]> git.sesse.net Git - vlc/blobdiff - modules/access/dshow/dshow.cpp
possible fix for Trac Ticket #621, whereby Hauppage WinTV capture cards (PVR-150...
[vlc] / modules / access / dshow / dshow.cpp
index 7e669109a22a8d0def667187d0723570a7c366bf..9472924e9d031ec53e629e167b8492d9041ff04b 100644 (file)
@@ -1,10 +1,11 @@
 /*****************************************************************************
  * dshow.cpp : DirectShow access module for vlc
  *****************************************************************************
- * Copyright (C) 2002, 2003 VideoLAN
+ * Copyright (C) 2002, 2003 the VideoLAN team
  * $Id$
  *
  * Author: Gildas Bazin <gbazin@videolan.org>
+ *         Damien Fouilleul <damienf@videolan.org>
  *
  * 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
@@ -18,7 +19,7 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  *****************************************************************************/
 
 /*****************************************************************************
@@ -78,27 +79,31 @@ static char *ppsz_tuner_input_text[] =
 
 #define CACHING_TEXT N_("Caching value in ms")
 #define CACHING_LONGTEXT N_( \
-    "Allows you to modify the default caching value for DirectShow streams. " \
-    "This value should be set in milliseconds units." )
+    "Caching value for DirectShow streams. " \
+    "This value should be set in millisecondss." )
 #define VDEV_TEXT N_("Video device name")
 #define VDEV_LONGTEXT N_( \
-    "You can specify the name of the video device that will be used by the " \
+    "Name of the video device that will be used by the " \
     "DirectShow plugin. If you don't specify anything, the default device " \
     "will be used.")
 #define ADEV_TEXT N_("Audio device name")
 #define ADEV_LONGTEXT N_( \
-    "You can specify the name of the audio device that will be used by the " \
+    "Name of the audio device that will be used by the " \
     "DirectShow plugin. If you don't specify anything, the default device " \
-    "will be used.")
+    "will be used. You can specify a standard size (cif, d1, ...) or <width>x<height>")
 #define SIZE_TEXT N_("Video size")
 #define SIZE_LONGTEXT N_( \
-    "You can specify the size of the video that will be displayed by the " \
+    "Size of the video that will be displayed by the " \
     "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 " \
     "(eg. I420 (default), RV24, etc.)")
+#define FPS_TEXT N_("Video input frame rate")
+#define FPS_LONGTEXT N_( \
+    "Force the DirectShow video input to use a specific frame rate" \
+    "(eg. 0 means default, 25, 29.97, 50, 59.94, etc.)")
 #define CONFIG_TEXT N_("Device properties")
 #define CONFIG_LONGTEXT N_( \
     "Show the properties dialog of the selected device before starting the " \
@@ -108,15 +113,30 @@ static char *ppsz_tuner_input_text[] =
     "Show the tuner properties [channel selection] page." )
 #define CHANNEL_TEXT N_("Tuner TV Channel")
 #define CHANNEL_LONGTEXT N_( \
-    "Allows you to set the TV channel the tuner will set to " \
+    "Set the TV channel the tuner will set to " \
     "(0 means default)." )
 #define COUNTRY_TEXT N_("Tuner country code")
 #define COUNTRY_LONGTEXT N_( \
-    "Allows you to set the tuner country code that establishes the current " \
+    "Set the tuner country code that establishes the current " \
     "channel-to-frequency mapping (0 means default)." )
 #define TUNER_INPUT_TEXT N_("Tuner input type")
 #define TUNER_INPUT_LONGTEXT N_( \
-    "Allows you to select the tuner input type (Cable/Antenna)." )
+    "Select the tuner input type (Cable/Antenna)." )
+#define VIDEO_IN_TEXT N_("Video input pin")
+#define VIDEO_IN_LONGTEXT N_( \
+  "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.")
+#define AUDIO_IN_TEXT N_("Audio input pin")
+#define AUDIO_IN_LONGTEXT N_( \
+  "Select the audio input source. See the \"video input\" option." )
+#define VIDEO_OUT_TEXT N_("Video output pin")
+#define VIDEO_OUT_LONGTEXT N_( \
+  "Select the video output type. See the \"video input\" option." )
+#define AUDIO_OUT_TEXT N_("Audio output pin")
+#define AUDIO_OUT_LONGTEXT N_( \
+  "Select the audio output type. See the \"video input\" option." )
 
 static int  CommonOpen ( vlc_object_t *, access_sys_t *, vlc_bool_t );
 static void CommonClose( vlc_object_t *, access_sys_t * );
@@ -130,6 +150,8 @@ static void DemuxClose ( vlc_object_t * );
 vlc_module_begin();
     set_shortname( _("DirectShow") );
     set_description( _("DirectShow input") );
+    set_category( CAT_INPUT );
+    set_subcategory( SUBCAT_INPUT_ACCESS );
     add_integer( "dshow-caching", (mtime_t)(0.2*CLOCK_FREQ) / 1000, NULL,
                  CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
 
