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/*

 * video.h

 *

 * Copyright (C) 2000 Marcus Metzler <marcus@convergence.de>

 *                  & Ralph  Metzler <ralph@convergence.de>

 *                    for convergence integrated media GmbH

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public License

 * as published by the Free Software Foundation; either version 2.1

 * 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 Lesser 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.

 *

 */

#ifndef _DVBVIDEO_H_

#define _DVBVIDEO_H_

#include <linux/types.h>

#include <stdint.h>

#include <time.h>

typedef enum {

        VIDEO_FORMAT_4_3,     /* Select 4:3 format */

        VIDEO_FORMAT_16_9,    /* Select 16:9 format. */

        VIDEO_FORMAT_221_1    /* 2.21:1 */

} video_format_t;

typedef enum {

         VIDEO_SYSTEM_PAL,

         VIDEO_SYSTEM_NTSC,

         VIDEO_SYSTEM_PALN,

         VIDEO_SYSTEM_PALNc,

         VIDEO_SYSTEM_PALM,

         VIDEO_SYSTEM_NTSC60,

         VIDEO_SYSTEM_PAL60,

         VIDEO_SYSTEM_PALM60

} video_system_t;

typedef enum {

        VIDEO_PAN_SCAN,       /* use pan and scan format */

        VIDEO_LETTER_BOX,     /* use letterbox format */

        VIDEO_CENTER_CUT_OUT  /* use center cut out format */

} video_displayformat_t;

typedef struct {

        int w;

        int h;

        video_format_t aspect_ratio;

} video_size_t;

typedef enum {

        VIDEO_SOURCE_DEMUX, /* Select the demux as the main source */

        VIDEO_SOURCE_MEMORY /* If this source is selected, the stream

                               comes from the user through the write

                               system call */

} video_stream_source_t;

typedef enum {

        VIDEO_STOPPED, /* Video is stopped */

        VIDEO_PLAYING, /* Video is currently playing */

        VIDEO_FREEZED  /* Video is freezed */

} video_play_state_t;

/* Decoder commands */

#define VIDEO_CMD_PLAY        (0)

#define VIDEO_CMD_STOP        (1)

#define VIDEO_CMD_FREEZE      (2)

#define VIDEO_CMD_CONTINUE    (3)

/* Flags for VIDEO_CMD_FREEZE */

#define VIDEO_CMD_FREEZE_TO_BLACK       (1 << 0)

/* Flags for VIDEO_CMD_STOP */

#define VIDEO_CMD_STOP_TO_BLACK         (1 << 0)

#define VIDEO_CMD_STOP_IMMEDIATELY      (1 << 1)

/* Play input formats: */

/* The decoder has no special format requirements */

#define VIDEO_PLAY_FMT_NONE         (0)

/* The decoder requires full GOPs */

#define VIDEO_PLAY_FMT_GOP          (1)

/* The structure must be zeroed before use by the application

   This ensures it can be extended safely in the future. */

struct video_command {

        __u32 cmd;

        __u32 flags;

        union {

                struct {

                        __u64 pts;

                } stop;

                struct {

                        /* 0 or 1000 specifies normal speed,

                           1 specifies forward single stepping,

                           -1 specifies backward single stepping,

                           >1: playback at speed/1000 of the normal speed,

                           <-1: reverse playback at (-speed/1000) of the normal speed. */

                        __s32 speed;

                        __u32 format;

                } play;

                struct {

                        __u32 data[16];

                } raw;

        };

};

/* FIELD_UNKNOWN can be used if the hardware does not know whether

   the Vsync is for an odd, even or progressive (i.e. non-interlaced)

   field. */

#define VIDEO_VSYNC_FIELD_UNKNOWN       (0)

#define VIDEO_VSYNC_FIELD_ODD           (1)

#define VIDEO_VSYNC_FIELD_EVEN          (2)

#define VIDEO_VSYNC_FIELD_PROGRESSIVE   (3)

struct video_event {

        __s32 type;

#define VIDEO_EVENT_SIZE_CHANGED        1

#define VIDEO_EVENT_FRAME_RATE_CHANGED  2

#define VIDEO_EVENT_DECODER_STOPPED     3

#define VIDEO_EVENT_VSYNC               4

        __kernel_time_t timestamp;

        union {

                video_size_t size;

                unsigned int frame_rate;        /* in frames per 1000sec */

                unsigned char vsync_field;      /* unknown/odd/even/progressive */

        } u;

};

struct video_status {

        int                   video_blank;   /* blank video on freeze? */

        video_play_state_t    play_state;    /* current state of playback */

        video_stream_source_t stream_source; /* current source (demux/memory) */

        video_format_t        video_format;  /* current aspect ratio of stream*/

        video_displayformat_t display_format;/* selected cropping mode */

};

struct video_still_picture {

        char *iFrame;        /* pointer to a single iframe in memory */

        __s32 size;

};

typedef

struct video_highlight {

        int     active;      /*    1=show highlight, 0=hide highlight */

        __u8    contrast1;   /*    7- 4  Pattern pixel contrast */

                             /*    3- 0  Background pixel contrast */

        __u8    contrast2;   /*    7- 4  Emphasis pixel-2 contrast */

                             /*    3- 0  Emphasis pixel-1 contrast */

        __u8    color1;      /*    7- 4  Pattern pixel color */

                             /*    3- 0  Background pixel color */

        __u8    color2;      /*    7- 4  Emphasis pixel-2 color */

                             /*    3- 0  Emphasis pixel-1 color */

        __u32    ypos;       /*   23-22  auto action mode */

                             /*   21-12  start y */

                             /*    9- 0  end y */

        __u32    xpos;       /*   23-22  button color number */

                             /*   21-12  start x */

                             /*    9- 0  end x */

} video_highlight_t;

typedef struct video_spu {

        int active;

        int stream_id;

