-/*******************************************************************************
+/*****************************************************************************
* video.h: common video definitions
- * (c)1999 VideoLAN
- *******************************************************************************
* This header is required by all modules which have to handle pictures. It
* includes all common video types and constants.
- *******************************************************************************
- * Requires:
- * "config.h"
- * "common.h"
- * "mtime.h"
- *******************************************************************************/
-
-/*******************************************************************************
- * picture_t: video picture
- *******************************************************************************
- * Any picture destined to be displayed by a video output thread should be
+ *****************************************************************************
+ * Copyright (C) 1999, 2000 VideoLAN
+ * $Id: video.h,v 1.46 2002/03/16 23:03:19 sam Exp $
+ *
+ * Authors: Vincent Seguin <seguin@via.ecp.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * plane_t: description of a planar graphic field
+ *****************************************************************************/
+typedef struct plane_s
+{
+ u8 *p_pixels; /* Start of the plane's data */
+
+ /* Variables used for fast memcpy operations */
+ int i_lines; /* Number of lines */
+ int i_pitch; /* Number of bytes in a line, including margins */
+
+ /* Size of a macropixel, defaults to 1 */
+ int i_pixel_bytes;
+
+ /* Is there a margin ? defaults to no */
+ boolean_t b_margin;
+
+ /* Variables used for pictures with margins */
+ int i_visible_bytes; /* How many real pixels are there ? */
+ boolean_t b_hidden; /* Are we allowed to write to the margin ? */
+
+} plane_t;
+
+/*****************************************************************************
+ * picture_t: video picture
+ *****************************************************************************
+ * Any picture destined to be displayed by a video output thread should be
* stored in this structure from it's creation to it's effective display.
* Picture type and flags should only be modified by the output thread. Note
* that an empty picture MUST have its flags set to 0.
- *******************************************************************************/
-typedef struct
+ *****************************************************************************/
+typedef struct picture_s
{
+ /* Picture data - data can always be freely modified, but p_data may
+ * NEVER be modified. A direct buffer can be handled as the plugin
+ * wishes, it can even swap p_pixels buffers. */
+ u8 *p_data;
+ plane_t p[ VOUT_MAX_PLANES ]; /* description of the planes */
+ int i_planes; /* number of allocated planes */
+
/* Type and flags - should NOT be modified except by the vout thread */
- int i_type; /* picture type */
- int i_status; /* picture flags */
-
- /* Picture properties - those properties are fixed at initialization and
- * should NOT be modified. Note that for YUV pictures, i_bytes_per_line is
- * the number of bytes for ONE of the Y, U or V pictures, and therefore the
- * number of bytes in the picture is 3 * i_height * i_bytes_per_line */
- int i_width; /* picture width */
- int i_height; /* picture height */
- int i_bytes_per_line; /* total number of bytes per line */
-
- /* Link reference counter - it can be modified using vout_Link and