@@ -148,11 +170,14 @@ vlc_module_begin();
     add_string( "dshow-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
                 VLC_TRUE );
 
+    add_float( "dshow-fps", 0.0f, NULL, FPS_TEXT, FPS_LONGTEXT,
+                VLC_TRUE );
+
     add_bool( "dshow-config", VLC_FALSE, NULL, CONFIG_TEXT, CONFIG_LONGTEXT,
-              VLC_FALSE );
+              VLC_TRUE );
 
     add_bool( "dshow-tuner", VLC_FALSE, NULL, TUNER_TEXT, TUNER_LONGTEXT,
-              VLC_FALSE );
+              VLC_TRUE );
 
     add_integer( "dshow-tuner-channel", 0, NULL, CHANNEL_TEXT,
                  CHANNEL_LONGTEXT, VLC_TRUE );
@@ -164,6 +189,18 @@ vlc_module_begin();
                  TUNER_INPUT_LONGTEXT, VLC_TRUE );
         change_integer_list( pi_tuner_input, ppsz_tuner_input_text, 0 );
 
+    add_integer( "dshow-video-input",  -1, NULL, VIDEO_IN_TEXT,
+                 VIDEO_IN_LONGTEXT, VLC_TRUE );
+
+    add_integer( "dshow-audio-input",  -1, NULL, AUDIO_IN_TEXT,
+                 AUDIO_IN_LONGTEXT, VLC_TRUE );
+
+    add_integer( "dshow-video-output", -1, NULL, VIDEO_OUT_TEXT,
+                 VIDEO_OUT_LONGTEXT, VLC_TRUE );
+
+    add_integer( "dshow-audio-output", -1, NULL, AUDIO_OUT_TEXT,
+                 AUDIO_OUT_LONGTEXT, VLC_TRUE );
+
     add_shortcut( "dshow" );
     set_capability( "access_demux", 0 );
     set_callbacks( DemuxOpen, DemuxClose );
@@ -197,7 +234,6 @@ typedef struct dshow_stream_t
     es_out_id_t     *p_es;
 
     vlc_bool_t      b_pts;
-
 } dshow_stream_t;
 
 /*****************************************************************************
@@ -273,7 +309,6 @@ static int CommonOpen( vlc_object_t *p_this, access_sys_t *p_sys,
 
     var_Create( p_this, "dshow-config", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
     var_Create( p_this, "dshow-tuner", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
-
     var_Create( p_this, "dshow-vdev", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
     var_Get( p_this, "dshow-vdev", &val );
     if( val.psz_string ) vdevname = string( val.psz_string );
@@ -286,7 +321,7 @@ static int CommonOpen( vlc_object_t *p_this, access_sys_t *p_sys,
 
     static struct {char *psz_size; int  i_width; int  i_height;} size_table[] =
     { { "subqcif", 128, 96 }, { "qsif", 160, 120 }, { "qcif", 176, 144 },
-      { "sif", 320, 240 }, { "cif", 352, 288 }, { "cif", 640, 480 },
+      { "sif", 320, 240 }, { "cif", 352, 288 }, { "d1", 640, 480 },
       { 0, 0, 0 },
     };
 
@@ -311,20 +346,23 @@ static int CommonOpen( vlc_object_t *p_this, access_sys_t *p_sys,
             {
                 i_height = strtol( psz_parser + 1, &psz_parser, 0 );
             }
-            msg_Dbg( p_this, "Width x Height %dx%d", i_width, i_height );
+            msg_Dbg( p_this, "width x height %dx%d", i_width, i_height );
         }
     }
     if( val.psz_string ) free( val.psz_string );
 
+    p_sys->b_chroma = VLC_FALSE;
     var_Create( p_this, "dshow-chroma", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
     var_Get( p_this, "dshow-chroma", &val );
     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] );
+        p_sys->b_chroma = VLC_TRUE;
     }
     if( val.psz_string ) free( val.psz_string );
 
