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/types.h>
28#ifdef __KERNEL__
29#include <linux/compiler.h>
30#else
31#include <stdint.h>
32#include <time.h>
33#endif
34
35typedef enum {
36 VIDEO_FORMAT_4_3, /* Select 4:3 format */
37 VIDEO_FORMAT_16_9, /* Select 16:9 format. */
38 VIDEO_FORMAT_221_1 /* 2.21:1 */
39} video_format_t;
40
41
42typedef enum {
43 VIDEO_SYSTEM_PAL,
44 VIDEO_SYSTEM_NTSC,
45 VIDEO_SYSTEM_PALN,
46 VIDEO_SYSTEM_PALNc,
47 VIDEO_SYSTEM_PALM,
48 VIDEO_SYSTEM_NTSC60,
49 VIDEO_SYSTEM_PAL60,
50 VIDEO_SYSTEM_PALM60
51} video_system_t;
52
53
54typedef enum {
55 VIDEO_PAN_SCAN, /* use pan and scan format */
56 VIDEO_LETTER_BOX, /* use letterbox format */
57 VIDEO_CENTER_CUT_OUT /* use center cut out format */
58} video_displayformat_t;
59
60typedef struct {
61 int w;
62 int h;
63 video_format_t aspect_ratio;
64} video_size_t;
65
66typedef enum {
67 VIDEO_SOURCE_DEMUX, /* Select the demux as the main source */
68 VIDEO_SOURCE_MEMORY /* If this source is selected, the stream
69 comes from the user through the write
70 system call */
71} video_stream_source_t;
72
73
74typedef enum {
75 VIDEO_STOPPED, /* Video is stopped */
76 VIDEO_PLAYING, /* Video is currently playing */
77 VIDEO_FREEZED /* Video is freezed */
78} video_play_state_t;
79
80
81/* Decoder commands */
82#define VIDEO_CMD_PLAY (0)
83#define VIDEO_CMD_STOP (1)
84#define VIDEO_CMD_FREEZE (2)
85#define VIDEO_CMD_CONTINUE (3)
86
87/* Flags for VIDEO_CMD_FREEZE */
88#define VIDEO_CMD_FREEZE_TO_BLACK (1 << 0)
89
90/* Flags for VIDEO_CMD_STOP */
91#define VIDEO_CMD_STOP_TO_BLACK (1 << 0)
92#define VIDEO_CMD_STOP_IMMEDIATELY (1 << 1)
93
94/* Play input formats: */
95/* The decoder has no special format requirements */
96#define VIDEO_PLAY_FMT_NONE (0)
97/* The decoder requires full GOPs */
98#define VIDEO_PLAY_FMT_GOP (1)
99
100/* The structure must be zeroed before use by the application
101 This ensures it can be extended safely in the future. */
102struct video_command {
103 __u32 cmd;
104 __u32 flags;
105 union {
106 struct {
107 __u64 pts;
108 } stop;
109
110 struct {
111 /* 0 or 1000 specifies normal speed,
112 1 specifies forward single stepping,
113 -1 specifies backward single stepping,
114 >1: playback at speed/1000 of the normal speed,
115 <-1: reverse playback at (-speed/1000) of the normal speed. */
116 __s32 speed;
117 __u32 format;
118 } play;
119
120 struct {
121 __u32 data[16];
122 } raw;
123 };
124};
125
126/* FIELD_UNKNOWN can be used if the hardware does not know whether
127 the Vsync is for an odd, even or progressive (i.e. non-interlaced)
128 field. */
129#define VIDEO_VSYNC_FIELD_UNKNOWN (0)
130#define VIDEO_VSYNC_FIELD_ODD (1)
131#define VIDEO_VSYNC_FIELD_EVEN (2)
132#define VIDEO_VSYNC_FIELD_PROGRESSIVE (3)
133
134struct video_event {
135 __s32 type;
136#define VIDEO_EVENT_SIZE_CHANGED 1
137#define VIDEO_EVENT_FRAME_RATE_CHANGED 2
138#define VIDEO_EVENT_DECODER_STOPPED 3
139#define VIDEO_EVENT_VSYNC 4
140 __kernel_time_t timestamp;
141 union {
142 video_size_t size;
143 unsigned int frame_rate; /* in frames per 1000sec */
144 unsigned char vsync_field; /* unknown/odd/even/progressive */
145 } u;
146};
147
148
149struct video_status {
150 int video_blank; /* blank video on freeze? */
151 video_play_state_t play_state; /* current state of playback */
152 video_stream_source_t stream_source; /* current source (demux/memory) */
153 video_format_t video_format; /* current aspect ratio of stream*/
154 video_displayformat_t display_format;/* selected cropping mode */
155};
156
157
158struct video_still_picture {
159 char __user *iFrame; /* pointer to a single iframe in memory */
160 __s32 size;
161};
162
163
164typedef
165struct video_highlight {
166 int active; /* 1=show highlight, 0=hide highlight */
167 __u8 contrast1; /* 7- 4 Pattern pixel contrast */
168 /* 3- 0 Background pixel contrast */
169 __u8 contrast2; /* 7- 4 Emphasis pixel-2 contrast */
