Home | History | Annotate | Download | only in tests
      1 /*
      2  * Copyright (C) 2009 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_NDEBUG 0
     18 #define LOG_TAG "OMXHarness"
     19 #include <utils/Log.h>
     20 
     21 #include "OMXHarness.h"
     22 
     23 #include <sys/time.h>
     24 
     25 #include <binder/ProcessState.h>
     26 #include <binder/IServiceManager.h>
     27 #include <binder/MemoryDealer.h>
     28 #include <media/IMediaPlayerService.h>
     29 #include <media/stagefright/foundation/ADebug.h>
     30 #include <media/stagefright/foundation/ALooper.h>
     31 #include <media/stagefright/DataSource.h>
     32 #include <media/stagefright/MediaBuffer.h>
     33 #include <media/stagefright/MediaDefs.h>
     34 #include <media/stagefright/MediaErrors.h>
     35 #include <media/stagefright/MediaExtractor.h>
     36 #include <media/stagefright/MediaSource.h>
     37 #include <media/stagefright/MetaData.h>
     38 #include <media/stagefright/OMXCodec.h>
     39 
     40 #define DEFAULT_TIMEOUT         500000
     41 
     42 namespace android {
     43 
     44 Harness::Harness()
     45     : mInitCheck(NO_INIT) {
     46     mInitCheck = initOMX();
     47 }
     48 
     49 Harness::~Harness() {
     50 }
     51 
     52 status_t Harness::initCheck() const {
     53     return mInitCheck;
     54 }
     55 
     56 status_t Harness::initOMX() {
     57     sp<IServiceManager> sm = defaultServiceManager();
     58     sp<IBinder> binder = sm->getService(String16("media.player"));
     59     sp<IMediaPlayerService> service = interface_cast<IMediaPlayerService>(binder);
     60     mOMX = service->getOMX();
     61 
     62     return mOMX != 0 ? OK : NO_INIT;
     63 }
     64 
     65 void Harness::onMessage(const omx_message &msg) {
     66     Mutex::Autolock autoLock(mLock);
     67     mMessageQueue.push_back(msg);
     68     mMessageAddedCondition.signal();
     69 }
     70 
     71 status_t Harness::dequeueMessageForNode(
     72         IOMX::node_id node, omx_message *msg, int64_t timeoutUs) {
     73     return dequeueMessageForNodeIgnoringBuffers(
     74             node, NULL, NULL, msg, timeoutUs);
     75 }
     76 
     77 // static
     78 bool Harness::handleBufferMessage(
     79         const omx_message &msg,
     80         Vector<Buffer> *inputBuffers,
     81         Vector<Buffer> *outputBuffers) {
     82     switch (msg.type) {
     83         case omx_message::EMPTY_BUFFER_DONE:
     84         {
     85             if (inputBuffers) {
     86                 for (size_t i = 0; i < inputBuffers->size(); ++i) {
     87                     if ((*inputBuffers)[i].mID == msg.u.buffer_data.buffer) {
     88                         inputBuffers->editItemAt(i).mFlags &= ~kBufferBusy;
     89                         return true;
     90                     }
     91                 }
     92                 CHECK(!"should not be here");
     93             }
     94             break;
     95         }
     96 
     97         case omx_message::FILL_BUFFER_DONE:
     98         {
     99             if (outputBuffers) {
    100                 for (size_t i = 0; i < outputBuffers->size(); ++i) {
    101                     if ((*outputBuffers)[i].mID == msg.u.buffer_data.buffer) {
    102                         outputBuffers->editItemAt(i).mFlags &= ~kBufferBusy;
    103                         return true;
    104                     }
    105                 }
    106                 CHECK(!"should not be here");
    107             }
    108             break;
    109         }
    110 
    111         default:
    112             break;
    113     }
    114 
    115     return false;
    116 }
    117 
    118 status_t Harness::dequeueMessageForNodeIgnoringBuffers(
    119         IOMX::node_id node,
    120         Vector<Buffer> *inputBuffers,
    121         Vector<Buffer> *outputBuffers,
