xref: /OK3568_Linux_fs/external/mpp/utils/camera_source.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * Copyright 2015 Rockchip Electronics Co. LTD
3*4882a593Smuzhiyun  *
4*4882a593Smuzhiyun  * Licensed under the Apache License, Version 2.0 (the "License");
5*4882a593Smuzhiyun  * you may not use this file except in compliance with the License.
6*4882a593Smuzhiyun  * You may obtain a copy of the License at
7*4882a593Smuzhiyun  *
8*4882a593Smuzhiyun  *      http://www.apache.org/licenses/LICENSE-2.0
9*4882a593Smuzhiyun  *
10*4882a593Smuzhiyun  * Unless required by applicable law or agreed to in writing, software
11*4882a593Smuzhiyun  * distributed under the License is distributed on an "AS IS" BASIS,
12*4882a593Smuzhiyun  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13*4882a593Smuzhiyun  * See the License for the specific language governing permissions and
14*4882a593Smuzhiyun  * limitations under the License.
15*4882a593Smuzhiyun  */
16*4882a593Smuzhiyun 
17*4882a593Smuzhiyun #ifndef __CAMERA_SOURCE_H__
18*4882a593Smuzhiyun #define __CAMERA_SOURCE_H__
19*4882a593Smuzhiyun 
20*4882a593Smuzhiyun #include "mpp_frame.h"
21*4882a593Smuzhiyun 
22*4882a593Smuzhiyun typedef struct CamSource CamSource;
23*4882a593Smuzhiyun 
24*4882a593Smuzhiyun #ifdef __cplusplus
25*4882a593Smuzhiyun extern "C" {
26*4882a593Smuzhiyun #endif
27*4882a593Smuzhiyun 
28*4882a593Smuzhiyun // Create a new context to capture frames from <fname>. Returns NULL on error.
29*4882a593Smuzhiyun CamSource* camera_source_init(const char *device, RK_U32 bufcnt, RK_U32 width, RK_U32 height, MppFrameFormat fmt);
30*4882a593Smuzhiyun 
31*4882a593Smuzhiyun // Stop capturing and free a context.
32*4882a593Smuzhiyun MPP_RET camera_source_deinit(CamSource *ctx);
33*4882a593Smuzhiyun 
34*4882a593Smuzhiyun // Returns the next captured frame and its meta-data.
35*4882a593Smuzhiyun RK_S32 camera_source_get_frame(CamSource *ctx);
36*4882a593Smuzhiyun 
37*4882a593Smuzhiyun // Tells the kernel it's OK to overwrite a frame captured
38*4882a593Smuzhiyun MPP_RET camera_source_put_frame(CamSource *ctx, RK_S32 idx);
39*4882a593Smuzhiyun 
40*4882a593Smuzhiyun MppBuffer camera_frame_to_buf(CamSource *ctx, RK_S32 idx);
41*4882a593Smuzhiyun 
42*4882a593Smuzhiyun #ifdef __cplusplus
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun #endif
45*4882a593Smuzhiyun 
46*4882a593Smuzhiyun #endif /* __CAMERA_SOURCE_H__ */
47