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  *         Damien Fouilleul <damienf@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #define __STDC_FORMAT_MACROS 1
  34 #include <inttypes.h>
  35
  36 #include <vlc_common.h>
  37 #include <vlc_plugin.h>
  38 #include <vlc_input.h>
  39 #include <vlc_access.h>
  40 #include <vlc_demux.h>
  41 #include <vlc_vout.h>
  42 #include <vlc_dialog.h>
  43 #include <vlc_charset.h>
  44
  45 #include "common.h"
  46 #include "filter.h"
  47
  48 /*****************************************************************************
  49  * Access: local prototypes
  50  *****************************************************************************/
  51 static block_t *ReadCompressed( access_t * );
  52 static int AccessControl ( access_t *, int, va_list );
  53
  54 static int Demux       ( demux_t * );
  55 static int DemuxControl( demux_t *, int, va_list );
  56
  57 static int OpenDevice( vlc_object_t *, access_sys_t *, string, bool );
  58 static IBaseFilter *FindCaptureDevice( vlc_object_t *, string *,
  59                                        list<string> *, bool );
  60 static size_t EnumDeviceCaps( vlc_object_t *, IBaseFilter *,
  61                               int, int, int, int, int, int,
  62                               AM_MEDIA_TYPE *mt, size_t );
  63 static bool ConnectFilters( vlc_object_t *, access_sys_t *,
  64                             IBaseFilter *, CaptureFilter * );
  65 static int FindDevicesCallback( vlc_object_t *, char const *,
  66                                 vlc_value_t, vlc_value_t, void * );
  67 static int ConfigDevicesCallback( vlc_object_t *, char const *,
  68                                   vlc_value_t, vlc_value_t, void * );
  69
  70 static void ShowPropertyPage( IUnknown * );
  71 static void ShowDeviceProperties( vlc_object_t *, ICaptureGraphBuilder2 *,
  72                                   IBaseFilter *, bool );
  73 static void ShowTunerProperties( vlc_object_t *, ICaptureGraphBuilder2 *,
  74                                  IBaseFilter *, bool );
  75 static void ConfigTuner( vlc_object_t *, ICaptureGraphBuilder2 *,
  76                          IBaseFilter * );
  77
  78 /*****************************************************************************
  79  * Module descriptor
  80  *****************************************************************************/
  81 static const char *const ppsz_vdev[] = { "", "none" };
  82 static const char *const ppsz_vdev_text[] = { N_("Default"), N_("None") };
  83 static const char *const ppsz_adev[] = { "", "none" };
  84 static const char *const ppsz_adev_text[] = { N_("Default"), N_("None") };
  85 static const int pi_tuner_input[] = { 0, 1, 2 };
  86 static const char *const ppsz_tuner_input_text[] =
  87     {N_("Default"), N_("Cable"), N_("Antenna")};
  88 static const int pi_amtuner_mode[]  = { AMTUNER_MODE_DEFAULT,
  89                                  AMTUNER_MODE_TV,
  90                                  AMTUNER_MODE_FM_RADIO,
  91                                  AMTUNER_MODE_AM_RADIO,
  92                                  AMTUNER_MODE_DSS };
  93 static const char *const ppsz_amtuner_mode_text[] = { N_("Default"),
  94                                           N_("TV"),
  95                                           N_("FM radio"),
  96                                           N_("AM radio"),
  97                                           N_("DSS") };
  98
  99 #define CACHING_TEXT N_("Caching value in ms")
 100 #define CACHING_LONGTEXT N_( \
 101     "Caching value for DirectShow streams. " \
 102     "This value should be set in milliseconds." )
 103 #define VDEV_TEXT N_("Video device name")
 104 #define VDEV_LONGTEXT N_( \
 105     "Name of the video device that will be used by the " \
 106     "DirectShow plugin. If you don't specify anything, the default device " \
 107     "will be used.")
 108 #define ADEV_TEXT N_("Audio device name")
 109 #define ADEV_LONGTEXT N_( \
 110     "Name of the audio device that will be used by the " \
 111     "DirectShow plugin. If you don't specify anything, the default device " \
 112     "will be used. ")
 113 #define SIZE_TEXT N_("Video size")
 114 #define SIZE_LONGTEXT N_( \
 115     "Size of the video that will be displayed by the " \
 116     "DirectShow plugin. If you don't specify anything the default size for " \
 117     "your device will be used. You can specify a standard size (cif, d1, ...) or <width>x<height>.")
 118 #define CHROMA_TEXT N_("Video input chroma format")
 119 #define CHROMA_LONGTEXT N_( \
 120     "Force the DirectShow video input to use a specific chroma format " \
 121     "(eg. I420 (default), RV24, etc.)")
 122 #define FPS_TEXT N_("Video input frame rate")
 123 #define FPS_LONGTEXT N_( \
 124     "Force the DirectShow video input to use a specific frame rate" \
 125     "(eg. 0 means default, 25, 29.97, 50, 59.94, etc.)")
 126 #define CONFIG_TEXT N_("Device properties")
 127 #define CONFIG_LONGTEXT N_( \
 128     "Show the properties dialog of the selected device before starting the " \
 129     "stream.")
 130 #define TUNER_TEXT N_("Tuner properties")
 131 #define TUNER_LONGTEXT N_( \
 132     "Show the tuner properties [channel selection] page." )
 133 #define CHANNEL_TEXT N_("Tuner TV Channel")
 134 #define CHANNEL_LONGTEXT N_( \
 135     "Set the TV channel the tuner will set to " \
 136     "(0 means default)." )
 137 #define COUNTRY_TEXT N_("Tuner country code")
 138 #define COUNTRY_LONGTEXT N_( \
 139     "Set the tuner country code that establishes the current " \
 140     "channel-to-frequency mapping (0 means default)." )
 141 #define TUNER_INPUT_TEXT N_("Tuner input type")
 142 #define TUNER_INPUT_LONGTEXT N_( \
 143     "Select the tuner input type (Cable/Antenna)." )
 144 #define VIDEO_IN_TEXT N_("Video input pin")
 145 #define VIDEO_IN_LONGTEXT N_( \
 146   "Select the video input source, such as composite, s-video, " \
 147   "or tuner. Since these settings are hardware-specific, you should find good " \
 148   "settings in the \"Device config\" area, and use those numbers here. -1 " \
 149   "means that settings will not be changed.")
 150 #define AUDIO_IN_TEXT N_("Audio input pin")
 151 #define AUDIO_IN_LONGTEXT N_( \
 152   "Select the audio input source. See the \"video input\" option." )
 153 #define VIDEO_OUT_TEXT N_("Video output pin")
 154 #define VIDEO_OUT_LONGTEXT N_( \
 155   "Select the video output type. See the \"video input\" option." )
 156 #define AUDIO_OUT_TEXT N_("Audio output pin")
 157 #define AUDIO_OUT_LONGTEXT N_( \
 158   "Select the audio output type. See the \"video input\" option." )
 159
 160 #define AMTUNER_MODE_TEXT N_("AM Tuner mode")
 161 #define AMTUNER_MODE_LONGTEXT N_( \
 162     "AM Tuner mode. Can be one of Default (0), TV (1)," \
 163      "AM Radio (2), FM Radio (3) or DSS (4).")
 164
 165 #define AUDIO_CHANNELS_TEXT N_("Number of audio channels")
 166 #define AUDIO_CHANNELS_LONGTEXT N_( \
 167     "Select audio input format with the given number of audio channels (if non 0)" )
 168
 169 #define AUDIO_SAMPLERATE_TEXT N_("Audio sample rate")
 170 #define AUDIO_SAMPLERATE_LONGTEXT N_( \
 171     "Select audio input format with the given sample rate (if non 0)" )
 172
 173 #define AUDIO_BITSPERSAMPLE_TEXT N_("Audio bits per sample")
 174 #define AUDIO_BITSPERSAMPLE_LONGTEXT N_( \
 175     "Select audio input format with the given bits/sample (if non 0)" )
 176
 177 static int  CommonOpen ( vlc_object_t *, access_sys_t *, bool );
 178 static void CommonClose( vlc_object_t *, access_sys_t * );
 179
 180 static int  AccessOpen ( vlc_object_t * );
 181 static void AccessClose( vlc_object_t * );
 182
 183 static int  DemuxOpen  ( vlc_object_t * );
 184 static void DemuxClose ( vlc_object_t * );
 185
 186 vlc_module_begin ()
 187     set_shortname( N_("DirectShow") )
 188     set_description( N_("DirectShow input") )
 189     set_category( CAT_INPUT )
 190     set_subcategory( SUBCAT_INPUT_ACCESS )
 191     add_integer( "dshow-caching", (mtime_t)(0.2*CLOCK_FREQ) / 1000, NULL,
 192                  CACHING_TEXT, CACHING_LONGTEXT, true )
 193
 194     add_string( "dshow-vdev", NULL, NULL, VDEV_TEXT, VDEV_LONGTEXT, false)
 195         change_string_list( ppsz_vdev, ppsz_vdev_text, FindDevicesCallback )
 196         change_action_add( FindDevicesCallback, N_("Refresh list") )
 197         change_action_add( ConfigDevicesCallback, N_("Configure") )
 198
 199     add_string( "dshow-adev", NULL, NULL, ADEV_TEXT, ADEV_LONGTEXT, false)
 200         change_string_list( ppsz_adev, ppsz_adev_text, FindDevicesCallback )
 201         change_action_add( FindDevicesCallback, N_("Refresh list") )
 202         change_action_add( ConfigDevicesCallback, N_("Configure") )
 203
 204     add_string( "dshow-size", NULL, NULL, SIZE_TEXT, SIZE_LONGTEXT, false)
 205
 206     add_string( "dshow-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT, true )
 207
 208     add_float( "dshow-fps", 0.0f, NULL, FPS_TEXT, FPS_LONGTEXT, true )
 209
 210     add_bool( "dshow-config", false, NULL, CONFIG_TEXT, CONFIG_LONGTEXT, true )
 211
 212     add_bool( "dshow-tuner", false, NULL, TUNER_TEXT, TUNER_LONGTEXT, true )
 213
 214     add_integer( "dshow-tuner-channel", 0, NULL, CHANNEL_TEXT, CHANNEL_LONGTEXT,
 215                 true )
 216
 217     add_integer( "dshow-tuner-country", 0, NULL, COUNTRY_TEXT, COUNTRY_LONGTEXT,
 218                 true )
 219
 220     add_integer( "dshow-tuner-input", 0, NULL, TUNER_INPUT_TEXT,
 221                  TUNER_INPUT_LONGTEXT, true )
 222         change_integer_list( pi_tuner_input, ppsz_tuner_input_text, NULL )
 223
 224     add_integer( "dshow-video-input",  -1, NULL, VIDEO_IN_TEXT,
 225                  VIDEO_IN_LONGTEXT, true )
 226
 227     add_integer( "dshow-video-output", -1, NULL, VIDEO_OUT_TEXT,
 228                  VIDEO_OUT_LONGTEXT, true )
 229
 230     add_integer( "dshow-audio-input",  -1, NULL, AUDIO_IN_TEXT,
 231                  AUDIO_IN_LONGTEXT, true )
 232
 233     add_integer( "dshow-audio-output", -1, NULL, AUDIO_OUT_TEXT,
 234                  AUDIO_OUT_LONGTEXT, true )
 235
 236     add_integer( "dshow-amtuner-mode", AMTUNER_MODE_TV, NULL,
 237                 AMTUNER_MODE_TEXT, AMTUNER_MODE_LONGTEXT, false)
 238         change_integer_list( pi_amtuner_mode, ppsz_amtuner_mode_text, NULL )
 239
 240     add_integer( "dshow-audio-channels", 0, NULL, AUDIO_CHANNELS_TEXT,
 241                  AUDIO_CHANNELS_LONGTEXT, true )
 242     add_integer( "dshow-audio-samplerate", 0, NULL, AUDIO_SAMPLERATE_TEXT,
 243                  AUDIO_SAMPLERATE_LONGTEXT, true )
 244     add_integer( "dshow-audio-bitspersample", 0, NULL, AUDIO_BITSPERSAMPLE_TEXT,
 245                  AUDIO_BITSPERSAMPLE_LONGTEXT, true )
 246
 247     add_shortcut( "dshow" )
 248     set_capability( "access_demux", 0 )
 249     set_callbacks( DemuxOpen, DemuxClose )
 250
 251     add_submodule ()
 252     set_description( N_("DirectShow input") )
 253     add_shortcut( "dshow" )
 254     set_capability( "access", 0 )
 255     set_callbacks( AccessOpen, AccessClose )
 256
 257 vlc_module_end ()
 258
 259 /*****************************************************************************
