1 /*
2  * Copyright (C) 2019 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 "NativeMediaCommon"
18 #include <log/log.h>
19 
20 #include <cstdio>
21 #include <cstring>
22 #include <utility>
23 
24 #include "NativeMediaCommon.h"
25 
26 /* TODO(b/153592281)
27  * Note: constants used by the native media tests but not available in media ndk api
28  */
29 const char* AMEDIA_MIMETYPE_VIDEO_VP8 = "video/x-vnd.on2.vp8";
30 const char* AMEDIA_MIMETYPE_VIDEO_VP9 = "video/x-vnd.on2.vp9";
31 const char* AMEDIA_MIMETYPE_VIDEO_AV1 = "video/av01";
32 const char* AMEDIA_MIMETYPE_VIDEO_AVC = "video/avc";
33 const char* AMEDIA_MIMETYPE_VIDEO_HEVC = "video/hevc";
34 const char* AMEDIA_MIMETYPE_VIDEO_MPEG4 = "video/mp4v-es";
35 const char* AMEDIA_MIMETYPE_VIDEO_H263 = "video/3gpp";
36 
37 const char* AMEDIA_MIMETYPE_AUDIO_AMR_NB = "audio/3gpp";
38 const char* AMEDIA_MIMETYPE_AUDIO_AMR_WB = "audio/amr-wb";
39 const char* AMEDIA_MIMETYPE_AUDIO_AAC = "audio/mp4a-latm";
40 const char* AMEDIA_MIMETYPE_AUDIO_FLAC = "audio/flac";
41 const char* AMEDIA_MIMETYPE_AUDIO_VORBIS = "audio/vorbis";
42 const char* AMEDIA_MIMETYPE_AUDIO_OPUS = "audio/opus";
43 const char* AMEDIA_MIMETYPE_AUDIO_RAW = "audio/raw";
44 
45 /* TODO(b/153592281) */
46 const char* TBD_AMEDIACODEC_PARAMETER_KEY_REQUEST_SYNC_FRAME = "request-sync";
47 const char* TBD_AMEDIACODEC_PARAMETER_KEY_VIDEO_BITRATE = "video-bitrate";
48 const char* COMPATIBLE_AMEDIAFORMAT_KEY_MAX_B_FRAMES = "max-bframes";
49 const char* TBD_AMEDIAFORMAT_KEY_BIT_RATE_MODE = "bitrate-mode";
50 
51 // NDK counterpart of RMS_ERROR_TOLERANCE of CodecDecoderTest class
52 const float kRmsErrorTolerance = 1.05f;
53 
54 // NDK counterpart of Q_DEQ_TIMEOUT_US and RETRY_LIMIT of CodecTestBase class
55 const long kQDeQTimeOutUs = 5000; // block at most 5ms while looking for io buffers
56 const int kRetryLimit = 100; // max poll counter before test aborts and returns error
57 
isCSDIdentical(AMediaFormat * refFormat,AMediaFormat * testFormat)58 bool isCSDIdentical(AMediaFormat* refFormat, AMediaFormat* testFormat) {
59     for (int i = 0;; i++) {
60         std::pair<void*, size_t> refCsd;
61         std::pair<void*, size_t> testCsd;
62         char name[16];
63         snprintf(name, sizeof(name), "csd-%d", i);
64         bool hasRefCSD = AMediaFormat_getBuffer(refFormat, name, &refCsd.first, &refCsd.second);
65         bool hasTestCSD = AMediaFormat_getBuffer(testFormat, name, &testCsd.first, &testCsd.second);
66         if (hasRefCSD != hasTestCSD) {
67             ALOGW("mismatch, ref fmt has CSD %d, test fmt has CSD %d", hasRefCSD, hasTestCSD);
68             return false;
69         }
70         if (hasRefCSD) {
71             if (refCsd.second != testCsd.second) {
72                 ALOGW("ref/test %s buffer sizes are not identical %zu/%zu", name, refCsd.second,
73                       testCsd.second);
74                 return false;
75             }
76             if (memcmp(refCsd.first, testCsd.first, refCsd.second)) {
77                 ALOGW("ref/test %s buffers are not identical", name);
78                 return false;
79             }
80         } else break;
81     }
82     return true;
83 }
84 
85 template <class T>
flattenField(uint8_t * buffer,int * pos,T value)86 void flattenField(uint8_t* buffer, int* pos, T value) {
87     uint8_t* ptr = (buffer + *pos);
88     for (int i = sizeof(T) - 1; i >= 0; i--) {
89         *ptr++ = (uint8_t)((value >> (i * 8)) & 0xff);
90     }
91     *pos += sizeof(T);
92 }
93 
94 template void flattenField<int32_t>(uint8_t* buffer, int* pos, int32_t value);
95 template void flattenField<int64_t>(uint8_t* buffer, int* pos, int64_t value);
96 
isFormatSimilar(AMediaFormat * refFormat,AMediaFormat * testFormat)97 bool isFormatSimilar(AMediaFormat* refFormat, AMediaFormat* testFormat) {
98     const char *refMediaType = nullptr, *testMediaType = nullptr;
99     int64_t refKeyDuration, testKeyDuration;
100     bool hasRefMediaType = AMediaFormat_getString(refFormat, AMEDIAFORMAT_KEY_MIME, &refMediaType);
101     if (!hasRefMediaType) return false;
102     bool hasTestMediaType =
103             AMediaFormat_getString(testFormat, AMEDIAFORMAT_KEY_MIME, &testMediaType);
104     if (!hasTestMediaType) return false;
105     if (strcmp(refMediaType, testMediaType) != 0) return false;
106     bool hasRefKeyDuration =
107             AMediaFormat_getInt64(refFormat, AMEDIAFORMAT_KEY_DURATION, &refKeyDuration);
108     if (!hasRefKeyDuration) return false;
109     bool hasTestKeyDuration =
110             AMediaFormat_getInt64(testFormat, AMEDIAFORMAT_KEY_DURATION, &testKeyDuration);
111     if (!hasTestKeyDuration) return false;
112     if (refKeyDuration != testKeyDuration) {
113         ALOGW("Duration mismatches ref / test = %lld / %lld", (long long)refKeyDuration,