+    var_Create( p_this, "dshow-fps", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
     var_Create( p_this, "dshow-tuner-channel",
                 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
     var_Create( p_this, "dshow-tuner-country",
@@ -334,6 +372,11 @@ static int CommonOpen( vlc_object_t *p_this, access_sys_t *p_sys,
 
     var_Create( p_this, "dshow-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 
+    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 );
+
     /* Initialize OLE/COM */
     CoInitialize( 0 );
 
@@ -411,6 +454,19 @@ static int CommonOpen( vlc_object_t *p_this, access_sys_t *p_sys,
 
     for( i = p_sys->i_crossbar_route_depth-1; i >= 0 ; --i )
     {
+            var_Get( p_this, "dshow-video-input", &val );
+            if( val.i_int > 0 )
+                    p_sys->crossbar_routes[i].VideoInputIndex=val.i_int;
+            var_Get( p_this, "dshow-video-output", &val );
+            if( val.i_int > 0 )
+                    p_sys->crossbar_routes[i].VideoOutputIndex=val.i_int;
+            var_Get( p_this, "dshow-audio-input", &val );
+            if( val.i_int > 0 )
+                    p_sys->crossbar_routes[i].AudioInputIndex=val.i_int;
+            var_Get( p_this, "dshow-audio-output", &val );
+            if( val.i_int > 0 )
+                    p_sys->crossbar_routes[i].AudioOutputIndex=val.i_int;
+
         IAMCrossbar *pXbar = p_sys->crossbar_routes[i].pXbar;
         LONG VideoInputIndex = p_sys->crossbar_routes[i].VideoInputIndex;
         LONG VideoOutputIndex = p_sys->crossbar_routes[i].VideoOutputIndex;
@@ -419,8 +475,8 @@ static int CommonOpen( vlc_object_t *p_this, access_sys_t *p_sys,
 
         if( SUCCEEDED(pXbar->Route(VideoOutputIndex, VideoInputIndex)) )
         {
-            msg_Dbg( p_this, "Crossbar at depth %d, Routed video "
-                     "ouput %ld to video input %ld", i, VideoOutputIndex,
+            msg_Dbg( p_this, "crossbar at depth %d, routed video "
+                     "output %ld to video input %ld", i, VideoOutputIndex,
                      VideoInputIndex );
 
             if( AudioOutputIndex != -1 && AudioInputIndex != -1 )
@@ -428,8 +484,8 @@ static int CommonOpen( vlc_object_t *p_this, access_sys_t *p_sys,
                 if( SUCCEEDED( pXbar->Route(AudioOutputIndex,
                                             AudioInputIndex)) )
                 {
-                    msg_Dbg(p_this, "Crossbar at depth %d, Routed audio "
-                            "ouput %ld to audio input %ld", i,
+                    msg_Dbg(p_this, "crossbar at depth %d, routed audio "
+                            "output %ld to audio input %ld", i,
                             AudioOutputIndex, AudioInputIndex );
                 }
             }
@@ -520,6 +576,13 @@ static int DemuxOpen( vlc_object_t *p_this )
                 fmt.video.i_gmask = 0x0000ff00;
                 fmt.video.i_rmask = 0x000000ff;
             }
+
+            if( p_stream->header.video.AvgTimePerFrame )
+            {
+                fmt.video.i_frame_rate = 10000000;
+                fmt.video.i_frame_rate_base =
+                    p_stream->header.video.AvgTimePerFrame;
+            }
         }
         else if( p_stream->mt.majortype == MEDIATYPE_Audio )
         {
@@ -599,7 +662,7 @@ static int AccessOpen( vlc_object_t *p_this )
  *****************************************************************************/
 static void CommonClose( vlc_object_t *p_this, access_sys_t *p_sys )
 {
-    msg_Dbg( p_this, "Releasing DirectShow");
+    msg_Dbg( p_this, "releasing DirectShow");
 
     DeleteDirectShowGraph( p_sys );
 
@@ -815,88 +878,11 @@ static int OpenDevice( vlc_object_t *p_this, access_sys_t *p_sys,
                         p_sys->i_width, p_sys->i_height,
                         0, 0, 0, media_types, MAX_MEDIA_TYPES );
 
-    /* Find out if the pin handles MEDIATYPE_Stream, in which case we
-     * won't add a prefered media type as this doesn't seem to work well
-     * -- to investigate. */
-    vlc_bool_t b_stream_type = VLC_FALSE;
-    for( size_t i = 0; i < media_count; i++ )
-    {
-        if( media_types[i].majortype == MEDIATYPE_Stream )
-        {
-            b_stream_type = VLC_TRUE;
-            break;
-        }
-    }
-
-    size_t mt_count = 0;
     AM_MEDIA_TYPE *mt = NULL;
 