    122         omx_message *msg, int64_t timeoutUs) {
    123     int64_t finishBy = ALooper::GetNowUs() + timeoutUs;
    124 
    125     for (;;) {
    126         Mutex::Autolock autoLock(mLock);
    127         List<omx_message>::iterator it = mMessageQueue.begin();
    128         while (it != mMessageQueue.end()) {
    129             if ((*it).node == node) {
    130                 if (handleBufferMessage(*it, inputBuffers, outputBuffers)) {
    131                     it = mMessageQueue.erase(it);
    132                     continue;
    133                 }
    134 
    135                 *msg = *it;
    136                 mMessageQueue.erase(it);
    137 
    138                 return OK;
    139             }
    140 
    141             ++it;
    142         }
    143 
    144         status_t err = (timeoutUs < 0)
    145             ? mMessageAddedCondition.wait(mLock)
    146             : mMessageAddedCondition.waitRelative(
    147                     mLock, (finishBy - ALooper::GetNowUs()) * 1000);
    148 
    149         if (err == TIMED_OUT) {
    150             return err;
    151         }
    152         CHECK_EQ(err, (status_t)OK);
    153     }
    154 }
    155 
    156 status_t Harness::getPortDefinition(
    157         IOMX::node_id node, OMX_U32 portIndex,
    158         OMX_PARAM_PORTDEFINITIONTYPE *def) {
    159     def->nSize = sizeof(*def);
    160     def->nVersion.s.nVersionMajor = 1;
    161     def->nVersion.s.nVersionMinor = 0;
    162     def->nVersion.s.nRevision = 0;
    163     def->nVersion.s.nStep = 0;
    164     def->nPortIndex = portIndex;
    165     return mOMX->getParameter(
    166             node, OMX_IndexParamPortDefinition, def, sizeof(*def));
    167 }
    168 
    169 #define EXPECT(condition, info) \
    170     if (!(condition)) {         \
    171         ALOGE(info); printf("\n  * " info "\n"); return UNKNOWN_ERROR; \
    172     }
    173 
    174 #define EXPECT_SUCCESS(err, info) \
    175     EXPECT((err) == OK, info " failed")
    176 
    177 status_t Harness::allocatePortBuffers(
    178         const sp<MemoryDealer> &dealer,
    179         IOMX::node_id node, OMX_U32 portIndex,
    180         Vector<Buffer> *buffers) {
    181     buffers->clear();
    182 
    183     OMX_PARAM_PORTDEFINITIONTYPE def;
    184     status_t err = getPortDefinition(node, portIndex, &def);
    185     EXPECT_SUCCESS(err, "getPortDefinition");
    186 
    187     for (OMX_U32 i = 0; i < def.nBufferCountActual; ++i) {
    188         Buffer buffer;
    189         buffer.mMemory = dealer->allocate(def.nBufferSize);
    190         buffer.mFlags = 0;
    191         CHECK(buffer.mMemory != NULL);
    192 
    193         err = mOMX->allocateBufferWithBackup(
    194                 node, portIndex, buffer.mMemory, &buffer.mID);
    195         EXPECT_SUCCESS(err, "allocateBuffer");
    196 
    197         buffers->push(buffer);
    198     }
    199 
    200     return OK;
    201 }
    202 
    203 status_t Harness::setRole(IOMX::node_id node, const char *role) {
    204     OMX_PARAM_COMPONENTROLETYPE params;
    205     params.nSize = sizeof(params);
    206     params.nVersion.s.nVersionMajor = 1;
    207     params.nVersion.s.nVersionMinor = 0;
    208     params.nVersion.s.nRevision = 0;
    209     params.nVersion.s.nStep = 0;
    210     strncpy((char *)params.cRole, role, OMX_MAX_STRINGNAME_SIZE - 1);
    211     params.cRole[OMX_MAX_STRINGNAME_SIZE - 1] = '\0';
    212 
    213     return mOMX->setParameter(
    214             node, OMX_IndexParamStandardComponentRole,
    215             &params, sizeof(params));
    216 }
    217 
    218 struct NodeReaper {
    219     NodeReaper(const sp<Harness> &harness, IOMX::node_id node)
    220         : mHarness(harness),
    221           mNode(node) {
    222     }
    223 
    224     ~NodeReaper() {
    225         if (mNode != 0) {
