ocm/fileformat.proto

/** Copyright (c) 2010 Scott A. Crosby. <scott@sacrosby.com>

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as 
   published by the Free Software Foundation, either version 3 of the 
   License, or (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

option optimize_for = LITE_RUNTIME;
option java_package = "crosby.binary";
package OSMPBF;

//protoc --java_out=../.. fileformat.proto


//
//  STORAGE LAYER: Storing primitives.
//

message Blob {
  optional bytes raw = 1; // No compression
  optional int32 raw_size = 2; // When compressed, the uncompressed size

  // Possible compressed versions of the data.
  optional bytes zlib_data = 3;

  // PROPOSED feature for LZMA compressed data. SUPPORT IS NOT REQUIRED.
  optional bytes lzma_data = 4;

  // Formerly used for bzip2 compressed data. Depreciated in 2010.
  optional bytes OBSOLETE_bzip2_data = 5 [deprecated=true]; // Don't reuse this tag number.
}

/* A file contains an sequence of fileblock headers, each prefixed by
their length in network byte order, followed by a data block
containing the actual data. types staring with a "_" are reserved.
*/

message BlobHeader {
  required string type = 1;
  optional bytes indexdata = 2;
  required int32 datasize = 3;
}