source: titan/titan/include/linux/dvb/video.h @ 43002

Last change on this file since 43002 was 43002, checked in by obi, 23 months ago

add header

File size: 8.5 KB
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1/*
2 * video.h
3 *
4 * Copyright (C) 2000 Marcus Metzler <marcus@convergence.de>
5 *                  & Ralph  Metzler <ralph@convergence.de>
6 *                    for convergence integrated media GmbH
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public License
10 * as published by the Free Software Foundation; either version 2.1
11 * of the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
21 *
22 */
23
24#ifndef _UAPI_DVBVIDEO_H_
25#define _UAPI_DVBVIDEO_H_
26
27#include <linux/types.h>
28#ifndef __KERNEL__
29#include <stdint.h>
30#include <time.h>
31#endif
32
33typedef enum {
34        VIDEO_FORMAT_4_3,     /* Select 4:3 format */
35        VIDEO_FORMAT_16_9,    /* Select 16:9 format. */
36        VIDEO_FORMAT_221_1    /* 2.21:1 */
37} video_format_t;
38
39
40typedef enum {
41         VIDEO_SYSTEM_PAL,
42         VIDEO_SYSTEM_NTSC,
43         VIDEO_SYSTEM_PALN,
44         VIDEO_SYSTEM_PALNc,
45         VIDEO_SYSTEM_PALM,
46         VIDEO_SYSTEM_NTSC60,
47         VIDEO_SYSTEM_PAL60,
48         VIDEO_SYSTEM_PALM60
49} video_system_t;
50
51
52typedef enum {
53        VIDEO_PAN_SCAN,       /* use pan and scan format */
54        VIDEO_LETTER_BOX,     /* use letterbox format */
55        VIDEO_CENTER_CUT_OUT  /* use center cut out format */
56} video_displayformat_t;
57
58typedef struct {
59        int w;
60        int h;
61        video_format_t aspect_ratio;
62} video_size_t;
63
64typedef enum {
65        VIDEO_SOURCE_DEMUX, /* Select the demux as the main source */
66        VIDEO_SOURCE_MEMORY /* If this source is selected, the stream
67                               comes from the user through the write
68                               system call */
69} video_stream_source_t;
70
71
72typedef enum {
73        VIDEO_STOPPED, /* Video is stopped */
74        VIDEO_PLAYING, /* Video is currently playing */
75        VIDEO_FREEZED  /* Video is freezed */
76} video_play_state_t;
77
78
79/* Decoder commands */
80#define VIDEO_CMD_PLAY        (0)
81#define VIDEO_CMD_STOP        (1)
82#define VIDEO_CMD_FREEZE      (2)
83#define VIDEO_CMD_CONTINUE    (3)
84
85/* Flags for VIDEO_CMD_FREEZE */
86#define VIDEO_CMD_FREEZE_TO_BLACK       (1 << 0)
87
88/* Flags for VIDEO_CMD_STOP */
89#define VIDEO_CMD_STOP_TO_BLACK         (1 << 0)
90#define VIDEO_CMD_STOP_IMMEDIATELY      (1 << 1)
91
92/* Play input formats: */
93/* The decoder has no special format requirements */
94#define VIDEO_PLAY_FMT_NONE         (0)
95/* The decoder requires full GOPs */
96#define VIDEO_PLAY_FMT_GOP          (1)
97
98/* The structure must be zeroed before use by the application
99   This ensures it can be extended safely in the future. */
100struct video_command {
101        __u32 cmd;
102        __u32 flags;
103        union {
104                struct {
105                        __u64 pts;
106                } stop;
107
108                struct {
109                        /* 0 or 1000 specifies normal speed,
110                           1 specifies forward single stepping,
111                           -1 specifies backward single stepping,
112                           >1: playback at speed/1000 of the normal speed,
113                           <-1: reverse playback at (-speed/1000) of the normal speed. */
114                        __s32 speed;
115                        __u32 format;
116                } play;
117
118                struct {
119                        __u32 data[16];
120                } raw;
121        };
122};
123
124/* FIELD_UNKNOWN can be used if the hardware does not know whether
125   the Vsync is for an odd, even or progressive (i.e. non-interlaced)
126   field. */
127#define VIDEO_VSYNC_FIELD_UNKNOWN       (0)
128#define VIDEO_VSYNC_FIELD_ODD           (1)
129#define VIDEO_VSYNC_FIELD_EVEN          (2)
130#define VIDEO_VSYNC_FIELD_PROGRESSIVE   (3)
131
132struct video_event {
133        __s32 type;
134#define VIDEO_EVENT_SIZE_CHANGED        1
135#define VIDEO_EVENT_FRAME_RATE_CHANGED  2
136#define VIDEO_EVENT_DECODER_STOPPED     3
137#define VIDEO_EVENT_VSYNC               4
138        __kernel_time_t timestamp;
139        union {
140                video_size_t size;
141                unsigned int frame_rate;        /* in frames per 1000sec */
142                unsigned char vsync_field;      /* unknown/odd/even/progressive */
143        } u;
144};
145
146
147struct video_status {
148        int                   video_blank;   /* blank video on freeze? */
149        video_play_state_t    play_state;    /* current state of playback */
150        video_stream_source_t stream_source; /* current source (demux/memory) */
151        video_format_t        video_format;  /* current aspect ratio of stream*/
152        video_displayformat_t display_format;/* selected cropping mode */
153};
154
155
156struct video_still_picture {