    226             mHarness->mOMX->freeNode(mNode);
    227             mNode = 0;
    228         }
    229     }
    230 
    231     void disarm() {
    232         mNode = 0;
    233     }
    234 
    235 private:
    236     sp<Harness> mHarness;
    237     IOMX::node_id mNode;
    238 
    239     NodeReaper(const NodeReaper &);
    240     NodeReaper &operator=(const NodeReaper &);
    241 };
    242 
    243 static sp<MediaExtractor> CreateExtractorFromURI(const char *uri) {
    244     sp<DataSource> source = DataSource::CreateFromURI(uri);
    245 
    246     if (source == NULL) {
    247         return NULL;
    248     }
    249 
    250     return MediaExtractor::Create(source);
    251 }
    252 
    253 static sp<MediaSource> MakeSource(
    254         const char *uri,
    255         const char *mimeType) {
    256     sp<MediaExtractor> extractor = CreateExtractorFromURI(uri);
    257 
    258     if (extractor == NULL) {
    259         return NULL;
    260     }
    261 
    262     for (size_t i = 0; i < extractor->countTracks(); ++i) {
    263         sp<MetaData> meta = extractor->getTrackMetaData(i);
    264 
    265         const char *trackMIME;
    266         CHECK(meta->findCString(kKeyMIMEType, &trackMIME));
    267 
    268         if (!strcasecmp(trackMIME, mimeType)) {
    269             return extractor->getTrack(i);
    270         }
    271     }
    272 
    273     return NULL;
    274 }
    275 
    276 status_t Harness::testStateTransitions(
    277         const char *componentName, const char *componentRole) {
    278     if (strncmp(componentName, "OMX.", 4)) {
    279         // Non-OMX components, i.e. software decoders won't execute this
    280         // test.
    281         return OK;
    282     }
    283 
    284     sp<MemoryDealer> dealer = new MemoryDealer(16 * 1024 * 1024, "OMXHarness");
    285     IOMX::node_id node;
    286 
    287     status_t err =
    288         mOMX->allocateNode(componentName, this, &node);
    289     EXPECT_SUCCESS(err, "allocateNode");
    290 
    291     NodeReaper reaper(this, node);
    292 
    293     err = setRole(node, componentRole);
    294     EXPECT_SUCCESS(err, "setRole");
    295 
    296     // Initiate transition Loaded->Idle
    297     err = mOMX->sendCommand(node, OMX_CommandStateSet, OMX_StateIdle);
    298     EXPECT_SUCCESS(err, "sendCommand(go-to-Idle)");
    299 
    300     omx_message msg;
    301     err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
    302     // Make sure node doesn't just transition to idle before we are done
    303     // allocating all input and output buffers.
    304     EXPECT(err == TIMED_OUT,
    305             "Component must not transition from loaded to idle before "
    306             "all input and output buffers are allocated.");
    307 
    308     // Now allocate buffers.
    309     Vector<Buffer> inputBuffers;
    310     err = allocatePortBuffers(dealer, node, 0, &inputBuffers);
    311     EXPECT_SUCCESS(err, "allocatePortBuffers(input)");
    312 
    313     err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
    314     CHECK_EQ(err, (status_t)TIMED_OUT);
    315 
    316     Vector<Buffer> outputBuffers;
    317     err = allocatePortBuffers(dealer, node, 1, &outputBuffers);
    318     EXPECT_SUCCESS(err, "allocatePortBuffers(output)");
    319 
    320     err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
    321     EXPECT(err == OK
    322             && msg.type == omx_message::EVENT
    323             && msg.u.event_data.event == OMX_EventCmdComplete
    324             && msg.u.event_data.data1 == OMX_CommandStateSet
    325             && msg.u.event_data.data2 == OMX_StateIdle,
    326            "Component did not properly transition to idle state "
    327            "after all input and output buffers were allocated.");
    328 
    329     // Initiate transition Idle->Executing
