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/*
* Copyright (c) 1995 The Regents of the University of California.
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose, without fee, and without written agreement is
* hereby granted, provided that the above copyright notice and the following
* two paragraphs appear in all copies of this software.
*
* IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
* OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
* CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*/
/*
* Portions of this software Copyright (c) 1995 Brown University.
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose, without fee, and without written agreement
* is hereby granted, provided that the above copyright notice and the
* following two paragraphs appear in all copies of this software.
*
* IN NO EVENT SHALL BROWN UNIVERSITY BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
* OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF BROWN
* UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* BROWN UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
* BASIS, AND BROWN UNIVERSITY HAS NO OBLIGATION TO PROVIDE MAINTENANCE,
* SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*/
#ifndef MPEG_LIB_VIDEO_HEADER
#define MPEG_LIB_VIDEO_HEADER
#include <stdio.h>
#ifdef USEX
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#ifdef SH_MEM
#include <sys/ipc.h>
#include <sys/shm.h>
#include <X11/extensions/XShm.h>
#endif
#endif
/*
Changes to make the code reentrant:
deglobalized: ditherFlags, totNumFrames, realTimeStart, matched_depth,
filename, ditherType, curBits, ReconPMBlock statics, stream id
variables, Parse_done, swap, seekValue, input, EOF_flag, ReadPacket
statics, sys_layer, curVidStream, curVidStream, jmb_buf env (removed)
X globals now in xinfo: ditherType, visual, depth (also name), hints,
owncmFlag, et al
now const: scan
film_has_ended instead of FilmState
Additional changes:
if DISABLE_DITHER defined, don't compile dithering code
-lsh@cs.brown.edu (Loring Holden)
*/
/* X11/xmd.h correctly defines INT32, etc */
#ifndef XMD_H
typedef int INT32;
typedef short INT16;
typedef char INT8;
#endif
typedef unsigned int UINT32;
typedef unsigned short UINT16;
typedef unsigned char UINT8;
/* Define Parsing error codes. */
#define SKIP_PICTURE (-10)
#define SKIP_TO_START_CODE (-1)
#define PARSE_OK 1
/* Define BOOLEAN, TRUE, and FALSE. */
#define BOOLEAN int
#define TRUE 1
#define FALSE 0
/* Set ring buffer size. */
#define RING_BUF_SIZE 5
/* Macros for picture code type. */
#define I_TYPE 1
#define P_TYPE 2
#define B_TYPE 3
#define D_TYPE 4
/* Start codes. */
#define SEQ_END_CODE 0x000001b7
#define SEQ_START_CODE 0x000001b3
#define GOP_START_CODE 0x000001b8
#define PICTURE_START_CODE 0x00000100
#define SLICE_MIN_START_CODE 0x00000101
#define SLICE_MAX_START_CODE 0x000001af
#define EXT_START_CODE 0x000001b5
#define USER_START_CODE 0x000001b2
#define SEQUENCE_ERROR_CODE 0x000001b4
/* Number of macroblocks to process in one call to mpegVidRsrc. */
#define MB_QUANTUM 100
/* Macros used with macroblock address decoding. */
#define MB_STUFFING 34
#define MB_ESCAPE 35
/* Lock flags for pict images. */
#define DISPLAY_LOCK 0x01
#define PAST_LOCK 0x02
#define FUTURE_LOCK 0x04
#define HYBRID_DITHER 0
#define HYBRID2_DITHER 1
#define FS4_DITHER 2
#define FS2_DITHER 3
#define FS2FAST_DITHER 4
#define Twox2_DITHER 5
