int vout_GetSnapshot( vout_thread_t *p_vout,
block_t **pp_image, picture_t **pp_picture,
video_format_t *p_fmt,
const char *psz_format, mtime_t i_timeout )
{
vout_thread_sys_t *p_sys = p_vout->p;
vlc_mutex_lock( &p_sys->snapshot.lock );
p_sys->snapshot.i_request++;
const mtime_t i_deadline = mdate() + i_timeout;
while( p_sys->snapshot.b_available && !p_sys->snapshot.p_picture )
{
if( vlc_cond_timedwait( &p_sys->snapshot.wait, &p_sys->snapshot.lock,
i_deadline ) )
break;
}
picture_t *p_picture = p_sys->snapshot.p_picture;
if( p_picture )
p_sys->snapshot.p_picture = p_picture->p_next;
else if( p_sys->snapshot.i_request > 0 )
p_sys->snapshot.i_request--;
vlc_mutex_unlock( &p_sys->snapshot.lock );
if( !p_picture )
{
msg_Err( p_vout, "Failed to grab a snapshot" );
return VLC_EGENERIC;
}
if( pp_image )
{
vlc_fourcc_t i_format = VLC_CODEC_PNG;
if( psz_format && image_Type2Fourcc( psz_format ) )
i_format = image_Type2Fourcc( psz_format );
const int i_override_width = var_GetInteger( p_vout, "snapshot-width" );
const int i_override_height = var_GetInteger( p_vout, "snapshot-height" );
if( picture_Export( VLC_OBJECT(p_vout), pp_image, p_fmt,
p_picture, i_format, i_override_width, i_override_height ) )
{
msg_Err( p_vout, "Failed to convert image for snapshot" );
picture_Release( p_picture );
return VLC_EGENERIC;
}
}
if( pp_picture )
*pp_picture = p_picture;
else
picture_Release( p_picture );
return VLC_SUCCESS;
}
vlc_fourcc_t image_Ext2Fourcc( const char *psz_name )
{
psz_name = strrchr( psz_name, '.' );
if( !psz_name ) return 0;
psz_name++;
return image_Type2Fourcc( psz_name );
}
/*****************************************************************************
* Create: initialize and set pf_video_filter()
*****************************************************************************/
static int Create( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys;
const vlc_chroma_description_t *p_chroma =
vlc_fourcc_GetChromaDescription( p_filter->fmt_in.video.i_chroma );
if( p_chroma == NULL || p_chroma->plane_count == 0 )
return VLC_EGENERIC;
config_ChainParse( p_filter, CFG_PREFIX, ppsz_vfilter_options,
p_filter->p_cfg );
p_filter->p_sys = p_sys = calloc( 1, sizeof( filter_sys_t ) );
if( p_filter->p_sys == NULL )
return VLC_ENOMEM;
p_sys->p_image = image_HandlerCreate( p_this );
if( !p_sys->p_image )
{
msg_Err( p_this, "Couldn't get handle to image conversion routines." );
free( p_sys );
return VLC_EGENERIC;
}
p_sys->psz_format = var_CreateGetString( p_this, CFG_PREFIX "format" );
p_sys->i_format = image_Type2Fourcc( p_sys->psz_format );
if( !p_sys->i_format )
{
msg_Err( p_filter, "Could not find FOURCC for image type '%s'",
p_sys->psz_format );
image_HandlerDelete( p_sys->p_image );
free( p_sys->psz_format );
free( p_sys );
return VLC_EGENERIC;
}
p_sys->i_width = var_CreateGetInteger( p_this, CFG_PREFIX "width" );
p_sys->i_height = var_CreateGetInteger( p_this, CFG_PREFIX "height" );
p_sys->i_ratio = var_CreateGetInteger( p_this, CFG_PREFIX "ratio" );
if( p_sys->i_ratio <= 0)
p_sys->i_ratio = 1;
p_sys->b_replace = var_CreateGetBool( p_this, CFG_PREFIX "replace" );
p_sys->psz_prefix = var_CreateGetString( p_this, CFG_PREFIX "prefix" );
p_sys->psz_path = var_GetNonEmptyString( p_this, CFG_PREFIX "path" );
if( p_sys->psz_path == NULL )
p_sys->psz_path = config_GetUserDir( VLC_PICTURES_DIR );
p_filter->pf_video_filter = Filter;
return VLC_SUCCESS;
}
