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 the VideoLAN team
   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
 534             if( p_stream->header.video.AvgTimePerFrame )
 535             {
 536                 fmt.video.i_frame_rate = 10000000;
 537                 fmt.video.i_frame_rate_base =
 538                     p_stream->header.video.AvgTimePerFrame;
 539             }
 540         }
 541         else if( p_stream->mt.majortype == MEDIATYPE_Audio )
 542         {
 543             es_format_Init( &fmt, AUDIO_ES, p_stream->i_fourcc );
 544
 545             fmt.audio.i_channels = p_stream->header.audio.nChannels;
 546             fmt.audio.i_rate = p_stream->header.audio.nSamplesPerSec;
 547             fmt.audio.i_bitspersample = p_stream->header.audio.wBitsPerSample;
 548             fmt.audio.i_blockalign = fmt.audio.i_channels *
 549                 fmt.audio.i_bitspersample / 8;
 550             fmt.i_bitrate = fmt.audio.i_channels * fmt.audio.i_rate *
 551                 fmt.audio.i_bitspersample;
 552         }
 553
 554         p_stream->p_es = es_out_Add( p_demux->out, &fmt );
 555     }
 556
 557     return VLC_SUCCESS;
 558 }
 559
 560 /*****************************************************************************
 561  * AccessOpen: open direct show device as an access module
 562  *****************************************************************************/
 563 static int AccessOpen( vlc_object_t *p_this )
 564 {
 565     access_t     *p_access = (access_t*)p_this;
 566     access_sys_t *p_sys;
 567
 568     p_access->p_sys = p_sys = (access_sys_t *)malloc( sizeof( access_sys_t ) );
 569     memset( p_sys, 0, sizeof( access_sys_t ) );
 570
 571     if( CommonOpen( p_this, p_sys, VLC_FALSE ) != VLC_SUCCESS )
 572     {
 573         CommonClose( p_this, p_sys );
 574         return VLC_EGENERIC;
 575     }
 576
 577     dshow_stream_t *p_stream = p_sys->pp_streams[0];
 578
 579     /* Check if we need to force demuxers */
 580     if( !p_access->psz_demux || !*p_access->psz_demux )
 581     {
 582         if( p_stream->i_fourcc == VLC_FOURCC('d','v','s','l') ||
 583             p_stream->i_fourcc == VLC_FOURCC('d','v','s','d') ||
 584             p_stream->i_fourcc == VLC_FOURCC('d','v','h','d') )
 585         {
 586             p_access->psz_demux = strdup( "rawdv" );
 587         }
 588         else if( p_stream->i_fourcc == VLC_FOURCC('m','p','2','v') )
 589         {
 590             p_access->psz_demux = "mpgv";
 591         }
 592     }
 593
 594     /* Setup Access */
 595     p_access->pf_read = NULL;
 596     p_access->pf_block = ReadCompressed;
 597     p_access->pf_control = AccessControl;
 598     p_access->pf_seek = NULL;
 599     p_access->info.i_update = 0;
 600     p_access->info.i_size = 0;
 601     p_access->info.i_pos = 0;
 602     p_access->info.b_eof = VLC_FALSE;
 603     p_access->info.i_title = 0;
 604     p_access->info.i_seekpoint = 0;
 605     p_access->p_sys = p_sys;
 606
 607     /* Everything is ready. Let's rock baby */
 608     msg_Dbg( p_this, "Playing...");
 609     p_sys->p_control->Run();
 610
 611     return VLC_SUCCESS;
 612 }
 613
 614 /*****************************************************************************
 615  * CommonClose: close device
 616  *****************************************************************************/
 617 static void CommonClose( vlc_object_t *p_this, access_sys_t *p_sys )
 618 {
 619     msg_Dbg( p_this, "Releasing DirectShow");
 620
 621     DeleteDirectShowGraph( p_sys );
 622
 623     /* Uninitialize OLE/COM */
 624     CoUninitialize();
 625
 626     for( int i = 0; i < p_sys->i_streams; i++ ) delete p_sys->pp_streams[i];
 627     if( p_sys->i_streams ) free( p_sys->pp_streams );
 628
 629     vlc_mutex_destroy( &p_sys->lock );
 630     vlc_cond_destroy( &p_sys->wait );
 631
 632     free( p_sys );
 633 }
 634
 635 /*****************************************************************************
 636  * AccessClose: close device
 637  *****************************************************************************/
 638 static void AccessClose( vlc_object_t *p_this )
 639 {
 640     access_t     *p_access = (access_t *)p_this;
 641     access_sys_t *p_sys    = p_access->p_sys;
 642
 643     /* Stop capturing stuff */
 644     p_sys->p_control->Stop();
 645
 646     CommonClose( p_this, p_sys );
 647 }
 648
 649 /*****************************************************************************
 650  * DemuxClose: close device
 651  *****************************************************************************/
 652 static void DemuxClose( vlc_object_t *p_this )
 653 {
 654     demux_t      *p_demux = (demux_t *)p_this;
 655     access_sys_t *p_sys   = (access_sys_t *)p_demux->p_sys;
 656
 657     /* Stop capturing stuff */
 658     p_sys->p_control->Stop();
 659
 660     CommonClose( p_this, p_sys );
 661 }
 662
 663 /****************************************************************************
 664  * ConnectFilters
 665  ****************************************************************************/
 666 static bool ConnectFilters( vlc_object_t *p_this, access_sys_t *p_sys,
 667                             IBaseFilter *p_filter,
 668                             CaptureFilter *p_capture_filter )
 669 {
 670     CapturePin *p_input_pin = p_capture_filter->CustomGetPin();
 671
 672     AM_MEDIA_TYPE mediaType = p_input_pin->CustomGetMediaType();
 673
 674     if( p_sys->p_capture_graph_builder2 )
 675     {
 676         if( FAILED(p_sys->p_capture_graph_builder2->
 677                 RenderStream( &PIN_CATEGORY_CAPTURE, &mediaType.majortype,
 678                               p_filter, 0, (IBaseFilter *)p_capture_filter )) )
 679         {
 680             return false;
 681         }
 682
 683         // Sort out all the possible video inputs
 684         // The class needs to be given the capture filters ANALOGVIDEO input pin
 685         IEnumPins *pins = 0;
 686         if( ( mediaType.majortype == MEDIATYPE_Video ||
 687               mediaType.majortype == MEDIATYPE_Stream ) &&
 688             SUCCEEDED(p_filter->EnumPins(&pins)) )
 689         {
 690             IPin        *pP = 0;
 691             ULONG        n;
 692             PIN_INFO     pinInfo;
 693             BOOL         Found = FALSE;
 694             IKsPropertySet *pKs=0;
 695             GUID guid;
 696             DWORD dw;
 697
 698             while( !Found && ( S_OK == pins->Next(1, &pP, &n) ) )
 699             {
 700                 if( S_OK == pP->QueryPinInfo(&pinInfo) )
 701                 {
 702                     // is this pin an ANALOGVIDEOIN input pin?