#define GRAY_DITHER 6
#define FULL_COLOR_DITHER 7
#define NO_DITHER 8
#define ORDERED_DITHER 9
#define MONO_DITHER 10
#define MONO_THRESHOLD 11
#define ORDERED2_DITHER 12
#define MBORDERED_DITHER 13
#define GRAY256_DITHER 14
#define PPM_DITHER 15
#define FULL_COLOR2_DITHER 16
#define GRAY2_DITHER 17
#define GRAY2562_DITHER 18
// MG
#define HALF_COLOR_DITHER 19
#ifdef DISABLE_DITHER
#define IS_2x2_DITHER(a) (0)
#else
#define IS_2x2_DITHER(a) ((a) == Twox2_DITHER || (a) == FULL_COLOR2_DITHER || (a) == GRAY2_DITHER || (a) == (GRAY2562_DITHER))
#endif
/* External declaration of row,col to zig zag conversion matrix. */
/* Brown - changed to const int because it is a help variable */
extern const int scan[][8];
/* Temporary definition of time stamp structure. */
typedef int TimeStamp;
/* Structure with reconstructed pixel values. */
typedef struct pict_image {
unsigned char *luminance; /* Luminance plane. */
unsigned char *Cr; /* Cr plane. */
unsigned char *Cb; /* Cb plane. */
unsigned char *display; /* Display plane. */
int locked; /* Lock flag. */
TimeStamp show_time; /* Presentation time. */
#ifdef SH_MEM
XShmSegmentInfo shminfo; /* Segment info. */
XImage *ximage; /* Ximage struct. */
#endif
} PictImage;
/* Group of pictures structure. */
typedef struct GoP {
BOOLEAN drop_flag; /* Flag indicating dropped frame. */
unsigned int tc_hours; /* Hour component of time code. */
unsigned int tc_minutes; /* Minute component of time code. */
unsigned int tc_seconds; /* Second component of time code. */
unsigned int tc_pictures; /* Picture counter of time code. */
BOOLEAN closed_gop; /* Indicates no pred. vectors to
previous group of pictures. */
BOOLEAN broken_link; /* B frame unable to be decoded. */
char *ext_data; /* Extension data. */
char *user_data; /* User data. */
} GoP;
/* Picture structure. */
typedef struct pict {
unsigned int temp_ref; /* Temporal reference. */
unsigned int code_type; /* Frame type: P, B, I */
unsigned int vbv_delay; /* Buffer delay. */
BOOLEAN full_pel_forw_vector; /* Forw. vectors specified in full
pixel values flag. */
unsigned int forw_r_size; /* Used for vector decoding. */
unsigned int forw_f; /* Used for vector decoding. */
BOOLEAN full_pel_back_vector; /* Back vectors specified in full
pixel values flag. */
unsigned int back_r_size; /* Used in decoding. */
unsigned int back_f; /* Used in decoding. */
char *extra_info; /* Extra bit picture info. */
char *ext_data; /* Extension data. */
char *user_data; /* User data. */
} Pict;
/* Slice structure. */
typedef struct slice {
unsigned int vert_pos; /* Vertical position of slice. */
unsigned int quant_scale; /* Quantization scale. */
char *extra_info; /* Extra bit slice info. */
} Slice;
/* Macroblock structure. */
typedef struct macroblock {
int mb_address; /* Macroblock address. */
int past_mb_addr; /* Previous mblock address. */
int motion_h_forw_code; /* Forw. horiz. motion vector code. */
unsigned int motion_h_forw_r; /* Used in decoding vectors. */
int motion_v_forw_code; /* Forw. vert. motion vector code. */
unsigned int motion_v_forw_r; /* Used in decdoinge vectors. */
int motion_h_back_code; /* Back horiz. motion vector code. */
unsigned int motion_h_back_r; /* Used in decoding vectors. */
int motion_v_back_code; /* Back vert. motion vector code. */
unsigned int motion_v_back_r; /* Used in decoding vectors. */
unsigned int cbp; /* Coded block pattern. */
