dshow.cpp 76.8 KB
Newer Older
Gildas Bazin's avatar
 
Gildas Bazin committed
1
/*****************************************************************************
2
 * dshow.cpp : DirectShow access module for vlc
Gildas Bazin's avatar
 
Gildas Bazin committed
3
 *****************************************************************************
4
 * Copyright (C) 2002, 2003 the VideoLAN team
5
 * $Id$
Gildas Bazin's avatar
 
Gildas Bazin committed
6
 *
7
 * Author: Gildas Bazin <gbazin@videolan.org>
8
 *         Damien Fouilleul <damienf@videolan.org>
Gildas Bazin's avatar
 
Gildas Bazin committed
9 10 11 12 13 14 15 16 17 18 19 20 21
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
Antoine Cellerier's avatar
Antoine Cellerier committed
22
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
Gildas Bazin's avatar
 
Gildas Bazin committed
23 24 25 26 27 28 29 30 31
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <vlc/vlc.h>
Clément Stenac's avatar
Clément Stenac committed
32 33
#include <vlc_input.h>
#include <vlc_access.h>
34
#include <vlc_demux.h>
Clément Stenac's avatar
Clément Stenac committed
35
#include <vlc_vout.h>
Clément Stenac's avatar
Round 2  
Clément Stenac committed
36
#include <vlc_interface.h>
Gildas Bazin's avatar
 
Gildas Bazin committed
37

Gildas Bazin's avatar
Gildas Bazin committed
38
#include "common.h"
Gildas Bazin's avatar
 
Gildas Bazin committed
39 40
#include "filter.h"

Gildas Bazin's avatar
 
Gildas Bazin committed
41 42 43
/*****************************************************************************
 * Access: local prototypes
 *****************************************************************************/
44
static block_t *ReadCompressed( access_t * );
45
static int AccessControl ( access_t *, int, va_list );
Gildas Bazin's avatar
 
Gildas Bazin committed
46

Gildas Bazin's avatar
Gildas Bazin committed
47 48 49 50
static int Demux       ( demux_t * );
static int DemuxControl( demux_t *, int, va_list );

static int OpenDevice( vlc_object_t *, access_sys_t *, string, vlc_bool_t );
Gildas Bazin's avatar
 
Gildas Bazin committed
51 52
static IBaseFilter *FindCaptureDevice( vlc_object_t *, string *,
                                       list<string> *, vlc_bool_t );
53
static size_t EnumDeviceCaps( vlc_object_t *, IBaseFilter *,
54 55
                              int, int, int, int, int, int,
                              AM_MEDIA_TYPE *mt, size_t );
Gildas Bazin's avatar
Gildas Bazin committed
56 57
static bool ConnectFilters( vlc_object_t *, access_sys_t *,
                            IBaseFilter *, CaptureFilter * );
Gildas Bazin's avatar
 
Gildas Bazin committed
58 59
static int FindDevicesCallback( vlc_object_t *, char const *,
                                vlc_value_t, vlc_value_t, void * );
60 61
static int ConfigDevicesCallback( vlc_object_t *, char const *,
                                  vlc_value_t, vlc_value_t, void * );
Gildas Bazin's avatar
 
Gildas Bazin committed
62

63 64
static void ShowPropertyPage( IUnknown * );
static void ShowDeviceProperties( vlc_object_t *, ICaptureGraphBuilder2 *, 
65
                                  IBaseFilter *, vlc_bool_t );
66 67
static void ShowTunerProperties( vlc_object_t *, ICaptureGraphBuilder2 *, 
                                 IBaseFilter *, vlc_bool_t );
68 69
static void ConfigTuner( vlc_object_t *, ICaptureGraphBuilder2 *,
                         IBaseFilter * );
Gildas Bazin's avatar
 
Gildas Bazin committed
70

Gildas Bazin's avatar
 
Gildas Bazin committed
71
/*****************************************************************************
72
 * Module descriptor
Gildas Bazin's avatar
 
Gildas Bazin committed
73
 *****************************************************************************/
74 75 76 77
static const char *ppsz_vdev[] = { "", "none" };
static const char *ppsz_vdev_text[] = { N_("Default"), N_("None") };
static const char *ppsz_adev[] = { "", "none" };
static const char *ppsz_adev_text[] = { N_("Default"), N_("None") };
78
static int  pi_tuner_input[] = { 0, 1, 2 };
79
static const char *ppsz_tuner_input_text[] =
80
    {N_("Default"), N_("Cable"), N_("Antenna")};
81
static const int pi_amtuner_mode[]  = { AMTUNER_MODE_DEFAULT,
82 83 84 85
                                 AMTUNER_MODE_TV,
                                 AMTUNER_MODE_FM_RADIO,
                                 AMTUNER_MODE_AM_RADIO,
                                 AMTUNER_MODE_DSS };
86
static const char *ppsz_amtuner_mode_text[] = { N_("Default"),
87 88 89 90
                                          N_("TV"),
                                          N_("FM radio"),
                                          N_("AM radio"),
                                          N_("DSS") };
91

Gildas Bazin's avatar
 
Gildas Bazin committed
92 93
#define CACHING_TEXT N_("Caching value in ms")
#define CACHING_LONGTEXT N_( \
94
    "Caching value for DirectShow streams. " \
Clément Stenac's avatar
Clément Stenac committed
95
    "This value should be set in millisecondss." )
96 97
#define VDEV_TEXT N_("Video device name")
#define VDEV_LONGTEXT N_( \
Clément Stenac's avatar
Clément Stenac committed
98
    "Name of the video device that will be used by the " \
99 100
    "DirectShow plugin. If you don't specify anything, the default device " \
    "will be used.")
Clément Stenac's avatar
Clément Stenac committed
101
/// \bug [String] size stuff should be on video !
102 103
#define ADEV_TEXT N_("Audio device name")
#define ADEV_LONGTEXT N_( \
Clément Stenac's avatar
Clément Stenac committed
104
    "Name of the audio device that will be used by the " \
105
    "DirectShow plugin. If you don't specify anything, the default device " \
106
    "will be used. You can specify a standard size (cif, d1, ...) or <width>x<height>")
107 108
#define SIZE_TEXT N_("Video size")
#define SIZE_LONGTEXT N_( \
Clément Stenac's avatar
Clément Stenac committed
109
    "Size of the video that will be displayed by the " \
110 111 112 113 114
    "DirectShow plugin. If you don't specify anything the default size for " \
    "your device will be used.")
#define CHROMA_TEXT N_("Video input chroma format")
#define CHROMA_LONGTEXT N_( \
    "Force the DirectShow video input to use a specific chroma format " \
115
    "(eg. I420 (default), RV24, etc.)")
116 117 118
#define FPS_TEXT N_("Video input frame rate")
#define FPS_LONGTEXT N_( \
    "Force the DirectShow video input to use a specific frame rate" \
Christophe Mutricy's avatar
Christophe Mutricy committed
119
    "(eg. 0 means default, 25, 29.97, 50, 59.94, etc.)")
120
#define CONFIG_TEXT N_("Device properties")
Gildas Bazin's avatar
 
