Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 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 | package android.cts.util; |
| 17 | |
| 18 | import android.content.Context; |
| 19 | import android.content.res.AssetFileDescriptor; |
Ronghua Wu | 2cf1afc | 2015-06-26 17:59:26 -0700 | [diff] [blame] | 20 | import android.media.MediaCodec; |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 21 | import android.media.MediaCodecInfo; |
Ronghua Wu | 2cf1afc | 2015-06-26 17:59:26 -0700 | [diff] [blame] | 22 | import android.media.MediaCodecInfo.CodecCapabilities; |
| 23 | import android.media.MediaCodecInfo.VideoCapabilities; |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 24 | import android.media.MediaCodecList; |
| 25 | import android.media.MediaExtractor; |
| 26 | import android.media.MediaFormat; |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 27 | import android.net.Uri; |
Ronghua Wu | 2cf1afc | 2015-06-26 17:59:26 -0700 | [diff] [blame] | 28 | import android.util.Range; |
Ronghua Wu | 6352ed0 | 2015-07-23 13:27:22 -0700 | [diff] [blame] | 29 | |
| 30 | import com.android.cts.util.ReportLog; |
| 31 | import com.android.cts.util.ResultType; |
| 32 | import com.android.cts.util.ResultUnit; |
| 33 | |
Lajos Molnar | 6557fb7 | 2014-11-20 16:07:03 -0800 | [diff] [blame] | 34 | import java.lang.reflect.Method; |
| 35 | import static java.lang.reflect.Modifier.isPublic; |
| 36 | import static java.lang.reflect.Modifier.isStatic; |
Ronghua Wu | 6352ed0 | 2015-07-23 13:27:22 -0700 | [diff] [blame] | 37 | import java.util.Arrays; |
Lajos Molnar | 6557fb7 | 2014-11-20 16:07:03 -0800 | [diff] [blame] | 38 | import java.util.Map; |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 39 | import android.util.Log; |
| 40 | |
| 41 | import java.io.IOException; |
| 42 | |
| 43 | public class MediaUtils { |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 44 | private static final String TAG = "MediaUtils"; |
| 45 | |
| 46 | private static final int ALL_AV_TRACKS = -1; |
| 47 | |
| 48 | private static final MediaCodecList sMCL = new MediaCodecList(MediaCodecList.REGULAR_CODECS); |
| 49 | |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 50 | /** |
Lajos Molnar | 46389ea | 2015-02-03 16:55:26 -0800 | [diff] [blame] | 51 | * Returns the test name (heuristically). |
Lajos Molnar | 6557fb7 | 2014-11-20 16:07:03 -0800 | [diff] [blame] | 52 | * |
| 53 | * Since it uses heuristics, this method has only been verified for media |
Lajos Molnar | 46389ea | 2015-02-03 16:55:26 -0800 | [diff] [blame] | 54 | * tests. This centralizes the way to signal errors during a test. |
Lajos Molnar | 6557fb7 | 2014-11-20 16:07:03 -0800 | [diff] [blame] | 55 | */ |
Lajos Molnar | 46389ea | 2015-02-03 16:55:26 -0800 | [diff] [blame] | 56 | public static String getTestName() { |
Lajos Molnar | 6557fb7 | 2014-11-20 16:07:03 -0800 | [diff] [blame] | 57 | int bestScore = -1; |
| 58 | String testName = "test???"; |
| 59 | Map<Thread, StackTraceElement[]> traces = Thread.getAllStackTraces(); |
| 60 | for (Map.Entry<Thread, StackTraceElement[]> entry : traces.entrySet()) { |
| 61 | StackTraceElement[] stack = entry.getValue(); |
| 62 | for (int index = 0; index < stack.length; ++index) { |
| 63 | // method name must start with "test" |
| 64 | String methodName = stack[index].getMethodName(); |
| 65 | if (!methodName.startsWith("test")) { |
| 66 | continue; |
| 67 | } |
| 68 | |
| 69 | int score = 0; |
| 70 | // see if there is a public non-static void method that takes no argument |
| 71 | Class<?> clazz; |
| 72 | try { |
| 73 | clazz = Class.forName(stack[index].getClassName()); |
| 74 | ++score; |
| 75 | for (final Method method : clazz.getDeclaredMethods()) { |
| 76 | if (method.getName().equals(methodName) |
| 77 | && isPublic(method.getModifiers()) |
| 78 | && !isStatic(method.getModifiers()) |
| 79 | && method.getParameterTypes().length == 0 |
