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

   1 /*****************************************************************************
   2  * dshow.cpp : DirectShow access module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2002, 2003 VideoLAN
   5  * $Id$
   6  *
   7  * Author: Gildas Bazin <gbazin@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30
  31 #include <vlc/vlc.h>
  32 #include <vlc/input.h>
  33 #include <vlc/vout.h>
  34
  35 #include "common.h"
  36 #include "filter.h"
  37
  38 /*****************************************************************************
  39  * Access: local prototypes
  40  *****************************************************************************/
  41 static block_t *ReadCompressed( access_t * );
  42 static int AccessControl ( access_t *, int, va_list );
  43
  44 static int Demux       ( demux_t * );
  45 static int DemuxControl( demux_t *, int, va_list );
  46
  47 static int OpenDevice( vlc_object_t *, access_sys_t *, string, vlc_bool_t );
  48 static IBaseFilter *FindCaptureDevice( vlc_object_t *, string *,
  49                                        list<string> *, vlc_bool_t );
  50 static size_t EnumDeviceCaps( vlc_object_t *, IBaseFilter *,
  51                               int, int, int, int, int, int,
  52                               AM_MEDIA_TYPE *mt, size_t );
  53 static bool ConnectFilters( vlc_object_t *, access_sys_t *,
  54                             IBaseFilter *, CaptureFilter * );
  55 static int FindDevicesCallback( vlc_object_t *, char const *,
  56                                 vlc_value_t, vlc_value_t, void * );
  57 static int ConfigDevicesCallback( vlc_object_t *, char const *,
  58                                   vlc_value_t, vlc_value_t, void * );
  59
  60 static void ShowPropertyPage( IUnknown * );
  61 static void ShowDeviceProperties( vlc_object_t *, ICaptureGraphBuilder2 *,
  62                                   IBaseFilter *, vlc_bool_t );
  63 static void ShowTunerProperties( vlc_object_t *, ICaptureGraphBuilder2 *,
  64                                  IBaseFilter *, vlc_bool_t );
  65 static void ConfigTuner( vlc_object_t *, ICaptureGraphBuilder2 *,
  66                          IBaseFilter * );
  67
  68 /*****************************************************************************
  69  * Module descriptor
  70  *****************************************************************************/
  71 static char *ppsz_vdev[] = { "", "none" };
  72 static char *ppsz_vdev_text[] = { N_("Default"), N_("None") };
  73 static char *ppsz_adev[] = { "", "none" };
  74 static char *ppsz_adev_text[] = { N_("Default"), N_("None") };
  75 static int  pi_tuner_input[] = { 0, 1, 2 };
  76 static char *ppsz_tuner_input_text[] =
  77     {N_("Default"), N_("Cable"), N_("Antenna")};
  78
  79 #define CACHING_TEXT N_("Caching value in ms")
  80 #define CACHING_LONGTEXT N_( \
  81     "Allows you to modify the default caching value for DirectShow streams. " \
  82     "This value should be set in milliseconds units." )
  83 #define VDEV_TEXT N_("Video device name")
  84 #define VDEV_LONGTEXT N_( \
  85     "You can specify the name of the video device that will be used by the " \
  86     "DirectShow plugin. If you don't specify anything, the default device " \
  87     "will be used.")
  88 #define ADEV_TEXT N_("Audio device name")
  89 #define ADEV_LONGTEXT N_( \
  90     "You can specify the name of the audio device that will be used by the " \
  91     "DirectShow plugin. If you don't specify anything, the default device " \
  92     "will be used.")
  93 #define SIZE_TEXT N_("Video size")
  94 #define SIZE_LONGTEXT N_( \
  95     "You can specify the size of the video that will be displayed by the " \
  96     "DirectShow plugin. If you don't specify anything the default size for " \
  97     "your device will be used.")
  98 #define CHROMA_TEXT N_("Video input chroma format")
  99 #define CHROMA_LONGTEXT N_( \
 100     "Force the DirectShow video input to use a specific chroma format " \
 101     "(eg. I420 (default), RV24, etc.)")
 102 #define FPS_TEXT N_("Video input frame rate")
 103 #define FPS_LONGTEXT N_( \
 104     "Force the DirectShow video input to use a specific frame rate" \
 105     "(eg. 0 means default, 25, 29.97, 50, 59.94, etc.)")
 106 #define CONFIG_TEXT N_("Device properties")
 107 #define CONFIG_LONGTEXT N_( \
 108     "Show the properties dialog of the selected device before starting the " \
 109     "stream.")
 110 #define TUNER_TEXT N_("Tuner properties")
 111 #define TUNER_LONGTEXT N_( \
 112     "Show the tuner properties [channel selection] page." )
 113 #define CHANNEL_TEXT N_("Tuner TV Channel")
 114 #define CHANNEL_LONGTEXT N_( \
 115     "Allows you to set the TV channel the tuner will set to " \
 116     "(0 means default)." )
 117 #define COUNTRY_TEXT N_("Tuner country code")
 118 #define COUNTRY_LONGTEXT N_( \
 119     "Allows you to set the tuner country code that establishes the current " \
 120     "channel-to-frequency mapping (0 means default)." )
 121 #define TUNER_INPUT_TEXT N_("Tuner input type")
 122 #define TUNER_INPUT_LONGTEXT N_( \
 123     "Allows you to select the tuner input type (Cable/Antenna)." )
 124
 125 static int  CommonOpen ( vlc_object_t *, access_sys_t *, vlc_bool_t );
 126 static void CommonClose( vlc_object_t *, access_sys_t * );
 127
 128 static int  AccessOpen ( vlc_object_t * );
 129 static void AccessClose( vlc_object_t * );
 130
 131 static int  DemuxOpen  ( vlc_object_t * );
 132 static void DemuxClose ( vlc_object_t * );
 133
 134 vlc_module_begin();
 135     set_shortname( _("DirectShow") );
 136     set_description( _("DirectShow input") );
 137     set_category( CAT_INPUT );
 138     set_subcategory( SUBCAT_INPUT_ACCESS );
 139     add_integer( "dshow-caching", (mtime_t)(0.2*CLOCK_FREQ) / 1000, NULL,
 140                  CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
 141
 142     add_string( "dshow-vdev", NULL, NULL, VDEV_TEXT, VDEV_LONGTEXT, VLC_FALSE);
 143         change_string_list( ppsz_vdev, ppsz_vdev_text, FindDevicesCallback );
 144         change_action_add( FindDevicesCallback, N_("Refresh list") );
 145         change_action_add( ConfigDevicesCallback, N_("Configure") );
 146
 147     add_string( "dshow-adev", NULL, NULL, ADEV_TEXT, ADEV_LONGTEXT, VLC_FALSE);
 148         change_string_list( ppsz_adev, ppsz_adev_text, FindDevicesCallback );
 149         change_action_add( FindDevicesCallback, N_("Refresh list") );
 150         change_action_add( ConfigDevicesCallback, N_("Configure") );
 151
 152     add_string( "dshow-size", NULL, NULL, SIZE_TEXT, SIZE_LONGTEXT, VLC_FALSE);
 153
 154     add_string( "dshow-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
 155                 VLC_TRUE );
 156
 157     add_float( "dshow-fps", 0.0f, NULL, FPS_TEXT, FPS_LONGTEXT,
 158                 VLC_TRUE );
 159
 160     add_bool( "dshow-config", VLC_FALSE, NULL, CONFIG_TEXT, CONFIG_LONGTEXT,
 161               VLC_FALSE );
 162
 163     add_bool( "dshow-tuner", VLC_FALSE, NULL, TUNER_TEXT, TUNER_LONGTEXT,
 164               VLC_FALSE );
 165
 166     add_integer( "dshow-tuner-channel", 0, NULL, CHANNEL_TEXT,
 167                  CHANNEL_LONGTEXT, VLC_TRUE );
 168
 169     add_integer( "dshow-tuner-country", 0, NULL, COUNTRY_TEXT,
 170                  COUNTRY_LONGTEXT, VLC_TRUE );
 171
 172     add_integer( "dshow-tuner-input", 0, NULL, TUNER_INPUT_TEXT,
 173                  TUNER_INPUT_LONGTEXT, VLC_TRUE );
 174         change_integer_list( pi_tuner_input, ppsz_tuner_input_text, 0 );
 175
 176     add_shortcut( "dshow" );
 177     set_capability( "access_demux", 0 );
 178     set_callbacks( DemuxOpen, DemuxClose );
 179
 180     add_submodule();
 181     set_description( _("DirectShow input") );
 182     add_shortcut( "dshow" );
 183     set_capability( "access2", 0 );
 184     set_callbacks( AccessOpen, AccessClose );
 185
 186 vlc_module_end();
 187
 188 /*****************************************************************************
 189  * DirectShow elementary stream descriptor
 190  *****************************************************************************/
 191 typedef struct dshow_stream_t
 192 {
 193     string          devicename;
 194     IBaseFilter     *p_device_filter;
 195     CaptureFilter   *p_capture_filter;
 196     AM_MEDIA_TYPE   mt;
 197
 198     union
 199     {
 200       VIDEOINFOHEADER video;
 201       WAVEFORMATEX    audio;
 202
 203     } header;
 204
 205     int             i_fourcc;
 206     es_out_id_t     *p_es;
 207
 208     vlc_bool_t      b_pts;
 209
 210 } dshow_stream_t;
 211
 212 /*****************************************************************************
 213  * DirectShow utility functions
 214  *****************************************************************************/
 215 static void CreateDirectShowGraph( access_sys_t *p_sys )
 216 {
 217     p_sys->i_crossbar_route_depth = 0;
 218
 219     /* Create directshow filter graph */
 220     if( SUCCEEDED( CoCreateInstance( CLSID_FilterGraph, 0, CLSCTX_INPROC,
 221                        (REFIID)IID_IFilterGraph, (void **)&p_sys->p_graph) ) )
 222     {
 223         /* Create directshow capture graph builder if available */
 224         if( SUCCEEDED( CoCreateInstance( CLSID_CaptureGraphBuilder2, 0,
