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Don't fail launching the video device if a video control failed. Update the hue/saturation/brightness/contrast values in the callback before issue the video control. (I haven't been able to test yet due to lack of hardware)

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This commit is contained in:
Antoine Cellerier 2007-12-01 23:41:40 +00:00
parent 599cf09858
commit 6d96102abf
1 changed files with 19 additions and 8 deletions
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27
modules/access/v4l2.c
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@ -1529,14 +1529,13 @@ int OpenVideoDev( demux_t *p_demux, char *psz_device )
VideoControlList( p_demux, i_fd );
if( VideoControl( p_demux, i_fd,
"brightness", V4L2_CID_BRIGHTNESS, p_sys->i_brightness )
|| VideoControl( p_demux, i_fd,
"contrast", V4L2_CID_CONTRAST, p_sys->i_contrast )
|| VideoControl( p_demux, i_fd,
"saturation", V4L2_CID_SATURATION, p_sys->i_saturation )
|| VideoControl( p_demux, i_fd, "hue", V4L2_CID_HUE, p_sys->i_hue ) )
goto open_failed;
VideoControl( p_demux, i_fd,
"brightness", V4L2_CID_BRIGHTNESS, p_sys->i_brightness );
VideoControl( p_demux, i_fd,
"contrast", V4L2_CID_CONTRAST, p_sys->i_contrast );
VideoControl( p_demux, i_fd,
"saturation", V4L2_CID_SATURATION, p_sys->i_saturation );
VideoControl( p_demux, i_fd, "hue", V4L2_CID_HUE, p_sys->i_hue );
/* Init vout Picture */
vout_InitPicture( VLC_OBJECT(p_demux), &p_sys->pic, p_sys->i_fourcc,
@ -2422,17 +2421,29 @@ static int VideoControlCallback( vlc_object_t *p_this,
return VLC_EGENERIC;
if( !strcmp( psz_var, "brightness" ) )
{
p_sys->i_brightness = newval.i_int;
return VideoControl( p_demux, i_fd,
"brightness", V4L2_CID_BRIGHTNESS, p_sys->i_brightness );
}
else if( !strcmp( psz_var, "contrast" ) )
{
p_sys->i_contrast = newval.i_int;
return VideoControl( p_demux, i_fd,
"contrast", V4L2_CID_CONTRAST, p_sys->i_contrast );
}
else if( !strcmp( psz_var, "saturation" ) )
{
p_sys->i_saturation = newval.i_int;
return VideoControl( p_demux, i_fd,
"saturation", V4L2_CID_SATURATION, p_sys->i_saturation );
}
else if( !strcmp( psz_var, "hue" ) )
{
p_sys->i_hue = newval.i_int;
return VideoControl( p_demux, i_fd,
"hue", V4L2_CID_HUE, p_sys->i_hue );
}
else
return VLC_EGENERIC;
return VLC_SUCCESS;