Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2013 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 | #define LOG_TAG "ScreenRecord" |
| 18 | //#define LOG_NDEBUG 0 |
| 19 | #include <utils/Log.h> |
| 20 | |
| 21 | #include <binder/IPCThreadState.h> |
| 22 | #include <utils/Errors.h> |
| 23 | #include <utils/Thread.h> |
| 24 | |
| 25 | #include <gui/Surface.h> |
| 26 | #include <gui/SurfaceComposerClient.h> |
| 27 | #include <gui/ISurfaceComposer.h> |
| 28 | #include <ui/DisplayInfo.h> |
| 29 | #include <media/openmax/OMX_IVCommon.h> |
| 30 | #include <media/stagefright/foundation/ABuffer.h> |
| 31 | #include <media/stagefright/foundation/ADebug.h> |
| 32 | #include <media/stagefright/foundation/AMessage.h> |
| 33 | #include <media/stagefright/MediaCodec.h> |
| 34 | #include <media/stagefright/MediaErrors.h> |
| 35 | #include <media/stagefright/MediaMuxer.h> |
| 36 | #include <media/ICrypto.h> |
| 37 | |
| 38 | #include <stdio.h> |
| 39 | #include <signal.h> |
| 40 | #include <getopt.h> |
| 41 | |
| 42 | using namespace android; |
| 43 | |
| 44 | // Command-line parameters. |
| 45 | static bool gVerbose = false; // chatty on stdout |
| 46 | static bool gRotate = false; // rotate 90 degrees |
Andy McFadden | f560001 | 2013-08-02 13:58:54 -0700 | [diff] [blame] | 47 | static bool gSizeSpecified = false; // was size explicitly requested? |
| 48 | static uint32_t gVideoWidth = 0; // default width+height |
| 49 | static uint32_t gVideoHeight = 0; |
Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 50 | static uint32_t gBitRate = 4000000; // 4Mbps |
| 51 | |
| 52 | // Set by signal handler to stop recording. |
| 53 | static bool gStopRequested; |
| 54 | |
| 55 | // Previous signal handler state, restored after first hit. |
| 56 | static struct sigaction gOrigSigactionINT; |
| 57 | static struct sigaction gOrigSigactionHUP; |
| 58 | |
| 59 | static const uint32_t kMinBitRate = 100000; // 0.1Mbps |
| 60 | static const uint32_t kMaxBitRate = 100 * 1000000; // 100Mbps |
| 61 | |
| 62 | /* |
| 63 | * Catch keyboard interrupt signals. On receipt, the "stop requested" |
| 64 | * flag is raised, and the original handler is restored (so that, if |
| 65 | * we get stuck finishing, a second Ctrl-C will kill the process). |
| 66 | */ |
| 67 | static void signalCatcher(int signum) |
| 68 | { |
| 69 | gStopRequested = true; |
| 70 | switch (signum) { |
| 71 | case SIGINT: |
| 72 | sigaction(SIGINT, &gOrigSigactionINT, NULL); |
| 73 | break; |
| 74 | case SIGHUP: |
| 75 | sigaction(SIGHUP, &gOrigSigactionHUP, NULL); |
| 76 | break; |
| 77 | default: |
| 78 | abort(); |
| 79 | break; |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | /* |
| 84 | * Configures signal handlers. The previous handlers are saved. |
| 85 | * |
| 86 | * If the command is run from an interactive adb shell, we get SIGINT |
| 87 | * when Ctrl-C is hit. If we're run from the host, the local adb process |
| 88 | * gets the signal, and we get a SIGHUP when the terminal disconnects. |
| 89 | */ |
| 90 | static status_t configureSignals() |
| 91 | { |
| 92 | struct sigaction act; |
| 93 | memset(&act, 0, sizeof(act)); |
| 94 | act.sa_handler = signalCatcher; |
| 95 | if (sigaction(SIGINT, &act, &gOrigSigactionINT) != 0) { |
| 96 | status_t err = -errno; |
| 97 | fprintf(stderr, "Unable to configure SIGINT handler: %s\n", |
