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Commit a90ee000 authored by Fyodor Kyslov's avatar Fyodor Kyslov
Browse files

jpegrecoverymap: propagate EXIF to upper level 

Test: manual
Bug: b/252835416
Change-Id: I83afd787d2d689a03d1adc4205b29f8e53c6e0dc
parent ea9180ff

libs/jpegrecoverymap/include/jpegrecoverymap/jpegdecoder.h

+3 −3
Original line number Diff line number Diff line
@@ -86,12 +86,12 @@ public: 
     */

    int getEXIFPos() { return mExifPos; }

    /*

     * Decompresses metadata of the image.

     * Decompresses metadata of the image. All vectors are owned by the caller.

     */

    bool getCompressedImageParameters(const void* image, int length,

                                      size_t* pWidth, size_t* pHeight,

                                      std::vector<uint8_t>* &iccData,

                                      std::vector<uint8_t>* &exifData);

                                      std::vector<uint8_t>* iccData,

                                      std::vector<uint8_t>* exifData);

    /*

     * Extracts EXIF package and updates the EXIF position / length without decoding the image.

     */

libs/jpegrecoverymap/include/jpegrecoverymap/recoverymap.h

+2 −1
Original line number Diff line number Diff line
@@ -244,7 +244,8 @@ public: 
    *

    * The output is filled jpegr_info structure

    * @param compressed_jpegr_image compressed JPEGR image

    * @param jpegr_info pointer to output JPEGR info

    * @param jpegr_info pointer to output JPEGR info. Members of jpegr_info

    *         are owned by the caller

    * @return NO_ERROR if JPEGR parsing succeeds, error code otherwise

    */

    status_t getJPEGRInfo(jr_compressed_ptr compressed_jpegr_image,

libs/jpegrecoverymap/jpegdecoder.cpp

+20 −3
Original line number Diff line number Diff line
@@ -311,7 +311,7 @@ bool JpegDecoder::decompress(jpeg_decompress_struct* cinfo, const uint8_t* dest, 


bool JpegDecoder::getCompressedImageParameters(const void* image, int length,

                              size_t *pWidth, size_t *pHeight,

                              std::vector<uint8_t> *&iccData , std::vector<uint8_t> *&exifData) {

                              std::vector<uint8_t> *iccData , std::vector<uint8_t> *exifData) {

    jpeg_decompress_struct cinfo;

    jpegr_source_mgr mgr(static_cast<const uint8_t*>(image), length);

    jpegrerror_mgr myerr;
@@ -336,10 +336,27 @@ bool JpegDecoder::getCompressedImageParameters(const void* image, int length, 
    *pWidth = cinfo.image_width;

    *pHeight = cinfo.image_height;



    //TODO: Parse iccProfile and exifData

    //TODO: Parse iccProfile

    (void)iccData;

    (void)exifData;



    if (exifData != nullptr) {

        bool exifAppears = false;

        for (jpeg_marker_struct* marker = cinfo.marker_list; marker && !exifAppears;

             marker = marker->next) {

            if (marker->marker != kAPP1Marker) {

                continue;

            }



            const unsigned int len = marker->data_length;

            if (len >= kExifIdCode.size() &&

                !strncmp(reinterpret_cast<const char*>(marker->data), kExifIdCode.c_str(),

                         kExifIdCode.size())) {

                exifData->resize(len, 0);

                memcpy(static_cast<void*>(exifData->data()), marker->data, len);

                exifAppears = true;

            }

        }

    }



    jpeg_destroy_decompress(&cinfo);

    return true;