mirror of
https://code.videolan.org/videolan/vlc
synced 2024-09-12 13:44:56 +02:00
3b8adcbd9c
au pr�c�dent commit. . d�but du d�codeur de sous-titres. Pour le moment il ne fait que parser le flux comme un cochon, c'est tout.
184 lines
9.7 KiB
C
184 lines
9.7 KiB
C
/*****************************************************************************
|
|
* video.h: common video definitions
|
|
* This header is required by all modules which have to handle pictures. It
|
|
* includes all common video types and constants.
|
|
*****************************************************************************
|
|
* Copyright (C) 1999, 2000 VideoLAN
|
|
*
|
|
* Authors:
|
|
*
|
|
* 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 02111-1307, USA.
|
|
*****************************************************************************/
|
|
|
|
/*****************************************************************************
|
|
* Requires:
|
|
* "config.h"
|
|
* "common.h"
|
|
* "mtime.h"
|
|
*****************************************************************************/
|
|
|
|
/*****************************************************************************
|
|
* yuv_data_t: type for storing one Y, U or V sample.
|
|
*****************************************************************************/
|
|
typedef u8 yuv_data_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 picture_s
|
|
{
|
|
/* Type and flags - should NOT be modified except by the vout thread */
|
|
int i_type; /* picture type */
|
|
int i_status; /* picture flags */
|
|
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 */
|
|
int i_refcount; /* link reference counter */
|
|
mtime_t date; /* display date */
|
|
|
|
/* Picture static properties - those properties are fixed at initialization
|
|
* and should NOT be modified */
|
|
int i_width; /* picture width */
|
|
int i_height; /* picture height */
|
|
int i_chroma_width; /* chroma width */
|
|
|
|
/* 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 */
|
|
|
|
/* Macroblock counter - the decoder use it to verify if it has
|
|
* decoded all the macroblocks of the picture */
|
|
int i_deccount;
|
|
vlc_mutex_t lock_deccount;
|
|
|
|
/* 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;
|
|
|
|
/* 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 */
|
|
|
|
/* Pictures status */
|
|
#define FREE_PICTURE 0 /* picture is free and not allocated */
|
|
#define RESERVED_PICTURE 1 /* picture is allocated and reserved */
|
|
#define RESERVED_DATED_PICTURE 2 /* picture is waiting for DisplayPicture */
|
|
#define RESERVED_DISP_PICTURE 3 /* picture is waiting for a DatePixture */
|
|
#define READY_PICTURE 4 /* picture is ready for display */
|
|
#define DISPLAYED_PICTURE 5/* picture has been displayed but is linked */
|
|
#define DESTROYED_PICTURE 6 /* picture is 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) */
|
|
|
|
/*****************************************************************************
|
|
* subpicture_t: video sub picture unit
|
|
*****************************************************************************
|
|
* Any sub picture unit 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 */
|
|
|
|
/* Other properties */
|
|
mtime_t begin_date; /* beginning of display date */
|
|
mtime_t end_date; /* end of display date */
|
|
|
|
/* Display properties - these properties are only indicative and may be
|
|
* changed by the video output thread, or simply ignored depending of the
|
|
* subpicture 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_horizontal_align; /* horizontal alignment */
|
|
int i_vertical_align; /* vertical alignment */
|
|
|
|
/* 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;
|
|
|
|
/* Subpicture data, format depends of type - data can always be freely
|
|
* modified. p_data itself (the pointer) should NEVER be modified. */
|
|
void * p_data; /* subpicture data */
|
|
} subpicture_t;
|
|
|
|
/* Subpicture type */
|
|
#define EMPTY_SUBPICTURE 0 /* subtitle slot is empty and available */
|
|
#define DVD_SUBPICTURE 100 /* DVD subpicture unit */
|
|
#define TEXT_SUBPICTURE 200 /* single line text */
|
|
|
|
/* Subpicture status */
|
|
#define FREE_SUBPICTURE 0 /* subpicture is free and not allocated */
|
|
#define RESERVED_SUBPICTURE 1 /* subpicture is allocated and reserved */
|
|
#define READY_SUBPICTURE 2 /* subpicture is ready for display */
|
|
#define DESTROYED_SUBPICTURE 3/* subpicture is allocated but no more used */
|
|
|
|
/* Alignment types */
|
|
#define RIGHT_ALIGN 10 /* x is absolute for right */
|
|
#define LEFT_ALIGN 11 /* x is absolute for left */
|
|
#define RIGHT_RALIGN 12 /* x is relative for right from right */
|
|
#define LEFT_RALIGN 13 /* x is relative for left from left */
|
|
|
|
#define CENTER_ALIGN 20 /* x, y are absolute for center */
|
|
#define CENTER_RALIGN 21 /* x, y are relative for center from center */
|
|
|
|
#define BOTTOM_ALIGN 30 /* y is absolute for bottom */
|
|
#define TOP_ALIGN 31 /* y is absolute for top */
|
|
#define BOTTOM_RALIGN 32 /* y is relative for bottom from bottom */
|
|
#define TOP_RALIGN 33 /* y is relative for top from top */
|
|
#define SUBTITLE_RALIGN 34 /* y is relative for center from subtitle */
|
|
|
|
|