| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| //#define LOG_NDEBUG 0 |
| #define LOG_TAG "ItemTable" |
| |
| #include <unordered_set> |
| |
| #include <ItemTable.h> |
| #include <media/MediaExtractorPluginApi.h> |
| #include <media/MediaExtractorPluginHelper.h> |
| #include <media/stagefright/MetaData.h> |
| #include <media/stagefright/MediaErrors.h> |
| #include <media/stagefright/foundation/ABuffer.h> |
| #include <media/stagefright/foundation/ByteUtils.h> |
| #include <media/stagefright/foundation/hexdump.h> |
| #include <media/stagefright/foundation/MediaDefs.h> |
| #include <utils/Log.h> |
| |
| namespace android { |
| |
| namespace heif { |
| |
| ///////////////////////////////////////////////////////////////////// |
| // |
| // struct to keep track of one image item |
| // |
| |
| struct ImageItem { |
| friend struct ItemReference; |
| friend struct ItemProperty; |
| |
| ImageItem() : ImageItem(0, 0, false) {} |
| ImageItem(uint32_t _type, uint32_t _id, bool _hidden) : |
| type(_type), itemId(_id), hidden(_hidden), |
| rows(0), columns(0), width(0), height(0), rotation(0), |
| offset(0), size(0), nextTileIndex(0) {} |
| |
| bool isGrid() const { |
| return type == FOURCC("grid"); |
| } |
| |
| status_t getNextTileItemId(uint32_t *nextTileItemId, bool reset) { |
| if (reset) { |
| nextTileIndex = 0; |
| } |
| if (nextTileIndex >= dimgRefs.size()) { |
| return ERROR_END_OF_STREAM; |
| } |
| *nextTileItemId = dimgRefs[nextTileIndex++]; |
| return OK; |
| } |
| |
| uint32_t type; |
| uint32_t itemId; |
| bool hidden; |
| int32_t rows; |
| int32_t columns; |
| int32_t width; |
| int32_t height; |
| int32_t rotation; |
| off64_t offset; |
| size_t size; |
| sp<ABuffer> hvcc; |
| sp<ABuffer> icc; |
| |
| Vector<uint32_t> thumbnails; |
| Vector<uint32_t> dimgRefs; |
| Vector<uint32_t> cdscRefs; |
| size_t nextTileIndex; |
| }; |
| |
| struct ExifItem { |
| off64_t offset; |
| size_t size; |
| }; |
| |
| ///////////////////////////////////////////////////////////////////// |
| // |
| // ISO boxes |
| // |
| |
| struct Box { |
| protected: |
| Box(DataSourceHelper *source, uint32_t type) : |
| mDataSource(source), mType(type) {} |
| |
| virtual ~Box() {} |
| |
| virtual status_t onChunkData( |
| uint32_t /*type*/, off64_t /*offset*/, size_t /*size*/) { |
| return OK; |
| } |
| |
| inline uint32_t type() const { return mType; } |
| |
| inline DataSourceHelper *source() const { return mDataSource; } |
| |
| status_t parseChunk(off64_t *offset); |
| |
| status_t parseChunks(off64_t offset, size_t size); |
| |
| private: |
| DataSourceHelper *mDataSource; |
| uint32_t mType; |
| }; |
| |
| status_t Box::parseChunk(off64_t *offset) { |
| if (*offset < 0) { |
| ALOGE("b/23540914"); |
| return ERROR_MALFORMED; |
| } |
| uint32_t hdr[2]; |
| if (mDataSource->readAt(*offset, hdr, 8) < 8) { |
| return ERROR_IO; |
| } |
| uint64_t chunk_size = ntohl(hdr[0]); |
| int32_t chunk_type = ntohl(hdr[1]); |
| off64_t data_offset = *offset + 8; |
| |
| if (chunk_size == 1) { |
| if (mDataSource->readAt(*offset + 8, &chunk_size, 8) < 8) { |
| return ERROR_IO; |
| } |
| chunk_size = ntoh64(chunk_size); |
| data_offset += 8; |
| |
| if (chunk_size < 16) { |
| // The smallest valid chunk is 16 bytes long in this case. |
| return ERROR_MALFORMED; |
| } |
| } else if (chunk_size == 0) { |
| // This shouldn't happen since we should never be top level |
| ALOGE("invalid chunk size 0 for non-top level box"); |
| return ERROR_MALFORMED; |
| } else if (chunk_size < 8) { |
| // The smallest valid chunk is 8 bytes long. |
| ALOGE("invalid chunk size: %lld", (long long)chunk_size); |
| return ERROR_MALFORMED; |
| } |
| |
| char chunk[5]; |
| MakeFourCCString(chunk_type, chunk); |
| ALOGV("chunk: %s @ %lld", chunk, (long long)*offset); |
| |
| off64_t chunk_data_size = chunk_size - (data_offset - *offset); |
| if (chunk_data_size < 0) { |
| ALOGE("b/23540914"); |
| return ERROR_MALFORMED; |
| } |
| |
| status_t err = onChunkData(chunk_type, data_offset, chunk_data_size); |
| |
| if (err != OK) { |
| return err; |
| } |
| *offset += chunk_size; |
| return OK; |
| } |
| |
| status_t Box::parseChunks(off64_t offset, size_t size) { |
| off64_t stopOffset = offset + size; |
| while (offset < stopOffset) { |
| status_t err = parseChunk(&offset); |
| if (err != OK) { |
| return err; |
| } |
| } |
| if (offset != stopOffset) { |
| return ERROR_MALFORMED; |
| } |
| return OK; |
| } |
| |
| /////////////////////////////////////////////////////////////////////// |
| |
| struct FullBox : public Box { |
| protected: |
| FullBox(DataSourceHelper *source, uint32_t type) : |
| Box(source, type), mVersion(0), mFlags(0) {} |
| |
| inline uint8_t version() const { return mVersion; } |
| |
| inline uint32_t flags() const { return mFlags; } |
| |
| status_t parseFullBoxHeader(off64_t *offset, size_t *size); |
| |
| private: |
| uint8_t mVersion; |
| uint32_t mFlags; |
| }; |
| |
| status_t FullBox::parseFullBoxHeader(off64_t *offset, size_t *size) { |
| if (*size < 4) { |
| return ERROR_MALFORMED; |
| } |
| if (!source()->readAt(*offset, &mVersion, 1)) { |
| return ERROR_IO; |
| } |
| if (!source()->getUInt24(*offset + 1, &mFlags)) { |
| return ERROR_IO; |
| } |
| *offset += 4; |
| *size -= 4; |
| return OK; |
| } |
| |
| ///////////////////////////////////////////////////////////////////// |
| // |
| // PrimaryImage box |
| // |
| |
| struct PitmBox : public FullBox { |
| PitmBox(DataSourceHelper *source) : |
| FullBox(source, FOURCC("pitm")) {} |
| |
| status_t parse(off64_t offset, size_t size, uint32_t *primaryItemId); |
| }; |
| |
| status_t PitmBox::parse(off64_t offset, size_t size, uint32_t *primaryItemId) { |
| status_t err = parseFullBoxHeader(&offset, &size); |
| if (err != OK) { |
| return err; |
| } |
| |
| size_t itemIdSize = (version() == 0) ? 2 : 4; |
| if (size < itemIdSize) { |
| return ERROR_MALFORMED; |
| } |
| uint32_t itemId; |
| if (!source()->getUInt32Var(offset, &itemId, itemIdSize)) { |
