stream.c revision 41050cdb033641ddf26831d9272c0930f7b40a2d 
1/*
2 ** Copyright 2003-2010, VisualOn, Inc.
3 **
4 ** Licensed under the Apache License, Version 2.0 (the "License");
5 ** you may not use this file except in compliance with the License.
6 ** You may obtain a copy of the License at
7 **
8 **     http://www.apache.org/licenses/LICENSE-2.0
9 **
10 ** Unless required by applicable law or agreed to in writing, software
11 ** distributed under the License is distributed on an "AS IS" BASIS,
12 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 ** See the License for the specific language governing permissions and
14 ** limitations under the License.
15 */
16
17/***********************************************************************
18*       File: stream.c                                                 *
19*                                                                      *
20*       Description: VOME API Buffer Operator Implement Code           *
21*                                                                      *
22************************************************************************/
23
24#include "stream.h"
25
26void voAWB_InitFrameBuffer(FrameStream *stream)
27{
28	stream->set_ptr = NULL;
29	stream->frame_ptr_bk = stream->frame_ptr;
30	stream->set_len = 0;
31	stream->framebuffer_len = 0;
32	stream->frame_storelen = 0;
33}
34
35void voAWB_UpdateFrameBuffer(
36		FrameStream *stream,
37		VO_MEM_OPERATOR *pMemOP
38		)
39{
40	int  len;
41	len  = MIN(Frame_Maxsize - stream->frame_storelen, stream->set_len);
42	pMemOP->Copy(VO_INDEX_ENC_AMRWB, stream->frame_ptr_bk + stream->frame_storelen , stream->set_ptr, len);
43	stream->set_len -= len;
44	stream->set_ptr += len;
45	stream->framebuffer_len = stream->frame_storelen + len;
46	stream->frame_ptr = stream->frame_ptr_bk;
47	stream->used_len += len;
48}
49
50void voAWB_FlushFrameBuffer(FrameStream *stream)
51{
52	stream->set_ptr = NULL;
53	stream->frame_ptr_bk = stream->frame_ptr;
54	stream->set_len = 0;
55	stream->framebuffer_len = 0;
56	stream->frame_storelen = 0;
57}
58
59