-    if( !b_stream_type && !b_audio )
-    {
-        // Insert prefered video media type
-        AM_MEDIA_TYPE mtr;
-        VIDEOINFOHEADER vh;
-
-        mtr.majortype            = MEDIATYPE_Video;
-        mtr.subtype              = MEDIASUBTYPE_I420;
-        mtr.bFixedSizeSamples    = TRUE;
-        mtr.bTemporalCompression = FALSE;
-        mtr.pUnk                 = NULL;
-        mtr.formattype           = FORMAT_VideoInfo;
-        mtr.cbFormat             = sizeof(vh);
-        mtr.pbFormat             = (BYTE *)&vh;
-
-        memset(&vh, 0, sizeof(vh));
-
-        vh.bmiHeader.biSize   = sizeof(vh.bmiHeader);
-        vh.bmiHeader.biWidth  = p_sys->i_width > 0 ? p_sys->i_width : 320;
-        vh.bmiHeader.biHeight = p_sys->i_height > 0 ? p_sys->i_height : 240;
-        vh.bmiHeader.biPlanes      = 3;
-        vh.bmiHeader.biBitCount    = 12;
-        vh.bmiHeader.biCompression = VLC_FOURCC('I','4','2','0');
-        vh.bmiHeader.biSizeImage   = vh.bmiHeader.biWidth * 12 *
-            vh.bmiHeader.biHeight / 8;
-        mtr.lSampleSize            = vh.bmiHeader.biSizeImage;
-
-        mt_count = 1;
-        mt = (AM_MEDIA_TYPE *)malloc( sizeof(AM_MEDIA_TYPE)*mt_count );
-        CopyMediaType(mt, &mtr);
-    }
-    else if( !b_stream_type )
-    {
-        // Insert prefered audio media type
-        AM_MEDIA_TYPE mtr;
-        WAVEFORMATEX wf;
-
-        mtr.majortype            = MEDIATYPE_Audio;
-        mtr.subtype              = MEDIASUBTYPE_PCM;
-        mtr.bFixedSizeSamples    = TRUE;
-        mtr.bTemporalCompression = FALSE;
-        mtr.lSampleSize          = 0;
-        mtr.pUnk                 = NULL;
-        mtr.formattype           = FORMAT_WaveFormatEx;
-        mtr.cbFormat             = sizeof(wf);
-        mtr.pbFormat             = (BYTE *)&wf;
-
-        memset(&wf, 0, sizeof(wf));
-
-        wf.wFormatTag = WAVE_FORMAT_PCM;
-        wf.nChannels = 2;
-        wf.nSamplesPerSec = 44100;
-        wf.wBitsPerSample = 16;
-        wf.nBlockAlign = wf.nSamplesPerSec * wf.wBitsPerSample / 8;
-        wf.nAvgBytesPerSec = wf.nSamplesPerSec * wf.nBlockAlign;
-        wf.cbSize = 0;
-
-        mt_count = 1;
-        mt = (AM_MEDIA_TYPE *)malloc( sizeof(AM_MEDIA_TYPE)*mt_count );
-        CopyMediaType(mt, &mtr);
-    }
-
     if( media_count > 0 )
     {
-        mt = (AM_MEDIA_TYPE *)realloc( mt, sizeof(AM_MEDIA_TYPE) *
-                                       (mt_count + media_count) );
+        mt = (AM_MEDIA_TYPE *)CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE) * media_count);
 
         // Order and copy returned media types according to arbitrary
         // fourcc priority
@@ -917,20 +903,25 @@ static int OpenDevice( vlc_object_t *p_this, access_sys_t *p_sys,
             }
             if( slot_copy != c )
             {
-                mt[c+mt_count] = media_types[slot_copy];
+                mt[c] = media_types[slot_copy];
                 media_types[slot_copy] = media_types[c];
             }
             else
             {
-                mt[c+mt_count] = media_types[c];
+                mt[c] = media_types[c];
             }
         }
-        mt_count += media_count;
+    }
+    else {
+        /* capture device */
+        msg_Err( p_this, "capture device '%s' does not support required parameters !", devicename.c_str() );
+        p_device_filter->Release();
+        return VLC_EGENERIC;
     }
 
     /* Create and add our capture filter */
     CaptureFilter *p_capture_filter =
-        new CaptureFilter( p_this, p_sys, mt, mt_count );
+        new CaptureFilter( p_this, p_sys, mt, media_count );
     p_sys->p_graph->AddFilter( p_capture_filter, 0 );
 
