1 /* 2 * video.h 3 * 4 * Copyright (C) 2000 Marcus Metzler <marcus (at) convergence.de> 5 * & Ralph Metzler <ralph (at) 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 #include <stdint.h> 29 #include <time.h> 30 31 typedef enum { 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 */ 35 } video_format_t; 36 37 38 typedef enum { 39 VIDEO_SYSTEM_PAL, 40 VIDEO_SYSTEM_NTSC, 41 VIDEO_SYSTEM_PALN, 42 VIDEO_SYSTEM_PALNc, 43 VIDEO_SYSTEM_PALM, 44 VIDEO_SYSTEM_NTSC60, 45 VIDEO_SYSTEM_PAL60, 46 VIDEO_SYSTEM_PALM60 47 } video_system_t; 48 49 50 typedef enum { 51 VIDEO_PAN_SCAN, /* use pan and scan format */ 52 VIDEO_LETTER_BOX, /* use letterbox format */ 53 VIDEO_CENTER_CUT_OUT /* use center cut out format */ 54 } video_displayformat_t; 55 56 typedef struct { 57 int w; 58 int h; 59 video_format_t aspect_ratio; 60 } video_size_t; 61 62 typedef enum { 63 VIDEO_SOURCE_DEMUX, /* Select the demux as the main source */ 64 VIDEO_SOURCE_MEMORY /* If this source is selected, the stream 65 comes from the user through the write 66 system call */ 67 } video_stream_source_t; 68 69 70 typedef enum { 71 VIDEO_STOPPED, /* Video is stopped */ 72 VIDEO_PLAYING, /* Video is currently playing */ 73 VIDEO_FREEZED /* Video is freezed */ 74 } video_play_state_t; 75 76 77 /* Decoder commands */ 78 #define VIDEO_CMD_PLAY (0) 79 #define VIDEO_CMD_STOP (1) 80 #define VIDEO_CMD_FREEZE (2) 81 #define VIDEO_CMD_CONTINUE (3) 82 83 /* Flags for VIDEO_CMD_FREEZE */ 84 #define VIDEO_CMD_FREEZE_TO_BLACK (1 << 0) 85 86 /* Flags for VIDEO_CMD_STOP */ 87 #define VIDEO_CMD_STOP_TO_BLACK (1 << 0) 88 #define VIDEO_CMD_STOP_IMMEDIATELY (1 << 1) 89 90 /* Play input formats: */ 91 /* The decoder has no special format requirements */ 92 #define VIDEO_PLAY_FMT_NONE (0) 93 /* The decoder requires full GOPs */ 94 #define VIDEO_PLAY_FMT_GOP (1) 95 96 /* The structure must be zeroed before use by the application 97 This ensures it can be extended safely in the future. */ 98 struct video_command { 99 __u32 cmd; 100 __u32 flags; 101 union { 102 struct { 103 __u64 pts; 104 } stop; 105 106 struct { 107 /* 0 or 1000 specifies normal speed, 108 1 specifies forward single stepping, 109 -1 specifies backward single stepping, 110 >1: playback at speed/1000 of the normal speed, 111 <-1: reverse playback at (-speed/1000) of the normal speed. */ 112 __s32 speed; 113 __u32 format; 114 } play; 115 116 struct { 117 __u32 data[16]; 118 } raw; 119 }; 120 }; 121 122 /* FIELD_UNKNOWN can be used if the hardware does not know whether 123 the Vsync is for an odd, even or progressive (i.e. non-interlaced) 124 field. */ 125 #define VIDEO_VSYNC_FIELD_UNKNOWN (0) 126 #define VIDEO_VSYNC_FIELD_ODD (1) 127 #define VIDEO_VSYNC_FIELD_EVEN (2) 128 #define VIDEO_VSYNC_FIELD_PROGRESSIVE (3) 129 130 struct video_event { 131 __s32 type; 132 #define VIDEO_EVENT_SIZE_CHANGED 1 133 #define VIDEO_EVENT_FRAME_RATE_CHANGED 2 134 #define VIDEO_EVENT_DECODER_STOPPED 3 135 #define VIDEO_EVENT_VSYNC 4 136 __kernel_time_t timestamp; 137 union { 138 video_size_t size; 139 unsigned int frame_rate; /* in frames per 1000sec */ 140 unsigned char vsync_field; /* unknown/odd/even/progressive */ 141 } u; 142 }; 143 144 145 struct video_status { 146 int video_blank; /* blank video on freeze? */ 147 video_play_state_t play_state; /* current state of playback */ 148 video_stream_source_t stream_source; /* current source (demux/memory) */ 149 video_format_t video_format; /* current aspect ratio of stream*/ 150 video_displayformat_t display_format;/* selected cropping mode */ 151 }; 152 153 154 struct video_still_picture { 155 char *iFrame; /* pointer to a single iframe in memory */ 156 __s32 size; 157 }; 158 159 160 typedef 161 struct video_highlight { 162 int active; /* 1=show highlight, 0=hide highlight */ 163 __u8 contrast1; /* 7- 4 Pattern pixel contrast */ 164 /* 3- 0 Background pixel contrast */ 165 __u8 contrast2; /* 7- 4 Emphasis pixel-2 contrast */ 166 /* 3- 0 