 225                          CLSCTX_INPROC, (REFIID)IID_ICaptureGraphBuilder2,
 226                          (void **)&p_sys->p_capture_graph_builder2 ) ) )
 227         {
 228             p_sys->p_capture_graph_builder2->
 229                 SetFiltergraph((IGraphBuilder *)p_sys->p_graph);
 230         }
 231
 232         p_sys->p_graph->QueryInterface( IID_IMediaControl,
 233                                         (void **)&p_sys->p_control );
 234     }
 235 }
 236
 237 static void DeleteDirectShowGraph( access_sys_t *p_sys )
 238 {
 239     DeleteCrossbarRoutes( p_sys );
 240
 241     /* Remove filters from graph */
 242     for( int i = 0; i < p_sys->i_streams; i++ )
 243     {
 244         p_sys->p_graph->RemoveFilter( p_sys->pp_streams[i]->p_capture_filter );
 245         p_sys->p_graph->RemoveFilter( p_sys->pp_streams[i]->p_device_filter );
 246         p_sys->pp_streams[i]->p_capture_filter->Release();
 247         p_sys->pp_streams[i]->p_device_filter->Release();
 248     }
 249
 250     /* Release directshow objects */
 251     if( p_sys->p_control )
 252     {
 253         p_sys->p_control->Release();
 254         p_sys->p_control = NULL;
 255     }
 256     if( p_sys->p_capture_graph_builder2 )
 257     {
 258         p_sys->p_capture_graph_builder2->Release();
 259         p_sys->p_capture_graph_builder2 = NULL;
 260     }
 261
 262     if( p_sys->p_graph )
 263     {
 264         p_sys->p_graph->Release();
 265         p_sys->p_graph = NULL;
 266     }
 267 }
 268
 269 /*****************************************************************************
 270  * CommonOpen: open direct show device
 271  *****************************************************************************/
 272 static int CommonOpen( vlc_object_t *p_this, access_sys_t *p_sys,
 273                        vlc_bool_t b_access_demux )
 274 {
 275     vlc_value_t  val;
 276     int i;
 277
 278     /* Get/parse options and open device(s) */
 279     string vdevname, adevname;
 280     int i_width = 0, i_height = 0, i_chroma = 0;
 281     vlc_bool_t b_audio = VLC_TRUE;
 282
 283     var_Create( p_this, "dshow-config", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 284     var_Create( p_this, "dshow-tuner", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 285
 286     var_Create( p_this, "dshow-vdev", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 287     var_Get( p_this, "dshow-vdev", &val );
 288     if( val.psz_string ) vdevname = string( val.psz_string );
 289     if( val.psz_string ) free( val.psz_string );
 290
 291     var_Create( p_this, "dshow-adev", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 292     var_Get( p_this, "dshow-adev", &val );
 293     if( val.psz_string ) adevname = string( val.psz_string );
 294     if( val.psz_string ) free( val.psz_string );
 295
 296     static struct {char *psz_size; int  i_width; int  i_height;} size_table[] =
 297     { { "subqcif", 128, 96 }, { "qsif", 160, 120 }, { "qcif", 176, 144 },
 298       { "sif", 320, 240 }, { "cif", 352, 288 }, { "cif", 640, 480 },
 299       { 0, 0, 0 },
 300     };
 301
 302     var_Create( p_this, "dshow-size", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 303     var_Get( p_this, "dshow-size", &val );
 304     if( val.psz_string && *val.psz_string )
 305     {
 306         for( i = 0; size_table[i].psz_size; i++ )
 307         {
 308             if( !strcmp( val.psz_string, size_table[i].psz_size ) )
 309             {
 310                 i_width = size_table[i].i_width;
 311                 i_height = size_table[i].i_height;
 312                 break;
 313             }
 314         }
 315         if( !size_table[i].psz_size ) /* Try to parse "WidthxHeight" */
 316         {
 317             char *psz_parser;
 318             i_width = strtol( val.psz_string, &psz_parser, 0 );
 319             if( *psz_parser == 'x' || *psz_parser == 'X')
 320             {
 321                 i_height = strtol( psz_parser + 1, &psz_parser, 0 );
 322             }
 323             msg_Dbg( p_this, "Width x Height %dx%d", i_width, i_height );
 324         }
 325     }
 326     if( val.psz_string ) free( val.psz_string );
 327
 328     var_Create( p_this, "dshow-chroma", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 329     var_Get( p_this, "dshow-chroma", &val );
 330     if( val.psz_string && strlen( val.psz_string ) >= 4 )
 331     {
 332         i_chroma = VLC_FOURCC( val.psz_string[0], val.psz_string[1],
 333                                val.psz_string[2], val.psz_string[3] );
 334     }
 335     if( val.psz_string ) free( val.psz_string );
 336
 337     var_Create( p_this, "dshow-fps", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
 338     var_Create( p_this, "dshow-tuner-channel",
 339                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 340     var_Create( p_this, "dshow-tuner-country",
 341                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 342     var_Create( p_this, "dshow-tuner-input",
 343                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 344
 345     var_Create( p_this, "dshow-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 346
 347     /* Initialize OLE/COM */
 348     CoInitialize( 0 );
 349
 350     /* Initialize some data */
 351     p_sys->i_streams = 0;
 352     p_sys->pp_streams = 0;
 353     p_sys->i_width = i_width;
 354     p_sys->i_height = i_height;
 355     p_sys->i_chroma = i_chroma;
 356
 357     p_sys->p_graph = NULL;
 358     p_sys->p_capture_graph_builder2 = NULL;
 359     p_sys->p_control = NULL;
 360
 361     vlc_mutex_init( p_this, &p_sys->lock );
 362     vlc_cond_init( p_this, &p_sys->wait );
 363
 364     /* Build directshow graph */
 365     CreateDirectShowGraph( p_sys );
 366
 367     if( OpenDevice( p_this, p_sys, vdevname, 0 ) != VLC_SUCCESS )
 368     {
 369         msg_Err( p_this, "can't open video");
 370     }
 371     else
 372     {
 373         /* Check if we can handle the demuxing ourselves or need to spawn
 374          * a demuxer module */
 375         dshow_stream_t *p_stream = p_sys->pp_streams[p_sys->i_streams-1];
 376
 377         if( p_stream->mt.majortype == MEDIATYPE_Video )
 378         {
 379             if( /* Raw DV stream */
 380                 p_stream->i_fourcc == VLC_FOURCC('d','v','s','l') ||
 381                 p_stream->i_fourcc == VLC_FOURCC('d','v','s','d') ||
 382                 p_stream->i_fourcc == VLC_FOURCC('d','v','h','d') ||
 383                 /* Raw MPEG video stream */
 384                 p_stream->i_fourcc == VLC_FOURCC('m','p','2','v') )
 385             {
 386                 b_audio = VLC_FALSE;
 387
 388                 if( b_access_demux )
 389                 {
 390                     /* Let the access (only) take care of that */
 391                     return VLC_EGENERIC;
 392                 }
 393             }
 394         }
 395
 396         if( p_stream->mt.majortype == MEDIATYPE_Stream )
 397         {
 398             b_audio = VLC_FALSE;
 399
 400             if( b_access_demux )
 401             {
 402                 /* Let the access (only) take care of that */
 403                 return VLC_EGENERIC;
 404             }
 405
 406             var_Get( p_this, "dshow-tuner", &val );
 407             if( val.b_bool )
 408             {
 409                 /* FIXME: we do MEDIATYPE_Stream here so we don't do
 410                  * it twice. */
 411                 ShowTunerProperties( p_this, p_sys->p_capture_graph_builder2,
 412                                      p_stream->p_device_filter, 0 );
 413             }
 414         }
 415     }
 416
 417     if( b_audio && OpenDevice( p_this, p_sys, adevname, 1 ) != VLC_SUCCESS )
 418     {
 419         msg_Err( p_this, "can't open audio");
 420     }
 421
 422     for( i = p_sys->i_crossbar_route_depth-1; i >= 0 ; --i )
 423     {
 424         IAMCrossbar *pXbar = p_sys->crossbar_routes[i].pXbar;
 425         LONG VideoInputIndex = p_sys->crossbar_routes[i].VideoInputIndex;
 426         LONG VideoOutputIndex = p_sys->crossbar_routes[i].VideoOutputIndex;
 427         LONG AudioInputIndex = p_sys->crossbar_routes[i].AudioInputIndex;
 428         LONG AudioOutputIndex = p_sys->crossbar_routes[i].AudioOutputIndex;
 429
 430         if( SUCCEEDED(pXbar->Route(VideoOutputIndex, VideoInputIndex)) )
 431         {
 432             msg_Dbg( p_this, "Crossbar at depth %d, Routed video "
 433                      "ouput %ld to video input %ld", i, VideoOutputIndex,
 434                      VideoInputIndex );
 435
 436             if( AudioOutputIndex != -1 && AudioInputIndex != -1 )
 437             {
 438                 if( SUCCEEDED( pXbar->Route(AudioOutputIndex,
 439                                             AudioInputIndex)) )
 440                 {
 441                     msg_Dbg(p_this, "Crossbar at depth %d, Routed audio "
 442                             "ouput %ld to audio input %ld", i,
 443                             AudioOutputIndex, AudioInputIndex );
 444                 }
 445             }
 446         }
 447     }
 448
 449     /*
 450     ** Show properties pages from other filters in graph
 451     */
 452     var_Get( p_this, "dshow-config", &val );
 453     if( val.b_bool )
 454     {
