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     vlc_mutex_init( p_this, &p_sys->lock );
 319     vlc_cond_init( p_this, &p_sys->wait );
 320
 321     /* Build directshow graph */
 322     CreateDirectShowGraph( p_sys );
 323
 324     if( OpenDevice( p_this, p_sys, vdevname, 0 ) != VLC_SUCCESS )
 325     {
 326         msg_Err( p_this, "can't open video");
 327     }
 328     else
 329     {
 330         /* Check if we can handle the demuxing ourselves or need to spawn
 331          * a demuxer module */
 332         dshow_stream_t *p_stream = p_sys->pp_streams[p_sys->i_streams-1];
 333
 334         if( p_stream->mt.majortype == MEDIATYPE_Video )
 335         {
 336             if( /* Raw DV stream */
 337                 p_stream->i_fourcc == VLC_FOURCC('d','v','s','l') ||
 338                 p_stream->i_fourcc == VLC_FOURCC('d','v','s','d') ||
 339                 p_stream->i_fourcc == VLC_FOURCC('d','v','h','d') ||
 340                 /* Raw MPEG video stream */
 341                 p_stream->i_fourcc == VLC_FOURCC('m','p','2','v') )
 342             {
 343                 b_audio = VLC_FALSE;
 344
 345                 if( b_access_demux )
 346                 {
 347                     /* Let the access (only) take care of that */
 348                   return VLC_EGENERIC;
 349                 }
 350             }
 351         }
 352
 353         if( p_stream->mt.majortype == MEDIATYPE_Stream )
 354         {
 355             b_audio = VLC_FALSE;
 356
 357             if( b_access_demux )
 358             {
 359                 /* Let the access (only) take care of that */
 360                 return VLC_EGENERIC;
 361             }
 362         }
 363     }
 364
 365     if( b_audio && OpenDevice( p_this, p_sys, adevname, 1 ) != VLC_SUCCESS )
 366     {
 367         msg_Err( p_this, "can't open audio");
 368     }
 369
 370     for( i = p_sys->i_crossbar_route_depth-1; i >= 0 ; --i )
 371     {
 372         IAMCrossbar *pXbar = p_sys->crossbar_routes[i].pXbar;
 373         LONG VideoInputIndex = p_sys->crossbar_routes[i].VideoInputIndex;
 374         LONG VideoOutputIndex = p_sys->crossbar_routes[i].VideoOutputIndex;
 375         LONG AudioInputIndex = p_sys->crossbar_routes[i].AudioInputIndex;
 376         LONG AudioOutputIndex = p_sys->crossbar_routes[i].AudioOutputIndex;
 377
 378         if( SUCCEEDED(pXbar->Route(VideoOutputIndex, VideoInputIndex)) )
 379         {
 380             msg_Dbg( p_this, "Crossbar at depth %d, Routed video "
 381                      "ouput %ld to video input %ld", i, VideoOutputIndex,
 382                      VideoInputIndex );
 383
 384             if( AudioOutputIndex != -1 && AudioInputIndex != -1 )
 385             {
 386                 if( SUCCEEDED( pXbar->Route(AudioOutputIndex,
 387                                             AudioInputIndex)) )
 388                 {
 389                     msg_Dbg(p_this, "Crossbar at depth %d, Routed audio "
 390                             "ouput %ld to audio input %ld", i,
 391                             AudioOutputIndex, AudioInputIndex );
 392                 }
 393             }
 394         }
 395     }
 396
 397     /*
 398     ** Show properties pages from other filters in graph
 399     */
 400     var_Get( p_this, "dshow-config", &val );
 401     if( val.b_bool )
 402     {
 403         for( i = p_sys->i_crossbar_route_depth-1; i >= 0 ; --i )
 404         {
 405             IAMCrossbar *pXbar = p_sys->crossbar_routes[i].pXbar;
 406             IBaseFilter *p_XF;
 407
 408             if( SUCCEEDED( pXbar->QueryInterface( IID_IBaseFilter,
 409                                                   (void **)&p_XF ) ) )
 410             {
 411                 ShowPropertyPage( p_XF );
 412                 p_XF->Release();
 413             }
 414         }
 415     }
 416
 417     /* Initialize some data */
 418     p_sys->i_current_stream = 0;
 419
 420     if( !p_sys->i_streams ) return VLC_EGENERIC;
 421
 422     return VLC_SUCCESS;
 423 }
 424
 425 /*****************************************************************************
 426  * DemuxOpen: open direct show device as an access_demux module
 427  *****************************************************************************/
 428 static int DemuxOpen( vlc_object_t *p_this )
 429 {
 430     demux_t      *p_demux = (demux_t *)p_this;
 431     access_sys_t *p_sys;
 432     int i;
 433
 434     p_sys = (access_sys_t *)malloc( sizeof( access_sys_t ) );
 435     memset( p_sys, 0, sizeof( access_sys_t ) );
 436     p_demux->p_sys = (demux_sys_t *)p_sys;
 437
 438     if( CommonOpen( p_this, p_sys, VLC_TRUE ) != VLC_SUCCESS )
 439     {
 440         CommonClose( p_this, p_sys );
 441         return VLC_EGENERIC;
 442     }
 443
 444     /* Everything is ready. Let's rock baby */
 445     msg_Dbg( p_this, "Playing...");
 446     p_sys->p_control->Run();
 447
 448     p_demux->pf_demux   = Demux;
 449     p_demux->pf_control = DemuxControl;
 450     p_demux->info.i_update = 0;
 451     p_demux->info.i_title = 0;
 452     p_demux->info.i_seekpoint = 0;
 453
 454     for( i = 0; i < p_sys->i_streams; i++ )
 455     {
 456         dshow_stream_t *p_stream = p_sys->pp_streams[i];
 457         es_format_t fmt;
 458
 459         if( p_stream->mt.majortype == MEDIATYPE_Video )
 460         {
 461             es_format_Init( &fmt, VIDEO_ES, p_stream->i_fourcc );
 462
 463             fmt.video.i_width  = p_stream->header.video.bmiHeader.biWidth;
 464             fmt.video.i_height = p_stream->header.video.bmiHeader.biHeight;
 465             fmt.video.i_aspect = 4 * VOUT_ASPECT_FACTOR / 3;
 466
 467             if( !p_stream->header.video.bmiHeader.biCompression )
 468             {
 469                 /* RGB DIB are coded from bottom to top */
 470                 fmt.video.i_height = (unsigned int)(-(int)fmt.video.i_height);
 471             }
 472
 473             /* Setup rgb mask for RGB formats */
 474             if( p_stream->i_fourcc == VLC_FOURCC('R','V','2','4') )
 475             {
 476                 /* This is in BGR format */
 477                 fmt.video.i_bmask = 0x00ff0000;
 478                 fmt.video.i_gmask = 0x0000ff00;
 479                 fmt.video.i_rmask = 0x000000ff;
