static int main(int argc, char** argv) {
// Skip over the first argument.
argc--;
argv++;
bool generateFlag = false;
String8 targetConfigStr;
Vector<String8> splitApkPaths;
String8 baseApkPath;
while (argc > 0) {
const String8 arg(*argv);
if (arg == "--target") {
argc--;
argv++;
if (argc < 1) {
fprintf(stderr, "error: missing parameter for --target.\n");
usage();
return 1;
}
targetConfigStr.setTo(*argv);
} else if (arg == "--split") {
argc--;
argv++;
if (argc < 1) {
fprintf(stderr, "error: missing parameter for --split.\n");
usage();
return 1;
}
splitApkPaths.add(String8(*argv));
} else if (arg == "--base") {
argc--;
argv++;
if (argc < 1) {
fprintf(stderr, "error: missing parameter for --base.\n");
usage();
return 1;
}
if (baseApkPath.size() > 0) {
fprintf(stderr, "error: multiple --base flags not allowed.\n");
usage();
return 1;
}
baseApkPath.setTo(*argv);
} else if (arg == "--generate") {
generateFlag = true;
} else if (arg == "--help") {
help();
return 0;
} else {
fprintf(stderr, "error: unknown argument '%s'.\n", arg.string());
usage();
return 1;
}
argc--;
argv++;
}
if (!generateFlag && targetConfigStr == "") {
usage();
return 1;
}
if (baseApkPath.size() == 0) {
fprintf(stderr, "error: missing --base argument.\n");
usage();
return 1;
}
// Find out some details about the base APK.
AppInfo baseAppInfo;
if (!getAppInfo(baseApkPath, baseAppInfo)) {
fprintf(stderr, "error: unable to read base APK: '%s'.\n", baseApkPath.string());
return 1;
}
SplitDescription targetSplit;
if (!generateFlag) {
if (!SplitDescription::parse(targetConfigStr, &targetSplit)) {
fprintf(stderr, "error: invalid --target config: '%s'.\n",
targetConfigStr.string());
usage();
return 1;
}
// We don't want to match on things that will change at run-time
// (orientation, w/h, etc.).
removeRuntimeQualifiers(&targetSplit.config);
}
splitApkPaths.add(baseApkPath);
KeyedVector<String8, Vector<SplitDescription> > apkPathSplitMap;
KeyedVector<SplitDescription, String8> splitApkPathMap;
Vector<SplitDescription> splitConfigs;
const size_t splitCount = splitApkPaths.size();
for (size_t i = 0; i < splitCount; i++) {
Vector<SplitDescription> splits = extractSplitDescriptionsFromApk(splitApkPaths[i]);
if (splits.isEmpty()) {
fprintf(stderr, "error: invalid --split path: '%s'. No splits found.\n",
splitApkPaths[i].string());
usage();
return 1;
}
apkPathSplitMap.replaceValueFor(splitApkPaths[i], splits);
const size_t apkSplitDescriptionCount = splits.size();
for (size_t j = 0; j < apkSplitDescriptionCount; j++) {
splitApkPathMap.replaceValueFor(splits[j], splitApkPaths[i]);
}
splitConfigs.appendVector(splits);
}
if (!generateFlag) {
Vector<SplitDescription> matchingConfigs = select(targetSplit, splitConfigs);
const size_t matchingConfigCount = matchingConfigs.size();
SortedVector<String8> matchingSplitPaths;
for (size_t i = 0; i < matchingConfigCount; i++) {
matchingSplitPaths.add(splitApkPathMap.valueFor(matchingConfigs[i]));
}
const size_t matchingSplitApkPathCount = matchingSplitPaths.size();
for (size_t i = 0; i < matchingSplitApkPathCount; i++) {
if (matchingSplitPaths[i] != baseApkPath) {
fprintf(stdout, "%s\n", matchingSplitPaths[i].string());
}
}
} else {
generate(apkPathSplitMap, baseApkPath);
}
return 0;
}
static int muxing(
const char *path,
bool useAudio,
bool useVideo,
const char *outputFileName,
bool enableTrim,
int trimStartTimeMs,
int trimEndTimeMs,
int rotationDegrees,
MediaMuxer::OutputFormat container = MediaMuxer::OUTPUT_FORMAT_MPEG_4) {
sp<NuMediaExtractor> extractor = new NuMediaExtractor;
if (extractor->setDataSource(NULL /* httpService */, path) != OK) {
fprintf(stderr, "unable to instantiate extractor. %s\n", path);
return 1;
}
if (outputFileName == NULL) {
outputFileName = "/sdcard/muxeroutput.mp4";
}
ALOGV("input file %s, output file %s", path, outputFileName);
ALOGV("useAudio %d, useVideo %d", useAudio, useVideo);
int fd = open(outputFileName, O_CREAT | O_LARGEFILE | O_TRUNC | O_RDWR, S_IRUSR | S_IWUSR);
if (fd < 0) {
ALOGE("couldn't open file");
return fd;
}
sp<MediaMuxer> muxer = new MediaMuxer(fd, container);
close(fd);
size_t trackCount = extractor->countTracks();
// Map the extractor's track index to the muxer's track index.
