video.h 8.5 KB

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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. #ifndef _UAPI_DVBVIDEO_H_
  24. #define _UAPI_DVBVIDEO_H_
  25. #include <linux/types.h>
  26. #ifndef __KERNEL__
  27. #include <time.h>
  28. #endif
  29. typedef enum {
  30. VIDEO_FORMAT_4_3, /* Select 4:3 format */
  31. VIDEO_FORMAT_16_9, /* Select 16:9 format. */
  32. VIDEO_FORMAT_221_1 /* 2.21:1 */
  33. } video_format_t;
  34. typedef enum {
  35. VIDEO_SYSTEM_PAL,
  36. VIDEO_SYSTEM_NTSC,
  37. VIDEO_SYSTEM_PALN,
  38. VIDEO_SYSTEM_PALNc,
  39. VIDEO_SYSTEM_PALM,
  40. VIDEO_SYSTEM_NTSC60,
  41. VIDEO_SYSTEM_PAL60,
  42. VIDEO_SYSTEM_PALM60
  43. } video_system_t;
  44. typedef enum {
  45. VIDEO_PAN_SCAN, /* use pan and scan format */
  46. VIDEO_LETTER_BOX, /* use letterbox format */
  47. VIDEO_CENTER_CUT_OUT /* use center cut out format */
  48. } video_displayformat_t;
  49. typedef struct {
  50. int w;
  51. int h;
  52. video_format_t aspect_ratio;
  53. } video_size_t;
  54. typedef enum {
  55. VIDEO_SOURCE_DEMUX, /* Select the demux as the main source */
  56. VIDEO_SOURCE_MEMORY /* If this source is selected, the stream
  57. comes from the user through the write
  58. system call */
  59. } video_stream_source_t;
  60. typedef enum {
  61. VIDEO_STOPPED, /* Video is stopped */
  62. VIDEO_PLAYING, /* Video is currently playing */
  63. VIDEO_FREEZED /* Video is freezed */
  64. } video_play_state_t;
  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)
  70. /* Flags for VIDEO_CMD_FREEZE */
  71. #define VIDEO_CMD_FREEZE_TO_BLACK (1 << 0)
  72. /* Flags for VIDEO_CMD_STOP */
  73. #define VIDEO_CMD_STOP_TO_BLACK (1 << 0)
  74. #define VIDEO_CMD_STOP_IMMEDIATELY (1 << 1)
  75. /* Play input formats: */
  76. /* The decoder has no special format requirements */
  77. #define VIDEO_PLAY_FMT_NONE (0)
  78. /* The decoder requires full GOPs */
  79. #define VIDEO_PLAY_FMT_GOP (1)
  80. /* The structure must be zeroed before use by the application
  81. This ensures it can be extended safely in the future. */
  82. struct video_command {
  83. __u32 cmd;
  84. __u32 flags;
  85. union {
  86. struct {
  87. __u64 pts;
  88. } stop;
  89. struct {
  90. /* 0 or 1000 specifies normal speed,
  91. 1 specifies forward single stepping,
  92. -1 specifies backward single stepping,
  93. >1: playback at speed/1000 of the normal speed,
  94. <-1: reverse playback at (-speed/1000) of the normal speed. */
  95. __s32 speed;
  96. __u32 format;
  97. } play;
  98. struct {
  99. __u32 data[16];
  100. } raw;
  101. };
  102. };
  103. /* FIELD_UNKNOWN can be used if the hardware does not know whether
  104. the Vsync is for an odd, even or progressive (i.e. non-interlaced)
  105. field. */
  106. #define VIDEO_VSYNC_FIELD_UNKNOWN (0)
  107. #define VIDEO_VSYNC_FIELD_ODD (1)
  108. #define VIDEO_VSYNC_FIELD_EVEN (2)
  109. #define VIDEO_VSYNC_FIELD_PROGRESSIVE (3)
  110. struct video_event {
  111. __s32 type;
  112. #define VIDEO_EVENT_SIZE_CHANGED 1
  113. #define VIDEO_EVENT_FRAME_RATE_CHANGED 2
  114. #define VIDEO_EVENT_DECODER_STOPPED 3
  115. #define VIDEO_EVENT_VSYNC 4
  116. __kernel_time_t timestamp;
  117. union {
  118. video_size_t size;
  119. unsigned int frame_rate; /* in frames per 1000sec */
  120. unsigned char vsync_field; /* unknown/odd/even/progressive */
  121. } u;
  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. struct video_still_picture {
  131. char __user *iFrame; /* pointer to a single iframe in memory */
  132. __s32 size;
  133. };
  134. typedef
  135. struct video_highlight {
  136. int active; /* 1=show highlight, 0=hide highlight */
  137. __u8 contrast1; /* 7- 4 Pattern pixel contrast */
  138. /* 3- 0 Background pixel contrast */
  139. __u8 contrast2; /* 7- 4 Emphasis pixel-2 contrast */
  140. /* 3- 0 Emphasis pixel-1 contrast */
  141. __u8 color1; /* 7- 4 Pattern pixel color */
  142. /* 3- 0 Background pixel color */
  143. __u8 color2; /* 7- 4 Emphasis pixel-2 color */
