1 /* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
5 * Copyright (C) 2000 Marcus Metzler <marcus@convergence.de>
6 * & Ralph Metzler <ralph@convergence.de>
7 * for convergence integrated media GmbH
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public License
11 * as published by the Free Software Foundation; either version 2.1
12 * of the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
28 #include <linux/types.h>
32 VIDEO_FORMAT_4_3, /* Select 4:3 format */
33 VIDEO_FORMAT_16_9, /* Select 16:9 format. */
34 VIDEO_FORMAT_221_1 /* 2.21:1 */
39 VIDEO_PAN_SCAN, /* use pan and scan format */
40 VIDEO_LETTER_BOX, /* use letterbox format */
41 VIDEO_CENTER_CUT_OUT /* use center cut out format */
42 } video_displayformat_t;
47 video_format_t aspect_ratio;
51 VIDEO_SOURCE_DEMUX, /* Select the demux as the main source */
52 VIDEO_SOURCE_MEMORY /* If this source is selected, the stream
53 comes from the user through the write
55 } video_stream_source_t;
59 VIDEO_STOPPED, /* Video is stopped */
60 VIDEO_PLAYING, /* Video is currently playing */
61 VIDEO_FREEZED /* Video is freezed */
65 /* Decoder commands */
66 #define VIDEO_CMD_PLAY (0)
67 #define VIDEO_CMD_STOP (1)
68 #define VIDEO_CMD_FREEZE (2)
69 #define VIDEO_CMD_CONTINUE (3)
71 /* Flags for VIDEO_CMD_FREEZE */
72 #define VIDEO_CMD_FREEZE_TO_BLACK (1 << 0)
74 /* Flags for VIDEO_CMD_STOP */
75 #define VIDEO_CMD_STOP_TO_BLACK (1 << 0)
76 #define VIDEO_CMD_STOP_IMMEDIATELY (1 << 1)
78 /* Play input formats: */
79 /* The decoder has no special format requirements */
80 #define VIDEO_PLAY_FMT_NONE (0)
81 /* The decoder requires full GOPs */
82 #define VIDEO_PLAY_FMT_GOP (1)
84 /* The structure must be zeroed before use by the application
85 This ensures it can be extended safely in the future. */
86 struct video_command {
95 /* 0 or 1000 specifies normal speed,
96 1 specifies forward single stepping,
97 -1 specifies backward single stepping,
98 >1: playback at speed/1000 of the normal speed,
99 <-1: reverse playback at (-speed/1000) of the normal speed. */
110 /* FIELD_UNKNOWN can be used if the hardware does not know whether
111 the Vsync is for an odd, even or progressive (i.e. non-interlaced)
113 #define VIDEO_VSYNC_FIELD_UNKNOWN (0)
114 #define VIDEO_VSYNC_FIELD_ODD (1)
115 #define VIDEO_VSYNC_FIELD_EVEN (2)
116 #define VIDEO_VSYNC_FIELD_PROGRESSIVE (3)
120 #define VIDEO_EVENT_SIZE_CHANGED 1
121 #define VIDEO_EVENT_FRAME_RATE_CHANGED 2
122 #define VIDEO_EVENT_DECODER_STOPPED 3
123 #define VIDEO_EVENT_VSYNC 4
124 /* unused, make sure to use atomic time for y2038 if it ever gets used */
128 unsigned int frame_rate; /* in frames per 1000sec */
129 unsigned char vsync_field; /* unknown/odd/even/progressive */
134 struct video_status {
135 int video_blank; /* blank video on freeze? */
136 video_play_state_t play_state; /* current state of playback */
137 video_stream_source_t stream_source; /* current source (demux/memory) */
138 video_format_t video_format; /* current aspect ratio of stream*/
139 video_displayformat_t display_format;/* selected cropping mode */
143 struct video_still_picture {
144 char *iFrame; /* pointer to a single iframe in memory */
149 typedef __u16 video_attributes_t;
151 /* 15-14 Video compression mode (0=MPEG-1, 1=MPEG-2) */
152 /* 13-12 TV system (0=525/60, 1=625/50) */
153 /* 11-10 Aspect ratio (0=4:3, 3=16:9) */
154 /* 9- 8 permitted display mode on 4:3 monitor (0=both, 1=only pan-sca */
155 /* 7 line 21-1 data present in GOP (1=yes, 0=no) */
156 /* 6 line 21-2 data present in GOP (1=yes, 0=no) */
157 /* 5- 3 source resolution (0=720x480/576, 1=704x480/576, 2=352x480/57 */
158 /* 2 source letterboxed (1=yes, 0=no) */
159 /* 0 film/camera mode (0=
160 *camera, 1=film (625/50 only)) */
163 /* bit definitions for capabilities: */
164 /* can the hardware decode MPEG1 and/or MPEG2? */
165 #define VIDEO_CAP_MPEG1 1
166 #define VIDEO_CAP_MPEG2 2
167 /* can you send a system and/or program stream to video device?
168 (you still have to open the video and the audio device but only
169 send the stream to the video device) */
170 #define VIDEO_CAP_SYS 4
171 #define VIDEO_CAP_PROG 8
172 /* can the driver also handle SPU, NAVI and CSS encoded data?
173 (CSS API is not present yet) */
174 #define VIDEO_CAP_SPU 16
175 #define VIDEO_CAP_NAVI 32
176 #define VIDEO_CAP_CSS 64
179 #define VIDEO_STOP _IO('o', 21)
180 #define VIDEO_PLAY _IO('o', 22)
181 #define VIDEO_FREEZE _IO('o', 23)
182 #define VIDEO_CONTINUE _IO('o', 24)
183 #define VIDEO_SELECT_SOURCE _IO('o', 25)
184 #define VIDEO_SET_BLANK _IO('o', 26)
185 #define VIDEO_GET_STATUS _IOR('o', 27, struct video_status)
186 #define VIDEO_GET_EVENT _IOR('o', 28, struct video_event)
187 #define VIDEO_SET_DISPLAY_FORMAT _IO('o', 29)
188 #define VIDEO_STILLPICTURE _IOW('o', 30, struct video_still_picture)
189 #define VIDEO_FAST_FORWARD _IO('o', 31)
190 #define VIDEO_SLOWMOTION _IO('o', 32)
191 #define VIDEO_GET_CAPABILITIES _IOR('o', 33, unsigned int)
192 #define VIDEO_CLEAR_BUFFER _IO('o', 34)
193 #define VIDEO_SET_STREAMTYPE _IO('o', 36)
194 #define VIDEO_SET_FORMAT _IO('o', 37)
195 #define VIDEO_GET_SIZE _IOR('o', 55, video_size_t)
200 * Read the 33 bit presentation time stamp as defined
201 * in ITU T-REC-H.222.0 / ISO/IEC 13818-1.
203 * The PTS should belong to the currently played
204 * frame if possible, but may also be a value close to it
205 * like the PTS of the last decoded frame or the last PTS
206 * extracted by the PES parser.
208 #define VIDEO_GET_PTS _IOR('o', 57, __u64)
210 /* Read the number of displayed frames since the decoder was started */
211 #define VIDEO_GET_FRAME_COUNT _IOR('o', 58, __u64)
213 #define VIDEO_COMMAND _IOWR('o', 59, struct video_command)
214 #define VIDEO_TRY_COMMAND _IOWR('o', 60, struct video_command)
216 #endif /* _DVBVIDEO_H_ */