1 | /* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */ |
2 | /* |
3 | * video.h - DEPRECATED MPEG-TS video decoder API |
4 | * |
5 | * NOTE: should not be used on future drivers |
6 | * |
7 | * Copyright (C) 2000 Marcus Metzler <marcus@convergence.de> |
8 | * & Ralph Metzler <ralph@convergence.de> |
9 | * for convergence integrated media GmbH |
10 | */ |
11 | |
12 | #ifndef _UAPI_DVBVIDEO_H_ |
13 | #define _UAPI_DVBVIDEO_H_ |
14 | |
15 | #include <linux/types.h> |
16 | #ifndef __KERNEL__ |
17 | #include <time.h> |
18 | #endif |
19 | |
20 | typedef enum { |
21 | VIDEO_FORMAT_4_3, /* Select 4:3 format */ |
22 | VIDEO_FORMAT_16_9, /* Select 16:9 format. */ |
23 | VIDEO_FORMAT_221_1 /* 2.21:1 */ |
24 | } video_format_t; |
25 | |
26 | |
27 | typedef enum { |
28 | VIDEO_PAN_SCAN, /* use pan and scan format */ |
29 | VIDEO_LETTER_BOX, /* use letterbox format */ |
30 | VIDEO_CENTER_CUT_OUT /* use center cut out format */ |
31 | } video_displayformat_t; |
32 | |
33 | typedef struct { |
34 | int w; |
35 | int h; |
36 | video_format_t aspect_ratio; |
37 | } video_size_t; |
38 | |
39 | typedef enum { |
40 | VIDEO_SOURCE_DEMUX, /* Select the demux as the main source */ |
41 | VIDEO_SOURCE_MEMORY /* If this source is selected, the stream |
42 | comes from the user through the write |
43 | system call */ |
44 | } video_stream_source_t; |
45 | |
46 | |
47 | typedef enum { |
48 | VIDEO_STOPPED, /* Video is stopped */ |
49 | VIDEO_PLAYING, /* Video is currently playing */ |
50 | VIDEO_FREEZED /* Video is freezed */ |
51 | } video_play_state_t; |
52 | |
53 | |
54 | /* Decoder commands */ |
55 | #define VIDEO_CMD_PLAY (0) |
56 | #define VIDEO_CMD_STOP (1) |
57 | #define VIDEO_CMD_FREEZE (2) |
58 | #define VIDEO_CMD_CONTINUE (3) |
59 | |
60 | /* Flags for VIDEO_CMD_FREEZE */ |
61 | #define VIDEO_CMD_FREEZE_TO_BLACK (1 << 0) |
62 | |
63 | /* Flags for VIDEO_CMD_STOP */ |
64 | #define VIDEO_CMD_STOP_TO_BLACK (1 << 0) |
65 | #define VIDEO_CMD_STOP_IMMEDIATELY (1 << 1) |
66 | |
67 | /* Play input formats: */ |
68 | /* The decoder has no special format requirements */ |
69 | #define VIDEO_PLAY_FMT_NONE (0) |
70 | /* The decoder requires full GOPs */ |
71 | #define VIDEO_PLAY_FMT_GOP (1) |
72 | |
73 | /* The structure must be zeroed before use by the application |
74 | This ensures it can be extended safely in the future. */ |
75 | struct video_command { |
76 | __u32 cmd; |
77 | __u32 flags; |
78 | union { |
79 | struct { |
80 | __u64 pts; |
81 | } stop; |
82 | |
83 | struct { |
84 | /* 0 or 1000 specifies normal speed, |
85 | 1 specifies forward single stepping, |
86 | -1 specifies backward single stepping, |
87 | >1: playback at speed/1000 of the normal speed, |
88 | <-1: reverse playback at (-speed/1000) of the normal speed. */ |
89 | __s32 speed; |
90 | __u32 format; |
91 | } play; |
92 | |
93 | struct { |
94 | __u32 data[16]; |
95 | } raw; |
96 | }; |
97 | }; |
98 | |
99 | /* FIELD_UNKNOWN can be used if the hardware does not know whether |
100 | the Vsync is for an odd, even or progressive (i.e. non-interlaced) |
101 | field. */ |
102 | #define VIDEO_VSYNC_FIELD_UNKNOWN (0) |
103 | #define VIDEO_VSYNC_FIELD_ODD (1) |
104 | #define VIDEO_VSYNC_FIELD_EVEN (2) |
105 | #define VIDEO_VSYNC_FIELD_PROGRESSIVE (3) |
106 | |
107 | struct video_event { |
108 | __s32 type; |
109 | #define VIDEO_EVENT_SIZE_CHANGED 1 |
110 | #define VIDEO_EVENT_FRAME_RATE_CHANGED 2 |
111 | #define VIDEO_EVENT_DECODER_STOPPED 3 |
112 | #define VIDEO_EVENT_VSYNC 4 |
113 | /* unused, make sure to use atomic time for y2038 if it ever gets used */ |
114 | long timestamp; |
115 | union { |
116 | video_size_t size; |
117 | unsigned int frame_rate; /* in frames per 1000sec */ |