     /* Add the device filter to the graph (seems necessary with VfW before
@@ -1093,11 +1084,13 @@ FindCaptureDevice( vlc_object_t *p_this, string *p_devicename,
             p_bag->Release();
             if( SUCCEEDED(hr) )
             {
-                int i_convert = ( lstrlenW( var.bstrVal ) + 1 ) * 2;
-                char *p_buf = (char *)alloca( i_convert ); p_buf[0] = 0;
-                WideCharToMultiByte( CP_ACP, 0, var.bstrVal, -1, p_buf,
-                                     i_convert, NULL, NULL );
+                int i_convert = WideCharToMultiByte(CP_ACP, 0, var.bstrVal,
+                        SysStringLen(var.bstrVal), NULL, 0, NULL, NULL);
+                char *p_buf = (char *)alloca( i_convert+1 ); p_buf[0] = 0;
+                WideCharToMultiByte( CP_ACP, 0, var.bstrVal,
+                        SysStringLen(var.bstrVal), p_buf, i_convert, NULL, NULL );
                 SysFreeString(var.bstrVal);
+                p_buf[i_convert] = '\0';
 
                 if( p_listdevices ) p_listdevices->push_back( p_buf );
 
@@ -1139,6 +1132,11 @@ static size_t EnumDeviceCaps( vlc_object_t *p_this, IBaseFilter *p_filter,
     IEnumMediaTypes *p_enummt;
     size_t mt_count = 0;
 
+    LONGLONG i_AvgTimePerFrame = 0;
+    float r_fps = var_GetFloat( p_this, "dshow-fps" );
+    if( r_fps )
+        i_AvgTimePerFrame = 10000000000LL/(LONGLONG)(r_fps*1000.0f);
+
     if( FAILED(p_filter->EnumPins( &p_enumpins )) )
     {
         msg_Dbg( p_this, "EnumDeviceCaps failed: no pin enumeration !");
@@ -1177,34 +1175,206 @@ static size_t EnumDeviceCaps( vlc_object_t *p_this, IBaseFilter *p_filter,
             msg_Dbg( p_this, "EnumDeviceCaps: trying pin %S", info.achName );
         }
 