- * vout_Unlink functions, or directly if the picture is independant */
- int i_refcount; /* link reference counter */
-
- /* Video properties - those properties should not be modified once
- * the picture is in a heap, but can be freely modified if it is
- * independant */
- mtime_t date; /* display date */
-
- /* Picture data - data can always be freely modified. p_data itself
- * (the pointer) should NEVER be modified. In YUV format, the p_y, p_u and
- * p_v data pointers refers to different areas of p_data, and should not
- * be freed */
- byte_t * p_data; /* picture data */
- byte_t * p_y; /* pointer to beginning of Y image in p_data */
- byte_t * p_u; /* pointer to beginning of U image in p_data */
- byte_t * p_v; /* pointer to beginning of V image in p_data */
+ int i_status; /* picture flags */
+ int i_type; /* is picture a direct buffer ? */
+ int i_matrix_coefficients; /* in YUV type, encoding type */
+
+ /* Picture management properties - these properties can be modified using
+ * the video output thread API, but should never be written directly */
+ int i_refcount; /* link reference counter */
+ mtime_t date; /* display date */
+
+ /* Picture dynamic properties - those properties can be changed by the
+ * decoder */
+ boolean_t b_progressive; /* is it a progressive frame ? */
+ boolean_t b_repeat_first_field; /* RFF bit */
+ boolean_t b_top_field_first; /* which field is first */
+
+ /* The picture heap we are attached to */
+ struct picture_heap_s* p_heap;
+
+ /* Private data - the video output plugin might want to put stuff here to
+ * keep track of the picture */
+ struct picture_sys_s *p_sys;
+
} picture_t;
+/*****************************************************************************
+ * picture_heap_t: video picture heap, either render (to store pictures used
+ * by the decoder) or output (to store pictures displayed by the vout plugin)
+ *****************************************************************************/
+typedef struct picture_heap_s
+{
+ int i_pictures; /* current heap size */
+
+ /* Picture static properties - those properties are fixed at initialization
+ * and should NOT be modified */
+ int i_width; /* picture width */
+ int i_height; /* picture height */
+ u32 i_chroma; /* picture chroma */
+ int i_aspect; /* aspect ratio */
+
+ /* Variables used for RGB planes */
+ int i_rmask, i_rrshift, i_lrshift;
+ int i_gmask, i_rgshift, i_lgshift;
+ int i_bmask, i_rbshift, i_lbshift;
+
+ /* Real pictures */
+ picture_t* pp_picture[VOUT_MAX_PICTURES]; /* pictures */
+
+} picture_heap_t;
+
+/* RGB2PIXEL: assemble RGB components to a pixel value, returns a u32 */
+#define RGB2PIXEL( p_vout, i_r, i_g, i_b ) \
+ (((((u32)i_r) >> p_vout->output.i_rrshift) << p_vout->output.i_lrshift) | \
+ ((((u32)i_g) >> p_vout->output.i_rgshift) << p_vout->output.i_lgshift) | \
+ ((((u32)i_b) >> p_vout->output.i_rbshift) << p_vout->output.i_lbshift))
+
+/*****************************************************************************
+ * Flags used to describe the status of a picture
+ *****************************************************************************/
+
+/* Picture type */
+#define EMPTY_PICTURE 0 /* empty buffer */
+#define MEMORY_PICTURE 100 /* heap-allocated buffer */
+#define DIRECT_PICTURE 200 /* direct buffer */
+
+/* Picture status */
+#define FREE_PICTURE 0 /* free and not allocated */
+#define RESERVED_PICTURE 1 /* allocated and reserved */
+#define RESERVED_DATED_PICTURE 2 /* waiting for DisplayPicture */
+#define RESERVED_DISP_PICTURE 3 /* waiting for a DatePicture */
+#define READY_PICTURE 4 /* ready for display */