 260  * DirectShow elementary stream descriptor
 261  *****************************************************************************/
 262 typedef struct dshow_stream_t
 263 {
 264     string          devicename;
 265     IBaseFilter     *p_device_filter;
 266     CaptureFilter   *p_capture_filter;
 267     AM_MEDIA_TYPE   mt;
 268
 269     union
 270     {
 271       VIDEOINFOHEADER video;
 272       WAVEFORMATEX    audio;
 273
 274     } header;
 275
 276     int             i_fourcc;
 277     es_out_id_t     *p_es;
 278
 279     bool      b_pts;
 280
 281     deque<VLCMediaSample> samples_queue;
 282 } dshow_stream_t;
 283
 284 /*****************************************************************************
 285  * DirectShow utility functions
 286  *****************************************************************************/
 287 static void CreateDirectShowGraph( access_sys_t *p_sys )
 288 {
 289     p_sys->i_crossbar_route_depth = 0;
 290
 291     /* Create directshow filter graph */
 292     if( SUCCEEDED( CoCreateInstance( CLSID_FilterGraph, 0, CLSCTX_INPROC,
 293                        (REFIID)IID_IFilterGraph, (void **)&p_sys->p_graph) ) )
 294     {
 295         /* Create directshow capture graph builder if available */
 296         if( SUCCEEDED( CoCreateInstance( CLSID_CaptureGraphBuilder2, 0,
 297                          CLSCTX_INPROC, (REFIID)IID_ICaptureGraphBuilder2,
 298                          (void **)&p_sys->p_capture_graph_builder2 ) ) )
 299         {
 300             p_sys->p_capture_graph_builder2->
 301                 SetFiltergraph((IGraphBuilder *)p_sys->p_graph);
 302         }
 303
 304         p_sys->p_graph->QueryInterface( IID_IMediaControl,
 305                                         (void **)&p_sys->p_control );
 306     }
 307 }
 308
 309 static void DeleteDirectShowGraph( access_sys_t *p_sys )
 310 {
 311     DeleteCrossbarRoutes( p_sys );
 312
 313     /* Remove filters from graph */
 314     for( int i = 0; i < p_sys->i_streams; i++ )
 315     {
 316         p_sys->p_graph->RemoveFilter( p_sys->pp_streams[i]->p_capture_filter );
 317         p_sys->p_graph->RemoveFilter( p_sys->pp_streams[i]->p_device_filter );
 318         p_sys->pp_streams[i]->p_capture_filter->Release();
 319         p_sys->pp_streams[i]->p_device_filter->Release();
 320     }
 321
 322     /* Release directshow objects */
 323     if( p_sys->p_control )
 324     {
 325         p_sys->p_control->Release();
 326         p_sys->p_control = NULL;
 327     }
 328     if( p_sys->p_capture_graph_builder2 )
 329     {
 330         p_sys->p_capture_graph_builder2->Release();
 331         p_sys->p_capture_graph_builder2 = NULL;
 332     }
 333
 334     if( p_sys->p_graph )
 335     {
 336         p_sys->p_graph->Release();
 337         p_sys->p_graph = NULL;
 338     }
 339 }
 340
 341 /*****************************************************************************
 342  * CommonOpen: open direct show device
 343  *****************************************************************************/
 344 static int CommonOpen( vlc_object_t *p_this, access_sys_t *p_sys,
 345                        bool b_access_demux )
 346 {
 347     vlc_value_t  val;
 348     int i;
 349
 350     /* Get/parse options and open device(s) */
 351     string vdevname, adevname;
 352     int i_width = 0, i_height = 0, i_chroma = 0;
 353     bool b_use_audio = true;
 354     bool b_use_video = true;
 355
 356     /* Initialize OLE/COM */
 357     CoInitialize( 0 );
 358
 359     var_Create( p_this, "dshow-config", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 360     var_Create( p_this, "dshow-tuner", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 361     var_Create( p_this, "dshow-vdev", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 362     var_Get( p_this, "dshow-vdev", &val );
 363     if( val.psz_string )
 364     {
 365         msg_Dbg( p_this, "dshow-vdev: %s", val.psz_string ) ;
 366         /* skip none device */
 367         if ( strncasecmp( val.psz_string, "none", 4 ) != 0 )
 368             vdevname = string( val.psz_string );
 369         else
 370             b_use_video = false ;
 371     }
 372     free( val.psz_string );
 373
 374     var_Create( p_this, "dshow-adev", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 375     var_Get( p_this, "dshow-adev", &val );
 376     if( val.psz_string )
 377     {
 378         msg_Dbg( p_this, "dshow-adev: %s", val.psz_string ) ;
 379         /* skip none device */
 380         if ( strncasecmp( val.psz_string, "none", 4 ) != 0 )
 381             adevname = string( val.psz_string );
 382         else
 383             b_use_audio = false ;
 384     }
 385     free( val.psz_string );
 386
 387     static struct {const char *psz_size; int  i_width; int  i_height;} size_table[] =
 388     { { "subqcif", 128, 96 }, { "qsif", 160, 120 }, { "qcif", 176, 144 },
 389       { "sif", 320, 240 }, { "cif", 352, 288 }, { "d1", 640, 480 },
 390       { 0, 0, 0 },
 391     };
 392
 393     var_Create( p_this, "dshow-size", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 394     var_Get( p_this, "dshow-size", &val );
 395     if( val.psz_string && *val.psz_string )
 396     {
 397         for( i = 0; size_table[i].psz_size; i++ )
 398         {
 399             if( !strcmp( val.psz_string, size_table[i].psz_size ) )
 400             {
 401                 i_width = size_table[i].i_width;
 402                 i_height = size_table[i].i_height;
 403                 break;
 404             }
 405         }
 406         if( !size_table[i].psz_size ) /* Try to parse "WidthxHeight" */
 407         {
 408             char *psz_parser;
 409             i_width = strtol( val.psz_string, &psz_parser, 0 );
 410             if( *psz_parser == 'x' || *psz_parser == 'X')
 411             {
 412                 i_height = strtol( psz_parser + 1, &psz_parser, 0 );
 413             }
 414             msg_Dbg( p_this, "width x height %dx%d", i_width, i_height );
 415         }
 416     }
 417     free( val.psz_string );
 418
 419     p_sys->b_chroma = false;
 420     var_Create( p_this, "dshow-chroma", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 421     var_Get( p_this, "dshow-chroma", &val );
 422     if( val.psz_string && strlen( val.psz_string ) >= 4 )
 423     {
 424         i_chroma = vlc_fourcc_GetCodec( UNKNOWN_ES,
 425                                         VLC_FOURCC( val.psz_string[0], val.psz_string[1],
 426                                                     val.psz_string[2], val.psz_string[3] ) );
 427         p_sys->b_chroma = true;
 428     }
 429     free( val.psz_string );
 430
 431     var_Create( p_this, "dshow-fps", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
 432     var_Create( p_this, "dshow-tuner-channel",
 433                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 434     var_Create( p_this, "dshow-tuner-country",
 435                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 436     var_Create( p_this, "dshow-tuner-input",
 437                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 438
 439     var_Create( p_this, "dshow-amtuner-mode",
 440                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 441
 442     var_Create( p_this, "dshow-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 443
 444     var_Create( p_this, "dshow-video-input", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 445     var_Create( p_this, "dshow-audio-input", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 446     var_Create( p_this, "dshow-video-output", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 447     var_Create( p_this, "dshow-audio-output", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 448
 449     /* Initialize some data */
 450     p_sys->i_streams = 0;
 451     p_sys->pp_streams = NULL;
 452     p_sys->i_width = i_width;
 453     p_sys->i_height = i_height;
 454     p_sys->i_chroma = i_chroma;
 455
 456     p_sys->p_graph = NULL;
 457     p_sys->p_capture_graph_builder2 = NULL;
 458     p_sys->p_control = NULL;
 459
 460     /* Build directshow graph */
 461     CreateDirectShowGraph( p_sys );
 462
 463     vlc_mutex_init( &p_sys->lock );
 464     vlc_cond_init( &p_sys->wait );
 465
 466     if( !b_use_video && !b_use_audio )
 467     {
 468         dialog_Fatal( p_this, _("Capture failed"),
 469                         _("No video or audio device selected.") );
 470         return VLC_EGENERIC ;
 471     }
 472
 473     if( !b_use_video )
 474         msg_Dbg( p_this, "skipping video device" ) ;
 475     bool b_err_video = false ;
 476
 477     if( b_use_video && OpenDevice( p_this, p_sys, vdevname, 0 ) != VLC_SUCCESS )
 478     {
 479         msg_Err( p_this, "can't open video device");
 480         b_err_video = true ;
 481     }
 482
 483     if ( b_use_video && !b_err_video )
 484     {
 485         /* Check if we can handle the demuxing ourselves or need to spawn
 486          * a demuxer module */
 487         dshow_stream_t *p_stream = p_sys->pp_streams[p_sys->i_streams-1];
 488
 489         if( p_stream->mt.majortype == MEDIATYPE_Video )
 490         {
 491             if( /* Raw DV stream */
 492                 p_stream->i_fourcc == VLC_CODEC_DV ||
 493                 /* Raw MPEG video stream */
 494                 p_stream->i_fourcc == VLC_CODEC_MP2V )
 495             {
 496                 b_use_audio = false;
 497
 498                 if( b_access_demux )
 499                 {
 500                     /* Let the access (only) take care of that */
 501                     return VLC_EGENERIC;
 502                 }
 503             }
 504         }
 505
 506         if( p_stream->mt.majortype == MEDIATYPE_Stream )
 507         {
 508             b_use_audio = false;
 509
 510             if( b_access_demux )
 511             {
 512                 /* Let the access (only) take care of that */
 513                 return VLC_EGENERIC;
 514             }
 515
 516             var_Get( p_this, "dshow-tuner", &val );
 517             if( val.b_bool )
 518             {
 519                 /* FIXME: we do MEDIATYPE_Stream here so we don't do
 520                  * it twice. */
 521                 ShowTunerProperties( p_this, p_sys->p_capture_graph_builder2,
 522                                      p_stream->p_device_filter, 0 );
 523             }
 524         }
 525     }
 526
 527     if( !b_use_audio )
 528         msg_Dbg( p_this, "skipping audio device") ;
 529
 530     bool b_err_audio = false ;
 531
 532     if( b_use_audio && OpenDevice( p_this, p_sys, adevname, 1 ) != VLC_SUCCESS )
 533     {
 534         msg_Err( p_this, "can't open audio device");
 535         b_err_audio = true ;
 536     }
 537
 538     if( ( b_use_video && b_err_video && b_use_audio && b_err_audio ) ||
 539         ( !b_use_video && b_use_audio && b_err_audio ) ||
 540         ( b_use_video && !b_use_audio && b_err_video ) )
 541     {
 542         msg_Err( p_this, "FATAL: could not open ANY device" ) ;
 543         dialog_Fatal( p_this,  _("Capture failed"),
 544                         _("VLC cannot open ANY capture device."