 703                     if( pinInfo.dir == PINDIR_INPUT &&
 704                         pP->QueryInterface( IID_IKsPropertySet,
 705                                             (void **)&pKs ) == S_OK )
 706                     {
 707                         if( pKs->Get( AMPROPSETID_Pin,
 708                                       AMPROPERTY_PIN_CATEGORY, NULL, 0,
 709                                       &guid, sizeof(GUID), &dw ) == S_OK )
 710                         {
 711                             if( guid == PIN_CATEGORY_ANALOGVIDEOIN )
 712                             {
 713                                 // recursively search crossbar routes
 714                                 FindCrossbarRoutes( p_this, p_sys, pP, 0 );
 715                                 // found it
 716                                 Found = TRUE;
 717                             }
 718                         }
 719                         pKs->Release();
 720                     }
 721                     pinInfo.pFilter->Release();
 722                 }
 723                 pP->Release();
 724             }
 725             pins->Release();
 726         }
 727         return true;
 728     }
 729     else
 730     {
 731         IEnumPins *p_enumpins;
 732         IPin *p_pin;
 733
 734         if( S_OK != p_filter->EnumPins( &p_enumpins ) ) return false;
 735
 736         while( S_OK == p_enumpins->Next( 1, &p_pin, NULL ) )
 737         {
 738             PIN_DIRECTION pin_dir;
 739             p_pin->QueryDirection( &pin_dir );
 740
 741             if( pin_dir == PINDIR_OUTPUT &&
 742                 p_sys->p_graph->ConnectDirect( p_pin, (IPin *)p_input_pin,
 743                                                0 ) == S_OK )
 744             {
 745                 p_pin->Release();
 746                 p_enumpins->Release();
 747                 return true;
 748             }
 749             p_pin->Release();
 750         }
 751
 752         p_enumpins->Release();
 753         return false;
 754     }
 755 }
 756
 757 /*
 758  * get fourcc priority from arbritary preference, the higher the better
 759  */
 760 static int GetFourCCPriority( int i_fourcc )
 761 {
 762     switch( i_fourcc )
 763     {
 764     case VLC_FOURCC('I','4','2','0'):
 765     case VLC_FOURCC('f','l','3','2'):
 766         return 9;
 767     case VLC_FOURCC('Y','V','1','2'):
 768     case VLC_FOURCC('a','r','a','w'):
 769         return 8;
 770     case VLC_FOURCC('R','V','2','4'):
 771         return 7;
 772     case VLC_FOURCC('Y','U','Y','2'):
 773     case VLC_FOURCC('R','V','3','2'):
 774     case VLC_FOURCC('R','G','B','A'):
 775         return 6;
 776     }
 777
 778     return 0;
 779 }
 780
 781 #define MAX_MEDIA_TYPES 32
 782
 783 static int OpenDevice( vlc_object_t *p_this, access_sys_t *p_sys,
 784                        string devicename, vlc_bool_t b_audio )
 785 {
 786     /* See if device is already opened */
 787     for( int i = 0; i < p_sys->i_streams; i++ )
 788     {
 789         if( devicename.size() &&
 790             p_sys->pp_streams[i]->devicename == devicename )
 791         {
 792             /* Already opened */
 793             return VLC_SUCCESS;
 794         }
 795     }
 796
 797     list<string> list_devices;
 798
 799     /* Enumerate devices and display their names */
 800     FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
 801
 802     if( !list_devices.size() )
 803         return VLC_EGENERIC;
 804
 805     list<string>::iterator iter;
 806     for( iter = list_devices.begin(); iter != list_devices.end(); iter++ )
 807         msg_Dbg( p_this, "found device: %s", iter->c_str() );
 808
 809     /* If no device name was specified, pick the 1st one */
 810     if( devicename.size() == 0 )
 811     {
 812         devicename = *list_devices.begin();
 813     }
 814
 815     // Use the system device enumerator and class enumerator to find
 816     // a capture/preview device, such as a desktop USB video camera.
 817     IBaseFilter *p_device_filter =
 818         FindCaptureDevice( p_this, &devicename, 0, b_audio );
 819     if( p_device_filter )
 820         msg_Dbg( p_this, "using device: %s", devicename.c_str() );
 821     else
 822     {
 823         msg_Err( p_this, "can't use device: %s, unsupported device type",
 824                  devicename.c_str() );
 825         return VLC_EGENERIC;
 826     }
 827
 828     // Retreive acceptable media types supported by device
 829     AM_MEDIA_TYPE media_types[MAX_MEDIA_TYPES];
 830     size_t media_count =
 831         EnumDeviceCaps( p_this, p_device_filter, p_sys->i_chroma,
 832                         p_sys->i_width, p_sys->i_height,
 833                         0, 0, 0, media_types, MAX_MEDIA_TYPES );
 834
 835     /* Find out if the pin handles MEDIATYPE_Stream, in which case we
 836      * won't add a prefered media type as this doesn't seem to work well
 837      * -- to investigate. */
 838     vlc_bool_t b_stream_type = VLC_FALSE;
 839     for( size_t i = 0; i < media_count; i++ )
 840     {
 841         if( media_types[i].majortype == MEDIATYPE_Stream )
 842         {
 843             b_stream_type = VLC_TRUE;
 844             break;
 845         }
 846     }
 847
 848     size_t mt_count = 0;
 849     AM_MEDIA_TYPE *mt = NULL;
 850
 851     if( !b_stream_type && !b_audio )
 852     {
 853         // Insert prefered video media type
 854         AM_MEDIA_TYPE mtr;
 855         VIDEOINFOHEADER vh;
 856
 857         mtr.majortype            = MEDIATYPE_Video;
 858         mtr.subtype              = MEDIASUBTYPE_I420;
 859         mtr.bFixedSizeSamples    = TRUE;
 860         mtr.bTemporalCompression = FALSE;
 861         mtr.pUnk                 = NULL;
 862         mtr.formattype           = FORMAT_VideoInfo;
 863         mtr.cbFormat             = sizeof(vh);
 864         mtr.pbFormat             = (BYTE *)&vh;
 865
 866         memset(&vh, 0, sizeof(vh));
 867
 868         vh.bmiHeader.biSize   = sizeof(vh.bmiHeader);
 869         vh.bmiHeader.biWidth  = p_sys->i_width > 0 ? p_sys->i_width : 320;
 870         vh.bmiHeader.biHeight = p_sys->i_height > 0 ? p_sys->i_height : 240;
 871         vh.bmiHeader.biPlanes      = 3;
 872         vh.bmiHeader.biBitCount    = 12;
 873         vh.bmiHeader.biCompression = VLC_FOURCC('I','4','2','0');
 874         vh.bmiHeader.biSizeImage   = vh.bmiHeader.biWidth * 12 *
 875             vh.bmiHeader.biHeight / 8;
 876         mtr.lSampleSize            = vh.bmiHeader.biSizeImage;
 877
 878         mt_count = 1;
 879         mt = (AM_MEDIA_TYPE *)malloc( sizeof(AM_MEDIA_TYPE)*mt_count );
 880         CopyMediaType(mt, &mtr);
 881     }
 882     else if( !b_stream_type )
 883     {
 884         // Insert prefered audio media type
 885         AM_MEDIA_TYPE mtr;
 886         WAVEFORMATEX wf;
 887
 888         mtr.majortype            = MEDIATYPE_Audio;
 889         mtr.subtype              = MEDIASUBTYPE_PCM;
 890         mtr.bFixedSizeSamples    = TRUE;
 891         mtr.bTemporalCompression = FALSE;
 892         mtr.lSampleSize          = 0;
 893         mtr.pUnk                 = NULL;
 894         mtr.formattype           = FORMAT_WaveFormatEx;
 895         mtr.cbFormat             = sizeof(wf);
 896         mtr.pbFormat             = (BYTE *)&wf;
 897
 898         memset(&wf, 0, sizeof(wf));
 899
 900         wf.wFormatTag = WAVE_FORMAT_PCM;
 901         wf.nChannels = 2;
 902         wf.nSamplesPerSec = 44100;
 903         wf.wBitsPerSample = 16;
 904         wf.nBlockAlign = wf.nSamplesPerSec * wf.wBitsPerSample / 8;
 905         wf.nAvgBytesPerSec = wf.nSamplesPerSec * wf.nBlockAlign;
 906         wf.cbSize = 0;
 907
 908         mt_count = 1;
 909         mt = (AM_MEDIA_TYPE *)malloc( sizeof(AM_MEDIA_TYPE)*mt_count );
 910         CopyMediaType(mt, &mtr);
 911     }
 912
 913     if( media_count > 0 )
 914     {
 915         mt = (AM_MEDIA_TYPE *)realloc( mt, sizeof(AM_MEDIA_TYPE) *
 916                                        (mt_count + media_count) );