| return ERROR_IO; |
| } |
| |
| ALOGV("primary id %d", itemId); |
| *primaryItemId = itemId; |
| |
| return OK; |
| } |
| |
| ///////////////////////////////////////////////////////////////////// |
| // |
| // ItemLocation related boxes |
| // |
| |
| struct ExtentEntry { |
| uint64_t extentIndex; |
| uint64_t extentOffset; |
| uint64_t extentLength; |
| }; |
| |
| struct ItemLoc { |
| ItemLoc() : ItemLoc(0, 0, 0, 0) {} |
| ItemLoc(uint32_t item_id, uint16_t construction_method, |
| uint16_t data_reference_index, uint64_t base_offset) : |
| itemId(item_id), |
| constructionMethod(construction_method), |
| dataReferenceIndex(data_reference_index), |
| baseOffset(base_offset) {} |
| |
| void addExtent(const ExtentEntry& extent) { |
| extents.push_back(extent); |
| } |
| |
| status_t getLoc(off64_t *offset, size_t *size, |
| off64_t idatOffset, size_t idatSize) const { |
| // TODO: fix extent handling, fix constructionMethod = 2 |
| CHECK(extents.size() == 1); |
| if (constructionMethod == 0) { |
| *offset = baseOffset + extents[0].extentOffset; |
| *size = extents[0].extentLength; |
| return OK; |
| } else if (constructionMethod == 1) { |
| if (baseOffset + extents[0].extentOffset + extents[0].extentLength |
| > idatSize) { |
| return ERROR_MALFORMED; |
| } |
| *offset = baseOffset + extents[0].extentOffset + idatOffset; |
| *size = extents[0].extentLength; |
| return OK; |
| } |
| return ERROR_UNSUPPORTED; |
| } |
| |
| // parsed info |
| uint32_t itemId; |
| uint16_t constructionMethod; |
| uint16_t dataReferenceIndex; |
| off64_t baseOffset; |
| Vector<ExtentEntry> extents; |
| }; |
| |
| struct IlocBox : public FullBox { |
| IlocBox(DataSourceHelper *source, KeyedVector<uint32_t, ItemLoc> *itemLocs) : |
| FullBox(source, FOURCC("iloc")), |
| mItemLocs(itemLocs), mHasConstructMethod1(false) {} |
| |
| status_t parse(off64_t offset, size_t size); |
| |
| bool hasConstructMethod1() { return mHasConstructMethod1; } |
| |
| private: |
| static bool isSizeFieldValid(uint32_t offset_size) { |
| return offset_size == 0 || offset_size == 4 || offset_size == 8; |
| } |
| KeyedVector<uint32_t, ItemLoc> *mItemLocs; |
| bool mHasConstructMethod1; |
| }; |
| |
| status_t IlocBox::parse(off64_t offset, size_t size) { |
| status_t err = parseFullBoxHeader(&offset, &size); |
| if (err != OK) { |
| return err; |
| } |
| if (version() > 2) { |
| ALOGE("%s: invalid version %d", __FUNCTION__, version()); |
| return ERROR_MALFORMED; |
| } |
| |
| if (size < 2) { |
| return ERROR_MALFORMED; |
| } |
| uint8_t offset_size; |
| if (!source()->readAt(offset++, &offset_size, 1)) { |
| return ERROR_IO; |
| } |
| uint8_t length_size = (offset_size & 0xF); |
| offset_size >>= 4; |
| |
| uint8_t base_offset_size; |
| if (!source()->readAt(offset++, &base_offset_size, 1)) { |
| return ERROR_IO; |
| } |
| uint8_t index_size = 0; |
| if (version() == 1 || version() == 2) { |
| index_size = (base_offset_size & 0xF); |
| } |
| base_offset_size >>= 4; |
| size -= 2; |
| |
| if (!isSizeFieldValid(offset_size) |
| || !isSizeFieldValid(length_size) |
| || !isSizeFieldValid(base_offset_size) |
| || !isSizeFieldValid((index_size))) { |
| ALOGE("%s: offset size not valid: %d, %d, %d, %d", __FUNCTION__, |
| offset_size, length_size, base_offset_size, index_size); |
| return ERROR_MALFORMED; |
| } |
| |
| uint32_t item_count; |
| size_t itemFieldSize = version() < 2 ? 2 : 4; |
| if (size < itemFieldSize) { |
| return ERROR_MALFORMED; |
| } |
| if (!source()->getUInt32Var(offset, &item_count, itemFieldSize)) { |
| return ERROR_IO; |
| } |
| |
| ALOGV("item_count %lld", (long long) item_count); |
| offset += itemFieldSize; |
| size -= itemFieldSize; |
| |
| for (size_t i = 0; i < item_count; i++) { |
| uint32_t item_id; |
| if (!source()->getUInt32Var(offset, &item_id, itemFieldSize)) { |
| return ERROR_IO; |
| } |
| ALOGV("item[%zu]: id %lld", i, (long long)item_id); |
| offset += itemFieldSize; |
| |
| uint8_t construction_method = 0; |
| if (version() == 1 || version() == 2) { |
| uint8_t buf[2]; |
| if (!source()->readAt(offset, buf, 2)) { |
| return ERROR_IO; |
| } |
| construction_method = (buf[1] & 0xF); |
| ALOGV("construction_method %d", construction_method); |
| if (construction_method == 1) { |
| mHasConstructMethod1 = true; |
| } |
| |
| offset += 2; |
| } |
| |
| uint16_t data_reference_index; |
| if (!source()->getUInt16(offset, &data_reference_index)) { |
| return ERROR_IO; |
| } |
| ALOGV("data_reference_index %d", data_reference_index); |
| if (data_reference_index != 0) { |
| // we don't support reference to other files |
| return ERROR_UNSUPPORTED; |
| } |
| offset += 2; |
| |
| uint64_t base_offset = 0; |
| if (base_offset_size != 0) { |
| if (!source()->getUInt64Var(offset, &base_offset, base_offset_size)) { |
| return ERROR_IO; |
| } |
| offset += base_offset_size; |
| } |
| ALOGV("base_offset %lld", (long long) base_offset); |
| |
| ssize_t index = mItemLocs->add(item_id, ItemLoc( |
| item_id, construction_method, data_reference_index, base_offset)); |
| ItemLoc &item = mItemLocs->editValueAt(index); |
| |
| uint16_t extent_count; |
| if (!source()->getUInt16(offset, &extent_count)) { |
| return ERROR_IO; |
| } |
| ALOGV("extent_count %d", extent_count); |
| |
| if (extent_count > 1) { |
| return ERROR_UNSUPPORTED; |
| } |
| offset += 2; |
| |
| for (size_t j = 0; j < extent_count; j++) { |
| uint64_t extent_index = 1; // default=1 |
| if ((version() == 1 || version() == 2) && (index_size > 0)) { |
| if (!source()->getUInt64Var(offset, &extent_index, index_size)) { |
| return ERROR_IO; |
| } |
| // TODO: add support for this mode |
| offset += index_size; |
| ALOGV("extent_index %lld", (long long)extent_index); |
| } |
| |
| uint64_t extent_offset = 0; // default=0 |
| if (offset_size > 0) { |
| if (!source()->getUInt64Var(offset, &extent_offset, offset_size)) { |
| return ERROR_IO; |
| } |
| offset += offset_size; |
| } |
| ALOGV("extent_offset %lld", (long long)extent_offset); |
