Linux kernel mirror (for testing)
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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 _DVBVIDEO_H_
25#define _DVBVIDEO_H_
26
27#include <linux/compiler.h>
28
29#ifdef __KERNEL__
30#include <linux/types.h>
31#else
32#include <asm/types.h>
33#include <stdint.h>
34#include <time.h>
35#endif
36
37
38typedef enum {
39 VIDEO_FORMAT_4_3, /* Select 4:3 format */
40 VIDEO_FORMAT_16_9, /* Select 16:9 format. */
41 VIDEO_FORMAT_221_1 /* 2.21:1 */
42} video_format_t;
43
44
45typedef enum {
46 VIDEO_SYSTEM_PAL,
47 VIDEO_SYSTEM_NTSC,
48 VIDEO_SYSTEM_PALN,
49 VIDEO_SYSTEM_PALNc,
50 VIDEO_SYSTEM_PALM,
51 VIDEO_SYSTEM_NTSC60,
52 VIDEO_SYSTEM_PAL60,
53 VIDEO_SYSTEM_PALM60
54} video_system_t;
55
56
57typedef enum {
58 VIDEO_PAN_SCAN, /* use pan and scan format */
59 VIDEO_LETTER_BOX, /* use letterbox format */
60 VIDEO_CENTER_CUT_OUT /* use center cut out format */
61} video_displayformat_t;
62
63typedef struct {
64 int w;
65 int h;
66 video_format_t aspect_ratio;
67} video_size_t;
68
69typedef enum {
70 VIDEO_SOURCE_DEMUX, /* Select the demux as the main source */
71 VIDEO_SOURCE_MEMORY /* If this source is selected, the stream
72 comes from the user through the write
73 system call */
74} video_stream_source_t;
75
76
77typedef enum {
78 VIDEO_STOPPED, /* Video is stopped */
79 VIDEO_PLAYING, /* Video is currently playing */
80 VIDEO_FREEZED /* Video is freezed */
81} video_play_state_t;
82
83
84/* Decoder commands */
85#define VIDEO_CMD_PLAY (0)
86#define VIDEO_CMD_STOP (1)
87#define VIDEO_CMD_FREEZE (2)
88#define VIDEO_CMD_CONTINUE (3)
89
90/* Flags for VIDEO_CMD_FREEZE */
91#define VIDEO_CMD_FREEZE_TO_BLACK (1 << 0)
92
93/* Flags for VIDEO_CMD_STOP */
94#define VIDEO_CMD_STOP_TO_BLACK (1 << 0)
95#define VIDEO_CMD_STOP_IMMEDIATELY (1 << 1)
96
97/* Play input formats: */
98/* The decoder has no special format requirements */
99#define VIDEO_PLAY_FMT_NONE (0)
100/* The decoder requires full GOPs */
101#define VIDEO_PLAY_FMT_GOP (1)
102
103/* The structure must be zeroed before use by the application
104 This ensures it can be extended safely in the future. */
105struct video_command {
106 __u32 cmd;
107 __u32 flags;
108 union {
109 struct {
110 __u64 pts;
111 } stop;
112
113 struct {
114 /* 0 or 1000 specifies normal speed,
115 1 specifies forward single stepping,
116 -1 specifies backward single stepping,
117 >1: playback at speed/1000 of the normal speed,
118 <-1: reverse playback at (-speed/1000) of the normal speed. */
119 __s32 speed;
120 __u32 format;
121 } play;
122
123 struct {
124 __u32 data[16];
125 } raw;
126 };
127};
128
129/* FIELD_UNKNOWN can be used if the hardware does not know whether
130 the Vsync is for an odd, even or progressive (i.e. non-interlaced)
131 field. */
132#define VIDEO_VSYNC_FIELD_UNKNOWN (0)
133#define VIDEO_VSYNC_FIELD_ODD (1)
134#define VIDEO_VSYNC_FIELD_EVEN (2)
135#define VIDEO_VSYNC_FIELD_PROGRESSIVE (3)
136
137struct video_event {
138 int32_t type;
139#define VIDEO_EVENT_SIZE_CHANGED 1
140#define VIDEO_EVENT_FRAME_RATE_CHANGED 2
141#define VIDEO_EVENT_DECODER_STOPPED 3
142#define VIDEO_EVENT_VSYNC 4
143 time_t timestamp;
144 union {
145 video_size_t size;
146 unsigned int frame_rate; /* in frames per 1000sec */
147 unsigned char vsync_field; /* unknown/odd/even/progressive */
148 } u;
149};
150
151
152struct video_status {
153 int video_blank; /* blank video on freeze? */
154 video_play_state_t play_state; /* current state of playback */
155 video_stream_source_t stream_source; /* current source (demux/memory) */
156 video_format_t video_format; /* current aspect ratio of stream*/
157 video_displayformat_t display_format;/* selected cropping mode */
158};
159
160
161struct video_still_picture {
162 char __user *iFrame; /* pointer to a single iframe in memory */
163 int32_t size;
164};
165
166
167typedef
168struct video_highlight {
169 int active; /* 1=show highlight, 0=hide highlight */
170 uint8_t contrast1; /* 7- 4 Pattern pixel contrast */
