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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 <time.h>
30#endif
31
32typedef enum {
33 VIDEO_FORMAT_4_3, /* Select 4:3 format */
34 VIDEO_FORMAT_16_9, /* Select 16:9 format. */
35 VIDEO_FORMAT_221_1 /* 2.21:1 */
36} video_format_t;
37
38
39typedef enum {
40 VIDEO_SYSTEM_PAL,
41 VIDEO_SYSTEM_NTSC,
42 VIDEO_SYSTEM_PALN,
43 VIDEO_SYSTEM_PALNc,
44 VIDEO_SYSTEM_PALM,
45 VIDEO_SYSTEM_NTSC60,
46 VIDEO_SYSTEM_PAL60,
47 VIDEO_SYSTEM_PALM60
48} video_system_t;
49
50
51typedef enum {
52 VIDEO_PAN_SCAN, /* use pan and scan format */
53 VIDEO_LETTER_BOX, /* use letterbox format */
54 VIDEO_CENTER_CUT_OUT /* use center cut out format */
55} video_displayformat_t;
56
57typedef struct {
58 int w;
59 int h;
60 video_format_t aspect_ratio;
61} video_size_t;
62
63typedef enum {
64 VIDEO_SOURCE_DEMUX, /* Select the demux as the main source */
65 VIDEO_SOURCE_MEMORY /* If this source is selected, the stream
66 comes from the user through the write
67 system call */
68} video_stream_source_t;
69
70
71typedef enum {
72 VIDEO_STOPPED, /* Video is stopped */
73 VIDEO_PLAYING, /* Video is currently playing */
74 VIDEO_FREEZED /* Video is freezed */
75} video_play_state_t;
76
77
78/* Decoder commands */
79#define VIDEO_CMD_PLAY (0)
80#define VIDEO_CMD_STOP (1)
81#define VIDEO_CMD_FREEZE (2)
82#define VIDEO_CMD_CONTINUE (3)
83
84/* Flags for VIDEO_CMD_FREEZE */
85#define VIDEO_CMD_FREEZE_TO_BLACK (1 << 0)
86
87/* Flags for VIDEO_CMD_STOP */
88#define VIDEO_CMD_STOP_TO_BLACK (1 << 0)
89#define VIDEO_CMD_STOP_IMMEDIATELY (1 << 1)
90
91/* Play input formats: */
92/* The decoder has no special format requirements */
93#define VIDEO_PLAY_FMT_NONE (0)
94/* The decoder requires full GOPs */
95#define VIDEO_PLAY_FMT_GOP (1)
96
97/* The structure must be zeroed before use by the application
98 This ensures it can be extended safely in the future. */
99struct video_command {
100 __u32 cmd;
101 __u32 flags;
102 union {
103 struct {
104 __u64 pts;
105 } stop;
106
107 struct {
108 /* 0 or 1000 specifies normal speed,
109 1 specifies forward single stepping,
110 -1 specifies backward single stepping,
111 >1: playback at speed/1000 of the normal speed,
112 <-1: reverse playback at (-speed/1000) of the normal speed. */
113 __s32 speed;
114 __u32 format;
115 } play;
116
117 struct {
118 __u32 data[16];
119 } raw;
120 };
121};
122
123/* FIELD_UNKNOWN can be used if the hardware does not know whether
124 the Vsync is for an odd, even or progressive (i.e. non-interlaced)
125 field. */
126#define VIDEO_VSYNC_FIELD_UNKNOWN (0)
127#define VIDEO_VSYNC_FIELD_ODD (1)
128#define VIDEO_VSYNC_FIELD_EVEN (2)
129#define VIDEO_VSYNC_FIELD_PROGRESSIVE (3)
130
131struct video_event {
132 __s32 type;
133#define VIDEO_EVENT_SIZE_CHANGED 1
134#define VIDEO_EVENT_FRAME_RATE_CHANGED 2
135#define VIDEO_EVENT_DECODER_STOPPED 3
136#define VIDEO_EVENT_VSYNC 4
137 /* unused, make sure to use atomic time for y2038 if it ever gets used */
138 long 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 __user *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 __user *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=
211 *camera, 1=film (625/50 only)) */
212
213
214/* bit definitions for capabilities: */
215/* can the hardware decode MPEG1 and/or MPEG2? */
216#define VIDEO_CAP_MPEG1 1
217#define VIDEO_CAP_MPEG2 2
218/* can you send a system and/or program stream to video device?
219 (you still have to open the video and the audio device but only
220 send the stream to the video device) */
221#define VIDEO_CAP_SYS 4
222#define VIDEO_CAP_PROG 8
223/* can the driver also handle SPU, NAVI and CSS encoded data?
224 (CSS API is not present yet) */
225#define VIDEO_CAP_SPU 16
226#define VIDEO_CAP_NAVI 32
227#define VIDEO_CAP_CSS 64
228
229
230#define VIDEO_STOP _IO('o', 21)
231#define VIDEO_PLAY _IO('o', 22)
232#define VIDEO_FREEZE _IO('o', 23)
233#define VIDEO_CONTINUE _IO('o', 24)
234#define VIDEO_SELECT_SOURCE _IO('o', 25)
235#define VIDEO_SET_BLANK _IO('o', 26)
236#define VIDEO_GET_STATUS _IOR('o', 27, struct video_status)
237#define VIDEO_GET_EVENT _IOR('o', 28, struct video_event)
238#define VIDEO_SET_DISPLAY_FORMAT _IO('o', 29)
239#define VIDEO_STILLPICTURE _IOW('o', 30, struct video_still_picture)
240#define VIDEO_FAST_FORWARD _IO('o', 31)
241#define VIDEO_SLOWMOTION _IO('o', 32)
242#define VIDEO_GET_CAPABILITIES _IOR('o', 33, unsigned int)
243#define VIDEO_CLEAR_BUFFER _IO('o', 34)
244#define VIDEO_SET_ID _IO('o', 35)
245#define VIDEO_SET_STREAMTYPE _IO('o', 36)
246#define VIDEO_SET_FORMAT _IO('o', 37)
247#define VIDEO_SET_SYSTEM _IO('o', 38)
248#define VIDEO_SET_HIGHLIGHT _IOW('o', 39, video_highlight_t)
249#define VIDEO_SET_SPU _IOW('o', 50, video_spu_t)
250#define VIDEO_SET_SPU_PALETTE _IOW('o', 51, video_spu_palette_t)
251#define VIDEO_GET_NAVI _IOR('o', 52, video_navi_pack_t)
252#define VIDEO_SET_ATTRIBUTES _IO('o', 53)
253#define VIDEO_GET_SIZE _IOR('o', 55, video_size_t)
254#define VIDEO_GET_FRAME_RATE _IOR('o', 56, unsigned int)
255
256/**
257 * VIDEO_GET_PTS
258 *
259 * Read the 33 bit presentation time stamp as defined
260 * in ITU T-REC-H.222.0 / ISO/IEC 13818-1.
261 *
262 * The PTS should belong to the currently played
263 * frame if possible, but may also be a value close to it
264 * like the PTS of the last decoded frame or the last PTS
265 * extracted by the PES parser.
266 */
267#define VIDEO_GET_PTS _IOR('o', 57, __u64)
268
269/* Read the number of displayed frames since the decoder was started */
270#define VIDEO_GET_FRAME_COUNT _IOR('o', 58, __u64)
271
272#define VIDEO_COMMAND _IOWR('o', 59, struct video_command)
273#define VIDEO_TRY_COMMAND _IOWR('o', 60, struct video_command)
274
275#endif /* _UAPI_DVBVIDEO_H_ */