    330     err = mOMX->sendCommand(node, OMX_CommandStateSet, OMX_StateExecuting);
    331     EXPECT_SUCCESS(err, "sendCommand(go-to-Executing)");
    332 
    333     err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
    334     EXPECT(err == OK
    335             && msg.type == omx_message::EVENT
    336             && msg.u.event_data.event == OMX_EventCmdComplete
    337             && msg.u.event_data.data1 == OMX_CommandStateSet
    338             && msg.u.event_data.data2 == OMX_StateExecuting,
    339            "Component did not properly transition from idle to "
    340            "executing state.");
    341 
    342     for (size_t i = 0; i < outputBuffers.size(); ++i) {
    343         err = mOMX->fillBuffer(node, outputBuffers[i].mID);
    344         EXPECT_SUCCESS(err, "fillBuffer");
    345 
    346         outputBuffers.editItemAt(i).mFlags |= kBufferBusy;
    347     }
    348 
    349     err = mOMX->sendCommand(node, OMX_CommandFlush, 1);
    350     EXPECT_SUCCESS(err, "sendCommand(flush-output-port)");
    351 
    352     err = dequeueMessageForNodeIgnoringBuffers(
    353             node, &inputBuffers, &outputBuffers, &msg, DEFAULT_TIMEOUT);
    354     EXPECT(err == OK
    355             && msg.type == omx_message::EVENT
    356             && msg.u.event_data.event == OMX_EventCmdComplete
    357             && msg.u.event_data.data1 == OMX_CommandFlush
    358             && msg.u.event_data.data2 == 1,
    359            "Component did not properly acknowledge flushing the output port.");
    360 
    361     for (size_t i = 0; i < outputBuffers.size(); ++i) {
    362         EXPECT((outputBuffers[i].mFlags & kBufferBusy) == 0,
    363                "Not all output buffers have been returned to us by the time "
    364                "we received the flush-complete notification.");
    365     }
    366 
    367     for (size_t i = 0; i < outputBuffers.size(); ++i) {
    368         err = mOMX->fillBuffer(node, outputBuffers[i].mID);
    369         EXPECT_SUCCESS(err, "fillBuffer");
    370 
    371         outputBuffers.editItemAt(i).mFlags |= kBufferBusy;
    372     }
    373 
    374     // Initiate transition Executing->Idle
    375     err = mOMX->sendCommand(node, OMX_CommandStateSet, OMX_StateIdle);
    376     EXPECT_SUCCESS(err, "sendCommand(go-to-Idle)");
    377 
    378     err = dequeueMessageForNodeIgnoringBuffers(
    379             node, &inputBuffers, &outputBuffers, &msg, DEFAULT_TIMEOUT);
    380     EXPECT(err == OK
    381             && msg.type == omx_message::EVENT
    382             && msg.u.event_data.event == OMX_EventCmdComplete
    383             && msg.u.event_data.data1 == OMX_CommandStateSet
    384             && msg.u.event_data.data2 == OMX_StateIdle,
    385            "Component did not properly transition to from executing to "
    386            "idle state.");
    387 
    388     for (size_t i = 0; i < inputBuffers.size(); ++i) {
    389         EXPECT((inputBuffers[i].mFlags & kBufferBusy) == 0,
    390                 "Not all input buffers have been returned to us by the "
    391                 "time we received the transition-to-idle complete "
    392                 "notification.");
    393     }
    394 
    395     for (size_t i = 0; i < outputBuffers.size(); ++i) {
    396         EXPECT((outputBuffers[i].mFlags & kBufferBusy) == 0,
    397                 "Not all output buffers have been returned to us by the "
    398                 "time we received the transition-to-idle complete "
    399                 "notification.");
    400     }
    401 
    402     // Initiate transition Idle->Loaded
    403     err = mOMX->sendCommand(node, OMX_CommandStateSet, OMX_StateLoaded);
    404     EXPECT_SUCCESS(err, "sendCommand(go-to-Loaded)");
    405 
    406     // Make sure node doesn't just transition to loaded before we are done
    407     // freeing all input and output buffers.