KeyedVector<size_t, ssize_t> trackIndexMap;
size_t bufferSize = 1 * 1024 * 1024; // default buffer size is 1MB.
bool haveAudio = false;
bool haveVideo = false;
int64_t trimStartTimeUs = trimStartTimeMs * 1000;
int64_t trimEndTimeUs = trimEndTimeMs * 1000;
bool trimStarted = false;
int64_t trimOffsetTimeUs = 0;
for (size_t i = 0; i < trackCount; ++i) {
sp<AMessage> format;
status_t err = extractor->getTrackFormat(i, &format);
CHECK_EQ(err, (status_t)OK);
ALOGV("extractor getTrackFormat: %s", format->debugString().c_str());
AString mime;
CHECK(format->findString("mime", &mime));
bool isAudio = !strncasecmp(mime.c_str(), "audio/", 6);
bool isVideo = !strncasecmp(mime.c_str(), "video/", 6);
if (useAudio && !haveAudio && isAudio) {
haveAudio = true;
} else if (useVideo && !haveVideo && isVideo) {
haveVideo = true;
} else {
continue;
}
if (isVideo) {
int width , height;
CHECK(format->findInt32("width", &width));
CHECK(format->findInt32("height", &height));
bufferSize = width * height * 4; // Assuming it is maximally 4BPP
}
int64_t duration;
CHECK(format->findInt64("durationUs", &duration));
// Since we got the duration now, correct the start time.
if (enableTrim) {
if (trimStartTimeUs > duration) {
fprintf(stderr, "Warning: trimStartTimeUs > duration,"
" reset to 0\n");
trimStartTimeUs = 0;
}
}
ALOGV("selecting track %zu", i);
err = extractor->selectTrack(i);
CHECK_EQ(err, (status_t)OK);
ssize_t newTrackIndex = muxer->addTrack(format);
if (newTrackIndex < 0) {
fprintf(stderr, "%s track (%zu) unsupported by muxer\n",
isAudio ? "audio" : "video",
i);
} else {
trackIndexMap.add(i, newTrackIndex);
}
}
int64_t muxerStartTimeUs = ALooper::GetNowUs();
bool sawInputEOS = false;
size_t trackIndex = -1;
sp<ABuffer> newBuffer = new ABuffer(bufferSize);
muxer->setOrientationHint(rotationDegrees);
muxer->start();
while (!sawInputEOS) {
status_t err = extractor->getSampleTrackIndex(&trackIndex);
if (err != OK) {
ALOGV("saw input eos, err %d", err);
sawInputEOS = true;
break;
} else if (trackIndexMap.indexOfKey(trackIndex) < 0) {
// ALOGV("skipping input from unsupported track %zu", trackIndex);
extractor->advance();
continue;
} else {
// ALOGV("reading sample from track index %zu\n", trackIndex);
err = extractor->readSampleData(newBuffer);
CHECK_EQ(err, (status_t)OK);
int64_t timeUs;
err = extractor->getSampleTime(&timeUs);
CHECK_EQ(err, (status_t)OK);
sp<MetaData> meta;
err = extractor->getSampleMeta(&meta);
CHECK_EQ(err, (status_t)OK);
uint32_t sampleFlags = 0;
int32_t val;
if (meta->findInt32(kKeyIsSyncFrame, &val) && val != 0) {
// We only support BUFFER_FLAG_SYNCFRAME in the flag for now.
sampleFlags |= MediaCodec::BUFFER_FLAG_SYNCFRAME;
// We turn on trimming at the sync frame.
