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Diffstat (limited to 'libs/jpegrecoverymap/recoverymaputils.cpp')
-rw-r--r--libs/jpegrecoverymap/recoverymaputils.cpp191
1 files changed, 1 insertions, 190 deletions
diff --git a/libs/jpegrecoverymap/recoverymaputils.cpp b/libs/jpegrecoverymap/recoverymaputils.cpp
index d5ad9a51c4..1617b8b97a 100644
--- a/libs/jpegrecoverymap/recoverymaputils.cpp
+++ b/libs/jpegrecoverymap/recoverymaputils.cpp
@@ -22,8 +22,6 @@
#include <image_io/xml/xml_handler.h>
#include <image_io/xml/xml_rule.h>
-#include <utils/Log.h>
-
using namespace photos_editing_formats::image_io;
using namespace std;
@@ -55,12 +53,6 @@ status_t Write(jr_compressed_ptr destination, const void* source, size_t length,
return NO_ERROR;
}
-status_t Write(jr_exif_ptr destination, const void* source, size_t length, int &position) {
- memcpy((uint8_t*)destination->data + sizeof(uint8_t) * position, source, length);
- position += length;
- return NO_ERROR;
-}
-
// Extremely simple XML Handler - just searches for interesting elements
class XMPXmlHandler : public XmlHandler {
public:
@@ -344,185 +336,4 @@ string generateXmp(int secondary_image_length, jpegr_metadata& metadata) {
return ss.str();
}
-/*
- * Helper function
- * Add J R entry to existing exif, or create a new one with J R entry if it's null.
- */
-status_t updateExif(jr_exif_ptr exif, jr_exif_ptr dest) {
- if (exif == nullptr || exif->data == nullptr) {
- uint8_t data[PSEUDO_EXIF_PACKAGE_LENGTH] = {
- 0x45, 0x78, 0x69, 0x66, 0x00, 0x00,
- 0x49, 0x49, 0x2A, 0x00,
- 0x08, 0x00, 0x00, 0x00,
- 0x01, 0x00,
- 0x4A, 0x52,
- 0x07, 0x00,
- 0x01, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00};
- int pos = 0;
- Write(dest, data, PSEUDO_EXIF_PACKAGE_LENGTH, pos);
- return NO_ERROR;
- }
-
- int num_entry = 0;
- uint8_t num_entry_low = 0;
- uint8_t num_entry_high = 0;
- bool use_big_endian = false;
- if (reinterpret_cast<uint16_t*>(exif->data)[3] == 0x4949) {
- num_entry_low = reinterpret_cast<uint8_t*>(exif->data)[14];
- num_entry_high = reinterpret_cast<uint8_t*>(exif->data)[15];
- } else if (reinterpret_cast<uint16_t*>(exif->data)[3] == 0x4d4d) {
- use_big_endian = true;
- num_entry_high = reinterpret_cast<uint8_t*>(exif->data)[14];
- num_entry_low = reinterpret_cast<uint8_t*>(exif->data)[15];
- } else {
- return ERROR_JPEGR_METADATA_ERROR;
- }
- num_entry = (num_entry_high << 8) | num_entry_low;
- num_entry += 1;
- num_entry_low = num_entry & 0xff;
- num_entry_high = (num_entry >> 8) & 0xff;
-
- int pos = 0;
- Write(dest, (uint8_t*)exif->data, 14, pos);
-
- if (use_big_endian) {
- Write(dest, &num_entry_high, 1, pos);
- Write(dest, &num_entry_low, 1, pos);
- uint8_t data[EXIF_J_R_ENTRY_LENGTH] = {
- 0x4A, 0x52,
- 0x00, 0x07,
- 0x00, 0x00, 0x00, 0x01,
- 0x00, 0x00, 0x00, 0x00};
- Write(dest, data, EXIF_J_R_ENTRY_LENGTH, pos);
- } else {
- Write(dest, &num_entry_low, 1, pos);
- Write(dest, &num_entry_high, 1, pos);
- uint8_t data[EXIF_J_R_ENTRY_LENGTH] = {
- 0x4A, 0x52,
- 0x07, 0x00,
- 0x01, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00};
- Write(dest, data, EXIF_J_R_ENTRY_LENGTH, pos);
- }
-
- Write(dest, (uint8_t*)exif->data + 16, exif->length - 16, pos);
-
- updateExifOffsets(dest,
- 28, // start from the second tag, skip the "JR" tag
- num_entry - 1,
- use_big_endian);
-
- return NO_ERROR;
-}
-
-/*
- * Helper function
- * Modify offsets in EXIF in place.