    408     err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
    409     CHECK_EQ(err, (status_t)TIMED_OUT);
    410 
    411     for (size_t i = 0; i < inputBuffers.size(); ++i) {
    412         err = mOMX->freeBuffer(node, 0, inputBuffers[i].mID);
    413         EXPECT_SUCCESS(err, "freeBuffer");
    414     }
    415 
    416     err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
    417     CHECK_EQ(err, (status_t)TIMED_OUT);
    418 
    419     for (size_t i = 0; i < outputBuffers.size(); ++i) {
    420         err = mOMX->freeBuffer(node, 1, outputBuffers[i].mID);
    421         EXPECT_SUCCESS(err, "freeBuffer");
    422     }
    423 
    424     err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
    425     EXPECT(err == OK
    426             && msg.type == omx_message::EVENT
    427             && msg.u.event_data.event == OMX_EventCmdComplete
    428             && msg.u.event_data.data1 == OMX_CommandStateSet
    429             && msg.u.event_data.data2 == OMX_StateLoaded,
    430            "Component did not properly transition to from idle to "
    431            "loaded state after freeing all input and output buffers.");
    432 
    433     err = mOMX->freeNode(node);
    434     EXPECT_SUCCESS(err, "freeNode");
    435 
    436     reaper.disarm();
    437 
    438     node = 0;
    439 
    440     return OK;
    441 }
    442 
    443 static const char *GetMimeFromComponentRole(const char *componentRole) {
    444     struct RoleToMime {
    445         const char *mRole;
    446         const char *mMime;
    447     };
    448     const RoleToMime kRoleToMime[] = {
    449         { "video_decoder.avc", "video/avc" },
    450         { "video_decoder.mpeg4", "video/mp4v-es" },
    451         { "video_decoder.h263", "video/3gpp" },
    452         { "video_decoder.vp8", "video/x-vnd.on2.vp8" },
    453         { "video_decoder.vp9", "video/x-vnd.on2.vp9" },
    454 
    455         // we appear to use this as a synonym to amrnb.
    456         { "audio_decoder.amr", "audio/3gpp" },
    457 
    458         { "audio_decoder.amrnb", "audio/3gpp" },
    459         { "audio_decoder.amrwb", "audio/amr-wb" },
    460         { "audio_decoder.aac", "audio/mp4a-latm" },
    461         { "audio_decoder.mp3", "audio/mpeg" },
    462         { "audio_decoder.vorbis", "audio/vorbis" },
    463         { "audio_decoder.g711alaw", MEDIA_MIMETYPE_AUDIO_G711_ALAW },
    464         { "audio_decoder.g711mlaw", MEDIA_MIMETYPE_AUDIO_G711_MLAW },
    465     };
    466 
    467     for (size_t i = 0; i < sizeof(kRoleToMime) / sizeof(kRoleToMime[0]); ++i) {
    468         if (!strcmp(componentRole, kRoleToMime[i].mRole)) {
    469             return kRoleToMime[i].mMime;
    470         }
    471     }
    472 
    473     return NULL;
    474 }
    475 
    476 static const char *GetURLForMime(const char *mime) {
    477     struct MimeToURL {
    478         const char *mMime;
    479         const char *mURL;
    480     };
    481     static const MimeToURL kMimeToURL[] = {
    482         { "video/avc",
    483           "file:///sdcard/media_api/video/H264_500_AAC_128.3gp" },
    484         { "video/mp4v-es", "file:///sdcard/media_api/video/MPEG4_320_AAC_64.mp4" },
    485         { "video/3gpp",
    486           "file:///sdcard/media_api/video/H263_500_AMRNB_12.3gp" },
    487         { "audio/3gpp",
    488           "file:///sdcard/media_api/video/H263_500_AMRNB_12.3gp" },
    489         { "audio/amr-wb", NULL },
    490         { "audio/mp4a-latm",
    491           "file:///sdcard/media_api/video/H263_56_AAC_24.3gp" },
    492         { "audio/mpeg",
    493           "file:///sdcard/media_api/music/MP3_48KHz_128kbps_s_1_17_CBR.mp3" },
    494         { "audio/vorbis", NULL },
    495         { "video/x-vnd.on2.vp8",
    496           "file:///sdcard/media_api/video/big-buck-bunny_trailer.webm" },
    497         { MEDIA_MIMETYPE_AUDIO_G711_ALAW, "file:///sdcard/M1F1-Alaw-AFsp.wav" },
    498         { MEDIA_MIMETYPE_AUDIO_G711_MLAW,
    499           "file:///sdcard/M1F1-mulaw-AFsp.wav" },
    500     };
    501 
