/*****************************************************************************
* vlc_block_helper.h: Helper functions for data blocks management.
*****************************************************************************
- * Copyright (C) 2003 VideoLAN
+ * Copyright (C) 2003 the VideoLAN team
* $Id$
*
* Authors: Gildas Bazin <gbazin@netcourrier.com>
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-#ifndef _VLC_BLOCK_HELPER_H
-#define _VLC_BLOCK_HELPER_H 1
+#ifndef VLC_BLOCK_HELPER_H
+#define VLC_BLOCK_HELPER_H 1
+
+#include <vlc_block.h>
typedef struct block_bytestream_t
{
block_t *p_chain;
block_t *p_block;
- int i_offset;
+ size_t i_offset;
} block_bytestream_t;
-#define block_BytestreamInit( a ) __block_BytestreamInit( VLC_OBJECT(a) )
-
/*****************************************************************************
* block_bytestream_t management
*****************************************************************************/
-static inline block_bytestream_t __block_BytestreamInit( vlc_object_t *p_obj )
+LIBVLC_USED
+static inline block_bytestream_t block_BytestreamInit( void )
{
block_bytestream_t bytestream;
p_bytestream->p_chain = p_bytestream->p_block = NULL;
}
+/**
+ * It flush all data (read and unread) from a block_bytestream_t.
+ */
+static inline void block_BytestreamEmpty( block_bytestream_t *p_bytestream )
+{
+ block_BytestreamRelease( p_bytestream );
+
+ *p_bytestream = block_BytestreamInit();
+}
+
+/**
+ * It flushes all already read data from a block_bytestream_t.
+ */
static inline void block_BytestreamFlush( block_bytestream_t *p_bytestream )
{
while( p_bytestream->p_chain != p_bytestream->p_block )
if( !p_bytestream->p_block ) p_bytestream->p_block = p_block;
}
+LIBVLC_USED
static inline block_t *block_BytestreamPop( block_bytestream_t *p_bytestream )
{
block_t *p_block;
}
static inline int block_WaitBytes( block_bytestream_t *p_bytestream,
- int i_data )
+ size_t i_data )
{
block_t *p_block;
- int i_offset, i_copy, i_size;
+ size_t i_offset, i_copy, i_size;
/* Check we have that much data */
i_offset = p_bytestream->i_offset;
}
static inline int block_SkipBytes( block_bytestream_t *p_bytestream,
- int i_data )
+ size_t i_data )
{
block_t *p_block;
- int i_offset, i_copy;
+ size_t i_offset, i_copy;
/* Check we have that much data */
i_offset = p_bytestream->i_offset;
}
static inline int block_PeekBytes( block_bytestream_t *p_bytestream,
- uint8_t *p_data, int i_data )
+ uint8_t *p_data, size_t i_data )
{
block_t *p_block;
- int i_offset, i_copy, i_size;
+ size_t i_offset, i_copy, i_size;
/* Check we have that much data */
i_offset = p_bytestream->i_offset;
}
static inline int block_GetBytes( block_bytestream_t *p_bytestream,
- uint8_t *p_data, int i_data )
+ uint8_t *p_data, size_t i_data )
{
block_t *p_block;
- int i_offset, i_copy, i_size;
+ size_t i_offset, i_copy, i_size;
/* Check we have that much data */
i_offset = p_bytestream->i_offset;
}
static inline int block_PeekOffsetBytes( block_bytestream_t *p_bytestream,
- int i_peek_offset, uint8_t *p_data, int i_data )
+ size_t i_peek_offset, uint8_t *p_data, size_t i_data )
{
block_t *p_block;
- int i_offset, i_copy, i_size;
+ size_t i_offset, i_copy, i_size;
/* Check we have that much data */
i_offset = p_bytestream->i_offset;
}
static inline int block_FindStartcodeFromOffset(
- block_bytestream_t *p_bytestream, int *pi_offset,
- uint8_t *p_startcode, int i_startcode_length )
+ block_bytestream_t *p_bytestream, size_t *pi_offset,
+ const uint8_t *p_startcode, int i_startcode_length )
{
block_t *p_block, *p_block_backup = 0;
- int i_size, i_offset, i_offset_backup = 0;
+ int i_size = 0;
+ size_t i_offset, i_offset_backup = 0;
int i_caller_offset_backup = 0, i_match;
/* Find the right place */
/* Begin the search.
* We first look for an occurrence of the 1st startcode byte and
* if found, we do a more thorough check. */
- i_size = p_block->i_buffer + i_size;
+ i_size += p_block->i_buffer;
*pi_offset -= i_size;
i_match = 0;
for( ; p_block != NULL; p_block = p_block->p_next )