 480             }
 481         }
 482         else if( p_stream->mt.majortype == MEDIATYPE_Audio )
 483         {
 484             es_format_Init( &fmt, AUDIO_ES, p_stream->i_fourcc );
 485
 486             fmt.audio.i_channels = p_stream->header.audio.nChannels;
 487             fmt.audio.i_rate = p_stream->header.audio.nSamplesPerSec;
 488             fmt.audio.i_bitspersample = p_stream->header.audio.wBitsPerSample;
 489             fmt.audio.i_blockalign = fmt.audio.i_channels *
 490                 fmt.audio.i_bitspersample / 8;
 491             fmt.i_bitrate = fmt.audio.i_channels * fmt.audio.i_rate *
 492                 fmt.audio.i_bitspersample;
 493         }
 494
 495         p_stream->p_es = es_out_Add( p_demux->out, &fmt );
 496     }
 497
 498     return VLC_SUCCESS;
 499 }
 500
 501 /*****************************************************************************
 502  * AccessOpen: open direct show device as an access module
 503  *****************************************************************************/
 504 static int AccessOpen( vlc_object_t *p_this )
 505 {
 506     access_t     *p_access = (access_t*)p_this;
 507     access_sys_t *p_sys;
 508
 509     p_access->p_sys = p_sys = (access_sys_t *)malloc( sizeof( access_sys_t ) );
 510     memset( p_sys, 0, sizeof( access_sys_t ) );
 511
 512     if( CommonOpen( p_this, p_sys, VLC_FALSE ) != VLC_SUCCESS )
 513     {
 514         CommonClose( p_this, p_sys );
 515         return VLC_EGENERIC;
 516     }
 517
 518     dshow_stream_t *p_stream = p_sys->pp_streams[0];
 519
 520     /* Check if we need to force demuxers */
 521     if( !p_access->psz_demux || !*p_access->psz_demux )
 522     {
 523         if( p_stream->i_fourcc == VLC_FOURCC('d','v','s','l') ||
 524             p_stream->i_fourcc == VLC_FOURCC('d','v','s','d') ||
 525             p_stream->i_fourcc == VLC_FOURCC('d','v','h','d') )
 526         {
 527             p_access->psz_demux = strdup( "rawdv" );
 528         }
 529         else if( p_stream->i_fourcc == VLC_FOURCC('m','p','2','v') )
 530         {
 531             p_access->psz_demux = "mpgv";
 532         }
 533     }
 534
 535     /* Setup Access */
 536     p_access->pf_read = ReadCompressed;
 537     p_access->pf_block = NULL;
 538     p_access->pf_control = AccessControl;
 539     p_access->pf_seek = NULL;
 540     p_access->info.i_update = 0;
 541     p_access->info.i_size = 0;
 542     p_access->info.i_pos = 0;
 543     p_access->info.b_eof = VLC_FALSE;
 544     p_access->info.i_title = 0;
 545     p_access->info.i_seekpoint = 0;
 546     p_access->p_sys = p_sys;
 547
 548     /* Everything is ready. Let's rock baby */
 549     msg_Dbg( p_this, "Playing...");
 550     p_sys->p_control->Run();
 551
 552     return VLC_SUCCESS;
 553 }
 554
 555 /*****************************************************************************
 556  * CommonClose: close device
 557  *****************************************************************************/
 558 static void CommonClose( vlc_object_t *p_this, access_sys_t *p_sys )
 559 {
 560     msg_Dbg( p_this, "Releasing DirectShow");
 561
 562     DeleteDirectShowGraph( p_sys );
 563
 564     /* Uninitialize OLE/COM */
 565     CoUninitialize();
 566
 567     /* Remove filters from graph */
 568     for( int i = 0; i < p_sys->i_streams; i++ ) delete p_sys->pp_streams[i];
 569     if( p_sys->i_streams ) free( p_sys->pp_streams );
 570
 571     vlc_mutex_destroy( &p_sys->lock );
 572     vlc_cond_destroy( &p_sys->wait );
 573
 574     free( p_sys );
 575 }
 576
 577 /*****************************************************************************
 578  * AccessClose: close device
 579  *****************************************************************************/
 580 static void AccessClose( vlc_object_t *p_this )
 581 {
 582     access_t     *p_access = (access_t *)p_this;
 583     access_sys_t *p_sys    = p_access->p_sys;
 584
 585     /* Stop capturing stuff */
 586     p_sys->p_control->Stop();
 587
 588     CommonClose( p_this, p_sys );
 589 }
 590
 591 /*****************************************************************************
 592  * DemuxClose: close device
 593  *****************************************************************************/
 594 static void DemuxClose( vlc_object_t *p_this )
 595 {
 596     demux_t      *p_demux = (demux_t *)p_this;
 597     access_sys_t *p_sys   = (access_sys_t *)p_demux->p_sys;
 598
 599     /* Stop capturing stuff */
 600     p_sys->p_control->Stop();
 601
 602     CommonClose( p_this, p_sys );
 603 }
 604
 605 /****************************************************************************
 606  * ConnectFilters
 607  ****************************************************************************/
 608 static bool ConnectFilters( vlc_object_t *p_this, access_sys_t *p_sys,
 609                             IBaseFilter *p_filter,
 610                             CaptureFilter *p_capture_filter )
 611 {
 612     CapturePin *p_input_pin = p_capture_filter->CustomGetPin();
 613
 614     AM_MEDIA_TYPE mediaType = p_input_pin->CustomGetMediaType();
 615
 616     if( p_sys->p_capture_graph_builder2 )
 617     {
 618         if( FAILED(p_sys->p_capture_graph_builder2->
 619                 RenderStream( &PIN_CATEGORY_CAPTURE, &mediaType.majortype,
 620                               p_filter, 0, (IBaseFilter *)p_capture_filter )) )
 621         {
 622             return false;
 623         }
 624
 625         // Sort out all the possible video inputs
 626         // The class needs to be given the capture filters ANALOGVIDEO input pin
 627         IEnumPins *pins = 0;
 628         if( mediaType.majortype == MEDIATYPE_Video &&
 629             SUCCEEDED(p_filter->EnumPins(&pins)) )
 630         {
 631             IPin        *pP = 0;
 632             ULONG        n;
 633             PIN_INFO     pinInfo;
 634             BOOL         Found = FALSE;
 635             IKsPropertySet *pKs=0;
 636             GUID guid;
 637             DWORD dw;
 638
 639             while( !Found && ( S_OK == pins->Next(1, &pP, &n) ) )
 640             {
 641                 if( S_OK == pP->QueryPinInfo(&pinInfo) )
 642                 {
 643                     // is this pin an ANALOGVIDEOIN input pin?