    502     for (size_t i = 0; i < sizeof(kMimeToURL) / sizeof(kMimeToURL[0]); ++i) {
    503         if (!strcasecmp(kMimeToURL[i].mMime, mime)) {
    504             return kMimeToURL[i].mURL;
    505         }
    506     }
    507 
    508     return NULL;
    509 }
    510 
    511 static sp<MediaSource> CreateSourceForMime(const char *mime) {
    512     const char *url = GetURLForMime(mime);
    513 
    514     if (url == NULL) {
    515         return NULL;
    516     }
    517 
    518     sp<MediaExtractor> extractor = CreateExtractorFromURI(url);
    519 
    520     if (extractor == NULL) {
    521         return NULL;
    522     }
    523 
    524     for (size_t i = 0; i < extractor->countTracks(); ++i) {
    525         sp<MetaData> meta = extractor->getTrackMetaData(i);
    526         CHECK(meta != NULL);
    527 
    528         const char *trackMime;
    529         CHECK(meta->findCString(kKeyMIMEType, &trackMime));
    530 
    531         if (!strcasecmp(mime, trackMime)) {
    532             return extractor->getTrack(i);
    533         }
    534     }
    535 
    536     return NULL;
    537 }
    538 
    539 static double uniform_rand() {
    540     return (double)rand() / RAND_MAX;
    541 }
    542 
    543 static bool CloseEnough(int64_t time1Us, int64_t time2Us) {
    544 #if 0
    545     int64_t diff = time1Us - time2Us;
    546     if (diff < 0) {
    547         diff = -diff;
    548     }
    549 
    550     return diff <= 50000;
    551 #else
    552     return time1Us == time2Us;
    553 #endif
    554 }
    555 
    556 status_t Harness::testSeek(
    557         const char *componentName, const char *componentRole) {
    558     bool isEncoder =
    559         !strncmp(componentRole, "audio_encoder.", 14)
    560         || !strncmp(componentRole, "video_encoder.", 14);
    561 
    562     if (isEncoder) {
    563         // Not testing seek behaviour for encoders.
    564 
    565         printf("  * Not testing seek functionality for encoders.\n");
    566         return OK;
    567     }
    568 
    569     const char *mime = GetMimeFromComponentRole(componentRole);
    570 
    571     if (!mime) {
    572         printf("  * Cannot perform seek test with this componentRole (%s)\n",
    573                componentRole);
    574 
    575         return OK;
    576     }
    577 
    578     sp<MediaSource> source = CreateSourceForMime(mime);
    579 
    580     if (source == NULL) {
    581         printf("  * Unable to open test content for type '%s', "
    582                "skipping test of componentRole %s\n",
    583                mime, componentRole);
    584 
    585         return OK;
    586     }
    587 
    588     sp<MediaSource> seekSource = CreateSourceForMime(mime);
    589     if (source == NULL || seekSource == NULL) {
    590         return UNKNOWN_ERROR;
    591     }
    592 
    593     CHECK_EQ(seekSource->start(), (status_t)OK);
    594 
    595     sp<MediaSource> codec = OMXCodec::Create(
    596             mOMX, source->getFormat(), false /* createEncoder */,
    597             source, componentName);
    598 
    599     CHECK(codec != NULL);
    600 
    601     CHECK_EQ(codec->start(), (status_t)OK);
    602 
    603     int64_t durationUs;
    604     CHECK(source->getFormat()->findInt64(kKeyDuration, &durationUs));
    605 
    606     ALOGI("stream duration is %lld us (%.2f secs)",
    607          durationUs, durationUs / 1E6);
    608 
    609     static const int32_t kNumIterations = 5000;
    610 
    611     // We are always going to seek beyond EOS in the first iteration (i == 0)
    612     // followed by a linear read for the second iteration (i == 1).
    613     // After that it's all random.
    614     for (int32_t i = 0; i < kNumIterations; ++i) {
    615         int64_t requestedSeekTimeUs;
    616         int64_t actualSeekTimeUs;
    617         MediaSource::ReadOptions options;
    618 
    619         double r = uniform_rand();
    620 
    621         if ((i == 1) || (i > 0 && r < 0.5)) {
    622             // 50% chance of just continuing to decode from last position.