| 98 | strerror(errno)); |
| 99 | return err; |
| 100 | } |
| 101 | if (sigaction(SIGHUP, &act, &gOrigSigactionHUP) != 0) { |
| 102 | status_t err = -errno; |
| 103 | fprintf(stderr, "Unable to configure SIGHUP handler: %s\n", |
| 104 | strerror(errno)); |
| 105 | return err; |
| 106 | } |
| 107 | return NO_ERROR; |
| 108 | } |
| 109 | |
| 110 | /* |
Andy McFadden | f560001 | 2013-08-02 13:58:54 -0700 | [diff] [blame] | 111 | * Returns "true" if the device is rotated 90 degrees. |
| 112 | */ |
| 113 | static bool isDeviceRotated(int orientation) { |
| 114 | return orientation != DISPLAY_ORIENTATION_0 && |
| 115 | orientation != DISPLAY_ORIENTATION_180; |
| 116 | } |
| 117 | |
| 118 | /* |
Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 119 | * Configures and starts the MediaCodec encoder. Obtains an input surface |
| 120 | * from the codec. |
| 121 | */ |
| 122 | static status_t prepareEncoder(float displayFps, sp<MediaCodec>* pCodec, |
| 123 | sp<IGraphicBufferProducer>* pBufferProducer) { |
| 124 | status_t err; |
| 125 | |
Andy McFadden | f560001 | 2013-08-02 13:58:54 -0700 | [diff] [blame] | 126 | if (gVerbose) { |
| 127 | printf("Configuring recorder for %dx%d video at %.2fMbps\n", |
| 128 | gVideoWidth, gVideoHeight, gBitRate / 1000000.0); |
| 129 | } |
| 130 | |
Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 131 | sp<AMessage> format = new AMessage; |
| 132 | format->setInt32("width", gVideoWidth); |
| 133 | format->setInt32("height", gVideoHeight); |
| 134 | format->setString("mime", "video/avc"); |
| 135 | format->setInt32("color-format", OMX_COLOR_FormatAndroidOpaque); |
| 136 | format->setInt32("bitrate", gBitRate); |
| 137 | format->setFloat("frame-rate", displayFps); |
| 138 | format->setInt32("i-frame-interval", 10); |
| 139 | |
| 140 | /// MediaCodec |
| 141 | sp<ALooper> looper = new ALooper; |
| 142 | looper->setName("screenrecord_looper"); |
| 143 | looper->start(); |
| 144 | ALOGV("Creating codec"); |
| 145 | sp<MediaCodec> codec = MediaCodec::CreateByType(looper, "video/avc", true); |
Andy McFadden | a208136 | 2013-08-14 15:08:29 -0700 | [diff] [blame^] | 146 | if (codec == NULL) { |
| 147 | fprintf(stderr, "ERROR: unable to create video/avc codec instance\n"); |
| 148 | return UNKNOWN_ERROR; |
| 149 | } |
Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 150 | err = codec->configure(format, NULL, NULL, |
| 151 | MediaCodec::CONFIGURE_FLAG_ENCODE); |
| 152 | if (err != NO_ERROR) { |
| 153 | fprintf(stderr, "ERROR: unable to configure codec (err=%d)\n", err); |
| 154 | return err; |
| 155 | } |
| 156 | |
| 157 | ALOGV("Creating buffer producer"); |
| 158 | sp<IGraphicBufferProducer> bufferProducer; |
| 159 | err = codec->createInputSurface(&bufferProducer); |
| 160 | if (err != NO_ERROR) { |
| 161 | fprintf(stderr, |
| 162 | "ERROR: unable to create encoder input surface (err=%d)\n", err); |
| 163 | return err; |
| 164 | } |
| 165 | |
| 166 | ALOGV("Starting codec"); |
| 167 | err = codec->start(); |
| 168 | if (err != NO_ERROR) { |
| 169 | fprintf(stderr, "ERROR: unable to start codec (err=%d)\n", err); |
| 170 | return err; |
| 171 | } |
| 172 | |
Andy McFadden | f560001 | 2013-08-02 13:58:54 -0700 | [diff] [blame] | 173 | ALOGV("Codec prepared"); |
Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 174 | *pCodec = codec; |
| 175 | *pBufferProducer = bufferProducer; |
