Line data    Source code

       1             : /******************************************************************************
       2             :  *
       3             :  * Project:  HEIF Driver
       4             :  * Author:   Even Rouault <even.rouault at spatialys.com>
       5             :  *
       6             :  ******************************************************************************
       7             :  * Copyright (c) 2020, Even Rouault <even.rouault at spatialys.com>
       8             :  *
       9             :  * Permission is hereby granted, free of charge, to any person obtaining a
      10             :  * copy of this software and associated documentation files (the "Software"),
      11             :  * to deal in the Software without restriction, including without limitation
      12             :  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      13             :  * and/or sell copies of the Software, and to permit persons to whom the
      14             :  * Software is furnished to do so, subject to the following conditions:
      15             :  *
      16             :  * The above copyright notice and this permission notice shall be included
      17             :  * in all copies or substantial portions of the Software.
      18             :  *
      19             :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
      20             :  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      21             :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
      22             :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      23             :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      24             :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      25             :  * DEALINGS IN THE SOFTWARE.
      26             :  ****************************************************************************/
      27             : 
      28             : #include "include_libheif.h"
      29             : 
      30             : #include "heifdrivercore.h"
      31             : 
      32             : /************************************************************************/
      33             : /*                    HEIFDriverIdentifySimplified()                    */
      34             : /************************************************************************/
      35             : 
      36       47875 : int HEIFDriverIdentifySimplified(GDALOpenInfo *poOpenInfo)
      37             : 
      38             : {
      39       47875 :     if (STARTS_WITH_CI(poOpenInfo->pszFilename, "HEIF:"))
      40           8 :         return true;
      41             : 
      42       47867 :     if (poOpenInfo->nHeaderBytes < 12 || poOpenInfo->fpL == nullptr)
      43       45342 :         return false;
      44             : 
      45             :     // Simplistic test...
      46        2525 :     const unsigned char abySig1[] = "\x00"
      47             :                                     "\x00"
      48             :                                     "\x00"
      49             :                                     "\x20"
      50             :                                     "ftypheic";
      51        2525 :     const unsigned char abySig2[] = "\x00"
      52             :                                     "\x00"
      53             :                                     "\x00"
      54             :                                     "\x18"
      55             :                                     "ftypheic";
      56        2525 :     const unsigned char abySig3[] = "\x00"
      57             :                                     "\x00"
      58             :                                     "\x00"
      59             :                                     "\x18"
      60             :                                     "ftypmif1"
      61             :                                     "\x00"
      62             :                                     "\x00"
      63             :                                     "\x00"
      64             :                                     "\x00"
      65             :                                     "mif1heic";
      66        5050 :     return (poOpenInfo->nHeaderBytes >= static_cast<int>(sizeof(abySig1)) &&
      67        2525 :             memcmp(poOpenInfo->pabyHeader, abySig1, sizeof(abySig1)) == 0) ||
      68        2525 :            (poOpenInfo->nHeaderBytes >= static_cast<int>(sizeof(abySig2)) &&
      69        7568 :             memcmp(poOpenInfo->pabyHeader, abySig2, sizeof(abySig2)) == 0) ||
      70        2518 :            (poOpenInfo->nHeaderBytes >= static_cast<int>(sizeof(abySig3)) &&
      71        5030 :             memcmp(poOpenInfo->pabyHeader, abySig3, sizeof(abySig3)) == 0);
      72             : }
      73             : 
      74             : /************************************************************************/
      75             : /*                     HEIFDriverSetCommonMetadata()                    */
      76             : /************************************************************************/
      77             : 
      78        1227 : void HEIFDriverSetCommonMetadata(GDALDriver *poDriver)
      79             : {
      80        1227 :     poDriver->SetDescription(DRIVER_NAME);
      81        1227 :     poDriver->SetMetadataItem(GDAL_DCAP_RASTER, "YES");
      82        1227 :     poDriver->SetMetadataItem(
      83             :         GDAL_DMD_LONGNAME,
      84        1227 :         "ISO/IEC 23008-12:2017 High Efficiency Image File Format");
      85        1227 :     poDriver->SetMetadataItem(GDAL_DMD_MIMETYPE, "image/heic");
      86        1227 :     poDriver->SetMetadataItem(GDAL_DMD_HELPTOPIC, "drivers/raster/heif.html");
      87        1227 :     poDriver->SetMetadataItem(GDAL_DMD_EXTENSION, "heic");
      88             : #ifdef HAS_CUSTOM_FILE_READER
      89        1227 :     poDriver->SetMetadataItem(GDAL_DCAP_VIRTUALIO, "YES");
      90             : #endif
      91             : 
      92        1227 :     poDriver->SetMetadataItem("LIBHEIF_VERSION", LIBHEIF_VERSION);
      93             : 
      94        1227 :     poDriver->pfnIdentify = HEIFDriverIdentifySimplified;
      95        1227 :     poDriver->SetMetadataItem(GDAL_DCAP_OPEN, "YES");
      96        1227 : }
      97             : 
      98             : /************************************************************************/
      99             : /*                     DeclareDeferredHEIFPlugin()                      */
     100             : /************************************************************************/
     101             : 
     102             : #ifdef PLUGIN_FILENAME
     103        1522 : void DeclareDeferredHEIFPlugin()
     104             : {
     105        1522 :     if (GDALGetDriverByName(DRIVER_NAME) != nullptr)
     106             :     {
     107         301 :         return;
     108             :     }
     109        1221 :     auto poDriver = new GDALPluginDriverProxy(PLUGIN_FILENAME);
     110             : #ifdef PLUGIN_INSTALLATION_MESSAGE
     111             :     poDriver->SetMetadataItem(GDAL_DMD_PLUGIN_INSTALLATION_MESSAGE,
     112             :                               PLUGIN_INSTALLATION_MESSAGE);
     113             : #endif
     114        1221 :     HEIFDriverSetCommonMetadata(poDriver);
     115        1221 :     GetGDALDriverManager()->DeclareDeferredPluginDriver(poDriver);
     116             : }
     117             : #endif