diff options
Diffstat (limited to 'include/uapi/linux/dvb/video.h')
| -rw-r--r-- | include/uapi/linux/dvb/video.h | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/include/uapi/linux/dvb/video.h b/include/uapi/linux/dvb/video.h new file mode 100644 index 000000000..43ba8b0a3 --- /dev/null +++ b/include/uapi/linux/dvb/video.h @@ -0,0 +1,218 @@ +/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */ +/* + * video.h + * + * Copyright (C) 2000 Marcus Metzler <marcus@convergence.de> + * & Ralph Metzler <ralph@convergence.de> + * for convergence integrated media GmbH + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public License + * as published by the Free Software Foundation; either version 2.1 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + */ + +#ifndef _UAPI_DVBVIDEO_H_ +#define _UAPI_DVBVIDEO_H_ + +#include <linux/types.h> +#ifndef __KERNEL__ +#include <time.h> +#endif + +typedef enum { + VIDEO_FORMAT_4_3, /* Select 4:3 format */ + VIDEO_FORMAT_16_9, /* Select 16:9 format. */ + VIDEO_FORMAT_221_1 /* 2.21:1 */ +} video_format_t; + + +typedef enum { + VIDEO_PAN_SCAN, /* use pan and scan format */ + VIDEO_LETTER_BOX, /* use letterbox format */ + VIDEO_CENTER_CUT_OUT /* use center cut out format */ +} video_displayformat_t; + +typedef struct { + int w; + int h; + video_format_t aspect_ratio; +} video_size_t; + +typedef enum { + VIDEO_SOURCE_DEMUX, /* Select the demux as the main source */ + VIDEO_SOURCE_MEMORY /* If this source is selected, the stream + comes from the user through the write + system call */ +} video_stream_source_t; + + +typedef enum { + VIDEO_STOPPED, /* Video is stopped */ + VIDEO_PLAYING, /* Video is currently playing */ + VIDEO_FREEZED /* Video is freezed */ +} video_play_state_t; + + +/* Decoder commands */ +#define VIDEO_CMD_PLAY (0) +#define VIDEO_CMD_STOP (1) +#define VIDEO_CMD_FREEZE (2) +#define VIDEO_CMD_CONTINUE (3) + +/* Flags for VIDEO_CMD_FREEZE */ +#define VIDEO_CMD_FREEZE_TO_BLACK (1 << 0) + +/* Flags for VIDEO_CMD_STOP */ +#define VIDEO_CMD_STOP_TO_BLACK (1 << 0) +#define VIDEO_CMD_STOP_IMMEDIATELY (1 << 1) + +/* Play input formats: */ +/* The decoder has no special format requirements */ +#define VIDEO_PLAY_FMT_NONE (0) +/* The decoder requires full GOPs */ +#define VIDEO_PLAY_FMT_GOP (1) + +/* The structure must be zeroed before use by the application + This ensures it can be extended safely in the future. */ +struct video_command { + __u32 cmd; + __u32 flags; + union { + struct { + __u64 pts; + } stop; + + struct { + /* 0 or 1000 specifies normal speed, + 1 specifies forward single stepping, + -1 specifies backward single stepping, + >1: playback at speed/1000 of the normal speed, + <-1: reverse playback at (-speed/1000) of the normal speed. */ + __s32 speed; + __u32 format; + } play; + + struct { + __u32 data[16]; + } raw; + }; +}; + +/* FIELD_UNKNOWN can be used if the hardware does not know whether + the Vsync is for an odd, even or progressive (i.e. non-interlaced) + field. */ +#define VIDEO_VSYNC_FIELD_UNKNOWN (0) +#define VIDEO_VSYNC_FIELD_ODD (1) +#define VIDEO_VSYNC_FIELD_EVEN (2) +#define VIDEO_VSYNC_FIELD_PROGRESSIVE (3) + +struct video_event { + __s32 type; +#define VIDEO_EVENT_SIZE_CHANGED 1 +#define VIDEO_EVENT_FRAME_RATE_CHANGED 2 +#define VIDEO_EVENT_DECODER_STOPPED 3 +#define