 545                           "Check the error log for details.") );
 546         return VLC_EGENERIC ;
 547     }
 548
 549     for( i = p_sys->i_crossbar_route_depth-1; i >= 0 ; --i )
 550     {
 551             var_Get( p_this, "dshow-video-input", &val );
 552             if( val.i_int >= 0 )
 553                     p_sys->crossbar_routes[i].VideoInputIndex=val.i_int;
 554             var_Get( p_this, "dshow-video-output", &val );
 555             if( val.i_int >= 0 )
 556                     p_sys->crossbar_routes[i].VideoOutputIndex=val.i_int;
 557             var_Get( p_this, "dshow-audio-input", &val );
 558             if( val.i_int >= 0 )
 559                     p_sys->crossbar_routes[i].AudioInputIndex=val.i_int;
 560             var_Get( p_this, "dshow-audio-output", &val );
 561             if( val.i_int >= 0 )
 562                     p_sys->crossbar_routes[i].AudioOutputIndex=val.i_int;
 563
 564         IAMCrossbar *pXbar = p_sys->crossbar_routes[i].pXbar;
 565         LONG VideoInputIndex = p_sys->crossbar_routes[i].VideoInputIndex;
 566         LONG VideoOutputIndex = p_sys->crossbar_routes[i].VideoOutputIndex;
 567         LONG AudioInputIndex = p_sys->crossbar_routes[i].AudioInputIndex;
 568         LONG AudioOutputIndex = p_sys->crossbar_routes[i].AudioOutputIndex;
 569
 570         if( SUCCEEDED(pXbar->Route(VideoOutputIndex, VideoInputIndex)) )
 571         {
 572             msg_Dbg( p_this, "crossbar at depth %d, routed video "
 573                      "output %ld to video input %ld", i, VideoOutputIndex,
 574                      VideoInputIndex );
 575
 576             if( AudioOutputIndex != -1 && AudioInputIndex != -1 )
 577             {
 578                 if( SUCCEEDED( pXbar->Route(AudioOutputIndex,
 579                                             AudioInputIndex)) )
 580                 {
 581                     msg_Dbg(p_this, "crossbar at depth %d, routed audio "
 582                             "output %ld to audio input %ld", i,
 583                             AudioOutputIndex, AudioInputIndex );
 584                 }
 585             }
 586         }
 587         else
 588             msg_Err( p_this, "crossbar at depth %d could not route video "
 589                      "output %ld to input %ld", i, VideoOutputIndex, VideoInputIndex );
 590     }
 591
 592     /*
 593     ** Show properties pages from other filters in graph
 594     */
 595     var_Get( p_this, "dshow-config", &val );
 596     if( val.b_bool )
 597     {
 598         for( i = p_sys->i_crossbar_route_depth-1; i >= 0 ; --i )
 599         {
 600             IAMCrossbar *pXbar = p_sys->crossbar_routes[i].pXbar;
 601             IBaseFilter *p_XF;
 602
 603             if( SUCCEEDED( pXbar->QueryInterface( IID_IBaseFilter,
 604                                                   (void **)&p_XF ) ) )
 605             {
 606                 ShowPropertyPage( p_XF );
 607                 p_XF->Release();
 608             }
 609         }
 610     }
 611
 612     /* Initialize some data */
 613     p_sys->i_current_stream = 0;
 614
 615     if( !p_sys->i_streams ) return VLC_EGENERIC;
 616
 617     return VLC_SUCCESS;
 618 }
 619
 620 /*****************************************************************************
 621  * DemuxOpen: open direct show device as an access_demux module
 622  *****************************************************************************/
 623 static int DemuxOpen( vlc_object_t *p_this )
 624 {
 625     demux_t      *p_demux = (demux_t *)p_this;
 626     access_sys_t *p_sys;
 627     int i;
 628
 629     p_sys = (access_sys_t*)calloc( 1, sizeof( access_sys_t ) );
 630     if( !p_sys )
 631         return VLC_ENOMEM;
 632     p_demux->p_sys = (demux_sys_t *)p_sys;
 633
 634     if( CommonOpen( p_this, p_sys, true ) != VLC_SUCCESS )
 635     {
 636         CommonClose( p_this, p_sys );
 637         return VLC_EGENERIC;
 638     }
 639
 640     /* Everything is ready. Let's rock baby */
 641     msg_Dbg( p_this, "Playing...");
 642     p_sys->p_control->Run();
 643
 644     p_demux->pf_demux   = Demux;
 645     p_demux->pf_control = DemuxControl;
 646     p_demux->info.i_update = 0;
 647     p_demux->info.i_title = 0;
 648     p_demux->info.i_seekpoint = 0;
 649
 650     for( i = 0; i < p_sys->i_streams; i++ )
 651     {
 652         dshow_stream_t *p_stream = p_sys->pp_streams[i];
 653         es_format_t fmt;
 654
 655         if( p_stream->mt.majortype == MEDIATYPE_Video )
 656         {
 657             es_format_Init( &fmt, VIDEO_ES, p_stream->i_fourcc );
 658
 659             fmt.video.i_width  = p_stream->header.video.bmiHeader.biWidth;
 660             fmt.video.i_height = p_stream->header.video.bmiHeader.biHeight;
 661             fmt.video.i_aspect = 4 * VOUT_ASPECT_FACTOR / 3;
 662
 663             if( !p_stream->header.video.bmiHeader.biCompression )
 664             {
 665                 /* RGB DIB are coded from bottom to top */
 666                 fmt.video.i_height = (unsigned int)(-(int)fmt.video.i_height);
 667             }
 668
 669             /* Setup rgb mask for RGB formats */
 670             if( p_stream->i_fourcc == VLC_CODEC_RGB24 )
 671             {
 672                 /* This is in BGR format */
 673                 fmt.video.i_bmask = 0x00ff0000;
 674                 fmt.video.i_gmask = 0x0000ff00;
 675                 fmt.video.i_rmask = 0x000000ff;
 676             }
 677
 678             if( p_stream->header.video.AvgTimePerFrame )
 679             {
 680                 fmt.video.i_frame_rate = 10000000;
 681                 fmt.video.i_frame_rate_base =
 682                     p_stream->header.video.AvgTimePerFrame;
 683             }
 684         }
 685         else if( p_stream->mt.majortype == MEDIATYPE_Audio )
 686         {
 687             es_format_Init( &fmt, AUDIO_ES, p_stream->i_fourcc );
 688
 689             fmt.audio.i_channels = p_stream->header.audio.nChannels;
 690             fmt.audio.i_rate = p_stream->header.audio.nSamplesPerSec;
 691             fmt.audio.i_bitspersample = p_stream->header.audio.wBitsPerSample;
 692             fmt.audio.i_blockalign = fmt.audio.i_channels *
 693                 fmt.audio.i_bitspersample / 8;
 694             fmt.i_bitrate = fmt.audio.i_channels * fmt.audio.i_rate *
 695                 fmt.audio.i_bitspersample;
 696         }
 697
 698         p_stream->p_es = es_out_Add( p_demux->out, &fmt );
 699     }
 700
 701     return VLC_SUCCESS;
 702 }
 703
 704 /*****************************************************************************
 705  * AccessOpen: open direct show device as an access module
 706  *****************************************************************************/
 707 static int AccessOpen( vlc_object_t *p_this )
 708 {
 709     access_t     *p_access = (access_t*)p_this;
 710     access_sys_t *p_sys;
 711
 712     p_access->p_sys = p_sys = (access_sys_t*)calloc( 1, sizeof( access_sys_t ) );
 713     if( !p_sys )
 714         return VLC_ENOMEM;
 715
 716     if( CommonOpen( p_this, p_sys, false ) != VLC_SUCCESS )
 717     {
 718         CommonClose( p_this, p_sys );
 719         return VLC_EGENERIC;
 720     }
 721
 722     dshow_stream_t *p_stream = p_sys->pp_streams[0];
 723
 724     /* Check if we need to force demuxers */
 725     if( !p_access->psz_demux || !*p_access->psz_demux )
 726     {
 727         if( p_stream->i_fourcc == VLC_CODEC_DV )
 728         {
 729             free( p_access->psz_demux );
 730             p_access->psz_demux = strdup( "rawdv" );
 731         }
 732         else if( p_stream->i_fourcc == VLC_CODEC_MP2V )
 733         {
 734             free( p_access->psz_demux );
 735             p_access->psz_demux = strdup( "mpgv" );
 736         }
 737     }
 738
 739     /* Setup Access */
 740     p_access->pf_read = NULL;
 741     p_access->pf_block = ReadCompressed;
 742     p_access->pf_control = AccessControl;
 743     p_access->pf_seek = NULL;
 744     p_access->info.i_update = 0;
 745     p_access->info.i_size = 0;
 746     p_access->info.i_pos = 0;
 747     p_access->info.b_eof = false;
 748     p_access->info.i_title = 0;
 749     p_access->info.i_seekpoint = 0;
 750     p_access->p_sys = p_sys;
 751
 752     /* Everything is ready. Let's rock baby */
 753     msg_Dbg( p_this, "Playing...");
 754     p_sys->p_control->Run();
 755
 756     return VLC_SUCCESS;
 757 }
 758
 759 /*****************************************************************************
 760  * CommonClose: close device
 761  *****************************************************************************/
 762 static void CommonClose( vlc_object_t *p_this, access_sys_t *p_sys )
 763 {
 764     msg_Dbg( p_this, "releasing DirectShow");
 765
 766     DeleteDirectShowGraph( p_sys );
 767
 768     /* Uninitialize OLE/COM */
 769     CoUninitialize();
 770
 771     for( int i = 0; i < p_sys->i_streams; i++ ) delete p_sys->pp_streams[i];
 772     if( p_sys->i_streams ) free( p_sys->pp_streams );
 773
 774     vlc_mutex_destroy( &p_sys->lock );
 775     vlc_cond_destroy( &p_sys->wait );
 776
 777     free( p_sys );
 778 }
 779
 780 /*****************************************************************************
 781  * AccessClose: close device
 782  *****************************************************************************/
 783 static void AccessClose( vlc_object_t *p_this )
 784 {
 785     access_t     *p_access = (access_t *)p_this;
 786     access_sys_t *p_sys    = p_access->p_sys;
 787
 788     /* Stop capturing stuff */
 789     p_sys->p_control->Stop();
 790
 791     CommonClose( p_this, p_sys );
 792 }
 793
 794 /*****************************************************************************
 795  * DemuxClose: close device
 796  *****************************************************************************/
 797 static void DemuxClose( vlc_object_t *p_this )
 798 {
 799     demux_t      *p_demux = (demux_t *)p_this;
 800     access_sys_t *p_sys   = (access_sys_t *)p_demux->p_sys;
 801
 802     /* Stop capturing stuff */
 803     p_sys->p_control->Stop();
 804
 805     CommonClose( p_this, p_sys );
 806 }
 807
 808 /****************************************************************************
 809  * ConnectFilters
 810  ****************************************************************************/
 811 static bool ConnectFilters( vlc_object_t *p_this, access_sys_t *p_sys,
 812                             IBaseFilter *p_filter,
 813                             CaptureFilter *p_capture_filter )
 814 {
 815     CapturePin *p_input_pin = p_capture_filter->CustomGetPin();
 816
 817     AM_MEDIA_TYPE mediaType = p_input_pin->CustomGetMediaType();
 818
 819     if( p_sys->p_capture_graph_builder2 )
 820     {
 821         if( FAILED(p_sys->p_capture_graph_builder2->
 822                 RenderStream( &PIN_CATEGORY_CAPTURE, &mediaType.majortype,
 823                               p_filter, 0, (IBaseFilter *)p_capture_filter )) )
 824         {
 825             return false;
 826         }
 827
 828         // Sort out all the possible video inputs
 829         // The class needs to be given the capture filters ANALOGVIDEO input pin
 830         IEnumPins *pins = NULL;
 831         if( ( mediaType.majortype == MEDIATYPE_Video ||
 832               mediaType.majortype == MEDIATYPE_Stream ) &&
 833             SUCCEEDED(p_filter->EnumPins(&pins)) )
 834         {
 835             IPin        *pP = NULL;
 836             ULONG        n;
 837             PIN_INFO     pinInfo;
 838             BOOL         Found = FALSE;
 839             IKsPropertySet *pKs = NULL;
 840             GUID guid;
 841             DWORD dw;
 842
 843             while( !Found && ( S_OK == pins->Next(1, &pP, &n) ) )
 844             {
 845                 if( S_OK == pP->QueryPinInfo(&pinInfo) )
 846                 {
 847                     // is this pin an ANALOGVIDEOIN input pin?