+#define DISPLAYED_PICTURE 5 /* been displayed but is linked */
+#define DESTROYED_PICTURE 6 /* allocated but no more used */
-/* Pictures types */
-#define EMPTY_PICTURE 0 /* picture slot is empty and available */
-#define YUV_422_PICTURE 100 /* 4:2:2 YUV picture */
-#define YUV_442_PICTURE 101 /* 4:4:2 YUV picture */
-#define YUV_444_PICTURE 102 /* 4:4:4 YUV picture */
+/*****************************************************************************
+ * Flags used to describe picture format - see http://www.webartz.com/fourcc/
+ *****************************************************************************/
+
+/* Packed RGB formats */
+#define FOURCC_BI_RGB 0x00000000 /* RGB for 8bpp */
+#define FOURCC_RGB 0x32424752 /* alias for BI_RGB */
+#define FOURCC_BI_BITFIELDS 0x00000003 /* RGB, for 16, 24, 32bpp */
+#define FOURCC_RV15 0x35315652 /* RGB 15bpp, 0x1f, 0x7e0, 0xf800 */
+#define FOURCC_RV16 0x36315652 /* RGB 16bpp, 0x1f, 0x3e0, 0x7c00 */
+#define FOURCC_RV24 0x34325652 /* RGB 24bpp, 0xff, 0xff00, 0xff0000 */
+#define FOURCC_RV32 0x32335652 /* RGB 32bpp, 0xff, 0xff00, 0xff0000 */
+
+/* Planar YUV formats */
+#define FOURCC_I420 0x30323449 /* Planar 4:2:0, Y:U:V */
+#define FOURCC_IYUV 0x56555949 /* alias for I420 */
+#define FOURCC_YV12 0x32315659 /* Planar 4:2:0, Y:V:U */
+
+/* Packed YUV formats */
+#define FOURCC_IUYV 0x56595549 /* Packed 4:2:2, U:Y:V:Y, interlaced */
+#define FOURCC_UYVY 0x59565955 /* Packed 4:2:2, U:Y:V:Y */
+#define FOURCC_UYNV 0x564e5955 /* alias for UYVY */
+#define FOURCC_Y422 0x32323459 /* alias for UYVY */
+#define FOURCC_cyuv 0x76757963 /* Packed 4:2:2, U:Y:V:Y, reverted */
+#define FOURCC_YUY2 0x32595559 /* Packed 4:2:2, Y:U:Y:V */
+#define FOURCC_YUNV 0x564e5559 /* alias for YUY2 */
+#define FOURCC_YVYU 0x55585659 /* Packed 4:2:2, Y:V:Y:U */
+#define FOURCC_Y211 0x31313259 /* Packed 2:1:1, Y:U:Y:V */
+
+/* Custom formats which we use but which don't exist in the fourcc database */
+#define FOURCC_YMGA 0x41474d59 /* Planar Y, packed UV, from Matrox */
+#define FOURCC_I422 0x32323449 /* Planar 4:2:2, Y:U:V */
+#define FOURCC_I444 0x34343449 /* Planar 4:4:4, Y:U:V */
+
+/* Plane indices */
+#define Y_PLANE 0
+#define U_PLANE 1
+#define V_PLANE 2
+
+/* Shortcuts */
+#define Y_PIXELS p[Y_PLANE].p_pixels
+#define U_PIXELS p[U_PLANE].p_pixels
+#define V_PIXELS p[V_PLANE].p_pixels
+
+static __inline__ int vout_ChromaCmp( u32 i_chroma, u32 i_amorhc )
+{
+ /* If they are the same, they are the same ! */
+ if( i_chroma == i_amorhc )
+ {
+ return 1;
+ }
+
+ /* Check for equivalence classes */
+ switch( i_chroma )
+ {
+ case FOURCC_I420:
+ case FOURCC_IYUV:
+ case FOURCC_YV12:
+ switch( i_amorhc )
+ {
+ case FOURCC_I420:
+ case FOURCC_IYUV:
+ case FOURCC_YV12:
+ return 1;
+
+ default:
+ return 0;
+ }
+
+ case FOURCC_UYVY:
+ case FOURCC_UYNV:
+ case FOURCC_Y422:
+ switch( i_amorhc )
+ {
+ case FOURCC_UYVY:
+ case FOURCC_UYNV:
+ case FOURCC_Y422:
+ return 1;
+
+ default:
+ return 0;
+ }
+
+ case FOURCC_YUY2:
+ case FOURCC_YUNV:
+ switch( i_amorhc )
+ {
+ case FOURCC_YUY2:
+ case FOURCC_YUNV:
+ return 1;
+
+ default:
+ return 0;
+ }
+
+ default:
+ return 0;
+ }
+}
+
+/*****************************************************************************
+ * vout_CopyPicture: copy a picture to another one
+ *****************************************************************************
+ * This function takes advantage of the image format, and reduces the
+ * number of calls to memcpy() to the minimum. Source and destination
+ * images must have same width, height, and chroma.