 455         for( i = p_sys->i_crossbar_route_depth-1; i >= 0 ; --i )
 456         {
 457             IAMCrossbar *pXbar = p_sys->crossbar_routes[i].pXbar;
 458             IBaseFilter *p_XF;
 459
 460             if( SUCCEEDED( pXbar->QueryInterface( IID_IBaseFilter,
 461                                                   (void **)&p_XF ) ) )
 462             {
 463                 ShowPropertyPage( p_XF );
 464                 p_XF->Release();
 465             }
 466         }
 467     }
 468
 469     /* Initialize some data */
 470     p_sys->i_current_stream = 0;
 471
 472     if( !p_sys->i_streams ) return VLC_EGENERIC;
 473
 474     return VLC_SUCCESS;
 475 }
 476
 477 /*****************************************************************************
 478  * DemuxOpen: open direct show device as an access_demux module
 479  *****************************************************************************/
 480 static int DemuxOpen( vlc_object_t *p_this )
 481 {
 482     demux_t      *p_demux = (demux_t *)p_this;
 483     access_sys_t *p_sys;
 484     int i;
 485
 486     p_sys = (access_sys_t *)malloc( sizeof( access_sys_t ) );
 487     memset( p_sys, 0, sizeof( access_sys_t ) );
 488     p_demux->p_sys = (demux_sys_t *)p_sys;
 489
 490     if( CommonOpen( p_this, p_sys, VLC_TRUE ) != VLC_SUCCESS )
 491     {
 492         CommonClose( p_this, p_sys );
 493         return VLC_EGENERIC;
 494     }
 495
 496     /* Everything is ready. Let's rock baby */
 497     msg_Dbg( p_this, "Playing...");
 498     p_sys->p_control->Run();
 499
 500     p_demux->pf_demux   = Demux;
 501     p_demux->pf_control = DemuxControl;
 502     p_demux->info.i_update = 0;
 503     p_demux->info.i_title = 0;
 504     p_demux->info.i_seekpoint = 0;
 505
 506     for( i = 0; i < p_sys->i_streams; i++ )
 507     {
 508         dshow_stream_t *p_stream = p_sys->pp_streams[i];
 509         es_format_t fmt;
 510
 511         if( p_stream->mt.majortype == MEDIATYPE_Video )
 512         {
 513             es_format_Init( &fmt, VIDEO_ES, p_stream->i_fourcc );
 514
 515             fmt.video.i_width  = p_stream->header.video.bmiHeader.biWidth;
 516             fmt.video.i_height = p_stream->header.video.bmiHeader.biHeight;
 517             fmt.video.i_aspect = 4 * VOUT_ASPECT_FACTOR / 3;
 518
 519             if( !p_stream->header.video.bmiHeader.biCompression )
 520             {
 521                 /* RGB DIB are coded from bottom to top */
 522                 fmt.video.i_height = (unsigned int)(-(int)fmt.video.i_height);
 523             }
 524
 525             /* Setup rgb mask for RGB formats */
 526             if( p_stream->i_fourcc == VLC_FOURCC('R','V','2','4') )
 527             {
 528                 /* This is in BGR format */
 529                 fmt.video.i_bmask = 0x00ff0000;
 530                 fmt.video.i_gmask = 0x0000ff00;
 531                 fmt.video.i_rmask = 0x000000ff;
 532             }
 533             fmt.video.i_frame_rate = 10000000000ULL/p_stream->header.video.AvgTimePerFrame;
 534             fmt.video.i_frame_rate_base = 1000;
 535         }
 536         else if( p_stream->mt.majortype == MEDIATYPE_Audio )
 537         {
 538             es_format_Init( &fmt, AUDIO_ES, p_stream->i_fourcc );
 539
 540             fmt.audio.i_channels = p_stream->header.audio.nChannels;
 541             fmt.audio.i_rate = p_stream->header.audio.nSamplesPerSec;
 542             fmt.audio.i_bitspersample = p_stream->header.audio.wBitsPerSample;
 543             fmt.audio.i_blockalign = fmt.audio.i_channels *
 544                 fmt.audio.i_bitspersample / 8;
 545             fmt.i_bitrate = fmt.audio.i_channels * fmt.audio.i_rate *
 546                 fmt.audio.i_bitspersample;
 547         }
 548
 549         p_stream->p_es = es_out_Add( p_demux->out, &fmt );
 550     }
 551
 552     return VLC_SUCCESS;
 553 }
 554
 555 /*****************************************************************************
 556  * AccessOpen: open direct show device as an access module
 557  *****************************************************************************/
 558 static int AccessOpen( vlc_object_t *p_this )
 559 {
 560     access_t     *p_access = (access_t*)p_this;
 561     access_sys_t *p_sys;
 562
 563     p_access->p_sys = p_sys = (access_sys_t *)malloc( sizeof( access_sys_t ) );
 564     memset( p_sys, 0, sizeof( access_sys_t ) );
 565
 566     if( CommonOpen( p_this, p_sys, VLC_FALSE ) != VLC_SUCCESS )
 567     {
 568         CommonClose( p_this, p_sys );
 569         return VLC_EGENERIC;
 570     }
 571
 572     dshow_stream_t *p_stream = p_sys->pp_streams[0];
 573
 574     /* Check if we need to force demuxers */
 575     if( !p_access->psz_demux || !*p_access->psz_demux )
 576     {
 577         if( p_stream->i_fourcc == VLC_FOURCC('d','v','s','l') ||
 578             p_stream->i_fourcc == VLC_FOURCC('d','v','s','d') ||
 579             p_stream->i_fourcc == VLC_FOURCC('d','v','h','d') )
 580         {
 581             p_access->psz_demux = strdup( "rawdv" );
 582         }
 583         else if( p_stream->i_fourcc == VLC_FOURCC('m','p','2','v') )
 584         {
 585             p_access->psz_demux = "mpgv";
 586         }
 587     }
 588
 589     /* Setup Access */
 590     p_access->pf_read = NULL;
 591     p_access->pf_block = ReadCompressed;
 592     p_access->pf_control = AccessControl;
 593     p_access->pf_seek = NULL;
 594     p_access->info.i_update = 0;
 595     p_access->info.i_size = 0;
 596     p_access->info.i_pos = 0;
 597     p_access->info.b_eof = VLC_FALSE;
 598     p_access->info.i_title = 0;
 599     p_access->info.i_seekpoint = 0;
 600     p_access->p_sys = p_sys;
 601
 602     /* Everything is ready. Let's rock baby */
 603     msg_Dbg( p_this, "Playing...");
 604     p_sys->p_control->Run();
 605
 606     return VLC_SUCCESS;
 607 }
 608
 609 /*****************************************************************************
 610  * CommonClose: close device
 611  *****************************************************************************/
 612 static void CommonClose( vlc_object_t *p_this, access_sys_t *p_sys )
 613 {
 614     msg_Dbg( p_this, "Releasing DirectShow");
 615
 616     DeleteDirectShowGraph( p_sys );
 617
 618     /* Uninitialize OLE/COM */
 619     CoUninitialize();
 620
 621     for( int i = 0; i < p_sys->i_streams; i++ ) delete p_sys->pp_streams[i];
 622     if( p_sys->i_streams ) free( p_sys->pp_streams );
 623
 624     vlc_mutex_destroy( &p_sys->lock );
 625     vlc_cond_destroy( &p_sys->wait );
 626
 627     free( p_sys );
 628 }
 629
 630 /*****************************************************************************
 631  * AccessClose: close device
 632  *****************************************************************************/
 633 static void AccessClose( vlc_object_t *p_this )
 634 {
 635     access_t     *p_access = (access_t *)p_this;
 636     access_sys_t *p_sys    = p_access->p_sys;
 637
 638     /* Stop capturing stuff */
 639     p_sys->p_control->Stop();
 640
 641     CommonClose( p_this, p_sys );
 642 }
 643
 644 /*****************************************************************************
 645  * DemuxClose: close device
 646  *****************************************************************************/
 647 static void DemuxClose( vlc_object_t *p_this )
 648 {
 649     demux_t      *p_demux = (demux_t *)p_this;
 650     access_sys_t *p_sys   = (access_sys_t *)p_demux->p_sys;
 651
 652     /* Stop capturing stuff */
 653     p_sys->p_control->Stop();
 654
 655     CommonClose( p_this, p_sys );
 656 }
 657
 658 /****************************************************************************
 659  * ConnectFilters
 660  ****************************************************************************/
 661 static bool ConnectFilters( vlc_object_t *p_this, access_sys_t *p_sys,
 662                             IBaseFilter *p_filter,
 663                             CaptureFilter *p_capture_filter )
 664 {
 665     CapturePin *p_input_pin = p_capture_filter->CustomGetPin();
 666
 667     AM_MEDIA_TYPE mediaType = p_input_pin->CustomGetMediaType();
 668
 669     if( p_sys->p_capture_graph_builder2 )
 670     {
 671         if( FAILED(p_sys->p_capture_graph_builder2->
 672                 RenderStream( &PIN_CATEGORY_CAPTURE, &mediaType.majortype,
 673                               p_filter, 0, (IBaseFilter *)p_capture_filter )) )
 674         {
 675             return false;
 676         }
 677
 678         // Sort out all the possible video inputs
 679         // The class needs to be given the capture filters ANALOGVIDEO input pin
 680         IEnumPins *pins = 0;
 681         if( ( mediaType.majortype == MEDIATYPE_Video ||
 682               mediaType.majortype == MEDIATYPE_Stream ) &&
 683             SUCCEEDED(p_filter->EnumPins(&pins)) )
 684         {
 685             IPin        *pP = 0;
 686             ULONG        n;
 687             PIN_INFO     pinInfo;
 688             BOOL         Found = FALSE;
 689             IKsPropertySet *pKs=0;
 690             GUID guid;
 691             DWORD dw;
 692
 693             while( !Found && ( S_OK == pins->Next(1, &pP, &n) ) )
 694             {
 695                 if( S_OK == pP->QueryPinInfo(&pinInfo) )
 696                 {
 697                     // is this pin an ANALOGVIDEOIN input pin?