Emphasis pixel-1 contrast */ 167 __u8 color1; /* 7- 4 Pattern pixel color */ 168 /* 3- 0 Background pixel color */ 169 __u8 color2; /* 7- 4 Emphasis pixel-2 color */ 170 /* 3- 0 Emphasis pixel-1 color */ 171 __u32 ypos; /* 23-22 auto action mode */ 172 /* 21-12 start y */ 173 /* 9- 0 end y */ 174 __u32 xpos; /* 23-22 button color number */ 175 /* 21-12 start x */ 176 /* 9- 0 end x */ 177 } video_highlight_t; 178 179 180 typedef struct video_spu { 181 int active; 182 int stream_id; 183 } video_spu_t; 184 185 186 typedef struct video_spu_palette { /* SPU Palette information */ 187 int length; 188 __u8 *palette; 189 } video_spu_palette_t; 190 191 192 typedef struct video_navi_pack { 193 int length; /* 0 ... 1024 */ 194 __u8 data[1024]; 195 } video_navi_pack_t; 196 197 198 typedef __u16 video_attributes_t; 199 /* bits: descr. */ 200 /* 15-14 Video compression mode (0=MPEG-1, 1=MPEG-2) */ 201 /* 13-12 TV system (0=525/60, 1=625/50) */ 202 /* 11-10 Aspect ratio (0=4:3, 3=16:9) */ 203 /* 9- 8 permitted display mode on 4:3 monitor (0=both, 1=only pan-sca */ 204 /* 7 line 21-1 data present in GOP (1=yes, 0=no) */ 205 /* 6 line 21-2 data present in GOP (1=yes, 0=no) */ 206 /* 5- 3 source resolution (0=720x480/576, 1=704x480/576, 2=352x480/57 */ 207 /* 2 source letterboxed (1=yes, 0=no) */ 208 /* 0 film/camera mode (0=camera, 1=film (625/50 only)) */ 209 210 211 /* bit definitions for capabilities: */ 212 /* can the hardware decode MPEG1 and/or MPEG2? */ 213 #define VIDEO_CAP_MPEG1 1 214 #define VIDEO_CAP_MPEG2 2 215 /* can you send a system and/or program stream to video device? 216 (you still have to open the video and the audio device but only 217 send the stream to the video device) */ 218 #define VIDEO_CAP_SYS 4 219 #define VIDEO_CAP_PROG 8 220 /* can the driver also handle SPU, NAVI and CSS encoded data? 221 (CSS API is not present yet) */ 222 #define VIDEO_CAP_SPU 16 223 #define VIDEO_CAP_NAVI 32 224 #define VIDEO_CAP_CSS 64 225 226 227 #define VIDEO_STOP _IO('o', 21) 228 #define VIDEO_PLAY _IO('o', 22) 229 #define VIDEO_FREEZE _IO('o', 23) 230 #define VIDEO_CONTINUE _IO('o', 24) 231 #define VIDEO_SELECT_SOURCE _IO('o', 25) 232 #define VIDEO_SET_BLANK _IO('o', 26) 233 #define VIDEO_GET_STATUS _IOR('o', 27, struct video_status) 234 #define VIDEO_GET_EVENT _IOR('o', 28, struct video_event) 235 #define VIDEO_SET_DISPLAY_FORMAT _IO('o', 29) 236 #define VIDEO_STILLPICTURE _IOW('o', 30, struct video_still_picture) 237 #define VIDEO_FAST_FORWARD _IO('o', 31) 238 #define VIDEO_SLOWMOTION _IO('o', 32) 239 #define VIDEO_GET_CAPABILITIES _IOR('o', 33, unsigned int) 240 #define VIDEO_CLEAR_BUFFER _IO('o', 34) 241 #define VIDEO_SET_ID _IO('o', 35) 242 #define VIDEO_SET_STREAMTYPE _IO('o', 36) 243 #define VIDEO_SET_FORMAT _IO('o', 37) 244 #define VIDEO_SET_SYSTEM _IO('o', 38) 245 #define VIDEO_SET_HIGHLIGHT _IOW('o', 39, video_highlight_t) 246 #define VIDEO_SET_SPU _IOW('o', 50, video_spu_t) 247 #define VIDEO_SET_SPU_PALETTE _IOW('o', 51, video_spu_palette_t) 248 #define VIDEO_GET_NAVI _IOR('o', 52, video_navi_pack_t) 249 #define VIDEO_SET_ATTRIBUTES _IO('o', 53) 250 #define VIDEO_GET_SIZE _IOR('o', 55, video_size_t) 251 #define VIDEO_GET_FRAME_RATE _IOR('o', 56, unsigned int) 252 253 /** 254 * VIDEO_GET_PTS 255 * 256 * Read the 33 bit presentation time stamp as defined 257 * in ITU T-REC-H.222.0 / ISO/IEC 13818-1. 258 * 259 * The PTS should belong to the currently played 260 * frame if possible, but may also be a value close to it 261 * like the PTS of the last decoded frame or the last PTS 262 * extracted by the PES parser. 263 */ 264 #define VIDEO_GET_PTS _IOR('o', 57, __u64) 265 266 /* Read the number of displayed frames since the decoder was started */ 267 #define VIDEO_GET_FRAME_COUNT _IOR('o', 58, __u64) 268 269 #define VIDEO_COMMAND _IOWR('o', 59, struct video_command) 270 #define VIDEO_TRY_COMMAND _IOWR('o', 60, struct video_command) 271 272 #endif /*_DVBVIDEO_H_*/ 273
