path: root/hwc2/common/utils/AmVideo.cpp (plain)
blob: 89e0fbcd25b9f9d4d2ad2ac699e27934fbd4aac9

1	/*
2	// Copyright (c) 2017 Amlogic
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	#define LOG_TAG "AmVideo"
19	//#define LOG_NDEBUG 0
20	#include <cutils/log.h>
21
22	#include <AmVideo.h>
23	#include <fcntl.h>
24	#include <sys/ioctl.h>
25	#include <errno.h>
26
27	//#define AMVIDEO_DEBUG
28
29	using namespace android;
30
31	#define AM_VIDEO_DEV "/dev/amvideo"
32
33	#define AMSTREAM_IOC_MAGIC 'S'
34	#define AMSTREAM_IOC_GLOBAL_GET_VIDEO_OUTPUT _IOR(AMSTREAM_IOC_MAGIC, 0x21, int)
35	#define AMSTREAM_IOC_GLOBAL_SET_VIDEO_OUTPUT _IOW(AMSTREAM_IOC_MAGIC, 0x22, int)
36	#define AMSTREAM_IOC_GET_VIDEO_DISABLE _IOR((AMSTREAM_IOC_MAGIC), 0x48, int)
37	#define AMSTREAM_IOC_SET_VIDEO_DISABLE _IOW((AMSTREAM_IOC_MAGIC), 0x49, int)
38	#define AMSTREAM_IOC_GET_OMX_INFO _IOR((AMSTREAM_IOC_MAGIC), 0xb2, unsigned int)
39
40	AmVideo* AmVideo::mInstance = NULL;
41	Mutex AmVideo::mLock;
42
43	AmVideo::AmVideo() {
44	mDevFd = open(AM_VIDEO_DEV, O_RDWR | O_NONBLOCK);
45	if (mDevFd < 0) {
46	ALOGE("Open %s Failed. ", AM_VIDEO_DEV);
47	}
48
49	if (getVideoPresent(mVideoPresent) != 0) {
50	ALOGE("Get video mute failed.");
51	mVideoPresent = true;
52	}
53	}
54
55	AmVideo::~AmVideo() {
56	if (mDevFd >= 0) {
57	close(mDevFd);
58	mDevFd = -1;
59	}
60	}
61
62	AmVideo* AmVideo::getInstance() {
63	if (mInstance == NULL) {
64	Mutex::Autolock _l(mLock);
65	if (mInstance == NULL) {
66	mInstance = new AmVideo();
67	}
68	}
69
70	return mInstance;
71	}
72
73	int AmVideo::presentVideo(bool bPresent) {
74	if (mDevFd < 0)
75	return -EBADF;
76
77	if (mVideoPresent != bPresent) {
78	ALOGD("muteVideo to %d", bPresent);
79	uint32_t val = bPresent ? 1 : 0;
80	if (ioctl(mDevFd, AMSTREAM_IOC_GLOBAL_SET_VIDEO_OUTPUT, val) != 0) {
81	ALOGE("AMSTREAM_SET_VIDEO_OUTPUT ioctl (%d) return(%d)", bPresent, errno);
82	return -EINVAL;
83	}
84	mVideoPresent = bPresent;
85	} else {
86	#ifdef AMVIDEO_DEBUG
87	bool val = true;
88	getVideoPresent(val);
89	if (mVideoPresent != val) {
90	ALOGE("presentVideo (%d) vs (%d)", mVideoPresent, val);
91	}
92	ALOGD("Already set video to (%d)", bPresent);
93	#endif
94	}
95
96	return 0;
97	}
98
99	int AmVideo::getVideoPresent(bool& output) {
100	if (mDevFd < 0)
101	return -EBADF;
102
103	uint32_t val = 1;
104	if (ioctl(mDevFd, AMSTREAM_IOC_GLOBAL_GET_VIDEO_OUTPUT, &val) != 0) {
105	ALOGE("AMSTREAM_GET_VIDEO_OUTPUT ioctl fail(%d)", errno);
106	return -EINVAL;
107	}
108
109	output = (val ==0) ? false : true;
110	return 0;
111	}
112
113	int AmVideo::getvideodisable(int* mode) {
114	if (mDevFd < 0)
115	return -EBADF;
116
117	int ret = ioctl(mDevFd, AMSTREAM_IOC_GET_VIDEO_DISABLE, mode);
118	if (ret < 0) {
119	ALOGE("getvideodisable error, ret=%d", ret);
120	return ret;
121	}
122	return 0;
123	}
124
125	int AmVideo::setvideodisable(int mode) {
126	if (mDevFd < 0)
127	return -EBADF;
128	int ret = ioctl(mDevFd, AMSTREAM_IOC_SET_VIDEO_DISABLE, &mode);
129	if (ret < 0) {
130	ALOGE("setvideodisable error, ret=%d", ret);
131	return ret;
132	}
133	return 0;
134	}
135
136	int AmVideo::getOmxKeepLastFrame(unsigned int *keepLastFrame) {
137	if (mDevFd < 0)
138	return -EBADF;
139
140	unsigned long omx_info = 0;
141	int ret = ioctl(mDevFd, AMSTREAM_IOC_GET_OMX_INFO, &omx_info);
142	if (ret < 0) {
143	ALOGE("get omx info error, ret =%d", ret);
144	*keepLastFrame = 0;
145	return ret;
146	} else {
147	*keepLastFrame = omx_info & 0x1; //omx_info bit0: keep last frmame
148	}
149	//ALOGV("video layer keepLastFrame %d", *keepLastFrame);
150	return 0;
151
152	}
153
154