171 /* 3- 0 Background pixel contrast */
172 uint8_t contrast2; /* 7- 4 Emphasis pixel-2 contrast */
173 /* 3- 0 Emphasis pixel-1 contrast */
174 uint8_t color1; /* 7- 4 Pattern pixel color */
175 /* 3- 0 Background pixel color */
176 uint8_t color2; /* 7- 4 Emphasis pixel-2 color */
177 /* 3- 0 Emphasis pixel-1 color */
178 uint32_t ypos; /* 23-22 auto action mode */
179 /* 21-12 start y */
180 /* 9- 0 end y */
181 uint32_t xpos; /* 23-22 button color number */
182 /* 21-12 start x */
183 /* 9- 0 end x */
184} video_highlight_t;
185
186
187typedef struct video_spu {
188 int active;
189 int stream_id;
190} video_spu_t;
191
192
193typedef struct video_spu_palette { /* SPU Palette information */
194 int length;
195 uint8_t __user *palette;
196} video_spu_palette_t;
197
198
199typedef struct video_navi_pack {
200 int length; /* 0 ... 1024 */
201 uint8_t data[1024];
202} video_navi_pack_t;
203
204
205typedef uint16_t video_attributes_t;
206/* bits: descr. */
207/* 15-14 Video compression mode (0=MPEG-1, 1=MPEG-2) */
208/* 13-12 TV system (0=525/60, 1=625/50) */
209/* 11-10 Aspect ratio (0=4:3, 3=16:9) */
210/* 9- 8 permitted display mode on 4:3 monitor (0=both, 1=only pan-sca */
211/* 7 line 21-1 data present in GOP (1=yes, 0=no) */
212/* 6 line 21-2 data present in GOP (1=yes, 0=no) */
213/* 5- 3 source resolution (0=720x480/576, 1=704x480/576, 2=352x480/57 */
214/* 2 source letterboxed (1=yes, 0=no) */
215/* 0 film/camera mode (0=camera, 1=film (625/50 only)) */
216
217
218/* bit definitions for capabilities: */
219/* can the hardware decode MPEG1 and/or MPEG2? */
220#define VIDEO_CAP_MPEG1 1
221#define VIDEO_CAP_MPEG2 2
222/* can you send a system and/or program stream to video device?
223 (you still have to open the video and the audio device but only
224 send the stream to the video device) */
225#define VIDEO_CAP_SYS 4
226#define VIDEO_CAP_PROG 8
227/* can the driver also handle SPU, NAVI and CSS encoded data?
228 (CSS API is not present yet) */
229#define VIDEO_CAP_SPU 16
230#define VIDEO_CAP_NAVI 32
231#define VIDEO_CAP_CSS 64
232
233
234#define VIDEO_STOP _IO('o', 21)
235#define VIDEO_PLAY _IO('o', 22)
236#define VIDEO_FREEZE _IO('o', 23)
237#define VIDEO_CONTINUE _IO('o', 24)
238#define VIDEO_SELECT_SOURCE _IO('o', 25)
239#define VIDEO_SET_BLANK _IO('o', 26)
240#define VIDEO_GET_STATUS _IOR('o', 27, struct video_status)
241#define VIDEO_GET_EVENT _IOR('o', 28, struct video_event)
242#define VIDEO_SET_DISPLAY_FORMAT _IO('o', 29)
243#define VIDEO_STILLPICTURE _IOW('o', 30, struct video_still_picture)
244#define VIDEO_FAST_FORWARD _IO('o', 31)
245#define VIDEO_SLOWMOTION _IO('o', 32)
246#define VIDEO_GET_CAPABILITIES _IOR('o', 33, unsigned int)
247#define VIDEO_CLEAR_BUFFER _IO('o', 34)
248#define VIDEO_SET_ID _IO('o', 35)
249#define VIDEO_SET_STREAMTYPE _IO('o', 36)
250#define VIDEO_SET_FORMAT _IO('o', 37)
251#define VIDEO_SET_SYSTEM _IO('o', 38)
252#define VIDEO_SET_HIGHLIGHT _IOW('o', 39, video_highlight_t)
253#define VIDEO_SET_SPU _IOW('o', 50, video_spu_t)
254#define VIDEO_SET_SPU_PALETTE _IOW('o', 51, video_spu_palette_t)
255#define VIDEO_GET_NAVI _IOR('o', 52, video_navi_pack_t)
256#define VIDEO_SET_ATTRIBUTES _IO('o', 53)
257#define VIDEO_GET_SIZE _IOR('o', 55, video_size_t)
258#define VIDEO_GET_FRAME_RATE _IOR('o', 56, unsigned int)
259
260/**
261 * VIDEO_GET_PTS
262 *
263 * Read the 33 bit presentation time stamp as defined
264 * in ITU T-REC-H.222.0 / ISO/IEC 13818-1.
265 *
266 * The PTS should belong to the currently played
267 * frame if possible, but may also be a value close to it
268 * like the PTS of the last decoded frame or the last PTS
269 * extracted by the PES parser.
270 */
271#define VIDEO_GET_PTS _IOR('o', 57, __u64)
272
273/* Read the number of displayed frames since the decoder was started */
274#define VIDEO_GET_FRAME_COUNT _IOR('o', 58, __u64)
275
276#define VIDEO_COMMAND _IOWR('o', 59, struct video_command)
277#define VIDEO_TRY_COMMAND _IOWR('o', 60, struct video_command)
278
279#endif /*_DVBVIDEO_H_*/