 698                     if( pinInfo.dir == PINDIR_INPUT &&
 699                         pP->QueryInterface( IID_IKsPropertySet,
 700                                             (void **)&pKs ) == S_OK )
 701                     {
 702                         if( pKs->Get( AMPROPSETID_Pin,
 703                                       AMPROPERTY_PIN_CATEGORY, NULL, 0,
 704                                       &guid, sizeof(GUID), &dw ) == S_OK )
 705                         {
 706                             if( guid == PIN_CATEGORY_ANALOGVIDEOIN )
 707                             {
 708                                 // recursively search crossbar routes
 709                                 FindCrossbarRoutes( p_this, p_sys, pP, 0 );
 710                                 // found it
 711                                 Found = TRUE;
 712                             }
 713                         }
 714                         pKs->Release();
 715                     }
 716                     pinInfo.pFilter->Release();
 717                 }
 718                 pP->Release();
 719             }
 720             pins->Release();
 721         }
 722         return true;
 723     }
 724     else
 725     {
 726         IEnumPins *p_enumpins;
 727         IPin *p_pin;
 728
 729         if( S_OK != p_filter->EnumPins( &p_enumpins ) ) return false;
 730
 731         while( S_OK == p_enumpins->Next( 1, &p_pin, NULL ) )
 732         {
 733             PIN_DIRECTION pin_dir;
 734             p_pin->QueryDirection( &pin_dir );
 735
 736             if( pin_dir == PINDIR_OUTPUT &&
 737                 p_sys->p_graph->ConnectDirect( p_pin, (IPin *)p_input_pin,
 738                                                0 ) == S_OK )
 739             {
 740                 p_pin->Release();
 741                 p_enumpins->Release();
 742                 return true;
 743             }
 744             p_pin->Release();
 745         }
 746
 747         p_enumpins->Release();
 748         return false;
 749     }
 750 }
 751
 752 /*
 753  * get fourcc priority from arbritary preference, the higher the better
 754  */
 755 static int GetFourCCPriority( int i_fourcc )
 756 {
 757     switch( i_fourcc )
 758     {
 759     case VLC_FOURCC('I','4','2','0'):
 760     case VLC_FOURCC('f','l','3','2'):
 761         return 9;
 762     case VLC_FOURCC('Y','V','1','2'):
 763     case VLC_FOURCC('a','r','a','w'):
 764         return 8;
 765     case VLC_FOURCC('R','V','2','4'):
 766         return 7;
 767     case VLC_FOURCC('Y','U','Y','2'):
 768     case VLC_FOURCC('R','V','3','2'):
 769     case VLC_FOURCC('R','G','B','A'):
 770         return 6;
 771     }
 772
 773     return 0;
 774 }
 775
 776 #define MAX_MEDIA_TYPES 32
 777
 778 static int OpenDevice( vlc_object_t *p_this, access_sys_t *p_sys,
 779                        string devicename, vlc_bool_t b_audio )
 780 {
 781     /* See if device is already opened */
 782     for( int i = 0; i < p_sys->i_streams; i++ )
 783     {
 784         if( devicename.size() &&
 785             p_sys->pp_streams[i]->devicename == devicename )
 786         {
 787             /* Already opened */
 788             return VLC_SUCCESS;
 789         }
 790     }
 791
 792     list<string> list_devices;
 793
 794     /* Enumerate devices and display their names */
 795     FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
 796
 797     if( !list_devices.size() )
 798         return VLC_EGENERIC;
 799
 800     list<string>::iterator iter;
 801     for( iter = list_devices.begin(); iter != list_devices.end(); iter++ )
 802         msg_Dbg( p_this, "found device: %s", iter->c_str() );
 803
 804     /* If no device name was specified, pick the 1st one */
 805     if( devicename.size() == 0 )
 806     {
 807         devicename = *list_devices.begin();
 808     }
 809
 810     // Use the system device enumerator and class enumerator to find
 811     // a capture/preview device, such as a desktop USB video camera.
 812     IBaseFilter *p_device_filter =
 813         FindCaptureDevice( p_this, &devicename, 0, b_audio );
 814     if( p_device_filter )
 815         msg_Dbg( p_this, "using device: %s", devicename.c_str() );
 816     else
 817     {
 818         msg_Err( p_this, "can't use device: %s, unsupported device type",
 819                  devicename.c_str() );
 820         return VLC_EGENERIC;
 821     }
 822
 823     // Retreive acceptable media types supported by device
 824     AM_MEDIA_TYPE media_types[MAX_MEDIA_TYPES];
 825     size_t media_count =
 826         EnumDeviceCaps( p_this, p_device_filter, p_sys->i_chroma,
 827                         p_sys->i_width, p_sys->i_height,
 828                         0, 0, 0, media_types, MAX_MEDIA_TYPES );
 829
 830     /* Find out if the pin handles MEDIATYPE_Stream, in which case we
 831      * won't add a prefered media type as this doesn't seem to work well
 832      * -- to investigate. */
 833     vlc_bool_t b_stream_type = VLC_FALSE;
 834     for( size_t i = 0; i < media_count; i++ )
 835     {
 836         if( media_types[i].majortype == MEDIATYPE_Stream )
 837         {
 838             b_stream_type = VLC_TRUE;
 839             break;
 840         }
 841     }
 842
 843     size_t mt_count = 0;
 844     AM_MEDIA_TYPE *mt = NULL;
 845
 846     if( !b_stream_type && !b_audio )
 847     {
 848         // Insert prefered video media type
 849         AM_MEDIA_TYPE mtr;
 850         VIDEOINFOHEADER vh;
 851
 852         mtr.majortype            = MEDIATYPE_Video;
 853         mtr.subtype              = MEDIASUBTYPE_I420;
 854         mtr.bFixedSizeSamples    = TRUE;
 855         mtr.bTemporalCompression = FALSE;
 856         mtr.pUnk                 = NULL;
 857         mtr.formattype           = FORMAT_VideoInfo;
 858         mtr.cbFormat             = sizeof(vh);
 859         mtr.pbFormat             = (BYTE *)&vh;
 860
 861         memset(&vh, 0, sizeof(vh));
 862
 863         vh.bmiHeader.biSize   = sizeof(vh.bmiHeader);
 864         vh.bmiHeader.biWidth  = p_sys->i_width > 0 ? p_sys->i_width : 320;
 865         vh.bmiHeader.biHeight = p_sys->i_height > 0 ? p_sys->i_height : 240;
 866         vh.bmiHeader.biPlanes      = 3;
 867         vh.bmiHeader.biBitCount    = 12;
 868         vh.bmiHeader.biCompression = VLC_FOURCC('I','4','2','0');
 869         vh.bmiHeader.biSizeImage   = vh.bmiHeader.biWidth * 12 *
 870             vh.bmiHeader.biHeight / 8;
 871         mtr.lSampleSize            = vh.bmiHeader.biSizeImage;
 872
 873         mt_count = 1;
 874         mt = (AM_MEDIA_TYPE *)malloc( sizeof(AM_MEDIA_TYPE)*mt_count );
 875         CopyMediaType(mt, &mtr);
 876     }
 877     else if( !b_stream_type )
 878     {
 879         // Insert prefered audio media type
 880         AM_MEDIA_TYPE mtr;
 881         WAVEFORMATEX wf;
 882
 883         mtr.majortype            = MEDIATYPE_Audio;
 884         mtr.subtype              = MEDIASUBTYPE_PCM;
 885         mtr.bFixedSizeSamples    = TRUE;
 886         mtr.bTemporalCompression = FALSE;
 887         mtr.lSampleSize          = 0;
 888         mtr.pUnk                 = NULL;
 889         mtr.formattype           = FORMAT_WaveFormatEx;
 890         mtr.cbFormat             = sizeof(wf);
 891         mtr.pbFormat             = (BYTE *)&wf;
 892
 893         memset(&wf, 0, sizeof(wf));
 894
 895         wf.wFormatTag = WAVE_FORMAT_PCM;
 896         wf.nChannels = 2;
 897         wf.nSamplesPerSec = 44100;
 898         wf.wBitsPerSample = 16;
 899         wf.nBlockAlign = wf.nSamplesPerSec * wf.wBitsPerSample / 8;
 900         wf.nAvgBytesPerSec = wf.nSamplesPerSec * wf.nBlockAlign;
 901         wf.cbSize = 0;
 902
 903         mt_count = 1;
 904         mt = (AM_MEDIA_TYPE *)malloc( sizeof(AM_MEDIA_TYPE)*mt_count );
 905         CopyMediaType(mt, &mtr);
 906     }
 907
 908     if( media_count > 0 )
 909     {
 910         mt = (AM_MEDIA_TYPE *)realloc( mt, sizeof(AM_MEDIA_TYPE) *
 911                                        (mt_count + media_count) );
 912
 913         // Order and copy returned media types according to arbitrary
 914         // fourcc priority
 915         for( size_t c = 0; c < media_count; c++ )
 916         {
 917             int slot_priority =
 918                 GetFourCCPriority(GetFourCCFromMediaType(media_types[c]));
 919             size_t slot_copy = c;
 920             for( size_t d = c+1; d < media_count; d++ )
 921             {
 922                 int priority =
 923                     GetFourCCPriority(GetFourCCFromMediaType(media_types[d]));
 924                 if( priority > slot_priority )
 925                 {
 926                     slot_priority = priority;
 927                     slot_copy = d;
 928                 }
 929             }
 930             if( slot_copy != c )
 931             {
 932                 mt[c+mt_count] = media_types[slot_copy];
 933                 media_types[slot_copy] = media_types[c];
 934             }
 935             else
 936             {
 937                 mt[c+mt_count] = media_types[c];
 938             }
 939         }
 940         mt_count += media_count;
 941     }
 942
 943     /* Create and add our capture filter */
 944     CaptureFilter *p_capture_filter =
 945         new CaptureFilter( p_this, p_sys, mt, mt_count );
 946     p_sys->p_graph->AddFilter( p_capture_filter, 0 );
 947
 948     /* Add the device filter to the graph (seems necessary with VfW before
 949      * accessing pin attributes). */
 950     p_sys->p_graph->AddFilter( p_device_filter, 0 );
 951
 952     /* Attempt to connect one of this device's capture output pins */
 953     msg_Dbg( p_this, "connecting filters" );
 954     if( ConnectFilters( p_this, p_sys, p_device_filter, p_capture_filter ) )
 955     {
 956         /* Success */
 957         msg_Dbg( p_this, "filters connected successfully !" );
 958
 959         dshow_stream_t dshow_stream;
 960         dshow_stream.b_pts = VLC_FALSE;
 961         dshow_stream.p_es = 0;
 962         dshow_stream.mt =
 963             p_capture_filter->CustomGetPin()->CustomGetMediaType();
 964
 965         /* Show Device properties. Done here so the VLC stream is setup with
 966          * the proper parameters. */
 967         vlc_value_t val;
 968         var_Get( p_this, "dshow-config", &val );
 969         if( val.b_bool )
 970         {
 971             ShowDeviceProperties( p_this, p_sys->p_capture_graph_builder2,
 972                                   p_device_filter, b_audio );
 973         }
 974
 975         ConfigTuner( p_this, p_sys->p_capture_graph_builder2,
 976                      p_device_filter );
 977
 978         var_Get( p_this, "dshow-tuner", &val );
 979         if( val.b_bool && dshow_stream.mt.majortype != MEDIATYPE_Stream )
 980         {
 981             /* FIXME: we do MEDIATYPE_Stream later so we don't do it twice. */
 982             ShowTunerProperties( p_this, p_sys->p_capture_graph_builder2,
 983                                  p_device_filter, b_audio );
 984         }
 985
 986         dshow_stream.mt =
 987             p_capture_filter->CustomGetPin()->CustomGetMediaType();
 988
 989         dshow_stream.i_fourcc = GetFourCCFromMediaType( dshow_stream.mt );
 990         if( dshow_stream.i_fourcc )
 991         {
 992             if( dshow_stream.mt.majortype == MEDIATYPE_Video )
 993             {
 994                 dshow_stream.header.video =
 995                     *(VIDEOINFOHEADER *)dshow_stream.mt.pbFormat;
 996                 msg_Dbg( p_this, "MEDIATYPE_Video" );
 997                 msg_Dbg( p_this, "selected video pin accepts format: %4.4s",
 998                          (char *)&dshow_stream.i_fourcc);
 999             }
1000             else if( dshow_stream.mt.majortype == MEDIATYPE_Audio )
1001             {
1002                 dshow_stream.header.audio =
1003                     *(WAVEFORMATEX *)dshow_stream.mt.pbFormat;
1004                 msg_Dbg( p_this, "MEDIATYPE_Audio" );
