* includes all common video types and constants.
*****************************************************************************
* Copyright (C) 1999, 2000 VideoLAN
- * $Id: video.h,v 1.32 2001/08/22 17:21:45 massiot Exp $
+ * $Id: video.h,v 1.39 2002/01/04 14:01:34 sam Exp $
*
* Authors: Vincent Seguin <seguin@via.ecp.fr>
*
*****************************************************************************/
/*****************************************************************************
- * Requires:
- * "config.h"
- * "common.h"
- * "mtime.h"
+ * 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 ? */
+
+ /* Variables used for RGB planes */
+ int i_red_mask;
+ int i_green_mask;
+ int i_blue_mask;
+
+} plane_t;
/*****************************************************************************
* picture_t: video picture
*****************************************************************************/
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 */
+ 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 ne be written directly */
+ * 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 */
+
+ /* Macroblock counter - the decoder uses it to verify if it has
+ * decoded all the macroblocks of the picture */
+ int i_deccount;
+ vlc_mutex_t lock_deccount;
+
+ /* 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_chroma_width; /* chroma width */
int i_height; /* picture height */
- int i_size; /* number of pels */
- int i_chroma_size; /* number of chroma pels */
+ u32 i_chroma; /* picture chroma */
+ int i_aspect; /* aspect ratio */
- /* Picture dynamic properties - those properties can be changed by the
- * decoder */
- int i_display_horizontal_offset; /* ISO/IEC 13818-2 6.3.12 */
- int i_display_vertical_offset; /* ISO/IEC 13818-2 6.3.12 */
- int i_display_width; /* useful picture width */
- int i_display_height; /* useful picture height */
- int i_aspect_ratio; /* aspect ratio */
-
- /* 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 */
- void * p_data; /* picture data */
- yuv_data_t * p_y; /* pointer to beginning of Y image in p_data */
- yuv_data_t * p_u; /* pointer to beginning of U image in p_data */
- yuv_data_t * p_v; /* pointer to beginning of V image in p_data */
-} picture_t;
+ /* Real pictures */
+ picture_t* pp_picture[VOUT_MAX_PICTURES]; /* pictures */
+
+} picture_heap_t;
-/* Pictures types */
-#define EMPTY_PICTURE 0 /* picture slot is empty and available */
-#define YUV_420_PICTURE 100 /* 4:2:0 YUV picture */
-#define YUV_422_PICTURE 101 /* 4:2:2 YUV picture */
-#define YUV_444_PICTURE 102 /* 4:4:4 YUV picture */
+/*****************************************************************************
+ * 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 */
-/* Pictures status */
+/* 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 DISPLAYED_PICTURE 5 /* been displayed but is linked */
#define DESTROYED_PICTURE 6 /* allocated but no more used */
-/* Aspect ratios (ISO/IEC 13818-2 section 6.3.3, table 6-3) */
-#define AR_SQUARE_PICTURE 1 /* square pixels */
-#define AR_3_4_PICTURE 2 /* 3:4 picture (TV) */
-#define AR_16_9_PICTURE 3 /* 16:9 picture (wide screen) */
-#define AR_221_1_PICTURE 4 /* 2.21:1 picture (movie) */
+/*****************************************************************************
+ * 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 */
+
+/* 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_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
+
+/*****************************************************************************
+ * 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
projects / vlc / blobdiff