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 28 #include <asm/types.h> 29 #include <stdint.h> 30 #include <time.h> 31 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 int32_t 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 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 *iFrame; /* pointer to a single iframe in memory */ 158 int32_t size; 159 }; 160 161 162 typedef 163 struct video_highlight { 164 int active; /* 1=show highlight, 0=hide highlight */ 165 uint8_t contrast1; /* 7- 4 Pattern pixel contrast */ 166 /* 3- 0 Background pixel contrast */ 167 uint8_t contrast2; /* 7- 4 Emphasis pixel-2 contrast */ 168 /* 3- 0 Emphasis pixel-1 contrast */ 169 uint8_t color1; /* 7- 4 Pattern pixel color */ 170 /* 3- 0 Background pixel color */ 171 uint8_t color2; /* 7- 4 Emphasis pixel-2 color */ 172 /* 3- 0 Emphasis pixel-1 color */ 173 uint32_t ypos; /* 23-22 auto action mode */ 174 /* 21-12 start y */ 175 /* 9- 0 end y */ 176 uint32_t 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 uint8_t *palette; 191 } video_spu_palette_t; 192 193 194 typedef struct video_navi_pack { 195 int length; /* 0 ... 1024 */ 196 uint8_t data[1024]; 197 } video_navi_pack_t; 198 199 200 typedef uint16_t 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) 254 255 /** 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 /*_DVBVIDEO_H_*/ 275