 644                     if( pinInfo.dir == PINDIR_INPUT &&
 645                         pP->QueryInterface( IID_IKsPropertySet,
 646                                             (void **)&pKs ) == S_OK )
 647                     {
 648                         if( pKs->Get( AMPROPSETID_Pin,
 649                                       AMPROPERTY_PIN_CATEGORY, NULL, 0,
 650                                       &guid, sizeof(GUID), &dw ) == S_OK )
 651                         {
 652                             if( guid == PIN_CATEGORY_ANALOGVIDEOIN )
 653                             {
 654                                 // recursively search crossbar routes
 655                                 FindCrossbarRoutes( p_this, p_sys, pP, 0 );
 656                                 // found it
 657                                 Found = TRUE;
 658                             }
 659                         }
 660                         pKs->Release();
 661                     }
 662                     pinInfo.pFilter->Release();
 663                 }
 664                 pP->Release();
 665             }
 666             pins->Release();
 667         }
 668         return true;
 669     }
 670     else
 671     {
 672         IEnumPins *p_enumpins;
 673         IPin *p_pin;
 674
 675         if( S_OK != p_filter->EnumPins( &p_enumpins ) ) return false;
 676
 677         while( S_OK == p_enumpins->Next( 1, &p_pin, NULL ) )
 678         {
 679             PIN_DIRECTION pin_dir;
 680             p_pin->QueryDirection( &pin_dir );
 681
 682             if( pin_dir == PINDIR_OUTPUT &&
 683                 p_sys->p_graph->ConnectDirect( p_pin, (IPin *)p_input_pin,
 684                                                0 ) == S_OK )
 685             {
 686                 p_pin->Release();
 687                 p_enumpins->Release();
 688                 return true;
 689             }
 690             p_pin->Release();
 691         }
 692
 693         p_enumpins->Release();
 694         return false;
 695     }
 696 }
 697
 698 /*
 699  * get fourcc priority from arbritary preference, the higher the better
 700  */
 701 static int GetFourCCPriority( int i_fourcc )
 702 {
 703     switch( i_fourcc )
 704     {
 705     case VLC_FOURCC('I','4','2','0'):
 706     case VLC_FOURCC('f','l','3','2'):
 707         return 9;
 708     case VLC_FOURCC('Y','V','1','2'):
 709     case VLC_FOURCC('a','r','a','w'):
 710         return 8;
 711     case VLC_FOURCC('R','V','2','4'):
 712         return 7;
 713     case VLC_FOURCC('Y','U','Y','2'):
 714     case VLC_FOURCC('R','V','3','2'):
 715     case VLC_FOURCC('R','G','B','A'):
 716         return 6;
 717     }
 718
 719     return 0;
 720 }
 721
 722 #define MAX_MEDIA_TYPES 32
 723
 724 static int OpenDevice( vlc_object_t *p_this, access_sys_t *p_sys,
 725                        string devicename, vlc_bool_t b_audio )
 726 {
 727     /* See if device is already opened */
 728     for( int i = 0; i < p_sys->i_streams; i++ )
 729     {
 730         if( devicename.size() &&
 731             p_sys->pp_streams[i]->devicename == devicename )
 732         {
 733             /* Already opened */
 734             return VLC_SUCCESS;
 735         }
 736     }
 737
 738     list<string> list_devices;
 739
 740     /* Enumerate devices and display their names */
 741     FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
 742
 743     if( !list_devices.size() )
 744         return VLC_EGENERIC;
 745
 746     list<string>::iterator iter;
 747     for( iter = list_devices.begin(); iter != list_devices.end(); iter++ )
 748         msg_Dbg( p_this, "found device: %s", iter->c_str() );
 749
 750     /* If no device name was specified, pick the 1st one */
 751     if( devicename.size() == 0 )
 752     {
 753         devicename = *list_devices.begin();
 754     }
 755
 756     // Use the system device enumerator and class enumerator to find
 757     // a capture/preview device, such as a desktop USB video camera.
 758     IBaseFilter *p_device_filter =
 759         FindCaptureDevice( p_this, &devicename, 0, b_audio );
 760     if( p_device_filter )
 761         msg_Dbg( p_this, "using device: %s", devicename.c_str() );
 762     else
 763     {
 764         msg_Err( p_this, "can't use device: %s, unsupported device type",
 765                  devicename.c_str() );
 766         return VLC_EGENERIC;
 767     }
 768
 769     // Retreive acceptable media types supported by device
 770     AM_MEDIA_TYPE media_types[MAX_MEDIA_TYPES];
 771     size_t media_count =
 772         EnumDeviceCaps( p_this, p_device_filter, p_sys->i_chroma,
 773                         p_sys->i_width, p_sys->i_height,
 774                         0, 0, 0, media_types, MAX_MEDIA_TYPES );
 775
 776     /* Find out if the pin handles MEDIATYPE_Stream, in which case we
 777      * won't add a prefered media type as this doesn't seem to work well
 778      * -- to investigate. */
 779     vlc_bool_t b_stream_type = VLC_FALSE;
 780     for( size_t i = 0; i < media_count; i++ )
 781     {
 782         if( media_types[i].majortype == MEDIATYPE_Stream )
 783         {
 784             b_stream_type = VLC_TRUE;
 785             break;
 786         }
 787     }
 788
 789     size_t mt_count = 0;
 790     AM_MEDIA_TYPE *mt = NULL;
 791
 792     if( !b_stream_type && !b_audio )
 793     {
 794         // Insert prefered video media type
 795         AM_MEDIA_TYPE mtr;
 796         VIDEOINFOHEADER vh;
 797
 798         mtr.majortype            = MEDIATYPE_Video;
 799         mtr.subtype              = MEDIASUBTYPE_I420;
 800         mtr.bFixedSizeSamples    = TRUE;
 801         mtr.bTemporalCompression = FALSE;
 802         mtr.pUnk                 = NULL;
 803         mtr.formattype           = FORMAT_VideoInfo;
 804         mtr.cbFormat             = sizeof(vh);
 805         mtr.pbFormat             = (BYTE *)&vh;
 806
 807         memset(&vh, 0, sizeof(vh));
 808
 809         vh.bmiHeader.biSize   = sizeof(vh.bmiHeader);
 810         vh.bmiHeader.biWidth  = p_sys->i_width > 0 ? p_sys->i_width : 320;
 811         vh.bmiHeader.biHeight = p_sys->i_height > 0 ? p_sys->i_height : 240;
 812         vh.bmiHeader.biPlanes      = 3;
 813         vh.bmiHeader.biBitCount    = 12;
 814         vh.bmiHeader.biCompression = VLC_FOURCC('I','4','2','0');
 815         vh.bmiHeader.biSizeImage   = vh.bmiHeader.biWidth * 12 *
 816             vh.bmiHeader.biHeight / 8;
 817         mtr.lSampleSize            = vh.bmiHeader.biSizeImage;
 818
 819         mt_count = 1;
 820         mt = (AM_MEDIA_TYPE *)malloc( sizeof(AM_MEDIA_TYPE)*mt_count );
