/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */ /* * video.h - DEPRECATED MPEG-TS video decoder API * * NOTE: should not be used on future drivers * * Copyright (C) 2000 Marcus Metzler <marcus@convergence.de> * & Ralph Metzler <ralph@convergence.de> * for convergence integrated media GmbH
*/
typedefenum {
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;
typedefstruct { int w; int h;
video_format_t aspect_ratio;
} video_size_t;
typedefenum {
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;
typedefenum {
VIDEO_STOPPED, /* Video is stopped */
VIDEO_PLAYING, /* Video is currently playing */
VIDEO_FREEZED /* Video is freezed */
} video_play_state_t;
/* 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; unsignedint frame_rate; /* in frames per 1000sec */ unsignedchar 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
/** * 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)
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