if (enableTrim && timeUs > trimStartTimeUs &&
timeUs <= trimEndTimeUs) {
if (trimStarted == false) {
trimOffsetTimeUs = timeUs;
}
trimStarted = true;
}
}
// Trim can end at any non-sync frame.
if (enableTrim && timeUs > trimEndTimeUs) {
trimStarted = false;
}
if (!enableTrim || (enableTrim && trimStarted)) {
err = muxer->writeSampleData(newBuffer,
trackIndexMap.valueFor(trackIndex),
timeUs - trimOffsetTimeUs, sampleFlags);
}
extractor->advance();
}
}
muxer->stop();
newBuffer.clear();
trackIndexMap.clear();
int64_t elapsedTimeUs = ALooper::GetNowUs() - muxerStartTimeUs;
fprintf(stderr, "SUCCESS: muxer generate the video in %" PRId64 " ms\n",
elapsedTimeUs / 1000);
return 0;
}
status_t VendorTagDescriptor::createDescriptorFromOps(const vendor_tag_ops_t* vOps,
/*out*/
sp<VendorTagDescriptor>& descriptor) {
if (vOps == NULL) {
ALOGE("%s: vendor_tag_ops argument was NULL.", __FUNCTION__);
return BAD_VALUE;
}
int tagCount = vOps->get_tag_count(vOps);
if (tagCount < 0 || tagCount > INT32_MAX) {
ALOGE("%s: tag count %d from vendor ops is invalid.", __FUNCTION__, tagCount);
return BAD_VALUE;
}
Vector<uint32_t> tagArray;
LOG_ALWAYS_FATAL_IF(tagArray.resize(tagCount) != tagCount,
"%s: too many (%u) vendor tags defined.", __FUNCTION__, tagCount);
vOps->get_all_tags(vOps, /*out*/tagArray.editArray());
sp<VendorTagDescriptor> desc = new VendorTagDescriptor();
desc->mTagCount = tagCount;
SortedVector<String8> sections;
KeyedVector<uint32_t, String8> tagToSectionMap;
for (size_t i = 0; i < static_cast<size_t>(tagCount); ++i) {
uint32_t tag = tagArray[i];
if (tag < CAMERA_METADATA_VENDOR_TAG_BOUNDARY) {
ALOGE("%s: vendor tag %d not in vendor tag section.", __FUNCTION__, tag);
return BAD_VALUE;
}
const char *tagName = vOps->get_tag_name(vOps, tag);
if (tagName == NULL) {
ALOGE("%s: no tag name defined for vendor tag %d.", __FUNCTION__, tag);
return BAD_VALUE;
}
desc->mTagToNameMap.add(tag, String8(tagName));
const char *sectionName = vOps->get_section_name(vOps, tag);
if (sectionName == NULL) {
ALOGE("%s: no section name defined for vendor tag %d.", __FUNCTION__, tag);
return BAD_VALUE;
}
String8 sectionString(sectionName);
sections.add(sectionString);
tagToSectionMap.add(tag, sectionString);
int tagType = vOps->get_tag_type(vOps, tag);
if (tagType < 0 || tagType >= NUM_TYPES) {
ALOGE("%s: tag type %d from vendor ops does not exist.", __FUNCTION__, tagType);
return BAD_VALUE;
}
desc->mTagToTypeMap.add(tag, tagType);
}
desc->mSections = sections;
for (size_t i = 0; i < static_cast<size_t>(tagCount); ++i) {
uint32_t tag = tagArray[i];
String8 sectionString = tagToSectionMap.valueFor(tag);
// Set up tag to section index map
ssize_t index = sections.indexOf(sectionString);
LOG_ALWAYS_FATAL_IF(index < 0, "index %zd must be non-negative", index);
desc->mTagToSectionMap.add(tag, static_cast<uint32_t>(index));
// Set up reverse mapping
ssize_t reverseIndex = -1;
if ((reverseIndex = desc->mReverseMapping.indexOfKey(sectionString)) < 0) {
KeyedVector<String8, uint32_t>* nameMapper = new KeyedVector<String8, uint32_t>();
reverseIndex = desc->mReverseMapping.add(sectionString, nameMapper);
}
desc->mReverseMapping[reverseIndex]->add(desc->mTagToNameMap.valueFor(tag), tag);
}
descriptor = desc;
return OK;
}