Gildas Bazin committed
121
#define CONFIG_LONGTEXT N_( \
122 123
    "Show the properties dialog of the selected device before starting the " \
    "stream.")
124 125 126
#define TUNER_TEXT N_("Tuner properties")
#define TUNER_LONGTEXT N_( \
    "Show the tuner properties [channel selection] page." )
127 128
#define CHANNEL_TEXT N_("Tuner TV Channel")
#define CHANNEL_LONGTEXT N_( \
Clément Stenac's avatar
Clément Stenac committed
129
    "Set the TV channel the tuner will set to " \
130 131 132
    "(0 means default)." )
#define COUNTRY_TEXT N_("Tuner country code")
#define COUNTRY_LONGTEXT N_( \
Clément Stenac's avatar
Clément Stenac committed
133
    "Set the tuner country code that establishes the current " \
134 135 136
    "channel-to-frequency mapping (0 means default)." )
#define TUNER_INPUT_TEXT N_("Tuner input type")
#define TUNER_INPUT_LONGTEXT N_( \
Clément Stenac's avatar
Clément Stenac committed
137
    "Select the tuner input type (Cable/Antenna)." )
138 139
#define VIDEO_IN_TEXT N_("Video input pin")
#define VIDEO_IN_LONGTEXT N_( \
Clément Stenac's avatar
Clément Stenac committed
140 141 142 143
  "Select the video input source, such as composite, s-video, " \
  "or tuner. Since these settings are hardware-specfic, you should find good " \
  "settings in the \"Device config\" area, and use those numbers here. -1 " \
  "means that settings will not be changed.")
144 145
#define AUDIO_IN_TEXT N_("Audio input pin")
#define AUDIO_IN_LONGTEXT N_( \
Clément Stenac's avatar
Clément Stenac committed
146
  "Select the audio input source. See the \"video input\" option." )
147 148
#define VIDEO_OUT_TEXT N_("Video output pin")
#define VIDEO_OUT_LONGTEXT N_( \
Clément Stenac's avatar
Clément Stenac committed
149
  "Select the video output type. See the \"video input\" option." )
150 151
#define AUDIO_OUT_TEXT N_("Audio output pin")
#define AUDIO_OUT_LONGTEXT N_( \
Clément Stenac's avatar
Clément Stenac committed
152
  "Select the audio output type. See the \"video input\" option." )
Gildas Bazin's avatar
 
Gildas Bazin committed
153

154
#define AMTUNER_MODE_TEXT N_("AM Tuner mode")
155
#define AMTUNER_MODE_LONGTEXT N_( \
156 157
    "AM Tuner mode. Can be one of DEFAULT, TV, AM_RADIO, FM_RADIO or DSS.")

Gildas Bazin's avatar
Gildas Bazin committed
158 159 160
static int  CommonOpen ( vlc_object_t *, access_sys_t *, vlc_bool_t );
static void CommonClose( vlc_object_t *, access_sys_t * );

161 162 163 164 165 166
static int  AccessOpen ( vlc_object_t * );
static void AccessClose( vlc_object_t * );

static int  DemuxOpen  ( vlc_object_t * );
static void DemuxClose ( vlc_object_t * );

Gildas Bazin's avatar
 
Gildas Bazin committed
167
vlc_module_begin();
168
    set_shortname( _("DirectShow") );
Gildas Bazin's avatar
 
Gildas Bazin committed
169
    set_description( _("DirectShow input") );
Clément Stenac's avatar
Clément Stenac committed
170 171
    set_category( CAT_INPUT );
    set_subcategory( SUBCAT_INPUT_ACCESS );
172
    add_integer( "dshow-caching", (mtime_t)(0.2*CLOCK_FREQ) / 1000, NULL,
Gildas Bazin's avatar
 
Gildas Bazin committed
173
                 CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
174

175
    add_string( "dshow-vdev", NULL, NULL, VDEV_TEXT, VDEV_LONGTEXT, VLC_FALSE);
176
        change_string_list( ppsz_vdev, ppsz_vdev_text, FindDevicesCallback );
177 178
        change_action_add( FindDevicesCallback, N_("Refresh list") );
        change_action_add( ConfigDevicesCallback, N_("Configure") );
179

180
    add_string( "dshow-adev", NULL, NULL, ADEV_TEXT, ADEV_LONGTEXT, VLC_FALSE);
181
        change_string_list( ppsz_adev, ppsz_adev_text, FindDevicesCallback );
182 183
        change_action_add( FindDevicesCallback, N_("Refresh list") );
        change_action_add( ConfigDevicesCallback, N_("Configure") );
184

185
    add_string( "dshow-size", NULL, NULL, SIZE_TEXT, SIZE_LONGTEXT, VLC_FALSE);
186

187 188
    add_string( "dshow-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
                VLC_TRUE );
Gildas Bazin's avatar
 
Gildas Bazin committed
189

190 191 192
    add_float( "dshow-fps", 0.0f, NULL, FPS_TEXT, FPS_LONGTEXT,
                VLC_TRUE );

Gildas Bazin's avatar
 
Gildas Bazin committed
193
    add_bool( "dshow-config", VLC_FALSE, NULL, CONFIG_TEXT, CONFIG_LONGTEXT,
194
              VLC_TRUE );
Gildas Bazin's avatar
 
Gildas Bazin committed
195

196
    add_bool( "dshow-tuner", VLC_FALSE, NULL, TUNER_TEXT, TUNER_LONGTEXT,
197
              VLC_TRUE );
198