157        char *iFrame;        /* pointer to a single iframe in memory */
158        __s32 size;
159};
160
161
162typedef
163struct video_highlight {
164        int     active;      /*    1=show highlight, 0=hide highlight */
165        __u8    contrast1;   /*    7- 4  Pattern pixel contrast */
166                             /*    3- 0  Background pixel contrast */
167        __u8    contrast2;   /*    7- 4  Emphasis pixel-2 contrast */
168                             /*    3- 0  Emphasis pixel-1 contrast */
169        __u8    color1;      /*    7- 4  Pattern pixel color */
170                             /*    3- 0  Background pixel color */
171        __u8    color2;      /*    7- 4  Emphasis pixel-2 color */
172                             /*    3- 0  Emphasis pixel-1 color */
173        __u32    ypos;       /*   23-22  auto action mode */
174                             /*   21-12  start y */
175                             /*    9- 0  end y */
176        __u32    xpos;       /*   23-22  button color number */
177                             /*   21-12  start x */
178                             /*    9- 0  end x */
179} video_highlight_t;
180
181
182typedef struct video_spu {
183        int active;
184        int stream_id;
185} video_spu_t;
186
187
188typedef struct video_spu_palette {      /* SPU Palette information */
189        int length;
190        __u8 *palette;
191} video_spu_palette_t;
192
193
194typedef struct video_navi_pack {
195        int length;          /* 0 ... 1024 */
196        __u8 data[1024];
197} video_navi_pack_t;
198
199
200typedef __u16 video_attributes_t;
201/*   bits: descr. */
202/*   15-14 Video compression mode (0=MPEG-1, 1=MPEG-2) */
203/*   13-12 TV system (0=525/60, 1=625/50) */
204/*   11-10 Aspect ratio (0=4:3, 3=16:9) */
205/*    9- 8 permitted display mode on 4:3 monitor (0=both, 1=only pan-sca */
206/*    7    line 21-1 data present in GOP (1=yes, 0=no) */
207/*    6    line 21-2 data present in GOP (1=yes, 0=no) */
208/*    5- 3 source resolution (0=720x480/576, 1=704x480/576, 2=352x480/57 */
209/*    2    source letterboxed (1=yes, 0=no) */
210/*    0    film/camera mode (0=camera, 1=film (625/50 only)) */
211
212
213/* bit definitions for capabilities: */
214/* can the hardware decode MPEG1 and/or MPEG2? */
215#define VIDEO_CAP_MPEG1   1
216#define VIDEO_CAP_MPEG2   2
217/* can you send a system and/or program stream to video device?
218   (you still have to open the video and the audio device but only
219    send the stream to the video device) */
220#define VIDEO_CAP_SYS     4
221#define VIDEO_CAP_PROG    8
222/* can the driver also handle SPU, NAVI and CSS encoded data?
223   (CSS API is not present yet) */
224#define VIDEO_CAP_SPU    16
225#define VIDEO_CAP_NAVI   32
226#define VIDEO_CAP_CSS    64
227
228
229#define VIDEO_STOP                 _IO('o', 21)
230#define VIDEO_PLAY                 _IO('o', 22)
231#define VIDEO_FREEZE               _IO('o', 23)
232#define VIDEO_CONTINUE             _IO('o', 24)
233#define VIDEO_SELECT_SOURCE        _IO('o', 25)
234#define VIDEO_SET_BLANK            _IO('o', 26)
235#define VIDEO_GET_STATUS           _IOR('o', 27, struct video_status)
236#define VIDEO_GET_EVENT            _IOR('o', 28, struct video_event)
237#define VIDEO_SET_DISPLAY_FORMAT   _IO('o', 29)
238#define VIDEO_STILLPICTURE         _IOW('o', 30, struct video_still_picture)
239#define VIDEO_FAST_FORWARD         _IO('o', 31)
240#define VIDEO_SLOWMOTION           _IO('o', 32)
241#define VIDEO_GET_CAPABILITIES     _IOR('o', 33, unsigned int)
242#define VIDEO_CLEAR_BUFFER         _IO('o',  34)
243#define VIDEO_SET_ID               _IO('o', 35)
244#define VIDEO_SET_STREAMTYPE       _IO('o', 36)
245#define VIDEO_SET_FORMAT           _IO('o', 37)
246#define VIDEO_SET_SYSTEM           _IO('o', 38)
247#define VIDEO_SET_HIGHLIGHT        _IOW('o', 39, video_highlight_t)
248#define VIDEO_SET_SPU              _IOW('o', 50, video_spu_t)
249#define VIDEO_SET_SPU_PALETTE      _IOW('o', 51, video_spu_palette_t)
250#define VIDEO_GET_NAVI             _IOR('o', 52, video_navi_pack_t)
251#define VIDEO_SET_ATTRIBUTES       _IO('o', 53)
252#define VIDEO_GET_SIZE             _IOR('o', 55, video_size_t)
253#define VIDEO_GET_FRAME_RATE       _IOR('o', 56, unsigned int)
254
255/**
256 * VIDEO_GET_PTS
257 *
258 * Read the 33 bit presentation time stamp as defined
259 * in ITU T-REC-H.222.0 / ISO/IEC 13818-1.
260 *
261 * The PTS should belong to the currently played
262 * frame if possible, but may also be a value close to it
263 * like the PTS of the last decoded frame or the last PTS
264 * extracted by the PES parser.
265 */
266#define VIDEO_GET_PTS              _IOR('o', 57, __u64)
267
268/* Read the number of displayed frames since the decoder was started */
269#define VIDEO_GET_FRAME_COUNT      _IOR('o', 58, __u64)
270
271#define VIDEO_COMMAND              _IOWR('o', 59, struct video_command)
272#define VIDEO_TRY_COMMAND          _IOWR('o', 60, struct video_command)
273
274#endif /* _UAPI_DVBVIDEO_H_ */
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