| 80 | && method.getReturnType().equals(Void.TYPE)) { |
| 81 | ++score; |
| 82 | break; |
| 83 | } |
| 84 | } |
| 85 | if (score == 1) { |
| 86 | // if we could read the class, but method is not public void, it is |
| 87 | // not a candidate |
| 88 | continue; |
| 89 | } |
| 90 | } catch (ClassNotFoundException e) { |
| 91 | } |
| 92 | |
| 93 | // even if we cannot verify the method signature, there are signals in the stack |
| 94 | |
| 95 | // usually test method is invoked by reflection |
| 96 | int depth = 1; |
| 97 | while (index + depth < stack.length |
| 98 | && stack[index + depth].getMethodName().equals("invoke") |
| 99 | && stack[index + depth].getClassName().equals( |
| 100 | "java.lang.reflect.Method")) { |
| 101 | ++depth; |
| 102 | } |
| 103 | if (depth > 1) { |
| 104 | ++score; |
| 105 | // and usually test method is run by runMethod method in android.test package |
| 106 | if (index + depth < stack.length) { |
| 107 | if (stack[index + depth].getClassName().startsWith("android.test.")) { |
| 108 | ++score; |
| 109 | } |
| 110 | if (stack[index + depth].getMethodName().equals("runMethod")) { |
| 111 | ++score; |
| 112 | } |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | if (score > bestScore) { |
| 117 | bestScore = score; |
| 118 | testName = methodName; |
| 119 | } |
| 120 | } |
| 121 | } |
Lajos Molnar | 46389ea | 2015-02-03 16:55:26 -0800 | [diff] [blame] | 122 | return testName; |
| 123 | } |
Lajos Molnar | 6557fb7 | 2014-11-20 16:07:03 -0800 | [diff] [blame] | 124 | |
Lajos Molnar | 46389ea | 2015-02-03 16:55:26 -0800 | [diff] [blame] | 125 | /** |
| 126 | * Finds test name (heuristically) and prints out standard skip message. |
| 127 | * |
| 128 | * Since it uses heuristics, this method has only been verified for media |
| 129 | * tests. This centralizes the way to signal a skipped test. |
| 130 | */ |
| 131 | public static void skipTest(String tag, String reason) { |
| 132 | Log.i(tag, "SKIPPING " + getTestName() + "(): " + reason); |
Lajos Molnar | 6557fb7 | 2014-11-20 16:07:03 -0800 | [diff] [blame] | 133 | } |
| 134 | |
| 135 | /** |
| 136 | * Finds test name (heuristically) and prints out standard skip message. |
| 137 | * |
| 138 | * Since it uses heuristics, this method has only been verified for media |
| 139 | * tests. This centralizes the way to signal a skipped test. |
| 140 | */ |
| 141 | public static void skipTest(String reason) { |
| 142 | skipTest(TAG, reason); |
| 143 | } |
| 144 | |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 145 | public static boolean check(boolean result, String message) { |
| 146 | if (!result) { |
| 147 | skipTest(message); |
| 148 | } |
| 149 | return result; |
| 150 | } |
| 151 | |
Masanori OGINO | dc97db7 | 2015-07-28 16:14:08 +0900 | [diff] [blame] | 152 | public static MediaCodec getDecoder(MediaFormat format) { |
| 153 | String decoder = sMCL.findDecoderForFormat(format); |
| 154 | if (decoder != null) { |
| 155 | try { |
| 156 | return MediaCodec.createByCodecName(decoder); |
| 157 | } catch (IOException e) { |
| 158 | } |
| 159 | } |
| 160 | return null; |
| 161 | } |
| 162 | |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 163 | public static boolean canDecode(MediaFormat format) { |
| 164 | if (sMCL.findDecoderForFormat(format) == null) { |
| 165 | Log.i(TAG, "no decoder for " + format); |
| 166 | return false; |
| 167 | } |
| 168 | return true; |
| 169 | } |
| 170 | |
Ronghua Wu | 2cf1afc | 2015-06-26 17:59:26 -0700 | [diff] [blame] | 171 | public static boolean supports(String codecName, String mime, int w, int h) { |
| 172 | MediaCodec codec; |
| 173 | try { |
| 174 | codec = MediaCodec.createByCodecName(codecName); |
| 175 | } catch (IOException e) { |
| 176 | return false; |
| 177 | } |
| 178 | |
| 179 | CodecCapabilities cap = null; |
| 180 | try { |
| 181 | cap = codec.getCodecInfo().getCapabilitiesForType(mime); |
