1/*
2 * Copyright 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
17#ifndef NUPLAYER2_DRM_H_
18#define NUPLAYER2_DRM_H_
19
20#include <media/NdkMediaExtractor.h>
21#include <media/stagefright/foundation/ABuffer.h>
22
23#include <utils/String8.h>
24#include <utils/Vector.h>
25
26namespace android {
27
28    struct DrmUUID {
29        static const int UUID_SIZE = 16;
30
31        DrmUUID() {
32            memset(this->uuid, 0, sizeof(uuid));
33        }
34
35        // to allow defining Vector/KeyedVector of UUID type
36        DrmUUID(const DrmUUID &a) {
37            memcpy(this->uuid, a.uuid, sizeof(uuid));
38        }
39
40        // to allow defining Vector/KeyedVector of UUID type
41        DrmUUID(const uint8_t uuid_in[UUID_SIZE]) {
42            memcpy(this->uuid, uuid_in, sizeof(uuid));
43        }
44
45        const uint8_t *ptr() const {
46            return uuid;
47        }
48
49        String8 toHexString() const {
50            return arrayToHex(uuid, UUID_SIZE);
51        }
52
53        static String8 toHexString(const uint8_t uuid_in[UUID_SIZE]) {
54            return arrayToHex(uuid_in, UUID_SIZE);
55        }
56
57        static String8 arrayToHex(const uint8_t *array, int bytes) {
58            String8 result;
59            for (int i = 0; i < bytes; i++) {
60                result.appendFormat("%02x", array[i]);
61            }
62
63            return result;
64        }
65
66    protected:
67        uint8_t uuid[UUID_SIZE];
68    };
69
70
71    struct NuPlayer2Drm {
72
73        // static helpers - internal
74
75    protected:
76        static Vector<DrmUUID> parsePSSH(const void *pssh, size_t psshsize);
77        static Vector<DrmUUID> getSupportedDrmSchemes(const void *pssh, size_t psshsize);
78
79        // static helpers - public
80
81    public:
82        static sp<ABuffer> retrieveDrmInfo(const void *pssh, uint32_t psshsize);
83        static sp<ABuffer> retrieveDrmInfo(PsshInfo *);
84
85    };  // NuPlayer2Drm
86
87}   // android
88
89#endif     //NUPLAYER2_DRM_H_
90