| |
| uint64_t extent_length = 0; // this indicates full length of file |
| if (length_size > 0) { |
| if (!source()->getUInt64Var(offset, &extent_length, length_size)) { |
| return ERROR_IO; |
| } |
| offset += length_size; |
| } |
| ALOGV("extent_length %lld", (long long)extent_length); |
| |
| item.addExtent({ extent_index, extent_offset, extent_length }); |
| } |
| } |
| return OK; |
| } |
| |
| ///////////////////////////////////////////////////////////////////// |
| // |
| // ItemReference related boxes |
| // |
| |
| struct ItemReference : public Box, public RefBase { |
| ItemReference(DataSourceHelper *source, uint32_t type, uint32_t itemIdSize) : |
| Box(source, type), mItemId(0), mRefIdSize(itemIdSize) {} |
| |
| status_t parse(off64_t offset, size_t size); |
| |
| uint32_t itemId() { return mItemId; } |
| |
| void apply( |
| KeyedVector<uint32_t, ImageItem> &itemIdToItemMap, |
| KeyedVector<uint32_t, ExifItem> &itemIdToExifMap) const; |
| |
| private: |
| uint32_t mItemId; |
| uint32_t mRefIdSize; |
| Vector<uint32_t> mRefs; |
| |
| DISALLOW_EVIL_CONSTRUCTORS(ItemReference); |
| }; |
| |
| void ItemReference::apply( |
| KeyedVector<uint32_t, ImageItem> &itemIdToItemMap, |
| KeyedVector<uint32_t, ExifItem> &itemIdToExifMap) const { |
| ALOGV("attach reference type 0x%x to item id %d)", type(), mItemId); |
| |
| switch(type()) { |
| case FOURCC("dimg"): { |
| ssize_t itemIndex = itemIdToItemMap.indexOfKey(mItemId); |
| |
| // ignore non-image items |
| if (itemIndex < 0) { |
| return; |
| } |
| |
| ImageItem &derivedImage = itemIdToItemMap.editValueAt(itemIndex); |
| if (!derivedImage.dimgRefs.empty()) { |
| ALOGW("dimgRefs not clean!"); |
| } |
| derivedImage.dimgRefs.appendVector(mRefs); |
| |
| for (size_t i = 0; i < mRefs.size(); i++) { |
| itemIndex = itemIdToItemMap.indexOfKey(mRefs[i]); |
| |
| // ignore non-image items |
| if (itemIndex < 0) { |
| continue; |
| } |
| ImageItem &sourceImage = itemIdToItemMap.editValueAt(itemIndex); |
| |
| // mark the source image of the derivation as hidden |
| sourceImage.hidden = true; |
| } |
| break; |
| } |
| case FOURCC("thmb"): { |
| ssize_t itemIndex = itemIdToItemMap.indexOfKey(mItemId); |
| |
| // ignore non-image items |
| if (itemIndex < 0) { |
| return; |
| } |
| |
| // mark thumbnail image as hidden, these can be retrieved if the client |
| // request thumbnail explicitly, but won't be exposed as displayables. |
| ImageItem &thumbImage = itemIdToItemMap.editValueAt(itemIndex); |
| thumbImage.hidden = true; |
| |
| for (size_t i = 0; i < mRefs.size(); i++) { |
| itemIndex = itemIdToItemMap.indexOfKey(mRefs[i]); |
| |
| // ignore non-image items |
| if (itemIndex < 0) { |
| continue; |
| } |
| ALOGV("Image item id %d uses thumbnail item id %d", mRefs[i], mItemId); |
| ImageItem &imageItem = itemIdToItemMap.editValueAt(itemIndex); |
| if (!imageItem.thumbnails.empty()) { |
| ALOGW("already has thumbnails!"); |
| } |
| imageItem.thumbnails.push_back(mItemId); |
| } |
| break; |
| } |
| case FOURCC("cdsc"): { |
| ssize_t itemIndex = itemIdToExifMap.indexOfKey(mItemId); |
| |
| // ignore non-exif block items |
| if (itemIndex < 0) { |
| return; |
| } |
| |
| for (size_t i = 0; i < mRefs.size(); i++) { |
| itemIndex = itemIdToItemMap.indexOfKey(mRefs[i]); |
| |
| // ignore non-image items |
| if (itemIndex < 0) { |
| continue; |
| } |
| ALOGV("Image item id %d uses metadata item id %d", mRefs[i], mItemId); |
| ImageItem &image = itemIdToItemMap.editValueAt(itemIndex); |
| image.cdscRefs.push_back(mItemId); |
| } |
| break; |
| } |
| case FOURCC("auxl"): { |
| ssize_t itemIndex = itemIdToItemMap.indexOfKey(mItemId); |
| |
| // ignore non-image items |
| if (itemIndex < 0) { |
| return; |
| } |
| |
| // mark auxiliary image as hidden |
| ImageItem &auxImage = itemIdToItemMap.editValueAt(itemIndex); |
| auxImage.hidden = true; |
| break; |
| } |
| default: |
| ALOGW("ignoring unsupported ref type 0x%x", type()); |
| } |
| } |
| |
| status_t ItemReference::parse(off64_t offset, size_t size) { |
| if (size < mRefIdSize + 2) { |
| return ERROR_MALFORMED; |
| } |
| if (!source()->getUInt32Var(offset, &mItemId, mRefIdSize)) { |
| return ERROR_IO; |
| } |
| offset += mRefIdSize; |
| |
| uint16_t count; |
| if (!source()->getUInt16(offset, &count)) { |
| return ERROR_IO; |
| } |
| offset += 2; |
| size -= (mRefIdSize + 2); |
| |
| if (size < count * mRefIdSize) { |
| return ERROR_MALFORMED; |
| } |
| |
| for (size_t i = 0; i < count; i++) { |
| uint32_t refItemId; |
| if (!source()->getUInt32Var(offset, &refItemId, mRefIdSize)) { |
| return ERROR_IO; |
| } |
| offset += mRefIdSize; |
| mRefs.push_back(refItemId); |
| ALOGV("item id %d: referencing item id %d", mItemId, refItemId); |
| } |
| |
| return OK; |
| } |
| |
| struct IrefBox : public FullBox { |
| IrefBox(DataSourceHelper *source, Vector<sp<ItemReference> > *itemRefs) : |
| FullBox(source, FOURCC("iref")), mRefIdSize(0), mItemRefs(itemRefs) {} |
| |
| status_t parse(off64_t offset, size_t size); |
| |
| protected: |
| status_t onChunkData(uint32_t type, off64_t offset, size_t size) override; |
| |
| private: |
| uint32_t mRefIdSize; |
| Vector<sp<ItemReference> > *mItemRefs; |
| }; |
| |
| status_t IrefBox::parse(off64_t offset, size_t size) { |
| ALOGV("%s: offset %lld, size %zu", __FUNCTION__, (long long)offset, size); |
| status_t err = parseFullBoxHeader(&offset, &size); |
| if (err != OK) { |
| return err; |
| } |
| |
| mRefIdSize = (version() == 0) ? 2 : 4; |
| return parseChunks(offset, size); |
| } |
| |
| status_t IrefBox::onChunkData(uint32_t type, off64_t offset, size_t size) { |
| sp<ItemReference> itemRef = new ItemReference(source(), type, mRefIdSize); |
| |
| status_t err = itemRef->parse(offset, size); |
| if (err != OK) { |
| return err; |
| } |
| mItemRefs->push_back(itemRef); |
| return OK; |
| } |
| |
| ///////////////////////////////////////////////////////////////////// |
| // |
| // ItemProperty related boxes |
| // |
| |
