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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  
32  typedef 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  
39  typedef 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  
51  typedef 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  
57  typedef struct {
58  	int w;
59  	int h;
60  	video_format_t aspect_ratio;
61  } video_size_t;
62  
63  typedef 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  
71  typedef 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. */
99  struct 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  
131  struct 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  	__kernel_time_t timestamp;
138  	union {
139  		video_size_t size;
140  		unsigned int frame_rate;	/* in frames per 1000sec */
141  		unsigned char vsync_field;	/* unknown/odd/even/progressive */
142  	} u;
143  };
144  
145  
146  struct video_status {
147  	int                   video_blank;   /* blank video on freeze? */
148  	video_play_state_t    play_state;    /* current state of playback */
149  	video_stream_source_t stream_source; /* current source (demux/memory) */
150  	video_format_t        video_format;  /* current aspect ratio of stream*/
151  	video_displayformat_t display_format;/* selected cropping mode */
152  };
153  
154  
155  struct video_still_picture {
156  	char __user *iFrame;        /* pointer to a single iframe in memory */
157  	__s32 size;
158  };
159  
160  
161  typedef
162  struct video_highlight {
163  	int     active;      /*    1=show highlight, 0=hide highlight */
164  	__u8    contrast1;   /*    7- 4  Pattern pixel contrast */
165  			     /*    3- 0  Background pixel contrast */
166  	__u8    contrast2;   /*    7- 4  Emphasis pixel-2 contrast */
167  			     /*    3- 0  Emphasis pixel-1 contrast */
168  	__u8    color1;      /*    7- 4  Pattern pixel color */
169  			     /*    3- 0  Background pixel color */
170  	__u8    color2;      /*    7- 4  Emphasis pixel-2 color */
171  			     /*    3- 0  Emphasis pixel-1 color */
172  	__u32    ypos;       /*   23-22  auto action mode */
173  			     /*   21-12  start y */
174  			     /*    9- 0  end y */
175  	__u32    xpos;       /*   23-22  button color number */
176  			     /*   21-12  start x */
177  			     /*    9- 0  end x */
178  } video_highlight_t;
179  
180  
181  typedef struct video_spu {
182  	int active;
183  	int stream_id;
184  } video_spu_t;
185  
186  
187  typedef struct video_spu_palette {      /* SPU Palette information */
188  	int length;
189  	__u8 __user *palette;
190  } video_spu_palette_t;
191  
192  
193  typedef struct video_navi_pack {
194  	int length;          /* 0 ... 1024 */
195  	__u8 data[1024];
196  } video_navi_pack_t;
197  
198  
199  typedef __u16 video_attributes_t;
200  /*   bits: descr. */
201  /*   15-14 Video compression mode (0=MPEG-1, 1=MPEG-2) */
202  /*   13-12 TV system (0=525/60, 1=625/50) */
203  /*   11-10 Aspect ratio (0=4:3, 3=16:9) */
204  /*    9- 8 permitted display mode on 4:3 monitor (0=both, 1=only pan-sca */
205  /*    7    line 21-1 data present in GOP (1=yes, 0=no) */
206  /*    6    line 21-2 data present in GOP (1=yes, 0=no) */
207  /*    5- 3 source resolution (0=720x480/576, 1=704x480/576, 2=352x480/57 */
208  /*    2    source letterboxed (1=yes, 0=no) */
209  /*    0    film/camera mode (0=
210   *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_ */
275