 821         CopyMediaType(mt, &mtr);
 822     }
 823     else if( !b_stream_type )
 824     {
 825         // Insert prefered audio media type
 826         AM_MEDIA_TYPE mtr;
 827         WAVEFORMATEX wf;
 828
 829         mtr.majortype            = MEDIATYPE_Audio;
 830         mtr.subtype              = MEDIASUBTYPE_PCM;
 831         mtr.bFixedSizeSamples    = TRUE;
 832         mtr.bTemporalCompression = FALSE;
 833         mtr.lSampleSize          = 0;
 834         mtr.pUnk                 = NULL;
 835         mtr.formattype           = FORMAT_WaveFormatEx;
 836         mtr.cbFormat             = sizeof(wf);
 837         mtr.pbFormat             = (BYTE *)&wf;
 838
 839         memset(&wf, 0, sizeof(wf));
 840
 841         wf.wFormatTag = WAVE_FORMAT_PCM;
 842         wf.nChannels = 2;
 843         wf.nSamplesPerSec = 44100;
 844         wf.wBitsPerSample = 16;
 845         wf.nBlockAlign = wf.nSamplesPerSec * wf.wBitsPerSample / 8;
 846         wf.nAvgBytesPerSec = wf.nSamplesPerSec * wf.nBlockAlign;
 847         wf.cbSize = 0;
 848
 849         mt_count = 1;
 850         mt = (AM_MEDIA_TYPE *)malloc( sizeof(AM_MEDIA_TYPE)*mt_count );
 851         CopyMediaType(mt, &mtr);
 852     }
 853
 854     if( media_count > 0 )
 855     {
 856         mt = (AM_MEDIA_TYPE *)realloc( mt, sizeof(AM_MEDIA_TYPE) *
 857                                        (mt_count + media_count) );
 858
 859         // Order and copy returned media types according to arbitrary
 860         // fourcc priority
 861         for( size_t c = 0; c < media_count; c++ )
 862         {
 863             int slot_priority =
 864                 GetFourCCPriority(GetFourCCFromMediaType(media_types[c]));
 865             size_t slot_copy = c;
 866             for( size_t d = c+1; d < media_count; d++ )
 867             {
 868                 int priority =
 869                     GetFourCCPriority(GetFourCCFromMediaType(media_types[d]));
 870                 if( priority > slot_priority )
 871                 {
 872                     slot_priority = priority;
 873                     slot_copy = d;
 874                 }
 875             }
 876             if( slot_copy != c )
 877             {
 878                 mt[c+mt_count] = media_types[slot_copy];
 879                 media_types[slot_copy] = media_types[c];
 880             }
 881             else
 882             {
 883                 mt[c+mt_count] = media_types[c];
 884             }
 885         }
 886         mt_count += media_count;
 887     }
 888
 889     /* Create and add our capture filter */
 890     CaptureFilter *p_capture_filter =
 891         new CaptureFilter( p_this, p_sys, mt, mt_count );
 892     p_sys->p_graph->AddFilter( p_capture_filter, 0 );
 893
 894     /* Add the device filter to the graph (seems necessary with VfW before
 895      * accessing pin attributes). */
 896     p_sys->p_graph->AddFilter( p_device_filter, 0 );
 897
 898     /* Attempt to connect one of this device's capture output pins */
 899     msg_Dbg( p_this, "connecting filters" );
 900     if( ConnectFilters( p_this, p_sys, p_device_filter, p_capture_filter ) )
 901     {
 902         /* Success */
 903         msg_Dbg( p_this, "filters connected successfully !" );
 904
 905         dshow_stream_t dshow_stream;
 906         dshow_stream.b_pts = VLC_FALSE;
 907         dshow_stream.p_es = 0;
 908         dshow_stream.mt =
 909             p_capture_filter->CustomGetPin()->CustomGetMediaType();
 910
 911         /* Show Device properties. Done here so the VLC stream is setup with
 912          * the proper parameters. */
 913         vlc_value_t val;
 914         var_Get( p_this, "dshow-config", &val );
 915         if( val.b_bool )
 916         {
 917             ShowDeviceProperties( p_this, p_sys->p_capture_graph_builder2,
 918                                   p_device_filter, b_audio );
 919         }
 920
 921         var_Get( p_this, "dshow-tuner", &val );
 922         if( val.b_bool )
 923         {
 924             ShowTunerProperties( p_this, p_sys->p_capture_graph_builder2,
 925                                  p_device_filter, b_audio );
 926         }
 927
 928         dshow_stream.mt =
 929             p_capture_filter->CustomGetPin()->CustomGetMediaType();
 930
 931         dshow_stream.i_fourcc = GetFourCCFromMediaType( dshow_stream.mt );
 932         if( dshow_stream.i_fourcc )
 933         {
 934             if( dshow_stream.mt.majortype == MEDIATYPE_Video )
 935             {
 936                 dshow_stream.header.video =
 937                     *(VIDEOINFOHEADER *)dshow_stream.mt.pbFormat;
 938                 msg_Dbg( p_this, "MEDIATYPE_Video" );
 939                 msg_Dbg( p_this, "selected video pin accepts format: %4.4s",
 940                          (char *)&dshow_stream.i_fourcc);
 941             }
 942             else if( dshow_stream.mt.majortype == MEDIATYPE_Audio )
 943             {
 944                 dshow_stream.header.audio =
 945                     *(WAVEFORMATEX *)dshow_stream.mt.pbFormat;
 946                 msg_Dbg( p_this, "MEDIATYPE_Audio" );
 947                 msg_Dbg( p_this, "selected audio pin accepts format: %4.4s",
 948                          (char *)&dshow_stream.i_fourcc);
 949             }
 950             else if( dshow_stream.mt.majortype == MEDIATYPE_Stream )
 951             {
 952                 msg_Dbg( p_this, "MEDIATYPE_Stream" );
 953                 msg_Dbg( p_this, "selected stream pin accepts format: %4.4s",
 954                          (char *)&dshow_stream.i_fourcc);
 955             }
 956             else
 957             {
 958                 msg_Dbg( p_this, "unknown stream majortype" );
 959                 goto fail;
 960             }
 961
 962             /* Add directshow elementary stream to our list */
 963             dshow_stream.p_device_filter = p_device_filter;
 964             dshow_stream.p_capture_filter = p_capture_filter;
 965
 966             p_sys->pp_streams = (dshow_stream_t **)realloc( p_sys->pp_streams,
 967                 sizeof(dshow_stream_t *) * (p_sys->i_streams + 1) );
 968             p_sys->pp_streams[p_sys->i_streams] = new dshow_stream_t;
 969             *p_sys->pp_streams[p_sys->i_streams++] = dshow_stream;
 970
 971             return VLC_SUCCESS;
 972         }
 973     }
 974
 975  fail:
 976     /* Remove filters from graph */
 977     p_sys->p_graph->RemoveFilter( p_device_filter );
 978     p_sys->p_graph->RemoveFilter( p_capture_filter );
 979
 980     /* Release objects */
 981     p_device_filter->Release();