| struct AssociationEntry { |
| uint32_t itemId; |
| bool essential; |
| uint16_t index; |
| }; |
| |
| struct ItemProperty : public RefBase { |
| ItemProperty() {} |
| |
| virtual void attachTo(ImageItem &/*image*/) const { |
| ALOGW("Unrecognized property"); |
| } |
| virtual status_t parse(off64_t /*offset*/, size_t /*size*/) { |
| ALOGW("Unrecognized property"); |
| return OK; |
| } |
| |
| private: |
| DISALLOW_EVIL_CONSTRUCTORS(ItemProperty); |
| }; |
| |
| struct IspeBox : public FullBox, public ItemProperty { |
| IspeBox(DataSourceHelper *source) : |
| FullBox(source, FOURCC("ispe")), mWidth(0), mHeight(0) {} |
| |
| status_t parse(off64_t offset, size_t size) override; |
| |
| void attachTo(ImageItem &image) const override { |
| image.width = mWidth; |
| image.height = mHeight; |
| } |
| |
| private: |
| int32_t mWidth; |
| int32_t mHeight; |
| }; |
| |
| status_t IspeBox::parse(off64_t offset, size_t size) { |
| ALOGV("%s: offset %lld, size %zu", __FUNCTION__, (long long)offset, size); |
| |
| status_t err = parseFullBoxHeader(&offset, &size); |
| if (err != OK) { |
| return err; |
| } |
| |
| if (size < 8) { |
| return ERROR_MALFORMED; |
| } |
| if (!source()->getUInt32(offset, (uint32_t *)&mWidth) |
| || !source()->getUInt32(offset + 4, (uint32_t *)&mHeight)) { |
| return ERROR_IO; |
| } |
| |
| // Validate that the dimension doesn't cause overflow on calculated max input size. |
| // Max input size is width*height*1.5, restrict width*height to 1<<29 so that |
| // we don't need to cast to int64_t when doing mults. |
| if (mWidth <= 0 || mHeight <= 0 || mWidth > (1 << 29) / mHeight) { |
| return ERROR_MALFORMED; |
| } |
| |
| ALOGV("property ispe: %dx%d", mWidth, mHeight); |
| return OK; |
| } |
| |
| struct HvccBox : public Box, public ItemProperty { |
| HvccBox(DataSourceHelper *source) : |
| Box(source, FOURCC("hvcC")) {} |
| |
| status_t parse(off64_t offset, size_t size) override; |
| |
| void attachTo(ImageItem &image) const override { |
| image.hvcc = mHVCC; |
| } |
| |
| private: |
| sp<ABuffer> mHVCC; |
| }; |
| |
| status_t HvccBox::parse(off64_t offset, size_t size) { |
| ALOGV("%s: offset %lld, size %zu", __FUNCTION__, (long long)offset, size); |
| |
| mHVCC = new ABuffer(size); |
| |
| if (mHVCC->data() == NULL) { |
| ALOGE("b/28471206"); |
| return NO_MEMORY; |
| } |
| |
| if (source()->readAt(offset, mHVCC->data(), size) < (ssize_t)size) { |
| return ERROR_IO; |
| } |
| |
| ALOGV("property hvcC"); |
| |
| return OK; |
| } |
| |
| struct IrotBox : public Box, public ItemProperty { |
| IrotBox(DataSourceHelper *source) : |
| Box(source, FOURCC("irot")), mAngle(0) {} |
| |
| status_t parse(off64_t offset, size_t size) override; |
| |
| void attachTo(ImageItem &image) const override { |
| image.rotation = mAngle * 90; |
| } |
| |
| private: |
| uint8_t mAngle; |
| }; |
| |
| status_t IrotBox::parse(off64_t offset, size_t size) { |
| ALOGV("%s: offset %lld, size %zu", __FUNCTION__, (long long)offset, size); |
| |
| if (size < 1) { |
| return ERROR_MALFORMED; |
| } |
| if (source()->readAt(offset, &mAngle, 1) != 1) { |
| return ERROR_IO; |
| } |
| mAngle &= 0x3; |
| ALOGV("property irot: %d", mAngle); |
| |
| return OK; |
| } |
| |
| struct ColrBox : public Box, public ItemProperty { |
| ColrBox(DataSourceHelper *source) : |
| Box(source, FOURCC("colr")) {} |
| |
| status_t parse(off64_t offset, size_t size) override; |
| |
| void attachTo(ImageItem &image) const override { |
| image.icc = mICCData; |
| } |
| |
| private: |
| sp<ABuffer> mICCData; |
| }; |
| |
| status_t ColrBox::parse(off64_t offset, size_t size) { |
| ALOGV("%s: offset %lld, size %zu", __FUNCTION__, (long long)offset, size); |
| |
| if (size < 4) { |
| return ERROR_MALFORMED; |
| } |
| uint32_t colour_type; |
| if (!source()->getUInt32(offset, &colour_type)) { |
| return ERROR_IO; |
| } |
| offset += 4; |
| size -= 4; |
| if (colour_type == FOURCC("nclx")) { |
| return OK; |
| } |
| if ((colour_type != FOURCC("rICC")) && |
| (colour_type != FOURCC("prof"))) { |
| return ERROR_MALFORMED; |
| } |
| |
| mICCData = new ABuffer(size); |
| if (mICCData->data() == NULL) { |
| ALOGE("b/28471206"); |
| return NO_MEMORY; |
| } |
| |
| if (source()->readAt(offset, mICCData->data(), size) != (ssize_t)size) { |
| return ERROR_IO; |
| } |
| |
| ALOGV("property Colr: size %zd", size); |
| return OK; |
| } |
| |
| struct IpmaBox : public FullBox { |
| IpmaBox(DataSourceHelper *source, Vector<AssociationEntry> *associations) : |
| FullBox(source, FOURCC("ipma")), mAssociations(associations) {} |
| |
| status_t parse(off64_t offset, size_t size); |
| private: |
| Vector<AssociationEntry> *mAssociations; |
| }; |
| |
| status_t IpmaBox::parse(off64_t offset, size_t size) { |
| status_t err = parseFullBoxHeader(&offset, &size); |
| if (err != OK) { |
| return err; |
| } |
| |
| if (size < 4) { |
| return ERROR_MALFORMED; |
| } |
| uint32_t entryCount; |
| if (!source()->getUInt32(offset, &entryCount)) { |
| return ERROR_IO; |
| } |
| offset += 4; |
| size -= 4; |
| |
| for (size_t k = 0; k < entryCount; ++k) { |
| uint32_t itemId = 0; |
| size_t itemIdSize = (version() < 1) ? 2 : 4; |
| |
| if (size < itemIdSize + 1) { |
| return ERROR_MALFORMED; |
| } |
| |
| if (!source()->getUInt32Var(offset, &itemId, itemIdSize)) { |
| return ERROR_IO; |
| } |
| offset += itemIdSize; |
| size -= itemIdSize; |
| |
| uint8_t associationCount; |
| if (!source()->readAt(offset, &associationCount, 1)) { |
| return ERROR_IO; |
| } |
| offset++; |
| size--; |
| |
| for (size_t i = 0; i < associationCount; ++i) { |
| size_t propIndexSize = (flags() & 1) ? 2 : 1; |
| if (size < propIndexSize) { |
| return ERROR_MALFORMED; |
| } |
| uint16_t propIndex; |
| if (!source()->getUInt16Var(offset, &propIndex, propIndexSize)) { |
| return ERROR_IO; |
| } |
| offset += propIndexSize; |
| size -= propIndexSize; |
| uint16_t bitmask = (1 << (8 * propIndexSize - 1)); |
| AssociationEntry entry = { |
| .itemId = itemId, |