| 176 | return 0; |
| 177 | } |
| 178 | |
| 179 | /* |
| 180 | * Configures the virtual display. When this completes, virtual display |
| 181 | * frames will start being sent to the encoder's surface. |
| 182 | */ |
| 183 | static status_t prepareVirtualDisplay(const DisplayInfo& mainDpyInfo, |
| 184 | const sp<IGraphicBufferProducer>& bufferProducer, |
| 185 | sp<IBinder>* pDisplayHandle) { |
| 186 | status_t err; |
| 187 | |
| 188 | // Set the region of the layer stack we're interested in, which in our |
| 189 | // case is "all of it". If the app is rotated (so that the width of the |
| 190 | // app is based on the height of the display), reverse width/height. |
Andy McFadden | f560001 | 2013-08-02 13:58:54 -0700 | [diff] [blame] | 191 | bool deviceRotated = isDeviceRotated(mainDpyInfo.orientation); |
Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 192 | uint32_t sourceWidth, sourceHeight; |
| 193 | if (!deviceRotated) { |
| 194 | sourceWidth = mainDpyInfo.w; |
| 195 | sourceHeight = mainDpyInfo.h; |
| 196 | } else { |
| 197 | ALOGV("using rotated width/height"); |
| 198 | sourceHeight = mainDpyInfo.w; |
| 199 | sourceWidth = mainDpyInfo.h; |
| 200 | } |
| 201 | Rect layerStackRect(sourceWidth, sourceHeight); |
| 202 | |
| 203 | // We need to preserve the aspect ratio of the display. |
| 204 | float displayAspect = (float) sourceHeight / (float) sourceWidth; |
| 205 | |
| 206 | |
| 207 | // Set the way we map the output onto the display surface (which will |
| 208 | // be e.g. 1280x720 for a 720p video). The rect is interpreted |
| 209 | // post-rotation, so if the display is rotated 90 degrees we need to |
| 210 | // "pre-rotate" it by flipping width/height, so that the orientation |
| 211 | // adjustment changes it back. |
| 212 | // |
| 213 | // We might want to encode a portrait display as landscape to use more |
| 214 | // of the screen real estate. (If players respect a 90-degree rotation |
| 215 | // hint, we can essentially get a 720x1280 video instead of 1280x720.) |
| 216 | // In that case, we swap the configured video width/height and then |
| 217 | // supply a rotation value to the display projection. |
| 218 | uint32_t videoWidth, videoHeight; |
| 219 | uint32_t outWidth, outHeight; |
| 220 | if (!gRotate) { |
| 221 | videoWidth = gVideoWidth; |
| 222 | videoHeight = gVideoHeight; |
| 223 | } else { |
| 224 | videoWidth = gVideoHeight; |
| 225 | videoHeight = gVideoWidth; |
| 226 | } |
| 227 | if (videoHeight > (uint32_t)(videoWidth * displayAspect)) { |
| 228 | // limited by narrow width; reduce height |
| 229 | outWidth = videoWidth; |
| 230 | outHeight = (uint32_t)(videoWidth * displayAspect); |
| 231 | } else { |
| 232 | // limited by short height; restrict width |
| 233 | outHeight = videoHeight; |
| 234 | outWidth = (uint32_t)(videoHeight / displayAspect); |
| 235 | } |
| 236 | uint32_t offX, offY; |
| 237 | offX = (videoWidth - outWidth) / 2; |
| 238 | offY = (videoHeight - outHeight) / 2; |
| 239 | Rect displayRect(offX, offY, offX + outWidth, offY + outHeight); |
| 240 | |
| 241 | if (gVerbose) { |
| 242 | if (gRotate) { |
| 243 | printf("Rotated content area is %ux%u at offset x=%d y=%d\n", |
| 244 | outHeight, outWidth, offY, offX); |
| 245 | } else { |
| 246 | printf("Content area is %ux%u at offset x=%d y=%d\n", |
| 247 | outWidth, outHeight, offX, offY); |