    623 
    624             requestedSeekTimeUs = -1;
    625 
    626             ALOGI("requesting linear read");
    627         } else {
    628             if (i == 0 || r < 0.55) {
    629                 // 5% chance of seeking beyond end of stream.
    630 
    631                 requestedSeekTimeUs = durationUs;
    632 
    633                 ALOGI("requesting seek beyond EOF");
    634             } else {
    635                 requestedSeekTimeUs =
    636                     (int64_t)(uniform_rand() * durationUs);
    637 
    638                 ALOGI("requesting seek to %lld us (%.2f secs)",
    639                      requestedSeekTimeUs, requestedSeekTimeUs / 1E6);
    640             }
    641 
    642             MediaBuffer *buffer = NULL;
    643             options.setSeekTo(
    644                     requestedSeekTimeUs, MediaSource::ReadOptions::SEEK_NEXT_SYNC);
    645 
    646             if (seekSource->read(&buffer, &options) != OK) {
    647                 CHECK(buffer == NULL);
    648                 actualSeekTimeUs = -1;
    649             } else {
    650                 CHECK(buffer != NULL);
    651                 CHECK(buffer->meta_data()->findInt64(kKeyTime, &actualSeekTimeUs));
    652                 CHECK(actualSeekTimeUs >= 0);
    653 
    654                 buffer->release();
    655                 buffer = NULL;
    656             }
    657 
    658             ALOGI("nearest keyframe is at %lld us (%.2f secs)",
    659                  actualSeekTimeUs, actualSeekTimeUs / 1E6);
    660         }
    661 
    662         status_t err;
    663         MediaBuffer *buffer;
    664         for (;;) {
    665             err = codec->read(&buffer, &options);
    666             options.clearSeekTo();
    667             if (err == INFO_FORMAT_CHANGED) {
    668                 CHECK(buffer == NULL);
    669                 continue;
    670             }
    671             if (err == OK) {
    672                 CHECK(buffer != NULL);
    673                 if (buffer->range_length() == 0) {
    674                     buffer->release();
    675                     buffer = NULL;
    676                     continue;
    677                 }
    678             } else {
    679                 CHECK(buffer == NULL);
    680             }
    681 
    682             break;
    683         }
    684 
    685         if (requestedSeekTimeUs < 0) {
    686             // Linear read.
    687             if (err != OK) {
    688                 CHECK(buffer == NULL);
    689             } else {
    690                 CHECK(buffer != NULL);
    691                 buffer->release();
    692                 buffer = NULL;
    693             }
    694         } else if (actualSeekTimeUs < 0) {
    695             EXPECT(err != OK,
    696                    "We attempted to seek beyond EOS and expected "
    697                    "ERROR_END_OF_STREAM to be returned, but instead "
    698                    "we got a valid buffer.");
    699             EXPECT(err == ERROR_END_OF_STREAM,
    700                    "We attempted to seek beyond EOS and expected "
    701                    "ERROR_END_OF_STREAM to be returned, but instead "
    702                    "we found some other error.");
    703             CHECK_EQ(err, (status_t)ERROR_END_OF_STREAM);
    704             CHECK(buffer == NULL);
    705         } else {
    706             EXPECT(err == OK,
    707                    "Expected a valid buffer to be returned from "
    708                    "OMXCodec::read.");
    709             CHECK(buffer != NULL);
    710 
    711             int64_t bufferTimeUs;
    712             CHECK(buffer->meta_data()->findInt64(kKeyTime, &bufferTimeUs));
    713             if (!CloseEnough(bufferTimeUs, actualSeekTimeUs)) {
    714                 printf("\n  * Attempted seeking to %lld us (%.2f secs)",
    715                        requestedSeekTimeUs, requestedSeekTimeUs / 1E6);
    716                 printf("\n  * Nearest keyframe is at %lld us (%.2f secs)",
    717                        actualSeekTimeUs, actualSeekTimeUs / 1E6);
    718                 printf("\n  * Returned buffer was at %lld us (%.2f secs)\n\n",
    719                        bufferTimeUs, bufferTimeUs / 1E6);
    720 
    721                 buffer->release();
    722                 buffer = NULL;
    723 
    724                 CHECK_EQ(codec->stop(), (status_t)OK);
    725 
    726                 return UNKNOWN_ERROR;
    727             }