| 182 | } catch (IllegalArgumentException e) { |
| 183 | Log.w(TAG, "not supported mime: " + mime); |
| 184 | codec.release(); |
| 185 | return false; |
| 186 | } |
| 187 | |
| 188 | VideoCapabilities vidCap = cap.getVideoCapabilities(); |
| 189 | if (vidCap == null) { |
| 190 | Log.w(TAG, "not a video codec: " + codecName); |
| 191 | codec.release(); |
| 192 | return false; |
| 193 | } |
| 194 | try { |
| 195 | Range<Double> fps = vidCap.getSupportedFrameRatesFor(w, h); |
| 196 | } catch (IllegalArgumentException e) { |
| 197 | Log.w(TAG, "unsupported size " + w + "x" + h); |
| 198 | codec.release(); |
| 199 | return false; |
| 200 | } |
| 201 | codec.release(); |
| 202 | return true; |
| 203 | } |
| 204 | |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 205 | public static boolean hasCodecForTrack(MediaExtractor ex, int track) { |
| 206 | int count = ex.getTrackCount(); |
| 207 | if (track < 0 || track >= count) { |
| 208 | throw new IndexOutOfBoundsException(track + " not in [0.." + (count - 1) + "]"); |
| 209 | } |
| 210 | return canDecode(ex.getTrackFormat(track)); |
| 211 | } |
| 212 | |
Lajos Molnar | 6557fb7 | 2014-11-20 16:07:03 -0800 | [diff] [blame] | 213 | /** |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 214 | * return true iff all audio and video tracks are supported |
| 215 | */ |
| 216 | public static boolean hasCodecsForMedia(MediaExtractor ex) { |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 217 | for (int i = 0; i < ex.getTrackCount(); ++i) { |
| 218 | MediaFormat format = ex.getTrackFormat(i); |
| 219 | // only check for audio and video codecs |
| 220 | String mime = format.getString(MediaFormat.KEY_MIME).toLowerCase(); |
| 221 | if (!mime.startsWith("audio/") && !mime.startsWith("video/")) { |
| 222 | continue; |
| 223 | } |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 224 | if (!canDecode(format)) { |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 225 | return false; |
| 226 | } |
| 227 | } |
| 228 | return true; |
| 229 | } |
| 230 | |
| 231 | /** |
| 232 | * return true iff any track starting with mimePrefix is supported |
| 233 | */ |
| 234 | public static boolean hasCodecForMediaAndDomain(MediaExtractor ex, String mimePrefix) { |
| 235 | mimePrefix = mimePrefix.toLowerCase(); |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 236 | for (int i = 0; i < ex.getTrackCount(); ++i) { |
| 237 | MediaFormat format = ex.getTrackFormat(i); |
| 238 | String mime = format.getString(MediaFormat.KEY_MIME); |
| 239 | if (mime.toLowerCase().startsWith(mimePrefix)) { |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 240 | if (canDecode(format)) { |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 241 | return true; |
| 242 | } |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 243 | Log.i(TAG, "no decoder for " + format); |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 244 | } |
| 245 | } |
| 246 | return false; |
| 247 | } |
| 248 | |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 249 | private static boolean hasCodecsForResourceCombo( |
| 250 | Context context, int resourceId, int track, String mimePrefix) { |
| 251 | try { |
| 252 | AssetFileDescriptor afd = null; |
| 253 | MediaExtractor ex = null; |
| 254 | try { |
| 255 | afd = context.getResources().openRawResourceFd(resourceId); |
| 256 | ex = new MediaExtractor(); |
| 257 | ex.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength()); |
| 258 | if (mimePrefix != null) { |
| 259 | return hasCodecForMediaAndDomain(ex, mimePrefix); |
| 260 | } else if (track == ALL_AV_TRACKS) { |
| 261 | return hasCodecsForMedia(ex); |
| 262 | } else { |
| 263 | return hasCodecForTrack(ex, track); |
| 264 | } |
| 265 | } finally { |
| 266 | if (ex != null) { |
| 267 | ex.release(); |
| 268 | } |
| 269 | if (afd != null) { |
| 270 | afd.close(); |
| 271 | } |
| 272 | } |
| 273 | } catch (IOException e) { |