199 200 201 202 203 204 205 206 207 208
    add_integer( "dshow-tuner-channel", 0, NULL, CHANNEL_TEXT,
                 CHANNEL_LONGTEXT, VLC_TRUE );

    add_integer( "dshow-tuner-country", 0, NULL, COUNTRY_TEXT,
                 COUNTRY_LONGTEXT, VLC_TRUE );

    add_integer( "dshow-tuner-input", 0, NULL, TUNER_INPUT_TEXT,
                 TUNER_INPUT_LONGTEXT, VLC_TRUE );
        change_integer_list( pi_tuner_input, ppsz_tuner_input_text, 0 );

209
    add_integer( "dshow-video-input",  -1, NULL, VIDEO_IN_TEXT,
210
                 VIDEO_IN_LONGTEXT, VLC_TRUE );
211 212

    add_integer( "dshow-audio-input",  -1, NULL, AUDIO_IN_TEXT,
213
                 AUDIO_IN_LONGTEXT, VLC_TRUE );
214 215

    add_integer( "dshow-video-output", -1, NULL, VIDEO_OUT_TEXT,
216
                 VIDEO_OUT_LONGTEXT, VLC_TRUE );
217 218

    add_integer( "dshow-audio-output", -1, NULL, AUDIO_OUT_TEXT,
219
                 AUDIO_OUT_LONGTEXT, VLC_TRUE );
220

221
    add_integer( "dshow-amtuner-mode", AMTUNER_MODE_TV, NULL,
222 223 224
                AMTUNER_MODE_TEXT, AMTUNER_MODE_LONGTEXT, VLC_FALSE);
        change_integer_list( pi_amtuner_mode, ppsz_amtuner_mode_text, 0 );

Gildas Bazin's avatar
 
Gildas Bazin committed
225
    add_shortcut( "dshow" );
Gildas Bazin's avatar
Gildas Bazin committed
226 227
    set_capability( "access_demux", 0 );
    set_callbacks( DemuxOpen, DemuxClose );
Gildas Bazin's avatar
 
Gildas Bazin committed
228 229

    add_submodule();
Gildas Bazin's avatar
Gildas Bazin committed
230
    set_description( _("DirectShow input") );
Gildas Bazin's avatar
 
Gildas Bazin committed
231
    add_shortcut( "dshow" );
Gildas Bazin's avatar
Gildas Bazin committed
232 233
    set_capability( "access2", 0 );
    set_callbacks( AccessOpen, AccessClose );
Gildas Bazin's avatar
 
Gildas Bazin committed
234 235 236

vlc_module_end();

Gildas Bazin's avatar
Gildas Bazin committed
237
/*****************************************************************************
Gildas Bazin's avatar
 
Gildas Bazin committed
238
 * DirectShow elementary stream descriptor
Gildas Bazin's avatar
Gildas Bazin committed
239
 *****************************************************************************/
Gildas Bazin's avatar
 
Gildas Bazin committed
240 241 242 243 244 245 246 247 248 249 250 251 252 253
typedef struct dshow_stream_t
{
    string          devicename;
    IBaseFilter     *p_device_filter;
    CaptureFilter   *p_capture_filter;
    AM_MEDIA_TYPE   mt;

    union
    {
      VIDEOINFOHEADER video;
      WAVEFORMATEX    audio;

    } header;

Gildas Bazin's avatar
Gildas Bazin committed
254 255 256
    int             i_fourcc;
    es_out_id_t     *p_es;

257
    vlc_bool_t      b_pts;
Gildas Bazin's avatar
 
Gildas Bazin committed
258 259
} dshow_stream_t;

Gildas Bazin's avatar
Gildas Bazin committed
260
/*****************************************************************************
261
 * DirectShow utility functions
Gildas Bazin's avatar
Gildas Bazin committed
262
 *****************************************************************************/
263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316
static void CreateDirectShowGraph( access_sys_t *p_sys )
{
    p_sys->i_crossbar_route_depth = 0;

    /* Create directshow filter graph */
    if( SUCCEEDED( CoCreateInstance( CLSID_FilterGraph, 0, CLSCTX_INPROC,
                       (REFIID)IID_IFilterGraph, (void **)&p_sys->p_graph) ) )
    {
        /* Create directshow capture graph builder if available */
        if( SUCCEEDED( CoCreateInstance( CLSID_CaptureGraphBuilder2, 0,
                         CLSCTX_INPROC, (REFIID)IID_ICaptureGraphBuilder2,
                         (void **)&p_sys->p_capture_graph_builder2 ) ) )
        {
            p_sys->p_capture_graph_builder2->
                SetFiltergraph((IGraphBuilder *)p_sys->p_graph);
        }

        p_sys->p_graph->QueryInterface( IID_IMediaControl,
                                        (void **)&p_sys->p_control );
    }
}

static void DeleteDirectShowGraph( access_sys_t *p_sys )
{
    DeleteCrossbarRoutes( p_sys );

    /* Remove filters from graph */
    for( int i = 0; i < p_sys->i_streams; i++ )
    {
        p_sys->p_graph->RemoveFilter( p_sys->pp_streams[i]->p_capture_filter );
        p_sys->p_graph->RemoveFilter( p_sys->pp_streams[i]->p_device_filter );
        p_sys->pp_streams[i]->p_capture_filter->Release();
        p_sys->pp_streams[i]->p_device_filter->Release();
    }

    /* Release directshow objects */
    if( p_sys->p_control )
    {
        p_sys->p_control->Release();
        p_sys->p_control = NULL;
    }
    if( p_sys->p_capture_graph_builder2 )
    {
        p_sys->p_capture_graph_builder2->Release();
        p_sys->p_capture_graph_builder2 = NULL;
    }

    if( p_sys->p_graph )
    {
        p_sys->p_graph->Release();
        p_sys->p_graph = NULL;
    }
}

Gildas Bazin's avatar
 
Gildas Bazin committed
317
/*****************************************************************************
Gildas Bazin's avatar
Gildas Bazin committed
318
 * CommonOpen: open direct show device
Gildas Bazin's avatar
 
Gildas Bazin committed
319
 *****************************************************************************/
Gildas Bazin's avatar
Gildas Bazin committed
320 321
static int CommonOpen( vlc_object_t *p_this, access_sys_t *p_sys,
                       vlc_bool_t b_access_demux )
Gildas Bazin's avatar
 