    728 
    729             buffer->release();
    730             buffer = NULL;
    731         }
    732     }
    733 
    734     CHECK_EQ(codec->stop(), (status_t)OK);
    735 
    736     return OK;
    737 }
    738 
    739 status_t Harness::test(
    740         const char *componentName, const char *componentRole) {
    741     printf("testing %s [%s] ... ", componentName, componentRole);
    742     ALOGI("testing %s [%s].", componentName, componentRole);
    743 
    744     status_t err1 = testStateTransitions(componentName, componentRole);
    745     status_t err2 = testSeek(componentName, componentRole);
    746 
    747     if (err1 != OK) {
    748         return err1;
    749     }
    750 
    751     return err2;
    752 }
    753 
    754 status_t Harness::testAll() {
    755     List<IOMX::ComponentInfo> componentInfos;
    756     status_t err = mOMX->listNodes(&componentInfos);
    757     EXPECT_SUCCESS(err, "listNodes");
    758 
    759     for (List<IOMX::ComponentInfo>::iterator it = componentInfos.begin();
    760          it != componentInfos.end(); ++it) {
    761         const IOMX::ComponentInfo &info = *it;
    762         const char *componentName = info.mName.string();
    763 
    764         if (strncmp(componentName, "OMX.google.", 11)) {
    765             continue;
    766         }
    767 
    768         for (List<String8>::const_iterator role_it = info.mRoles.begin();
    769              role_it != info.mRoles.end(); ++role_it) {
    770             const char *componentRole = (*role_it).string();
    771 
    772             err = test(componentName, componentRole);
    773 
    774             if (err == OK) {
    775                 printf("OK\n");
    776             }
    777         }
    778     }
    779 
    780     return OK;
    781 }
    782 
    783 }  // namespace android
    784 
    785 static void usage(const char *me) {
    786     fprintf(stderr, "usage: %s\n"
    787                     "  -h(elp)  Show this information\n"
    788                     "  -s(eed)  Set the random seed\n"
    789                     "    [ component role ]\n\n"
    790                     "When launched without specifying a specific component "
    791                     "and role, tool will test all available OMX components "
    792                     "in all their supported roles. To determine available "
    793                     "component names, use \"stagefright -l\"\n"
    794                     "It's also a good idea to run a separate \"adb logcat\""
    795                     " for additional debug and progress information.", me);
    796 
    797     exit(0);
    798 }
    799 
    800 int main(int argc, char **argv) {
    801     using namespace android;
    802 
    803     android::ProcessState::self()->startThreadPool();
    804     DataSource::RegisterDefaultSniffers();
    805 
    806     const char *me = argv[0];
    807 
    808     unsigned long seed = 0xdeadbeef;
    809 
    810     int res;
    811     while ((res = getopt(argc, argv, "hs:")) >= 0) {
    812         switch (res) {
    813             case 's':
    814             {
    815                 char *end;
    816                 unsigned long x = strtoul(optarg, &end, 10);
    817 
    818                 if (*end != '\0' || end == optarg) {
    819                     fprintf(stderr, "Malformed seed.\n");
    820                     return 1;
    821                 }
    822 
    823                 seed = x;
    824                 break;
    825             }
    826 
    827             case '?':
    828                 fprintf(stderr, "\n");
    829                 // fall through
    830 
    831             case 'h':
    832             default:
    833             {
    834                 usage(me);
    835                 exit(1);
    836                 break;
    837             }
    838         }
    839     }
    840 
    841     argc -= optind;
    842     argv += optind;
    843 
    844     printf("To reproduce the conditions for this test, launch "
    845            "with \"%s -s %lu\"\n", me, seed);
    846 
    847     srand(seed);
    848 
    849     sp<Harness> h = new Harness;
    850     CHECK_EQ(h->initCheck(), (status_t)OK);
    851 
    852     if (argc == 0) {
    853         h->testAll();
    854     } else if (argc == 2) {
    855         if (h->test(argv[0], argv[1]) == OK) {
    856             printf("OK\n");
    857         }
    858     }
    859 
    860     return 0;
    861 }
    862