 917
 918         // Order and copy returned media types according to arbitrary
 919         // fourcc priority
 920         for( size_t c = 0; c < media_count; c++ )
 921         {
 922             int slot_priority =
 923                 GetFourCCPriority(GetFourCCFromMediaType(media_types[c]));
 924             size_t slot_copy = c;
 925             for( size_t d = c+1; d < media_count; d++ )
 926             {
 927                 int priority =
 928                     GetFourCCPriority(GetFourCCFromMediaType(media_types[d]));
 929                 if( priority > slot_priority )
 930                 {
 931                     slot_priority = priority;
 932                     slot_copy = d;
 933                 }
 934             }
 935             if( slot_copy != c )
 936             {
 937                 mt[c+mt_count] = media_types[slot_copy];
 938                 media_types[slot_copy] = media_types[c];
 939             }
 940             else
 941             {
 942                 mt[c+mt_count] = media_types[c];
 943             }
 944         }
 945         mt_count += media_count;
 946     }
 947
 948     /* Create and add our capture filter */
 949     CaptureFilter *p_capture_filter =
 950         new CaptureFilter( p_this, p_sys, mt, mt_count );
 951     p_sys->p_graph->AddFilter( p_capture_filter, 0 );
 952
 953     /* Add the device filter to the graph (seems necessary with VfW before
 954      * accessing pin attributes). */
 955     p_sys->p_graph->AddFilter( p_device_filter, 0 );
 956
 957     /* Attempt to connect one of this device's capture output pins */
 958     msg_Dbg( p_this, "connecting filters" );
 959     if( ConnectFilters( p_this, p_sys, p_device_filter, p_capture_filter ) )
 960     {
 961         /* Success */
 962         msg_Dbg( p_this, "filters connected successfully !" );
 963
 964         dshow_stream_t dshow_stream;
 965         dshow_stream.b_pts = VLC_FALSE;
 966         dshow_stream.p_es = 0;
 967         dshow_stream.mt =
 968             p_capture_filter->CustomGetPin()->CustomGetMediaType();
 969
 970         /* Show Device properties. Done here so the VLC stream is setup with
 971          * the proper parameters. */
 972         vlc_value_t val;
 973         var_Get( p_this, "dshow-config", &val );
 974         if( val.b_bool )
 975         {
 976             ShowDeviceProperties( p_this, p_sys->p_capture_graph_builder2,
 977                                   p_device_filter, b_audio );
 978         }
 979
 980         ConfigTuner( p_this, p_sys->p_capture_graph_builder2,
 981                      p_device_filter );
 982
 983         var_Get( p_this, "dshow-tuner", &val );
 984         if( val.b_bool && dshow_stream.mt.majortype != MEDIATYPE_Stream )
 985         {
 986             /* FIXME: we do MEDIATYPE_Stream later so we don't do it twice. */
 987             ShowTunerProperties( p_this, p_sys->p_capture_graph_builder2,
 988                                  p_device_filter, b_audio );
 989         }
 990
 991         dshow_stream.mt =
 992             p_capture_filter->CustomGetPin()->CustomGetMediaType();
 993
 994         dshow_stream.i_fourcc = GetFourCCFromMediaType( dshow_stream.mt );
 995         if( dshow_stream.i_fourcc )
 996         {
 997             if( dshow_stream.mt.majortype == MEDIATYPE_Video )
 998             {
 999                 dshow_stream.header.video =
1000                     *(VIDEOINFOHEADER *)dshow_stream.mt.pbFormat;
1001                 msg_Dbg( p_this, "MEDIATYPE_Video" );
1002                 msg_Dbg( p_this, "selected video pin accepts format: %4.4s",
1003                          (char *)&dshow_stream.i_fourcc);
1004             }
1005             else if( dshow_stream.mt.majortype == MEDIATYPE_Audio )
1006             {
1007                 dshow_stream.header.audio =
1008                     *(WAVEFORMATEX *)dshow_stream.mt.pbFormat;
1009                 msg_Dbg( p_this, "MEDIATYPE_Audio" );
1010                 msg_Dbg( p_this, "selected audio pin accepts format: %4.4s",
1011                          (char *)&dshow_stream.i_fourcc);
1012             }
1013             else if( dshow_stream.mt.majortype == MEDIATYPE_Stream )
1014             {
1015                 msg_Dbg( p_this, "MEDIATYPE_Stream" );
1016                 msg_Dbg( p_this, "selected stream pin accepts format: %4.4s",
1017                          (char *)&dshow_stream.i_fourcc);
1018             }
1019             else
1020             {
1021                 msg_Dbg( p_this, "unknown stream majortype" );
1022                 goto fail;
1023             }
1024
1025             /* Add directshow elementary stream to our list */
1026             dshow_stream.p_device_filter = p_device_filter;
1027             dshow_stream.p_capture_filter = p_capture_filter;
1028
1029             p_sys->pp_streams = (dshow_stream_t **)realloc( p_sys->pp_streams,
1030                 sizeof(dshow_stream_t *) * (p_sys->i_streams + 1) );
1031             p_sys->pp_streams[p_sys->i_streams] = new dshow_stream_t;
1032             *p_sys->pp_streams[p_sys->i_streams++] = dshow_stream;
1033
1034             return VLC_SUCCESS;
1035         }
1036     }
1037
1038  fail:
1039     /* Remove filters from graph */
1040     p_sys->p_graph->RemoveFilter( p_device_filter );
1041     p_sys->p_graph->RemoveFilter( p_capture_filter );
1042
1043     /* Release objects */
1044     p_device_filter->Release();
1045     p_capture_filter->Release();
1046
1047     return VLC_EGENERIC;
1048 }
1049
1050 static IBaseFilter *
1051 FindCaptureDevice( vlc_object_t *p_this, string *p_devicename,
1052                    list<string> *p_listdevices, vlc_bool_t b_audio )
1053 {
1054     IBaseFilter *p_base_filter = NULL;
1055     IMoniker *p_moniker = NULL;
1056     ULONG i_fetched;
1057     HRESULT hr;
1058
1059     /* Create the system device enumerator */
1060     ICreateDevEnum *p_dev_enum = NULL;
1061
1062     hr = CoCreateInstance( CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC,
1063                            IID_ICreateDevEnum, (void **)&p_dev_enum );
1064     if( FAILED(hr) )
1065     {
1066         msg_Err( p_this, "failed to create the device enumerator (0x%lx)", hr);
1067         return NULL;
1068     }
1069
1070     /* Create an enumerator for the video capture devices */
1071     IEnumMoniker *p_class_enum = NULL;
1072     if( !b_audio )
1073         hr = p_dev_enum->CreateClassEnumerator( CLSID_VideoInputDeviceCategory,
1074                                                 &p_class_enum, 0 );
1075     else
1076         hr = p_dev_enum->CreateClassEnumerator( CLSID_AudioInputDeviceCategory,
1077                                                 &p_class_enum, 0 );
1078     p_dev_enum->Release();
1079     if( FAILED(hr) )
1080     {
1081         msg_Err( p_this, "failed to create the class enumerator (0x%lx)", hr );
1082         return NULL;
1083     }
1084
1085     /* If there are no enumerators for the requested type, then
1086      * CreateClassEnumerator will succeed, but p_class_enum will be NULL */
1087     if( p_class_enum == NULL )
1088     {
1089         msg_Err( p_this, "no capture device was detected" );
1090         return NULL;
1091     }
1092
1093     /* Enumerate the devices */
1094
1095     /* Note that if the Next() call succeeds but there are no monikers,
1096      * it will return S_FALSE (which is not a failure). Therefore, we check
1097      * that the return code is S_OK instead of using SUCCEEDED() macro. */
1098
1099     while( p_class_enum->Next( 1, &p_moniker, &i_fetched ) == S_OK )
1100     {
1101         /* Getting the property page to get the device name */
1102         IPropertyBag *p_bag;
1103         hr = p_moniker->BindToStorage( 0, 0, IID_IPropertyBag,
1104                                        (void **)&p_bag );
1105         if( SUCCEEDED(hr) )
1106         {
1107             VARIANT var;
1108             var.vt = VT_BSTR;
1109             hr = p_bag->Read( L"FriendlyName", &var, NULL );