Gildas Bazin committed
322
{
323
    vlc_value_t  val;
Gildas Bazin's avatar
Gildas Bazin committed
324
    int i;
Gildas Bazin's avatar
 
Gildas Bazin committed
325

326
    /* Get/parse options and open device(s) */
Gildas Bazin's avatar
 
Gildas Bazin committed
327
    string vdevname, adevname;
328
    int i_width = 0, i_height = 0, i_chroma = 0;
Gildas Bazin's avatar
Gildas Bazin committed
329
    vlc_bool_t b_audio = VLC_TRUE;
Gildas Bazin's avatar
 
Gildas Bazin committed
330

331 332
    var_Create( p_this, "dshow-config", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Create( p_this, "dshow-tuner", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
Gildas Bazin's avatar
Gildas Bazin committed
333 334
    var_Create( p_this, "dshow-vdev", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
    var_Get( p_this, "dshow-vdev", &val );
335 336
    if( val.psz_string ) vdevname = string( val.psz_string );
    if( val.psz_string ) free( val.psz_string );
Gildas Bazin's avatar
 
Gildas Bazin committed
337

Gildas Bazin's avatar
Gildas Bazin committed
338 339
    var_Create( p_this, "dshow-adev", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
    var_Get( p_this, "dshow-adev", &val );
340 341 342
    if( val.psz_string ) adevname = string( val.psz_string );
    if( val.psz_string ) free( val.psz_string );

Gildas Bazin's avatar
Gildas Bazin committed
343 344
    static struct {char *psz_size; int  i_width; int  i_height;} size_table[] =
    { { "subqcif", 128, 96 }, { "qsif", 160, 120 }, { "qcif", 176, 144 },
345
      { "sif", 320, 240 }, { "cif", 352, 288 }, { "d1", 640, 480 },
Gildas Bazin's avatar
Gildas Bazin committed
346 347 348 349 350
      { 0, 0, 0 },
    };

    var_Create( p_this, "dshow-size", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
    var_Get( p_this, "dshow-size", &val );
351
    if( val.psz_string && *val.psz_string )
Gildas Bazin's avatar
 
Gildas Bazin committed
352
    {
Gildas Bazin's avatar
Gildas Bazin committed
353
        for( i = 0; size_table[i].psz_size; i++ )
354
        {
Gildas Bazin's avatar
Gildas Bazin committed
355 356 357 358 359 360
            if( !strcmp( val.psz_string, size_table[i].psz_size ) )
            {
                i_width = size_table[i].i_width;
                i_height = size_table[i].i_height;
                break;
            }
361
        }
Gildas Bazin's avatar
Gildas Bazin committed
362
        if( !size_table[i].psz_size ) /* Try to parse "WidthxHeight" */
363 364 365 366
        {
            char *psz_parser;
            i_width = strtol( val.psz_string, &psz_parser, 0 );
            if( *psz_parser == 'x' || *psz_parser == 'X')
Gildas Bazin's avatar
 
Gildas Bazin committed
367
            {
368
                i_height = strtol( psz_parser + 1, &psz_parser, 0 );
Gildas Bazin's avatar
 
Gildas Bazin committed
369
            }
Clément Stenac's avatar
Clément Stenac committed
370
            msg_Dbg( p_this, "width x height %dx%d", i_width, i_height );
Gildas Bazin's avatar
 
Gildas Bazin committed
371 372
        }
    }
373
    if( val.psz_string ) free( val.psz_string );
Gildas Bazin's avatar
 
Gildas Bazin committed
374

375
    p_sys->b_chroma = VLC_FALSE;
Gildas Bazin's avatar
Gildas Bazin committed
376 377
    var_Create( p_this, "dshow-chroma", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
    var_Get( p_this, "dshow-chroma", &val );
378 379 380 381
    if( val.psz_string && strlen( val.psz_string ) >= 4 )
    {
        i_chroma = VLC_FOURCC( val.psz_string[0], val.psz_string[1],
                               val.psz_string[2], val.psz_string[3] );
382
        p_sys->b_chroma = VLC_TRUE;
383 384
    }
    if( val.psz_string ) free( val.psz_string );
Gildas Bazin's avatar
 
Gildas Bazin committed
385

386
    var_Create( p_this, "dshow-fps", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
387 388 389 390 391 392 393
    var_Create( p_this, "dshow-tuner-channel",
                VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
    var_Create( p_this, "dshow-tuner-country",
                VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
    var_Create( p_this, "dshow-tuner-input",
                VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );

394 395 396
    var_Create( p_this, "dshow-amtuner-mode",
                VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );

Gildas Bazin's avatar
Gildas Bazin committed
397
    var_Create( p_this, "dshow-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
Gildas Bazin's avatar
 
Gildas Bazin committed
398

399 400 401 402 403
    var_Create( p_this, "dshow-video-input", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
    var_Create( p_this, "dshow-audio-input", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
    var_Create( p_this, "dshow-video-output", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
    var_Create( p_this, "dshow-audio-output", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );

Gildas Bazin's avatar
 
Gildas Bazin committed
404
    /* Initialize OLE/COM */
405
    CoInitialize( 0 );
Gildas Bazin's avatar
 
Gildas Bazin committed
406

Gildas Bazin's avatar
 
Gildas Bazin committed
407 408
    /* Initialize some data */
    p_sys->i_streams = 0;
409
    p_sys->pp_streams = 0;
Gildas Bazin's avatar
 
Gildas Bazin committed
410 411 412
    p_sys->i_width = i_width;
    p_sys->i_height = i_height;
    p_sys->i_chroma = i_chroma;
Gildas Bazin's avatar
 
Gildas Bazin committed
413

414 415 416
    p_sys->p_graph = NULL;
    p_sys->p_capture_graph_builder2 = NULL;
    p_sys->p_control = NULL;
Gildas Bazin's avatar
 
Gildas Bazin committed
417

418 419 420
    vlc_mutex_init( p_this, &p_sys->lock );
    vlc_cond_init( p_this, &p_sys->wait );

421 422
    /* Build directshow graph */
    CreateDirectShowGraph( p_sys );
Gildas Bazin's avatar
 
Gildas Bazin committed
423

Gildas Bazin's avatar
Gildas Bazin committed
424
    if( OpenDevice( p_this, p_sys, vdevname, 0 ) != VLC_SUCCESS )
Gildas Bazin's avatar
 