1005                 msg_Dbg( p_this, "selected audio pin accepts format: %4.4s",
1006                          (char *)&dshow_stream.i_fourcc);
1007             }
1008             else if( dshow_stream.mt.majortype == MEDIATYPE_Stream )
1009             {
1010                 msg_Dbg( p_this, "MEDIATYPE_Stream" );
1011                 msg_Dbg( p_this, "selected stream pin accepts format: %4.4s",
1012                          (char *)&dshow_stream.i_fourcc);
1013             }
1014             else
1015             {
1016                 msg_Dbg( p_this, "unknown stream majortype" );
1017                 goto fail;
1018             }
1019
1020             /* Add directshow elementary stream to our list */
1021             dshow_stream.p_device_filter = p_device_filter;
1022             dshow_stream.p_capture_filter = p_capture_filter;
1023
1024             p_sys->pp_streams = (dshow_stream_t **)realloc( p_sys->pp_streams,
1025                 sizeof(dshow_stream_t *) * (p_sys->i_streams + 1) );
1026             p_sys->pp_streams[p_sys->i_streams] = new dshow_stream_t;
1027             *p_sys->pp_streams[p_sys->i_streams++] = dshow_stream;
1028
1029             return VLC_SUCCESS;
1030         }
1031     }
1032
1033  fail:
1034     /* Remove filters from graph */
1035     p_sys->p_graph->RemoveFilter( p_device_filter );
1036     p_sys->p_graph->RemoveFilter( p_capture_filter );
1037
1038     /* Release objects */
1039     p_device_filter->Release();
1040     p_capture_filter->Release();
1041
1042     return VLC_EGENERIC;
1043 }
1044
1045 static IBaseFilter *
1046 FindCaptureDevice( vlc_object_t *p_this, string *p_devicename,
1047                    list<string> *p_listdevices, vlc_bool_t b_audio )
1048 {
1049     IBaseFilter *p_base_filter = NULL;
1050     IMoniker *p_moniker = NULL;
1051     ULONG i_fetched;
1052     HRESULT hr;
1053
1054     /* Create the system device enumerator */
1055     ICreateDevEnum *p_dev_enum = NULL;
1056
1057     hr = CoCreateInstance( CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC,
1058                            IID_ICreateDevEnum, (void **)&p_dev_enum );
1059     if( FAILED(hr) )
1060     {
1061         msg_Err( p_this, "failed to create the device enumerator (0x%lx)", hr);
1062         return NULL;
1063     }
1064
1065     /* Create an enumerator for the video capture devices */
1066     IEnumMoniker *p_class_enum = NULL;
1067     if( !b_audio )
1068         hr = p_dev_enum->CreateClassEnumerator( CLSID_VideoInputDeviceCategory,
1069                                                 &p_class_enum, 0 );
1070     else
1071         hr = p_dev_enum->CreateClassEnumerator( CLSID_AudioInputDeviceCategory,
1072                                                 &p_class_enum, 0 );
1073     p_dev_enum->Release();
1074     if( FAILED(hr) )
1075     {
1076         msg_Err( p_this, "failed to create the class enumerator (0x%lx)", hr );
1077         return NULL;
1078     }
1079
1080     /* If there are no enumerators for the requested type, then
1081      * CreateClassEnumerator will succeed, but p_class_enum will be NULL */
1082     if( p_class_enum == NULL )
1083     {
1084         msg_Err( p_this, "no capture device was detected" );
1085         return NULL;
1086     }
1087
1088     /* Enumerate the devices */
1089
1090     /* Note that if the Next() call succeeds but there are no monikers,
1091      * it will return S_FALSE (which is not a failure). Therefore, we check
1092      * that the return code is S_OK instead of using SUCCEEDED() macro. */
1093
1094     while( p_class_enum->Next( 1, &p_moniker, &i_fetched ) == S_OK )
1095     {
1096         /* Getting the property page to get the device name */
1097         IPropertyBag *p_bag;
1098         hr = p_moniker->BindToStorage( 0, 0, IID_IPropertyBag,
1099                                        (void **)&p_bag );
1100         if( SUCCEEDED(hr) )
1101         {
1102             VARIANT var;
1103             var.vt = VT_BSTR;
1104             hr = p_bag->Read( L"FriendlyName", &var, NULL );
1105             p_bag->Release();
1106             if( SUCCEEDED(hr) )
1107             {
1108                 int i_convert = WideCharToMultiByte(CP_ACP, 0, var.bstrVal,
1109                         SysStringLen(var.bstrVal), NULL, 0, NULL, NULL);
1110                 char *p_buf = (char *)alloca( i_convert ); p_buf[0] = 0;
1111                 WideCharToMultiByte( CP_ACP, 0, var.bstrVal,
1112                         SysStringLen(var.bstrVal), p_buf, i_convert, NULL, NULL );
1113                 SysFreeString(var.bstrVal);
1114
1115                 if( p_listdevices ) p_listdevices->push_back( p_buf );
1116
1117                 if( p_devicename && *p_devicename == string(p_buf) )
1118                 {
1119                     /* Bind Moniker to a filter object */
1120                     hr = p_moniker->BindToObject( 0, 0, IID_IBaseFilter,
1121                                                   (void **)&p_base_filter );
1122                     if( FAILED(hr) )
1123                     {
1124                         msg_Err( p_this, "couldn't bind moniker to filter "
1125                                  "object (0x%lx)", hr );
1126                         p_moniker->Release();
1127                         p_class_enum->Release();
1128                         return NULL;
1129                     }
1130                     p_moniker->Release();
1131                     p_class_enum->Release();
1132                     return p_base_filter;
1133                 }
1134             }
1135         }
1136
1137         p_moniker->Release();
1138     }
1139
1140     p_class_enum->Release();
1141     return NULL;
1142 }
1143
1144 static size_t EnumDeviceCaps( vlc_object_t *p_this, IBaseFilter *p_filter,
1145                               int i_fourcc, int i_width, int i_height,
1146                               int i_channels, int i_samplespersec,
1147                               int i_bitspersample, AM_MEDIA_TYPE *mt,
1148                               size_t mt_max )
1149 {
1150     IEnumPins *p_enumpins;
1151     IPin *p_output_pin;
1152     IEnumMediaTypes *p_enummt;
1153     size_t mt_count = 0;
1154
1155     LONGLONG i_AvgTimePerFrame = 0;
1156     float r_fps = var_GetFloat( p_this, "dshow-fps" );
1157     if( r_fps )
1158         i_AvgTimePerFrame = 10000000000LL/(LONGLONG)(r_fps*1000.0f);
1159
1160     if( FAILED(p_filter->EnumPins( &p_enumpins )) )
1161     {
1162         msg_Dbg( p_this, "EnumDeviceCaps failed: no pin enumeration !");
1163         return 0;
1164     }
1165
1166     while( S_OK == p_enumpins->Next( 1, &p_output_pin, NULL ) )
1167     {
1168         PIN_INFO info;
1169
1170         if( S_OK == p_output_pin->QueryPinInfo( &info ) )
1171         {
1172             msg_Dbg( p_this, "EnumDeviceCaps: %s pin: %S",
1173                      info.dir == PINDIR_INPUT ? "input" : "output",
1174                      info.achName );
1175             if( info.pFilter ) info.pFilter->Release();
1176         }
1177
1178         p_output_pin->Release();
1179     }
1180
1181     p_enumpins->Reset();
1182
1183     while( !mt_count && p_enumpins->Next( 1, &p_output_pin, NULL ) == S_OK )
1184     {
1185         PIN_INFO info;
1186
1187         if( S_OK == p_output_pin->QueryPinInfo( &info ) )
1188         {
1189             if( info.pFilter ) info.pFilter->Release();
1190             if( info.dir == PINDIR_INPUT )
1191             {
1192                 p_output_pin->Release();
1193                 continue;
1194             }
1195             msg_Dbg( p_this, "EnumDeviceCaps: trying pin %S", info.achName );
1196         }
1197
1198         AM_MEDIA_TYPE *p_mt;
1199
1200         /*
1201         ** Configure pin with a default compatible media if possible
1202         */
1203
1204         IAMStreamConfig *pSC;
1205         if( SUCCEEDED(p_output_pin->QueryInterface( IID_IAMStreamConfig,
1206                                             (void **)&pSC )) )
1207         {
1208             int piCount, piSize;
1209             if( SUCCEEDED(pSC->GetNumberOfCapabilities(&piCount, &piSize)) )
1210             {
1211                 BYTE *pSCC= (BYTE *)CoTaskMemAlloc(piSize);
1212                 if( NULL != pSCC )
1213                 {
1214                     for( int i=0; i<piCount; ++i )
1215                     {
1216                         if( SUCCEEDED(pSC->GetStreamCaps(i, &p_mt, pSCC)) )
1217                         {
1218                             int i_current_fourcc = GetFourCCFromMediaType( *p_mt );
1219
1220                             if( !i_current_fourcc || (i_fourcc && (i_current_fourcc != i_fourcc)) )
1221                             {
1222                                 // incompatible or unrecognized chroma, try next media type
1223                                 FreeMediaType( *p_mt );
1224                                 CoTaskMemFree( (PVOID)p_mt );
1225                                 continue;
1226                             }
1227
1228                             if( MEDIATYPE_Video == p_mt->majortype
1229                                     && FORMAT_VideoInfo == p_mt->formattype )
1230                             {
1231                                 VIDEO_STREAM_CONFIG_CAPS *pVSCC = reinterpret_cast<VIDEO_STREAM_CONFIG_CAPS*>(pSCC);
1232                                 VIDEOINFOHEADER *pVih = reinterpret_cast<VIDEOINFOHEADER*>(p_mt->pbFormat);
1233
1234                                 if( i_AvgTimePerFrame )
1235                                 {
1236                                     if( pVSCC->MinFrameInterval > i_AvgTimePerFrame
1237                                       || i_AvgTimePerFrame > pVSCC->MaxFrameInterval )
1238                                     {
1239                                         // required frame rate not compatible, try next media type
1240                                         FreeMediaType( *p_mt );
1241                                         CoTaskMemFree( (PVOID)p_mt );
1242                                         continue;
1243                                     }
1244                                     pVih->AvgTimePerFrame = i_AvgTimePerFrame;
1245                                 }
1246
1247                                 if( i_width )
1248                                 {
1249                                     if( i_width % pVSCC->OutputGranularityX
1250                                      || pVSCC->MinOutputSize.cx > i_width
1251                                      || i_width > pVSCC->MaxOutputSize.cx )
1252                                     {
1253                                         // required width not compatible, try next media type
1254                                         FreeMediaType( *p_mt );
1255                                         CoTaskMemFree( (PVOID)p_mt );
1256                                         continue;
1257                                     }
1258                                     pVih->bmiHeader.biWidth = i_width;
1259                                 }
1260
1261                                 if( i_height )
1262                                 {
1263                                     if( i_height % pVSCC->OutputGranularityY
1264                                      || pVSCC->MinOutputSize.cy > i_height
1265                                      || i_height > pVSCC->MaxOutputSize.cy )
1266                                     {
1267                                         // required height not compatible, try next media type
1268                                         FreeMediaType( *p_mt );
1269                                         CoTaskMemFree( (PVOID)p_mt );
1270                                         continue;
1271                                     }
1272                                     pVih->bmiHeader.biHeight = i_height;
1273                                 }
1274
1275                                 // Set the sample size and image size.