| 248 | } |
| 249 | } |
| 250 | |
| 251 | |
| 252 | sp<IBinder> dpy = SurfaceComposerClient::createDisplay( |
| 253 | String8("ScreenRecorder"), false /* secure */); |
| 254 | |
| 255 | SurfaceComposerClient::openGlobalTransaction(); |
| 256 | SurfaceComposerClient::setDisplaySurface(dpy, bufferProducer); |
| 257 | SurfaceComposerClient::setDisplayProjection(dpy, |
| 258 | gRotate ? DISPLAY_ORIENTATION_90 : DISPLAY_ORIENTATION_0, |
| 259 | layerStackRect, displayRect); |
| 260 | SurfaceComposerClient::setDisplayLayerStack(dpy, 0); // default stack |
| 261 | SurfaceComposerClient::closeGlobalTransaction(); |
| 262 | |
| 263 | *pDisplayHandle = dpy; |
| 264 | |
| 265 | return NO_ERROR; |
| 266 | } |
| 267 | |
| 268 | /* |
| 269 | * Runs the MediaCodec encoder, sending the output to the MediaMuxer. The |
| 270 | * input frames are coming from the virtual display as fast as SurfaceFlinger |
| 271 | * wants to send them. |
| 272 | * |
| 273 | * The muxer must *not* have been started before calling. |
| 274 | */ |
| 275 | static status_t runEncoder(const sp<MediaCodec>& encoder, |
| 276 | const sp<MediaMuxer>& muxer) { |
| 277 | static int kTimeout = 250000; // be responsive on signal |
| 278 | status_t err; |
| 279 | ssize_t trackIdx = -1; |
| 280 | uint32_t debugNumFrames = 0; |
| 281 | time_t debugStartWhen = time(NULL); |
| 282 | |
| 283 | Vector<sp<ABuffer> > buffers; |
| 284 | err = encoder->getOutputBuffers(&buffers); |
| 285 | if (err != NO_ERROR) { |
| 286 | fprintf(stderr, "Unable to get output buffers (err=%d)\n", err); |
| 287 | return err; |
| 288 | } |
| 289 | |
| 290 | // This is set by the signal handler. |
| 291 | gStopRequested = false; |
| 292 | |
| 293 | // Run until we're signaled. |
| 294 | while (!gStopRequested) { |
| 295 | size_t bufIndex, offset, size; |
| 296 | int64_t ptsUsec; |
| 297 | uint32_t flags; |
| 298 | ALOGV("Calling dequeueOutputBuffer"); |
| 299 | err = encoder->dequeueOutputBuffer(&bufIndex, &offset, &size, &ptsUsec, |
| 300 | &flags, kTimeout); |
| 301 | ALOGV("dequeueOutputBuffer returned %d", err); |
| 302 | switch (err) { |
| 303 | case NO_ERROR: |
| 304 | // got a buffer |
| 305 | if ((flags & MediaCodec::BUFFER_FLAG_CODECCONFIG) != 0) { |
| 306 | // ignore this -- we passed the CSD into MediaMuxer when |
| 307 | // we got the format change notification |
| 308 | ALOGV("Got codec config buffer (%u bytes); ignoring", size); |
| 309 | size = 0; |
| 310 | } |
| 311 | if (size != 0) { |
| 312 | ALOGV("Got data in buffer %d, size=%d, pts=%lld", |
| 313 | bufIndex, size, ptsUsec); |
| 314 | CHECK(trackIdx != -1); |
| 315 | |
Andy McFadden | f560001 | 2013-08-02 13:58:54 -0700 | [diff] [blame] | 316 | // If the virtual display isn't providing us with timestamps, |
| 317 | // use the current time. |
| 318 | if (ptsUsec == 0) { |
| 319 | ptsUsec = systemTime(SYSTEM_TIME_MONOTONIC) / 1000; |
| 320 | } |
| 321 | |
Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 322 | // The MediaMuxer docs are unclear, but it appears that we |
| 323 | // need to pass either the full set of BufferInfo flags, or |
| 324 | // (flags & BUFFER_FLAG_SYNCFRAME). |
| 325 | err = muxer->writeSampleData(buffers[bufIndex], trackIdx, |
| 326 | ptsUsec, flags); |
| 327 | if (err != NO_ERROR) { |
| 328 | fprintf(stderr, "Failed writing data to muxer (err=%d)\n", |
| 329 | err); |