| .essential = !!(propIndex & bitmask), |
| .index = (uint16_t) (propIndex & ~bitmask) |
| }; |
| |
| ALOGV("item id %d associated to property %d (essential %d)", |
| itemId, entry.index, entry.essential); |
| |
| mAssociations->push_back(entry); |
| } |
| } |
| |
| return OK; |
| } |
| |
| struct IpcoBox : public Box { |
| IpcoBox(DataSourceHelper *source, Vector<sp<ItemProperty> > *properties) : |
| Box(source, FOURCC("ipco")), mItemProperties(properties) {} |
| |
| status_t parse(off64_t offset, size_t size); |
| protected: |
| status_t onChunkData(uint32_t type, off64_t offset, size_t size) override; |
| |
| private: |
| Vector<sp<ItemProperty> > *mItemProperties; |
| }; |
| |
| status_t IpcoBox::parse(off64_t offset, size_t size) { |
| ALOGV("%s: offset %lld, size %zu", __FUNCTION__, (long long)offset, size); |
| // push a placeholder as the index is 1-based |
| mItemProperties->push_back(new ItemProperty()); |
| return parseChunks(offset, size); |
| } |
| |
| status_t IpcoBox::onChunkData(uint32_t type, off64_t offset, size_t size) { |
| sp<ItemProperty> itemProperty; |
| switch(type) { |
| case FOURCC("hvcC"): |
| { |
| itemProperty = new HvccBox(source()); |
| break; |
| } |
| case FOURCC("ispe"): |
| { |
| itemProperty = new IspeBox(source()); |
| break; |
| } |
| case FOURCC("irot"): |
| { |
| itemProperty = new IrotBox(source()); |
| break; |
| } |
| case FOURCC("colr"): |
| { |
| itemProperty = new ColrBox(source()); |
| break; |
| } |
| default: |
| { |
| // push dummy to maintain correct item property index |
| itemProperty = new ItemProperty(); |
| break; |
| } |
| } |
| status_t err = itemProperty->parse(offset, size); |
| if (err != OK) { |
| return err; |
| } |
| mItemProperties->push_back(itemProperty); |
| return OK; |
| } |
| |
| struct IprpBox : public Box { |
| IprpBox(DataSourceHelper *source, |
| Vector<sp<ItemProperty> > *properties, |
| Vector<AssociationEntry> *associations) : |
| Box(source, FOURCC("iprp")), |
| mProperties(properties), mAssociations(associations) {} |
| |
| status_t parse(off64_t offset, size_t size); |
| protected: |
| status_t onChunkData(uint32_t type, off64_t offset, size_t size) override; |
| |
| private: |
| Vector<sp<ItemProperty> > *mProperties; |
| Vector<AssociationEntry> *mAssociations; |
| }; |
| |
| status_t IprpBox::parse(off64_t offset, size_t size) { |
| ALOGV("%s: offset %lld, size %zu", __FUNCTION__, (long long)offset, size); |
| |
| status_t err = parseChunks(offset, size); |
| if (err != OK) { |
| return err; |
| } |
| return OK; |
| } |
| |
| status_t IprpBox::onChunkData(uint32_t type, off64_t offset, size_t size) { |
| switch(type) { |
| case FOURCC("ipco"): |
| { |
| IpcoBox ipcoBox(source(), mProperties); |
| return ipcoBox.parse(offset, size); |
| } |
| case FOURCC("ipma"): |
| { |
| IpmaBox ipmaBox(source(), mAssociations); |
| return ipmaBox.parse(offset, size); |
| } |
| default: |
| { |
| ALOGW("Unrecognized box."); |
| break; |
| } |
| } |
| return OK; |
| } |
| |
| ///////////////////////////////////////////////////////////////////// |
| // |
| // ItemInfo related boxes |
| // |
| struct ItemInfo { |
| uint32_t itemId; |
| uint32_t itemType; |
| bool hidden; |
| }; |
| |
| struct InfeBox : public FullBox { |
| InfeBox(DataSourceHelper *source) : |
| FullBox(source, FOURCC("infe")) {} |
| |
| status_t parse(off64_t offset, size_t size, ItemInfo *itemInfo); |
| |
| private: |
| bool parseNullTerminatedString(off64_t *offset, size_t *size, String8 *out); |
| }; |
| |
| bool InfeBox::parseNullTerminatedString( |
| off64_t *offset, size_t *size, String8 *out) { |
| char tmp; |
| Vector<char> buf; |
| buf.setCapacity(256); |
| off64_t newOffset = *offset; |
| off64_t stopOffset = *offset + *size; |
| while (newOffset < stopOffset) { |
| if (!source()->readAt(newOffset++, &tmp, 1)) { |
| return false; |
| } |
| buf.push_back(tmp); |
| if (tmp == 0) { |
| out->setTo(buf.array()); |
| |
| *offset = newOffset; |
| *size = stopOffset - newOffset; |
| |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| status_t InfeBox::parse(off64_t offset, size_t size, ItemInfo *itemInfo) { |
| status_t err = parseFullBoxHeader(&offset, &size); |
| if (err != OK) { |
| return err; |
| } |
| |
| if (version() == 0 || version() == 1) { |
| return ERROR_UNSUPPORTED; |
| } else { // version >= 2 |
| uint32_t item_id; |
| size_t itemIdSize = (version() == 2) ? 2 : 4; |
| if (size < itemIdSize + 6) { |
| return ERROR_MALFORMED; |
| } |
| if (!source()->getUInt32Var(offset, &item_id, itemIdSize)) { |
| return ERROR_IO; |
| } |
| ALOGV("item_id %d", item_id); |
| offset += itemIdSize; |
| uint16_t item_protection_index; |
| if (!source()->getUInt16(offset, &item_protection_index)) { |
| return ERROR_IO; |
| } |
| ALOGV("item_protection_index %d", item_protection_index); |
| offset += 2; |
| uint32_t item_type; |
| if (!source()->getUInt32(offset, &item_type)) { |
| return ERROR_IO; |
| } |
| |
| itemInfo->itemId = item_id; |
| itemInfo->itemType = item_type; |
| // According to HEIF spec, (flags & 1) indicates the image is hidden |
| // and not supposed to be displayed. |
| itemInfo->hidden = (flags() & 1); |
| |
| char itemTypeString[5]; |
| MakeFourCCString(item_type, itemTypeString); |
| ALOGV("item_type %s", itemTypeString); |
| offset += 4; |
| size -= itemIdSize + 6; |
| |
| String8 item_name; |
| if (!parseNullTerminatedString(&offset, &size, &item_name)) { |
| return ERROR_MALFORMED; |
| } |
| ALOGV("item_name %s", item_name.c_str()); |
| |
| if (item_type == FOURCC("mime")) { |
| String8 content_type; |
| if (!parseNullTerminatedString(&offset, &size, &content_type)) { |
| return ERROR_MALFORMED; |
| } |
| |
| // content_encoding is optional; can be omitted if would be empty |
| if (size > 0) { |
| String8 content_encoding; |
| if (!parseNullTerminatedString(&offset, &size, &content_encoding)) { |
| return ERROR_MALFORMED; |
| } |
| } |
| } else if (item_type == FOURCC("uri ")) { |
| String8 item_uri_type; |