1276                                 // (Round the image width up to a DWORD boundary.)
1277                                 p_mt->lSampleSize = pVih->bmiHeader.biSizeImage =
1278                                     ((pVih->bmiHeader.biWidth + 3) & ~3) *
1279                                     pVih->bmiHeader.biHeight * (pVih->bmiHeader.biBitCount>>3);
1280
1281                                 // no cropping, use full video input buffer
1282                                 memset(&(pVih->rcSource), 0, sizeof(RECT));
1283                                 memset(&(pVih->rcTarget), 0, sizeof(RECT));
1284
1285                                 // select this format as default
1286                                 if( SUCCEEDED( pSC->SetFormat(p_mt) ) )
1287                                 {
1288                                     msg_Dbg( p_this, "EnumDeviceCaps: input pin video format configured");
1289                                     // no need to check any more media types
1290                                     i = piCount;
1291                                 }
1292                                 else FreeMediaType( *p_mt );
1293                             }
1294                             else if( p_mt->majortype == MEDIATYPE_Audio
1295                                     && p_mt->formattype == FORMAT_WaveFormatEx )
1296                             {
1297                                 AUDIO_STREAM_CONFIG_CAPS *pASCC = reinterpret_cast<AUDIO_STREAM_CONFIG_CAPS*>(pSCC);
1298                                 WAVEFORMATEX *pWfx = reinterpret_cast<WAVEFORMATEX*>(p_mt->pbFormat);
1299
1300                                 if( i_channels )
1301                                 {
1302                                     if( i_channels % pASCC->ChannelsGranularity
1303                                      || (unsigned int)i_channels < pASCC->MinimumChannels
1304                                      || (unsigned int)i_channels > pASCC->MaximumChannels )
1305                                     {
1306                                         // required channels not compatible, try next media type
1307                                         FreeMediaType( *p_mt );
1308                                         CoTaskMemFree( (PVOID)p_mt );
1309                                         continue;
1310                                     }
1311                                     pWfx->nChannels = i_channels;
1312                                 }
1313
1314                                 if( i_samplespersec )
1315                                 {
1316                                     if( i_samplespersec % pASCC->BitsPerSampleGranularity
1317                                      || (unsigned int)i_samplespersec < pASCC->MinimumSampleFrequency
1318                                      || (unsigned int)i_samplespersec > pASCC->MaximumSampleFrequency )
1319                                     {
1320                                         // required sampling rate not compatible, try next media type
1321                                         FreeMediaType( *p_mt );
1322                                         CoTaskMemFree( (PVOID)p_mt );
1323                                         continue;
1324                                     }
1325                                     pWfx->nSamplesPerSec = i_samplespersec;
1326                                 }
1327
1328                                 if( i_bitspersample )
1329                                 {
1330                                     if( i_bitspersample % pASCC->BitsPerSampleGranularity
1331                                      || (unsigned int)i_bitspersample < pASCC->MinimumBitsPerSample
1332                                      || (unsigned int)i_bitspersample > pASCC->MaximumBitsPerSample )
1333                                     {
1334                                         // required sample size not compatible, try next media type
1335                                         FreeMediaType( *p_mt );
1336                                         CoTaskMemFree( (PVOID)p_mt );
1337                                         continue;
1338                                     }
1339                                     pWfx->wBitsPerSample = i_bitspersample;
1340                                 }
1341
1342                                 // select this format as default
1343                                 if( SUCCEEDED( pSC->SetFormat(p_mt) ) )
1344                                 {
1345                                     msg_Dbg( p_this, "EnumDeviceCaps: input pin default format configured");
1346                                     // no need to check any more media types
1347                                     i = piCount;
1348                                 }
1349                             }
1350                             FreeMediaType( *p_mt );
1351                             CoTaskMemFree( (PVOID)p_mt );
1352                         }
1353                     }
1354                     CoTaskMemFree( (LPVOID)pSCC );
1355                 }
1356             }
1357             pSC->Release();
1358         }
1359
1360         /*
1361         ** Probe pin for available medias (may be a previously configured one)
1362         */
1363
1364         if( FAILED( p_output_pin->EnumMediaTypes( &p_enummt ) ) )
1365         {
1366             p_output_pin->Release();
1367             continue;
1368         }
1369
1370
1371         while( p_enummt->Next( 1, &p_mt, NULL ) == S_OK )
1372         {
1373             int i_current_fourcc = GetFourCCFromMediaType( *p_mt );
1374             if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Video
1375                 && p_mt->formattype == FORMAT_VideoInfo )
1376             {
1377                 int i_current_width = ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biWidth;
1378                 int i_current_height = ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biHeight;
1379                 LONGLONG i_current_atpf = ((VIDEOINFOHEADER *)p_mt->pbFormat)->AvgTimePerFrame;
1380
1381                 if( i_current_height < 0 )
1382                     i_current_height = -i_current_height;
1383
1384                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
1385                          "accepts chroma: %4.4s, width:%i, height:%i, fps:%f",
1386                          (char *)&i_current_fourcc, i_current_width,
1387                          i_current_height, (10000000.0f/((float)i_current_atpf)) );
1388
1389                 if( ( !i_fourcc || i_fourcc == i_current_fourcc ) &&
1390                     ( !i_width || i_width == i_current_width ) &&
1391                     ( !i_height || i_height == i_current_height ) &&
1392                     ( !i_AvgTimePerFrame || i_AvgTimePerFrame == i_current_atpf ) &&
1393                     mt_count < mt_max )
1394                 {
1395                     /* Pick match */
1396                     mt[mt_count++] = *p_mt;
1397                 }
1398                 else FreeMediaType( *p_mt );
1399             }
1400             else if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Audio
1401                     && p_mt->formattype == FORMAT_WaveFormatEx)
1402             {
1403                 int i_current_channels =
1404                     ((WAVEFORMATEX *)p_mt->pbFormat)->nChannels;
1405                 int i_current_samplespersec =
1406                     ((WAVEFORMATEX *)p_mt->pbFormat)->nSamplesPerSec;
1407                 int i_current_bitspersample =
1408                     ((WAVEFORMATEX *)p_mt->pbFormat)->wBitsPerSample;
1409
1410                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
1411                          "accepts format: %4.4s, channels:%i, "
1412                          "samples/sec:%i bits/sample:%i",
1413                          (char *)&i_current_fourcc, i_current_channels,
1414                          i_current_samplespersec, i_current_bitspersample);
1415
1416                 if( (!i_channels || i_channels == i_current_channels) &&
1417                     (!i_samplespersec ||
1418                      i_samplespersec == i_current_samplespersec) &&
1419                     (!i_bitspersample ||
1420                      i_bitspersample == i_current_bitspersample) &&
1421                     mt_count < mt_max )
1422                 {
1423                     /* Pick  match */
1424                     mt[mt_count++] = *p_mt;
1425
1426                     /* Setup a few properties like the audio latency */
1427                     IAMBufferNegotiation *p_ambuf;
1428                     if( SUCCEEDED( p_output_pin->QueryInterface(
1429                           IID_IAMBufferNegotiation, (void **)&p_ambuf ) ) )
1430                     {
1431                         ALLOCATOR_PROPERTIES AllocProp;
1432                         AllocProp.cbAlign = -1;
1433
1434                         /* 100 ms of latency */
1435                         AllocProp.cbBuffer = i_current_channels *
1436                           i_current_samplespersec *
1437                           i_current_bitspersample / 8 / 10;
1438
1439                         AllocProp.cbPrefix = -1;
1440                         AllocProp.cBuffers = -1;
1441                         p_ambuf->SuggestAllocatorProperties( &AllocProp );
1442                         p_ambuf->Release();
1443                     }
1444                 }
1445                 else FreeMediaType( *p_mt );
1446             }
1447             else if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Stream )
1448             {
1449                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
1450                          "accepts stream format: %4.4s",
1451                          (char *)&i_current_fourcc );
1452
1453                 if( ( !i_fourcc || i_fourcc == i_current_fourcc ) &&
1454                     mt_count < mt_max )
1455                 {
1456                     /* Pick match */
1457                     mt[mt_count++] = *p_mt;
1458                     i_fourcc = i_current_fourcc;
1459                 }
1460                 else FreeMediaType( *p_mt );
1461             }
1462             else
1463             {
1464                 char *psz_type = "unknown";
1465                 if( p_mt->majortype == MEDIATYPE_Video ) psz_type = "video";
1466                 if( p_mt->majortype == MEDIATYPE_Audio ) psz_type = "audio";
1467                 if( p_mt->majortype == MEDIATYPE_Stream ) psz_type = "stream";
1468                 msg_Dbg( p_this, "EnumDeviceCaps: input pin media: unknown format "
1469                          "(%s %4.4s)", psz_type, (char *)&p_mt->subtype );
1470                 FreeMediaType( *p_mt );
1471             }
1472             CoTaskMemFree( (PVOID)p_mt );
1473         }
1474
1475         p_enummt->Release();
1476         p_output_pin->Release();
1477     }
1478
1479     p_enumpins->Release();
1480     return mt_count;
1481 }
1482
1483 /*****************************************************************************
1484  * ReadCompressed: reads compressed (MPEG/DV) data from the device.