 848                     if( pinInfo.dir == PINDIR_INPUT &&
 849                         pP->QueryInterface( IID_IKsPropertySet,
 850                                             (void **)&pKs ) == S_OK )
 851                     {
 852                         if( pKs->Get( AMPROPSETID_Pin,
 853                                       AMPROPERTY_PIN_CATEGORY, NULL, 0,
 854                                       &guid, sizeof(GUID), &dw ) == S_OK )
 855                         {
 856                             if( guid == PIN_CATEGORY_ANALOGVIDEOIN )
 857                             {
 858                                 // recursively search crossbar routes
 859                                 FindCrossbarRoutes( p_this, p_sys, pP, 0 );
 860                                 // found it
 861                                 Found = TRUE;
 862                             }
 863                         }
 864                         pKs->Release();
 865                     }
 866                     pinInfo.pFilter->Release();
 867                 }
 868                 pP->Release();
 869             }
 870             pins->Release();
 871             msg_Dbg( p_this, "ConnectFilters: graph_builder2 available.") ;
 872             if ( !Found )
 873                 msg_Warn( p_this, "ConnectFilters: No crossBar routes found (incobatible pin types)" ) ;
 874         }
 875         return true;
 876     }
 877     else
 878     {
 879         IEnumPins *p_enumpins;
 880         IPin *p_pin;
 881
 882         if( S_OK != p_filter->EnumPins( &p_enumpins ) ) return false;
 883
 884         while( S_OK == p_enumpins->Next( 1, &p_pin, NULL ) )
 885         {
 886             PIN_DIRECTION pin_dir;
 887             p_pin->QueryDirection( &pin_dir );
 888
 889             if( pin_dir == PINDIR_OUTPUT &&
 890                 p_sys->p_graph->ConnectDirect( p_pin, (IPin *)p_input_pin,
 891                                                0 ) == S_OK )
 892             {
 893                 p_pin->Release();
 894                 p_enumpins->Release();
 895                 return true;
 896             }
 897             p_pin->Release();
 898         }
 899
 900         p_enumpins->Release();
 901         return false;
 902     }
 903 }
 904
 905 /*
 906  * get fourcc priority from arbritary preference, the higher the better
 907  */
 908 static int GetFourCCPriority( int i_fourcc )
 909 {
 910     switch( i_fourcc )
 911     {
 912     case VLC_CODEC_I420:
 913     case VLC_CODEC_FL32:
 914         return 9;
 915     case VLC_CODEC_YV12:
 916     case VLC_FOURCC('a','r','a','w'):
 917         return 8;
 918     case VLC_CODEC_RGB24:
 919         return 7;
 920     case VLC_CODEC_YUYV:
 921     case VLC_CODEC_RGB32:
 922     case VLC_CODEC_RGBA:
 923         return 6;
 924     }
 925
 926     return 0;
 927 }
 928
 929 #define MAX_MEDIA_TYPES 32
 930
 931 static int OpenDevice( vlc_object_t *p_this, access_sys_t *p_sys,
 932                        string devicename, bool b_audio )
 933 {
 934     /* See if device is already opened */
 935     for( int i = 0; i < p_sys->i_streams; i++ )
 936     {
 937         if( devicename.size() &&
 938             p_sys->pp_streams[i]->devicename == devicename )
 939         {
 940             /* Already opened */
 941             return VLC_SUCCESS;
 942         }
 943     }
 944
 945     list<string> list_devices;
 946
 947     /* Enumerate devices and display their names */
 948     FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
 949     if( !list_devices.size() )
 950         return VLC_EGENERIC;
 951
 952     list<string>::iterator iter;
 953     for( iter = list_devices.begin(); iter != list_devices.end(); iter++ )
 954         msg_Dbg( p_this, "found device: %s", iter->c_str() );
 955
 956     /* If no device name was specified, pick the 1st one */
 957     if( devicename.size() == 0 )
 958     {
 959         /* When none selected */
 960         devicename = *list_devices.begin();
 961         msg_Dbg( p_this, "asking for default device: %s", devicename.c_str() ) ;
 962     }
 963     else
 964         msg_Dbg( p_this, "asking for device: %s", devicename.c_str() ) ;
 965     // Use the system device enumerator and class enumerator to find
 966     // a capture/preview device, such as a desktop USB video camera.
 967     IBaseFilter *p_device_filter =
 968         FindCaptureDevice( p_this, &devicename, NULL, b_audio );
 969
 970     if( p_device_filter )
 971         msg_Dbg( p_this, "using device: %s", devicename.c_str() );
 972     else
 973     {
 974         msg_Err( p_this, "can't use device: %s, unsupported device type",
 975                  devicename.c_str() );
 976         dialog_Fatal( p_this, _("Capture failed"),
 977                         _("VLC cannot use the device \"%s\", because its "
 978                           "type is not supported."), devicename.c_str() );
 979         return VLC_EGENERIC;
 980     }
 981
 982     // Retreive acceptable media types supported by device
 983     AM_MEDIA_TYPE media_types[MAX_MEDIA_TYPES];
 984     size_t media_count =
 985         EnumDeviceCaps( p_this, p_device_filter, b_audio ? 0 : p_sys->i_chroma,
 986                         p_sys->i_width, p_sys->i_height,
 987       b_audio ? var_CreateGetInteger( p_this, "dshow-audio-channels" ) : 0,
 988       b_audio ? var_CreateGetInteger( p_this, "dshow-audio-samplerate" ) : 0,
 989       b_audio ? var_CreateGetInteger( p_this, "dshow-audio-bitspersample" ) : 0,
 990       media_types, MAX_MEDIA_TYPES );
 991
 992     AM_MEDIA_TYPE *mt = NULL;
 993
 994     if( media_count > 0 )
 995     {
 996         mt = (AM_MEDIA_TYPE *)CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE) * media_count);
 997
 998         // Order and copy returned media types according to arbitrary
 999         // fourcc priority
1000         for( size_t c = 0; c < media_count; c++ )
1001         {
1002             int slot_priority =
1003                 GetFourCCPriority(GetFourCCFromMediaType(media_types[c]));
1004             size_t slot_copy = c;
1005             for( size_t d = c+1; d < media_count; d++ )
1006             {
1007                 int priority =
1008                     GetFourCCPriority(GetFourCCFromMediaType(media_types[d]));
1009                 if( priority > slot_priority )
1010                 {
1011                     slot_priority = priority;
1012                     slot_copy = d;
1013                 }
1014             }
1015             if( slot_copy != c )
1016             {
1017                 mt[c] = media_types[slot_copy];
1018                 media_types[slot_copy] = media_types[c];
1019             }
1020             else
1021             {
1022                 mt[c] = media_types[c];
1023             }
1024         }
1025     }
1026     else {
1027         /* capture device */
1028         msg_Err( p_this, "capture device '%s' does not support required parameters !", devicename.c_str() );
1029         dialog_Fatal( p_this, _("Capture failed"),
1030                         _("The capture device \"%s\" does not support the "
1031                           "required parameters."), devicename.c_str() );
1032         p_device_filter->Release();
1033         return VLC_EGENERIC;
1034     }
1035
1036     /* Create and add our capture filter */
1037     CaptureFilter *p_capture_filter =
1038         new CaptureFilter( p_this, p_sys, mt, media_count );
1039     p_sys->p_graph->AddFilter( p_capture_filter, 0 );
1040
1041     /* Add the device filter to the graph (seems necessary with VfW before
1042      * accessing pin attributes). */
1043     p_sys->p_graph->AddFilter( p_device_filter, 0 );
1044
1045     /* Attempt to connect one of this device's capture output pins */
1046     msg_Dbg( p_this, "connecting filters" );
1047     if( ConnectFilters( p_this, p_sys, p_device_filter, p_capture_filter ) )
1048     {
1049         /* Success */
1050         msg_Dbg( p_this, "filters connected successfully !" );
1051
1052         dshow_stream_t dshow_stream;
1053         dshow_stream.b_pts = false;
1054         dshow_stream.p_es = 0;
1055         dshow_stream.mt =
1056             p_capture_filter->CustomGetPin()->CustomGetMediaType();
1057
1058         /* Show Device properties. Done here so the VLC stream is setup with
1059          * the proper parameters. */
1060         vlc_value_t val;
1061         var_Get( p_this, "dshow-config", &val );
1062         if( val.b_bool )
1063         {
1064             ShowDeviceProperties( p_this, p_sys->p_capture_graph_builder2,
1065                                   p_device_filter, b_audio );
1066         }
1067
1068         ConfigTuner( p_this, p_sys->p_capture_graph_builder2,
1069                      p_device_filter );
1070
1071         var_Get( p_this, "dshow-tuner", &val );
1072         if( val.b_bool && dshow_stream.mt.majortype != MEDIATYPE_Stream )
1073         {
1074             /* FIXME: we do MEDIATYPE_Stream later so we don't do it twice. */
1075             ShowTunerProperties( p_this, p_sys->p_capture_graph_builder2,
1076                                  p_device_filter, b_audio );
1077         }
1078
1079         dshow_stream.mt =
1080             p_capture_filter->CustomGetPin()->CustomGetMediaType();
1081
1082         dshow_stream.i_fourcc = GetFourCCFromMediaType( dshow_stream.mt );
1083         if( dshow_stream.i_fourcc )
1084         {
1085             if( dshow_stream.mt.majortype == MEDIATYPE_Video )
1086             {
1087                 dshow_stream.header.video =
1088                     *(VIDEOINFOHEADER *)dshow_stream.mt.pbFormat;
1089                 msg_Dbg( p_this, "MEDIATYPE_Video" );
1090                 msg_Dbg( p_this, "selected video pin accepts format: %4.4s",
1091                          (char *)&dshow_stream.i_fourcc);
1092             }
1093             else if( dshow_stream.mt.majortype == MEDIATYPE_Audio )
1094             {
1095                 dshow_stream.header.audio =
1096                     *(WAVEFORMATEX *)dshow_stream.mt.pbFormat;
1097                 msg_Dbg( p_this, "MEDIATYPE_Audio" );
1098                 msg_Dbg( p_this, "selected audio pin accepts format: %4.4s",
1099                          (char *)&dshow_stream.i_fourcc);
1100             }
1101             else if( dshow_stream.mt.majortype == MEDIATYPE_Stream )
1102             {
1103                 msg_Dbg( p_this, "MEDIATYPE_Stream" );
1104                 msg_Dbg( p_this, "selected stream pin accepts format: %4.4s",
1105                          (char *)&dshow_stream.i_fourcc);
1106             }
1107             else
1108             {
1109                 msg_Dbg( p_this, "unknown stream majortype" );
1110                 goto fail;
1111             }
1112
1113             /* Add directshow elementary stream to our list */
1114             dshow_stream.p_device_filter = p_device_filter;
1115             dshow_stream.p_capture_filter = p_capture_filter;
1116
1117             p_sys->pp_streams = (dshow_stream_t **)realloc( p_sys->pp_streams,
1118                 sizeof(dshow_stream_t *) * (p_sys->i_streams + 1) );
1119             p_sys->pp_streams[p_sys->i_streams] = new dshow_stream_t;
1120             *p_sys->pp_streams[p_sys->i_streams++] = dshow_stream;
1121
1122             return VLC_SUCCESS;
1123         }
1124     }
1125
1126  fail:
1127     /* Remove filters from graph */
1128     p_sys->p_graph->RemoveFilter( p_device_filter );
1129     p_sys->p_graph->RemoveFilter( p_capture_filter );
1130
1131     /* Release objects */
1132     p_device_filter->Release();
1133     p_capture_filter->Release();
1134
1135     return VLC_EGENERIC;
1136 }
1137
1138 /* FindCaptureDevices:: This Function had two purposes :