BOOLEAN mb_intra; /* Intracoded mblock flag. */
BOOLEAN bpict_past_forw; /* Past B frame forw. vector flag. */
BOOLEAN bpict_past_back; /* Past B frame back vector flag. */
int past_intra_addr; /* Addr of last intracoded mblock. */
int recon_right_for_prev; /* Past right forw. vector. */
int recon_down_for_prev; /* Past down forw. vector. */
int recon_right_back_prev; /* Past right back vector. */
int recon_down_back_prev; /* Past down back vector. */
} Macroblock;
/* Block structure. */
typedef struct block {
short int dct_recon[8][8]; /* Reconstructed dct coeff matrix. */
short int dct_dc_y_past; /* Past lum. dc dct coefficient. */
short int dct_dc_cr_past; /* Past cr dc dct coefficient. */
short int dct_dc_cb_past; /* Past cb dc dct coefficient. */
} Block;
/* Video stream structure. */
typedef struct vid_stream {
unsigned int h_size; /* Horiz. size in pixels. */
unsigned int v_size; /* Vert. size in pixels. */
unsigned int mb_height; /* Vert. size in mblocks. */
unsigned int mb_width; /* Horiz. size in mblocks. */
unsigned char aspect_ratio; /* Code for aspect ratio. */
unsigned char picture_rate; /* Code for picture rate. */
unsigned int bit_rate; /* Bit rate. */
unsigned int vbv_buffer_size; /* Minimum buffer size. */
BOOLEAN const_param_flag; /* Contrained parameter flag. */
unsigned char intra_quant_matrix[8][8]; /* Quantization matrix for
intracoded frames. */
unsigned char non_intra_quant_matrix[8][8]; /* Quanitization matrix for
non intracoded frames. */
char *ext_data; /* Extension data. */
char *user_data; /* User data. */
GoP group; /* Current group of pict. */
Pict picture; /* Current picture. */
Slice slice; /* Current slice. */
Macroblock mblock; /* Current macroblock. */
Block block; /* Current block. */
int state; /* State of decoding. */
int bit_offset; /* Bit offset in stream. */
unsigned int *buffer; /* Pointer to next byte in
buffer. */
int buf_length; /* Length of remaining buffer.*/
unsigned int *buf_start; /* Pointer to buffer start. */
/* Brown - beginning of added variables that used to be static or global */
int max_buf_length; /* Max length of buffer. */
int film_has_ended; /* Boolean - film has ended */
int sys_layer; /* -1 uninitialized,
0 video layer,
1 syslayer */
unsigned int num_left; /* from ReadPacket - leftover */
unsigned int leftover_bytes; /* from ReadPacket - leftover */
int EOF_flag; /* stream is EOF */
FILE *input; /* stream comes from here */
long seekValue; /* 0 no seeking
>0 do a seek,
<0 already has done seek */
BOOLEAN swap; /* from ReadFile */
BOOLEAN Parse_done; /* from read_sys */
int gAudioStreamID;
int gVideoStreamID;
int gReservedStreamID;
int right_for,down_for; /* From ReconPMBlock, video.c */
int right_half_for, down_half_for;
unsigned int curBits; /* current bits */
int matched_depth; /* depth of displayed movie */
char *filename; /* Name of stream filename */
int ditherType; /* What type of dithering */
char *ditherFlags; /* flags for MB Ordered dither*/
int totNumFrames; /* Total Number of Frames */
double realTimeStart; /* When did the movie start? */
/* Brown - end of added variables */
PictImage *past; /* Past predictive frame. */
PictImage *future; /* Future predictive frame. */
PictImage *current; /* Current frame. */
PictImage *ring[RING_BUF_SIZE]; /* Ring buffer of frames. */
/* x,y size of PPM output file */
int ppm_width, ppm_height, ppm_modulus;
} VidStream;
typedef struct {