 982     p_capture_filter->Release();
 983
 984     return VLC_EGENERIC;
 985 }
 986
 987 static IBaseFilter *
 988 FindCaptureDevice( vlc_object_t *p_this, string *p_devicename,
 989                    list<string> *p_listdevices, vlc_bool_t b_audio )
 990 {
 991     IBaseFilter *p_base_filter = NULL;
 992     IMoniker *p_moniker = NULL;
 993     ULONG i_fetched;
 994     HRESULT hr;
 995
 996     /* Create the system device enumerator */
 997     ICreateDevEnum *p_dev_enum = NULL;
 998
 999     hr = CoCreateInstance( CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC,
1000                            IID_ICreateDevEnum, (void **)&p_dev_enum );
1001     if( FAILED(hr) )
1002     {
1003         msg_Err( p_this, "failed to create the device enumerator (0x%lx)", hr);
1004         return NULL;
1005     }
1006
1007     /* Create an enumerator for the video capture devices */
1008     IEnumMoniker *p_class_enum = NULL;
1009     if( !b_audio )
1010         hr = p_dev_enum->CreateClassEnumerator( CLSID_VideoInputDeviceCategory,
1011                                                 &p_class_enum, 0 );
1012     else
1013         hr = p_dev_enum->CreateClassEnumerator( CLSID_AudioInputDeviceCategory,
1014                                                 &p_class_enum, 0 );
1015     p_dev_enum->Release();
1016     if( FAILED(hr) )
1017     {
1018         msg_Err( p_this, "failed to create the class enumerator (0x%lx)", hr );
1019         return NULL;
1020     }
1021
1022     /* If there are no enumerators for the requested type, then
1023      * CreateClassEnumerator will succeed, but p_class_enum will be NULL */
1024     if( p_class_enum == NULL )
1025     {
1026         msg_Err( p_this, "no capture device was detected" );
1027         return NULL;
1028     }
1029
1030     /* Enumerate the devices */
1031
1032     /* Note that if the Next() call succeeds but there are no monikers,
1033      * it will return S_FALSE (which is not a failure). Therefore, we check
1034      * that the return code is S_OK instead of using SUCCEEDED() macro. */
1035
1036     while( p_class_enum->Next( 1, &p_moniker, &i_fetched ) == S_OK )
1037     {
1038         /* Getting the property page to get the device name */
1039         IPropertyBag *p_bag;
1040         hr = p_moniker->BindToStorage( 0, 0, IID_IPropertyBag,
1041                                        (void **)&p_bag );
1042         if( SUCCEEDED(hr) )
1043         {
1044             VARIANT var;
1045             var.vt = VT_BSTR;
1046             hr = p_bag->Read( L"FriendlyName", &var, NULL );
1047             p_bag->Release();
1048             if( SUCCEEDED(hr) )
1049             {
1050                 int i_convert = ( lstrlenW( var.bstrVal ) + 1 ) * 2;
1051                 char *p_buf = (char *)alloca( i_convert ); p_buf[0] = 0;
1052                 WideCharToMultiByte( CP_ACP, 0, var.bstrVal, -1, p_buf,
1053                                      i_convert, NULL, NULL );
1054                 SysFreeString(var.bstrVal);
1055
1056                 if( p_listdevices ) p_listdevices->push_back( p_buf );
1057
1058                 if( p_devicename && *p_devicename == string(p_buf) )
1059                 {
1060                     /* Bind Moniker to a filter object */
1061                     hr = p_moniker->BindToObject( 0, 0, IID_IBaseFilter,
1062                                                   (void **)&p_base_filter );
1063                     if( FAILED(hr) )
1064                     {
1065                         msg_Err( p_this, "couldn't bind moniker to filter "
1066                                  "object (0x%lx)", hr );
1067                         p_moniker->Release();
1068                         p_class_enum->Release();
1069                         return NULL;
1070                     }
1071                     p_moniker->Release();
1072                     p_class_enum->Release();
1073                     return p_base_filter;
1074                 }
1075             }
1076         }
1077
1078         p_moniker->Release();
1079     }
1080
1081     p_class_enum->Release();
1082     return NULL;
1083 }
1084
1085 static size_t EnumDeviceCaps( vlc_object_t *p_this, IBaseFilter *p_filter,
1086                               int i_fourcc, int i_width, int i_height,
1087                               int i_channels, int i_samplespersec,
1088                               int i_bitspersample, AM_MEDIA_TYPE *mt,
1089                               size_t mt_max )
1090 {
1091     IEnumPins *p_enumpins;
1092     IPin *p_output_pin;
1093     IEnumMediaTypes *p_enummt;
1094     size_t mt_count = 0;
1095
1096     if( FAILED(p_filter->EnumPins( &p_enumpins )) )
1097     {
1098         msg_Dbg( p_this, "EnumDeviceCaps failed: no pin enumeration !");
1099         return 0;
1100     }
1101
1102     while( S_OK == p_enumpins->Next( 1, &p_output_pin, NULL ) )
1103     {
1104         PIN_INFO info;
1105
1106         if( S_OK == p_output_pin->QueryPinInfo( &info ) )
1107         {
1108             msg_Dbg( p_this, "EnumDeviceCaps: %s pin: %S",
1109                      info.dir == PINDIR_INPUT ? "input" : "output",
1110                      info.achName );
1111             if( info.pFilter ) info.pFilter->Release();
1112         }
1113
1114         p_output_pin->Release();
1115     }
1116
1117     p_enumpins->Reset();
1118
1119     while( !mt_count && p_enumpins->Next( 1, &p_output_pin, NULL ) == S_OK )
1120     {
1121         PIN_INFO info;
1122
1123         if( S_OK == p_output_pin->QueryPinInfo( &info ) )
1124         {
1125             if( info.pFilter ) info.pFilter->Release();
1126             if( info.dir == PINDIR_INPUT )
1127             {
1128                 p_output_pin->Release();
1129                 continue;
1130             }
1131             msg_Dbg( p_this, "EnumDeviceCaps: trying pin %S", info.achName );
1132         }
1133
1134         /* Probe pin */
1135         if( !SUCCEEDED( p_output_pin->EnumMediaTypes( &p_enummt ) ) )
1136         {
1137             p_output_pin->Release();
1138             continue;
1139         }
1140
1141         AM_MEDIA_TYPE *p_mt;
1142         while( p_enummt->Next( 1, &p_mt, NULL ) == S_OK )
1143         {
1144             int i_current_fourcc = GetFourCCFromMediaType( *p_mt );
1145             if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Video )
1146             {
1147                 int i_current_width = p_mt->pbFormat ?
1148                     ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biWidth :0;
1149                 int i_current_height = p_mt->pbFormat ?