1110             p_bag->Release();
1111             if( SUCCEEDED(hr) )
1112             {
1113                 int i_convert = WideCharToMultiByte(CP_ACP, 0, var.bstrVal,
1114                         SysStringLen(var.bstrVal), NULL, 0, NULL, NULL);
1115                 char *p_buf = (char *)alloca( i_convert+1 ); p_buf[0] = 0;
1116                 WideCharToMultiByte( CP_ACP, 0, var.bstrVal,
1117                         SysStringLen(var.bstrVal), p_buf, i_convert, NULL, NULL );
1118                 SysFreeString(var.bstrVal);
1119                 p_buf[i_convert] = '\0';
1120
1121                 if( p_listdevices ) p_listdevices->push_back( p_buf );
1122
1123                 if( p_devicename && *p_devicename == string(p_buf) )
1124                 {
1125                     /* Bind Moniker to a filter object */
1126                     hr = p_moniker->BindToObject( 0, 0, IID_IBaseFilter,
1127                                                   (void **)&p_base_filter );
1128                     if( FAILED(hr) )
1129                     {
1130                         msg_Err( p_this, "couldn't bind moniker to filter "
1131                                  "object (0x%lx)", hr );
1132                         p_moniker->Release();
1133                         p_class_enum->Release();
1134                         return NULL;
1135                     }
1136                     p_moniker->Release();
1137                     p_class_enum->Release();
1138                     return p_base_filter;
1139                 }
1140             }
1141         }
1142
1143         p_moniker->Release();
1144     }
1145
1146     p_class_enum->Release();
1147     return NULL;
1148 }
1149
1150 static size_t EnumDeviceCaps( vlc_object_t *p_this, IBaseFilter *p_filter,
1151                               int i_fourcc, int i_width, int i_height,
1152                               int i_channels, int i_samplespersec,
1153                               int i_bitspersample, AM_MEDIA_TYPE *mt,
1154                               size_t mt_max )
1155 {
1156     IEnumPins *p_enumpins;
1157     IPin *p_output_pin;
1158     IEnumMediaTypes *p_enummt;
1159     size_t mt_count = 0;
1160
1161     LONGLONG i_AvgTimePerFrame = 0;
1162     float r_fps = var_GetFloat( p_this, "dshow-fps" );
1163     if( r_fps )
1164         i_AvgTimePerFrame = 10000000000LL/(LONGLONG)(r_fps*1000.0f);
1165
1166     if( FAILED(p_filter->EnumPins( &p_enumpins )) )
1167     {
1168         msg_Dbg( p_this, "EnumDeviceCaps failed: no pin enumeration !");
1169         return 0;
1170     }
1171
1172     while( S_OK == p_enumpins->Next( 1, &p_output_pin, NULL ) )
1173     {
1174         PIN_INFO info;
1175
1176         if( S_OK == p_output_pin->QueryPinInfo( &info ) )
1177         {
1178             msg_Dbg( p_this, "EnumDeviceCaps: %s pin: %S",
1179                      info.dir == PINDIR_INPUT ? "input" : "output",
1180                      info.achName );
1181             if( info.pFilter ) info.pFilter->Release();
1182         }
1183
1184         p_output_pin->Release();
1185     }
1186
1187     p_enumpins->Reset();
1188
1189     while( !mt_count && p_enumpins->Next( 1, &p_output_pin, NULL ) == S_OK )
1190     {
1191         PIN_INFO info;
1192
1193         if( S_OK == p_output_pin->QueryPinInfo( &info ) )
1194         {
1195             if( info.pFilter ) info.pFilter->Release();
1196             if( info.dir == PINDIR_INPUT )
1197             {
1198                 p_output_pin->Release();
1199                 continue;
1200             }
1201             msg_Dbg( p_this, "EnumDeviceCaps: trying pin %S", info.achName );
1202         }
1203
1204         AM_MEDIA_TYPE *p_mt;
1205
1206         /*
1207         ** Configure pin with a default compatible media if possible
1208         */
1209
1210         IAMStreamConfig *pSC;
1211         if( SUCCEEDED(p_output_pin->QueryInterface( IID_IAMStreamConfig,
1212                                             (void **)&pSC )) )
1213         {
1214             int piCount, piSize;
1215             if( SUCCEEDED(pSC->GetNumberOfCapabilities(&piCount, &piSize)) )
1216             {
1217                 BYTE *pSCC= (BYTE *)CoTaskMemAlloc(piSize);
1218                 if( NULL != pSCC )
1219                 {
1220                     for( int i=0; i<piCount; ++i )
1221                     {
1222                         if( SUCCEEDED(pSC->GetStreamCaps(i, &p_mt, pSCC)) )
1223                         {
1224                             int i_current_fourcc = GetFourCCFromMediaType( *p_mt );
1225
1226                             if( !i_current_fourcc || (i_fourcc && (i_current_fourcc != i_fourcc)) )
1227                             {
1228                                 // incompatible or unrecognized chroma, try next media type
1229                                 FreeMediaType( *p_mt );
1230                                 CoTaskMemFree( (PVOID)p_mt );
1231                                 continue;
1232                             }
1233
1234                             if( MEDIATYPE_Video == p_mt->majortype
1235                                     && FORMAT_VideoInfo == p_mt->formattype )
1236                             {
1237                                 VIDEO_STREAM_CONFIG_CAPS *pVSCC = reinterpret_cast<VIDEO_STREAM_CONFIG_CAPS*>(pSCC);
1238                                 VIDEOINFOHEADER *pVih = reinterpret_cast<VIDEOINFOHEADER*>(p_mt->pbFormat);
1239
1240                                 if( i_AvgTimePerFrame )
1241                                 {
1242                                     if( pVSCC->MinFrameInterval > i_AvgTimePerFrame
1243                                       || i_AvgTimePerFrame > pVSCC->MaxFrameInterval )
1244                                     {
1245                                         // required frame rate not compatible, try next media type
1246                                         FreeMediaType( *p_mt );
1247                                         CoTaskMemFree( (PVOID)p_mt );
1248                                         continue;
1249                                     }
1250                                     pVih->AvgTimePerFrame = i_AvgTimePerFrame;
1251                                 }
1252
1253                                 if( i_width )
1254                                 {
1255                                     if( i_width % pVSCC->OutputGranularityX
1256                                      || pVSCC->MinOutputSize.cx > i_width
1257                                      || i_width > pVSCC->MaxOutputSize.cx )
1258                                     {
1259                                         // required width not compatible, try next media type
1260                                         FreeMediaType( *p_mt );
1261                                         CoTaskMemFree( (PVOID)p_mt );
1262                                         continue;
1263                                     }
1264                                     pVih->bmiHeader.biWidth = i_width;
1265                                 }
1266
1267                                 if( i_height )
1268                                 {
1269                                     if( i_height % pVSCC->OutputGranularityY
1270                                      || pVSCC->MinOutputSize.cy > i_height
1271                                      || i_height > pVSCC->MaxOutputSize.cy )
1272                                     {
1273                                         // required height not compatible, try next media type
1274                                         FreeMediaType( *p_mt );
1275                                         CoTaskMemFree( (PVOID)p_mt );
1276                                         continue;
1277                                     }
1278                                     pVih->bmiHeader.biHeight = i_height;
1279                                 }
1280
1281                                 // Set the sample size and image size.