-        /* Probe pin */
-        if( !SUCCEEDED( p_output_pin->EnumMediaTypes( &p_enummt ) ) )
+        AM_MEDIA_TYPE *p_mt;
+
+        /*
+        ** Configure pin with a default compatible media if possible
+        */
+
+        IAMStreamConfig *pSC;
+        if( SUCCEEDED(p_output_pin->QueryInterface( IID_IAMStreamConfig,
+                                            (void **)&pSC )) )
+        {
+            int piCount, piSize;
+            if( SUCCEEDED(pSC->GetNumberOfCapabilities(&piCount, &piSize)) )
+            {
+                BYTE *pSCC= (BYTE *)CoTaskMemAlloc(piSize);
+                if( NULL != pSCC )
+                {
+                    int i_priority = -1;
+                    for( int i=0; i<piCount; ++i )
+                    {
+                        if( SUCCEEDED(pSC->GetStreamCaps(i, &p_mt, pSCC)) )
+                        {
+                            int i_current_fourcc = GetFourCCFromMediaType( *p_mt );
+                            int i_current_priority = GetFourCCPriority(i_current_fourcc);
+
+                            if( (i_fourcc && (i_current_fourcc != i_fourcc))
+                             || (i_priority > i_current_priority) )
+                            {
+                                // unwanted chroma, try next media type
+                                FreeMediaType( *p_mt );
+                                CoTaskMemFree( (PVOID)p_mt );
+                                continue;
+                            }
+
+                            if( MEDIATYPE_Video == p_mt->majortype
+                                    && FORMAT_VideoInfo == p_mt->formattype )
+                            {
+                                VIDEO_STREAM_CONFIG_CAPS *pVSCC = reinterpret_cast<VIDEO_STREAM_CONFIG_CAPS*>(pSCC);
+                                VIDEOINFOHEADER *pVih = reinterpret_cast<VIDEOINFOHEADER*>(p_mt->pbFormat);
+
+                                if( i_AvgTimePerFrame )
+                                {
+                                    if( pVSCC->MinFrameInterval > i_AvgTimePerFrame
+                                      || i_AvgTimePerFrame > pVSCC->MaxFrameInterval )
+                                    {
+                                        // required frame rate not compatible, try next media type
+                                        FreeMediaType( *p_mt );
+                                        CoTaskMemFree( (PVOID)p_mt );
+                                        continue;
+                                    }
+                                    pVih->AvgTimePerFrame = i_AvgTimePerFrame;
+                                }
+
+                                if( i_width )
+                                {
+                                    if( i_width % pVSCC->OutputGranularityX
+                                     || pVSCC->MinOutputSize.cx > i_width
+                                     || i_width > pVSCC->MaxOutputSize.cx )
+                                    {
+                                        // required width not compatible, try next media type
+                                        FreeMediaType( *p_mt );
+                                        CoTaskMemFree( (PVOID)p_mt );
+                                        continue;
+                                    }
+                                    pVih->bmiHeader.biWidth = i_width;
+                                }
+
+                                if( i_height )
+                                {
+                                    if( i_height % pVSCC->OutputGranularityY
+                                     || pVSCC->MinOutputSize.cy > i_height 
+                                     || i_height > pVSCC->MaxOutputSize.cy )
+                                    {
+                                        // required height not compatible, try next media type
+                                        FreeMediaType( *p_mt );
+                                        CoTaskMemFree( (PVOID)p_mt );
+                                        continue;
+                                    }
+                                    pVih->bmiHeader.biHeight = i_height;
+                                }
+
+                                // Set the sample size and image size.
+                                // (Round the image width up to a DWORD boundary.)
+                                p_mt->lSampleSize = pVih->bmiHeader.biSizeImage = 
+                                    ((pVih->bmiHeader.biWidth + 3) & ~3) *
+                                    pVih->bmiHeader.biHeight * (pVih->bmiHeader.biBitCount>>3);
+
+                                // no cropping, use full video input buffer
+                                memset(&(pVih->rcSource), 0, sizeof(RECT));
+                                memset(&(pVih->rcTarget), 0, sizeof(RECT));
+
+                                // select this format as default
+                                if( SUCCEEDED( pSC->SetFormat(p_mt) ) )
+                                {
+                                    i_priority = i_current_priority;
+                                    if( i_fourcc )
+                                        // no need to check any more media types 
+                                        i = piCount;
+                                }
+                            }
+                            else if( p_mt->majortype == MEDIATYPE_Audio
+                                    && p_mt->formattype == FORMAT_WaveFormatEx )
+                            {
+                                AUDIO_STREAM_CONFIG_CAPS *pASCC = reinterpret_cast<AUDIO_STREAM_CONFIG_CAPS*>(pSCC);
+                                WAVEFORMATEX *pWfx = reinterpret_cast<WAVEFORMATEX*>(p_mt->pbFormat);
+
+                                if( i_channels )
+                                {
+                                    if( i_channels % pASCC->ChannelsGranularity
+                                     || (unsigned int)i_channels < pASCC->MinimumChannels
+                                     || (unsigned int)i_channels > pASCC->MaximumChannels )
+                                    {
+                                        // required number channels not compatible, try next media type
+                                        FreeMediaType( *p_mt );
+                                        CoTaskMemFree( (PVOID)p_mt );
+                                        continue;
+                                    }
+                                    pWfx->nChannels = i_channels;
+                                }
+
+                                if( i_samplespersec )
+                                {
+                                    if( i_samplespersec % pASCC->BitsPerSampleGranularity
+                                     || (unsigned int)i_samplespersec < pASCC->MinimumSampleFrequency
+                                     || (unsigned int)i_samplespersec > pASCC->MaximumSampleFrequency )
+                                    {
+                                        // required sampling rate not compatible, try next media type
+                                        FreeMediaType( *p_mt );
+                                        CoTaskMemFree( (PVOID)p_mt );
+                                        continue;
+                                    }
+                                    pWfx->nSamplesPerSec = i_samplespersec;
+                                }
+
+                                if( i_bitspersample )
+                                {
+                                    if( i_bitspersample % pASCC->BitsPerSampleGranularity
+                                     || (unsigned int)i_bitspersample < pASCC->MinimumBitsPerSample
+                                     || (unsigned int)i_bitspersample > pASCC->MaximumBitsPerSample )
+                                    {
+                                        // required sample size not compatible, try next media type
+                                        FreeMediaType( *p_mt );
+                                        CoTaskMemFree( (PVOID)p_mt );
+                                        continue;
+                                    }
+                                    pWfx->wBitsPerSample = i_bitspersample;
+                                }
+
+                                // select this format as default
+                                if( SUCCEEDED( pSC->SetFormat(p_mt) ) )
+                                {
+                                    i_priority = i_current_priority;
+                                    if( i_fourcc )
+                                        // no need to check any more media types 
+                                        i = piCount;
+                                }
+                            }
+                            FreeMediaType( *p_mt );
+                            CoTaskMemFree( (PVOID)p_mt );
+                        }
+                    }
+                    CoTaskMemFree( (LPVOID)pSCC );
+                    if( i_priority >= 0 )
+                        msg_Dbg( p_this, "EnumDeviceCaps: input pin default format configured");
+                }
+            }
+            pSC->Release();
+        }
+
+        /*
+        ** Probe pin for available medias (may be a previously configured one)
+        */
+
+        if( FAILED( p_output_pin->EnumMediaTypes( &p_enummt ) ) )
         {
             p_output_pin->Release();
             continue;
         }
 