Gildas Bazin committed
425
    {
Gildas Bazin's avatar
Gildas Bazin committed
426
        msg_Err( p_this, "can't open video");
Gildas Bazin's avatar
 
Gildas Bazin committed
427
    }
Gildas Bazin's avatar
Gildas Bazin committed
428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443
    else
    {
        /* Check if we can handle the demuxing ourselves or need to spawn
         * a demuxer module */
        dshow_stream_t *p_stream = p_sys->pp_streams[p_sys->i_streams-1];

        if( p_stream->mt.majortype == MEDIATYPE_Video )
        {
            if( /* Raw DV stream */
                p_stream->i_fourcc == VLC_FOURCC('d','v','s','l') ||
                p_stream->i_fourcc == VLC_FOURCC('d','v','s','d') ||
                p_stream->i_fourcc == VLC_FOURCC('d','v','h','d') ||
                /* Raw MPEG video stream */
                p_stream->i_fourcc == VLC_FOURCC('m','p','2','v') )
            {
                b_audio = VLC_FALSE;
444 445 446 447

                if( b_access_demux )
                {
                    /* Let the access (only) take care of that */
448
                    return VLC_EGENERIC;
449
                }
Gildas Bazin's avatar
Gildas Bazin committed
450 451
            }
        }
Gildas Bazin's avatar
 
Gildas Bazin committed
452

453 454 455 456 457 458 459 460 461
        if( p_stream->mt.majortype == MEDIATYPE_Stream )
        {
            b_audio = VLC_FALSE;

            if( b_access_demux )
            {
                /* Let the access (only) take care of that */
                return VLC_EGENERIC;
            }
462 463 464 465 466 467 468 469 470

            var_Get( p_this, "dshow-tuner", &val );
            if( val.b_bool )
            {
                /* FIXME: we do MEDIATYPE_Stream here so we don't do
                 * it twice. */
                ShowTunerProperties( p_this, p_sys->p_capture_graph_builder2,
                                     p_stream->p_device_filter, 0 );
            }
471
        }
Gildas Bazin's avatar
Gildas Bazin committed
472 473 474
    }

    if( b_audio && OpenDevice( p_this, p_sys, adevname, 1 ) != VLC_SUCCESS )
Gildas Bazin's avatar
 
Gildas Bazin committed
475
    {
Gildas Bazin's avatar
Gildas Bazin committed
476
        msg_Err( p_this, "can't open audio");
Gildas Bazin's avatar
 
Gildas Bazin committed
477
    }
Gildas Bazin's avatar
Gildas Bazin committed
478

479
    for( i = p_sys->i_crossbar_route_depth-1; i >= 0 ; --i )
Gildas Bazin's avatar
 
Gildas Bazin committed
480
    {
481
            var_Get( p_this, "dshow-video-input", &val );
482
            if( val.i_int >= 0 )
483 484
                    p_sys->crossbar_routes[i].VideoInputIndex=val.i_int;
            var_Get( p_this, "dshow-video-output", &val );
485
            if( val.i_int >= 0 )
486 487
                    p_sys->crossbar_routes[i].VideoOutputIndex=val.i_int;
            var_Get( p_this, "dshow-audio-input", &val );
488
            if( val.i_int >= 0 )
489 490
                    p_sys->crossbar_routes[i].AudioInputIndex=val.i_int;
            var_Get( p_this, "dshow-audio-output", &val );
491
            if( val.i_int >= 0 )
492 493
                    p_sys->crossbar_routes[i].AudioOutputIndex=val.i_int;

494 495 496 497 498
        IAMCrossbar *pXbar = p_sys->crossbar_routes[i].pXbar;
        LONG VideoInputIndex = p_sys->crossbar_routes[i].VideoInputIndex;
        LONG VideoOutputIndex = p_sys->crossbar_routes[i].VideoOutputIndex;
        LONG AudioInputIndex = p_sys->crossbar_routes[i].AudioInputIndex;
        LONG AudioOutputIndex = p_sys->crossbar_routes[i].AudioOutputIndex;
Gildas Bazin's avatar
 
Gildas Bazin committed
499

500 501
        if( SUCCEEDED(pXbar->Route(VideoOutputIndex, VideoInputIndex)) )
        {
Clément Stenac's avatar
Clément Stenac committed
502 503
            msg_Dbg( p_this, "crossbar at depth %d, routed video "
                     "output %ld to video input %ld", i, VideoOutputIndex,
504
                     VideoInputIndex );
Gildas Bazin's avatar
 
Gildas Bazin committed
505

506 507 508 509 510
            if( AudioOutputIndex != -1 && AudioInputIndex != -1 )
            {
                if( SUCCEEDED( pXbar->Route(AudioOutputIndex,
                                            AudioInputIndex)) )
                {
Clément Stenac's avatar
Clément Stenac committed
511 512
                    msg_Dbg(p_this, "crossbar at depth %d, routed audio "
                            "output %ld to audio input %ld", i,
513 514 515 516 517 518
                            AudioOutputIndex, AudioInputIndex );
                }
            }
        }
    }

519 520 521 522
    /*
    ** Show properties pages from other filters in graph
    */
    var_Get( p_this, "dshow-config", &val );
523
    if( val.b_bool )
524 525 526 527 528
    {
        for( i = p_sys->i_crossbar_route_depth-1; i >= 0 ; --i )
        {
            IAMCrossbar *pXbar = p_sys->crossbar_routes[i].pXbar;
            IBaseFilter *p_XF;
529 530 531

            if( SUCCEEDED( pXbar->QueryInterface( IID_IBaseFilter,
                                                  (void **)&p_XF ) ) )
532 533 534 535
            {
                ShowPropertyPage( p_XF );
                p_XF->Release();
            }
536
        }
537 538
    }

Gildas Bazin's avatar
 
Gildas Bazin committed
539 540
    /* Initialize some data */
    p_sys->i_current_stream = 0;
541

Gildas Bazin's avatar
Gildas Bazin committed
542
    if( !p_sys->i_streams ) return VLC_EGENERIC;
Gildas Bazin's avatar
 
Gildas Bazin committed
543

Gildas Bazin's avatar
 
Gildas Bazin committed
544 545 546 547
    return VLC_SUCCESS;
}

/*****************************************************************************
Gildas Bazin's avatar
Gildas Bazin committed
548
 * DemuxOpen: open direct show device as an access_demux module
Gildas Bazin's avatar
 