+ *****************************************************************************/
+static __inline__ void vout_CopyPicture( picture_t *p_src, picture_t *p_dest )
+{
+ int i;
+
+ for( i = 0; i < p_src->i_planes ; i++ )
+ {
+ if( p_src->p[i].i_pitch == p_dest->p[i].i_pitch )
+ {
+ if( p_src->p[i].b_margin )
+ {
+ /* If p_src->b_margin is set, p_dest->b_margin must be set */
+ if( p_dest->p[i].b_hidden )
+ {
+ /* There are margins, but they are hidden : perfect ! */
+ FAST_MEMCPY( p_dest->p[i].p_pixels, p_src->p[i].p_pixels,
+ p_src->p[i].i_pitch * p_src->p[i].i_lines );
+ continue;
+ }
+ else
+ {
+ /* We can't directly copy the margin. Too bad. */
+ }
+ }
+ else
+ {
+ /* Same pitch, no margins : perfect ! */
+ FAST_MEMCPY( p_dest->p[i].p_pixels, p_src->p[i].p_pixels,
+ p_src->p[i].i_pitch * p_src->p[i].i_lines );
+ continue;
+ }
+ }
+ else
+ {
+ /* Pitch values are different */
+ }
+
+ /* We need to proceed line by line */
+ {
+ u8 *p_in = p_src->p[i].p_pixels, *p_out = p_dest->p[i].p_pixels;
+ int i_line;
+
+ for( i_line = p_src->p[i].i_lines; i_line--; )
+ {
+ FAST_MEMCPY( p_out, p_in, p_src->p[i].i_visible_bytes );
+ p_in += p_src->p[i].i_pitch;
+ p_out += p_dest->p[i].i_pitch;
+ }
+ }
+ }
+}
+
+/*****************************************************************************
+ * subpicture_t: video subtitle
+ *****************************************************************************
+ * Any subtitle destined to be displayed by a video output thread should
+ * be stored in this structure from it's creation to it's effective display.
+ * Subtitle type and flags should only be modified by the output thread. Note
+ * that an empty subtitle MUST have its flags set to 0.
+ *****************************************************************************/
+typedef struct subpicture_s
+{
+ /* Type and flags - should NOT be modified except by the vout thread */
+ int i_type; /* type */
+ int i_status; /* flags */
+ int i_size; /* data size */
+ struct subpicture_s * p_next; /* next subtitle to be displayed */
-/* Pictures status */
-#define FREE_PICTURE 0 /* picture is free and not allocated */
-#define RESERVED_PICTURE 1 /* picture is allocated and reserved */
-#define READY_PICTURE 2 /* picture is ready for display */
-#define DISPLAYED_PICTURE 3 /* picture has been displayed but is linked */
-#define DESTROYED_PICTURE 4 /* picture is allocated but no more used */
+ /* Date properties */
+ mtime_t i_start; /* beginning of display date */
+ mtime_t i_stop; /* end of display date */
+ boolean_t b_ephemer; /* does the subtitle have a TTL ? */
+ /* Display properties - these properties are only indicative and may be
+ * 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 */
+#if 0
+ /* Additionnal properties depending of the subpicture type */
+ union
+ {
+ /* Text subpictures properties - text is stored in data area, in ASCIIZ
+ * format */
+ struct
+ {
+ p_vout_font_t p_font; /* font, NULL for default */
+ int i_style; /* text style */
+ u32 i_char_color; /* character color */
+ u32 i_border_color; /* border color */
+ u32 i_bg_color; /* background color */
+ } text;
+ } type;
+#endif
+ /* The subpicture rendering routine */
+ void ( *pf_render ) ( const struct vout_thread_s *, picture_t *,
+ const struct subpicture_s * );
+ /* Private data - the subtitle plugin might want to put stuff here to
+ * keep track of the subpicture */
+ struct subpicture_sys_s *p_sys; /* subpicture data */
+} subpicture_t;
+/* Subpicture type */
+#define EMPTY_SUBPICTURE 0 /* subtitle slot is empty and available */
+#define MEMORY_SUBPICTURE 100 /* subpicture stored in memory */
+/* Subpicture status */
+#define FREE_SUBPICTURE 0 /* free and not allocated */
+#define RESERVED_SUBPICTURE 1 /* allocated and reserved */
+#define READY_SUBPICTURE 2 /* ready for display */
+#define DESTROYED_SUBPICTURE 3 /* allocated but not used anymore */
projects / vlc / blobdiff