| if (!parseNullTerminatedString(&offset, &size, &item_uri_type)) { |
| return ERROR_MALFORMED; |
| } |
| } |
| } |
| return OK; |
| } |
| |
| struct IinfBox : public FullBox { |
| IinfBox(DataSourceHelper *source, Vector<ItemInfo> *itemInfos) : |
| FullBox(source, FOURCC("iinf")), mItemInfos(itemInfos) {} |
| |
| status_t parse(off64_t offset, size_t size); |
| |
| bool hasFourCC(uint32_t type) { return mFourCCSeen.count(type) > 0; } |
| |
| protected: |
| status_t onChunkData(uint32_t type, off64_t offset, size_t size) override; |
| |
| private: |
| Vector<ItemInfo> *mItemInfos; |
| std::unordered_set<uint32_t> mFourCCSeen; |
| }; |
| |
| status_t IinfBox::parse(off64_t offset, size_t size) { |
| ALOGV("%s: offset %lld, size %zu", __FUNCTION__, (long long)offset, size); |
| |
| status_t err = parseFullBoxHeader(&offset, &size); |
| if (err != OK) { |
| return err; |
| } |
| |
| size_t entryCountSize = version() == 0 ? 2 : 4; |
| if (size < entryCountSize) { |
| return ERROR_MALFORMED; |
| } |
| uint32_t entry_count; |
| if (!source()->getUInt32Var(offset, &entry_count, entryCountSize)) { |
| return ERROR_IO; |
| } |
| ALOGV("entry_count %d", entry_count); |
| |
| off64_t stopOffset = offset + size; |
| offset += entryCountSize; |
| for (size_t i = 0; i < entry_count && offset < stopOffset; i++) { |
| ALOGV("entry %zu", i); |
| status_t err = parseChunk(&offset); |
| if (err != OK) { |
| return err; |
| } |
| } |
| if (offset != stopOffset) { |
| return ERROR_MALFORMED; |
| } |
| |
| return OK; |
| } |
| |
| status_t IinfBox::onChunkData(uint32_t type, off64_t offset, size_t size) { |
| if (type != FOURCC("infe")) { |
| return OK; |
| } |
| |
| InfeBox infeBox(source()); |
| ItemInfo itemInfo; |
| status_t err = infeBox.parse(offset, size, &itemInfo); |
| if (err == OK) { |
| mItemInfos->push_back(itemInfo); |
| mFourCCSeen.insert(itemInfo.itemType); |
| } |
| // InfeBox parse returns ERROR_UNSUPPORTED if the box if an unsupported |
| // version. Ignore this error as it's not fatal. |
| return (err == ERROR_UNSUPPORTED) ? OK : err; |
| } |
| |
| ////////////////////////////////////////////////////////////////// |
| |
| ItemTable::ItemTable(DataSourceHelper *source) |
| : mDataSource(source), |
| mPrimaryItemId(0), |
| mIdatOffset(0), |
| mIdatSize(0), |
| mImageItemsValid(false), |
| mCurrentItemIndex(0) { |
| mRequiredBoxes.insert('iprp'); |
| mRequiredBoxes.insert('iloc'); |
| mRequiredBoxes.insert('pitm'); |
| mRequiredBoxes.insert('iinf'); |
| } |
| |
| ItemTable::~ItemTable() {} |
| |
| status_t ItemTable::parse(uint32_t type, off64_t data_offset, size_t chunk_data_size) { |
| switch(type) { |
| case FOURCC("iloc"): |
| { |
| return parseIlocBox(data_offset, chunk_data_size); |
| } |
| case FOURCC("iinf"): |
| { |
| return parseIinfBox(data_offset, chunk_data_size); |
| } |
| case FOURCC("iprp"): |
| { |
| return parseIprpBox(data_offset, chunk_data_size); |
| } |
| case FOURCC("pitm"): |
| { |
| return parsePitmBox(data_offset, chunk_data_size); |
| } |
| case FOURCC("idat"): |
| { |
| return parseIdatBox(data_offset, chunk_data_size); |
| } |
| case FOURCC("iref"): |
| { |
| return parseIrefBox(data_offset, chunk_data_size); |
| } |
| case FOURCC("ipro"): |
| { |
| ALOGW("ipro box not supported!"); |
| break; |
| } |
| default: |
| { |
| ALOGW("unrecognized box type: 0x%x", type); |
| break; |
| } |
| } |
| return ERROR_UNSUPPORTED; |
| } |
| |
| status_t ItemTable::parseIlocBox(off64_t offset, size_t size) { |
| ALOGV("%s: offset %lld, size %zu", __FUNCTION__, (long long)offset, size); |
| |
| IlocBox ilocBox(mDataSource, &mItemLocs); |
| status_t err = ilocBox.parse(offset, size); |
| if (err != OK) { |
| return err; |
| } |
| |
| if (ilocBox.hasConstructMethod1()) { |
| mRequiredBoxes.insert('idat'); |
| } |
| |
| return buildImageItemsIfPossible('iloc'); |
| } |
| |
| status_t ItemTable::parseIinfBox(off64_t offset, size_t size) { |
| ALOGV("%s: offset %lld, size %zu", __FUNCTION__, (long long)offset, size); |
| |
| IinfBox iinfBox(mDataSource, &mItemInfos); |
| status_t err = iinfBox.parse(offset, size); |
| if (err != OK) { |
| return err; |
| } |
| |
| if (iinfBox.hasFourCC(FOURCC("grid")) || iinfBox.hasFourCC(FOURCC("Exif"))) { |
| mRequiredBoxes.insert('iref'); |
| } |
| |
| return buildImageItemsIfPossible('iinf'); |
| } |
| |
| status_t ItemTable::parsePitmBox(off64_t offset, size_t size) { |
| ALOGV("%s: offset %lld, size %zu", __FUNCTION__, (long long)offset, size); |
| |
| PitmBox pitmBox(mDataSource); |
| status_t err = pitmBox.parse(offset, size, &mPrimaryItemId); |
| if (err != OK) { |
| return err; |
| } |
| |
| return buildImageItemsIfPossible('pitm'); |
| } |
| |
| status_t ItemTable::parseIprpBox(off64_t offset, size_t size) { |
| ALOGV("%s: offset %lld, size %zu", __FUNCTION__, (long long)offset, size); |
| |
| IprpBox iprpBox(mDataSource, &mItemProperties, &mAssociations); |
| status_t err = iprpBox.parse(offset, size); |
| if (err != OK) { |
| return err; |
| } |
| |
| return buildImageItemsIfPossible('iprp'); |
| } |
| |
| status_t ItemTable::parseIdatBox(off64_t offset, size_t size) { |
| ALOGV("%s: idat offset %lld, size %zu", __FUNCTION__, (long long)offset, size); |
| |
| // only remember the offset and size of idat box for later use |
| mIdatOffset = offset; |
| mIdatSize = size; |
| |
| return buildImageItemsIfPossible('idat'); |
| } |
| |
| status_t ItemTable::parseIrefBox(off64_t offset, size_t size) { |
| ALOGV("%s: offset %lld, size %zu", __FUNCTION__, (long long)offset, size); |
| |
| IrefBox irefBox(mDataSource, &mItemReferences); |
| status_t err = irefBox.parse(offset, size); |
| if (err != OK) { |
| return err; |
| } |
| |
| return buildImageItemsIfPossible('iref'); |
| } |
| |
| status_t ItemTable::buildImageItemsIfPossible(uint32_t type) { |
| if (mImageItemsValid) { |
| return OK; |
| } |
| |
| mBoxesSeen.insert(type); |
| |
| // need at least 'iprp', 'iloc', 'pitm', 'iinf'; |