/* XImage *ximage;*/
/* Colormap cmap;*/
/* Window window;*/
/* GC gc;
Display *display;*/
int owncmFlag;
/* XSizeHints hints;*/
/* Visual *visual;*/
int depth;
char *name;
int ditherType;
/* Window ExistingWindow;*/
} XInfo;
/* Declaration of global display pointer. */
#if SH_MEM
/* Shared memory flag. */
extern int shmemFlag;
#endif
/* Quiet mode flag. */
extern int quietFlag;
/* Flag controlling the "Press return" prompt */
extern int requireKeypressFlag;
/* Flag controlling speed vs. quality */
extern int qualityFlag;
/* Gamma correction stuff */
extern int gammaCorrectFlag;
extern double gammaCorrect;
/* Chroma correction stuff */
extern int chromaCorrectFlag;
extern double chromaCorrect;
/* Definition of Contant integer scale factor. */
#define CONST_BITS 13
/* Misc DCT definitions */
#define DCTSIZE 8 /* The basic DCT block is 8x8 samples */
#define DCTSIZE2 64 /* DCTSIZE squared; # of elements in a block */
#define GLOBAL /* a function referenced thru EXTERNs */
typedef short DCTELEM;
typedef DCTELEM DCTBLOCK[DCTSIZE2];
#ifdef SH_MEM
extern int gXErrorFlag;
#endif
extern int loopFlag;
extern int noDisplayFlag;
extern int partialFlag, startFrame, endFrame;
#ifdef ANALYSIS
extern unsigned int bitCount;
extern int showEachFlag;
extern unsigned int cacheHit[8][8];
extern unsigned int cacheMiss[8][8];
#endif
#if !defined(__MIPSEL__) && (defined(MIPSEL) || defined(__MIPSEL) || defined(__MIPSEL__) || defined(__mipsel) || defined(__mipsel__))
#define __MIPSEL__ 1
#endif
#if !defined(__MIPSEB__) && (defined(MIPSEB) || defined(__MIPSEB) || defined(__MIPSEB__) || defined(__mipseb) || defined(__mipseb__))
#define __MIPSEB__ 1
#endif
#if !defined(__SPARC__) && (defined(SPARC) || defined(__SPARC) || defined(__SPARC__) || defined(__sparc) || defined(__sparc__))
#define __SPARC__ 1
#endif
#if !defined(__alpha__) && (defined(ALPHA) || defined(__ALPHA) || defined(__ALPHA__) || defined(__alpha))
#define __alpha__ 1
#endif
#if !defined(__680x0__) && (defined(__680x0) || defined(__680x0__))
#define __680x0__ 1
#endif
#if !defined(__AIX__) && (defined(AIX) || defined(_AIX) || defined(__AIX) || defined(__AIX__))
#define __AIX__ 1
#endif
#if !defined(__RS6000__) && (defined(__AIX__) || defined(RS6000) || defined(_RS6000) || defined(__RS6000) || defined(__RS6000__))
#define __RS6000__ 1
#endif
#if !defined(__HPUX__) && (defined(HPUX) || defined(_HPUX) || defined(__HPUX) || defined(__HPUX__))
#define __HPUX__ 1
#endif
#if !defined(__HPUX__) && (defined(hpux) || defined(_hpux) || defined(__hpux) || defined(__hpux__))
#define __HPUX__ 1
#endif
#if !defined(__VAX__) && (defined(VAX) || defined (__VAX))
#define __VAX__ 1
#endif
#if !defined(__SCO__) && (defined(SCO) || defined(__SCO) || defined(sco) || defined(__sco__))
#define __SCO__ 1
#endif
#if defined(__i386__) || defined(__VAX__) || defined(__MIPSEL__) || defined(__alpha__) || defined(__SCO__)
#undef BIG_ENDIAN_ARCHITECTURE
#define LITTLE_ENDIAN_ARCHITECTURE 1
#endif
#if defined(__RS6000__) || defined(__SPARC__) || defined(__680x0__) || defined(__HPUX__) || defined(__MIPSEB__) || defined(convex) || defined(__convex__)
#undef LITTLE_ENDIAN_ARCHITECTURE
#define BIG_ENDIAN_ARCHITECTURE 1
#endif
#if !defined(LITTLE_ENDIAN_ARCHITECTURE) && !defined(BIG_ENDIAN_ARCHITECTURE)
Error: Unknown endianism of architecture
#endif
#ifdef __alpha__
#define SIXTYFOUR_BIT
#endif
#endif /* video.h already included */