1282                                 // (Round the image width up to a DWORD boundary.)
1283                                 p_mt->lSampleSize = pVih->bmiHeader.biSizeImage =
1284                                     ((pVih->bmiHeader.biWidth + 3) & ~3) *
1285                                     pVih->bmiHeader.biHeight * (pVih->bmiHeader.biBitCount>>3);
1286
1287                                 // no cropping, use full video input buffer
1288                                 memset(&(pVih->rcSource), 0, sizeof(RECT));
1289                                 memset(&(pVih->rcTarget), 0, sizeof(RECT));
1290
1291                                 // select this format as default
1292                                 if( SUCCEEDED( pSC->SetFormat(p_mt) ) )
1293                                 {
1294                                     msg_Dbg( p_this, "EnumDeviceCaps: input pin video format configured");
1295                                     // no need to check any more media types
1296                                     i = piCount;
1297                                 }
1298                                 else FreeMediaType( *p_mt );
1299                             }
1300                             else if( p_mt->majortype == MEDIATYPE_Audio
1301                                     && p_mt->formattype == FORMAT_WaveFormatEx )
1302                             {
1303                                 AUDIO_STREAM_CONFIG_CAPS *pASCC = reinterpret_cast<AUDIO_STREAM_CONFIG_CAPS*>(pSCC);
1304                                 WAVEFORMATEX *pWfx = reinterpret_cast<WAVEFORMATEX*>(p_mt->pbFormat);
1305
1306                                 if( i_channels )
1307                                 {
1308                                     if( i_channels % pASCC->ChannelsGranularity
1309                                      || (unsigned int)i_channels < pASCC->MinimumChannels
1310                                      || (unsigned int)i_channels > pASCC->MaximumChannels )
1311                                     {
1312                                         // required channels not compatible, try next media type
1313                                         FreeMediaType( *p_mt );
1314                                         CoTaskMemFree( (PVOID)p_mt );
1315                                         continue;
1316                                     }
1317                                     pWfx->nChannels = i_channels;
1318                                 }
1319
1320                                 if( i_samplespersec )
1321                                 {
1322                                     if( i_samplespersec % pASCC->BitsPerSampleGranularity
1323                                      || (unsigned int)i_samplespersec < pASCC->MinimumSampleFrequency
1324                                      || (unsigned int)i_samplespersec > pASCC->MaximumSampleFrequency )
1325                                     {
1326                                         // required sampling rate not compatible, try next media type
1327                                         FreeMediaType( *p_mt );
1328                                         CoTaskMemFree( (PVOID)p_mt );
1329                                         continue;
1330                                     }
1331                                     pWfx->nSamplesPerSec = i_samplespersec;
1332                                 }
1333
1334                                 if( i_bitspersample )
1335                                 {
1336                                     if( i_bitspersample % pASCC->BitsPerSampleGranularity
1337                                      || (unsigned int)i_bitspersample < pASCC->MinimumBitsPerSample
1338                                      || (unsigned int)i_bitspersample > pASCC->MaximumBitsPerSample )
1339                                     {
1340                                         // required sample size not compatible, try next media type
1341                                         FreeMediaType( *p_mt );
1342                                         CoTaskMemFree( (PVOID)p_mt );
1343                                         continue;
1344                                     }
1345                                     pWfx->wBitsPerSample = i_bitspersample;
1346                                 }
1347
1348                                 // select this format as default
1349                                 if( SUCCEEDED( pSC->SetFormat(p_mt) ) )
1350                                 {
1351                                     msg_Dbg( p_this, "EnumDeviceCaps: input pin default format configured");
1352                                     // no need to check any more media types
1353                                     i = piCount;
1354                                 }
1355                             }
1356                             FreeMediaType( *p_mt );
1357                             CoTaskMemFree( (PVOID)p_mt );
1358                         }
1359                     }
1360                     CoTaskMemFree( (LPVOID)pSCC );
1361                 }
1362             }
1363             pSC->Release();
1364         }
1365
1366         /*
1367         ** Probe pin for available medias (may be a previously configured one)
1368         */
1369
1370         if( FAILED( p_output_pin->EnumMediaTypes( &p_enummt ) ) )
1371         {
1372             p_output_pin->Release();
1373             continue;
1374         }
1375
1376
1377         while( p_enummt->Next( 1, &p_mt, NULL ) == S_OK )
1378         {
1379             int i_current_fourcc = GetFourCCFromMediaType( *p_mt );
1380             if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Video
1381                 && p_mt->formattype == FORMAT_VideoInfo )
1382             {
1383                 int i_current_width = ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biWidth;
1384                 int i_current_height = ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biHeight;
1385                 LONGLONG i_current_atpf = ((VIDEOINFOHEADER *)p_mt->pbFormat)->AvgTimePerFrame;
1386
1387                 if( i_current_height < 0 )
1388                     i_current_height = -i_current_height;
1389
1390                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
1391                          "accepts chroma: %4.4s, width:%i, height:%i, fps:%f",
1392                          (char *)&i_current_fourcc, i_current_width,
1393                          i_current_height, (10000000.0f/((float)i_current_atpf)) );
1394
1395                 if( ( !i_fourcc || i_fourcc == i_current_fourcc ) &&
1396                     ( !i_width || i_width == i_current_width ) &&
1397                     ( !i_height || i_height == i_current_height ) &&
1398                     ( !i_AvgTimePerFrame || i_AvgTimePerFrame == i_current_atpf ) &&
1399                     mt_count < mt_max )
1400                 {
1401                     /* Pick match */
1402                     mt[mt_count++] = *p_mt;
1403                 }
1404                 else FreeMediaType( *p_mt );
1405             }
1406             else if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Audio
1407                     && p_mt->formattype == FORMAT_WaveFormatEx)
1408             {
1409                 int i_current_channels =
1410                     ((WAVEFORMATEX *)p_mt->pbFormat)->nChannels;
1411                 int i_current_samplespersec =
1412                     ((WAVEFORMATEX *)p_mt->pbFormat)->nSamplesPerSec;