  144. /* 3- 0 Emphasis pixel-1 color */
  145. __u32 ypos; /* 23-22 auto action mode */
  146. /* 21-12 start y */
  147. /* 9- 0 end y */
  148. __u32 xpos; /* 23-22 button color number */
  149. /* 21-12 start x */
  150. /* 9- 0 end x */
  151. } video_highlight_t;
  152. typedef struct video_spu {
  153. int active;
  154. int stream_id;
  155. } video_spu_t;
  156. typedef struct video_spu_palette { /* SPU Palette information */
  157. int length;
  158. __u8 __user *palette;
  159. } video_spu_palette_t;
  160. typedef struct video_navi_pack {
  161. int length; /* 0 ... 1024 */
  162. __u8 data[1024];
  163. } video_navi_pack_t;
  164. typedef __u16 video_attributes_t;
  165. /* bits: descr. */
  166. /* 15-14 Video compression mode (0=MPEG-1, 1=MPEG-2) */
  167. /* 13-12 TV system (0=525/60, 1=625/50) */
  168. /* 11-10 Aspect ratio (0=4:3, 3=16:9) */
  169. /* 9- 8 permitted display mode on 4:3 monitor (0=both, 1=only pan-sca */
  170. /* 7 line 21-1 data present in GOP (1=yes, 0=no) */
  171. /* 6 line 21-2 data present in GOP (1=yes, 0=no) */
  172. /* 5- 3 source resolution (0=720x480/576, 1=704x480/576, 2=352x480/57 */
  173. /* 2 source letterboxed (1=yes, 0=no) */
  174. /* 0 film/camera mode (0=
  175. *camera, 1=film (625/50 only)) */
  176. /* bit definitions for capabilities: */
  177. /* can the hardware decode MPEG1 and/or MPEG2? */
  178. #define VIDEO_CAP_MPEG1 1
  179. #define VIDEO_CAP_MPEG2 2
  180. /* can you send a system and/or program stream to video device?
  181. (you still have to open the video and the audio device but only
  182. send the stream to the video device) */
  183. #define VIDEO_CAP_SYS 4
  184. #define VIDEO_CAP_PROG 8
  185. /* can the driver also handle SPU, NAVI and CSS encoded data?
  186. (CSS API is not present yet) */
  187. #define VIDEO_CAP_SPU 16
  188. #define VIDEO_CAP_NAVI 32
  189. #define VIDEO_CAP_CSS 64
  190. #define VIDEO_STOP _IO('o', 21)
  191. #define VIDEO_PLAY _IO('o', 22)
  192. #define VIDEO_FREEZE _IO('o', 23)
  193. #define VIDEO_CONTINUE _IO('o', 24)
  194. #define VIDEO_SELECT_SOURCE _IO('o', 25)
  195. #define VIDEO_SET_BLANK _IO('o', 26)
  196. #define VIDEO_GET_STATUS _IOR('o', 27, struct video_status)
  197. #define VIDEO_GET_EVENT _IOR('o', 28, struct video_event)
  198. #define VIDEO_SET_DISPLAY_FORMAT _IO('o', 29)
  199. #define VIDEO_STILLPICTURE _IOW('o', 30, struct video_still_picture)
  200. #define VIDEO_FAST_FORWARD _IO('o', 31)
  201. #define VIDEO_SLOWMOTION _IO('o', 32)
  202. #define VIDEO_GET_CAPABILITIES _IOR('o', 33, unsigned int)
  203. #define VIDEO_CLEAR_BUFFER _IO('o', 34)
  204. #define VIDEO_SET_ID _IO('o', 35)
  205. #define VIDEO_SET_STREAMTYPE _IO('o', 36)
  206. #define VIDEO_SET_FORMAT _IO('o', 37)
  207. #define VIDEO_SET_SYSTEM _IO('o', 38)
  208. #define VIDEO_SET_HIGHLIGHT _IOW('o', 39, video_highlight_t)
  209. #define VIDEO_SET_SPU _IOW('o', 50, video_spu_t)
  210. #define VIDEO_SET_SPU_PALETTE _IOW('o', 51, video_spu_palette_t)
  211. #define VIDEO_GET_NAVI _IOR('o', 52, video_navi_pack_t)
  212. #define VIDEO_SET_ATTRIBUTES _IO('o', 53)
  213. #define VIDEO_GET_SIZE _IOR('o', 55, video_size_t)
  214. #define VIDEO_GET_FRAME_RATE _IOR('o', 56, unsigned int)
  215. /**
  216. * VIDEO_GET_PTS
  217. *
  218. * Read the 33 bit presentation time stamp as defined
  219. * in ITU T-REC-H.222.0 / ISO/IEC 13818-1.
  220. *
  221. * The PTS should belong to the currently played
  222. * frame if possible, but may also be a value close to it
  223. * like the PTS of the last decoded frame or the last PTS
  224. * extracted by the PES parser.
  225. */
  226. #define VIDEO_GET_PTS _IOR('o', 57, __u64)
  227. /* Read the number of displayed frames since the decoder was started */
  228. #define VIDEO_GET_FRAME_COUNT _IOR('o', 58, __u64)
  229. #define VIDEO_COMMAND _IOWR('o', 59, struct video_command)
  230. #define VIDEO_TRY_COMMAND _IOWR('o', 60, struct video_command)
  231. #endif /* _UAPI_DVBVIDEO_H_ */