-        AM_MEDIA_TYPE *p_mt;
         while( p_enummt->Next( 1, &p_mt, NULL ) == S_OK )
         {
             int i_current_fourcc = GetFourCCFromMediaType( *p_mt );
-            if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Video )
+            if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Video
+                && p_mt->formattype == FORMAT_VideoInfo )
             {
-                int i_current_width = p_mt->pbFormat ?
-                    ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biWidth :0;
-                int i_current_height = p_mt->pbFormat ?
-                    ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biHeight :0;
+                int i_current_width = ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biWidth;
+                int i_current_height = ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biHeight;
+                LONGLONG i_current_atpf = ((VIDEOINFOHEADER *)p_mt->pbFormat)->AvgTimePerFrame;
+
                 if( i_current_height < 0 )
                     i_current_height = -i_current_height; 
 
                 msg_Dbg( p_this, "EnumDeviceCaps: input pin "
-                         "accepts chroma: %4.4s, width:%i, height:%i",
+                         "accepts chroma: %4.4s, width:%i, height:%i, fps:%f",
                          (char *)&i_current_fourcc, i_current_width,
-                         i_current_height );
+                         i_current_height, (10000000.0f/((float)i_current_atpf)) );
 
                 if( ( !i_fourcc || i_fourcc == i_current_fourcc ) &&
                     ( !i_width || i_width == i_current_width ) &&
                     ( !i_height || i_height == i_current_height ) &&
+                    ( !i_AvgTimePerFrame || i_AvgTimePerFrame == i_current_atpf ) &&
                     mt_count < mt_max )
                 {
                     /* Pick match */
@@ -1212,7 +1382,8 @@ static size_t EnumDeviceCaps( vlc_object_t *p_this, IBaseFilter *p_filter,
                 }
                 else FreeMediaType( *p_mt );
             }
-            else if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Audio )
+            else if( i_current_fourcc && p_mt->majortype == MEDIATYPE_Audio 
+                    && p_mt->formattype == FORMAT_WaveFormatEx)
             {
                 int i_current_channels =
                     ((WAVEFORMATEX *)p_mt->pbFormat)->nChannels;
@@ -1279,13 +1450,72 @@ static size_t EnumDeviceCaps( vlc_object_t *p_this, IBaseFilter *p_filter,
                 if( p_mt->majortype == MEDIATYPE_Video ) psz_type = "video";
                 if( p_mt->majortype == MEDIATYPE_Audio ) psz_type = "audio";
                 if( p_mt->majortype == MEDIATYPE_Stream ) psz_type = "stream";
-                msg_Dbg( p_this, "EnumDeviceCaps: input pin: unknown format "
+                msg_Dbg( p_this, "EnumDeviceCaps: input pin media: unsupported format "
                          "(%s %4.4s)", psz_type, (char *)&p_mt->subtype );
+
                 FreeMediaType( *p_mt );
             }
             CoTaskMemFree( (PVOID)p_mt );
         }
 
