* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-#ifndef _VLC_VOUT_H_
-#define _VLC_VOUT_H_ 1
+#ifndef VLC_VOUT_H_
+#define VLC_VOUT_H_ 1
+
+/**
+ * \file
+ * This file defines common video output structures and functions in vlc
+ */
#include <vlc_es.h>
#include <vlc_filter.h>
bool b_progressive; /**< is it a progressive frame ? */
unsigned int i_nb_fields; /**< # of displayed fields */
bool b_top_field_first; /**< which field is first */
+ uint8_t *p_q; /**< quantification table */
+ int i_qstride; /**< quantification stride */
+ int i_qtype; /**< quantification style */
/**@}*/
/** The picture heap we are attached to */
struct picture_t *p_next;
};
+/**
+ * This function will create a new picture.
+ * The picture created will implement a default release management compatible
+ * with picture_Hold and picture_Release. This default management will release
+ * picture_sys_t *p_sys field if non NULL.
+ */
+VLC_EXPORT( picture_t *, picture_New, ( vlc_fourcc_t i_chroma, int i_width, int i_height, int i_aspect ) );
+
+/**
+ * This function will force the destruction a picture.
+ * The value of the picture reference count should be 0 before entering this
+ * function.
+ * Unless used for reimplementing pf_release, you should not use this
+ * function but picture_Release.
+ */
+VLC_EXPORT( void, picture_Delete, ( picture_t * ) );
+
+/**
+ * This function will increase the picture reference count.
+ * It will not have any effect on picture obtained from vout
+ */
+static inline void picture_Hold( picture_t *p_picture )
+{
+ if( p_picture->pf_release )
+ p_picture->i_refcount++;
+}
+/**
+ * This function will release a picture.
+ * It will not have any effect on picture obtained from vout
+ */
+static inline void picture_Release( picture_t *p_picture )
+{
+ /* FIXME why do we let pf_release handle the i_refcount ? */
+ if( p_picture->pf_release )
+ p_picture->pf_release( p_picture );
+}
+
+/**
+ * Cleanup quantization matrix data and set to 0
+ */
+static inline void picture_CleanupQuant( picture_t *p_pic )
+{
+ free( p_pic->p_q );
+ p_pic->p_q = NULL;
+ p_pic->i_qstride = 0;
+ p_pic->i_qtype = 0;
+}
+
+/**
+ * This function will copy all picture dynamic properties.
+ */
+static inline void picture_CopyProperties( picture_t *p_dst, const picture_t *p_src )
+{
+ p_dst->date = p_src->date;
+ p_dst->b_force = p_src->b_force;
+
+ p_dst->b_progressive = p_src->b_progressive;
+ p_dst->i_nb_fields = p_src->i_nb_fields;
+ p_dst->b_top_field_first = p_src->b_top_field_first;
+
+ /* FIXME: copy ->p_q and ->p_qstride */
+}
+
+/**
+ * This function will copy the picture pixels.
+ * You can safely copy between pictures that do not have the same size,
+ * only the compatible(smaller) part will be copied.
+ */
+VLC_EXPORT( void, picture_CopyPixels, ( picture_t *p_dst, const picture_t *p_src ) );
+VLC_EXPORT( void, plane_CopyPixels, ( plane_t *p_dst, const plane_t *p_src ) );
+
+/**
+ * This function will copy both picture dynamic properties and pixels.
+ * You have to notice that sometime a simple picture_Hold may do what
+ * you want without the copy overhead.
+ * Provided for convenience.
+ *
+ * \param p_dst pointer to the destination picture.
+ * \param p_src pointer to the source picture.
+ */
+static inline void picture_Copy( picture_t *p_dst, const picture_t *p_src )
+{
+ picture_CopyPixels( p_dst, p_src );
+ picture_CopyProperties( p_dst, p_src );
+}
+
/**
* Video picture heap, either render (to store pictures used
* by the decoder) or output (to store pictures displayed by the vout plugin)
#define DISPLAYED_PICTURE 5 /* been displayed but is linked */
#define DESTROYED_PICTURE 6 /* allocated but no more used */
+/* Quantification type */
+#define QTYPE_MPEG1 0
+#define QTYPE_MPEG2 1
+#define QTYPE_H264 2
+
/*****************************************************************************
* Shortcuts to access image components
*****************************************************************************/
* @{
*/
+/**
+ * Video subtitle region spu core private
+ */
+typedef struct subpicture_region_private_t subpicture_region_private_t;
+
/**
* Video subtitle region
*
struct subpicture_region_t
{
video_format_t fmt; /**< format of the picture */
- picture_t picture; /**< picture comprising this region */
+ picture_t *p_picture; /**< picture comprising this region */
int i_x; /**< position of region */
int i_y; /**< position of region */
text_style_t *p_style; /**< a description of the text style formatting */
subpicture_region_t *p_next; /**< next region in the list */
- subpicture_region_t *p_cache; /**< modified version of this region */
+ subpicture_region_private_t *p_private; /**< Private data for spu_t *only* */
};
+/**
+ * This function will create a new subpicture.
