} plane_t;
+/**
+ * Maximum number of plane for a picture
+ */
+#define PICTURE_PLANE_MAX (VOUT_MAX_PLANES)
+
/**
* A private definition to help overloading picture release
*/
* wishes, it can even swap p_pixels buffers. */
uint8_t *p_data;
void *p_data_orig; /**< pointer before memalign */
- plane_t p[ VOUT_MAX_PLANES ]; /**< description of the planes */
+ plane_t p[PICTURE_PLANE_MAX]; /**< description of the planes */
int i_planes; /**< number of allocated planes */
/** \name Type and flags
*/
VLC_EXPORT( picture_t *, picture_New, ( vlc_fourcc_t i_chroma, int i_width, int i_height, int i_aspect ) );
+/**
+ * This function will create a new picture using the given format.
+ *
+ * When possible, it is prefered to use this function over picture_New
+ * as more information about the format is kept.
+ */
+VLC_EXPORT( picture_t *, picture_NewFromFormat, ( const video_format_t *p_fmt ) );
+
+/**
+ * Resource for a picture.
+ */
+typedef struct
+{
+ picture_sys_t *p_sys;
+
+ /* Plane resources
+ * XXX all fields MUST be set to the right value.
+ */
+ struct
+ {
+ uint8_t *p_pixels; /**< Start of the plane's data */
+ int i_lines; /**< Number of lines, including margins */
+ int i_pitch; /**< Number of bytes in a line, including margins */
+ } p[PICTURE_PLANE_MAX];
+
+} picture_resource_t;
+
+/**
+ * This function will create a new picture using the provided resource.
+ *
+ * If the resource is NULL then a plain picture_NewFromFormat is returned.
+ */
+VLC_EXPORT( picture_t *, picture_NewFromResource, ( const video_format_t *, const picture_resource_t * ) );
+
/**
* This function will force the destruction a picture.
* The value of the picture reference count should be 0 before entering this
/*****************************************************************************
*
*****************************************************************************/
-picture_t *picture_New( vlc_fourcc_t i_chroma, int i_width, int i_height, int i_aspect )
+picture_t *picture_NewFromResource( const video_format_t *p_fmt, const picture_resource_t *p_resource )
{
+ video_format_t fmt = *p_fmt;
+
+ /* It is needed to be sure all informations are filled */
+ video_format_Setup( &fmt, p_fmt->i_chroma,
+ p_fmt->i_width, p_fmt->i_height, p_fmt->i_aspect );
+
+ /* */
picture_t *p_picture = calloc( 1, sizeof(*p_picture) );
if( !p_picture )
return NULL;
- if( __vout_AllocatePicture( NULL, p_picture,
- i_chroma, i_width, i_height, i_aspect ) )
+ if( p_resource )
{
- free( p_picture );
- return NULL;
- }
+ if( picture_Setup( p_picture, fmt.i_chroma, fmt.i_width, fmt.i_height, fmt.i_aspect ) )
+ {
+ free( p_picture );
+ return NULL;
+ }
+ p_picture->p_sys = p_resource->p_sys;
+ for( int i = 0; i < p_picture->i_planes; i++ )
+ {
+ p_picture->p[i].p_pixels = p_resource->p[i].p_pixels;
+ p_picture->p[i].i_lines = p_resource->p[i].i_lines;
+ p_picture->p[i].i_pitch = p_resource->p[i].i_pitch;
+ }
+ }
+ else
+ {
+ if( __vout_AllocatePicture( NULL, p_picture,
+ fmt.i_chroma, fmt.i_width, fmt.i_height, fmt.i_aspect ) )
+ {
+ free( p_picture );
+ return NULL;
+ }
+ }
+ /* */
+ p_picture->format = fmt;
p_picture->i_refcount = 1;
p_picture->pf_release = PictureReleaseCallback;
p_picture->i_status = RESERVED_PICTURE;
return p_picture;
}
+picture_t *picture_NewFromFormat( const video_format_t *p_fmt )
+{
+ return picture_NewFromResource( p_fmt, NULL );
+}
+picture_t *picture_New( vlc_fourcc_t i_chroma, int i_width, int i_height, int i_aspect )
+{
+ video_format_t fmt;
+
+ memset( &fmt, 0, sizeof(fmt) );
+ video_format_Setup( &fmt, i_chroma, i_width, i_height, i_aspect );
+
+ return picture_NewFromFormat( &fmt );
+}
/*****************************************************************************
*