1139     Returns the list of capture devices when p_listdevices != NULL
1140     Creates an IBaseFilter when p_devicename corresponds to an existing devname
1141    These actions *may* be requested whith a single call.
1142 */
1143 static IBaseFilter *
1144 FindCaptureDevice( vlc_object_t *p_this, string *p_devicename,
1145                    list<string> *p_listdevices, bool b_audio )
1146 {
1147     IBaseFilter *p_base_filter = NULL;
1148     IMoniker *p_moniker = NULL;
1149     ULONG i_fetched;
1150     HRESULT hr;
1151     list<string> devicelist;
1152
1153     /* Create the system device enumerator */
1154     ICreateDevEnum *p_dev_enum = NULL;
1155
1156     hr = CoCreateInstance( CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC,
1157                            IID_ICreateDevEnum, (void **)&p_dev_enum );
1158     if( FAILED(hr) )
1159     {
1160         msg_Err( p_this, "failed to create the device enumerator (0x%lx)", hr);
1161         return NULL;
1162     }
1163
1164     /* Create an enumerator for the video capture devices */
1165     IEnumMoniker *p_class_enum = NULL;
1166     if( !b_audio )
1167         hr = p_dev_enum->CreateClassEnumerator( CLSID_VideoInputDeviceCategory,
1168                                                 &p_class_enum, 0 );
1169     else
1170         hr = p_dev_enum->CreateClassEnumerator( CLSID_AudioInputDeviceCategory,
1171                                                 &p_class_enum, 0 );
1172     p_dev_enum->Release();
1173     if( FAILED(hr) )
1174     {
1175         msg_Err( p_this, "failed to create the class enumerator (0x%lx)", hr );
1176         return NULL;
1177     }
1178
1179     /* If there are no enumerators for the requested type, then
1180      * CreateClassEnumerator will succeed, but p_class_enum will be NULL */
1181     if( p_class_enum == NULL )
1182     {
1183         msg_Err( p_this, "no %s capture device was detected", ( b_audio ? "audio" : "video" ) );
1184         return NULL;
1185     }
1186
1187     /* Enumerate the devices */
1188
1189     /* Note that if the Next() call succeeds but there are no monikers,
1190      * it will return S_FALSE (which is not a failure). Therefore, we check
1191      * that the return code is S_OK instead of using SUCCEEDED() macro. */
1192
1193     while( p_class_enum->Next( 1, &p_moniker, &i_fetched ) == S_OK )
1194     {
1195         /* Getting the property page to get the device name */
1196         IPropertyBag *p_bag;
1197         hr = p_moniker->BindToStorage( 0, 0, IID_IPropertyBag,
1198                                        (void **)&p_bag );
1199         if( SUCCEEDED(hr) )
1200         {
1201             VARIANT var;
1202             var.vt = VT_BSTR;
1203             hr = p_bag->Read( L"FriendlyName", &var, NULL );
1204             p_bag->Release();
1205             if( SUCCEEDED(hr) )
1206             {
1207                 char *p_buf = FromWide( var.bstrVal );
1208                 string devname = string(p_buf);
1209                 free( p_buf) ;
1210
1211                 int dup = 0;
1212                 /* find out if this name is already used by a previously found device */
1213                 list<string>::const_iterator iter = devicelist.begin();
1214                 list<string>::const_iterator end = devicelist.end();
1215                 string ordevname = devname ;
1216                 while ( iter != end )
1217                 {
1218                     if( 0 == (*iter).compare( devname ) )
1219                     { /* devname is on the list. Try another name with sequence
1220                          number apended and then rescan until a unique entry is found*/
1221                          char seq[16];
1222                          snprintf(seq, 16, " #%d", ++dup);
1223                          devname = ordevname + seq;
1224                          iter = devicelist.begin();
1225                     }
1226                     else
1227                          ++iter;
1228                 }
1229                 devicelist.push_back( devname );
1230
1231                 if( p_devicename && *p_devicename == devname )
1232                 {
1233                     msg_Dbg( p_this, "asked for %s, binding to %s", p_devicename->c_str() , devname.c_str() ) ;
1234                     /* NULL possibly means we don't need BindMoniker BindCtx ?? */
1235                     hr = p_moniker->BindToObject( NULL, 0, IID_IBaseFilter,
1236                                                   (void **)&p_base_filter );
1237                     if( FAILED(hr) )
1238                     {
1239                         msg_Err( p_this, "couldn't bind moniker to filter "
1240                                  "object (0x%lx)", hr );
1241                         p_moniker->Release();
1242                         p_class_enum->Release();
1243                         return NULL;
1244                     }
1245                     p_moniker->Release();
1246                     p_class_enum->Release();
1247                     return p_base_filter;
1248                 }
1249             }
1250         }
1251
1252         p_moniker->Release();
1253     }
1254
1255     p_class_enum->Release();
1256
1257     if( p_listdevices ) {
1258     devicelist.sort();
1259     *p_listdevices = devicelist;
1260     }
1261     return NULL;
1262 }
1263
1264 static size_t EnumDeviceCaps( vlc_object_t *p_this, IBaseFilter *p_filter,
1265                               int i_fourcc, int i_width, int i_height,
1266                               int i_channels, int i_samplespersec,
1267                               int i_bitspersample, AM_MEDIA_TYPE *mt,
1268                               size_t mt_max )
1269 {
1270     IEnumPins *p_enumpins;
1271     IPin *p_output_pin;
1272     IEnumMediaTypes *p_enummt;
1273     size_t mt_count = 0;
1274
1275     LONGLONG i_AvgTimePerFrame = 0;
1276     float r_fps = var_GetFloat( p_this, "dshow-fps" );
1277     if( r_fps )
1278         i_AvgTimePerFrame = 10000000000LL/(LONGLONG)(r_fps*1000.0f);
1279
1280     if( FAILED(p_filter->EnumPins( &p_enumpins )) )
1281     {
1282         msg_Dbg( p_this, "EnumDeviceCaps failed: no pin enumeration !");
1283         return 0;
1284     }
1285
1286     while( S_OK == p_enumpins->Next( 1, &p_output_pin, NULL ) )
1287     {
1288         PIN_INFO info;
1289
1290         if( S_OK == p_output_pin->QueryPinInfo( &info ) )
1291         {
1292             msg_Dbg( p_this, "EnumDeviceCaps: %s pin: %S",
1293                      info.dir == PINDIR_INPUT ? "input" : "output",
1294                      info.achName );
1295             if( info.pFilter ) info.pFilter->Release();
1296         }
1297
1298         p_output_pin->Release();
1299     }
1300
1301     p_enumpins->Reset();
1302
1303     while( !mt_count && p_enumpins->Next( 1, &p_output_pin, NULL ) == S_OK )
1304     {
1305         PIN_INFO info;
1306
1307         if( S_OK == p_output_pin->QueryPinInfo( &info ) )
1308         {
1309             if( info.pFilter ) info.pFilter->Release();
1310             if( info.dir == PINDIR_INPUT )
1311             {
1312                 p_output_pin->Release();
1313                 continue;
1314             }
1315             msg_Dbg( p_this, "EnumDeviceCaps: trying pin %S", info.achName );
1316         }
1317
1318         AM_MEDIA_TYPE *p_mt;
1319
1320         /*
1321         ** Configure pin with a default compatible media if possible
1322         */
1323
1324         IAMStreamConfig *pSC;
1325         if( SUCCEEDED(p_output_pin->QueryInterface( IID_IAMStreamConfig,
1326                                             (void **)&pSC )) )
1327         {
1328             int piCount, piSize;
1329             if( SUCCEEDED(pSC->GetNumberOfCapabilities(&piCount, &piSize)) )
1330             {
1331                 BYTE *pSCC= (BYTE *)CoTaskMemAlloc(piSize);
1332                 if( NULL != pSCC )
1333                 {
1334                     int i_priority = -1;
1335                     for( int i=0; i<piCount; ++i )
1336                     {
1337                         if( SUCCEEDED(pSC->GetStreamCaps(i, &p_mt, pSCC)) )
1338                         {
1339                             int i_current_fourcc = GetFourCCFromMediaType( *p_mt );
1340                             int i_current_priority = GetFourCCPriority(i_current_fourcc);
1341
1342                             if( (i_fourcc && (i_current_fourcc != i_fourcc))
1343                              || (i_priority > i_current_priority) )
1344                             {
1345                                 // unwanted chroma, try next media type
1346                                 FreeMediaType( *p_mt );
1347                                 CoTaskMemFree( (PVOID)p_mt );
1348                                 continue;
1349                             }
1350
1351                             if( MEDIATYPE_Video == p_mt->majortype
1352                                     && FORMAT_VideoInfo == p_mt->formattype )
1353                             {
1354                                 VIDEO_STREAM_CONFIG_CAPS *pVSCC = reinterpret_cast<VIDEO_STREAM_CONFIG_CAPS*>(pSCC);
1355                                 VIDEOINFOHEADER *pVih = reinterpret_cast<VIDEOINFOHEADER*>(p_mt->pbFormat);
1356
1357                                 if( i_AvgTimePerFrame )
1358                                 {
1359                                     if( pVSCC->MinFrameInterval > i_AvgTimePerFrame
1360                                       || i_AvgTimePerFrame > pVSCC->MaxFrameInterval )
1361                                     {
1362                                         // required frame rate not compatible, try next media type
1363                                         FreeMediaType( *p_mt );
1364                                         CoTaskMemFree( (PVOID)p_mt );
1365                                         continue;
1366                                     }
1367                                     pVih->AvgTimePerFrame = i_AvgTimePerFrame;
1368                                 }
1369
1370                                 if( i_width )
1371                                 {
1372                                     if((   !pVSCC->OutputGranularityX
1373                                            && i_width != pVSCC->MinOutputSize.cx
1374                                            && i_width != pVSCC->MaxOutputSize.cx)
1375                                        ||
1376                                        (   pVSCC->OutputGranularityX
1377                                            && ((i_width % pVSCC->OutputGranularityX)
1378                                                || pVSCC->MinOutputSize.cx > i_width
1379                                                || i_width > pVSCC->MaxOutputSize.cx )))
1380                                     {
1381                                         // required width not compatible, try next media type
1382                                         FreeMediaType( *p_mt );
1383                                         CoTaskMemFree( (PVOID)p_mt );
1384                                         continue;
1385                                     }
1386                                     pVih->bmiHeader.biWidth = i_width;
1387                                 }
1388
1389                                 if( i_height )
1390                                 {
1391                                     if((   !pVSCC->OutputGranularityY
1392                                            && i_height != pVSCC->MinOutputSize.cy
1393                                            && i_height != pVSCC->MaxOutputSize.cy)
1394                                        ||
1395                                        (   pVSCC->OutputGranularityY
1396                                            && ((i_height % pVSCC->OutputGranularityY)
1397                                                || pVSCC->MinOutputSize.cy > i_height
1398                                                || i_height > pVSCC->MaxOutputSize.cy )))
1399                                     {
1400                                         // required height not compatible, try next media type
1401                                         FreeMediaType( *p_mt );
1402                                         CoTaskMemFree( (PVOID)p_mt );
1403                                         continue;
1404                                     }
1405                                     pVih->bmiHeader.biHeight = i_height;
1406                                 }
1407
1408                                 // Set the sample size and image size.