+        if( !mt_count && p_enummt->Reset() == S_OK )
+        {
+            // VLC did not find any supported MEDIATYPE for this output pin.
+            // However the graph builder might insert converter filters in
+            // the graph if we use a different codec in VLC filter input pin.
+            // however, in order to avoid nasty surprises, make use of this
+            // facility only for known unsupported codecs.
+
+            while( !mt_count && p_enummt->Next( 1, &p_mt, NULL ) == S_OK )
+            {
+                // the first four bytes of subtype GUID contains the codec FOURCC
+                const char *pfcc = (char *)&p_mt->subtype;
+                int i_current_fourcc = VLC_FOURCC(pfcc[0], pfcc[1], pfcc[2], pfcc[3]);
+                if( VLC_FOURCC('H','C','W','2') == i_current_fourcc
+                 && p_mt->majortype == MEDIATYPE_Video )
+                {
+                    // ouput format for 'Hauppauge WinTV PVR PCI II Capture'
+                    // try I420 as an input format
+                    i_current_fourcc = VLC_FOURCC('I','4','2','0');
+                    if( !i_fourcc || i_fourcc == i_current_fourcc )
+                    {
+                        // return alternative media type  
+                        AM_MEDIA_TYPE mtr;  
+                        VIDEOINFOHEADER vh;  
+             
+                        mtr.majortype            = MEDIATYPE_Video;  
+                        mtr.subtype              = MEDIASUBTYPE_I420;  
+                        mtr.bFixedSizeSamples    = TRUE;  
+                        mtr.bTemporalCompression = FALSE;  
+                        mtr.pUnk                 = NULL;  
+                        mtr.formattype           = FORMAT_VideoInfo;  
+                        mtr.cbFormat             = sizeof(vh);  
+                        mtr.pbFormat             = (BYTE *)&vh;  
+             
+                        memset(&vh, 0, sizeof(vh));  
+             
+                        vh.bmiHeader.biSize   = sizeof(vh.bmiHeader);  
+                        vh.bmiHeader.biWidth  = i_width > 0 ? i_width :
+                            ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biWidth;  
+                        vh.bmiHeader.biHeight = i_height > 0 ? i_height :
+                            ((VIDEOINFOHEADER *)p_mt->pbFormat)->bmiHeader.biHeight;  
+                        vh.bmiHeader.biPlanes      = 3; 
+                        vh.bmiHeader.biBitCount    = 12;  
+                        vh.bmiHeader.biCompression = VLC_FOURCC('I','4','2','0');  
+                        vh.bmiHeader.biSizeImage   = vh.bmiHeader.biWidth * 12 *  
+                            vh.bmiHeader.biHeight / 8;  
+                        mtr.lSampleSize            = vh.bmiHeader.biSizeImage;  
+             
+                        msg_Dbg( p_this, "EnumDeviceCaps: input pin media: using 'I420' in place of unsupported format 'HCW2'");
+
+                        if( SUCCEEDED(CopyMediaType(mt+mt_count, &mtr)) )
+                            ++mt_count;
+                    }
+                }
+                FreeMediaType( *p_mt );
+            }
+        }
+
         p_enummt->Release();
         p_output_pin->Release();
     }
@@ -1382,14 +1612,16 @@ static int Demux( demux_t *p_demux )
     }
     /* Try to grab a video sample */
     if( i_stream == p_sys->i_streams )
-    for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
     {
-        p_stream = p_sys->pp_streams[i_stream];
-        if( p_stream->p_capture_filter &&
-            p_stream->p_capture_filter->CustomGetPin()
-                ->CustomGetSample( &sample ) == S_OK )
+        for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
         {
-            break;
+            p_stream = p_sys->pp_streams[i_stream];
+            if( p_stream->p_capture_filter &&
+                p_stream->p_capture_filter->CustomGetPin()
+                    ->CustomGetSample( &sample ) == S_OK )
+            {
+                break;
+            }
         }
     }
 
@@ -1676,7 +1908,7 @@ static void ShowDeviceProperties( vlc_object_t *p_this,
                                   vlc_bool_t b_audio )
 {
     HRESULT hr;
-    msg_Dbg( p_this, "Configuring Device Properties" );
+    msg_Dbg( p_this, "configuring Device Properties" );
 
     /*
      * Video or audio capture filter page
@@ -1690,7 +1922,7 @@ static void ShowDeviceProperties( vlc_object_t *p_this,
     {
         IAMStreamConfig *p_SC;
 
-        msg_Dbg( p_this, "Showing WDM Audio Configuration Pages" );
+        msg_Dbg( p_this, "showing WDM Audio Configuration Pages" );
 
         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
                                      &MEDIATYPE_Audio, p_device_filter,
@@ -1722,7 +1954,7 @@ static void ShowDeviceProperties( vlc_object_t *p_this,
     {
         IAMStreamConfig *p_SC;
 
-        msg_Dbg( p_this, "Showing WDM Video Configuration Pages" );
+        msg_Dbg( p_this, "showing WDM Video Configuration Pages" );
 
         hr = p_graph->FindInterface( &PIN_CATEGORY_CAPTURE,
                                      &MEDIATYPE_Interleaved, p_device_filter,
@@ -1755,7 +1987,7 @@ static void ShowTunerProperties( vlc_object_t *p_this,
                                  vlc_bool_t b_audio )
 {
     HRESULT hr;
-    msg_Dbg( p_this, "Configuring Tuner Properties" );
+    msg_Dbg( p_this, "configuring Tuner Properties" );
 
     if( !p_graph || b_audio ) return;