Gildas Bazin committed
549
 *****************************************************************************/
Gildas Bazin's avatar
Gildas Bazin committed
550
static int DemuxOpen( vlc_object_t *p_this )
Gildas Bazin's avatar
 
Gildas Bazin committed
551
{
Gildas Bazin's avatar
Gildas Bazin committed
552 553 554
    demux_t      *p_demux = (demux_t *)p_this;
    access_sys_t *p_sys;
    int i;
Gildas Bazin's avatar
 
Gildas Bazin committed
555

Gildas Bazin's avatar
Gildas Bazin committed
556 557 558
    p_sys = (access_sys_t *)malloc( sizeof( access_sys_t ) );
    memset( p_sys, 0, sizeof( access_sys_t ) );
    p_demux->p_sys = (demux_sys_t *)p_sys;
Gildas Bazin's avatar
 
Gildas Bazin committed
559

Gildas Bazin's avatar
Gildas Bazin committed
560 561 562 563 564
    if( CommonOpen( p_this, p_sys, VLC_TRUE ) != VLC_SUCCESS )
    {
        CommonClose( p_this, p_sys );
        return VLC_EGENERIC;
    }
565

Gildas Bazin's avatar
Gildas Bazin committed
566 567 568
    /* Everything is ready. Let's rock baby */
    msg_Dbg( p_this, "Playing...");
    p_sys->p_control->Run();
569

Gildas Bazin's avatar
Gildas Bazin committed
570 571 572 573 574 575 576
    p_demux->pf_demux   = Demux;
    p_demux->pf_control = DemuxControl;
    p_demux->info.i_update = 0;
    p_demux->info.i_title = 0;
    p_demux->info.i_seekpoint = 0;

    for( i = 0; i < p_sys->i_streams; i++ )
577
    {
Gildas Bazin's avatar
Gildas Bazin committed
578 579
        dshow_stream_t *p_stream = p_sys->pp_streams[i];
        es_format_t fmt;
580

Gildas Bazin's avatar
Gildas Bazin committed
581 582 583
        if( p_stream->mt.majortype == MEDIATYPE_Video )
        {
            es_format_Init( &fmt, VIDEO_ES, p_stream->i_fourcc );
584

Gildas Bazin's avatar
Gildas Bazin committed
585 586 587
            fmt.video.i_width  = p_stream->header.video.bmiHeader.biWidth;
            fmt.video.i_height = p_stream->header.video.bmiHeader.biHeight;
            fmt.video.i_aspect = 4 * VOUT_ASPECT_FACTOR / 3;
588

Gildas Bazin's avatar
Gildas Bazin committed
589 590 591 592 593
            if( !p_stream->header.video.bmiHeader.biCompression )
            {
                /* RGB DIB are coded from bottom to top */
                fmt.video.i_height = (unsigned int)(-(int)fmt.video.i_height);
            }
594

Gildas Bazin's avatar
Gildas Bazin committed
595 596 597 598
            /* Setup rgb mask for RGB formats */
            if( p_stream->i_fourcc == VLC_FOURCC('R','V','2','4') )
            {
                /* This is in BGR format */
599 600 601
                fmt.video.i_bmask = 0x00ff0000;
                fmt.video.i_gmask = 0x0000ff00;
                fmt.video.i_rmask = 0x000000ff;
Gildas Bazin's avatar
Gildas Bazin committed
602
            }
603 604 605 606 607 608 609

            if( p_stream->header.video.AvgTimePerFrame )
            {
                fmt.video.i_frame_rate = 10000000;
                fmt.video.i_frame_rate_base =
                    p_stream->header.video.AvgTimePerFrame;
            }
Gildas Bazin's avatar
Gildas Bazin committed
610 611 612 613
        }
        else if( p_stream->mt.majortype == MEDIATYPE_Audio )
        {
            es_format_Init( &fmt, AUDIO_ES, p_stream->i_fourcc );
614

Gildas Bazin's avatar
Gildas Bazin committed
615 616 617 618 619 620 621 622 623 624
            fmt.audio.i_channels = p_stream->header.audio.nChannels;
            fmt.audio.i_rate = p_stream->header.audio.nSamplesPerSec;
            fmt.audio.i_bitspersample = p_stream->header.audio.wBitsPerSample;
            fmt.audio.i_blockalign = fmt.audio.i_channels *
                fmt.audio.i_bitspersample / 8;
            fmt.i_bitrate = fmt.audio.i_channels * fmt.audio.i_rate *
                fmt.audio.i_bitspersample;
        }

        p_stream->p_es = es_out_Add( p_demux->out, &fmt );
625
    }
Gildas Bazin's avatar
Gildas Bazin committed
626

627
    return VLC_SUCCESS;
628 629
}

Gildas Bazin's avatar
Gildas Bazin committed
630 631 632 633
/*****************************************************************************
 * AccessOpen: open direct show device as an access module
 *****************************************************************************/
static int AccessOpen( vlc_object_t *p_this )
634
{
Gildas Bazin's avatar
Gildas Bazin committed
635 636
    access_t     *p_access = (access_t*)p_this;
    access_sys_t *p_sys;
637

Gildas Bazin's avatar
Gildas Bazin committed
638 639
    p_access->p_sys = p_sys = (access_sys_t *)malloc( sizeof( access_sys_t ) );
    memset( p_sys, 0, sizeof( access_sys_t ) );
640

641
    if( CommonOpen( p_this, p_sys, VLC_FALSE ) != VLC_SUCCESS )
Gildas Bazin's avatar
Gildas Bazin committed
642 643 644 645
    {
        CommonClose( p_this, p_sys );
        return VLC_EGENERIC;
    }
646

Gildas Bazin's avatar
Gildas Bazin committed
647
    dshow_stream_t *p_stream = p_sys->pp_streams[0];
648

Gildas Bazin's avatar
Gildas Bazin committed
649 650
    /* Check if we need to force demuxers */
    if( !p_access->psz_demux || !*p_access->psz_demux )
Gildas Bazin's avatar
 
