read osmheader
This commit is contained in:
Peter
parent
e82bd8f39c
commit
a02882c423
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@ -15,6 +15,7 @@ char unpack_buffer[MAX_BLOB_SIZE];
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OSMPBF::BlobHeader blobheader;
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OSMPBF::Blob blob;
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OSMPBF::HeaderBlock osmheader;
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/**
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* prints a formatted message to stderr, optionally color coded
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@ -111,17 +112,17 @@ int main(int argc, char *argv[]) {
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// tell about the blob-header
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info("BlobHeader (%d bytes)", sz);
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debug(" type = %s", blobheader.type().c_str());
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debug(" type = %s", blobheader.type().c_str());
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// size of the following blob
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sz = blobheader.datasize();
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debug(" datasize = %u", sz);
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debug(" datasize = %u", sz);
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// optional indexdata
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if(blobheader.has_indexdata())
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debug(" indexdata = %u bytes", blobheader.indexdata().size());
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debug(" indexdata = %u bytes", blobheader.indexdata().size());
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else
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debug(" no indexdata");
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debug(" no indexdata");
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// ensure the blob is smaller then MAX_BLOB_SIZE
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if(sz > MAX_BLOB_SIZE)
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@ -147,10 +148,10 @@ int main(int argc, char *argv[]) {
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// check that raw_size is set correctly
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if(sz != blob.raw_size())
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warn(" reports wrong raw_size: %u bytes", blob.raw_size());
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warn(" reports wrong raw_size: %u bytes", blob.raw_size());
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// tell about the blob-data
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debug(" contains uncompressed data: %u bytes", sz);
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debug(" contains uncompressed data: %u bytes", sz);
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// copy the uncompressed data over to the unpack_buffer
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memcpy(unpack_buffer, buffer, sz);
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@ -160,7 +161,7 @@ int main(int argc, char *argv[]) {
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if(blob.has_zlib_data()) {
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// if the flag is raised issue a warning, a blob may only contain one data stream
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if(flag)
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warn(" contains raw- and zlib-data at the same time");
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warn(" contains raw- and zlib-data at the same time");
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// raise the flag - we have at least one datastream
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flag = true;
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@ -169,8 +170,8 @@ int main(int argc, char *argv[]) {
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sz = blob.zlib_data().size();
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// tell about the compressed data
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debug(" contains zlib-compressed data: %u bytes", sz);
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debug(" uncompressed size: %u bytes", blob.raw_size());
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debug(" contains zlib-compressed data: %u bytes", sz);
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debug(" uncompressed size: %u bytes", blob.raw_size());
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// zlib information
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z_stream z;
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@ -193,39 +194,75 @@ int main(int argc, char *argv[]) {
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z.opaque = Z_NULL;
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if(inflateInit(&z) != Z_OK) {
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err(" failed to init zlib stream");
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err(" failed to init zlib stream");
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}
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if(inflate(&z, Z_FINISH) != Z_STREAM_END) {
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err(" failed to inflate zlib stream");
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err(" failed to inflate zlib stream");
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}
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if(inflateEnd(&z) != Z_OK) {
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err(" failed to deinit zlib stream");
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err(" failed to deinit zlib stream");
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}
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// unpacked size
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sz = z.total_out;
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}
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// if the blob has lzma-compressed data
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if(blob.has_lzma_data()) {
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// if the flag is raised issue a warning, a blob may only contain one data stream
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if(flag)
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warn(" contains raw- and lzma-data at the same time");
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warn(" contains raw- and lzma-data at the same time");
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// raise the flag - we have at least one datastream
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flag = true;
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// tell about the compressed data
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debug(" contains lzma-compressed data: %u bytes", blob.lzma_data().size());
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debug(" uncompressed size: %u bytes", blob.raw_size());
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debug(" contains lzma-compressed data: %u bytes", blob.lzma_data().size());
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debug(" uncompressed size: %u bytes", blob.raw_size());
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// issue a warning, lzma compression is not yet supported
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err(" lzma-decompression is not supported");
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err(" lzma-decompression is not supported");
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}
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// check the flag is raised and we have at least one data-stream
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if(!flag)
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err(" does not contain any known data stream");
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err(" does not contain any known data stream");
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// lower the flag
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flag = false;
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// switch between different blob-types
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if(blobheader.type() == "OSMHeader") {
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// tell about the OSMHeader blob
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info(" OSMHeader");
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// parse the OSMHeader from the blob
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osmheader.ParseFromArray(unpack_buffer, sz);
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// tell about the required features
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for(int i = 0, l = osmheader.required_features_size(); i < l; i++)
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debug(" required_feature: %s", osmheader.required_features(i).c_str());
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// tell about the optional features
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for(int i = 0, l = osmheader.optional_features_size(); i < l; i++)
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debug(" required_feature: %s", osmheader.optional_features(i).c_str());
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// tell about the writing program
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debug(" writingprogram: %s", osmheader.writingprogram().c_str());
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// tell about the source
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debug(" source: %s", osmheader.source().c_str());
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}
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else if(blobheader.type() == "OSMData") {
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// tell about the OSMData blob
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info(" OSMData");
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}
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else {
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// unknown blob type
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warn(" unknown blob type: %s", blobheader.type().c_str());
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}
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}
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// close the file pointer
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