118 | unsigned char vsync_field; /* unknown/odd/even/progressive */ |
119 | } u; |
120 | }; |
121 | |
122 | |
123 | struct video_status { |
124 | int video_blank; /* blank video on freeze? */ |
125 | video_play_state_t play_state; /* current state of playback */ |
126 | video_stream_source_t stream_source; /* current source (demux/memory) */ |
127 | video_format_t video_format; /* current aspect ratio of stream*/ |
128 | video_displayformat_t display_format;/* selected cropping mode */ |
129 | }; |
130 | |
131 | |
132 | struct video_still_picture { |
133 | char __user *iFrame; /* pointer to a single iframe in memory */ |
134 | __s32 size; |
135 | }; |
136 | |
137 | |
138 | typedef __u16 video_attributes_t; |
139 | /* bits: descr. */ |
140 | /* 15-14 Video compression mode (0=MPEG-1, 1=MPEG-2) */ |
141 | /* 13-12 TV system (0=525/60, 1=625/50) */ |
142 | /* 11-10 Aspect ratio (0=4:3, 3=16:9) */ |
143 | /* 9- 8 permitted display mode on 4:3 monitor (0=both, 1=only pan-sca */ |
144 | /* 7 line 21-1 data present in GOP (1=yes, 0=no) */ |
145 | /* 6 line 21-2 data present in GOP (1=yes, 0=no) */ |
146 | /* 5- 3 source resolution (0=720x480/576, 1=704x480/576, 2=352x480/57 */ |
147 | /* 2 source letterboxed (1=yes, 0=no) */ |
148 | /* 0 film/camera mode (0= |
149 | *camera, 1=film (625/50 only)) */ |
150 | |
151 | |
152 | /* bit definitions for capabilities: */ |
153 | /* can the hardware decode MPEG1 and/or MPEG2? */ |
154 | #define VIDEO_CAP_MPEG1 1 |
155 | #define VIDEO_CAP_MPEG2 2 |
156 | /* can you send a system and/or program stream to video device? |
157 | (you still have to open the video and the audio device but only |
158 | send the stream to the video device) */ |
159 | #define VIDEO_CAP_SYS 4 |
160 | #define VIDEO_CAP_PROG 8 |
161 | /* can the driver also handle SPU, NAVI and CSS encoded data? |
162 | (CSS API is not present yet) */ |
163 | #define VIDEO_CAP_SPU 16 |
164 | #define VIDEO_CAP_NAVI 32 |
165 | #define VIDEO_CAP_CSS 64 |
166 | |
167 | |
168 | #define VIDEO_STOP _IO('o', 21) |
169 | #define VIDEO_PLAY _IO('o', 22) |
170 | #define VIDEO_FREEZE _IO('o', 23) |
171 | #define VIDEO_CONTINUE _IO('o', 24) |
172 | #define VIDEO_SELECT_SOURCE _IO('o', 25) |
173 | #define VIDEO_SET_BLANK _IO('o', 26) |
174 | #define VIDEO_GET_STATUS _IOR('o', 27, struct video_status) |
175 | #define VIDEO_GET_EVENT _IOR('o', 28, struct video_event) |
176 | #define VIDEO_SET_DISPLAY_FORMAT _IO('o', 29) |
177 | #define VIDEO_STILLPICTURE _IOW('o', 30, struct video_still_picture) |
178 | #define VIDEO_FAST_FORWARD _IO('o', 31) |
179 | #define VIDEO_SLOWMOTION _IO('o', 32) |
180 | #define VIDEO_GET_CAPABILITIES _IOR('o', 33, unsigned int) |
181 | #define VIDEO_CLEAR_BUFFER _IO('o', 34) |
182 | #define VIDEO_SET_STREAMTYPE _IO('o', 36) |
183 | #define VIDEO_SET_FORMAT _IO('o', 37) |
184 | #define VIDEO_GET_SIZE _IOR('o', 55, video_size_t) |
185 | |
186 | /** |
187 | * VIDEO_GET_PTS |
188 | * |
189 | * Read the 33 bit presentation time stamp as defined |
190 | * in ITU T-REC-H.222.0 / ISO/IEC 13818-1. |
191 | * |
192 | * The PTS should belong to the currently played |
193 | * frame if possible, but may also be a value close to it |
194 | * like the PTS of the last decoded frame or the last PTS |
195 | * extracted by the PES parser. |
196 | */ |
197 | #define VIDEO_GET_PTS _IOR('o', 57, __u64) |
198 | |
199 | /* Read the number of displayed frames since the decoder was started */ |
200 | #define VIDEO_GET_FRAME_COUNT _IOR('o', 58, __u64) |
201 | |
202 | #define VIDEO_COMMAND _IOWR('o', 59, struct video_command) |
203 | #define VIDEO_TRY_COMMAND _IOWR('o', 60, struct video_command) |
204 | |
205 | #endif /* _UAPI_DVBVIDEO_H_ */ |
206 | |