1413                 int i_current_bitspersample =
1414                     ((WAVEFORMATEX *)p_mt->pbFormat)->wBitsPerSample;
1415
1416                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
1417                          "accepts format: %4.4s, channels:%i, "
1418                          "samples/sec:%i bits/sample:%i",
1419                          (char *)&i_current_fourcc, i_current_channels,
1420                          i_current_samplespersec, i_current_bitspersample);
1421
1422                 if( (!i_channels || i_channels == i_current_channels) &&
1423                     (!i_samplespersec ||
1424                      i_samplespersec == i_current_samplespersec) &&
1425                     (!i_bitspersample ||
1426                      i_bitspersample == i_current_bitspersample) &&
1427                     mt_count < mt_max )
1428                 {
1429                     /* Pick  match */
1430                     mt[mt_count++] = *p_mt;
1431
1432                     /* Setup a few properties like the audio latency */
1433                     IAMBufferNegotiation *p_ambuf;
1434                     if( SUCCEEDED( p_output_pin->QueryInterface(
1435                           IID_IAMBufferNegotiation, (void **)&p_ambuf ) ) )
1436                     {
1437                         ALLOCATOR_PROPERTIES AllocProp;
1438                         AllocProp.cbAlign = -1;
1439
1440                         /* 100 ms of latency */
1441                         AllocProp.cbBuffer = i_current_channels *
1442                           i_current_samplespersec *
1443                           i_current_bitspersample / 8 / 10;
1444
1445                         AllocProp.cbPrefix = -1;
1446                         AllocProp.cBuffers = -1;
1447                         p_ambuf->SuggestAllocatorProperties( &AllocProp );
1448                         p_ambuf->Release();
1449                     }
1450                 }
1451                 else FreeMediaType( *p_mt );
1452             }
1453             else if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Stream )
1454             {
1455                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
1456                          "accepts stream format: %4.4s",
1457                          (char *)&i_current_fourcc );
1458
1459                 if( ( !i_fourcc || i_fourcc == i_current_fourcc ) &&
1460                     mt_count < mt_max )
1461                 {
1462                     /* Pick match */
1463                     mt[mt_count++] = *p_mt;
1464                     i_fourcc = i_current_fourcc;
1465                 }
1466                 else FreeMediaType( *p_mt );
1467             }
1468             else
1469             {
1470                 char *psz_type = "unknown";
1471                 if( p_mt->majortype == MEDIATYPE_Video ) psz_type = "video";
1472                 if( p_mt->majortype == MEDIATYPE_Audio ) psz_type = "audio";
1473                 if( p_mt->majortype == MEDIATYPE_Stream ) psz_type = "stream";
1474                 msg_Dbg( p_this, "EnumDeviceCaps: input pin media: unknown format "
1475                          "(%s %4.4s)", psz_type, (char *)&p_mt->subtype );
1476                 FreeMediaType( *p_mt );
1477             }
1478             CoTaskMemFree( (PVOID)p_mt );
1479         }
1480
1481         p_enummt->Release();
1482         p_output_pin->Release();
1483     }
1484
1485     p_enumpins->Release();
1486     return mt_count;
1487 }
1488
1489 /*****************************************************************************
1490  * ReadCompressed: reads compressed (MPEG/DV) data from the device.
1491  *****************************************************************************
1492  * Returns -1 in case of error, 0 in case of EOF, otherwise the number of
1493  * bytes.
1494  *****************************************************************************/
1495 static block_t *ReadCompressed( access_t *p_access )
1496 {
1497     access_sys_t   *p_sys = p_access->p_sys;
1498     dshow_stream_t *p_stream = NULL;
1499     VLCMediaSample sample;
1500
1501     /* Read 1 DV/MPEG frame (they contain the video and audio data) */
1502
1503     /* There must be only 1 elementary stream to produce a valid stream
1504      * of MPEG or DV data */
1505     p_stream = p_sys->pp_streams[0];
1506
1507     while( 1 )
1508     {
1509         if( p_access->b_die || p_access->b_error ) return 0;
1510
1511         /* Get new sample/frame from the elementary stream (blocking). */
1512         vlc_mutex_lock( &p_sys->lock );
1513
1514         if( p_stream->p_capture_filter->CustomGetPin()
1515               ->CustomGetSample( &sample ) != S_OK )
1516         {
1517             /* No data available. Wait until some data has arrived */
1518             vlc_cond_wait( &p_sys->wait, &p_sys->lock );
1519             vlc_mutex_unlock( &p_sys->lock );
1520             continue;
1521         }
1522
1523         vlc_mutex_unlock( &p_sys->lock );
1524
1525         /*
1526          * We got our sample
1527          */
1528         block_t *p_block;
1529         uint8_t *p_data;
1530         int i_data_size = sample.p_sample->GetActualDataLength();
1531
1532         if( !i_data_size || !(p_block = block_New( p_access, i_data_size )) )
1533         {
1534             sample.p_sample->Release();
1535             continue;
1536         }
1537
1538         sample.p_sample->GetPointer( &p_data );
1539         p_access->p_vlc->pf_memcpy( p_block->p_buffer, p_data, i_data_size );
1540         sample.p_sample->Release();
1541
1542         /* The caller got what he wanted */
1543         return p_block;
1544     }
1545
1546     return 0; /* never reached */
1547 }
1548
1549 /****************************************************************************
1550  * Demux:
1551  ****************************************************************************/
1552 static int Demux( demux_t *p_demux )
1553 {
1554     access_sys_t *p_sys = (access_sys_t *)p_demux->p_sys;
1555     dshow_stream_t *p_stream = NULL;
1556     VLCMediaSample sample;
1557     int i_data_size, i_stream;
1558     uint8_t *p_data;
1559     block_t *p_block;
1560
1561     vlc_mutex_lock( &p_sys->lock );
1562
1563     /* Try to grab an audio sample (audio has a higher priority) */
1564     for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
1565     {
1566         p_stream = p_sys->pp_streams[i_stream];
1567         if( p_stream->mt.majortype == MEDIATYPE_Audio &&
1568             p_stream->p_capture_filter &&
1569             p_stream->p_capture_filter->CustomGetPin()
1570               ->CustomGetSample( &sample ) == S_OK )
1571         {
1572             break;
1573         }
1574     }
1575     /* Try to grab a video sample */
1576     if( i_stream == p_sys->i_streams )
1577     {
1578         for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
1579         {
1580             p_stream = p_sys->pp_streams[i_stream];
1581             if( p_stream->p_capture_filter &&
1582                 p_stream->p_capture_filter->CustomGetPin()
1583                     ->CustomGetSample( &sample ) == S_OK )
1584             {
1585                 break;
1586             }
1587         }
1588     }
1589
1590     vlc_mutex_unlock( &p_sys->lock );
1591
1592     if( i_stream == p_sys->i_streams )
1593     {
1594         /* Sleep so we do not consume all the cpu, 10ms seems
1595          * like a good value (100fps) */
1596         msleep( 10000 );
1597         return 1;