| 274 | Log.i(TAG, "could not open resource"); |
| 275 | } |
| 276 | return false; |
| 277 | } |
| 278 | |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 279 | /** |
| 280 | * return true iff all audio and video tracks are supported |
| 281 | */ |
| 282 | public static boolean hasCodecsForResource(Context context, int resourceId) { |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 283 | return hasCodecsForResourceCombo(context, resourceId, ALL_AV_TRACKS, null /* mimePrefix */); |
| 284 | } |
| 285 | |
| 286 | public static boolean checkCodecsForResource(Context context, int resourceId) { |
| 287 | return check(hasCodecsForResource(context, resourceId), "no decoder found"); |
| 288 | } |
| 289 | |
| 290 | /** |
| 291 | * return true iff track is supported. |
| 292 | */ |
| 293 | public static boolean hasCodecForResource(Context context, int resourceId, int track) { |
| 294 | return hasCodecsForResourceCombo(context, resourceId, track, null /* mimePrefix */); |
| 295 | } |
| 296 | |
| 297 | public static boolean checkCodecForResource(Context context, int resourceId, int track) { |
| 298 | return check(hasCodecForResource(context, resourceId, track), "no decoder found"); |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 299 | } |
| 300 | |
| 301 | /** |
| 302 | * return true iff any track starting with mimePrefix is supported |
| 303 | */ |
| 304 | public static boolean hasCodecForResourceAndDomain( |
| 305 | Context context, int resourceId, String mimePrefix) { |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 306 | return hasCodecsForResourceCombo(context, resourceId, ALL_AV_TRACKS, mimePrefix); |
| 307 | } |
| 308 | |
| 309 | /** |
| 310 | * return true iff all audio and video tracks are supported |
| 311 | */ |
| 312 | public static boolean hasCodecsForPath(Context context, String path) { |
| 313 | MediaExtractor ex = null; |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 314 | try { |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 315 | ex = new MediaExtractor(); |
| 316 | Uri uri = Uri.parse(path); |
| 317 | String scheme = uri.getScheme(); |
| 318 | if (scheme == null) { // file |
| 319 | ex.setDataSource(path); |
| 320 | } else if (scheme.equalsIgnoreCase("file")) { |
| 321 | ex.setDataSource(uri.getPath()); |
| 322 | } else { |
| 323 | ex.setDataSource(context, uri, null); |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 324 | } |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 325 | return hasCodecsForMedia(ex); |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 326 | } catch (IOException e) { |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 327 | Log.i(TAG, "could not open path " + path); |
| 328 | } finally { |
| 329 | if (ex != null) { |
| 330 | ex.release(); |
| 331 | } |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 332 | } |
| 333 | return false; |
| 334 | } |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 335 | |
| 336 | public static boolean checkCodecsForPath(Context context, String path) { |
| 337 | return check(hasCodecsForPath(context, path), "no decoder found"); |
| 338 | } |
| 339 | |
| 340 | private static boolean hasCodecForMime(boolean encoder, String mime) { |
| 341 | for (MediaCodecInfo info : sMCL.getCodecInfos()) { |
| 342 | if (encoder != info.isEncoder()) { |
| 343 | continue; |
| 344 | } |
| 345 | |
| 346 | for (String type : info.getSupportedTypes()) { |
| 347 | if (type.equalsIgnoreCase(mime)) { |
| 348 | Log.i(TAG, "found codec " + info.getName() + " for mime " + mime); |
| 349 | return true; |
| 350 | } |
| 351 | } |
| 352 | } |
| 353 | return false; |
| 354 | } |
| 355 | |
| 356 | private static boolean hasCodecForMimes(boolean encoder, String[] mimes) { |
| 357 | for (String mime : mimes) { |
| 358 | if (!hasCodecForMime(encoder, mime)) { |
| 359 | Log.i(TAG, "no " + (encoder ? "encoder" : "decoder") + " for mime " + mime); |