1485  *****************************************************************************
1486  * Returns -1 in case of error, 0 in case of EOF, otherwise the number of
1487  * bytes.
1488  *****************************************************************************/
1489 static block_t *ReadCompressed( access_t *p_access )
1490 {
1491     access_sys_t   *p_sys = p_access->p_sys;
1492     dshow_stream_t *p_stream = NULL;
1493     VLCMediaSample sample;
1494
1495     /* Read 1 DV/MPEG frame (they contain the video and audio data) */
1496
1497     /* There must be only 1 elementary stream to produce a valid stream
1498      * of MPEG or DV data */
1499     p_stream = p_sys->pp_streams[0];
1500
1501     while( 1 )
1502     {
1503         if( p_access->b_die || p_access->b_error ) return 0;
1504
1505         /* Get new sample/frame from the elementary stream (blocking). */
1506         vlc_mutex_lock( &p_sys->lock );
1507
1508         if( p_stream->p_capture_filter->CustomGetPin()
1509               ->CustomGetSample( &sample ) != S_OK )
1510         {
1511             /* No data available. Wait until some data has arrived */
1512             vlc_cond_wait( &p_sys->wait, &p_sys->lock );
1513             vlc_mutex_unlock( &p_sys->lock );
1514             continue;
1515         }
1516
1517         vlc_mutex_unlock( &p_sys->lock );
1518
1519         /*
1520          * We got our sample
1521          */
1522         block_t *p_block;
1523         uint8_t *p_data;
1524         int i_data_size = sample.p_sample->GetActualDataLength();
1525
1526         if( !i_data_size || !(p_block = block_New( p_access, i_data_size )) )
1527         {
1528             sample.p_sample->Release();
1529             continue;
1530         }
1531
1532         sample.p_sample->GetPointer( &p_data );
1533         p_access->p_vlc->pf_memcpy( p_block->p_buffer, p_data, i_data_size );
1534         sample.p_sample->Release();
1535
1536         /* The caller got what he wanted */
1537         return p_block;
1538     }
1539
1540     return 0; /* never reached */
1541 }
1542
1543 /****************************************************************************
1544  * Demux:
1545  ****************************************************************************/
1546 static int Demux( demux_t *p_demux )
1547 {
1548     access_sys_t *p_sys = (access_sys_t *)p_demux->p_sys;
1549     dshow_stream_t *p_stream = NULL;
1550     VLCMediaSample sample;
1551     int i_data_size, i_stream;
1552     uint8_t *p_data;
1553     block_t *p_block;
1554
1555     vlc_mutex_lock( &p_sys->lock );
1556
1557     /* Try to grab an audio sample (audio has a higher priority) */
1558     for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
1559     {
1560         p_stream = p_sys->pp_streams[i_stream];
1561         if( p_stream->mt.majortype == MEDIATYPE_Audio &&
1562             p_stream->p_capture_filter &&
1563             p_stream->p_capture_filter->CustomGetPin()
1564               ->CustomGetSample( &sample ) == S_OK )
1565         {
1566             break;
1567         }
1568     }
1569     /* Try to grab a video sample */
1570     if( i_stream == p_sys->i_streams )
1571     {
1572         for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
1573         {
1574             p_stream = p_sys->pp_streams[i_stream];
1575             if( p_stream->p_capture_filter &&
1576                 p_stream->p_capture_filter->CustomGetPin()
1577                     ->CustomGetSample( &sample ) == S_OK )
1578             {
1579                 break;
1580             }
1581         }
1582     }
1583
1584     vlc_mutex_unlock( &p_sys->lock );
1585
1586     if( i_stream == p_sys->i_streams )
1587     {
1588         /* Sleep so we do not consume all the cpu, 10ms seems
1589          * like a good value (100fps) */
1590         msleep( 10000 );
1591         return 1;
1592     }
1593
1594     /*
1595      * We got our sample
1596      */
1597     i_data_size = sample.p_sample->GetActualDataLength();
1598     sample.p_sample->GetPointer( &p_data );
1599
1600     REFERENCE_TIME i_pts, i_end_date;
1601     HRESULT hr = sample.p_sample->GetTime( &i_pts, &i_end_date );
1602     if( hr != VFW_S_NO_STOP_TIME && hr != S_OK ) i_pts = 0;
1603
1604     if( !i_pts )
1605     {
1606         if( p_stream->mt.majortype == MEDIATYPE_Video || !p_stream->b_pts )
1607         {
1608             /* Use our data timestamp */
1609             i_pts = sample.i_timestamp;
1610             p_stream->b_pts = VLC_TRUE;
1611         }
1612     }
1613
1614     i_pts /= 10; /* Dshow works with 100 nano-seconds resolution */
1615
1616 #if 0
1617     msg_Dbg( p_demux, "Read() stream: %i, size: %i, PTS: "I64Fd,
1618              i_stream, i_data_size, i_pts );
1619 #endif
1620
1621     p_block = block_New( p_demux, i_data_size );
1622     p_demux->p_vlc->pf_memcpy( p_block->p_buffer, p_data, i_data_size );
1623     p_block->i_pts = p_block->i_dts = i_pts;
1624     sample.p_sample->Release();
1625
1626     es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_pts > 0 ? i_pts : 0 );
1627     es_out_Send( p_demux->out, p_stream->p_es, p_block );
1628
1629     return 1;
1630 }
1631
1632 /*****************************************************************************
1633  * AccessControl:
1634  *****************************************************************************/
1635 static int AccessControl( access_t *p_access, int i_query, va_list args )
1636 {
1637     vlc_bool_t   *pb_bool;
1638     int          *pi_int;
1639     int64_t      *pi_64;
1640
1641     switch( i_query )
1642     {
1643     /* */
1644     case ACCESS_CAN_SEEK:
1645     case ACCESS_CAN_FASTSEEK:
1646     case ACCESS_CAN_PAUSE:
1647     case ACCESS_CAN_CONTROL_PACE:
1648         pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
1649         *pb_bool = VLC_FALSE;
1650         break;
1651
1652     /* */
1653     case ACCESS_GET_MTU:
1654         pi_int = (int*)va_arg( args, int * );
1655         *pi_int = 0;
1656         break;
1657
1658     case ACCESS_GET_PTS_DELAY:
1659         pi_64 = (int64_t*)va_arg( args, int64_t * );
1660         *pi_64 = (int64_t)var_GetInteger( p_access, "dshow-caching" ) * 1000;
1661         break;
1662
1663     /* */
1664     case ACCESS_SET_PAUSE_STATE:
1665     case ACCESS_GET_TITLE_INFO:
1666     case ACCESS_SET_TITLE:
1667     case ACCESS_SET_SEEKPOINT:
1668     case ACCESS_SET_PRIVATE_ID_STATE:
1669         return VLC_EGENERIC;
1670
1671     default:
1672         msg_Warn( p_access, "unimplemented query in control" );
1673         return VLC_EGENERIC;
1674     }
1675
1676     return VLC_SUCCESS;
1677 }
1678
1679 /****************************************************************************
1680  * DemuxControl:
1681  ****************************************************************************/
1682 static int DemuxControl( demux_t *p_demux, int i_query, va_list args )
1683 {
1684     vlc_bool_t *pb;
1685     int64_t    *pi64;
1686
1687     switch( i_query )
1688     {
1689     /* Special for access_demux */
1690     case DEMUX_CAN_PAUSE:
1691     case DEMUX_SET_PAUSE_STATE:
1692     case DEMUX_CAN_CONTROL_PACE:
1693         pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
1694         *pb = VLC_FALSE;
1695         return VLC_SUCCESS;
1696
1697     case DEMUX_GET_PTS_DELAY:
1698         pi64 = (int64_t*)va_arg( args, int64_t * );
1699         *pi64 = (int64_t)var_GetInteger( p_demux, "dshow-caching" ) * 1000;
1700         return VLC_SUCCESS;
1701
1702     case DEMUX_GET_TIME:
1703         pi64 = (int64_t*)va_arg( args, int64_t * );
1704         *pi64 = mdate();
1705         return VLC_SUCCESS;
1706
1707     /* TODO implement others */
1708     default:
1709         return VLC_EGENERIC;
1710     }
1711
1712     return VLC_EGENERIC;
1713 }
1714
1715 /*****************************************************************************
1716  * config variable callback
1717  *****************************************************************************/
1718 static int FindDevicesCallback( vlc_object_t *p_this, char const *psz_name,
1719                                vlc_value_t newval, vlc_value_t oldval, void * )
1720 {
1721     module_config_t *p_item;
1722     vlc_bool_t b_audio = VLC_FALSE;
1723     int i;
1724
1725     p_item = config_FindConfig( p_this, psz_name );
1726     if( !p_item ) return VLC_SUCCESS;
1727
1728     if( !strcmp( psz_name, "dshow-adev" ) ) b_audio = VLC_TRUE;
1729
1730     /* Clear-up the current list */
1731     if( p_item->i_list )
1732     {
1733         /* Keep the 2 first entries */
1734         for( i = 2; i < p_item->i_list; i++ )
1735         {
1736             free( p_item->ppsz_list[i] );
1737             free( p_item->ppsz_list_text[i] );
1738         }
1739         /* TODO: Remove when no more needed */
1740         p_item->ppsz_list[i] = NULL;
1741         p_item->ppsz_list_text[i] = NULL;
1742     }
1743     p_item->i_list = 2;
1744
1745     /* Find list of devices */
1746     list<string> list_devices;
1747
1748     /* Initialize OLE/COM */
1749     CoInitialize( 0 );
1750
1751     FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
1752
1753     /* Uninitialize OLE/COM */
1754     CoUninitialize();
1755
1756     if( !list_devices.size() ) return VLC_SUCCESS;
1757
1758     p_item->ppsz_list =
1759         (char **)realloc( p_item->ppsz_list,
1760                           (list_devices.size()+3) * sizeof(char *) );
1761     p_item->ppsz_list_text =