170 /* 3- 0 Emphasis pixel-1 contrast */
171 __u8 color1; /* 7- 4 Pattern pixel color */
172 /* 3- 0 Background pixel color */
173 __u8 color2; /* 7- 4 Emphasis pixel-2 color */
174 /* 3- 0 Emphasis pixel-1 color */
175 __u32 ypos; /* 23-22 auto action mode */
176 /* 21-12 start y */
177 /* 9- 0 end y */
178 __u32 xpos; /* 23-22 button color number */
179 /* 21-12 start x */
180 /* 9- 0 end x */
181} video_highlight_t;
182
183
184typedef struct video_spu {
185 int active;
186 int stream_id;
187} video_spu_t;
188
189
190typedef struct video_spu_palette { /* SPU Palette information */
191 int length;
192 __u8 __user *palette;
193} video_spu_palette_t;
194
195
196typedef struct video_navi_pack {
197 int length; /* 0 ... 1024 */
198 __u8 data[1024];
199} video_navi_pack_t;
200
201
202typedef __u16 video_attributes_t;
203/* bits: descr. */
204/* 15-14 Video compression mode (0=MPEG-1, 1=MPEG-2) */
205/* 13-12 TV system (0=525/60, 1=625/50) */
206/* 11-10 Aspect ratio (0=4:3, 3=16:9) */
207/* 9- 8 permitted display mode on 4:3 monitor (0=both, 1=only pan-sca */
208/* 7 line 21-1 data present in GOP (1=yes, 0=no) */
209/* 6 line 21-2 data present in GOP (1=yes, 0=no) */
210/* 5- 3 source resolution (0=720x480/576, 1=704x480/576, 2=352x480/57 */
211/* 2 source letterboxed (1=yes, 0=no) */
212/* 0 film/camera mode (0=camera, 1=film (625/50 only)) */
213
214
215/* bit definitions for capabilities: */
216/* can the hardware decode MPEG1 and/or MPEG2? */
217#define VIDEO_CAP_MPEG1 1
218#define VIDEO_CAP_MPEG2 2
219/* can you send a system and/or program stream to video device?
220 (you still have to open the video and the audio device but only
221 send the stream to the video device) */
222#define VIDEO_CAP_SYS 4
223#define VIDEO_CAP_PROG 8
224/* can the driver also handle SPU, NAVI and CSS encoded data?
225 (CSS API is not present yet) */
226#define VIDEO_CAP_SPU 16
227#define VIDEO_CAP_NAVI 32
228#define VIDEO_CAP_CSS 64
229
230
231#define VIDEO_STOP _IO('o', 21)
232#define VIDEO_PLAY _IO('o', 22)
233#define VIDEO_FREEZE _IO('o', 23)
234#define VIDEO_CONTINUE _IO('o', 24)
235#define VIDEO_SELECT_SOURCE _IO('o', 25)
236#define VIDEO_SET_BLANK _IO('o', 26)
237#define VIDEO_GET_STATUS _IOR('o', 27, struct video_status)
238#define VIDEO_GET_EVENT _IOR('o', 28, struct video_event)
239#define VIDEO_SET_DISPLAY_FORMAT _IO('o', 29)
240#define VIDEO_STILLPICTURE _IOW('o', 30, struct video_still_picture)
241#define VIDEO_FAST_FORWARD _IO('o', 31)
242#define VIDEO_SLOWMOTION _IO('o', 32)
243#define VIDEO_GET_CAPABILITIES _IOR('o', 33, unsigned int)
244#define VIDEO_CLEAR_BUFFER _IO('o', 34)
245#define VIDEO_SET_ID _IO('o', 35)
246#define VIDEO_SET_STREAMTYPE _IO('o', 36)
247#define VIDEO_SET_FORMAT _IO('o', 37)
248#define VIDEO_SET_SYSTEM _IO('o', 38)
249#define VIDEO_SET_HIGHLIGHT _IOW('o', 39, video_highlight_t)
250#define VIDEO_SET_SPU _IOW('o', 50, video_spu_t)
251#define VIDEO_SET_SPU_PALETTE _IOW('o', 51, video_spu_palette_t)
252#define VIDEO_GET_NAVI _IOR('o', 52, video_navi_pack_t)
253#define VIDEO_SET_ATTRIBUTES _IO('o', 53)
254#define VIDEO_GET_SIZE _IOR('o', 55, video_size_t)
255#define VIDEO_GET_FRAME_RATE _IOR('o', 56, unsigned int)
256
257/**
258 * VIDEO_GET_PTS
259 *
260 * Read the 33 bit presentation time stamp as defined
261 * in ITU T-REC-H.222.0 / ISO/IEC 13818-1.
262 *
263 * The PTS should belong to the currently played
264 * frame if possible, but may also be a value close to it
265 * like the PTS of the last decoded frame or the last PTS
266 * extracted by the PES parser.
267 */
268#define VIDEO_GET_PTS _IOR('o', 57, __u64)
269
270/* Read the number of displayed frames since the decoder was started */
271#define VIDEO_GET_FRAME_COUNT _IOR('o', 58, __u64)
272
273#define VIDEO_COMMAND _IOWR('o', 59, struct video_command)
274#define VIDEO_TRY_COMMAND _IOWR('o', 60, struct video_command)
275
276#endif /*_DVBVIDEO_H_*/