| 360 | return false; |
| 361 | } |
| 362 | } |
| 363 | return true; |
| 364 | } |
| 365 | |
| 366 | |
| 367 | public static boolean hasEncoder(String... mimes) { |
| 368 | return hasCodecForMimes(true /* encoder */, mimes); |
| 369 | } |
| 370 | |
| 371 | public static boolean hasDecoder(String... mimes) { |
| 372 | return hasCodecForMimes(false /* encoder */, mimes); |
| 373 | } |
| 374 | |
| 375 | public static boolean checkDecoder(String... mimes) { |
| 376 | return check(hasCodecForMimes(false /* encoder */, mimes), "no decoder found"); |
| 377 | } |
| 378 | |
| 379 | public static boolean checkEncoder(String... mimes) { |
| 380 | return check(hasCodecForMimes(true /* encoder */, mimes), "no encoder found"); |
| 381 | } |
| 382 | |
| 383 | public static boolean canDecodeVideo(String mime, int width, int height, float rate) { |
| 384 | MediaFormat format = MediaFormat.createVideoFormat(mime, width, height); |
Lajos Molnar | 56ff8e3 | 2014-12-11 10:24:41 -0800 | [diff] [blame] | 385 | format.setFloat(MediaFormat.KEY_FRAME_RATE, rate); |
| 386 | return canDecode(format); |
Lajos Molnar | d2be169 | 2014-12-03 15:26:09 -0800 | [diff] [blame] | 387 | } |
| 388 | |
| 389 | public static boolean checkDecoderForFormat(MediaFormat format) { |
| 390 | return check(canDecode(format), "no decoder for " + format); |
| 391 | } |
Wei Jia | e277748 | 2015-04-28 10:26:47 -0700 | [diff] [blame] | 392 | |
| 393 | public static MediaExtractor createMediaExtractorForMimeType( |
| 394 | Context context, int resourceId, String mimeTypePrefix) |
| 395 | throws IOException { |
| 396 | MediaExtractor extractor = new MediaExtractor(); |
| 397 | AssetFileDescriptor afd = context.getResources().openRawResourceFd(resourceId); |
| 398 | try { |
| 399 | extractor.setDataSource( |
| 400 | afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength()); |
| 401 | } finally { |
| 402 | afd.close(); |
| 403 | } |
| 404 | int trackIndex; |
| 405 | for (trackIndex = 0; trackIndex < extractor.getTrackCount(); trackIndex++) { |
| 406 | MediaFormat trackMediaFormat = extractor.getTrackFormat(trackIndex); |
| 407 | if (trackMediaFormat.getString(MediaFormat.KEY_MIME).startsWith(mimeTypePrefix)) { |
| 408 | extractor.selectTrack(trackIndex); |
| 409 | break; |
| 410 | } |
| 411 | } |
| 412 | if (trackIndex == extractor.getTrackCount()) { |
| 413 | extractor.release(); |
| 414 | throw new IllegalStateException("couldn't get a track for " + mimeTypePrefix); |
| 415 | } |
| 416 | |
| 417 | return extractor; |
| 418 | } |
Ronghua Wu | 6352ed0 | 2015-07-23 13:27:22 -0700 | [diff] [blame] | 419 | |
| 420 | /** |
| 421 | * return the average value of the passed array. |
| 422 | */ |
| 423 | public static double getAverage(double[] data) { |
| 424 | int num = data.length; |
| 425 | if (num == 0) { |
| 426 | return 0; |
| 427 | } |
| 428 | |
| 429 | double sum = data[0]; |
| 430 | for (int i = 1; i < num; i++) { |
| 431 | sum += data[i]; |
| 432 | } |
| 433 | return sum / num; |
| 434 | } |
| 435 | |
| 436 | /** |
| 437 | * return the standard deviation value of the passed array |
| 438 | */ |
| 439 | public static double getStdev(double[] data) { |
| 440 | double average = getAverage(data); |
| 441 | int num = data.length; |
| 442 | if (num == 0) { |
| 443 | return 0; |
| 444 | } |
| 445 | double variance = 0; |
| 446 | for (int i = 0; i < num; ++i) { |
| 447 | variance += (data[i] - average) * (data[i] - average); |
| 448 | } |
| 449 | variance /= num; |
| 450 | return Math.sqrt(variance); |
| 451 | } |
| 452 | |
| 453 | public static double[] calculateMovingAverage(double[] array, int n) { |
| 454 | int num = array.length; |
| 455 | if (num < n) { |
| 456 | return null; |
| 457 | } |
| 458 | int avgsNum = num - n + 1; |
| 459 | double[] avgs = new double[avgsNum]; |
| 460 | double sum = array[0]; |
| 461 | for (int i = 1; i < n; ++i) { |
| 462 | sum += array[i]; |