| 330 | return err; |
| 331 | } |
| 332 | debugNumFrames++; |
| 333 | } |
| 334 | err = encoder->releaseOutputBuffer(bufIndex); |
| 335 | if (err != NO_ERROR) { |
| 336 | fprintf(stderr, "Unable to release output buffer (err=%d)\n", |
| 337 | err); |
| 338 | return err; |
| 339 | } |
| 340 | if ((flags & MediaCodec::BUFFER_FLAG_EOS) != 0) { |
| 341 | // Not expecting EOS from SurfaceFlinger. Go with it. |
| 342 | ALOGD("Received end-of-stream"); |
| 343 | gStopRequested = false; |
| 344 | } |
| 345 | break; |
| 346 | case -EAGAIN: // INFO_TRY_AGAIN_LATER |
| 347 | // not expected with infinite timeout |
| 348 | ALOGV("Got -EAGAIN, looping"); |
| 349 | break; |
| 350 | case INFO_FORMAT_CHANGED: // INFO_OUTPUT_FORMAT_CHANGED |
| 351 | { |
| 352 | // format includes CSD, which we must provide to muxer |
| 353 | ALOGV("Encoder format changed"); |
| 354 | sp<AMessage> newFormat; |
| 355 | encoder->getOutputFormat(&newFormat); |
| 356 | trackIdx = muxer->addTrack(newFormat); |
| 357 | ALOGV("Starting muxer"); |
| 358 | err = muxer->start(); |
| 359 | if (err != NO_ERROR) { |
| 360 | fprintf(stderr, "Unable to start muxer (err=%d)\n", err); |
| 361 | return err; |
| 362 | } |
| 363 | } |
| 364 | break; |
| 365 | case INFO_OUTPUT_BUFFERS_CHANGED: // INFO_OUTPUT_BUFFERS_CHANGED |
| 366 | // not expected for an encoder; handle it anyway |
| 367 | ALOGV("Encoder buffers changed"); |
| 368 | err = encoder->getOutputBuffers(&buffers); |
| 369 | if (err != NO_ERROR) { |
| 370 | fprintf(stderr, |
| 371 | "Unable to get new output buffers (err=%d)\n", err); |
| 372 | } |
| 373 | break; |
| 374 | default: |
| 375 | ALOGW("Got weird result %d from dequeueOutputBuffer", err); |
| 376 | return err; |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | ALOGV("Encoder stopping (req=%d)", gStopRequested); |
| 381 | if (gVerbose) { |
| 382 | printf("Encoder stopping; recorded %u frames in %ld seconds\n", |
| 383 | debugNumFrames, time(NULL) - debugStartWhen); |
| 384 | } |
| 385 | return NO_ERROR; |
| 386 | } |
| 387 | |
| 388 | /* |
| 389 | * Main "do work" method. |
| 390 | * |
| 391 | * Configures codec, muxer, and virtual display, then starts moving bits |
| 392 | * around. |
| 393 | */ |
| 394 | static status_t recordScreen(const char* fileName) { |
| 395 | status_t err; |
| 396 | |
Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 397 | // Configure signal handler. |
| 398 | err = configureSignals(); |
| 399 | if (err != NO_ERROR) return err; |
| 400 | |
| 401 | // Start Binder thread pool. MediaCodec needs to be able to receive |
| 402 | // messages from mediaserver. |
| 403 | sp<ProcessState> self = ProcessState::self(); |
| 404 | self->startThreadPool(); |
| 405 | |
| 406 | // Get main display parameters. |
| 407 | sp<IBinder> mainDpy = SurfaceComposerClient::getBuiltInDisplay( |
| 408 | ISurfaceComposer::eDisplayIdMain); |
| 409 | DisplayInfo mainDpyInfo; |
| 410 | err = SurfaceComposerClient::getDisplayInfo(mainDpy, &mainDpyInfo); |
| 411 | if (err != NO_ERROR) { |
| 412 | fprintf(stderr, "ERROR: unable to get display characteristics\n"); |
| 413 | return err; |
| 414 | } |
| 415 | if (gVerbose) { |
| 416 | printf("Main display is %dx%d @%.2ffps (orientation=%u)\n", |
| 417 | mainDpyInfo.w, mainDpyInfo.h, mainDpyInfo.fps, |
| 418 | mainDpyInfo.orientation); |
| 419 | } |
| 420 | |