Gildas Bazin committed
651
    {
Gildas Bazin's avatar
Gildas Bazin committed
652 653 654
        if( p_stream->i_fourcc == VLC_FOURCC('d','v','s','l') ||
            p_stream->i_fourcc == VLC_FOURCC('d','v','s','d') ||
            p_stream->i_fourcc == VLC_FOURCC('d','v','h','d') )
655
        {
Gildas Bazin's avatar
Gildas Bazin committed
656 657 658 659 660
            p_access->psz_demux = strdup( "rawdv" );
        }
        else if( p_stream->i_fourcc == VLC_FOURCC('m','p','2','v') )
        {
            p_access->psz_demux = "mpgv";
661
        }
Gildas Bazin's avatar
 
Gildas Bazin committed
662
    }
Gildas Bazin's avatar
 
Gildas Bazin committed
663

Gildas Bazin's avatar
Gildas Bazin committed
664
    /* Setup Access */
665 666
    p_access->pf_read = NULL;
    p_access->pf_block = ReadCompressed;
Gildas Bazin's avatar
Gildas Bazin committed
667 668 669 670 671 672 673 674 675 676 677 678 679 680 681
    p_access->pf_control = AccessControl;
    p_access->pf_seek = NULL;
    p_access->info.i_update = 0;
    p_access->info.i_size = 0;
    p_access->info.i_pos = 0;
    p_access->info.b_eof = VLC_FALSE;
    p_access->info.i_title = 0;
    p_access->info.i_seekpoint = 0;
    p_access->p_sys = p_sys;

    /* Everything is ready. Let's rock baby */
    msg_Dbg( p_this, "Playing...");
    p_sys->p_control->Run();

    return VLC_SUCCESS;
682
}
Gildas Bazin's avatar
 
Gildas Bazin committed
683

Gildas Bazin's avatar
Gildas Bazin committed
684 685 686 687
/*****************************************************************************
 * CommonClose: close device
 *****************************************************************************/
static void CommonClose( vlc_object_t *p_this, access_sys_t *p_sys )
688
{
Clément Stenac's avatar
Clément Stenac committed
689
    msg_Dbg( p_this, "releasing DirectShow");
690

Gildas Bazin's avatar
Gildas Bazin committed
691
    DeleteDirectShowGraph( p_sys );
692

Gildas Bazin's avatar
Gildas Bazin committed
693 694
    /* Uninitialize OLE/COM */
    CoUninitialize();
695

696 697
    for( int i = 0; i < p_sys->i_streams; i++ ) delete p_sys->pp_streams[i];
    if( p_sys->i_streams ) free( p_sys->pp_streams );
Gildas Bazin's avatar
Gildas Bazin committed
698 699 700

    vlc_mutex_destroy( &p_sys->lock );
    vlc_cond_destroy( &p_sys->wait );
701

Gildas Bazin's avatar
Gildas Bazin committed
702
    free( p_sys );
703 704
}

Gildas Bazin's avatar
Gildas Bazin committed
705 706 707 708
/*****************************************************************************
 * AccessClose: close device
 *****************************************************************************/
static void AccessClose( vlc_object_t *p_this )
709
{
Gildas Bazin's avatar
Gildas Bazin committed
710 711
    access_t     *p_access = (access_t *)p_this;
    access_sys_t *p_sys    = p_access->p_sys;
712

Gildas Bazin's avatar
Gildas Bazin committed
713 714
    /* Stop capturing stuff */
    p_sys->p_control->Stop();
715

Gildas Bazin's avatar
Gildas Bazin committed
716 717
    CommonClose( p_this, p_sys );
}
718

Gildas Bazin's avatar
Gildas Bazin committed
719 720 721 722 723 724 725
/*****************************************************************************
 * DemuxClose: close device
 *****************************************************************************/
static void DemuxClose( vlc_object_t *p_this )
{
    demux_t      *p_demux = (demux_t *)p_this;
    access_sys_t *p_sys   = (access_sys_t *)p_demux->p_sys;
726

Gildas Bazin's avatar
Gildas Bazin committed
727 728
    /* Stop capturing stuff */
    p_sys->p_control->Stop();
729

Gildas Bazin's avatar
Gildas Bazin committed
730
    CommonClose( p_this, p_sys );
Gildas Bazin's avatar
 
Gildas Bazin committed
731 732 733 734 735
}

/****************************************************************************
 * ConnectFilters
 ****************************************************************************/
Gildas Bazin's avatar
Gildas Bazin committed
736 737
static bool ConnectFilters( vlc_object_t *p_this, access_sys_t *p_sys,
                            IBaseFilter *p_filter,
738
                            CaptureFilter *p_capture_filter )
Gildas Bazin's avatar
 
Gildas Bazin committed
739
{
740
    CapturePin *p_input_pin = p_capture_filter->CustomGetPin();
Gildas Bazin's avatar
 
Gildas Bazin committed
741

742
    AM_MEDIA_TYPE mediaType = p_input_pin->CustomGetMediaType();
Gildas Bazin's avatar
 
Gildas Bazin committed
743

744
    if( p_sys->p_capture_graph_builder2 )
Gildas Bazin's avatar
 
Gildas Bazin committed
745
    {
746
        if( FAILED(p_sys->p_capture_graph_builder2->
Gildas Bazin's avatar
Gildas Bazin committed
747 748
                RenderStream( &PIN_CATEGORY_CAPTURE, &mediaType.majortype,
                              p_filter, 0, (IBaseFilter *)p_capture_filter )) )
749 750 751
        {
            return false;
        }
752

753 754 755
        // Sort out all the possible video inputs
        // The class needs to be given the capture filters ANALOGVIDEO input pin
        IEnumPins *pins = 0;
756 757
        if( ( mediaType.majortype == MEDIATYPE_Video ||
              mediaType.majortype == MEDIATYPE_Stream ) &&
758
            SUCCEEDED(p_filter->EnumPins(&pins)) )
Gildas Bazin's avatar
 
Gildas Bazin committed
759
        {
760 761 762 763 764 765 766 767
            IPin        *pP = 0;
            ULONG        n;
            PIN_INFO     pinInfo;
            BOOL         Found = FALSE;
            IKsPropertySet *pKs=0;
            GUID guid;
            DWORD dw;

