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util.cpp
Package: vlc-1.0.5.zip [view]
Upload User: kjfoods
Upload Date: 2020-07-06
Package Size: 29949k
Code Size: 3k
Category:
midi program
Development Platform:
Unix_Linux
- /*****************************************************************************
- * mkv.cpp : matroska demuxer
- *****************************************************************************
- * Copyright (C) 2003-2004 the VideoLAN team
- * $Id: 853aee055735da82da1baf8f6b936445e6f7593c $
- *
- * Authors: Laurent Aimar <fenrir@via.ecp.fr>
- * Steve Lhomme <steve.lhomme@free.fr>
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- #include "util.hpp"
- /*****************************************************************************
- * Local prototypes
- *****************************************************************************/
- #ifdef HAVE_ZLIB_H
- block_t *block_zlib_decompress( vlc_object_t *p_this, block_t *p_in_block ) {
- int result, dstsize, n;
- unsigned char *dst;
- block_t *p_block;
- z_stream d_stream;
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
- d_stream.opaque = (voidpf)0;
- result = inflateInit(&d_stream);
- if( result != Z_OK )
- {
- msg_Dbg( p_this, "inflateInit() failed. Result: %d", result );
- return NULL;
- }
- d_stream.next_in = (Bytef *)p_in_block->p_buffer;
- d_stream.avail_in = p_in_block->i_buffer;
- n = 0;
- p_block = block_New( p_this, 0 );
- dst = NULL;
- do
- {
- n++;
- p_block = block_Realloc( p_block, 0, n * 1000 );
- dst = (unsigned char *)p_block->p_buffer;
- d_stream.next_out = (Bytef *)&dst[(n - 1) * 1000];
- d_stream.avail_out = 1000;
- result = inflate(&d_stream, Z_NO_FLUSH);
- if( ( result != Z_OK ) && ( result != Z_STREAM_END ) )
- {
- msg_Dbg( p_this, "Zlib decompression failed. Result: %d", result );
- return NULL;
- }
- }
- while( ( d_stream.avail_out == 0 ) && ( d_stream.avail_in != 0 ) &&
- ( result != Z_STREAM_END ) );
- dstsize = d_stream.total_out;
- inflateEnd( &d_stream );
- p_block = block_Realloc( p_block, 0, dstsize );
- p_block->i_buffer = dstsize;
- block_Release( p_in_block );
- return p_block;
- }
- #endif