| // need 'idat' if any items used construction_method of 2; |
| // need 'iref' if there are grids. |
| if (!std::includes( |
| mBoxesSeen.begin(), mBoxesSeen.end(), |
| mRequiredBoxes.begin(), mRequiredBoxes.end())) { |
| return OK; |
| } |
| |
| ALOGV("building image table..."); |
| |
| for (size_t i = 0; i < mItemInfos.size(); i++) { |
| const ItemInfo &info = mItemInfos[i]; |
| |
| // Only handle 3 types of items, all others are ignored: |
| // 'grid': derived image from tiles |
| // 'hvc1': coded image (or tile) |
| // 'Exif': EXIF metadata |
| if (info.itemType != FOURCC("grid") && |
| info.itemType != FOURCC("hvc1") && |
| info.itemType != FOURCC("Exif")) { |
| continue; |
| } |
| |
| ssize_t itemIndex = mItemIdToItemMap.indexOfKey(info.itemId); |
| if (itemIndex >= 0) { |
| ALOGW("ignoring duplicate image item id %d", info.itemId); |
| continue; |
| } |
| |
| ssize_t ilocIndex = mItemLocs.indexOfKey(info.itemId); |
| if (ilocIndex < 0) { |
| ALOGE("iloc missing for image item id %d", info.itemId); |
| continue; |
| } |
| const ItemLoc &iloc = mItemLocs[ilocIndex]; |
| |
| off64_t offset; |
| size_t size; |
| if (iloc.getLoc(&offset, &size, mIdatOffset, mIdatSize) != OK) { |
| return ERROR_MALFORMED; |
| } |
| |
| if (info.itemType == FOURCC("Exif")) { |
| // Only add if the Exif data is non-empty. The first 4 bytes contain |
| // the offset to TIFF header, which the Exif parser doesn't use. |
| if (size > 4) { |
| ExifItem exifItem = { |
| .offset = offset, |
| .size = size, |
| }; |
| mItemIdToExifMap.add(info.itemId, exifItem); |
| } |
| continue; |
| } |
| |
| ImageItem image(info.itemType, info.itemId, info.hidden); |
| |
| ALOGV("adding %s: itemId %d", image.isGrid() ? "grid" : "image", info.itemId); |
| |
| if (image.isGrid()) { |
| // ImageGrid struct is at least 8-byte, at most 12-byte (if flags&1) |
| if (size < 8 || size > 12) { |
| return ERROR_MALFORMED; |
| } |
| uint8_t buf[12]; |
| if (!mDataSource->readAt(offset, buf, size)) { |
| return ERROR_IO; |
| } |
| |
| image.rows = buf[2] + 1; |
| image.columns = buf[3] + 1; |
| |
| ALOGV("rows %d, columans %d", image.rows, image.columns); |
| } else { |
| image.offset = offset; |
| image.size = size; |
| } |
| mItemIdToItemMap.add(info.itemId, image); |
| } |
| |
| for (size_t i = 0; i < mAssociations.size(); i++) { |
| attachProperty(mAssociations[i]); |
| } |
| |
| for (size_t i = 0; i < mItemReferences.size(); i++) { |
| mItemReferences[i]->apply(mItemIdToItemMap, mItemIdToExifMap); |
| } |
| |
| bool foundPrimary = false; |
| for (size_t i = 0; i < mItemIdToItemMap.size(); i++) { |
| // add all non-hidden images, also add the primary even if it's marked |
| // hidden, in case the primary is set to a thumbnail |
| bool isPrimary = (mItemIdToItemMap[i].itemId == mPrimaryItemId); |
| if (!mItemIdToItemMap[i].hidden || isPrimary) { |
| mDisplayables.push_back(i); |
| } |
| foundPrimary |= isPrimary; |
| } |
| |
| ALOGV("found %zu displayables", mDisplayables.size()); |
| |
| // fail if no displayables are found |
| if (mDisplayables.empty()) { |
| return ERROR_MALFORMED; |
| } |
| |
| // if the primary item id is invalid, set primary to the first displayable |
| if (!foundPrimary) { |
| mPrimaryItemId = mItemIdToItemMap[mDisplayables[0]].itemId; |
| } |
| |
| mImageItemsValid = true; |
| return OK; |
| } |
| |
| void ItemTable::attachProperty(const AssociationEntry &association) { |
| ssize_t itemIndex = mItemIdToItemMap.indexOfKey(association.itemId); |
| |
| // ignore non-image items |
| if (itemIndex < 0) { |
| return; |
| } |
| |
| uint16_t propertyIndex = association.index; |
| if (propertyIndex >= mItemProperties.size()) { |
| ALOGW("Ignoring invalid property index %d", propertyIndex); |
| return; |
| } |
| |
| ALOGV("attach property %d to item id %d)", |
| propertyIndex, association.itemId); |
| |
| mItemProperties[propertyIndex]->attachTo(mItemIdToItemMap.editValueAt(itemIndex)); |
| } |
| |
| uint32_t ItemTable::countImages() const { |
| return mImageItemsValid ? mDisplayables.size() : 0; |
| } |
| |
| AMediaFormat *ItemTable::getImageMeta(const uint32_t imageIndex) { |
| if (!mImageItemsValid) { |
| return NULL; |
| } |
| |
| if (imageIndex >= mDisplayables.size()) { |
| ALOGE("%s: invalid image index %u", __FUNCTION__, imageIndex); |
| return NULL; |
| } |
| const uint32_t itemIndex = mDisplayables[imageIndex]; |
| ALOGV("image[%u]: item index %u", imageIndex, itemIndex); |
| |
| const ImageItem *image = &mItemIdToItemMap[itemIndex]; |
| |
| ssize_t tileItemIndex = -1; |
| if (image->isGrid()) { |
| if (image->dimgRefs.empty()) { |
| return NULL; |
| } |
| tileItemIndex = mItemIdToItemMap.indexOfKey(image->dimgRefs[0]); |
| if (tileItemIndex < 0) { |
| return NULL; |
| } |
| } |
| |
| AMediaFormat *meta = AMediaFormat_new(); |
| AMediaFormat_setString(meta, AMEDIAFORMAT_KEY_MIME, MEDIA_MIMETYPE_IMAGE_ANDROID_HEIC); |
| |
| if (image->itemId == mPrimaryItemId) { |
| AMediaFormat_setInt32(meta, AMEDIAFORMAT_KEY_IS_DEFAULT, 1); |
| } |
| |
| ALOGV("image[%u]: size %dx%d", imageIndex, image->width, image->height); |
| |
| AMediaFormat_setInt32(meta, AMEDIAFORMAT_KEY_WIDTH, image->width); |
| AMediaFormat_setInt32(meta, AMEDIAFORMAT_KEY_HEIGHT, image->height); |
| if (image->rotation != 0) { |
| // Rotation angle in HEIF is CCW, convert to CW here to be |
| // consistent with the other media formats. |
| switch(image->rotation) { |
| case 90: |
| case 180: |
| case 270: |
| AMediaFormat_setInt32(meta, AMEDIAFORMAT_KEY_ROTATION, 360 - image->rotation); |
| break; |
| default: break; // don't set if invalid |
| } |
| } |
| // we validated no overflow in IspeBox::parse() |
| AMediaFormat_setInt32(meta, |
| AMEDIAFORMAT_KEY_MAX_INPUT_SIZE, image->width * image->height * 3 / 2); |
| |
| if (!image->thumbnails.empty()) { |
| ssize_t thumbItemIndex = mItemIdToItemMap.indexOfKey(image->thumbnails[0]); |
| if (thumbItemIndex >= 0) { |
| const ImageItem &thumbnail = mItemIdToItemMap[thumbItemIndex]; |
| |
| if (thumbnail.hvcc != NULL) { |