1598     }
1599
1600     /*
1601      * We got our sample
1602      */
1603     i_data_size = sample.p_sample->GetActualDataLength();
1604     sample.p_sample->GetPointer( &p_data );
1605
1606     REFERENCE_TIME i_pts, i_end_date;
1607     HRESULT hr = sample.p_sample->GetTime( &i_pts, &i_end_date );
1608     if( hr != VFW_S_NO_STOP_TIME && hr != S_OK ) i_pts = 0;
1609
1610     if( !i_pts )
1611     {
1612         if( p_stream->mt.majortype == MEDIATYPE_Video || !p_stream->b_pts )
1613         {
1614             /* Use our data timestamp */
1615             i_pts = sample.i_timestamp;
1616             p_stream->b_pts = VLC_TRUE;
1617         }
1618     }
1619
1620     i_pts /= 10; /* Dshow works with 100 nano-seconds resolution */
1621
1622 #if 0
1623     msg_Dbg( p_demux, "Read() stream: %i, size: %i, PTS: "I64Fd,
1624              i_stream, i_data_size, i_pts );
1625 #endif
1626
1627     p_block = block_New( p_demux, i_data_size );
1628     p_demux->p_vlc->pf_memcpy( p_block->p_buffer, p_data, i_data_size );
1629     p_block->i_pts = p_block->i_dts = i_pts;
1630     sample.p_sample->Release();
1631
1632     es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_pts > 0 ? i_pts : 0 );
1633     es_out_Send( p_demux->out, p_stream->p_es, p_block );
1634
1635     return 1;
1636 }
1637
1638 /*****************************************************************************
1639  * AccessControl:
1640  *****************************************************************************/
1641 static int AccessControl( access_t *p_access, int i_query, va_list args )
1642 {
1643     vlc_bool_t   *pb_bool;
1644     int          *pi_int;
1645     int64_t      *pi_64;
1646
1647     switch( i_query )
1648     {
1649     /* */
1650     case ACCESS_CAN_SEEK:
1651     case ACCESS_CAN_FASTSEEK:
1652     case ACCESS_CAN_PAUSE:
1653     case ACCESS_CAN_CONTROL_PACE:
1654         pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
1655         *pb_bool = VLC_FALSE;
1656         break;
1657
1658     /* */
1659     case ACCESS_GET_MTU:
1660         pi_int = (int*)va_arg( args, int * );
1661         *pi_int = 0;
1662         break;
1663
1664     case ACCESS_GET_PTS_DELAY:
1665         pi_64 = (int64_t*)va_arg( args, int64_t * );
1666         *pi_64 = (int64_t)var_GetInteger( p_access, "dshow-caching" ) * 1000;
1667         break;
1668
1669     /* */
1670     case ACCESS_SET_PAUSE_STATE:
1671     case ACCESS_GET_TITLE_INFO:
1672     case ACCESS_SET_TITLE:
1673     case ACCESS_SET_SEEKPOINT:
1674     case ACCESS_SET_PRIVATE_ID_STATE:
1675         return VLC_EGENERIC;
1676
1677     default:
1678         msg_Warn( p_access, "unimplemented query in control" );
1679         return VLC_EGENERIC;
1680     }
1681
1682     return VLC_SUCCESS;
1683 }
1684
1685 /****************************************************************************
1686  * DemuxControl:
1687  ****************************************************************************/
1688 static int DemuxControl( demux_t *p_demux, int i_query, va_list args )
1689 {
1690     vlc_bool_t *pb;
1691     int64_t    *pi64;
1692
1693     switch( i_query )
1694     {
1695     /* Special for access_demux */
1696     case DEMUX_CAN_PAUSE:
1697     case DEMUX_SET_PAUSE_STATE:
1698     case DEMUX_CAN_CONTROL_PACE:
1699         pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
1700         *pb = VLC_FALSE;
1701         return VLC_SUCCESS;
1702
1703     case DEMUX_GET_PTS_DELAY:
1704         pi64 = (int64_t*)va_arg( args, int64_t * );
1705         *pi64 = (int64_t)var_GetInteger( p_demux, "dshow-caching" ) * 1000;
1706         return VLC_SUCCESS;
1707
1708     case DEMUX_GET_TIME:
1709         pi64 = (int64_t*)va_arg( args, int64_t * );
1710         *pi64 = mdate();
1711         return VLC_SUCCESS;
1712
1713     /* TODO implement others */
1714     default:
1715         return VLC_EGENERIC;
1716     }
1717
1718     return VLC_EGENERIC;
1719 }
1720
1721 /*****************************************************************************
1722  * config variable callback
1723  *****************************************************************************/
1724 static int FindDevicesCallback( vlc_object_t *p_this, char const *psz_name,
1725                                vlc_value_t newval, vlc_value_t oldval, void * )
1726 {
1727     module_config_t *p_item;
1728     vlc_bool_t b_audio = VLC_FALSE;
1729     int i;
1730
1731     p_item = config_FindConfig( p_this, psz_name );
1732     if( !p_item ) return VLC_SUCCESS;
1733
1734     if( !strcmp( psz_name, "dshow-adev" ) ) b_audio = VLC_TRUE;
1735
1736     /* Clear-up the current list */
1737     if( p_item->i_list )
1738     {
1739         /* Keep the 2 first entries */
1740         for( i = 2; i < p_item->i_list; i++ )
1741         {
1742             free( p_item->ppsz_list[i] );
1743             free( p_item->ppsz_list_text[i] );
1744         }
1745         /* TODO: Remove when no more needed */
1746         p_item->ppsz_list[i] = NULL;
1747         p_item->ppsz_list_text[i] = NULL;
1748     }
1749     p_item->i_list = 2;
1750
1751     /* Find list of devices */
1752     list<string> list_devices;
1753
1754     /* Initialize OLE/COM */
1755     CoInitialize( 0 );
1756
1757     FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
1758
1759     /* Uninitialize OLE/COM */
1760     CoUninitialize();
1761
1762     if( !list_devices.size() ) return VLC_SUCCESS;
1763
1764     p_item->ppsz_list =
1765         (char **)realloc( p_item->ppsz_list,
1766                           (list_devices.size()+3) * sizeof(char *) );
1767     p_item->ppsz_list_text =
1768         (char **)realloc( p_item->ppsz_list_text,
1769                           (list_devices.size()+3) * sizeof(char *) );
1770
1771     list<string>::iterator iter;
1772     for( iter = list_devices.begin(), i = 2; iter != list_devices.end();
1773          iter++, i++ )
1774     {
1775         p_item->ppsz_list[i] = strdup( iter->c_str() );
1776         p_item->ppsz_list_text[i] = NULL;
1777         p_item->i_list++;
1778     }
1779     p_item->ppsz_list[i] = NULL;
1780     p_item->ppsz_list_text[i] = NULL;
1781
1782     /* Signal change to the interface */
1783     p_item->b_dirty = VLC_TRUE;
1784
1785     return VLC_SUCCESS;
1786 }
1787
1788 static int ConfigDevicesCallback( vlc_object_t *p_this, char const *psz_name,
1789                                vlc_value_t newval, vlc_value_t oldval, void * )
1790 {
1791     module_config_t *p_item;
1792     vlc_bool_t b_audio = VLC_FALSE;
1793
1794     /* Initialize OLE/COM */
1795     CoInitialize( 0 );
1796
1797     p_item = config_FindConfig( p_this, psz_name );
1798     if( !p_item ) return VLC_SUCCESS;
1799
1800     if( !strcmp( psz_name, "dshow-adev" ) ) b_audio = VLC_TRUE;
1801
1802     string devicename;
1803
1804     if( newval.psz_string && *newval.psz_string )
1805     {
1806         devicename = newval.psz_string;
1807     }
1808     else
1809     {
1810         /* If no device name was specified, pick the 1st one */
1811         list<string> list_devices;
1812
1813         /* Enumerate devices */
1814         FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
1815         if( !list_devices.size() ) return VLC_EGENERIC;
1816         devicename = *list_devices.begin();
1817     }
1818
1819     IBaseFilter *p_device_filter =
1820         FindCaptureDevice( p_this, &devicename, NULL, b_audio );
1821     if( p_device_filter )
1822     {
1823         ShowPropertyPage( p_device_filter );
1824     }
1825     else
1826     {