1150                     ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biHeight :0;
1151                 if( i_current_height < 0 )
1152                     i_current_height = -i_current_height;
1153
1154                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
1155                          "accepts chroma: %4.4s, width:%i, height:%i",
1156                          (char *)&i_current_fourcc, i_current_width,
1157                          i_current_height );
1158
1159                 if( ( !i_fourcc || i_fourcc == i_current_fourcc ) &&
1160                     ( !i_width || i_width == i_current_width ) &&
1161                     ( !i_height || i_height == i_current_height ) &&
1162                     mt_count < mt_max )
1163                 {
1164                     /* Pick match */
1165                     mt[mt_count++] = *p_mt;
1166                 }
1167                 else FreeMediaType( *p_mt );
1168             }
1169             else if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Audio )
1170             {
1171                 int i_current_channels =
1172                     ((WAVEFORMATEX *)p_mt->pbFormat)->nChannels;
1173                 int i_current_samplespersec =
1174                     ((WAVEFORMATEX *)p_mt->pbFormat)->nSamplesPerSec;
1175                 int i_current_bitspersample =
1176                     ((WAVEFORMATEX *)p_mt->pbFormat)->wBitsPerSample;
1177
1178                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
1179                          "accepts format: %4.4s, channels:%i, "
1180                          "samples/sec:%i bits/sample:%i",
1181                          (char *)&i_current_fourcc, i_current_channels,
1182                          i_current_samplespersec, i_current_bitspersample);
1183
1184                 if( (!i_channels || i_channels == i_current_channels) &&
1185                     (!i_samplespersec ||
1186                      i_samplespersec == i_current_samplespersec) &&
1187                     (!i_bitspersample ||
1188                      i_bitspersample == i_current_bitspersample) &&
1189                     mt_count < mt_max )
1190                 {
1191                     /* Pick  match */
1192                     mt[mt_count++] = *p_mt;
1193
1194                     /* Setup a few properties like the audio latency */
1195                     IAMBufferNegotiation *p_ambuf;
1196                     if( SUCCEEDED( p_output_pin->QueryInterface(
1197                           IID_IAMBufferNegotiation, (void **)&p_ambuf ) ) )
1198                     {
1199                         ALLOCATOR_PROPERTIES AllocProp;
1200                         AllocProp.cbAlign = -1;
1201
1202                         /* 100 ms of latency */
1203                         AllocProp.cbBuffer = i_current_channels *
1204                           i_current_samplespersec *
1205                           i_current_bitspersample / 8 / 10;
1206
1207                         AllocProp.cbPrefix = -1;
1208                         AllocProp.cBuffers = -1;
1209                         p_ambuf->SuggestAllocatorProperties( &AllocProp );
1210                         p_ambuf->Release();
1211                     }
1212                 }
1213                 else FreeMediaType( *p_mt );
1214             }
1215             else if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Stream )
1216             {
1217                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
1218                          "accepts stream format: %4.4s",
1219                          (char *)&i_current_fourcc );
1220
1221                 if( ( !i_fourcc || i_fourcc == i_current_fourcc ) &&
1222                     mt_count < mt_max )
1223                 {
1224                     /* Pick match */
1225                     mt[mt_count++] = *p_mt;
1226                     i_fourcc = i_current_fourcc;
1227                 }
1228                 else FreeMediaType( *p_mt );
1229             }
1230             else
1231             {
1232                 char *psz_type = "unknown";
1233                 if( p_mt->majortype == MEDIATYPE_Video ) psz_type = "video";
1234                 if( p_mt->majortype == MEDIATYPE_Audio ) psz_type = "audio";
1235                 if( p_mt->majortype == MEDIATYPE_Stream ) psz_type = "stream";
1236                 msg_Dbg( p_this, "EnumDeviceCaps: input pin: unknown format "
1237                          "(%s %4.4s)", psz_type, (char *)&p_mt->subtype );
1238                 FreeMediaType( *p_mt );
1239             }
1240             CoTaskMemFree( (PVOID)p_mt );
1241         }
1242
1243         p_enummt->Release();
1244         p_output_pin->Release();
1245     }
1246
1247     p_enumpins->Release();
1248     return mt_count;
1249 }
1250
1251 /*****************************************************************************
1252  * ReadCompressed: reads compressed (MPEG/DV) data from the device.
1253  *****************************************************************************
1254  * Returns -1 in case of error, 0 in case of EOF, otherwise the number of
1255  * bytes.
1256  *****************************************************************************/
1257 static int ReadCompressed( access_t *p_access, uint8_t *p_buffer, int i_len )
1258 {
1259     access_sys_t   *p_sys = p_access->p_sys;
1260     dshow_stream_t *p_stream = NULL;
1261     VLCMediaSample  sample;
1262     int             i_data_size;
1263     uint8_t         *p_data;
1264
1265     /* Read 1 DV/MPEG frame (they contain the video and audio data) */
1266
1267     /* There must be only 1 elementary stream to produce a valid stream
1268      * of MPEG or DV data */
1269     p_stream = p_sys->pp_streams[0];
1270
1271     while( 1 )
1272     {
1273         if( p_access->b_die || p_access->b_error ) return 0;
1274
1275         /* Get new sample/frame from the elementary stream (blocking). */
1276         vlc_mutex_lock( &p_sys->lock );
1277
1278         if( p_stream->p_capture_filter->CustomGetPin()
1279               ->CustomGetSample( &sample ) != S_OK )
1280         {
1281             /* No data available. Wait until some data has arrived */
1282             vlc_cond_wait( &p_sys->wait, &p_sys->lock );
1283             vlc_mutex_unlock( &p_sys->lock );
1284             continue;
1285         }
1286
1287         vlc_mutex_unlock( &p_sys->lock );
1288
1289         /*
1290          * We got our sample
1291          */
1292         i_data_size = sample.p_sample->GetActualDataLength();
1293         sample.p_sample->GetPointer( &p_data );
1294
1295 #if 0
1296         msg_Info( p_access, "access read %i data_size %i", i_len, i_data_size );
1297 #endif
1298         i_data_size = __MIN( i_data_size, (int)i_len );
1299
1300         p_access->p_vlc->pf_memcpy( p_buffer, p_data, i_data_size );
1301
1302         sample.p_sample->Release();
1303
1304         /* The caller got what he wanted */
1305         return i_data_size;
1306     }
1307
1308     return 0; /* never reached */
1309 }
1310
1311 /****************************************************************************
1312  * Demux:
1313  ****************************************************************************/
1314 static int Demux( demux_t *p_demux )