1409                                 // (Round the image width up to a DWORD boundary.)
1410                                 p_mt->lSampleSize = pVih->bmiHeader.biSizeImage =
1411                                     ((pVih->bmiHeader.biWidth + 3) & ~3) *
1412                                     pVih->bmiHeader.biHeight * (pVih->bmiHeader.biBitCount>>3);
1413
1414                                 // no cropping, use full video input buffer
1415                                 memset(&(pVih->rcSource), 0, sizeof(RECT));
1416                                 memset(&(pVih->rcTarget), 0, sizeof(RECT));
1417
1418                                 // select this format as default
1419                                 if( SUCCEEDED( pSC->SetFormat(p_mt) ) )
1420                                 {
1421                                     i_priority = i_current_priority;
1422                                     if( i_fourcc )
1423                                         // no need to check any more media types
1424                                         i = piCount;
1425                                 }
1426                             }
1427                             else if( p_mt->majortype == MEDIATYPE_Audio
1428                                     && p_mt->formattype == FORMAT_WaveFormatEx )
1429                             {
1430                                 AUDIO_STREAM_CONFIG_CAPS *pASCC = reinterpret_cast<AUDIO_STREAM_CONFIG_CAPS*>(pSCC);
1431                                 WAVEFORMATEX *pWfx = reinterpret_cast<WAVEFORMATEX*>(p_mt->pbFormat);
1432
1433                                 if( i_current_fourcc && (WAVE_FORMAT_PCM == pWfx->wFormatTag) )
1434                                 {
1435                                     int val = i_channels;
1436                                     if( ! val )
1437                                         val = 2;
1438
1439                                     if( (   !pASCC->ChannelsGranularity
1440                                             && (unsigned int)val != pASCC->MinimumChannels
1441                                             && (unsigned int)val != pASCC->MaximumChannels)
1442                                         ||
1443                                         (   pASCC->ChannelsGranularity
1444                                             && ((val % pASCC->ChannelsGranularity)
1445                                                 || (unsigned int)val < pASCC->MinimumChannels
1446                                                 || (unsigned int)val > pASCC->MaximumChannels)))
1447                                     {
1448                                         // required number channels not available, try next media type
1449                                         FreeMediaType( *p_mt );
1450                                         CoTaskMemFree( (PVOID)p_mt );
1451                                         continue;
1452                                     }
1453                                     pWfx->nChannels = val;
1454
1455                                     val = i_samplespersec;
1456                                     if( ! val )
1457                                         val = 44100;
1458
1459                                     if( (   !pASCC->SampleFrequencyGranularity
1460                                             && (unsigned int)val != pASCC->MinimumSampleFrequency
1461                                             && (unsigned int)val != pASCC->MaximumSampleFrequency)
1462                                         ||
1463                                         (   pASCC->SampleFrequencyGranularity
1464                                             && ((val % pASCC->SampleFrequencyGranularity)
1465                                                 || (unsigned int)val < pASCC->MinimumSampleFrequency
1466                                                 || (unsigned int)val > pASCC->MaximumSampleFrequency )))
1467                                     {
1468                                         // required sampling rate not available, try next media type
1469                                         FreeMediaType( *p_mt );
1470                                         CoTaskMemFree( (PVOID)p_mt );
1471                                         continue;
1472                                     }
1473                                     pWfx->nSamplesPerSec = val;
1474
1475                                     val = i_bitspersample;
1476                                     if( ! val )
1477                                     {
1478                                         if( VLC_CODEC_FL32 == i_current_fourcc )
1479                                             val = 32;
1480                                         else
1481                                             val = 16;
1482                                     }
1483
1484                                     if( (   !pASCC->BitsPerSampleGranularity
1485                                             && (unsigned int)val != pASCC->MinimumBitsPerSample
1486                                             &&  (unsigned int)val != pASCC->MaximumBitsPerSample )
1487                                         ||
1488                                         (   pASCC->BitsPerSampleGranularity
1489                                             && ((val % pASCC->BitsPerSampleGranularity)
1490                                                 || (unsigned int)val < pASCC->MinimumBitsPerSample
1491                                                 || (unsigned int)val > pASCC->MaximumBitsPerSample )))
1492                                     {
1493                                         // required sample size not available, try next media type
1494                                         FreeMediaType( *p_mt );
1495                                         CoTaskMemFree( (PVOID)p_mt );
1496                                         continue;
1497                                     }
1498
1499                                     pWfx->wBitsPerSample = val;
1500                                     pWfx->nBlockAlign = (pWfx->wBitsPerSample * pWfx->nChannels)/8;
1501                                     pWfx->nAvgBytesPerSec = pWfx->nSamplesPerSec * pWfx->nBlockAlign;
1502
1503                                     // select this format as default
1504                                     if( SUCCEEDED( pSC->SetFormat(p_mt) ) )
1505                                     {
1506                                         i_priority = i_current_priority;
1507                                     }
1508                                 }
1509                             }
1510                             FreeMediaType( *p_mt );
1511                             CoTaskMemFree( (PVOID)p_mt );
1512                         }
1513                     }
1514                     CoTaskMemFree( (LPVOID)pSCC );
1515                     if( i_priority >= 0 )
1516                         msg_Dbg( p_this, "EnumDeviceCaps: input pin default format configured");
1517                 }
1518             }
1519             pSC->Release();
1520         }
1521
1522         /*
1523         ** Probe pin for available medias (may be a previously configured one)
1524         */
1525
1526         if( FAILED( p_output_pin->EnumMediaTypes( &p_enummt ) ) )
1527         {
1528             p_output_pin->Release();
1529             continue;
1530         }
1531
1532         while( p_enummt->Next( 1, &p_mt, NULL ) == S_OK )
1533         {
1534             int i_current_fourcc = GetFourCCFromMediaType( *p_mt );
1535             if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Video
1536                 && p_mt->formattype == FORMAT_VideoInfo )
1537             {
1538                 int i_current_width = ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biWidth;
1539                 int i_current_height = ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biHeight;
1540                 LONGLONG i_current_atpf = ((VIDEOINFOHEADER *)p_mt->pbFormat)->AvgTimePerFrame;
1541
1542                 if( i_current_height < 0 )
1543                     i_current_height = -i_current_height;
1544
1545                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
1546                          "accepts chroma: %4.4s, width:%i, height:%i, fps:%f",
1547                          (char *)&i_current_fourcc, i_current_width,
1548                          i_current_height, (10000000.0f/((float)i_current_atpf)) );
1549
1550                 if( ( !i_fourcc || i_fourcc == i_current_fourcc ) &&
1551                     ( !i_width || i_width == i_current_width ) &&
1552                     ( !i_height || i_height == i_current_height ) &&
1553                     ( !i_AvgTimePerFrame || i_AvgTimePerFrame == i_current_atpf ) &&
1554                     mt_count < mt_max )
1555                 {
1556                     /* Pick match */
1557                     mt[mt_count++] = *p_mt;
1558                 }
1559                 else FreeMediaType( *p_mt );
1560             }
1561             else if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Audio
1562                     && p_mt->formattype == FORMAT_WaveFormatEx)
1563             {
1564                 int i_current_channels =
1565                     ((WAVEFORMATEX *)p_mt->pbFormat)->nChannels;
1566                 int i_current_samplespersec =
1567                     ((WAVEFORMATEX *)p_mt->pbFormat)->nSamplesPerSec;
1568                 int i_current_bitspersample =
1569                     ((WAVEFORMATEX *)p_mt->pbFormat)->wBitsPerSample;
1570
1571                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
1572                          "accepts format: %4.4s, channels:%i, "
1573                          "samples/sec:%i bits/sample:%i",
1574                          (char *)&i_current_fourcc, i_current_channels,
1575                          i_current_samplespersec, i_current_bitspersample);
1576
1577                 if( (!i_channels || i_channels == i_current_channels) &&
1578                     (!i_samplespersec ||
1579                      i_samplespersec == i_current_samplespersec) &&
1580                     (!i_bitspersample ||
1581                      i_bitspersample == i_current_bitspersample) &&
1582                     mt_count < mt_max )
1583                 {
1584                     /* Pick  match */
1585                     mt[mt_count++] = *p_mt;
1586
1587                     /* Setup a few properties like the audio latency */
1588                     IAMBufferNegotiation *p_ambuf;
1589                     if( SUCCEEDED( p_output_pin->QueryInterface(
1590                           IID_IAMBufferNegotiation, (void **)&p_ambuf ) ) )
1591                     {
1592                         ALLOCATOR_PROPERTIES AllocProp;
1593                         AllocProp.cbAlign = -1;
1594
1595                         /* 100 ms of latency */
1596                         AllocProp.cbBuffer = i_current_channels *
1597                           i_current_samplespersec *
1598                           i_current_bitspersample / 8 / 10;
1599
1600                         AllocProp.cbPrefix = -1;
1601                         AllocProp.cBuffers = -1;
1602                         p_ambuf->SuggestAllocatorProperties( &AllocProp );
1603                         p_ambuf->Release();
1604                     }
1605                 }
1606                 else FreeMediaType( *p_mt );
1607             }
1608             else if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Stream )
1609             {
1610                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
1611                          "accepts stream format: %4.4s",
1612                          (char *)&i_current_fourcc );
1613
1614                 if( ( !i_fourcc || i_fourcc == i_current_fourcc ) &&
1615                     mt_count < mt_max )
1616                 {
1617                     /* Pick match */
1618                     mt[mt_count++] = *p_mt;
1619                     i_fourcc = i_current_fourcc;
1620                 }
1621                 else FreeMediaType( *p_mt );
1622             }
1623             else
1624             {
1625                 const char * psz_type = "unknown";
1626                 if( p_mt->majortype == MEDIATYPE_Video ) psz_type = "video";
1627                 if( p_mt->majortype == MEDIATYPE_Audio ) psz_type = "audio";
1628                 if( p_mt->majortype == MEDIATYPE_Stream ) psz_type = "stream";
1629                 msg_Dbg( p_this, "EnumDeviceCaps: input pin media: unsupported format "
1630                          "(%s %4.4s)", psz_type, (char *)&p_mt->subtype );
1631
1632                 FreeMediaType( *p_mt );
1633             }
1634             CoTaskMemFree( (PVOID)p_mt );
1635         }
1636
1637         if( !mt_count && p_enummt->Reset() == S_OK )
1638         {
1639             // VLC did not find any supported MEDIATYPE for this output pin.