- */
-void updateExifOffsets(jr_exif_ptr exif, int pos, bool use_big_endian) {
- int num_entry = readValue(reinterpret_cast<uint8_t*>(exif->data), pos, 2, use_big_endian);
- updateExifOffsets(exif, pos + 2, num_entry, use_big_endian);
-}
-
-void updateExifOffsets(jr_exif_ptr exif, int pos, int num_entry, bool use_big_endian) {
- for (int i = 0; i < num_entry; pos += EXIF_J_R_ENTRY_LENGTH, i++) {
- int tag = readValue(reinterpret_cast<uint8_t*>(exif->data), pos, 2, use_big_endian);
- bool need_to_update_offset = false;
- if (tag == 0x8769) {
- need_to_update_offset = true;
- int sub_ifd_offset =
- readValue(reinterpret_cast<uint8_t*>(exif->data), pos + 8, 4, use_big_endian)
- + 6 // "Exif\0\0";
- + EXIF_J_R_ENTRY_LENGTH;
- updateExifOffsets(exif, sub_ifd_offset, use_big_endian);
- } else {
- int data_format =
- readValue(reinterpret_cast<uint8_t*>(exif->data), pos + 2, 2, use_big_endian);
- int num_of_components =
- readValue(reinterpret_cast<uint8_t*>(exif->data), pos + 4, 4, use_big_endian);
- int data_length = findFormatLengthInBytes(data_format) * num_of_components;
- if (data_length > 4) {
- need_to_update_offset = true;
- }
- }
-
- if (!need_to_update_offset) {
- continue;
- }
-
- int offset = readValue(reinterpret_cast<uint8_t*>(exif->data), pos + 8, 4, use_big_endian);
-
- offset += EXIF_J_R_ENTRY_LENGTH;
-
- if (use_big_endian) {
- reinterpret_cast<uint8_t*>(exif->data)[pos + 11] = offset & 0xff;
- reinterpret_cast<uint8_t*>(exif->data)[pos + 10] = (offset >> 8) & 0xff;
- reinterpret_cast<uint8_t*>(exif->data)[pos + 9] = (offset >> 16) & 0xff;
- reinterpret_cast<uint8_t*>(exif->data)[pos + 8] = (offset >> 24) & 0xff;
- } else {
- reinterpret_cast<uint8_t*>(exif->data)[pos + 8] = offset & 0xff;
- reinterpret_cast<uint8_t*>(exif->data)[pos + 9] = (offset >> 8) & 0xff;
- reinterpret_cast<uint8_t*>(exif->data)[pos + 10] = (offset >> 16) & 0xff;
- reinterpret_cast<uint8_t*>(exif->data)[pos + 11] = (offset >> 24) & 0xff;
- }
- }
-}
-
-/*
- * Read data from the target position and target length in bytes;
- */
-int readValue(uint8_t* data, int pos, int length, bool use_big_endian) {
- if (length == 2) {
- if (use_big_endian) {
- return (data[pos] << 8) | data[pos + 1];
- } else {
- return (data[pos + 1] << 8) | data[pos];
- }
- } else if (length == 4) {
- if (use_big_endian) {
- return (data[pos] << 24) | (data[pos + 1] << 16) | (data[pos + 2] << 8) | data[pos + 3];
- } else {
- return (data[pos + 3] << 24) | (data[pos + 2] << 16) | (data[pos + 1] << 8) | data[pos];
- }
- } else {
- // Not support for now.
- ALOGE("Error in readValue(): pos=%d, length=%d", pos, length);
- return -1;
- }
-}
-
-/*
- * Helper function
- * Returns the length of data format in bytes
- */
-int findFormatLengthInBytes(int data_format) {
- switch (data_format) {
- case 1: // unsigned byte
- case 2: // ascii strings
- case 6: // signed byte
- case 7: // undefined
- return 1;
-
- case 3: // unsigned short
- case 8: // signed short
- return 2;
-
- case 4: // unsigned long
- case 9: // signed long
- case 11: // single float
- return 4;
-
- case 5: // unsigned rational
- case 10: // signed rational
- case 12: // double float
- return 8;
-
- default:
- // should not hit here
- ALOGE("Error in findFormatLengthInBytes(): data_format=%d", data_format);
- return -1;
- }
-}
-
-} // namespace android::recoverymap \ No newline at end of file
+} // namespace android::recoverymap
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