Andy McFadden | f560001 | 2013-08-02 13:58:54 -0700 | [diff] [blame] | 421 | bool rotated = isDeviceRotated(mainDpyInfo.orientation); |
| 422 | if (gVideoWidth == 0) { |
| 423 | gVideoWidth = rotated ? mainDpyInfo.h : mainDpyInfo.w; |
| 424 | } |
| 425 | if (gVideoHeight == 0) { |
| 426 | gVideoHeight = rotated ? mainDpyInfo.w : mainDpyInfo.h; |
| 427 | } |
| 428 | |
Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 429 | // Configure and start the encoder. |
| 430 | sp<MediaCodec> encoder; |
| 431 | sp<IGraphicBufferProducer> bufferProducer; |
| 432 | err = prepareEncoder(mainDpyInfo.fps, &encoder, &bufferProducer); |
Andy McFadden | f560001 | 2013-08-02 13:58:54 -0700 | [diff] [blame] | 433 | if (err != NO_ERROR && !gSizeSpecified) { |
| 434 | ALOGV("Retrying with 720p"); |
| 435 | if (gVideoWidth != 1280 && gVideoHeight != 720) { |
| 436 | fprintf(stderr, "WARNING: failed at %dx%d, retrying at 720p\n", |
| 437 | gVideoWidth, gVideoHeight); |
| 438 | gVideoWidth = 1280; |
| 439 | gVideoHeight = 720; |
| 440 | err = prepareEncoder(mainDpyInfo.fps, &encoder, &bufferProducer); |
| 441 | } |
| 442 | } |
| 443 | if (err != NO_ERROR) { |
| 444 | return err; |
| 445 | } |
Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 446 | |
| 447 | // Configure virtual display. |
| 448 | sp<IBinder> dpy; |
| 449 | err = prepareVirtualDisplay(mainDpyInfo, bufferProducer, &dpy); |
| 450 | if (err != NO_ERROR) return err; |
| 451 | |
| 452 | // Configure, but do not start, muxer. |
| 453 | sp<MediaMuxer> muxer = new MediaMuxer(fileName, |
| 454 | MediaMuxer::OUTPUT_FORMAT_MPEG_4); |
| 455 | if (gRotate) { |
| 456 | muxer->setOrientationHint(90); |
| 457 | } |
| 458 | |
| 459 | // Main encoder loop. |
| 460 | err = runEncoder(encoder, muxer); |
| 461 | if (err != NO_ERROR) return err; |
| 462 | |
| 463 | if (gVerbose) { |
| 464 | printf("Stopping encoder and muxer\n"); |
| 465 | } |
| 466 | |
Andy McFadden | 2533c83 | 2013-08-14 11:23:06 -0700 | [diff] [blame] | 467 | // Shut everything down, starting with the producer side. |
Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 468 | bufferProducer = NULL; |
Andy McFadden | 2533c83 | 2013-08-14 11:23:06 -0700 | [diff] [blame] | 469 | SurfaceComposerClient::destroyDisplay(dpy); |
Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 470 | |
| 471 | encoder->stop(); |
| 472 | muxer->stop(); |
| 473 | encoder->release(); |
| 474 | |
| 475 | return 0; |
| 476 | } |
| 477 | |
| 478 | /* |
| 479 | * Parses a string of the form "1280x720". |
| 480 | * |
| 481 | * Returns true on success. |
| 482 | */ |
| 483 | static bool parseWidthHeight(const char* widthHeight, uint32_t* pWidth, |
| 484 | uint32_t* pHeight) { |
| 485 | long width, height; |
| 486 | char* end; |
| 487 | |
| 488 | // Must specify base 10, or "0x0" gets parsed differently. |
| 489 | width = strtol(widthHeight, &end, 10); |
| 490 | if (end == widthHeight || *end != 'x' || *(end+1) == '\0') { |
| 491 | // invalid chars in width, or missing 'x', or missing height |
| 492 | return false; |
| 493 | } |
| 494 | height = strtol(end + 1, &end, 10); |
| 495 | if (*end != '\0') { |
| 496 | // invalid chars in height |
| 497 | return false; |
| 498 | } |
| 499 | |
| 500 | *pWidth = width; |
| 501 | *pHeight = height; |
| 502 | return true; |
| 503 | } |
| 504 | |
| 505 | /* |
| 506 | * Dumps usage on stderr. |
| 507 | */ |
