www.pudn.com > avi 到 mpeg 的转换程序及源代码.zip > INITS.C

/************************************************************************* 
*  mplex - MPEG/SYSTEMS multiplexer					 * 
*  Copyright (C) 1994 1995 Christoph Moar				 * 
*  Siemens ZFE ST SN 11 / T SN 6					 * 
*									 * 
*  moar@informatik.tu-muenchen.de 					 * 
*       (Christoph Moar)			 			 * 
*  klee@heaven.zfe.siemens.de						 * 
*       (Christian Kleegrewe, Siemens only requests)			 * 
*									 * 
*  This program is free software; you can redistribute it and/or modify	 * 
*  it under the terms of the GNU General Public License as published by	 *	 
*  the Free Software Foundation; either version 2 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 General Public License	 * 
*  along with this program; if not, write to the Free Software		 * 
*  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.		 * 
*************************************************************************/ 
/* 
 * 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 "mplex.h" 
/************************************************************************* 
	Initialisieren von Strukturen fuer S*N cc Compiler. 
 
	Initialize structs for S*N cc compiler. 
*************************************************************************/ 
 
void empty_video_struc (pointer) 
 
Video_struc *pointer; 
{ 
    int i; 
 
    pointer->stream_length	= 0; 
    pointer->num_sequence 	= 0; 
    pointer->num_seq_end	= 0; 
    pointer->num_pictures 	= 0; 
    pointer->num_groups   	= 0; 
    for (i=0; i<4; i++) 
    { 
        pointer->num_frames[i] 	= 0; 
        pointer->avg_frames[i]	= 0; 
    } 
    pointer->horizontal_size 	= 0; 
    pointer->vertical_size	= 0; 
    pointer->aspect_ratio 	= 0; 
    pointer->picture_rate 	= 0; 
    pointer->bit_rate		= 0; 
    pointer->comp_bit_rate	= 0; 
    pointer->vbv_buffer_size	= 0; 
    pointer->CSPF		= 0; 
} 
 
void empty_audio_struc (pointer) 
 
Audio_struc *pointer; 
{    
    int i; 
 
    pointer->stream_length 	= 0; 
    pointer->num_syncword 	= 0; 
    for (i=0; i<2; i++) 
    { 
        pointer->num_frames [i]	= 0; 
        pointer->size_frames[i]	= 0; 
    } 
    pointer->layer		= 0; 
    pointer->protection 	= 0; 
    pointer->bit_rate 		= 0; 
    pointer->frequency 		= 0; 
    pointer->mode 		= 0; 
    pointer->mode_extension 	= 0; 
    pointer->copyright      	= 0; 
    pointer->original_copy  	= 0; 
    pointer->emphasis		= 0; 
} 
 
void empty_vaunit_struc (pointer) 
Vaunit_struc *pointer; 
{ 
    pointer->length = 0; 
    pointer->type   = 0; 
    empty_timecode_struc (&pointer->DTS); 
    empty_timecode_struc (&pointer->PTS); 
} 
 
void empty_aaunit_struc (pointer) 
Aaunit_struc *pointer; 
{ 
    pointer->length = 0; 
    empty_timecode_struc (&pointer->PTS); 
} 
 
void empty_sector_struc (pointer) 
Sector_struc *pointer; 
{ 
    pointer->length_of_sector  = 0; 
    pointer->length_of_packet_data  = 0; 
    empty_timecode_struc (&pointer->TS); 
} 
 
 
void init_buffer_struc (pointer, size) 
Buffer_struc *pointer; 
unsigned int size; 
{ 
    pointer->max_size = size; 
    pointer->first = NULL; 
}