1 /*
2 * Copyright (C) 2017 The Android Open Source Project
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 //#define LOG_NDEBUG 0
17 #define LOG_TAG "DataSource"
18
19
20 #include <datasource/DataSourceFactory.h>
21 #include <datasource/DataURISource.h>
22 #include <datasource/HTTPBase.h>
23 #include <datasource/FileSource.h>
24 #include <datasource/MediaHTTP.h>
25 #include <datasource/NuCachedSource2.h>
26 #include <media/MediaHTTPConnection.h>
27 #include <media/MediaHTTPService.h>
28 #include <utils/String8.h>
29
30 namespace android {
31
32 // static
33 sp<DataSourceFactory> DataSourceFactory::sInstance;
34 // static
35 Mutex DataSourceFactory::sInstanceLock;
36
37 // static
getInstance()38 sp<DataSourceFactory> DataSourceFactory::getInstance() {
39 Mutex::Autolock l(sInstanceLock);
40 if (!sInstance) {
41 sInstance = new DataSourceFactory();
42 }
43 return sInstance;
44 }
45
CreateFromURI(const sp<MediaHTTPService> & httpService,const char * uri,const KeyedVector<String8,String8> * headers,String8 * contentType,HTTPBase * httpSource)46 sp<DataSource> DataSourceFactory::CreateFromURI(
47 const sp<MediaHTTPService> &httpService,
48 const char *uri,
49 const KeyedVector<String8, String8> *headers,
50 String8 *contentType,
51 HTTPBase *httpSource) {
52 if (contentType != NULL) {
53 *contentType = "";
54 }
55
56 sp<DataSource> source;
57 if (!strncasecmp("file://", uri, 7)) {
58 source = CreateFileSource(uri + 7);
59 } else if (!strncasecmp("http://", uri, 7) || !strncasecmp("https://", uri, 8)) {
60 if (httpService == NULL) {
61 ALOGE("Invalid http service!");
62 return NULL;
63 }
64
65 sp<HTTPBase> mediaHTTP = httpSource;
66 if (mediaHTTP == NULL) {
67 mediaHTTP = static_cast<HTTPBase *>(CreateMediaHTTP(httpService).get());
68 if (mediaHTTP == NULL) {
69 return NULL;
70 }
71 }
72
73 String8 cacheConfig;
74 bool disconnectAtHighwatermark = false;
75 KeyedVector<String8, String8> nonCacheSpecificHeaders;
76 if (headers != NULL) {
77 nonCacheSpecificHeaders = *headers;
78 NuCachedSource2::RemoveCacheSpecificHeaders(
79 &nonCacheSpecificHeaders,
80 &cacheConfig,
81 &disconnectAtHighwatermark);
82 }
83
84 if (mediaHTTP->connect(uri, &nonCacheSpecificHeaders) != OK) {
85 ALOGE("Failed to connect http source!");
86 return NULL;
87 }
88
89 if (contentType != NULL) {
90 *contentType = mediaHTTP->getMIMEType();
91 }
92
93 source = NuCachedSource2::Create(
94 mediaHTTP,
95 cacheConfig.isEmpty() ? NULL : cacheConfig.string(),
96 disconnectAtHighwatermark);
97 } else if (!strncasecmp("data:", uri, 5)) {
98 source = DataURISource::Create(uri);
99 } else {
100 // Assume it's a filename.
101 source = CreateFileSource(uri);
102 }
103
104 if (source == NULL || source->initCheck() != OK) {
105 return NULL;
106 }
107
108 return source;
109 }
110
CreateFromFd(int fd,int64_t offset,int64_t length)111 sp<DataSource> DataSourceFactory::CreateFromFd(int fd, int64_t offset, int64_t length) {
112 sp<FileSource> source = new FileSource(fd, offset, length);
113 return source->initCheck() != OK ? nullptr : source;
114 }
115
CreateMediaHTTP(const sp<MediaHTTPService> & httpService)116 sp<DataSource> DataSourceFactory::CreateMediaHTTP(const sp<MediaHTTPService> &httpService) {
117 if (httpService == NULL) {
118 return NULL;
119 }
120
121 sp<MediaHTTPConnection> conn = httpService->makeHTTPConnection();
122 if (conn == NULL) {
123 ALOGE("Failed to make http connection from http service!");
124 return NULL;
125 } else {
126 return new MediaHTTP(conn);
127 }
128 }
129
CreateFileSource(const char * uri)130 sp<DataSource> DataSourceFactory::CreateFileSource(const char *uri) {
131 return new FileSource(uri);
132 }
133
134 } // namespace android
135