+ * You can must use subpicture_region_Delete to destroy it.
+ */
+VLC_EXPORT( subpicture_region_t *, subpicture_region_New, ( const video_format_t *p_fmt ) );
+
+/**
+ * This function will destroy a subpicture allocated by
+ * subpicture_region_New.
+ *
+ * You may give it NULL.
+ */
+VLC_EXPORT( void, subpicture_region_Delete, ( subpicture_region_t *p_region ) );
+
+/**
+ * This function will destroy a list of subpicture allocated by
+ * subpicture_region_New.
+ *
+ * Provided for convenience.
+ */
+VLC_EXPORT( void, subpicture_region_ChainDelete, ( subpicture_region_t *p_head ) );
+
/**
* Video subtitle
*
/** \name Type and flags
Should NOT be modified except by the vout thread */
/**@{*/
+ int64_t i_order; /** an increasing unique number */
int i_type; /**< type */
int i_status; /**< flags */
subpicture_t * p_next; /**< next subtitle to be displayed */
bool b_ephemer; /**< If this flag is set to true the subtitle
will be displayed untill the next one appear */
bool b_fade; /**< enable fading */
- bool b_pausable; /**< subpicture will be paused if
- stream is paused */
/**@}*/
subpicture_region_t *p_region; /**< region list composing this subtitle */
* changed by the video output thread, or simply ignored depending of the
* subtitle type. */
/**@{*/
- int i_x; /**< offset from alignment position */
- int i_y; /**< offset from alignment position */
- int i_width; /**< picture width */
- int i_height; /**< picture height */
- int i_alpha; /**< transparency */
int i_original_picture_width; /**< original width of the movie */
int i_original_picture_height;/**< original height of the movie */
+ bool b_subtitle; /**< the picture is a movie subtitle */
bool b_absolute; /**< position is absolute */
- int i_flags; /**< position flags */
+ int i_alpha; /**< transparency */
/**@}*/
/** Pointer to function that renders this subtitle in a picture */
void ( *pf_destroy ) ( subpicture_t * );
/** Pointer to functions for region management */
- subpicture_region_t * ( *pf_create_region ) ( vlc_object_t *,
- video_format_t * );
- subpicture_region_t * ( *pf_make_region ) ( vlc_object_t *,
- video_format_t *, picture_t * );
- void ( *pf_destroy_region ) ( vlc_object_t *, subpicture_region_t * );
-
- void ( *pf_pre_render ) ( video_format_t *, spu_t *, subpicture_t *, mtime_t );
- subpicture_region_t * ( *pf_update_regions ) ( video_format_t *, spu_t *,
- subpicture_t *, mtime_t );
+ void (*pf_pre_render) ( spu_t *, subpicture_t *, const video_format_t * );
+ void (*pf_update_regions)( spu_t *,
+ subpicture_t *, const video_format_t *, mtime_t );
/** Private data - the subtitle plugin might want to put stuff here to
* keep track of the subpicture */
* Prototypes
*****************************************************************************/
-/**
- * Copy the source picture onto the destination picture.
- * \param p_this a vlc object
- * \param p_dst pointer to the destination picture.
- * \param p_src pointer to the source picture.
- */
-#define vout_CopyPicture(a,b,c) __vout_CopyPicture(VLC_OBJECT(a),b,c)
-VLC_EXPORT( void, __vout_CopyPicture, ( vlc_object_t *p_this, picture_t *p_dst, picture_t *p_src ) );
-
/**
* Initialise different fields of a picture_t (but does not allocate memory).
