* vlc_stream.h
*****************************************************************************
* Copyright (C) 1999-2004 VideoLAN
- * $Id: ninput.h 7930 2004-06-07 18:23:15Z fenrir $
+ * $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
VLC_EXPORT( stream_t *,__stream_DemuxNew, ( vlc_object_t *p_obj, char *psz_demux, es_out_t *out ) );
VLC_EXPORT( void, stream_DemuxSend, ( stream_t *s, block_t *p_block ) );
VLC_EXPORT( void, stream_DemuxDelete,( stream_t *s ) );
-
+#define stream_MemoryNew( a, b, c ) __stream_MemoryNew( VLC_OBJECT(a), b, c )
+VLC_EXPORT( stream_t *,__stream_MemoryNew, (vlc_object_t *p_obj, uint8_t *p_buffer, int64_t i_size ) );
+VLC_EXPORT( void, stream_MemoryDelete,( stream_t *s, vlc_bool_t b_free_buffer ) );
/**
* @}
*/
--- /dev/null
+/*****************************************************************************
+ * mem_stream.c
+ *****************************************************************************
+ * Copyright (C) 1999-2004 VideoLAN
+ * $Id: stream.c 9390 2004-11-22 09:56:48Z fenrir $
+ *
+ * Authors: Sigmund Augdal <sigmunau@idi.ntnu.no>
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ *****************************************************************************/
+
+#include <stdlib.h>
+#include <vlc/vlc.h>
+#include <vlc/input.h>
+
+#include "input_internal.h"
+
+struct stream_sys_t
+{
+ int64_t i_pos; /* Current reading offset */
+ int64_t i_size;
+ uint8_t *p_buffer;
+
+};
+
+static int AStreamReadMem( stream_t *, void *p_read, int i_read );
+static int AStreamPeekMem( stream_t *, uint8_t **pp_peek, int i_read );
+static int AStreamSeekMem( stream_t *s, int64_t i_pos );
+static int AStreamControl( stream_t *, int i_query, va_list );
+
+/****************************************************************************
+ * stream_MemoryNew: create a stream from a buffer
+ ****************************************************************************/
+stream_t *__stream_MemoryNew( vlc_object_t *p_this, uint8_t *p_buffer,
+ int64_t i_size )
+{
+ stream_t *s = vlc_object_create( p_this, VLC_OBJECT_STREAM );
+ stream_sys_t *p_sys;
+
+ if( !s )
+ return NULL;
+
+ s->p_sys = p_sys = malloc( sizeof( stream_sys_t ) );
+ p_sys->i_pos = 0;
+ p_sys->i_size = i_size;
+ p_sys->p_buffer = p_buffer;
+
+ s->pf_block = NULL;
+ s->pf_read = AStreamReadMem; /* Set up later */
+ s->pf_peek = AStreamPeekMem;
+ s->pf_control= AStreamControl;
+ vlc_object_attach( s, p_this );
+
+ return s;
+}
+
+void stream_MemoryDelete( stream_t *s, vlc_bool_t b_free_buffer )
+{
+ if( b_free_buffer )
+ {
+ free( s->p_sys->p_buffer );
+ }
+ free( s->p_sys );
+ vlc_object_destroy( s );
+}
+/****************************************************************************
+ * AStreamControl:
+ ****************************************************************************/
+static int AStreamControl( stream_t *s, int i_query, va_list args )
+{
+ stream_sys_t *p_sys = s->p_sys;
+
+ vlc_bool_t *p_bool;
+ int64_t *pi_64, i_64;
+ int i_int;
+
+ switch( i_query )
+ {
+ case STREAM_GET_SIZE:
+ pi_64 = (int64_t*)va_arg( args, int64_t * );
+ *pi_64 = p_sys->i_size;
+ break;
+
+ case STREAM_CAN_SEEK:
+ p_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
+ *p_bool = VLC_TRUE;
+ break;
+
+ case STREAM_CAN_FASTSEEK:
+ p_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
+ *p_bool = VLC_TRUE;
+ break;
+
+ case STREAM_GET_POSITION:
+ pi_64 = (int64_t*)va_arg( args, int64_t * );
+ *pi_64 = p_sys->i_pos;
+ break;
+
+ case STREAM_SET_POSITION:
+ i_64 = (int64_t)va_arg( args, int64_t );
+ p_sys->i_pos = i_64;
+
+ case STREAM_GET_MTU:
+ return VLC_EGENERIC;
+
+ case STREAM_CONTROL_ACCESS:
+ i_int = (int) va_arg( args, int );
+ msg_Err( s, "Hey, what are you thinking ?"
+ "DON'T USE STREAM_CONTROL_ACCESS !!!" );
+ return VLC_EGENERIC;
+
+ default:
+ msg_Err( s, "invalid stream_vaControl query=0x%x", i_query );
+ return VLC_EGENERIC;
+ }
+ return VLC_SUCCESS;
+}
+
+static int AStreamReadMem( stream_t *s, void *p_read, int i_read )
+{
+ stream_sys_t *p_sys = s->p_sys;
+ int i_res = __MIN( i_read, p_sys->i_size - p_sys->i_pos );
+ memcpy( p_read, p_sys->p_buffer + p_sys->i_pos, i_res );
+ p_sys->i_pos += i_res;
+ return i_res;
+}
+
+static int AStreamPeekMem( stream_t *s, uint8_t **pp_peek, int i_read )
+{
+ stream_sys_t *p_sys = s->p_sys;
+ int i_res = __MIN( i_read, p_sys->i_size - p_sys->i_pos );
+ *pp_peek = p_sys->p_buffer + p_sys->i_pos;
+ return i_res;
+}
+
+static int AStreamSeekMem( stream_t *s, int64_t i_pos )
+{
+ int64_t i_new_pos;
+ i_new_pos = __MAX( i_pos, 0 );
+ i_new_pos = __MIN( i_new_pos, s->p_sys->i_size );
+ s->p_sys->i_pos = i_new_pos;
+}