Gildas Bazin's avatar
Gildas Bazin committed
768
            while( !Found && ( S_OK == pins->Next(1, &pP, &n) ) )
769
            {
Gildas Bazin's avatar
Gildas Bazin committed
770
                if( S_OK == pP->QueryPinInfo(&pinInfo) )
771
                {
Gildas Bazin's avatar
Gildas Bazin committed
772 773 774 775
                    // is this pin an ANALOGVIDEOIN input pin?
                    if( pinInfo.dir == PINDIR_INPUT &&
                        pP->QueryInterface( IID_IKsPropertySet,
                                            (void **)&pKs ) == S_OK )
776
                    {
Gildas Bazin's avatar
Gildas Bazin committed
777 778 779
                        if( pKs->Get( AMPROPSETID_Pin,
                                      AMPROPERTY_PIN_CATEGORY, NULL, 0,
                                      &guid, sizeof(GUID), &dw ) == S_OK )
780
                        {
Gildas Bazin's avatar
Gildas Bazin committed
781
                            if( guid == PIN_CATEGORY_ANALOGVIDEOIN )
782
                            {
Gildas Bazin's avatar
Gildas Bazin committed
783
                                // recursively search crossbar routes
784
                                FindCrossbarRoutes( p_this, p_sys, pP, 0 );
Gildas Bazin's avatar
Gildas Bazin committed
785 786
                                // found it
                                Found = TRUE;
787 788
                            }
                        }
Gildas Bazin's avatar
Gildas Bazin committed
789
                        pKs->Release();
790 791 792 793 794 795
                    }
                    pinInfo.pFilter->Release();
                }
                pP->Release();
            }
            pins->Release();
Gildas Bazin's avatar
 
Gildas Bazin committed
796
        }
797
        return true;
Gildas Bazin's avatar
 
Gildas Bazin committed
798
    }
799 800 801 802
    else
    {
        IEnumPins *p_enumpins;
        IPin *p_pin;
Gildas Bazin's avatar
 
Gildas Bazin committed
803

804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824
        if( S_OK != p_filter->EnumPins( &p_enumpins ) ) return false;

        while( S_OK == p_enumpins->Next( 1, &p_pin, NULL ) )
        {
            PIN_DIRECTION pin_dir;
            p_pin->QueryDirection( &pin_dir );

            if( pin_dir == PINDIR_OUTPUT &&
                p_sys->p_graph->ConnectDirect( p_pin, (IPin *)p_input_pin,
                                               0 ) == S_OK )
            {
                p_pin->Release();
                p_enumpins->Release();
                return true;
            }
            p_pin->Release();
        }

        p_enumpins->Release();
        return false;
    }
Gildas Bazin's avatar
 
Gildas Bazin committed
825 826
}

827
/*
Gildas Bazin's avatar
Gildas Bazin committed
828 829 830
 * get fourcc priority from arbritary preference, the higher the better
 */
static int GetFourCCPriority( int i_fourcc )
831 832 833
{
    switch( i_fourcc )
    {
Gildas Bazin's avatar
Gildas Bazin committed
834 835 836 837 838 839 840 841 842 843 844 845
    case VLC_FOURCC('I','4','2','0'):
    case VLC_FOURCC('f','l','3','2'):
        return 9;
    case VLC_FOURCC('Y','V','1','2'):
    case VLC_FOURCC('a','r','a','w'):
        return 8;
    case VLC_FOURCC('R','V','2','4'):
        return 7;
    case VLC_FOURCC('Y','U','Y','2'):
    case VLC_FOURCC('R','V','3','2'):
    case VLC_FOURCC('R','G','B','A'):
        return 6;
846
    }
Gildas Bazin's avatar
Gildas Bazin committed
847

848 849 850 851 852
    return 0;
}

#define MAX_MEDIA_TYPES 32

Gildas Bazin's avatar
Gildas Bazin committed
853 854
static int OpenDevice( vlc_object_t *p_this, access_sys_t *p_sys,
                       string devicename, vlc_bool_t b_audio )
Gildas Bazin's avatar
 
Gildas Bazin committed
855
{
856 857 858
    /* See if device is already opened */
    for( int i = 0; i < p_sys->i_streams; i++ )
    {
Gildas Bazin's avatar
Gildas Bazin committed
859 860
        if( devicename.size() &&
            p_sys->pp_streams[i]->devicename == devicename )
861 862 863 864 865 866
        {
            /* Already opened */
            return VLC_SUCCESS;
        }
    }

Gildas Bazin's avatar
 
Gildas Bazin committed
867 868
    list<string> list_devices;

869
    /* Enumerate devices and display their names */
Gildas Bazin's avatar
Gildas Bazin committed
870
    FindCaptureDevice( p_this, NULL, &list_devices, b_audio );
Gildas Bazin's avatar
 
Gildas Bazin committed
871

872 873 874
    if( !list_devices.size() )
        return VLC_EGENERIC;

Gildas Bazin's avatar
 
Gildas Bazin committed
875 876
    list<string>::iterator iter;
    for( iter = list_devices.begin(); iter != list_devices.end(); iter++ )
Gildas Bazin's avatar
Gildas Bazin committed
877
        msg_Dbg( p_this, "found device: %s", iter->c_str() );
Gildas Bazin's avatar
 
Gildas Bazin committed
878 879 880 881 882 883 884 885

    /* If no device name was specified, pick the 1st one */
    if( devicename.size() == 0 )
    {
        devicename = *list_devices.begin();
    }

    // Use the system device enumerator and class enumerator to find
Gildas Bazin's avatar
 
Gildas Bazin committed
886 887
    // a capture/preview device, such as a desktop USB video camera.
    IBaseFilter *p_device_filter =
Gildas Bazin's avatar
Gildas Bazin committed
888
        FindCaptureDevice( p_this, &devicename, 0, b_audio );
Gildas Bazin's avatar
 
Gildas Bazin committed
889
    if( p_device_filter )
Gildas Bazin's avatar
Gildas Bazin committed
890
        msg_Dbg( p_this, "using device: %s", devicename.c_str() );
Gildas Bazin's avatar
 
Gildas Bazin committed
891 892
    else
    {
Gildas Bazin's avatar
Gildas Bazin committed
893
        msg_Err( p_this, "can't use device: %s, unsupported device type",
894
                 devicename.c_str() );
Felix Paul Kühne's avatar
Felix Paul Kühne committed
895
        intf_UserFatal( p_this, VLC_FALSE, _("Capturing failed"), 
896 897
                        _("VLC cannot use the device \"%s\", because its device "
                          "type is not supported.") );
Gildas Bazin's avatar
 
Gildas Bazin committed
898 899
        return VLC_EGENERIC;
    }
Gildas Bazin's avatar
 
Gildas Bazin committed
900