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