* \param p_this a vlc object
unsigned int i_par_num; /**< monitor pixel aspect-ratio */
unsigned int i_par_den; /**< monitor pixel aspect-ratio */
- intf_thread_t *p_parent_intf; /**< parent interface for embedded
- vout (if any) */
+ struct vout_window_t *p_window; /**< window for embedded vout (if any) */
/**@}*/
/** \name Plugin used and shortcuts to access its capabilities */
/*****************************************************************************
* Prototypes
*****************************************************************************/
+
+/**
+ * This function will
+ * - returns a suitable vout (if requested by a non NULL p_fmt)
+ * - recycles an old vout (if given) by either destroying it or by saving it
+ * for latter usage.
+ *
+ * The purpose of this function is to avoid unnecessary creation/destruction of
+ * vout (and to allow optional vout reusing).
+ *
+ * You can call vout_Request on a vout created by vout_Create or by a previous
+ * call to vout_Request.
+ * You can release the returned value either by vout_Request or vout_Close()
+ * followed by a vlc_object_release() or shorter vout_CloseAndRelease()
+ *
+ * \param p_this a vlc object
+ * \param p_vout a vout candidate
+ * \param p_fmt the video format requested or NULL
+ * \return a vout if p_fmt is non NULL and the request is successfull, NULL
+ * otherwise
+ */
#define vout_Request(a,b,c) __vout_Request(VLC_OBJECT(a),b,c)
-VLC_EXPORT( vout_thread_t *, __vout_Request, ( vlc_object_t *, vout_thread_t *, video_format_t * ) );
+VLC_EXPORT( vout_thread_t *, __vout_Request, ( vlc_object_t *p_this, vout_thread_t *p_vout, video_format_t *p_fmt ) );
+
+/**
+ * This function will create a suitable vout for a given p_fmt. It will never
+ * reuse an already existing unused vout.
+ *
+ * You have to call either vout_Close or vout_Request on the returned value
+ * \param p_this a vlc object to which the returned vout will be attached
+ * \param p_fmt the video format requested
+ * \return a vout if the request is successfull, NULL otherwise
+ */
#define vout_Create(a,b) __vout_Create(VLC_OBJECT(a),b)
-VLC_EXPORT( vout_thread_t *, __vout_Create, ( vlc_object_t *, video_format_t * ) );
-VLC_EXPORT( int, vout_VarCallback, ( vlc_object_t *, const char *, vlc_value_t, vlc_value_t, void * ) );
+VLC_EXPORT( vout_thread_t *, __vout_Create, ( vlc_object_t *p_this, video_format_t *p_fmt ) );
+
+/**
+ * This function will close a vout created by vout_Create or vout_Request.
+ * The associated vout module is closed.
+ * Note: It is not released yet, you'll have to call vlc_object_release()
+ * or use the convenient vout_CloseAndRelease().
+ *
+ * \param p_vout the vout to close
+ */
+VLC_EXPORT( void, vout_Close, ( vout_thread_t *p_vout ) );
+/**
+ * This function will close a vout created by vout_Create
+ * and then release it.
+ *
+ * \param p_vout the vout to close and release
+ */
+static inline void vout_CloseAndRelease( vout_thread_t *p_vout )
+{
+ vout_Close( p_vout );
+ vlc_object_release( p_vout );
+}
+
+/* */
VLC_EXPORT( int, vout_ChromaCmp, ( uint32_t, uint32_t ) );
VLC_EXPORT( picture_t *, vout_CreatePicture, ( vout_thread_t *, bool, bool, unsigned int ) );
VLC_EXPORT( void, vout_LinkPicture, ( vout_thread_t *, picture_t * ) );
VLC_EXPORT( void, vout_UnlinkPicture, ( vout_thread_t *, picture_t * ) );
VLC_EXPORT( void, vout_PlacePicture, ( vout_thread_t *, unsigned int, unsigned int, unsigned int *, unsigned int *, unsigned int *, unsigned int * ) );
+
+/* DO NOT use vout_RenderPicture unless you are in src/video_ouput */
picture_t * vout_RenderPicture ( vout_thread_t *, picture_t *,
subpicture_t * );
+/* DO NOT use vout_CountPictureAvailable unless your are in src/input/dec.c (no exception) */
+int vout_CountPictureAvailable( vout_thread_t * );
+
VLC_EXPORT( int, vout_vaControlDefault, ( vout_thread_t *, int, va_list ) );
VLC_EXPORT( void *, vout_RequestWindow, ( vout_thread_t *, int *, int *, unsigned int *, unsigned int * ) );
VLC_EXPORT( void, vout_ReleaseWindow, ( vout_thread_t *, void * ) );
projects / vlc / blobdiff