1762         (char **)realloc( p_item->ppsz_list_text,
1763                           (list_devices.size()+3) * sizeof(char *) );
1764
1765     list<string>::iterator iter;
1766     for( iter = list_devices.begin(), i = 2; iter != list_devices.end();
1767          iter++, i++ )
1768     {
1769         p_item->ppsz_list[i] = strdup( iter->c_str() );
1770         p_item->ppsz_list_text[i] = NULL;
1771         p_item->i_list++;
1772     }
1773     p_item->ppsz_list[i] = NULL;
1774     p_item->ppsz_list_text[i] = NULL;
1775
1776     /* Signal change to the interface */
1777     p_item->b_dirty = VLC_TRUE;
1778
1779     return VLC_SUCCESS;
1780 }
1781
1782 static int ConfigDevicesCallback( vlc_object_t *p_this, char const *psz_name,
1783                                vlc_value_t newval, vlc_value_t oldval, void * )
1784 {
1785     module_config_t *p_item;
1786     vlc_bool_t b_audio = VLC_FALSE;
1787
1788     /* Initialize OLE/COM */
1789     CoInitialize( 0 );
1790
1791     p_item = config_FindConfig( p_this, psz_name );
1792     if( !p_item ) return VLC_SUCCESS;
1793
1794     if( !strcmp( psz_name, "dshow-adev" ) ) b_audio = VLC_TRUE;
1795
1796     string devicename;
1797
1798     if( newval.psz_string && *newval.psz_string )
1799     {
1800         devicename = newval.psz_string;
1801     }
1802     else
1803     {
1804         /* If no device name was specified, pick the 1st one */
1805         list<string> list_devices;
1806
1807         /* Enumerate devices */
1808         FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
1809         if( !list_devices.size() ) return VLC_EGENERIC;
1810         devicename = *list_devices.begin();
1811     }
1812
1813     IBaseFilter *p_device_filter =
1814         FindCaptureDevice( p_this, &devicename, NULL, b_audio );
1815     if( p_device_filter )
1816     {
1817         ShowPropertyPage( p_device_filter );
1818     }
1819     else
1820     {
1821         /* Uninitialize OLE/COM */
1822         CoUninitialize();
1823
1824         msg_Err( p_this, "didn't find device: %s", devicename.c_str() );
1825         return VLC_EGENERIC;
1826     }
1827
1828     /* Uninitialize OLE/COM */
1829     CoUninitialize();
1830
1831     return VLC_SUCCESS;
1832 }
1833
1834 /*****************************************************************************
1835  * Properties
1836  *****************************************************************************/
1837 static void ShowPropertyPage( IUnknown *obj )
1838 {
1839     ISpecifyPropertyPages *p_spec;
1840     CAUUID cauuid;
1841
1842     HRESULT hr = obj->QueryInterface( IID_ISpecifyPropertyPages,
1843                                       (void **)&p_spec );
1844     if( FAILED(hr) ) return;
1845
1846     if( SUCCEEDED(p_spec->GetPages( &cauuid )) )
1847     {
1848         if( cauuid.cElems > 0 )
1849         {
1850             HWND hwnd_desktop = ::GetDesktopWindow();
1851
1852             OleCreatePropertyFrame( hwnd_desktop, 30, 30, NULL, 1, &obj,
1853                                     cauuid.cElems, cauuid.pElems, 0, 0, NULL );
1854
1855             CoTaskMemFree( cauuid.pElems );
1856         }
1857         p_spec->Release();
1858     }
1859 }
1860
1861 static void ShowDeviceProperties( vlc_object_t *p_this,
1862                                   ICaptureGraphBuilder2 *p_graph,
1863                                   IBaseFilter *p_device_filter,
1864                                   vlc_bool_t b_audio )
1865 {
1866     HRESULT hr;
1867     msg_Dbg( p_this, "Configuring Device Properties" );
1868
1869     /*
1870      * Video or audio capture filter page
1871      */
1872     ShowPropertyPage( p_device_filter );
1873
1874     /*
1875      * Audio capture pin
1876      */
1877     if( p_graph && b_audio )
1878     {
1879         IAMStreamConfig *p_SC;
1880
1881         msg_Dbg( p_this, "Showing WDM Audio Configuration Pages" );
1882
1883         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1884                                      &MEDIATYPE_Audio, p_device_filter,
1885                                      IID_IAMStreamConfig, (void **)&p_SC );
1886         if( SUCCEEDED(hr) )
1887         {
1888             ShowPropertyPage(p_SC);
1889             p_SC->Release();
1890         }
1891
1892         /*
1893          * TV Audio filter
1894          */
1895         IAMTVAudio *p_TVA;
1896         HRESULT hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1897                                              &MEDIATYPE_Audio, p_device_filter,
1898                                              IID_IAMTVAudio, (void **)&p_TVA );
1899         if( SUCCEEDED(hr) )
1900         {
1901             ShowPropertyPage(p_TVA);
1902             p_TVA->Release();
1903         }
1904     }
1905
1906     /*
1907      * Video capture pin
1908      */
1909     if( p_graph && !b_audio )
1910     {
1911         IAMStreamConfig *p_SC;
1912
1913         msg_Dbg( p_this, "Showing WDM Video Configuration Pages" );
1914
1915         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1916                                      &MEDIATYPE_Interleaved, p_device_filter,
1917                                      IID_IAMStreamConfig, (void **)&p_SC );
1918         if( FAILED(hr) )
1919         {
1920             hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1921                                          &MEDIATYPE_Video, p_device_filter,
1922                                          IID_IAMStreamConfig, (void **)&p_SC );
1923         }
1924
1925         if( FAILED(hr) )
1926         {
1927             hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1928                                          &MEDIATYPE_Stream, p_device_filter,
1929                                          IID_IAMStreamConfig, (void **)&p_SC );
1930         }
1931
1932         if( SUCCEEDED(hr) )
1933         {
1934             ShowPropertyPage(p_SC);
1935             p_SC->Release();
1936         }
1937     }
1938 }
1939
1940 static void ShowTunerProperties( vlc_object_t *p_this,
1941                                  ICaptureGraphBuilder2 *p_graph,
1942                                  IBaseFilter *p_device_filter,
1943                                  vlc_bool_t b_audio )
1944 {
1945     HRESULT hr;
1946     msg_Dbg( p_this, "Configuring Tuner Properties" );
1947
1948     if( !p_graph || b_audio ) return;
1949
1950     IAMTVTuner *p_TV;
1951     hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1952                                  &MEDIATYPE_Interleaved, p_device_filter,
1953                                  IID_IAMTVTuner, (void **)&p_TV );
1954     if( FAILED(hr) )
1955     {
1956         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1957                                      &MEDIATYPE_Video, p_device_filter,
1958                                      IID_IAMTVTuner, (void **)&p_TV );
1959     }
1960
1961     if( FAILED(hr) )
1962     {
1963         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1964                                      &MEDIATYPE_Stream, p_device_filter,
1965                                      IID_IAMTVTuner, (void **)&p_TV );
1966     }
1967
1968     if( SUCCEEDED(hr) )
1969     {
1970         ShowPropertyPage(p_TV);
1971         p_TV->Release();
1972     }
1973 }
1974
1975 static void ConfigTuner( vlc_object_t *p_this, ICaptureGraphBuilder2 *p_graph,
1976                          IBaseFilter *p_device_filter )
1977 {
1978     int i_channel, i_country, i_input;
1979     long l_modes = 0;
1980     IAMTVTuner *p_TV;
1981     HRESULT hr;
1982
1983     if( !p_graph ) return;
1984
1985     i_channel = var_GetInteger( p_this, "dshow-tuner-channel" );
1986     i_country = var_GetInteger( p_this, "dshow-tuner-country" );
1987     i_input = var_GetInteger( p_this, "dshow-tuner-input" );
1988
1989     if( !i_channel && !i_country && !i_input ) return; /* Nothing to do */
1990
1991     msg_Dbg( p_this, "tuner config: channel %i, country %i, input type %i",
1992              i_channel, i_country, i_input );
1993
1994     hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Interleaved,
1995                                  p_device_filter, IID_IAMTVTuner,
1996                                  (void **)&p_TV );
1997     if( FAILED(hr) )
1998     {
1999         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Video,
2000                                      p_device_filter, IID_IAMTVTuner,
2001                                      (void **)&p_TV );
2002     }
2003
2004     if( FAILED(hr) )
2005     {
2006         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Stream,
2007                                      p_device_filter, IID_IAMTVTuner,
2008                                      (void **)&p_TV );
2009     }
2010
2011     if( FAILED(hr) )
2012     {
2013         msg_Dbg( p_this, "couldn't find tuner interface" );
2014         return;
2015     }
2016
2017     hr = p_TV->GetAvailableModes( &l_modes );
2018     if( SUCCEEDED(hr) && (l_modes & AMTUNER_MODE_TV) )
2019     {
2020         hr = p_TV->put_Mode( AMTUNER_MODE_TV );
2021     }
2022
2023     if( i_input == 1 ) p_TV->put_InputType( 0, TunerInputCable );
2024     else if( i_input == 2 ) p_TV->put_InputType( 0, TunerInputAntenna );
2025
2026     p_TV->put_CountryCode( i_country );
2027     p_TV->put_Channel( i_channel, AMTUNER_SUBCHAN_NO_TUNE,
2028                        AMTUNER_SUBCHAN_NO_TUNE );
2029     p_TV->Release();
2030 }