6 /// \brief      Encodes Block Header for .xz files
17 lzma_block_header_size(lzma_block *block)  in lzma_block_header_size()  argument
19 	if (block->version > 1)  in lzma_block_header_size()
22 	// Block Header Size + Block Flags + CRC32.  in lzma_block_header_size()
26 	if (block->compressed_size != LZMA_VLI_UNKNOWN) {  in lzma_block_header_size()
27 		const uint32_t add = lzma_vli_size(block->compressed_size);  in lzma_block_header_size()
28 		if (add == 0 || block->compressed_size == 0)  in lzma_block_header_size()
35 	if (block->uncompressed_size != LZMA_VLI_UNKNOWN) {  in lzma_block_header_size()
36 		const uint32_t add = lzma_vli_size(block->uncompressed_size);  in lzma_block_header_size()
44 	if (block->filters == NULL || block->filters[0].id == LZMA_VLI_UNKNOWN)  in lzma_block_header_size()
47 	for (size_t i = 0; block->filters[i].id != LZMA_VLI_UNKNOWN; ++i) {  in lzma_block_header_size()
54 				block->filters + i));  in lzma_block_header_size()
60 	block->header_size = (size + 3) & ~UINT32_C(3);  in lzma_block_header_size()
62 	// NOTE: We don't verify that the encoded size of the Block stays  in lzma_block_header_size()
65 	// space for Block Header, and later called again with lower,  in lzma_block_header_size()
73 lzma_block_header_encode(const lzma_block *block, uint8_t *out)  in lzma_block_header_encode()  argument
76 	if (lzma_block_unpadded_size(block) == 0  in lzma_block_header_encode()
77 			|| !lzma_vli_is_valid(block->uncompressed_size))  in lzma_block_header_encode()
81 	const size_t out_size = block->header_size - 4;  in lzma_block_header_encode()
83 	// Store the Block Header Size.  in lzma_block_header_encode()
86 	// We write Block Flags in pieces.  in lzma_block_header_encode()
91 	if (block->compressed_size != LZMA_VLI_UNKNOWN) {  in lzma_block_header_encode()
92 		return_if_error(lzma_vli_encode(block->compressed_size, NULL,  in lzma_block_header_encode()
99 	if (block->uncompressed_size != LZMA_VLI_UNKNOWN) {  in lzma_block_header_encode()
100 		return_if_error(lzma_vli_encode(block->uncompressed_size, NULL,  in lzma_block_header_encode()
107 	if (block->filters == NULL || block->filters[0].id == LZMA_VLI_UNKNOWN)  in lzma_block_header_encode()
117 				block->filters + filter_count,  in lzma_block_header_encode()
120 	} while (block->filters[++filter_count].id != LZMA_VLI_UNKNOWN);  in lzma_block_header_encode()