video.h
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上传日期:2009-04-28
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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/compiler.h>
- #ifdef __KERNEL__
- #include <linux/types.h>
- #else
- #include <stdint.h>
- #include <time.h>
- #endif
- 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;
- struct video_event {
- int32_t type;
- #define VIDEO_EVENT_SIZE_CHANGED 1
- #define VIDEO_EVENT_FRAME_RATE_CHANGED 2
- time_t timestamp;
- union {
- video_size_t size;
- unsigned int frame_rate; /* in frames per 1000sec */
- } 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 __user *iFrame; /* pointer to a single iframe in memory */
- int32_t size;
- };
- typedef
- struct video_highlight {
- int active; /* 1=show highlight, 0=hide highlight */
- uint8_t contrast1; /* 7- 4 Pattern pixel contrast */
- /* 3- 0 Background pixel contrast */
- uint8_t contrast2; /* 7- 4 Emphasis pixel-2 contrast */
- /* 3- 0 Emphasis pixel-1 contrast */
- uint8_t color1; /* 7- 4 Pattern pixel color */
- /* 3- 0 Background pixel color */
- uint8_t color2; /* 7- 4 Emphasis pixel-2 color */
- /* 3- 0 Emphasis pixel-1 color */
- uint32_t ypos; /* 23-22 auto action mode */
- /* 21-12 start y */
- /* 9- 0 end y */
- uint32_t 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;
- uint8_t *palette;
- } video_spu_palette_t;
- typedef struct video_navi_pack {
- int length; /* 0 ... 1024 */
- uint8_t data[1024];
- } video_navi_pack_t;
- typedef uint16_t 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)
- #endif /*_DVBVIDEO_H_*/