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

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