114               (long long)testKeyDuration);
115         // TODO (b/163477410)(b/163478168)
116 //        return false;
117     }
118     if (!isCSDIdentical(refFormat, testFormat)) return false;
119     if (!strncmp(refMediaType, "audio/", strlen("audio/"))) {
120         int32_t refSampleRate, testSampleRate, refNumChannels, testNumChannels;
121         bool hasRefSampleRate =
122                 AMediaFormat_getInt32(refFormat, AMEDIAFORMAT_KEY_SAMPLE_RATE, &refSampleRate);
123         if (!hasRefSampleRate) return false;
124         bool hasTestSampleRate =
125                 AMediaFormat_getInt32(testFormat, AMEDIAFORMAT_KEY_SAMPLE_RATE, &testSampleRate);
126         if (!hasTestSampleRate) return false;
127         if (refSampleRate != testSampleRate) return false;
128         bool hasRefNumChannels =
129                 AMediaFormat_getInt32(refFormat, AMEDIAFORMAT_KEY_CHANNEL_COUNT, &refNumChannels);
130         if (!hasRefNumChannels) return false;
131         bool hasTestNumChannels =
132                 AMediaFormat_getInt32(testFormat, AMEDIAFORMAT_KEY_CHANNEL_COUNT, &testNumChannels);
133         if (!hasTestNumChannels) return false;
134         if (refNumChannels != testNumChannels) return false;
135     } else if (!strncmp(refMediaType, "video/", strlen("video/"))) {
136         int32_t refWidth, testWidth, refHeight, testHeight;
137         bool hasRefWidth = AMediaFormat_getInt32(refFormat, AMEDIAFORMAT_KEY_WIDTH, &refWidth);
138         if (!hasRefWidth) return false;
139         bool hasTestWidth = AMediaFormat_getInt32(testFormat, AMEDIAFORMAT_KEY_WIDTH, &testWidth);
140         if (!hasTestWidth) return false;
141         if (refWidth != testWidth) return false;
142         bool hasRefHeight = AMediaFormat_getInt32(refFormat, AMEDIAFORMAT_KEY_HEIGHT, &refHeight);
143         if (!hasRefHeight) return false;
144         bool hasTestHeight =
145                 AMediaFormat_getInt32(testFormat, AMEDIAFORMAT_KEY_HEIGHT, &testHeight);
146         if (!hasTestHeight) return false;
147         if (refHeight != testHeight) return false;
148     }
149     return true;
150 }
151 
isMediaTypeOutputUnAffectedBySeek(const char * mediaType)152 bool isMediaTypeOutputUnAffectedBySeek(const char* mediaType) {
153     if (strcmp(mediaType, AMEDIA_MIMETYPE_AUDIO_FLAC) == 0) return true;
154     if (strcmp(mediaType, AMEDIA_MIMETYPE_AUDIO_RAW) == 0) return true;
155     if (strncmp(mediaType, "video/", strlen("video/")) == 0) return true;
156     return false;
157 }
158 
deSerializeMediaFormat(const char * msg,const char * separator)159 AMediaFormat* deSerializeMediaFormat(const char* msg, const char* separator) {
160     // constants to be kept in sync with definitions at MediaFormat.java
161     static const int TYPE_INTEGER = 1;
162     static const int TYPE_FLOAT = 3;
163     static const int TYPE_STRING = 4;
164     std::string limiter{separator};
165     std::string fmtMsg{msg};
166     AMediaFormat* fmt = AMediaFormat_new();
167     if (fmt == nullptr) {
168         ALOGE("no format received");
169         return nullptr;
170     }
171     auto start = 0u;
172     auto end = fmtMsg.find(limiter);
173     std::string keyStr, valueTypeStr, valueStr;
174     for (; end != std::string::npos;) {
175         // key
176         keyStr = fmtMsg.substr(start, end - start);
177         start = end + limiter.length();
178         end = fmtMsg.find(limiter, start);
179         if (end == std::string::npos) {
180             ALOGE("incomplete media format received %s", msg);
181             AMediaFormat_delete(fmt);
182             return nullptr;
183         }
184         // value type
185         valueTypeStr = fmtMsg.substr(start, end - start);
186         start = end + limiter.length();
187         end = fmtMsg.find(limiter, start);
188         if (end == std::string::npos) {
189             ALOGE("incomplete media format received %s", msg);
190             AMediaFormat_delete(fmt);
191             return nullptr;
192         }
193 
194         // value
195         valueStr = fmtMsg.substr(start, end - start);
196         start = end + limiter.length();
197         end = fmtMsg.find(limiter, start);
198 
199         auto valueType = std::stoi(valueTypeStr);
200         if (valueType == TYPE_INTEGER) {
201             AMediaFormat_setInt32(fmt, keyStr.c_str(), std::stoi(valueStr));
202         } else if (valueType == TYPE_FLOAT) {
203             AMediaFormat_setFloat(fmt, keyStr.c_str(), std::stof(valueStr));
204         } else if (valueType == TYPE_STRING) {
205             AMediaFormat_setString(fmt, keyStr.c_str(), valueStr.c_str());
206         } else {
207             ALOGE("unrecognized type for key %s", keyStr.c_str());
208             AMediaFormat_delete(fmt);
209             return nullptr;
210         }
211     }
212     return fmt;
213 }
214