Commit 8e2fd683 authored by Damien Fouilleul's avatar Damien Fouilleul

dshow.cpp: Removed default preferred media types (I420) as it was reported by...

dshow.cpp: Removed default preferred media types (I420) as it was reported by Paul Sokolovsky to cause kernel crashes
           with some buggy drivers. I added these media types a while back to get around another bug for drivers that
           didn't offer any preferred media types.
           Hopefully, the latter bug should be indirectly fixed when I added support for IAMStreamConfig.
           Moreover, I modified the selection of a default format in IAMStreamConfig to take
           GetFourCCPriority into a account.
parent baf1fd79
......@@ -832,92 +832,11 @@ 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 );
size_t mt_count = 0;
AM_MEDIA_TYPE *mt = NULL;
/* Only force the chroma setting if it is specified by the user. */
if( p_sys->b_chroma )
{
/* 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;
}
}
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
......@@ -938,20 +857,25 @@ 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
......@@ -1221,15 +1145,19 @@ static size_t EnumDeviceCaps( vlc_object_t *p_this, IBaseFilter *p_filter,
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_current_fourcc || (i_fourcc && (i_current_fourcc != i_fourcc)) )
if( !i_current_fourcc
|| (i_fourcc && (i_current_fourcc != i_fourcc))
|| (i_priority > i_current_priority) )
{
// incompatible or unrecognized chroma, try next media type
// incompatible or unwanted chroma, try next media type
FreeMediaType( *p_mt );
CoTaskMemFree( (PVOID)p_mt );
continue;
......@@ -1295,9 +1223,10 @@ static size_t EnumDeviceCaps( vlc_object_t *p_this, IBaseFilter *p_filter,
// select this format as default
if( SUCCEEDED( pSC->SetFormat(p_mt) ) )
{
msg_Dbg( p_this, "EnumDeviceCaps: input pin video format configured");
// no need to check any more media types
i = piCount;
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
......@@ -1351,9 +1280,10 @@ static size_t EnumDeviceCaps( vlc_object_t *p_this, IBaseFilter *p_filter,
// select this format as default
if( SUCCEEDED( pSC->SetFormat(p_mt) ) )
{
msg_Dbg( p_this, "EnumDeviceCaps: input pin default format configured");
// no need to check any more media types
i = piCount;
i_priority = i_current_priority;
if( i_fourcc )
// no need to check any more media types
i = piCount;
}
}
FreeMediaType( *p_mt );
......@@ -1361,6 +1291,8 @@ static size_t EnumDeviceCaps( vlc_object_t *p_this, IBaseFilter *p_filter,
}
}
CoTaskMemFree( (LPVOID)pSCC );
if( i_priority >= 0 )
msg_Dbg( p_this, "EnumDeviceCaps: input pin default format configured");
}
}
pSC->Release();
......@@ -1376,7 +1308,6 @@ static size_t EnumDeviceCaps( vlc_object_t *p_this, IBaseFilter *p_filter,
continue;
}
while( p_enummt->Next( 1, &p_mt, NULL ) == S_OK )
{
int i_current_fourcc = GetFourCCFromMediaType( *p_mt );
......
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