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video.h
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1 /*
2  * video.h
3  *
4  * Copyright (C) 2000 Marcus Metzler <[email protected]>
5  * & Ralph Metzler <[email protected]>
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 
33 typedef 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 
40 typedef 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 
52 typedef 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 
58 typedef struct {
59  int w;
60  int h;
61  video_format_t aspect_ratio;
62 } video_size_t;
63 
64 typedef 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 
72 typedef 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. */
100 struct 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 
132 struct 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 
147 struct 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 
156 struct video_still_picture {
157  char __user *iFrame; /* pointer to a single iframe in memory */
158  __s32 size;
159 };
160 
161 
162 typedef
163 struct 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 
182 typedef struct video_spu {
183  int active;
184  int stream_id;
185 } video_spu_t;
186 
187 
188 typedef struct video_spu_palette { /* SPU Palette information */
189  int length;
190  __u8 __user *palette;
191 } video_spu_palette_t;
192 
193 
194 typedef struct video_navi_pack {
195  int length; /* 0 ... 1024 */
196  __u8 data[1024];
197 } video_navi_pack_t;
198 
199 
200 typedef __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 
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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