| 463 | } |
| 464 | avgs[0] = sum / n; |
| 465 | |
| 466 | for (int i = n; i < num; ++i) { |
| 467 | sum = sum - array[i - n] + array[i]; |
| 468 | avgs[i - n + 1] = sum / n; |
| 469 | } |
| 470 | return avgs; |
| 471 | } |
| 472 | |
Ronghua Wu | 33f40de | 2015-08-03 10:49:47 -0700 | [diff] [blame] | 473 | public static String logResults(ReportLog log, String prefix, |
Ronghua Wu | 6352ed0 | 2015-07-23 13:27:22 -0700 | [diff] [blame] | 474 | double min, double max, double avg, double stdev) { |
Ronghua Wu | 11c8c85 | 2015-07-31 15:48:56 -0700 | [diff] [blame] | 475 | String msg = prefix; |
| 476 | msg += " min=" + Math.round(min / 1000) + " max=" + Math.round(max / 1000) + |
| 477 | " avg=" + Math.round(avg / 1000) + " stdev=" + Math.round(stdev / 1000); |
| 478 | log.printValue(msg, 1000000000 / min, ResultType.HIGHER_BETTER, ResultUnit.FPS); |
Ronghua Wu | 33f40de | 2015-08-03 10:49:47 -0700 | [diff] [blame] | 479 | return msg; |
Ronghua Wu | 6352ed0 | 2015-07-23 13:27:22 -0700 | [diff] [blame] | 480 | } |
| 481 | |
| 482 | public static VideoCapabilities getVideoCapabilities(String codecName, String mime) { |
| 483 | for (MediaCodecInfo info : sMCL.getCodecInfos()) { |
| 484 | if (!info.getName().equalsIgnoreCase(codecName)) { |
| 485 | continue; |
| 486 | } |
| 487 | CodecCapabilities caps; |
| 488 | try { |
| 489 | caps = info.getCapabilitiesForType(mime); |
| 490 | } catch (IllegalArgumentException e) { |
| 491 | // mime is not supported |
| 492 | continue; |
| 493 | } |
| 494 | return caps.getVideoCapabilities(); |
| 495 | } |
| 496 | return null; |
| 497 | } |
| 498 | |
| 499 | public static Range<Double> getAchievableFrameRatesFor( |
| 500 | String codecName, String mimeType, int width, int height) { |
| 501 | VideoCapabilities cap = getVideoCapabilities(codecName, mimeType); |
| 502 | if (cap == null) { |
| 503 | return null; |
| 504 | } |
| 505 | return cap.getAchievableFrameRatesFor(width, height); |
| 506 | } |
| 507 | |
| 508 | private static final double FRAMERATE_TOLERANCE = Math.sqrt(12.1); |
| 509 | public static boolean verifyResults(String name, String mime, int w, int h, double measured) { |
| 510 | Range<Double> reported = getAchievableFrameRatesFor(name, mime, w, h); |
| 511 | if (reported == null) { |
| 512 | Log.d(TAG, "Failed to getAchievableFrameRatesFor " + |
| 513 | name + " " + mime + " " + w + "x" + h); |
| 514 | return false; |
| 515 | } |
| 516 | double lowerBoundary1 = reported.getLower() / FRAMERATE_TOLERANCE; |
| 517 | double upperBoundary1 = reported.getUpper() * FRAMERATE_TOLERANCE; |
| 518 | double lowerBoundary2 = reported.getUpper() / Math.pow(FRAMERATE_TOLERANCE, 2); |
| 519 | double upperBoundary2 = reported.getLower() * Math.pow(FRAMERATE_TOLERANCE, 2); |
| 520 | Log.d(TAG, name + " " + mime + " " + w + "x" + h + " " + |
| 521 | "lowerBoundary1 " + lowerBoundary1 + " upperBoundary1 " + upperBoundary1 + |
| 522 | " lowerBoundary2 " + lowerBoundary2 + " upperBoundary2 " + upperBoundary2 + |
| 523 | " measured " + measured); |
| 524 | return (measured >= lowerBoundary1 && measured <= upperBoundary1 && |
| 525 | measured >= lowerBoundary2 && measured <= upperBoundary2); |
| 526 | } |
Ronghua Wu | 33f40de | 2015-08-03 10:49:47 -0700 | [diff] [blame] | 527 | |
| 528 | public static String getErrorMessage( |
| 529 | Range<Double> reportedRange, double[] measuredFps, String[] rawData) { |
| 530 | String msg = ""; |
| 531 | if (reportedRange == null) { |
| 532 | msg += "Failed to get achievable frame rate.\n"; |
| 533 | } else { |
| 534 | msg += "Expected achievable frame rate range: " + reportedRange + ".\n"; |
| 535 | } |
| 536 | msg += "Measured frame rate: " + Arrays.toString(measuredFps) + ".\n"; |
| 537 | msg += "Raw data: " + Arrays.toString(rawData) + ".\n"; |
| 538 | return msg; |
| 539 | } |
Lajos Molnar | ba5cb90 | 2014-11-04 15:47:16 -0800 | [diff] [blame] | 540 | } |