} video_spu_t;

typedef struct video_spu_palette {      /* SPU Palette information */

        int length;

        __u8 *palette;

} video_spu_palette_t;

typedef struct video_navi_pack {

        int length;          /* 0 ... 1024 */

        __u8 data[1024];

} video_navi_pack_t;

typedef __u16 video_attributes_t;

/*   bits: descr. */

/*   15-14 Video compression mode (0=MPEG-1, 1=MPEG-2) */

/*   13-12 TV system (0=525/60, 1=625/50) */

/*   11-10 Aspect ratio (0=4:3, 3=16:9) */

/*    9- 8 permitted display mode on 4:3 monitor (0=both, 1=only pan-sca */

/*    7    line 21-1 data present in GOP (1=yes, 0=no) */

/*    6    line 21-2 data present in GOP (1=yes, 0=no) */

/*    5- 3 source resolution (0=720x480/576, 1=704x480/576, 2=352x480/57 */

/*    2    source letterboxed (1=yes, 0=no) */

/*    0    film/camera mode (0=camera, 1=film (625/50 only)) */

/* bit definitions for capabilities: */

/* can the hardware decode MPEG1 and/or MPEG2? */

#define VIDEO_CAP_MPEG1   1

#define VIDEO_CAP_MPEG2   2

/* can you send a system and/or program stream to video device?

   (you still have to open the video and the audio device but only

    send the stream to the video device) */

#define VIDEO_CAP_SYS     4

#define VIDEO_CAP_PROG    8

/* can the driver also handle SPU, NAVI and CSS encoded data?

   (CSS API is not present yet) */

#define VIDEO_CAP_SPU    16

#define VIDEO_CAP_NAVI   32

#define VIDEO_CAP_CSS    64

#define VIDEO_STOP                 _IO('o', 21)

#define VIDEO_PLAY                 _IO('o', 22)

#define VIDEO_FREEZE               _IO('o', 23)

#define VIDEO_CONTINUE             _IO('o', 24)

#define VIDEO_SELECT_SOURCE        _IO('o', 25)

#define VIDEO_SET_BLANK            _IO('o', 26)

#define VIDEO_GET_STATUS           _IOR('o', 27, struct video_status)

#define VIDEO_GET_EVENT            _IOR('o', 28, struct video_event)

#define VIDEO_SET_DISPLAY_FORMAT   _IO('o', 29)

#define VIDEO_STILLPICTURE         _IOW('o', 30, struct video_still_picture)

#define VIDEO_FAST_FORWARD         _IO('o', 31)

#define VIDEO_SLOWMOTION           _IO('o', 32)

#define VIDEO_GET_CAPABILITIES     _IOR('o', 33, unsigned int)

#define VIDEO_CLEAR_BUFFER         _IO('o',  34)

#define VIDEO_SET_ID               _IO('o', 35)

#define VIDEO_SET_STREAMTYPE       _IO('o', 36)

#define VIDEO_SET_FORMAT           _IO('o', 37)

#define VIDEO_SET_SYSTEM           _IO('o', 38)

#define VIDEO_SET_HIGHLIGHT        _IOW('o', 39, video_highlight_t)

#define VIDEO_SET_SPU              _IOW('o', 50, video_spu_t)

#define VIDEO_SET_SPU_PALETTE      _IOW('o', 51, video_spu_palette_t)

#define VIDEO_GET_NAVI             _IOR('o', 52, video_navi_pack_t)

#define VIDEO_SET_ATTRIBUTES       _IO('o', 53)

#define VIDEO_GET_SIZE             _IOR('o', 55, video_size_t)

#define VIDEO_GET_FRAME_RATE       _IOR('o', 56, unsigned int)

/**

 * VIDEO_GET_PTS

 *

 * Read the 33 bit presentation time stamp as defined

 * in ITU T-REC-H.222.0 / ISO/IEC 13818-1.

 *

 * The PTS should belong to the currently played

 * frame if possible, but may also be a value close to it

 * like the PTS of the last decoded frame or the last PTS

 * extracted by the PES parser.

 */

#define VIDEO_GET_PTS              _IOR('o', 57, __u64)

/* Read the number of displayed frames since the decoder was started */

#define VIDEO_GET_FRAME_COUNT      _IOR('o', 58, __u64)

#define VIDEO_COMMAND              _IOWR('o', 59, struct video_command)

#define VIDEO_TRY_COMMAND          _IOWR('o', 60, struct video_command)

#endif /* _DVBVIDEO_H_ */