.Strategy==KS_TUNER_STRATEGY_DRIVER_TUNES)
2371                 Frequency.TuningFlags=KS_TUNER_TUNING_FINE;
2372             else
2373                 Frequency.TuningFlags=KS_TUNER_TUNING_EXACT;
2374
2375             if(i_frequency>=ModeCaps.MinFrequency && i_frequency<=ModeCaps.MaxFrequency)
2376             {
2377
2378                 hr = pKs->Set(PROPSETID_TUNER,
2379                     KSPROPERTY_TUNER_FREQUENCY,
2380                     INSTANCEDATA_OF_PROPERTY_PTR(&Frequency),
2381                     INSTANCEDATA_OF_PROPERTY_SIZE(Frequency),
2382                     &Frequency,
2383                     sizeof(Frequency));
2384                 if(FAILED(hr))
2385                 {
2386                     msg_Dbg( p_this, "Couldn't set KSPROPERTY_TUNER_FREQUENCY!" );
2387                     goto free_on_error;
2388                 }
2389             }
2390             else
2391             {
2392                 msg_Dbg( p_this, "Requested frequency exceeds the supported range!" );
2393                 goto free_on_error;
2394             }
2395         }
2396
2397         if(i_standard > 0) {
2398             if(i_standard & ModeCaps.StandardsSupported )
2399             {
2400                 Standard.Standard = i_standard;
2401                 hr = pKs->Set(PROPSETID_TUNER,
2402                     KSPROPERTY_TUNER_STANDARD,
2403                     INSTANCEDATA_OF_PROPERTY_PTR(&Standard),
2404                     INSTANCEDATA_OF_PROPERTY_SIZE(Standard),
2405                     &Standard,
2406                     sizeof(Standard));
2407                 if(FAILED(hr))
2408                 {
2409                     msg_Dbg( p_this, "Couldn't set KSPROPERTY_TUNER_STANDARD!" );
2410                     goto free_on_error;
2411                 }
2412             }
2413             else
2414             {
2415                 msg_Dbg( p_this, "Requested video standard is not supported by the tuner!" );
2416                 goto free_on_error;
2417             }
2418         }
2419 free_on_error:
2420         pKs->Release();
2421     }
2422
2423     p_TV->Release();
2424 }