VIDEO_EVENT_VSYNC 4 + /* unused, make sure to use atomic time for y2038 if it ever gets used */ + long timestamp; + union { + video_size_t size; + unsigned int frame_rate; /* in frames per 1000sec */ + unsigned char vsync_field; /* unknown/odd/even/progressive */ + } u; +}; + + +struct video_status { + int video_blank; /* blank video on freeze? */ + video_play_state_t play_state; /* current state of playback */ + video_stream_source_t stream_source; /* current source (demux/memory) */ + video_format_t video_format; /* current aspect ratio of stream*/ + video_displayformat_t display_format;/* selected cropping mode */ +}; + + +struct video_still_picture { + char __user *iFrame; /* pointer to a single iframe in memory */ + __s32 size; +}; + + +typedef __u16 video_attributes_t; +/* bits: descr. */ +/* 15-14 Video compression mode (0=MPEG-1, 1=MPEG-2) */ +/* 13-12 TV system (0=525/60, 1=625/50) */ +/* 11-10 Aspect ratio (0=4:3, 3=16:9) */ +/* 9- 8 permitted display mode on 4:3 monitor (0=both, 1=only pan-sca */ +/* 7 line 21-1 data present in GOP (1=yes, 0=no) */ +/* 6 line 21-2 data present in GOP (1=yes, 0=no) */ +/* 5- 3 source resolution (0=720x480/576, 1=704x480/576, 2=352x480/57 */ +/* 2 source letterboxed (1=yes, 0=no) */ +/* 0 film/camera mode (0= + *camera, 1=film (625/50 only)) */ + + +/* bit definitions for capabilities: */ +/* can the hardware decode MPEG1 and/or MPEG2? */ +#define VIDEO_CAP_MPEG1 1 +#define VIDEO_CAP_MPEG2 2 +/* can you send a system and/or program stream to video device? + (you still have to open the video and the audio device but only + send the stream to the video device) */ +#define VIDEO_CAP_SYS 4 +#define VIDEO_CAP_PROG 8 +/* can the driver also handle SPU, NAVI and CSS encoded data? + (CSS API is not present yet) */ +#define VIDEO_CAP_SPU 16 +#define VIDEO_CAP_NAVI 32 +#define VIDEO_CAP_CSS 64 + + +#define VIDEO_STOP _IO('o', 21) +#define VIDEO_PLAY _IO('o', 22) +#define VIDEO_FREEZE _IO('o', 23) +#define VIDEO_CONTINUE _IO('o', 24) +#define VIDEO_SELECT_SOURCE _IO('o', 25) +#define VIDEO_SET_BLANK _IO('o', 26) +#define VIDEO_GET_STATUS _IOR('o', 27, struct video_status) +#define VIDEO_GET_EVENT _IOR('o', 28, struct video_event) +#define VIDEO_SET_DISPLAY_FORMAT _IO('o', 29) +#define VIDEO_STILLPICTURE _IOW('o', 30, struct video_still_picture) +#define VIDEO_FAST_FORWARD _IO('o', 31) +#define VIDEO_SLOWMOTION _IO('o', 32) +#define VIDEO_GET_CAPABILITIES _IOR('o', 33, unsigned int) +#define VIDEO_CLEAR_BUFFER _IO('o', 34) +#define VIDEO_SET_STREAMTYPE _IO('o', 36) +#define VIDEO_SET_FORMAT _IO('o', 37) +#define VIDEO_GET_SIZE _IOR('o', 55, video_size_t) + +/** + * VIDEO_GET_PTS + * + * Read the 33 bit presentation time stamp as defined + * in ITU T-REC-H.222.0 / ISO/IEC 13818-1. + * + * The PTS should belong to the currently played + * frame if possible, but may also be a value close to it + * like the PTS of the last decoded frame or the last PTS + * extracted by the PES parser. + */ +#define VIDEO_GET_PTS _IOR('o', 57, __u64) + +/* Read the number of displayed frames since the decoder was started */ +#define VIDEO_GET_FRAME_COUNT _IOR('o', 58, __u64) + +#define VIDEO_COMMAND _IOWR('o', 59, struct video_command) +#define VIDEO_TRY_COMMAND _IOWR('o', 60, struct video_command) + +#endif /* _UAPI_DVBVIDEO_H_ */ |