| 508 | static void usage() { |
| 509 | fprintf(stderr, |
| 510 | "Usage: screenrecord [options] <filename>\n" |
| 511 | "\n" |
Andy McFadden | f560001 | 2013-08-02 13:58:54 -0700 | [diff] [blame] | 512 | "Records the device's display to a .mp4 file.\n" |
| 513 | "\n" |
Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 514 | "Options:\n" |
| 515 | "--size WIDTHxHEIGHT\n" |
| 516 | " Set the video size, e.g. \"1280x720\". For best results, use\n" |
| 517 | " a size supported by the AVC encoder.\n" |
| 518 | "--bit-rate RATE\n" |
| 519 | " Set the video bit rate, in megabits per second. Default 4Mbps.\n" |
| 520 | "--rotate\n" |
Andy McFadden | f560001 | 2013-08-02 13:58:54 -0700 | [diff] [blame] | 521 | " Rotate the output 90 degrees.\n" |
Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 522 | "--verbose\n" |
| 523 | " Display interesting information on stdout.\n" |
| 524 | "--help\n" |
| 525 | " Show this message.\n" |
| 526 | "\n" |
| 527 | "Recording continues until Ctrl-C is hit.\n" |
| 528 | "\n" |
| 529 | ); |
| 530 | } |
| 531 | |
| 532 | /* |
| 533 | * Parses args and kicks things off. |
| 534 | */ |
| 535 | int main(int argc, char* const argv[]) { |
| 536 | static const struct option longOptions[] = { |
| 537 | { "help", no_argument, NULL, 'h' }, |
| 538 | { "verbose", no_argument, NULL, 'v' }, |
| 539 | { "size", required_argument, NULL, 's' }, |
| 540 | { "bit-rate", required_argument, NULL, 'b' }, |
| 541 | { "rotate", no_argument, NULL, 'r' }, |
| 542 | { NULL, 0, NULL, 0 } |
| 543 | }; |
| 544 | |
| 545 | while (true) { |
| 546 | int optionIndex = 0; |
| 547 | int ic = getopt_long(argc, argv, "", longOptions, &optionIndex); |
| 548 | if (ic == -1) { |
| 549 | break; |
| 550 | } |
| 551 | |
| 552 | switch (ic) { |
| 553 | case 'h': |
| 554 | usage(); |
| 555 | return 0; |
| 556 | case 'v': |
| 557 | gVerbose = true; |
| 558 | break; |
| 559 | case 's': |
| 560 | if (!parseWidthHeight(optarg, &gVideoWidth, &gVideoHeight)) { |
| 561 | fprintf(stderr, "Invalid size '%s', must be width x height\n", |
| 562 | optarg); |
| 563 | return 2; |
| 564 | } |
| 565 | if (gVideoWidth == 0 || gVideoHeight == 0) { |
| 566 | fprintf(stderr, |
| 567 | "Invalid size %ux%u, width and height may not be zero\n", |
| 568 | gVideoWidth, gVideoHeight); |
| 569 | return 2; |
| 570 | } |
Andy McFadden | f560001 | 2013-08-02 13:58:54 -0700 | [diff] [blame] | 571 | gSizeSpecified = true; |
Andy McFadden | 1f5a90b | 2013-07-22 12:23:07 -0700 | [diff] [blame] | 572 | break; |
| 573 | case 'b': |
| 574 | gBitRate = atoi(optarg); |
| 575 | if (gBitRate < kMinBitRate || gBitRate > kMaxBitRate) { |
| 576 | fprintf(stderr, |
| 577 | "Bit rate %dbps outside acceptable range [%d,%d]\n", |
| 578 | gBitRate, kMinBitRate, kMaxBitRate); |
| 579 | return 2; |
| 580 | } |
| 581 | break; |
| 582 | case 'r': |
| 583 | gRotate = true; |
| 584 | break; |
| 585 | default: |
| 586 | if (ic != '?') { |
| 587 | fprintf(stderr, "getopt_long returned unexpected value 0x%x\n", ic); |
| 588 | } |
| 589 | return 2; |
| 590 | } |
| 591 | } |
| 592 | |
| 593 | if (optind != argc - 1) { |
| 594 | fprintf(stderr, "Must specify output file (see --help).\n"); |
| 595 | return 2; |
| 596 | } |
| 597 | |
| 598 | status_t err = recordScreen(argv[optind]); |
| 599 | ALOGD(err == NO_ERROR ? "success" : "failed"); |
| 600 | return (int) err; |
| 601 | } |