1827         /* Uninitialize OLE/COM */
1828         CoUninitialize();
1829
1830         msg_Err( p_this, "didn't find device: %s", devicename.c_str() );
1831         return VLC_EGENERIC;
1832     }
1833
1834     /* Uninitialize OLE/COM */
1835     CoUninitialize();
1836
1837     return VLC_SUCCESS;
1838 }
1839
1840 /*****************************************************************************
1841  * Properties
1842  *****************************************************************************/
1843 static void ShowPropertyPage( IUnknown *obj )
1844 {
1845     ISpecifyPropertyPages *p_spec;
1846     CAUUID cauuid;
1847
1848     HRESULT hr = obj->QueryInterface( IID_ISpecifyPropertyPages,
1849                                       (void **)&p_spec );
1850     if( FAILED(hr) ) return;
1851
1852     if( SUCCEEDED(p_spec->GetPages( &cauuid )) )
1853     {
1854         if( cauuid.cElems > 0 )
1855         {
1856             HWND hwnd_desktop = ::GetDesktopWindow();
1857
1858             OleCreatePropertyFrame( hwnd_desktop, 30, 30, NULL, 1, &obj,
1859                                     cauuid.cElems, cauuid.pElems, 0, 0, NULL );
1860
1861             CoTaskMemFree( cauuid.pElems );
1862         }
1863         p_spec->Release();
1864     }
1865 }
1866
1867 static void ShowDeviceProperties( vlc_object_t *p_this,
1868                                   ICaptureGraphBuilder2 *p_graph,
1869                                   IBaseFilter *p_device_filter,
1870                                   vlc_bool_t b_audio )
1871 {
1872     HRESULT hr;
1873     msg_Dbg( p_this, "Configuring Device Properties" );
1874
1875     /*
1876      * Video or audio capture filter page
1877      */
1878     ShowPropertyPage( p_device_filter );
1879
1880     /*
1881      * Audio capture pin
1882      */
1883     if( p_graph && b_audio )
1884     {
1885         IAMStreamConfig *p_SC;
1886
1887         msg_Dbg( p_this, "Showing WDM Audio Configuration Pages" );
1888
1889         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1890                                      &MEDIATYPE_Audio, p_device_filter,
1891                                      IID_IAMStreamConfig, (void **)&p_SC );
1892         if( SUCCEEDED(hr) )
1893         {
1894             ShowPropertyPage(p_SC);
1895             p_SC->Release();
1896         }
1897
1898         /*
1899          * TV Audio filter
1900          */
1901         IAMTVAudio *p_TVA;
1902         HRESULT hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1903                                              &MEDIATYPE_Audio, p_device_filter,
1904                                              IID_IAMTVAudio, (void **)&p_TVA );
1905         if( SUCCEEDED(hr) )
1906         {
1907             ShowPropertyPage(p_TVA);
1908             p_TVA->Release();
1909         }
1910     }
1911
1912     /*
1913      * Video capture pin
1914      */
1915     if( p_graph && !b_audio )
1916     {
1917         IAMStreamConfig *p_SC;
1918
1919         msg_Dbg( p_this, "Showing WDM Video Configuration Pages" );
1920
1921         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1922                                      &MEDIATYPE_Interleaved, p_device_filter,
1923                                      IID_IAMStreamConfig, (void **)&p_SC );
1924         if( FAILED(hr) )
1925         {
1926             hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1927                                          &MEDIATYPE_Video, p_device_filter,
1928                                          IID_IAMStreamConfig, (void **)&p_SC );
1929         }
1930
1931         if( FAILED(hr) )
1932         {
1933             hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1934                                          &MEDIATYPE_Stream, p_device_filter,
1935                                          IID_IAMStreamConfig, (void **)&p_SC );
1936         }
1937
1938         if( SUCCEEDED(hr) )
1939         {
1940             ShowPropertyPage(p_SC);
1941             p_SC->Release();
1942         }
1943     }
1944 }
1945
1946 static void ShowTunerProperties( vlc_object_t *p_this,
1947                                  ICaptureGraphBuilder2 *p_graph,
1948                                  IBaseFilter *p_device_filter,
1949                                  vlc_bool_t b_audio )
1950 {
1951     HRESULT hr;
1952     msg_Dbg( p_this, "Configuring Tuner Properties" );
1953
1954     if( !p_graph || b_audio ) return;
1955
1956     IAMTVTuner *p_TV;
1957     hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1958                                  &MEDIATYPE_Interleaved, p_device_filter,
1959                                  IID_IAMTVTuner, (void **)&p_TV );
1960     if( FAILED(hr) )
1961     {
1962         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1963                                      &MEDIATYPE_Video, p_device_filter,
1964                                      IID_IAMTVTuner, (void **)&p_TV );
1965     }
1966
1967     if( FAILED(hr) )
1968     {
1969         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1970                                      &MEDIATYPE_Stream, p_device_filter,
1971                                      IID_IAMTVTuner, (void **)&p_TV );
1972     }
1973
1974     if( SUCCEEDED(hr) )
1975     {
1976         ShowPropertyPage(p_TV);
1977         p_TV->Release();
1978     }
1979 }
1980
1981 static void ConfigTuner( vlc_object_t *p_this, ICaptureGraphBuilder2 *p_graph,
1982                          IBaseFilter *p_device_filter )
1983 {
1984     int i_channel, i_country, i_input;
1985     long l_modes = 0;
1986     IAMTVTuner *p_TV;
1987     HRESULT hr;
1988
1989     if( !p_graph ) return;
1990
1991     i_channel = var_GetInteger( p_this, "dshow-tuner-channel" );
1992     i_country = var_GetInteger( p_this, "dshow-tuner-country" );
1993     i_input = var_GetInteger( p_this, "dshow-tuner-input" );
1994
1995     if( !i_channel && !i_country && !i_input ) return; /* Nothing to do */
1996
1997     msg_Dbg( p_this, "tuner config: channel %i, country %i, input type %i",
1998              i_channel, i_country, i_input );
1999
2000     hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Interleaved,
2001                                  p_device_filter, IID_IAMTVTuner,
2002                                  (void **)&p_TV );
2003     if( FAILED(hr) )
2004     {
2005         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Video,
2006                                      p_device_filter, IID_IAMTVTuner,
2007                                      (void **)&p_TV );
2008     }
2009
2010     if( FAILED(hr) )
2011     {
2012         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Stream,
2013                                      p_device_filter, IID_IAMTVTuner,
2014                                      (void **)&p_TV );
2015     }
2016
2017     if( FAILED(hr) )
2018     {
2019         msg_Dbg( p_this, "couldn't find tuner interface" );
2020         return;
2021     }
2022
2023     hr = p_TV->GetAvailableModes( &l_modes );
2024     if( SUCCEEDED(hr) && (l_modes & AMTUNER_MODE_TV) )
2025     {
2026         hr = p_TV->put_Mode( AMTUNER_MODE_TV );
2027     }
2028
2029     if( i_input == 1 ) p_TV->put_InputType( 0, TunerInputCable );
2030     else if( i_input == 2 ) p_TV->put_InputType( 0, TunerInputAntenna );
2031
2032     p_TV->put_CountryCode( i_country );
2033     p_TV->put_Channel( i_channel, AMTUNER_SUBCHAN_NO_TUNE,
2034                        AMTUNER_SUBCHAN_NO_TUNE );
2035     p_TV->Release();
2036 }