1315 {
1316     access_sys_t *p_sys = (access_sys_t *)p_demux->p_sys;
1317     dshow_stream_t *p_stream = NULL;
1318     VLCMediaSample sample;
1319     int i_data_size, i_stream;
1320     uint8_t *p_data;
1321     block_t *p_block;
1322
1323     vlc_mutex_lock( &p_sys->lock );
1324
1325     /* Try to grab an audio sample (audio has a higher priority) */
1326     for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
1327     {
1328         p_stream = p_sys->pp_streams[i_stream];
1329         if( p_stream->mt.majortype == MEDIATYPE_Audio &&
1330             p_stream->p_capture_filter &&
1331             p_stream->p_capture_filter->CustomGetPin()
1332               ->CustomGetSample( &sample ) == S_OK )
1333         {
1334             break;
1335         }
1336     }
1337     /* Try to grab a video sample */
1338     if( i_stream == p_sys->i_streams )
1339     for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
1340     {
1341         p_stream = p_sys->pp_streams[i_stream];
1342         if( p_stream->p_capture_filter &&
1343             p_stream->p_capture_filter->CustomGetPin()
1344                 ->CustomGetSample( &sample ) == S_OK )
1345         {
1346             break;
1347         }
1348     }
1349
1350     vlc_mutex_unlock( &p_sys->lock );
1351
1352     if( i_stream == p_sys->i_streams )
1353     {
1354         /* Sleep so we do not consume all the cpu, 10ms seems
1355          * like a good value (100fps) */
1356         msleep( 10000 );
1357         return 1;
1358     }
1359
1360     /*
1361      * We got our sample
1362      */
1363     i_data_size = sample.p_sample->GetActualDataLength();
1364     sample.p_sample->GetPointer( &p_data );
1365
1366     REFERENCE_TIME i_pts, i_end_date;
1367     HRESULT hr = sample.p_sample->GetTime( &i_pts, &i_end_date );
1368     if( hr != VFW_S_NO_STOP_TIME && hr != S_OK ) i_pts = 0;
1369
1370     if( !i_pts )
1371     {
1372         if( p_stream->mt.majortype == MEDIATYPE_Video || !p_stream->b_pts )
1373         {
1374             /* Use our data timestamp */
1375             i_pts = sample.i_timestamp;
1376             p_stream->b_pts = VLC_TRUE;
1377         }
1378     }
1379
1380     i_pts /= 10; /* Dshow works with 100 nano-seconds resolution */
1381
1382 #if 0
1383     msg_Dbg( p_demux, "Read() stream: %i, size: %i, PTS: "I64Fd,
1384              i_stream, i_data_size, i_pts );
1385 #endif
1386
1387     p_block = block_New( p_demux, i_data_size );
1388     p_demux->p_vlc->pf_memcpy( p_block->p_buffer, p_data, i_data_size );
1389     p_block->i_pts = p_block->i_dts = i_pts;
1390     sample.p_sample->Release();
1391
1392     es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_pts > 0 ? i_pts : 0 );
1393     es_out_Send( p_demux->out, p_stream->p_es, p_block );
1394
1395     return 1;
1396 }
1397
1398 /*****************************************************************************
1399  * AccessControl:
1400  *****************************************************************************/
1401 static int AccessControl( access_t *p_access, int i_query, va_list args )
1402 {
1403     vlc_bool_t   *pb_bool;
1404     int          *pi_int;
1405     int64_t      *pi_64;
1406
1407     switch( i_query )
1408     {
1409     /* */
1410     case ACCESS_CAN_SEEK:
1411     case ACCESS_CAN_FASTSEEK:
1412     case ACCESS_CAN_PAUSE:
1413     case ACCESS_CAN_CONTROL_PACE:
1414         pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
1415         *pb_bool = VLC_FALSE;
1416         break;
1417
1418     /* */
1419     case ACCESS_GET_MTU:
1420         pi_int = (int*)va_arg( args, int * );
1421         *pi_int = 0;
1422         break;
1423
1424     case ACCESS_GET_PTS_DELAY:
1425         pi_64 = (int64_t*)va_arg( args, int64_t * );
1426         *pi_64 = (int64_t)var_GetInteger( p_access, "dshow-caching" ) * 1000;
1427         break;
1428
1429     /* */
1430     case ACCESS_SET_PAUSE_STATE:
1431     case ACCESS_GET_TITLE_INFO:
1432     case ACCESS_SET_TITLE:
1433     case ACCESS_SET_SEEKPOINT:
1434     case ACCESS_SET_PRIVATE_ID_STATE:
1435         return VLC_EGENERIC;
1436
1437     default:
1438         msg_Warn( p_access, "unimplemented query in control" );
1439         return VLC_EGENERIC;
1440     }
1441
1442     return VLC_SUCCESS;
1443 }
1444
1445 /****************************************************************************
1446  * DemuxControl:
1447  ****************************************************************************/
1448 static int DemuxControl( demux_t *p_demux, int i_query, va_list args )
1449 {
1450     vlc_bool_t *pb;
1451     int64_t    *pi64;
1452
1453     switch( i_query )
1454     {
1455     /* Special for access_demux */
1456     case DEMUX_CAN_PAUSE:
1457     case DEMUX_SET_PAUSE_STATE:
1458     case DEMUX_CAN_CONTROL_PACE:
1459         pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
1460         *pb = VLC_FALSE;
1461         return VLC_SUCCESS;
1462
1463     case DEMUX_GET_PTS_DELAY:
1464         pi64 = (int64_t*)va_arg( args, int64_t * );
1465         *pi64 = (int64_t)var_GetInteger( p_demux, "dshow-caching" ) * 1000;
1466         return VLC_SUCCESS;
1467
1468     case DEMUX_GET_TIME:
1469         pi64 = (int64_t*)va_arg( args, int64_t * );
1470         *pi64 = mdate();
1471         return VLC_SUCCESS;
1472
1473     /* TODO implement others */
1474     default:
1475         return VLC_EGENERIC;
1476     }
1477
1478     return VLC_EGENERIC;
1479 }
1480
1481 /*****************************************************************************
1482  * config variable callback
1483  *****************************************************************************/
1484 static int FindDevicesCallback( vlc_object_t *p_this, char const *psz_name,
1485                                vlc_value_t newval, vlc_value_t oldval, void * )
1486 {
1487     module_config_t *p_item;
1488     vlc_bool_t b_audio = VLC_FALSE;
1489     int i;
1490
1491     p_item = config_FindConfig( p_this, psz_name );
1492     if( !p_item ) return VLC_SUCCESS;
1493
1494     if( !strcmp( psz_name, "dshow-adev" ) ) b_audio = VLC_TRUE;
1495
1496     /* Clear-up the current list */
1497     if( p_item->i_list )
1498     {
1499         /* Keep the 2 first entries */
1500         for( i = 2; i < p_item->i_list; i++ )
1501         {
1502             free( p_item->ppsz_list[i] );
1503             free( p_item->ppsz_list_text[i] );
1504         }
1505         /* TODO: Remove when no more needed */
1506         p_item->ppsz_list[i] = NULL;
1507         p_item->ppsz_list_text[i] = NULL;
1508     }
1509     p_item->i_list = 2;
1510
1511     /* Find list of devices */
1512     list<string> list_devices;
1513
1514     /* Initialize OLE/COM */
1515     CoInitialize( 0 );
1516
1517     FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
1518
1519     /* Uninitialize OLE/COM */
1520     CoUninitialize();
1521
1522     if( !list_devices.size() ) return VLC_SUCCESS;
1523
1524     p_item->ppsz_list =
1525         (char **)realloc( p_item->ppsz_list,
1526                           (list_devices.size()+3) * sizeof(char *) );
1527     p_item->ppsz_list_text =
1528         (char **)realloc( p_item->ppsz_list_text,
1529                           (list_devices.size()+3) * sizeof(char *) );
1530
