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1/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */2/*3 * video.h - DEPRECATED MPEG-TS video decoder API4 *5 * NOTE: should not be used on future drivers6 *7 * Copyright (C) 2000 Marcus Metzler <marcus@convergence.de>8 * & Ralph Metzler <ralph@convergence.de>9 * for convergence integrated media GmbH10 */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#endif19 20typedef 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 27typedef 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 33typedef struct {34 int w;35 int h;36 video_format_t aspect_ratio;37} video_size_t;38 39typedef enum {40 VIDEO_SOURCE_DEMUX, /* Select the demux as the main source */41 VIDEO_SOURCE_MEMORY /* If this source is selected, the stream42 comes from the user through the write43 system call */44} video_stream_source_t;45 46 47typedef 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 application74 This ensures it can be extended safely in the future. */75struct 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 whether100 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 107struct video_event {108 __s32 type;109#define VIDEO_EVENT_SIZE_CHANGED 1110#define VIDEO_EVENT_FRAME_RATE_CHANGED 2111#define VIDEO_EVENT_DECODER_STOPPED 3112#define VIDEO_EVENT_VSYNC 4113 /* 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 123struct 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 132struct video_still_picture {133 char __user *iFrame; /* pointer to a single iframe in memory */134 __s32 size;135};136 137 138typedef __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 1155#define VIDEO_CAP_MPEG2 2156/* 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 only158 send the stream to the video device) */159#define VIDEO_CAP_SYS 4160#define VIDEO_CAP_PROG 8161/* can the driver also handle SPU, NAVI and CSS encoded data?162 (CSS API is not present yet) */163#define VIDEO_CAP_SPU 16164#define VIDEO_CAP_NAVI 32165#define VIDEO_CAP_CSS 64166 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_PTS188 *189 * Read the 33 bit presentation time stamp as defined190 * in ITU T-REC-H.222.0 / ISO/IEC 13818-1.191 *192 * The PTS should belong to the currently played193 * frame if possible, but may also be a value close to it194 * like the PTS of the last decoded frame or the last PTS195 * 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