1640             // However the graph builder might insert converter filters in
1641             // the graph if we use a different codec in VLC filter input pin.
1642             // however, in order to avoid nasty surprises, make use of this
1643             // facility only for known unsupported codecs.
1644
1645             while( !mt_count && p_enummt->Next( 1, &p_mt, NULL ) == S_OK )
1646             {
1647                 // the first four bytes of subtype GUID contains the codec FOURCC
1648                 const char *pfcc = (char *)&p_mt->subtype;
1649                 int i_current_fourcc = VLC_FOURCC(pfcc[0], pfcc[1], pfcc[2], pfcc[3]);
1650                 if( VLC_FOURCC('H','C','W','2') == i_current_fourcc
1651                  && p_mt->majortype == MEDIATYPE_Video )
1652                 {
1653                     // output format for 'Hauppauge WinTV PVR PCI II Capture'
1654                     // try I420 as an input format
1655                     i_current_fourcc = VLC_CODEC_I420;
1656                     if( !i_fourcc || i_fourcc == i_current_fourcc )
1657                     {
1658                         // return alternative media type
1659                         AM_MEDIA_TYPE mtr;
1660                         VIDEOINFOHEADER vh;
1661
1662                         mtr.majortype            = MEDIATYPE_Video;
1663                         mtr.subtype              = MEDIASUBTYPE_I420;
1664                         mtr.bFixedSizeSamples    = TRUE;
1665                         mtr.bTemporalCompression = FALSE;
1666                         mtr.pUnk                 = NULL;
1667                         mtr.formattype           = FORMAT_VideoInfo;
1668                         mtr.cbFormat             = sizeof(vh);
1669                         mtr.pbFormat             = (BYTE *)&vh;
1670
1671                         memset(&vh, 0, sizeof(vh));
1672
1673                         vh.bmiHeader.biSize   = sizeof(vh.bmiHeader);
1674                         vh.bmiHeader.biWidth  = i_width > 0 ? i_width :
1675                             ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biWidth;
1676                         vh.bmiHeader.biHeight = i_height > 0 ? i_height :
1677                             ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biHeight;
1678                         vh.bmiHeader.biPlanes      = 3;
1679                         vh.bmiHeader.biBitCount    = 12;
1680                         vh.bmiHeader.biCompression = VLC_CODEC_I420;
1681                         vh.bmiHeader.biSizeImage   = vh.bmiHeader.biWidth * 12 *
1682                             vh.bmiHeader.biHeight / 8;
1683                         mtr.lSampleSize            = vh.bmiHeader.biSizeImage;
1684
1685                         msg_Dbg( p_this, "EnumDeviceCaps: input pin media: using 'I420' in place of unsupported format 'HCW2'");
1686
1687                         if( SUCCEEDED(CopyMediaType(mt+mt_count, &mtr)) )
1688                             ++mt_count;
1689                     }
1690                 }
1691                 FreeMediaType( *p_mt );
1692             }
1693         }
1694
1695         p_enummt->Release();
1696         p_output_pin->Release();
1697     }
1698
1699     p_enumpins->Release();
1700     return mt_count;
1701 }
1702
1703 /*****************************************************************************
1704  * ReadCompressed: reads compressed (MPEG/DV) data from the device.
1705  *****************************************************************************
1706  * Returns -1 in case of error, 0 in case of EOF, otherwise the number of
1707  * bytes.
1708  *****************************************************************************/
1709 static block_t *ReadCompressed( access_t *p_access )
1710 {
1711     access_sys_t   *p_sys = p_access->p_sys;
1712     dshow_stream_t *p_stream = NULL;
1713     VLCMediaSample sample;
1714
1715     /* Read 1 DV/MPEG frame (they contain the video and audio data) */
1716
1717     /* There must be only 1 elementary stream to produce a valid stream
1718      * of MPEG or DV data */
1719     p_stream = p_sys->pp_streams[0];
1720
1721     while( 1 )
1722     {
1723         if( !vlc_object_alive (p_access) || p_access->b_error ) return 0;
1724
1725         /* Get new sample/frame from the elementary stream (blocking). */
1726         vlc_mutex_lock( &p_sys->lock );
1727
1728         if( p_stream->p_capture_filter->CustomGetPin()
1729               ->CustomGetSample( &sample ) != S_OK )
1730         {
1731             /* No data available. Wait until some data has arrived */
1732             vlc_cond_wait( &p_sys->wait, &p_sys->lock );
1733             vlc_mutex_unlock( &p_sys->lock );
1734             continue;
1735         }
1736
1737         vlc_mutex_unlock( &p_sys->lock );
1738
1739         /*
1740          * We got our sample
1741          */
1742         block_t *p_block;
1743         uint8_t *p_data;
1744         int i_data_size = sample.p_sample->GetActualDataLength();
1745
1746         if( !i_data_size || !(p_block = block_New( p_access, i_data_size )) )
1747         {
1748             sample.p_sample->Release();
1749             continue;
1750         }
1751
1752         sample.p_sample->GetPointer( &p_data );
1753         vlc_memcpy( p_block->p_buffer, p_data, i_data_size );
1754         sample.p_sample->Release();
1755
1756         /* The caller got what he wanted */
1757         return p_block;
1758     }
1759
1760     return NULL; /* never reached */
1761 }
1762
1763 /****************************************************************************
1764  * Demux:
1765  ****************************************************************************/
1766 static int Demux( demux_t *p_demux )
1767 {
1768     access_sys_t *p_sys = (access_sys_t *)p_demux->p_sys;
1769     int i_stream;
1770     int i_found_samples;
1771
1772     i_found_samples = 0;
1773     vlc_mutex_lock( &p_sys->lock );
1774
1775     while ( !i_found_samples )
1776     {
1777         /* Try to grab samples from all streams */
1778         for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
1779         {
1780             dshow_stream_t *p_stream = p_sys->pp_streams[i_stream];
1781             if( p_stream->p_capture_filter &&
1782                 p_stream->p_capture_filter->CustomGetPin()
1783                 ->CustomGetSamples( p_stream->samples_queue ) == S_OK )
1784             {
1785                 i_found_samples = 1;
1786             }
1787         }
1788
1789         if ( !i_found_samples)
1790         {
1791             /* Didn't find any audio nor video sample, just wait till the
1792              * dshow thread pushes some samples */
1793             vlc_cond_wait( &p_sys->wait, &p_sys->lock );
1794             /* Some DShow thread pushed data, or the OS broke the wait all
1795              * by itself. In all cases, it's *strongly* advised to test the
1796              * condition again, so let the loop do the test again */
1797         }
1798     }
1799
1800     vlc_mutex_unlock( &p_sys->lock );
1801
1802     for ( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
1803     {
1804         int i_samples;
1805         dshow_stream_t *p_stream = p_sys->pp_streams[i_stream];
1806
1807         i_samples = p_stream->samples_queue.size();
1808         while ( i_samples > 0 )
1809         {
1810             int i_data_size;
1811             uint8_t *p_data;
1812             block_t *p_block;
1813             VLCMediaSample sample;
1814
1815             sample = p_stream->samples_queue.front();
1816             p_stream->samples_queue.pop_front();
1817
1818             i_data_size = sample.p_sample->GetActualDataLength();
1819             sample.p_sample->GetPointer( &p_data );
1820
1821             REFERENCE_TIME i_pts, i_end_date;
1822             HRESULT hr = sample.p_sample->GetTime( &i_pts, &i_end_date );
1823             if( hr != VFW_S_NO_STOP_TIME && hr != S_OK ) i_pts = 0;
1824
1825             if( !i_pts )
1826             {
1827                 if( p_stream->mt.majortype == MEDIATYPE_Video || !p_stream->b_pts )
1828                 {
1829                     /* Use our data timestamp */
1830                     i_pts = sample.i_timestamp;
1831                     p_stream->b_pts = true;
1832                 }
1833             }
1834
1835             i_pts /= 10; /* Dshow works with 100 nano-seconds resolution */
1836
1837 #if 0
1838             msg_Dbg( p_demux, "Read() stream: %i, size: %i, PTS: %"PRId64,
1839                      i_stream, i_data_size, i_pts );
1840 #endif
1841
1842             p_block = block_New( p_demux, i_data_size );
1843             vlc_memcpy( p_block->p_buffer, p_data, i_data_size );
1844             p_block->i_pts = p_block->i_dts = i_pts;
1845             sample.p_sample->Release();
1846
1847             es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_pts > 0 ? i_pts : 0 );
1848             es_out_Send( p_demux->out, p_stream->p_es, p_block );
1849
1850             i_samples--;
1851         }
1852     }
1853
1854     return 1;
1855 }
1856
1857 /*****************************************************************************
1858  * AccessControl:
1859  *****************************************************************************/
1860 static int AccessControl( access_t *p_access, int i_query, va_list args )
1861 {
1862     bool   *pb_bool;
1863     int          *pi_int;
1864     int64_t      *pi_64;
1865
1866     switch( i_query )
1867     {
1868     /* */
1869     case ACCESS_CAN_SEEK:
1870     case ACCESS_CAN_FASTSEEK:
1871     case ACCESS_CAN_PAUSE:
1872     case ACCESS_CAN_CONTROL_PACE:
1873         pb_bool = (bool*)va_arg( args, bool* );
1874         *pb_bool = false;
1875         break;
1876
1877     /* */
1878     case ACCESS_GET_PTS_DELAY:
1879         pi_64 = (int64_t*)va_arg( args, int64_t * );
1880         *pi_64 = (int64_t)var_GetInteger( p_access, "dshow-caching" ) * 1000;
1881         break;
1882
1883     /* */
1884     case ACCESS_SET_PAUSE_STATE:
1885     case ACCESS_GET_TITLE_INFO:
1886     case ACCESS_SET_TITLE:
1887     case ACCESS_SET_SEEKPOINT:
1888     case ACCESS_SET_PRIVATE_ID_STATE:
1889         return VLC_EGENERIC;
1890
1891     default:
1892         msg_Warn( p_access, "unimplemented query in control" );
1893         return VLC_EGENERIC;
1894     }
1895
1896     return VLC_SUCCESS;
1897 }
1898
1899 /****************************************************************************
1900  * DemuxControl:
1901  ****************************************************************************/
1902 static int DemuxControl( demux_t *p_demux, int i_query, va_list args )
1903 {
1904     bool *pb;
1905     int64_t    *pi64;
1906
1907     switch( i_query )
1908     {
1909     /* Special for access_demux */
1910     case DEMUX_CAN_PAUSE:
1911     case DEMUX_CAN_SEEK:
1912     case DEMUX_SET_PAUSE_STATE:
1913     case DEMUX_CAN_CONTROL_PACE:
1914         pb = (bool*)va_arg( args, bool * );
1915         *pb = false;
1916         return VLC_SUCCESS;
1917
1918     case DEMUX_GET_PTS_DELAY:
1919         pi64 = (int64_t*)va_arg( args, int64_t * );
1920         *pi64 = (int64_t)var_GetInteger( p_demux, "dshow-caching" ) * 1000;
1921         return VLC_SUCCESS;
1922
1923     case DEMUX_GET_TIME:
1924         pi64 = (int64_t*)va_arg( args, int64_t * );
1925         *pi64 = mdate();
1926         return VLC_SUCCESS;