1531     list<string>::iterator iter;
1532     for( iter = list_devices.begin(), i = 2; iter != list_devices.end();
1533          iter++, i++ )
1534     {
1535         p_item->ppsz_list[i] = strdup( iter->c_str() );
1536         p_item->ppsz_list_text[i] = NULL;
1537         p_item->i_list++;
1538     }
1539     p_item->ppsz_list[i] = NULL;
1540     p_item->ppsz_list_text[i] = NULL;
1541
1542     /* Signal change to the interface */
1543     p_item->b_dirty = VLC_TRUE;
1544
1545     return VLC_SUCCESS;
1546 }
1547
1548 static int ConfigDevicesCallback( vlc_object_t *p_this, char const *psz_name,
1549                                vlc_value_t newval, vlc_value_t oldval, void * )
1550 {
1551     module_config_t *p_item;
1552     vlc_bool_t b_audio = VLC_FALSE;
1553
1554     /* Initialize OLE/COM */
1555     CoInitialize( 0 );
1556
1557     p_item = config_FindConfig( p_this, psz_name );
1558     if( !p_item ) return VLC_SUCCESS;
1559
1560     if( !strcmp( psz_name, "dshow-adev" ) ) b_audio = VLC_TRUE;
1561
1562     string devicename;
1563
1564     if( newval.psz_string && *newval.psz_string )
1565     {
1566         devicename = newval.psz_string;
1567     }
1568     else
1569     {
1570         /* If no device name was specified, pick the 1st one */
1571         list<string> list_devices;
1572
1573         /* Enumerate devices */
1574         FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
1575         if( !list_devices.size() ) return VLC_EGENERIC;
1576         devicename = *list_devices.begin();
1577     }
1578
1579     IBaseFilter *p_device_filter =
1580         FindCaptureDevice( p_this, &devicename, NULL, b_audio );
1581     if( p_device_filter )
1582     {
1583         ShowPropertyPage( p_device_filter );
1584     }
1585     else
1586     {
1587         /* Uninitialize OLE/COM */
1588         CoUninitialize();
1589
1590         msg_Err( p_this, "didn't find device: %s", devicename.c_str() );
1591         return VLC_EGENERIC;
1592     }
1593
1594     /* Uninitialize OLE/COM */
1595     CoUninitialize();
1596
1597     return VLC_SUCCESS;
1598 }
1599
1600 /*****************************************************************************
1601  * Properties
1602  *****************************************************************************/
1603 static void ShowPropertyPage( IUnknown *obj )
1604 {
1605     ISpecifyPropertyPages *p_spec;
1606     CAUUID cauuid;
1607
1608     HRESULT hr = obj->QueryInterface( IID_ISpecifyPropertyPages,
1609                                       (void **)&p_spec );
1610     if( FAILED(hr) ) return;
1611
1612     if( SUCCEEDED(p_spec->GetPages( &cauuid )) )
1613     {
1614         if( cauuid.cElems > 0 )
1615         {
1616             HWND hwnd_desktop = ::GetDesktopWindow();
1617
1618             OleCreatePropertyFrame( hwnd_desktop, 30, 30, NULL, 1, &obj,
1619                                     cauuid.cElems, cauuid.pElems, 0, 0, NULL );
1620
1621             CoTaskMemFree( cauuid.pElems );
1622         }
1623         p_spec->Release();
1624     }
1625 }
1626
1627 static void ShowDeviceProperties( vlc_object_t *p_this,
1628                                   ICaptureGraphBuilder2 *p_capture_graph,
1629                                   IBaseFilter *p_device_filter,
1630                                   vlc_bool_t b_audio )
1631 {
1632     HRESULT hr;
1633     msg_Dbg( p_this, "Configuring Device Properties" );
1634
1635     /*
1636      * Video or audio capture filter page
1637      */
1638     ShowPropertyPage( p_device_filter );
1639
1640     /*
1641      * Audio capture pin
1642      */
1643     if( p_capture_graph && b_audio )
1644     {
1645         IAMStreamConfig *p_SC;
1646
1647         msg_Dbg( p_this, "Showing WDM Audio Configuration Pages" );
1648
1649         hr = p_capture_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1650                                              &MEDIATYPE_Audio, p_device_filter,
1651                                              IID_IAMStreamConfig,
1652                                              (void **)&p_SC );
1653         if( SUCCEEDED(hr) )
1654         {
1655             ShowPropertyPage(p_SC);
1656             p_SC->Release();
1657         }
1658
1659         /*
1660          * TV Audio filter
1661          */
1662         IAMTVAudio *p_TVA;
1663         HRESULT hr = p_capture_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1664                                              &MEDIATYPE_Audio, p_device_filter,
1665                                              IID_IAMTVAudio, (void **)&p_TVA );
1666         if( SUCCEEDED(hr) )
1667         {
1668             ShowPropertyPage(p_TVA);
1669             p_TVA->Release();
1670         }
1671     }
1672
1673     /*
1674      * Video capture pin
1675      */
1676     if( p_capture_graph && !b_audio )
1677     {
1678         IAMStreamConfig *p_SC;
1679
1680         msg_Dbg( p_this, "Showing WDM Video Configuration Pages" );
1681
1682         hr = p_capture_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1683                                              &MEDIATYPE_Interleaved,
1684                                              p_device_filter,
1685                                              IID_IAMStreamConfig,
1686                                              (void **)&p_SC );
1687         if( FAILED(hr) )
1688         {
1689             hr = p_capture_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1690                                                  &MEDIATYPE_Video,
1691                                                  p_device_filter,
1692                                                  IID_IAMStreamConfig,
1693                                                  (void **)&p_SC );
1694         }
1695
1696         if( SUCCEEDED(hr) )
1697         {
1698             ShowPropertyPage(p_SC);
1699             p_SC->Release();
1700         }
1701     }
1702 }
1703
1704 static void ShowTunerProperties( vlc_object_t *p_this,
1705                                  ICaptureGraphBuilder2 *p_capture_graph,
1706                                  IBaseFilter *p_device_filter,
1707                                  vlc_bool_t b_audio )
1708 {
1709     HRESULT hr;
1710     msg_Dbg( p_this, "Configuring Tuner Properties" );
1711
1712     if( p_capture_graph && !b_audio )
1713     {
1714         IAMTVTuner *p_TV;
1715         hr = p_capture_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1716                                              &MEDIATYPE_Interleaved,
1717                                              p_device_filter,
1718                                              IID_IAMTVTuner, (void **)&p_TV );
1719         if( FAILED(hr) )
1720         {
1721             hr = p_capture_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
1722                                                  &MEDIATYPE_Video,
1723                                                  p_device_filter,
1724                                                  IID_IAMTVTuner,
1725                                                  (void **)&p_TV );
1726         }
1727
1728         if( SUCCEEDED(hr) )
1729         {
1730             ShowPropertyPage(p_TV);
1731             p_TV->Release();
1732         }
1733     }
1734 }