473    png_alloc_size_t     input_len;    /* Its length */  member
480    png_alloc_size_t input_len)  in png_text_compress_init()  argument
483    comp->input_len = input_len;  in png_text_compress_init()
504    ret = png_deflate_claim(png_ptr, chunk_name, comp->input_len);  in png_text_compress()
517       png_alloc_size_t input_len = comp->input_len; /* may be zero! */  in png_text_compress()  local
532          if (avail_in > input_len)  in png_text_compress()
533             avail_in = (uInt)input_len;  in png_text_compress()
535          input_len -= avail_in;  in png_text_compress()
582             input_len > 0 ? Z_NO_FLUSH : Z_FINISH);  in png_text_compress()
587          input_len += png_ptr->zstream.avail_in;  in png_text_compress()
618       if (ret == Z_STREAM_END && input_len == 0)  in png_text_compress()
621          optimize_cmf(comp->output, comp->input_len);  in png_text_compress()
1006    png_alloc_size_t input_len, int flush)  in png_compress_IDAT()  argument
1049       if (avail > input_len)  in png_compress_IDAT()
1050          avail = (uInt)input_len; /* safe because of the check */  in png_compress_IDAT()
1053       input_len -= avail;  in png_compress_IDAT()
1055       ret = deflate(&png_ptr->zstream, input_len > 0 ? Z_NO_FLUSH : flush);  in png_compress_IDAT()
1058       input_len += png_ptr->zstream.avail_in;  in png_compress_IDAT()
1102          if (input_len == 0)  in png_compress_IDAT()
1745       if (comp.input_len > PNG_UINT_31_MAX-prefix_len)  in png_write_iTXt()
1749       comp.output_len = (png_uint_32)/*SAFE*/comp.input_len;  in png_write_iTXt()
1764       png_write_chunk_data(png_ptr, (png_const_bytep)text, comp.input_len);  in png_write_iTXt()