/* conform.c, conformance checks                                            *//* Copyright (C) 1996, MPEG Software Simulation Group. All Rights Reserved. *//* * Disclaimer of Warranty * * These software programs are available to the user without any license fee or * royalty on an "as is" basis.  The MPEG Software Simulation Group disclaims * any and all warranties, whether express, implied, or statuary, including any * implied warranties or merchantability or of fitness for a particular * purpose.  In no event shall the copyright-holder be liable for any * incidental, punitive, or consequential damages of any kind whatsoever * arising from the use of these programs. * * This disclaimer of warranty extends to the user of these programs and user's * customers, employees, agents, transferees, successors, and assigns. * * The MPEG Software Simulation Group does not represent or warrant that the * programs furnished hereunder are free of infringement of any third-party * patents. * * Commercial implementations of MPEG-1 and MPEG-2 video, including shareware, * are subject to royalty fees to patent holders.  Many of these patents are * general enough such that they are unavoidable regardless of implementation * design. * */

/*
 * 4/4/97 - John Schlichther
 *
 * extensively altered to create avi2mpg1 - avi to mpeg-1 encoder
 *
 * Since avi file, and the avi subsystem are platform dependant, cross
 * platform compatibility removed, many optional features disabled or
 * removed, code generally trimmed to a minimum.
 *
 */

#include <stdio.h>#include <stdlib.h>#include "global.h"/* check for (level independent) parameter limits */void range_checks(){  int i;  /* range and value checks */  if (horizontal_size<1 || horizontal_size>16383)    error("horizontal_size must be between 1 and 16383");  if (horizontal_size>4095)    error("horizontal_size must be less than 4096 (MPEG-1)");  if ((horizontal_size&4095)==0)    error("horizontal_size must not be a multiple of 4096");  if (chroma_format!=CHROMA444 && horizontal_size%2 != 0)    error("horizontal_size must be a even (4:2:0 / 4:2:2)");  if (vertical_size<1 || vertical_size>16383)    error("vertical_size must be between 1 and 16383");  if (vertical_size>4095)    error("vertical size must be less than 4096 (MPEG-1)");  if ((vertical_size&4095)==0)    error("vertical_size must not be a multiple of 4096");  if (chroma_format==CHROMA420 && vertical_size%2 != 0)    error("vertical_size must be a even (4:2:0)");  if(fieldpic)  {    if (vertical_size%2 != 0)      error("vertical_size must be a even (field pictures)");    if (chroma_format==CHROMA420 && vertical_size%4 != 0)      error("vertical_size must be a multiple of 4 (4:2:0 field pictures)");  }    if (aspectratio<1 || aspectratio>14)      error("pel_aspect_ratio must be between 1 and 14 (MPEG-1)");  if (frame_rate_code<1 || frame_rate_code>8)    error("frame_rate code must be between 1 and 8");  if (bit_rate<=0.0)    error("bit_rate must be positive");  if (bit_rate > ((1<<30)-1)*400.0)    error("bit_rate must be less than 429 Gbit/s");  if (bit_rate > ((1<<18)-1)*400.0)    error("bit_rate must be less than 104 Mbit/s (MPEG-1)");  if (vbv_buffer_size<1 || vbv_buffer_size>0x3ffff)    error("vbv_buffer_size must be in range 1..(2^18-1)");  if (vbv_buffer_size>=1024)    error("vbv_buffer_size must be less than 1024 (MPEG-1)");  if (chroma_format<CHROMA420 || chroma_format>CHROMA444)    error("chroma_format must be in range 1...3");  if (video_format<0 || video_format>4)    error("video_format must be in range 0...4");  if (color_primaries<1 || color_primaries>7 || color_primaries==3)    error("color_primaries must be in range 1...2 or 4...7");  if (transfer_characteristics<1 || transfer_characteristics>7      || transfer_characteristics==3)    error("transfer_characteristics must be in range 1...2 or 4...7");  if (matrix_coefficients<1 || matrix_coefficients>7 || matrix_coefficients==3)    error("matrix_coefficients must be in range 1...2 or 4...7");  if (display_horizontal_size<0 || display_horizontal_size>16383)    error("display_horizontal_size must be in range 0...16383");  if (display_vertical_size<0 || display_vertical_size>16383)    error("display_vertical_size must be in range 0...16383");  if (dc_prec<0 || dc_prec>3)    error("intra_dc_precision must be in range 0...3");  for (i=0; i<M; i++)  {    if (motion_data[i].forw_hor_f_code<1 || motion_data[i].forw_hor_f_code>9)      error("f_code must be between 1 and 9");    if (motion_data[i].forw_vert_f_code<1 || motion_data[i].forw_vert_f_code>9)      error("f_code must be between 1 and 9");    if (motion_data[i].forw_hor_f_code>7)      error("f_code must be le less than 8");    if (motion_data[i].forw_vert_f_code>7)      error("f_code must be le less than 8");    if (motion_data[i].sxf<=0)      error("search window must be positive"); /* doesn't belong here */    if (motion_data[i].syf<=0)      error("search window must be positive");    if (i!=0)    {      if (motion_data[i].back_hor_f_code<1 || motion_data[i].back_hor_f_code>9)        error("f_code must be between 1 and 9");      if (motion_data[i].back_vert_f_code<1 || motion_data[i].back_vert_f_code>9)        error("f_code must be between 1 and 9");      if (motion_data[i].back_hor_f_code>7)        error("f_code must be le less than 8");      if (motion_data[i].back_vert_f_code>7)        error("f_code must be le less than 8");      if (motion_data[i].sxb<=0)        error("search window must be positive");      if (motion_data[i].syb<=0)        error("search window must be positive");    }  }}/* identifies valid profile / level combinations */static char profile_level_defined[5][4] ={/* HL   H-14 ML   LL  */  {1,   1,   1,   0},  /* HP   */  {0,   1,   0,   0},  /* Spat */  {0,   0,   1,   1},  /* SNR  */  {1,   1,   1,   1},  /* MP   */  {0,   0,   1,   0}   /* SP   */};static struct level_limits {  int hor_f_code;  int vert_f_code;  int hor_size;  int vert_size;  int sample_rate;  int bit_rate; /* Mbit/s */  int vbv_buffer_size; /* 16384 bit steps */} maxval_tab[4] ={  {9, 5, 1920, 1152, 62668800, 80, 597}, /* HL */  {9, 5, 1440, 1152, 47001600, 60, 448}, /* H-14 */  {8, 5,  720,  576, 10368000, 15, 112}, /* ML */  {7, 4,  352,  288,  3041280,  4,  29}  /* LL */};//#define SP   5//#define MP   4//#define SNR  3//#define SPAT 2//#define HP   1//#define LL  10//#define ML   8//#define H14  6//#define HL   4