1927
1928     /* TODO implement others */
1929     default:
1930         return VLC_EGENERIC;
1931     }
1932
1933     return VLC_EGENERIC;
1934 }
1935
1936 /*****************************************************************************
1937  * config variable callback
1938  *****************************************************************************/
1939 static int FindDevicesCallback( vlc_object_t *p_this, char const *psz_name,
1940                                vlc_value_t newval, vlc_value_t oldval, void * )
1941 {
1942     module_config_t *p_item;
1943     bool b_audio = false;
1944     int i;
1945
1946     p_item = config_FindConfig( p_this, psz_name );
1947     if( !p_item ) return VLC_SUCCESS;
1948
1949     if( !strcmp( psz_name, "dshow-adev" ) ) b_audio = true;
1950
1951     /* Clear-up the current list */
1952     if( p_item->i_list )
1953     {
1954         /* Keep the 2 first entries */
1955         for( i = 2; i < p_item->i_list; i++ )
1956         {
1957             free( const_cast<char *>(p_item->ppsz_list[i]) );
1958             free( const_cast<char *>(p_item->ppsz_list_text[i]) );
1959         }
1960         /* TODO: Remove when no more needed */
1961         p_item->ppsz_list[i] = NULL;
1962         p_item->ppsz_list_text[i] = NULL;
1963     }
1964     p_item->i_list = 2;
1965
1966     /* Find list of devices */
1967     list<string> list_devices;
1968
1969     /* Initialize OLE/COM */
1970     CoInitialize( 0 );
1971
1972     FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
1973
1974     /* Uninitialize OLE/COM */
1975     CoUninitialize();
1976
1977     if( !list_devices.size() ) return VLC_SUCCESS;
1978
1979     p_item->ppsz_list =
1980         (char **)realloc( p_item->ppsz_list,
1981                           (list_devices.size()+3) * sizeof(char *) );
1982     p_item->ppsz_list_text =
1983         (char **)realloc( p_item->ppsz_list_text,
1984                           (list_devices.size()+3) * sizeof(char *) );
1985
1986     list<string>::iterator iter;
1987     for( iter = list_devices.begin(), i = 2; iter != list_devices.end();
1988          iter++, i++ )
1989     {
1990         p_item->ppsz_list[i] = strdup( iter->c_str() );
1991         p_item->ppsz_list_text[i] = NULL;
1992         p_item->i_list++;
1993     }
1994     p_item->ppsz_list[i] = NULL;
1995     p_item->ppsz_list_text[i] = NULL;
1996
1997     /* Signal change to the interface */
1998     p_item->b_dirty = true;
1999
2000     return VLC_SUCCESS;
2001 }
2002
2003 static int ConfigDevicesCallback( vlc_object_t *p_this, char const *psz_name,
2004                                vlc_value_t newval, vlc_value_t oldval, void * )
2005 {
2006     module_config_t *p_item;
2007     bool b_audio = false;
2008
2009     /* Initialize OLE/COM */
2010     CoInitialize( 0 );
2011
2012     p_item = config_FindConfig( p_this, psz_name );
2013     if( !p_item ) return VLC_SUCCESS;
2014
2015     if( !strcmp( psz_name, "dshow-adev" ) ) b_audio = true;
2016
2017     string devicename;
2018
2019     if( newval.psz_string && *newval.psz_string )
2020     {
2021         devicename = newval.psz_string;
2022     }
2023     else
2024     {
2025         /* If no device name was specified, pick the 1st one */
2026         list<string> list_devices;
2027
2028         /* Enumerate devices */
2029         FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
2030         if( !list_devices.size() ) return VLC_EGENERIC;
2031         devicename = *list_devices.begin();
2032     }
2033
2034     IBaseFilter *p_device_filter =
2035         FindCaptureDevice( p_this, &devicename, NULL, b_audio );
2036     if( p_device_filter )
2037     {
2038         ShowPropertyPage( p_device_filter );
2039         p_device_filter->Release();
2040     }
2041     else
2042     {
2043         /* Uninitialize OLE/COM */
2044         CoUninitialize();
2045
2046         msg_Err( p_this, "didn't find device: %s", devicename.c_str() );
2047         return VLC_EGENERIC;
2048     }
2049
2050     /* Uninitialize OLE/COM */
2051     CoUninitialize();
2052
2053     return VLC_SUCCESS;
2054 }
2055
2056 /*****************************************************************************
2057  * Properties
2058  *****************************************************************************/
2059
2060 static void ShowPropertyPage( IUnknown *obj )
2061 {
2062     ISpecifyPropertyPages *p_spec;
2063     CAUUID cauuid;
2064
2065     HRESULT hr = obj->QueryInterface( IID_ISpecifyPropertyPages,
2066                                       (void **)&p_spec );
2067     if( FAILED(hr) ) return;
2068
2069     if( SUCCEEDED(p_spec->GetPages( &cauuid )) )
2070     {
2071         if( cauuid.cElems > 0 )
2072         {
2073             HWND hwnd_desktop = ::GetDesktopWindow();
2074
2075             OleCreatePropertyFrame( hwnd_desktop, 30, 30, NULL, 1, &obj,
2076                                     cauuid.cElems, cauuid.pElems, 0, 0, NULL );
2077
2078             CoTaskMemFree( cauuid.pElems );
2079         }
2080         p_spec->Release();
2081     }
2082 }
2083
2084 static void ShowDeviceProperties( vlc_object_t *p_this,
2085                                   ICaptureGraphBuilder2 *p_graph,
2086                                   IBaseFilter *p_device_filter,
2087                                   bool b_audio )
2088 {
2089     HRESULT hr;
2090     msg_Dbg( p_this, "configuring Device Properties" );
2091
2092     /*
2093      * Video or audio capture filter page
2094      */
2095     ShowPropertyPage( p_device_filter );
2096
2097     /*
2098      * Audio capture pin
2099      */
2100     if( p_graph && b_audio )
2101     {
2102         IAMStreamConfig *p_SC;
2103
2104         msg_Dbg( p_this, "showing WDM Audio Configuration Pages" );
2105
2106         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2107                                      &MEDIATYPE_Audio, p_device_filter,
2108                                      IID_IAMStreamConfig, (void **)&p_SC );
2109         if( SUCCEEDED(hr) )
2110         {
2111             ShowPropertyPage(p_SC);
2112             p_SC->Release();
2113         }
2114
2115         /*
2116          * TV Audio filter
2117          */
2118         IAMTVAudio *p_TVA;
2119         HRESULT hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2120                                              &MEDIATYPE_Audio, p_device_filter,
2121                                              IID_IAMTVAudio, (void **)&p_TVA );
2122         if( SUCCEEDED(hr) )
2123         {
2124             ShowPropertyPage(p_TVA);
2125             p_TVA->Release();
2126         }
2127     }
2128
2129     /*
2130      * Video capture pin
2131      */
2132     if( p_graph && !b_audio )
2133     {
2134         IAMStreamConfig *p_SC;
2135
2136         msg_Dbg( p_this, "showing WDM Video Configuration Pages" );
2137
2138         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2139                                      &MEDIATYPE_Interleaved, p_device_filter,
2140                                      IID_IAMStreamConfig, (void **)&p_SC );
2141         if( FAILED(hr) )
2142         {
2143             hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2144                                          &MEDIATYPE_Video, p_device_filter,
2145                                          IID_IAMStreamConfig, (void **)&p_SC );
2146         }
2147
2148         if( FAILED(hr) )
2149         {
2150             hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2151                                          &MEDIATYPE_Stream, p_device_filter,
2152                                          IID_IAMStreamConfig, (void **)&p_SC );
2153         }
2154
2155         if( SUCCEEDED(hr) )
2156         {
2157             ShowPropertyPage(p_SC);
2158             p_SC->Release();
2159         }
2160     }
2161 }
2162
2163 static void ShowTunerProperties( vlc_object_t *p_this,
2164                                  ICaptureGraphBuilder2 *p_graph,
2165                                  IBaseFilter *p_device_filter,
2166                                  bool b_audio )
2167 {
2168     HRESULT hr;
2169     msg_Dbg( p_this, "configuring Tuner Properties" );
2170
2171     if( !p_graph || b_audio ) return;
2172
2173     IAMTVTuner *p_TV;
2174     hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2175                                  &MEDIATYPE_Interleaved, p_device_filter,
2176                                  IID_IAMTVTuner, (void **)&p_TV );
2177     if( FAILED(hr) )
2178     {
2179         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2180                                      &MEDIATYPE_Video, p_device_filter,
2181                                      IID_IAMTVTuner, (void **)&p_TV );
2182     }
2183
2184     if( FAILED(hr) )
2185     {
2186         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
2187                                      &MEDIATYPE_Stream, p_device_filter,
2188                                      IID_IAMTVTuner, (void **)&p_TV );
2189     }
2190
2191     if( SUCCEEDED(hr) )
2192     {
2193         ShowPropertyPage(p_TV);
2194         p_TV->Release();
2195     }
2196 }
2197
2198 static void ConfigTuner( vlc_object_t *p_this, ICaptureGraphBuilder2 *p_graph,
2199                          IBaseFilter *p_device_filter )
2200 {
2201     int i_channel, i_country, i_input, i_amtuner_mode;
2202     long l_modes = 0;
2203     IAMTVTuner *p_TV;
2204     HRESULT hr;
2205
2206     if( !p_graph ) return;
2207
2208     i_channel = var_GetInteger( p_this, "dshow-tuner-channel" );
2209     i_country = var_GetInteger( p_this, "dshow-tuner-country" );
2210     i_input = var_GetInteger( p_this, "dshow-tuner-input" );
2211     i_amtuner_mode = var_GetInteger( p_this, "dshow-amtuner-mode" );
2212
2213     if( !i_channel && !i_country && !i_input ) return; /* Nothing to do */
2214
2215     msg_Dbg( p_this, "tuner config: channel %i, country %i, input type %i",
2216              i_channel, i_country, i_input );
2217
2218     hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Interleaved,
2219                                  p_device_filter, IID_IAMTVTuner,
2220                                  (void **)&p_TV );
2221     if( FAILED(hr) )
2222     {
2223         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Video,
2224                                      p_device_filter, IID_IAMTVTuner,
2225                                      (void **)&p_TV );
2226     }
2227
2228     if( FAILED(hr) )
2229     {
2230         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Stream,
2231                                      p_device_filter, IID_IAMTVTuner,
2232                                      (void **)&p_TV );
2233     }
2234
2235     if( FAILED(hr) )
2236     {
2237         msg_Dbg( p_this, "couldn't find tuner interface" );
2238         return;
2239     }
2240
2241     hr = p_TV->GetAvailableModes( &l_modes );
2242     if( SUCCEEDED(hr) && (l_modes & i_amtuner_mode) )
2243     {
2244         hr = p_TV->put_Mode( (AMTunerModeType)i_amtuner_mode );
2245     }
2246
2247     if( i_input == 1 ) p_TV->put_InputType( 0, TunerInputCable );
2248     else if( i_input == 2 ) p_TV->put_InputType( 0, TunerInputAntenna );
2249
2250     p_TV->put_CountryCode( i_country );
2251     p_TV->put_Channel( i_channel, AMTUNER_SUBCHAN_NO_TUNE,
2252                        AMTUNER_SUBCHAN_NO_TUNE );
2253     p_TV->Release();
2254 }