| AMediaFormat_setInt32(meta, |
| AMEDIAFORMAT_KEY_THUMBNAIL_WIDTH, thumbnail.width); |
| AMediaFormat_setInt32(meta, |
| AMEDIAFORMAT_KEY_THUMBNAIL_HEIGHT, thumbnail.height); |
| AMediaFormat_setBuffer(meta, |
| AMEDIAFORMAT_KEY_THUMBNAIL_CSD_HEVC, |
| thumbnail.hvcc->data(), thumbnail.hvcc->size()); |
| ALOGV("image[%u]: thumbnail: size %dx%d, item index %zd", |
| imageIndex, thumbnail.width, thumbnail.height, thumbItemIndex); |
| } else { |
| ALOGW("%s: thumbnail data is missing for image[%u]!", __FUNCTION__, imageIndex); |
| } |
| } else { |
| ALOGW("%s: Referenced thumbnail does not exist!", __FUNCTION__); |
| } |
| } |
| |
| if (image->isGrid()) { |
| AMediaFormat_setInt32(meta, |
| AMEDIAFORMAT_KEY_GRID_ROWS, image->rows); |
| AMediaFormat_setInt32(meta, |
| AMEDIAFORMAT_KEY_GRID_COLUMNS, image->columns); |
| // point image to the first tile for grid size and HVCC |
| image = &mItemIdToItemMap.editValueAt(tileItemIndex); |
| AMediaFormat_setInt32(meta, |
| AMEDIAFORMAT_KEY_TILE_WIDTH, image->width); |
| AMediaFormat_setInt32(meta, |
| AMEDIAFORMAT_KEY_TILE_HEIGHT, image->height); |
| // we validated no overflow in IspeBox::parse() |
| AMediaFormat_setInt32(meta, |
| AMEDIAFORMAT_KEY_MAX_INPUT_SIZE, image->width * image->height * 3 / 2); |
| } |
| |
| if (image->hvcc == NULL) { |
| ALOGE("%s: hvcc is missing for image[%u]!", __FUNCTION__, imageIndex); |
| return NULL; |
| } |
| AMediaFormat_setBuffer(meta, |
| AMEDIAFORMAT_KEY_CSD_HEVC, image->hvcc->data(), image->hvcc->size()); |
| |
| if (image->icc != NULL) { |
| AMediaFormat_setBuffer(meta, |
| AMEDIAFORMAT_KEY_ICC_PROFILE, image->icc->data(), image->icc->size()); |
| } |
| return meta; |
| } |
| |
| status_t ItemTable::findImageItem(const uint32_t imageIndex, uint32_t *itemIndex) { |
| if (!mImageItemsValid) { |
| return INVALID_OPERATION; |
| } |
| |
| if (imageIndex >= mDisplayables.size()) { |
| ALOGE("%s: invalid image index %d", __FUNCTION__, imageIndex); |
| return BAD_VALUE; |
| } |
| |
| *itemIndex = mDisplayables[imageIndex]; |
| |
| ALOGV("image[%u]: item index %u", imageIndex, *itemIndex); |
| return OK; |
| } |
| |
| status_t ItemTable::findThumbnailItem(const uint32_t imageIndex, uint32_t *itemIndex) { |
| if (!mImageItemsValid) { |
| return INVALID_OPERATION; |
| } |
| |
| if (imageIndex >= mDisplayables.size()) { |
| ALOGE("%s: invalid image index %d", __FUNCTION__, imageIndex); |
| return BAD_VALUE; |
| } |
| |
| uint32_t imageItemIndex = mDisplayables[imageIndex]; |
| |
| const ImageItem &imageItem = mItemIdToItemMap[imageItemIndex]; |
| if (imageItem.thumbnails.empty()) { |
| *itemIndex = imageItemIndex; |
| return OK; |
| } |
| |
| ssize_t thumbItemIndex = mItemIdToItemMap.indexOfKey(imageItem.thumbnails[0]); |
| if (thumbItemIndex < 0) { |
| // Do not return the image item in this case, fail it so that the |
| // thumbnail extraction code knows we really don't have it. |
| return INVALID_OPERATION; |
| } |
| |
| *itemIndex = thumbItemIndex; |
| return OK; |
| } |
| |
| status_t ItemTable::getImageOffsetAndSize( |
| uint32_t *itemIndex, off64_t *offset, size_t *size) { |
| if (!mImageItemsValid) { |
| return INVALID_OPERATION; |
| } |
| |
| if (itemIndex != NULL) { |
| if (*itemIndex >= mItemIdToItemMap.size()) { |
| ALOGE("%s: Bad item index!", __FUNCTION__); |
| return BAD_VALUE; |
| } |
| mCurrentItemIndex = *itemIndex; |
| } |
| |
| ImageItem &image = mItemIdToItemMap.editValueAt(mCurrentItemIndex); |
| if (image.isGrid()) { |
| uint32_t tileItemId; |
| status_t err = image.getNextTileItemId(&tileItemId, itemIndex != NULL); |
| if (err != OK) { |
| return err; |
| } |
| ssize_t tileItemIndex = mItemIdToItemMap.indexOfKey(tileItemId); |
| if (tileItemIndex < 0) { |
| return ERROR_END_OF_STREAM; |
| } |
| *offset = mItemIdToItemMap[tileItemIndex].offset; |
| *size = mItemIdToItemMap[tileItemIndex].size; |
| } else { |
| if (itemIndex == NULL) { |
| // For single images, we only allow it to be read once, after that |
| // it's EOS. New item index must be requested each time. |
| return ERROR_END_OF_STREAM; |
| } |
| *offset = mItemIdToItemMap[mCurrentItemIndex].offset; |
| *size = mItemIdToItemMap[mCurrentItemIndex].size; |
| } |
| |
| return OK; |
| } |
| |
| status_t ItemTable::getExifOffsetAndSize(off64_t *offset, size_t *size) { |
| if (!mImageItemsValid) { |
| return INVALID_OPERATION; |
| } |
| |
| ssize_t itemIndex = mItemIdToItemMap.indexOfKey(mPrimaryItemId); |
| |
| // this should not happen, something's seriously wrong. |
| if (itemIndex < 0) { |
| return INVALID_OPERATION; |
| } |
| |
| const ImageItem &image = mItemIdToItemMap[itemIndex]; |
| if (image.cdscRefs.size() == 0) { |
| return NAME_NOT_FOUND; |
| } |
| |
| ssize_t exifIndex = mItemIdToExifMap.indexOfKey(image.cdscRefs[0]); |
| if (exifIndex < 0) { |
| return NAME_NOT_FOUND; |
| } |
| |
| // skip the first 4-byte of the offset to TIFF header |
| uint32_t tiffOffset; |
| if (!mDataSource->readAt( |
| mItemIdToExifMap[exifIndex].offset, &tiffOffset, 4)) { |
| return ERROR_IO; |
| } |
| |
| // We need 'Exif\0\0' before the tiff header |
| tiffOffset = ntohl(tiffOffset); |
| if (tiffOffset < 6) { |
| return ERROR_MALFORMED; |
| } |
| // The first 4-byte of the item is the offset of the tiff header within the |
| // exif data. The size of the item should be > 4 for a non-empty exif (this |
| // was already checked when the item was added). Also check that the tiff |
| // header offset is valid. |
| if (mItemIdToExifMap[exifIndex].size <= 4 || |
| tiffOffset > mItemIdToExifMap[exifIndex].size - 4) { |
| return ERROR_MALFORMED; |
| } |
| |
| // Offset of 'Exif\0\0' relative to the beginning of 'Exif' item |
| // (first 4-byte is the tiff header offset) |
| uint32_t exifOffset = 4 + tiffOffset - 6; |
| *offset = mItemIdToExifMap[exifIndex].offset + exifOffset; |
| *size = mItemIdToExifMap[exifIndex].size - exifOffset; |
| return OK; |
| } |
| |
| } // namespace heif |
| |
| } // namespace android |